NAME
tgif - Xlib based interactive 2-D drawing facility under X11. Supports
hierarchical construction of drawings and easy navigation between sets
of drawings. It’s also a hyper-graphics (or hyper-structured-graphics)
browser on the World-Wide-Web.
SYNOPSIS
tgif [-display displayname] [-fg <color>] [-bg <color>] [-bd <color>]
[-rv] [-nv] [-bw] [-reqcolor] [-cwo[+sbwarp]] [-hyper] [-exec <file>]
[-dbim {xcin|chinput|xim|kinput2|tgtwb5[,font]}] [-sbim xim] [-usexlib]
[-a4] [-listdontreencode] [-version] [-pdfspd | -pdfspd=true |
-pdfspd=false ] [-pssetup "<string>" ] [-nomode] [-geometry <geom>]
[=<geom>] [{file[.obj]|-merge file1[.obj] file2[.obj] ...}]
or
tgif -print [-eps] [-p] [-ps] [-f] [-text] [-epsi] [-tiffepsi] [-gif]
[-png] [-jpeg] [-ppm] [-pbm] [-xpm] [-xbm] [-html] [-pdf] [-netlist]
[-display displayname] [-stdout] [-raw[+h[eaderonly]]] [-dosepsfilter
[-previewonly]] [-status] [-gray] [-color | -reqcolor] [-adobe |
-adobe=<number>/<number> | -adobe=false ] [-dontreencode=<string> |
-listdontreencode] [-version | -justversion] [-producedby=<string>]
[-page <number>] [-print_cmd "<command>"] [-one_file_per_page] [-pepsc]
[-pdfspd | -pdfspd=true | -pdfspd=false ] [-pssetup "<string>" ]
[-j2p6_cmd "<command>" ] [-dontcondense | -condensed] [-a4]
[-noshowpageineps] [-quiet] [-bop_hook "<string>"] [-eop_hook
"<string>"] [-tmp_file_mode "<octal number>"] [-o<dir>] [-exec <file>]
[file1[.obj] file2[.obj] ...]
DESCRIPTION
Tgif is an interactive drawing tool that allows the user to draw and
manipulate objects in the X Window System. Tgif runs interactively in
the first form. In the second form shown in the SYNOPSIS section, tgif
just prints file1.obj, file2.obj, etc. (generated by tgif) into
PostScript(TM) page description files (without opening windows or
fonts) and pipes them to lpr(1) if none of the -eps, -p, -epsi,
-tiffepsi, -gif, -png, -jpeg, -ppm, -pbm, -xpm, -xbm, -html, -pdf, -ps,
-f, -text, or -netlist options are specified. This form of printing is
tgif’s way of exporting a tgif file to another format. In this case,
any other unrecognized command line options are sent to lpr(1). In
this mode, tgif is compatible with the obsoleted prtgif. A symbol file
(see descriptions below) can also be printed by specifying the .sym
extension explicitly.
The command line argument file specifies a file or an Uniform Resource
Locator (URL) of objects to be initially edited by tgif. Only HTTP or
FTP URL’s are supported. (For a more detailed description of URL and
the World-Wide-Web, the reader is referred to [1].)
Tgif is purely based on Xlib. It is tested under X11R6, and it
requires a 3 button mouse.
OPTIONS
In the first form shown in the SYNOPSIS section, the command line
arguments can be:
-fg Foreground color specified in <color>.
-bg Background color specified in <color>.
-bd Border color specified in <color>.
-rv Start tgif in reversed-video mode.
-nv Start tgif in normal-video mode.
-bw Start tgif in black and white mode.
-reqcolor
Same effect as setting the Tgif.PrintUsingRequestedColor X
default to true (see the X DEFAULTS section below).
-cwo Canvas Window Only. Only the canvas window (see TGIF SUBWINDOWS
section below) will be displayed. This has the same effect as
setting the Tgif.CanvasWindowOnly X default to true.
-cwo+sbwarp
If -cwo+sbwarp is used, single-button-warp (clicking the left
mouse button to warp) is used to activate teleporting (see
TELEPORT/HYPERJUMP section below).
-hyper Start tgif in the hyperspace mode (see HYPERSPACE section
below).
-exec <file>
After tgif starts, execute the internal command in <file> (see
INTERNAL COMMANDS section below). If <file> is the string "-",
tgif executes internal commands from the standard input.
-dbim method
Use method as the input method for double-byte fonts (see SQUARE
DOUBLE BYTE FONTS section below). This cannot be used in
conjunction with -sbim.
-sbim method
Use method as the input method for single-byte fonts. This is
useful if the X Keyboard Extension is used in inputing
international characters (with dead keys). This cannot be used
in conjunction with -dbim.
-usexlib
If tgif is compiled with -DUSE_XT_INITIALIZE, X Toolkit
initialization routines will be used to setup tgif. Using this
command line option will force tgif to ignore the
-DUSE_XT_INITIALIZE compiler option and use Xlib only. This is
useful when the system resource file for tgif is not installed
properly or messed up and needs to be bypassed.
-a4 Using this option has the same effect as setting the
Tgif.PSA4PaperSize X default to true.
-noshowpageineps
Using this option has the same effect as setting the
Tgif.ShowPageInEPS X default to false.
-quiet If this option is used, tgif will surpress standard messages.
-listdontreencode=<string>
If this option is used, tgif will print out the list of
PostScript font names specified in the -D_DONT_REENCODE compiler
option used in compiling tgif.
In the second form shown in the SYNOPSIS section, the command line
arguments can be:
-version
If this option is used, tgif will print out its version number
and copyright on the command line.
-justversion
If this option is used, tgif will print out its version number
and copyright on the command line and exits immediately.
-nomode
Using this option has the same effect as setting the
Tgif.NoModeWindow X default to true.
-eps (or -p)
Generates an Encapsulated PostScript(TM) file in file.eps; this
file can be included in a LaTeX file through the \psfig, \epsf,
or \psfile construct (see the LATEX FIGURE FORMATS section
below).
-ps (or -f)
Generates a PostScript file in file.ps; this file can be printed
to a PostScript printer with lpr(1).
-text Generates a text file in file.txt; the text file contains all
visible text and can be fed to a spell checker.
-epsi Generates an Encapsulated PostScript (EPS) file with a preview
bitmap in file.eps. Tgif aborts if a valid display is not
accessible.
-tiffepsi
Generates an EPS file with a DOS EPS Binary File Header and a
trailing TIFF image in file.eps. See the GENERATING MICROSOFT
WINDOWS EPSI FILES section for more details. Tgif aborts if a
valid display is not accessible.
-gif Generates a GIF file in file.gif. Please see the notes for
Tgif.GifToXpm in the X DEFAULTS section below. Tgif aborts if a
valid display is not accessible.
-png Generates a PNG file in file.png. Tgif aborts if a valid
display is not accessible.
-jpeg Generates a JPEG file in file.jpg. Tgif aborts if a valid
display is not accessible.
-ppm Generates a PPM file in file.ppm. Tgif aborts if a valid
display is not accessible.
-pbm Generates a PBM file in file.pbm. Tgif aborts if a valid
display is not accessible.
-xpm Generates an X11 pixmap (XPM) file in file.xpm. Tgif aborts if
a valid display is not accessible.
-xbm Generates an X11 bitmap (XBM) file in file.xbm. Tgif aborts if
a valid display is not accessible.
-html Generates a GIF file in file.gif and an HTML file in file.html.
Tgif aborts if a valid display is not accessible.
-pdf Generates a GIF file in file.gif and an PDF file in file.pdf.
Please see the notes for Tgif.PsToPdf in the X DEFAULTS section
below.
-netlist
Generates a text file in file.net and a text file in file.cmp.
file.net contains netlist information stored in a table. The
first line in it contains column names and each line in it is a
port name (surrounded by double-quotes), followed by a comma and
a <TAB> character, followed by a signal name (also surrounded by
double-quotes). file.cmp contains information about components
in the file. Each component begins with its name followed by
its type. The attributes of a component are printed afterwards
(indented by <TAB> characters).
-stdout
Sends the output to the standard output instead of generating
the output in a file.
-raw Causes the content of the files to be dumped to stdout.
-raw+h If -raw+h is used and if the file is an HTTP URL, the HTTP
header is also dumped to stdout.
-raw+headeronly
If -raw+headeronly is used and if the file is an HTTP URL, the
HTTP header is dumped to stdout.
-dosepsfilter
Makes tgif act as a filter for getting rid of the DOS EPS Binary
File Header and the trailing TIFF image in a DOS/Windows EPS
file.
-previewonly
If -dosepsfilter is specified, -previewonly makes tgif act as a
filter for extracting the preview bitmap from the trailing TIFF
image in a DOS/Windows EPS file.
-status
If this option is used in conjunction with either -raw, -raw+h,
or -raw+headeronly causes a status line to be displayed in
stderr.
-gray Using this option has the same effect as setting the
Tgif.UseGrayScale X default to true (see the X DEFAULTS section
below).
-color (or -reqcolor)
To print in color, one can use either the -color or the
-reqcolor option. The only difference between the two is that
using -reqcolor has the same effect as setting the
Tgif.PrintUsingRequestedColor X default to true (see the X
DEFAULTS section below).
-adobe (or -adobe=<number>/<number> -adobe=false)
Using this option has the same effect as specifying the
Tgif.UsePsAdobeString X default.
-dontreencode=<string>
Using this option has the same effect as specifying the
Tgif.DontReencode X default.
-producedby=<string>
Using this option has the same effect as specifying the
Tgif.ProducedBy X default.
-page Causes a specified page (specified by <page>) to be printed.
-print_cmd
Using this option has the same effect as specifying the
Tgif.PrintCommand X default.
-one_file_per_page
Causes each page to be printed into a separate file.
-pepsc Preserve EPS Comment. This command line option is obsoleted
since EPS comments are always preserved starting from
tgif-4.0.11.
-nolandpdfspd
This commandline option became obsolete in tgif-4.1.42. It is
interpreted as -nopdfspd.
-pdfspd (or -pdfspd=true -pdfspd=false)
If -pdfspd or -pdfspd=true is specified, "setpagedevice" is
generated in the interim PostScript file when exporting PDF
files or in the final PostScript file when exporting PS files.
If -pdfspd=false is specified, no "setpagedevice" will be
generated in the interim PostScript file when exporting PDF
files or in the final PostScript file when exporting PS files.
This option overrides the Tgif.PdfSetPageDevice X default.
-pssetup
Using these options have the same effect as specifying the
Tgif.AdditionalPSSetup X default.
-j2p6_cmd
Using this option has the same effect as specifying the
Tgif.JpegToPpm6 X default.
-dontcondense
Using this option has the same effect as setting the
Tgif.DontCondensePSFile X default to true.
-condensed
Using this option has the same effect as setting the
Tgif.DontCondensePSFile X default to false.
-bop_hook and -eop_hook
Using these options have the same effect as specifying the
Tgif.PSBopHook and Tgif.PSEpsHook X defaults.
-tmp_file_mode
Using this option have the same effect as specifying the
Tgif.TmpFileMode X defaults.
-o If this option is not specified, the output file (eps, ps, etc.)
goes into the same directory as the input file. If -odir is
specified, the output file goes into the directory specified by
<dir>.
-merge file1 file2 ...
Using this option merges file1.obj, file2.obj, etc. into a
multipage file.
BASIC FUNCTIONALITIES
Primitive objects supported by tgif are rectangles, ovals, rounded-
corner rectangles, arcs, polylines, polygons, open-splines, closed-
splines, text, X11 bitmaps, some specific forms of X11 pixmaps, and
Encapsulated PostScript. (Please note that the splines tgif draw are
not Bezier curves.) Objects can be grouped together to form a grouped
object. A primitive or a grouped object can be made into an icon
object or a symbol object through user commands.
Tgif objects are stored in two types of files. A file with a .obj
extension (referred to as an object file) is a file of objects, and a
file with a .sym extension (referred to as a symbol file) specifies a
‘‘building-block’’ object. A teleport mechanism is provided to travel
(or hyperjump) among the .obj files. A building-block object consists
of the representation part and the definition part (which can be empty)
of the object. Tgif supports the ‘‘bottom-up’’ construction of
hierarchical drawings by providing the capability to ‘‘instantiate’’ a
building-block object in a drawing. Tgif also supports the ‘‘top-
down’’ specification of drawings by allowing the user to make any
object a representation of an un-specified subsystem. Both types of
files are stored in the form of Prolog facts. Prolog code can be
written to interpret the drawings! (It is left to the user to produce
the code. See the PROLOG/C TESTDRIVE section for more details.)
Prolog engines are referred to as drivers in the sections to follow.
(Other types of drivers are also allowed, e.g., written in C.)
Text based attributes can be attached to any non-text object.
Attributes specified in the representation part of a building-block
object are non-detachable when such an object is instantiated. See the
ATTRIBUTES section for details.
Tgif can generate output in a few different formats. By default, the
output is in the PostScript format (color PostScript is supported), and
it is generated into a file named /tmp/Tgifa* (produced by mktemp()
calls) where * is a number; this file is piped to lpr(1). This takes
place when the laser-printer icon is displayed in the Choice Window
(see the TGIF SUBWINDOWS section for the naming of tgif windows). This
output can be redirected to a file with a .ps extension. This takes
place when the PS icon is displayed in the Choice Window. When the PDF
icon is displayed in the Choice Window, the output is generated into a
file with a .pdf extension. By default, tgif calls ps2pdf(1) from the
ghostscript(1) package to convert a PS file to a PDF file. When the
LaTeX (or EPSI) icon is displayed in the Choice Window, the output is
generated into a file with a .eps extension. This file is in the
Encapsulated PostScript (or Encapsulated PostScript Interchange)
format; it can be included in a LaTeX document with the \psfig or the
\epsf construct; this will be discussed later. The only difference
between the EPS and EPSI formats is that an EPSI file contains a
preview bitmap. However, it takes time to generate the preview bitmap.
If the EPS/EPSI file is to be incorporated into some tool that does not
know how to use the preview bitmap, time can be saved by not using the
EPSI format. When the T icon is displayed in the Choice Window, the
output generated into a file with a .txt extension. This is a text
file containing all visible text; it can be fed to a spell checker.
When the x11bm (X11 bitmap) icon is displayed in the Choice Window and
color output is not selected, tgif generates the output with the .xbm
extension; the output is in the X11 bitmap format. However, if the
x11bm icon is displayed in the Choice Window and color output is
selected (through the ^#k keyboard command -- ^ denotes the <Control>
and # denotes the <Meta> or <Alt> key), then tgif generates the output
with the .xpm extension, and the output is in the X11 pixmap format
(the version of this XPM format depends on the settings of the
Tgif.XPmOutputVersion X default). When the GIF icon is displayed in
the Choice Window, the output is generated into a file with a .gif
extension. By default, tgif calls xpmtoppm and ppmtogif from the
netpbm(1) package to convert an XPM file to a GIF file.
X11 bitmap files, certain forms of X11 pixmap files (such as the one
generated by tgif; see the section on X11 PIXMAP for details), GIF
files, and Encapsulated PostScript (EPS) files can be imported into
tgif and be represented as tgif primitive objects. Files in other
raster formats (e.g, JPEG, TIFF, etc.) can also be imported into tgif
if external tools can be used to convert them into X11 pixmap files.
Please see the IMPORT RASTER GRAPHICS section for details.
Tgif drawings are supposed to be printed on letter size paper (8.5in by
11in). Both landscape and portrait page styles are supported by tgif.
Reduction (or magnification) can be controlled by the #% keyboard
command to set the reduction/magnification. If the compiler flag
-DA4PAPER is defined (in Imakefile or Makefile.noimake), then the
output is supposed to be printed on A4 papers (which has approximate
dimensions of 8.25in by 11.7in).
GRAPHICAL OBJECTS
An object in an object (.obj) file can be a primitive object, a grouped
object, or an icon object. A symbol (.sym) file can have any number of
objects allowed in an object file and exactly one symbol object.
(Recall that a symbol file specifies a building-block object.) The
symbol object in a symbol file is the representation part of the
building-block object, and the rest of the symbol file is the
definition part of the building-block object. The symbol object is
highlighted with a dashed outline to distinguish it from the rest of
the objects. When a building-block object is instantiated, the symbol
part of the file is copied into the graphics editor, and it becomes the
icon for the building-block object.
All objects in tgif can be moved, duplicated, deleted, rotated,
flipped, rotated, and sheared. However, in the non-stretchable text
mode, text objects can not be stretched. For an text object, if it has
not been stretched, rotated, or sheared, flipping it horizontally will
cause the text justification to change and flipping it vertically has
no effect.
Tgif supports 32 fill patterns, 32 pen patterns, 7 default line widths,
4 line styles (plain, head arrow, tail arrow, double arrows) for
polylines and open-splines, 9 dash patterns, 3 types of text
justifications, 4 text styles (roman, italic, bold, bold-italic), 11
default text sizes (8, 10, 12, 14, 18, and 24 for the 75dpi fonts and
11, 14, 17, 20, 25, and 34 for the 100dpi fonts), 5 default fonts
(Times, Courier, Helvetica, New-Century-Schoolbook, Symbol), and 11
default colors (magenta, red, green, blue, yellow, pink, cyan, cadet-
blue, white, black, dark-slate-gray). Additional line widths can be
added through the use of Tgif.MaxLineWidths, Tgif.LineWidth#,
Tgif.ArrowWidth#, and Tgif.ArrowHeight# X defaults. Additional text
sizes can be added through the use of Tgif.FontSizes X default.
Additional fonts can be added through the use of Tgif.AdditionalFonts X
default. If the defaults fonts are not available, their replacement
fonts can be specified by Tgif.HasAlternateDefaultFonts and related X
defaults. Additional colors can be added through the use of
Tgif.MaxColors, and Tgif.Color# X defaults. One can also select
AddColor() from the Edit Menu to add a color.
Most commands in tgif can either be activated by a popup menu or by
typing an appropriate non-alphanumeric key. All operations that change
any object can be undone and then redone. Commands such as zoom,
scroll, change fonts while no text objects are selected, etc. are not
undoable. The undo/redo history buffer size can be set using the
Tgif.HistoryDepth X default.
TGIF SUBWINDOWS
The tgif windows are described in this section.
Top Window
Displays the current domain and the name of the file tgif is
looking at. Mouse clicks and key presses have no effect.
Menubar Window
This window is right under the Top Window. Pull-down menus can
be activated from it with any mouse buttons. Key presses have
no effect. If HideMenubar() is selected from the Layout Menu,
this window becomes invisible. If ShowMenubar() is selected
from the Layout Menu (which can be activated from the Canvas
Window below), this window becomes visible.
The View, Text, and Graphics pull-down menus are cascading menus
and can not be pinned (see the Popup Menus subsection below for
a description).
Message Window
This is right under the Menubar Window and to the left. It
displays tgif messages. Clicking the left mouse button in this
window scrolls the messages towards the bottom, clicking the
right mouse button scrolls towards the top, and clicking or
dragging the middle mouse button scrolls to the location in the
message history depending on where the mouse is clicked. If the
<Shift> (or <Control>) key is held down when clicking the
left/right mouse button, it scrolls right/left.
Panel (Choice) Window
This is the window to the right of the Message Window, and it
contains a collection of icons (not to be confused with the tgif
icon objects) reflecting the current state of tgif. In
top/bottom, left/right order, it displays the current drawing
mode, the page style (portrait or landscape), edit (see below),
print/export mode, zoom factor, move and stretch mode
(constrained or unconstrained), radius for rounded-corner
rectangles, text rotation, page number or row/column, page
layout mode (stacked or tiled), horizontal alignment (L C R S
-), vertical alignment (T M B S -), font, text size, vertical
spacing between lines of text within the same text object, text
justification, shape (see below), stretchable or non-stretchable
text mode, dash pattern, line style, polyline, spline, or
interpolated spline, line width, fill pattern, pen pattern,
color, and special (see below). Key presses have no effect in
this window.
In addition to displaying the current state of tgif, the icons
in the Choice Window can also be used to change the current
state. Each icon is associated with a particular state variable
of tgif. Clicking the left mouse button on top of an icon
cycles the state variable associated with the icon forward;
clicking the right mouse button cycles the state variable
backwards. Dragging the middle mouse button on top of an icon
usually generates a popup menu which corresponds to an entry in
the Main Menu for the Canvas Window below. (The ‘‘edit’’,
‘‘shape’’, and ‘‘special’’ icons mentioned above are dummy
icons that allow the ‘‘edit’’, ‘‘shape’’, and ‘‘special’’ menus
to be accessed in the Choice Window. They do not respond to
left and right mouse clicks.) The response to the dragging of
the middle mouse button is different for the zoom, radius, and
vertical spacing icons. Dragging the mouse left or up increases
the zoom or decreases the radius or vertical spacing; dragging
the mouse right or down has the opposite effect.
If there are objects selected in the canvas window, then the
action of the mouse will cause the selected objects to change to
the newly selected mode; note that in this case, the current
choice won’t change if the middle mouse button is used (unless
the Tgif.StickyMenuSelection X default is set to true).
The settings of the horizontal and vertical alignments determine
how objects (or vertices) align with each other when the ^l
keyboard command is issued, how each individual object (or
vertex) aligns with the grids when the ^t keyboard command is
issued, how objects or vertices distribute spatially with
respect to each other when the #l keyboard command is issued,
and how each icon replaces the old icon when the ^#u keyboard
command is issued. The horizontal alignments are left (L),
center (C), right (R), space (S), and ignore (-). The vertical
alignments are top (T), middle (M), bottom (B), space (S), and
ignore (-). In aligning operations, the space (S) and the
ignore (-) settings have the same effect. The space settings
are used to distribute objects such that the gaps between any
two neighboring objects are equal. In vertex mode, any non-
ignore setting will cause the selected vertices to be spaced out
evenly. The best way to understand them is to try them out.
The text vertical spacing determines the vertical distance to
advance when a carriage return is pressed during text editing.
If the user tries to set the value too negative, such that the
next line is exactly at the same position as the current line,
such a setting will not be allowed (this distance depends on the
current font and font size).
Canvas Window
This is the drawing area. The effects of the actions of the
mouse are determined by the current drawing mode. Before
tgif-4.x, dragging the right mouse button will generate the Mode
Menu. This is disabled by default in tgif-4.x, but you can turn
it on using the Tgif.Btn3PopupModeMenu X default.
The drawing modes are (in order, as they appear in the Mode
Menu) select, text, rectangle, corner oval, center oval, edge
circle, polyline (open-spline), polygon (closed-spline), arc
(center first), arc (endpoints first), rounded-corner rectangle,
freehand polyline (open-spline), select vertices, and
rotate/shear. When drawing a rectangle, an oval, or a rounded-
corner rectangle, if the <Shift> key is held down, a square, a
circle, or a rounded-corner square is drawn. Dragging the
middle mouse button will generate the Main Menu.
In the select mode, left mouse button selects, moves, stretches,
and reshapes objects (double-click will ‘‘de-select’’ all
selected objects in vertex mode). When an object is selected,
it is highlighted by little squares (referred as handles here)
at the corners/vertices (using the Tgif.HandleSize X default,
the sizes of the handles can be customized). Dragging one of
the handles stretches/reshapes the selected object. If one
wants to move a selected object, one should not drag the
handles. Instead, one should drag other parts of the object.
For example, if the object is a hollow rectangle (the fill is
NONE and the pen is not NONE), in order to select the rectangle,
one should to click on the outline of the rectangle with the
left mouse button. If one would like to move the rectangle, one
should drag the outline of the rectangle with the left mouse
button. If the object is a filled rectangle (fill is not NONE),
one can click inside the rectangle to select it and drag
anywhere inside the rectangle to move it.
Holding down the <Shift> key and clicking the left mouse on an
object which is not currently selected will add the object to
the list of already selected objects. The same action applied
to an object which is already selected will cause it to be de-
selected. When stretching objects (not reshaping poly-type
objects), holding down the <Shift> key after stretching is
initiated activates proportional stretching (basically, a scale
operation is being performed). In non-stretchable text mode,
text objects can not be stretched or scaled.
Double-clicking or clicking the middle mouse button while the
<Shift> key is held down will activate the teleport (or travel),
the launch, or the execute internal command mechanism. See the
sections on TELEPORT/HYPERJUMP, LAUNCH APPLICATIONS, and
INTERNAL COMMANDS for details. Teleporting has precedence over
launching, which has precedence over executing an internal
command. In the text drawing mode, dragging the middle mouse
button while the <Cntrl> key is held down inside the edit text
area will move the edit text area.
The arrow keys can also be used to move selected objects.
However, if no objects are selected, using the arrow keys will
scroll the drawing area by a small amount, and using the arrow
keys when <Control> key is held down will scroll a screen full.
In the select vertices mode, left mouse button selects and moves
vertices. Only the top-level polyline/open-spline and
polygon/closed-spline objects which are selected when the vertex
mode is activated are eligible for vertex operations. In this
mode, all eligible objects have their vertices highlighted with
squares. When a vertex is selected (using similar mechanism as
selecting objects described above), it is doubly highlighted
with a ’+’ sign. Operations available to these doubly
highlighted vertices are move, delete, align (with each other),
distribute (space them equally), and align to grid. The arrow
keys can also be used to move selected vertices.
Objects can be locked (through the #< keyboard command). Locked
object are shown with gray handles, and they can not be moved,
stretched, flipped, rotated, or sheared. When objects are
grouped, the resulting grouped object will also be locked if any
one of it’s constituents is locked. Locked objects can have
their properties, such as color, font, pen, etc., changed;
furthermore, they can be deleted.
If the current move/stretch mode is of the constrained type
(activated and deactivated by the #@ keyboard command), top-
level polylines will have the following behavior. In a move
operation, if both endpoints of a polyline lie inside the
objects being moved, then the whole polyline is moved;
otherwise, if only one endpoint falls inside the objects being
moved, then that endpoint is moved. The vertex that is the
neighbor of the moved endpoint may also be moved either
horizontally or vertically. If the last line segment is
horizontal or vertical, then the neighbor vertex may be moved so
that the direction of the last line segment is maintained. In a
stretch (not reshape) operation, if an endpoint of a polyline
lies inside the objects being moved, that endpoint will be
moved. The vertex that is the neighbor of the moved endpoint
will also be moved in the same manner as described above.
When the drawing mode is set to text (a vertical-bar cursor is
shown), clicking the left mouse button causes selected text to
go into edit mode. Dragging the left mouse button or clicking
the left mouse button while the <Shift> key is held down
highlights substrings of the text. Double-clicking causes a
word to be selected. In edit mode, key presses are treated as
text strings being inputed, and arrow keys are used to move the
current input position. If a key press is preceded by an <ESC>
key, then the character’s bit 7 is turned on. This allows non-
ASCII (international) characters to be entered. One can use
xfd(1) to see what the corresponding international character is
for an ASCII character. For the Symbol font, symbols such as
the integral, partial derivative, and copyright symbols can all
be found in this range. There are some characters that are
supported by X11 but not by PostScript; these characters are not
accepted by tgif. If the text being edited is an attribute of a
object, <Meta><Tab> will move the cursor to the next visible
attribute and <Shift><Tab> will move the cursor to the previous
visible attribute.
If the drawing mode is set to draw polygons (not closed-splines)
and if the <Shift> key is held down, the rubber-banded polygon
will be self-closing.
The freehand drawing mode can be used to draw polylines and open
splines. All intermediate points are specified by moving the
mouse (as opposed to clicking the mouse buttons as in the
polyline mode). The second endpoint is specified by releasing
the mouse button.
In all drawing modes (other than the text mode), pressing the
<ESC> key cancels the drawing (creation) of the current object.
Middle mouse button always generates the main tgif popup menu.
Holding down the <Shift> key and clicking the right mouse button
will change the drawing mode to select. Key presses with the
<Control> or <Meta> key held down (referred to as non-
alphanumeric key presses since they can also generate control
characters) are treated as commands, and their bindings are
summarized in the next section. Users can also define single
key commands to emulate the functions of the non-alphanumeric
key commands. The SHORTCUTS section will describe the details.
Scrollbars
Clicking the left mouse button in the vertical/horizontal
scrollbar causes the canvas window to scroll down/right by a
small distance; clicking the right mouse button has the reverse
effect. (The scrollbars in the popup windows for selecting file
names and domain names behave similarly.) Clicking with the
<Shift> key held down will scroll a window full. Clicking or
dragging the middle button will cause the page to scroll to the
location which corresponds to the gray area in the scrollbars.
(Tgif insists that the left-top corner of the Canvas Window is
at a distance that is a nonnegative multiple of some internal
units from the left-top corner of the actual page.)
Rulers
They track the mouse location. Mouse clicks and key presses
have no effect. When the page reduction/magnification is set at
100%, the markings in the rulers correspond to centimeters when
the metric grid system is used, and they correspond to inches
when the English grid system is used. When the page
reduction/magnification is not set at 100%, the markings do not
correspond to the above mentioned units any more (this is
considered as a known bug).
Interrupt/Hyperspace Window
This window is right below the Message Window and to the left of
the horizontal ruler. When the Tgif.IntrCheckInterval X default
has a positive value, an interrupt icon is visible when the
Canvas Window is being redrawn. If the user clicks on this
window when the interrupt icon is visible, tgif aborts the
repainting of the objects. If this is done when a file is being
opened (either through Open() or Push()), the drawing of objects
is stopped, but the reading of the file continues (reading of
the file is not aborted).
If tgif is currently in the hyperspace mode (please see the
HYPERSPACE section below for more details), a space ship icon
will be displayed when the interrupt icon is not being
displayed. Clicking any button in this window will switch tgif
in and out of the hyperspace mode.
Page Control Window
The Page Control Window is to the left of the horizontal
scrollbar. This window is empty if the current page mode is set
to the tijled page mode. If the current page mode is set to the
stacked page mode, each page has a tab in tabs subwindow of this
window. Clicking the left mouse button on a tab goes to the
corresponding page. Clicking the middle mouse button brings up
the Page Menu. When there are too many pages in a drawing so
that one can not see the tabs for all the pages, one can use the
icons to the left side of the Page Control Window to scroll the
tabs subwindow. Clicking on the first icon scrolls the tabs
subwindow such that the first tab is visible. Clicking on the
4th icon scrolls the tabs subwindow such that the last tab is
visible. Clicking on the 2nd icon scrolls the tabs subwindow
towards the first tab by one tab and clicking on the 3rd icon
scrolls the tabs subwindow towards the last tab by one tab.
Status Window
This window is below the horizontal scrollbar. It shows what
action will be taken if a mouse button is depressed. When a
menu is pulled down or popped up, this window shows what action
will be taken if a menu item is selected. It also displays
miscellaneous status information. Mouse clicks and key presses
have no effect. If HideStatus() is selected from the Layout
Menu, this window becomes invisible. If ShowStatus() is
selected from the Layout Menu, this window becomes visible.
By default, when this window is displaying mouse button status,
right-handed mouse is assumed. Setting the
Tgif.ReverseMouseStatusButtons X default to true will reverse
the status (as if a left-handed mouse is used).
Popup Menus
When a menu is popped up by a mouse drag, the menu can be pinned
if it is dragged far enough horizontally (the distance is
determined by the setting of the Tgif.MainMenuPinDistance X
default). Clicking the right mouse button in a pinned menu will
cause it to disappear. Dragging the left mouse button in a
pinned menu will reposition the menu (except when the
Tgif.TitledPinnedMenu X default is set to true in which case the
left mouse button performs the same function as the middle mouse
button). Clicking the middle mouse button in it will activate
the item right below the mouse.
NON-ALPHANUMERIC KEY BINDINGS
Most operations that can be performed in tgif can be activated through
non-alphanumeric keys (some operations can only be activated through
popup menus or shortcut keys). This section summarizes the operations
that can be activated by a key stroke with the <Control> and/or the
<Meta> key held down. ‘‘^’’ denotes the <Control> key and ‘‘#’’
denotes the <Meta> key in the following description. (The ‘‘keys.obj’’
file, distributed with tgif, also summarizes the same information, but
it is organized differently. This file can be viewed with tgif, and if
installed properly, it can be found in the same directory as the
‘‘tgificon.obj’’ file, mentioned in the FILES section of this
document.)
^a select all
^b send selected objects to the back
^c copy selected objects into the cut buffer
^d duplicate selected objects
^e save/restore drawing mode
^f send selected objects to the front
^g group selected objects (the grouped object will be brought to the
front)
^i instantiate a building-block object
^k pop back to (or return to) a higher level and close the symbol
file (reverse of ^v)
^l align selected objects according to the current alignment settings
^n open a new un-named object file
^o open an object file to edit
^p print the current page (or export in XBM, XPM, GIF, HTML, PDF,
EPS, or PS formats)
^q quit tgif
^r redraw the page
^s save the current object/symbol file
^t align selected objects to the grid according to the current
alignment
^u ungroup selected objects
^v paste from the cut buffer
^w change the drawing mode to text
^x delete all selected objects
^y change domain
^z escape to driver
^, scroll left
^. scroll right
^- print the current page with a specified command
#a attach selected text objects to a selected non-text object as
attributes
#b escape to driver
#c rotate selected objects counter-clockwise
#d decrement the grid size
#e send a token on a selected polyline
#f flash a selected polyline
#g show/un-show grid points
#h flip the selected objects horizontally
#i increment the grid size
#j hide the attribute names of the selected objects
#k change the drawing mode to select
#l distribute selected objects according to the current alignment
#m move/justify an attribute of a selected object
#n show all the attribute names of the selected objects
#o zoom out
#p import a .obj or a .sym file into the current file
#q change the drawing mode to polyline/open-spline
#r change the drawing mode to rectangle
#s escape to driver
#t detach all the attributes of the selected objects
#u undo
#v flip the selected objects vertically
#w rotate the selected objects clockwise
#x escape to driver
#y escape to driver
#z zoom in
#9 create a user-specified arc (12 o’clock position is 0 degree)
#0 update the selected objects according to current settings
#, scroll up
#. scroll down
#- show all the attributes of the selected objects
#[ align the left sides of objects
#= align the horizontal centers of objects
#] align the right sides of objects
#{ align the top sides of objects
#+ align the vertical centers of objects
#} align the bottom sides of objects
#" make the selected polygon regular (fit the original bounding box)
#% set the percent print reduction (if < 100%) or magnification (if >
100%)
#: go to default zoom
#‘ zoom out all the way so that the whole page is visible
#~ saved selected objects in a new file
#; cut and/or magnify a selected bitmap/pixmap object
#_ abut selected objects horizontally
#| abut selected objects vertically
## break up text objects into single character text objects
#^ scroll to the origin set by SaveOrigin()
#@ toggle between constrained and unconstrained move (stretch) modes
#$ change the drawing mode to select vertices
#& align selected objects to the paper according to the current
alignment
#* redo
#( import an Encapsulated PostScript file
#) scale selected objects by specifying X and Y scaling factors
#< lock the selected objects (can’t be moved, stretched, flipped, or
rotated)
#> unlock the selected objects
^#a add points to the selected poly or spline
^#b change the text style to bold
^#c change to center justified text
^#d delete points from the selected poly or spline
^#e change the drawing mode to rounded-corner rectangles
^#f reverse-video the selected bitmap objects
^#g toggle snapping to the grid points
^#h hide all attributes of the selected objects
^#i make the selected object iconic
^#j make the selected icon object a grouped object
^#k select color or black-and-white output
^#l change to left justified text
^#m make the selected object symbolic
^#n make the selected symbol object a grouped object
^#o change the text style to roman
^#p change the text style to bold-italic
^#q change the drawing mode to polygon/closed-spline
^#r change to right justified text
^#s save the file under a new name
^#t change the text style to italic
^#u update iconic representations of selected objects
^#v change the drawing mode to oval
^#w toggle between poly and spline
^#x cycle among the various output file formats
^#y push into (or edit) the definition part of a building-block (icon)
object
^#z change the drawing mode to arcs
^#. import an X11 bitmap file
^#, import an X11 pixmap file
^#- toggle between English and Metric grid systems
^#= repeat the last Find command
SHORTCUTS
The user can define single character shortcut keys to emulate the
function of the non-alphanumeric key presses to activate commands.
This is done through the use of the Tgif.ShortCuts X default. (Please
note that these shortcut keys are only active when the drawing mode is
not set to the text mode.) The Tgif.ShortCuts consists of a list of
items, each of which specifies the bindings between a key (may be case
sensitive) and a command. The items are separated by blanks, and each
item is interpreted as follows. It consists of two parts, KEY and
COMMAND, which are concatenated together with a ’:’ character. The
format of the KEY part is one of :<Key>x, !<Key>x, or <Key>x (here the
character ’x’ is used as an example; furthermore, the substring <Key>
must be spelled exactly the way it appears here). The first 2 formats
are equivalent, they specify the lower case x; the 3rd format specifies
both the characters ’x’ and ’X’. The COMMAND part is a string that
matches strings in tgif’s popup menus with space characters removed
(exceptions are noted below). This is illustrated by the following
example. In the Edit menu, two of the entries are,
"Delete ^x"
"SelectAll ^a"
which means that <Control>x activates and Delete() command, and
<Control>a activates the SelectAll() command. Therefore, both Delete()
and SelectAll() are valid names for the COMMAND part of a shortcut
specification. To complete the example, the following line can be used
to bind the lower case ’x’ to Delete() and ’a’ or ’A’ to SelectAll():
Tgif.ShortCuts: !<Key>x:Delete() \n\
<Key>a:SelectAll()
For more examples, please see the sample X defaults file,
tgif.Xdefaults, included in the tgif distribution.
Here is a list of exceptions where the COMMAND does not match a command
name in a menu entry. The left entry is a proper COMMAND name, and the
right is a list of strings that’s shown in popup menus which the
COMMAND would correspond to.
CyclePrintFormat() Printer, LaTeXFig, RawPSFile, XBitmap,
TextFile, EPSI, GIF/ISMAP, TiffEPSI, NetList
ToggleBW/ColorPS() BlkWhtPS, ColorPS
ToggleGridSystem() EnglishGrid, MetricGrid
ToggleMapShown() ShowBit/Pixmap, HideBit/Pixmap
ToggleUseGrayScale() UseGrayScale, NoGrayScale
ToggleMoveMode() ConstMove, UnConstMove
ToggleShowMeasurement() ShowMeasurement, HideMeasurement
ToggleLineType() (advances between different curved shapes)
ScrollPageUp() (scroll up a window full)
ScrollPageDown() (scroll down a window full)
ScrollPageLeft() (scroll left a window full)
ScrollPageRight() (scroll right a window full)
FreeHandMode() (change the drawing mode to freehand poly/open-
spline)
CenterAnEndPoint() (move an endpoint of a polyline object to the
center of another object)
ToggleNamedAttrShown(<x>=) (toggle name shown for the attribute <x>)
ToggleSmoothHinge() (convert smooth to hinge and hinge to smooth
points)
ToggleShowMenubar() ShowMenubar, HideMenubar
ToggleShowStatus() ShowStatus, HideStatus
ToggleShowMode() ShowMode, HideMode
ToggleOneMotionSelMove() OneMotionSelMove, ClickSelClickMove
ToggleHyperSpace() GoHyperSpace, LeaveHyperSpace
ImportOtherFileType(<x>) (import using a filter named <x>)
BrowseOtherType(<x>) (browse using a filter named <x>)
PrintSelectedObjs() (print selected objects)
In addition to the above list, the following are also valid COMMAND
names (having the obvious meaning): ScrollLeft(), ScrollRight(),
ScrollUp(), ScrollDown(), SelectMode(), DrawText(), DrawBox(),
DrawOval(), DrawPoly(), DrawPolygon(), DrawRCBox(), DrawArc(), and
SelectVertexMode().
COLORS AND COLORMAPS
In most X environments, only 256 colors can be displayed at once. In
these environment, if an application needs 128 colors and another
application needs a totally different 129 colors, both applications can
not be displayed at once with all the colors they want. X solves the
problem by allowing applications to use their own colormaps (known as
private colormaps). Each private colormap can have at most 256 colors.
There is also a shared colormap available for applications that do not
wish to use private colormaps. The main problem with using private
colormaps is that a user will see the the well-known colormap flashing
phenomenon when he/she switches in and out of applications that use
private colormaps.
Tgif uses the shared colormap initially. When it needs more color than
what is available in the shared colormap, it will use a private
colormap automatically. When tgif no longer needs the extra colors, it
does not automatically revert to using the shared colormap because it
needs to be able to undo operations that use the extra colors. If one
does no longer needs the objects in the undo buffer, one can select
FlushUndoBuffer() from the Edit Menu to flush the undo buffer. At this
point, tgif will attempt to use the shared colormap to avoid the
colormap flashing problem. If one often uses XPM and GIF objects, one
can bind the <Shift>f key to the FlushUndoBuffer() operation by setting
the following X default and uses the <Shift>f key to regain entries in
the colormap when an XPM/GIF object is deleted:
Tgif.ShortCuts: !<Key>F:FlushUndoBuffer()
Even when a private colormap is used, only 256 colors can be used at
once. Therefore, it is not possible to import two 256-colors GIF files
into the same drawing unless the colors are somehow reduced to fit in
the 256-colors colormap. This can be done through dithering which is
described in the IMPORT RASTER GRAPHICS section below.
IMPORT RASTER GRAPHICS
The native raster graphics formats that tgif supports are the XBM and
XPM formats. In order to import color raster graphics file of another
format, tgif can work with external tools that can convert non-XPM
format files to an XPM files. A popular raster format conversion
toolkit is the pbmplus(1) (also known as the netpbm(1)) toolkit. It
can convert a GIF file (e.g., "foo.gif") to an XPM file (e.g.,
"foo.xpm") with the following command (giftopnm is in netpbm; an
earlier version of it called giftoppm exists in pbmplus):
giftopnm foo.gif | ppmtoxpm > foo.xpm
When working with tgif, a GIF file name will be supplied by tgif and
the output of ppmtoxpm will be directly read by tgif through a pipe;
therefore, the previous sequence is replaced by an X default containing
the following form (which happens to be the default setting for the
Tgif.GifToXpm X default):
giftopnm %s | ppmtoxpm
The "%s" is to be replaced by a GIF file name. The above is referred
to as a filter.
To be able to import other types of raster graphics files, one can use
Tgif.MaxImportFilters and Tgif.ImportFilter# X defaults to specify
additional filters. The following example adds a JPEG filter:
Tgif.MaxImportFilters: 1
Tgif.ImportFilter0: \n\
JPEG-222 jpg;jpeg \n\
djpeg -gif -colors 222 %s | \n\
giftopnm | ppmtoxpm
The "JPEG-222" above is the name given to the filter (must not contain
any space character). The "jpg;jpeg" are possible file extensions
separated by semicolons. The rest is the filter specification. The
djpeg(1) program is part of the libjpeg distribution. It can convert a
JPEG file to a GIF file. The above filter also restrict the output to
have a maximum of 222 colors. (The 222 is chosen arbitrarily. Many
XPM files use some ‘‘standard’’ 32 colors, so one may want to leave
room form them.)
To invoke a filter, one can select ImportOtherFile() or BrowseOther()
commands from the File Menu. This will bring up a dialogbox listing
the available filters by their names (e.g., "JPEG-222"). After
selecting a filter, tgif continues in a similar manner as with invoking
ImportXPixmap() or BrowseXPixmap() commands from the File Menu.
The above example is not suitable for the BrowseOther() command because
only 256 colors can be used in a drawing (as explained in the COLORS
AND COLORMAPS section above). In order for BrowseOther() to work well,
one can use dithering to represent an image with a dithered image that
only uses a set of standard colors. The example below uses ppmdither
from the pbmplus/netpbm toolkit:
Tgif.MaxImportFilters: 2
Tgif.ImportFilter0: \n\
JPEG-222 jpg;jpeg \n\
djpeg -gif -colors 222 %s | \n\
giftopnm | ppmtoxpm
Tgif.ImportFilter1: \n\
JPEG-dithered jpg;jpeg \n\
djpeg -gif %s | \n\
giftopnm | ppmdither | ppmtoxpm
If one is working with one JPEG image, one can select ImportOtherFile()
then select "JPEG-222" to get as many as 222 colors. If one is
browsing for JPEG images, one can select BrowseOther() then select
"JPEG-dithered".
OBJECT NAMES
If an object contains an attribute (please see the ATTRIBUTES sections
below for details) whose name is the string "name" (case-sensitive),
the value part of the attribute is the name of the object. Subobject
of a composite object can be named using a path, e.g.,
<t>!<s1>!<s2>!..., where <t> is the name of a top-level object which
directly contains <s1> which directly contains <s2>, etc. !* refers to
the currently selected object (if more than one object is selected, the
top-most object in the stacking order is used). !*<s1>!<s2> names the
<s2> subject of the <s1> subject of the currently selected object.
The following is not fully supported, yet (only the #<page> form is
supported at this time). Every object in a tgif file can be uniquely
named using the notation #<page>!<path>, where <page> can be a string
that specifies the name of a page or #<number> which specifies a page
number. The <path> is described in the previous paragraph. If an
object o1 is referenced by another object o2 within the same file (no
file name or URL is specified before #) and <page> is omitted, then o1
must be on the same page as o2. If a file name or URL is specified
before # and <page> is omitted, then o1 must be on the first page.
ATTRIBUTES
Attributes are text strings of the form name=value or value which are
attached to either the current drawing or any non-text objects. An
attribute attached to the current drawing is called a file attribute;
otherwise, it is a regular attribute. Attributes can be attached and
detached from these objects except in the following case:
Attributes appearing in the symbol object in a building-block
object file can not be detached when the building-block object
is instantiated. These attributes are considered to be the
‘‘inherited’’ attributes of the icon object. (If it is really
necessary to detach inherited attributes of an icon object, the
icon object can be ‘‘de-iconified’’ by using UnMakeIconic() in
the Special Menu to make it a grouped object; then the
attributes can be detached.)
A file attribute is always invisible. For a regular attribute, the
user has control over which part of the attribute is displayed. An
entire attribute can be made invisible, or only its name can be made
invisible (accomplished through the commands under the special menu,
such as #m, #n, #j, #-, and ^#h).
TELEPORT/HYPERJUMP
Tgif provides the mechanism to travel between .obj and .sym files. If
the middle mouse button is clicked on an object with the <Shift> key
held down (or double-clicking such an object), tgif looks for an
attribute named warp_to (by default) or href of that object. The only
difference between warp_to and href is that ".obj" is automatically
appended to the value of a warp_to attribute while the value of a href
attribute is taken as is. (Please note that warp_to is obsolete now.
It is still supported for the sake of compatibility.) If such an
attribute is found, the value part of the attribute is interpreted as
the name of a .obj file to travel to. (If tgif is in the hyperspace
mode, then clicking the left mouse button has the same effect.) If
there are multiple href attributes on the object, but are in different
colors, tgif will use the one that has the same color as the current
color appearing in the Choice Window. If the current file is modified,
the user is prompted to save the file before traveling to the next
file. If the value part of the href attribute starts with the ’/’
character, the value is treated as an absolute file name; otherwise, it
is treated as a relative file name.
HYPERSPACE
Tgif provides a hyperspace mode to facilitate traveling between .obj
files. The hyperspace mode is entered when GoHyperSpace() is selected
from the Navigate Menu. In hyperspace mode, the little window below
the Message Window will show a little space ship. The hyperspace mode
is also automatically entered when a remote URL is opened (unless the
Tgif.AutoHyperSpaceOnRemote X default is set to false).
In the hyperspace mode, certain objects are considered hot-links. When
the cursor is placed on top of these object, it will change from a
pointer to a hand to indicate that clicking on the left mouse button
will invoke some actions. An object is a hot-link if it contains an
attribute described in either the TELEPORT/HYPERJUMP, LAUNCH
APPLICATIONS, or INTERNAL COMMANDS section.
The hyperspace mode is exited when the drawing mode is changed or the
LeaveHyperSpace() is selected from the Navigate Menu.
LAUNCH APPLICATIONS
Tgif provides the mechanism to launch applications. If the middle
mouse button is clicked on an object with the <Shift> key held down (or
double-clicking such an object), tgif looks for an attribute named
launch (by default) of that object. If such an attribute is found, the
value part of the attribute is interpreted as a sh(1) command to
execute. Same color rule applies as described in the
TELEPORT/HYPERJUMP section above. If the command ends with the ’&’
character, tgif forks itself (what actual happens depends on whether
the _BACKGROUND_DONT_FORK compiler flag is defined or not at compile
time) and the command is executed by the child process; otherwise,
popen() is used to execute the command (in this case, if the command
hangs, there is no way provided to terminate the command, and tgif will
not be able to recover from it). Within the command, values of other
attributes of the same object can be used. The syntax is: $(attr),
where attr is the name of another attribute.
For example, if one wants to perform a man(1) function, one can draw a
box; enter a line of text "title=tgif"; enter another line of text
"launch=xterm -rw -e man $(title)"; select all three objects using ^a
keyboard command; attach the text strings to the box using #a keyboard
command; and launch the man(1) command by clicking the middle mouse
button on the box (or the text strings) withe the <Shift> key held
down. If one wants to be more fancy, the box can be replaced by an X11
pixmap object; the ’launch’ attribute can be made invisible; and the
’title’ attribute can be center justified and with its name hidden
using the #m keyboard command.
By default, launching of an application is by default disabled in the
hyperspace mode for security considerations (this can be overridden by
the Tgif.AllowLaunchInHyperSpace X default setting). If a lunch
command is encountered in the hyperspace mode, the command is displayed
and the user is prompted to see if he/she wants to execute the command.
INTERNAL COMMANDS
Tgif provides the mechanism to execute internal commands. If the
middle mouse button is clicked on an object with the <Shift> key held
down (or double-clicking such an object), tgif looks for an attribute
named exec (by default) of that object. If such an attribute is found,
the value part of the attribute is interpreted as a list of internal
commands (separated by semicolor) to execute. Same color rule applies
as described in the TELEPORT/HYPERJUMP section above. A command
usually takes the form:
<cmd_name> ( <arg1>, <arg2>, ..., <argN> )
An argument of a command can be a string argument or a numeric
argument. A string argument must be enclosed in double-quotes. A
numeric argument can be a numerical value or a string of the form
"$(x)", where x is the name of another attribute (this form is referred
as the substitution form). A string argument can also contain
substitution form. Please note that only one-level substitution are
performed (the collection of internal commands should be viewed as a
simple scripting language and not a declaration language).
When an attribute is referenced in an internal command, the attribute
name can be in the form, <obj_name>.<string>, where <obj_name> must be
in the form specified in the OBJECT NAMES section above and <string>
contains only alphanumeric characters and the underscore (’_’)
character. If the first 2 characters of an attribute name is "!.", the
rest of the attribute name names a file attribute. If the first 2
characters of an attribute name is "!*", the rest of the attribute name
names an attribute of the currently selected object (if more than one
object is selected, the top-most object in the stacking order is used).
Please note that lines that begin with "//" are treated as comments.
The following internal commands are supported:
launch(<attr_name>)
The value of the attribute specified by <attr_name> is
interpreted as a sh(1) command to execute. Please see the
LAUNCH APPLICATIONS section above for more details.
exec(<attr_name>)
The value of the attribute specified by <attr_name> is
interpreted as an internal command to execute. This is similar
to a subroutine call. Please note that the internal command is
executed in the context of the top-level which contain the
attribute.
mktemp(<str>,<attr_name>)
This command makes a unique file name. The <str> argument is a
template string, e.g., "/tmp/TgifXXXXXX", and it requires at
least two "/" in it. The result of mktemp() is stored as the
value of the attribute specified by <attr_name>. Please see the
man pages of the C library function on mktemp(3C) for more
details. (If tgif is compiled with the -D_USE_TMPFILE compiler
option, then tempnam(3S) is used instead.)
create_file_using_simple_template(<template>,<output>,<str>,<attr_name>)
The file specified by <template> is scanned for a line that
matches <str>. When such a line is found, that line is replaced
by the value of the attribute specified by <attr_name>. The
result is put into the file specified as <output>.
update_eps_child(<eps_file_name>)
This only works if the object being executed is a composite
object. If the object has a component which is an imported EPS
(Encapsulated PostScript) object, it is replaced by the EPS file
specified by <eps_file_name>. If the object does not contain an
EPS subobject, an EPS subobject is created.
update_xbm_child(<xbm_file_name>)
This only works if the object being executed is a composite
object. If the object has a component which is an imported XBM
(X11 bitmap) object, it is replaced by the XBM file specified by
<xbm_file_name>. If the object does not contain an XBM
subobject, an XBM subobject is created.
update_xpm_child(<xpm_file_name>)
This only works if the object being executed is a composite
object. If the object has a component which is an imported XPM
(X11 pixmap) object, it is replaced by the XPM file specified by
<xpm_file_name>. If the object does not contain an XPM
subobject, an XPM subobject is created.
delete_eps_child(<obj_name>)
This only works if the object named <obj_name> is a composite
object. If the object has a component which is an EPS
(Encapsulated PostScript) object, it is deleted. If the object
does not contain an EPS subobject, no operation is performed.
delete_xbm_child(<obj_name>)
This only works if the object named <obj_name> is a composite
object. If the object has a component which is an XPM (X11
pixmap) object, it is deleted. If the object does not contain
an XPM subobject, no operation is performed.
delete_xpm_child(<obj_name>)
This only works if the object named <obj_name> is a composite
object. If the object has a component which is an XBM (X11
bitmap) object, it is deleted. If the object does not contain
an XBM subobject, no operation is performed.
flip_deck(<times>,<frames_per_second>,<style>)
This only works if the object being executed is a composite
object and all subobjects of the composite object are X11 bitmap
or X11 pixmap objects and have identical positions and sizes.
The <times> argument specifies the number of times the deck is
flipped. It can be a number or the string "infinite". The
<frames_per_second> argument must be a number between 1 and 60.
The <style> argument can be either "linear" or "ping_pong".
When this command is being executed, any mouse button click or
key click aborts command execution.
read_file_into_attr(<file_name>,<attr_name>)
This command reads a file into an attribute. The <file_name>
argument names a file, e.g., "/tmp/foo". The content of the
file is read as the value of the attribute specified by
<attr_name>. If the file can not be opened for read, the
attribute’s value is set to an empty string.
write_attr_into_file(<attr_name>,<file_name>)
This command writes the value of an attribute into a file. The
<file_name> argument names a file, e.g., "/tmp/foo". The value
of the attribute specified by <attr_name> is written into
<file_name>.
append_attr_into_file(<attr_name>,<file_name>)
This command appends the value of an attribute into a file. The
<file_name> argument names a file, e.g., "/tmp/foo". The value
of the attribute specified by <attr_name> is appended into
<file_name>.
select_obj_by_name(<obj_name>)
This command silently (no highlighting handles) selects an
object named <obj_name>. Please see the OBJECT NAMES section
above for the specification of object names.
select_top_obj()
This command silently (no highlighting handles) selects the top
object. This command fails if there is no object in the current
page.
delete_selected_obj()
This command deletes all selected objects. This command fails
if no object is selected.
unselect_all_obj()
This command de-selects all selected objects. If the
select_obj_by_name() command is used, this command must be used
eventually.
move_selected_obj_relative(<dx>,<dy>)
This command moves the selected object by <dx> absolute units in
the x direction and <dy> absolute units in the y direction.
repeat(<cmd_attr_name>,<times>)
This command executes the internal command in the
<cmd_attr_name> attribute <times> times.
hyperjump(<attr_name>)
This command teleports to the file name or URL name found in the
<attr_name> attribute.
make_cgi_query(<dest_attr_name>,<url_name>,<list_attr_name>)
This command constructs an URL in the Common Gateway Interface
(CGI) format in the <dest_attr_name> attribute. <url_name>
names the CGI server script and <list_attr_name> names an
attribute whose value are comma-separated attribute names. For
example, if an object has the following attributes:
attr_list=last_name,first_name
last_name=Cheng
first_name=Bill
final_url=
exec=make_cgi_query(final_url,
http://bourbon.usc.edu:8001/cgi-bin/test-cgi,
attr_list)
Executing this object will construct the following string in
final_url:
http://bourbon.usc.edu:8001/cgi-bin/test-
cgi?last_name=Cheng&first_name=Bill
An subsequent hyperjump(final_url) command can be invoked to
execute the corresponding "test-cgi" CGI server script with the
last_name and first_name arguments.
For a detailed description of CGI scripts, the reader is
referred to [2].
wait_click(<cursor_name>,<grab>,<attr_name>)
This command displays the <cursor_name> cursor and waits for the
user to click a mouse button. If <cursor_name> is the string
NULL (case-sensitive), the cursor will not change. If <Btn1> is
clicked, the command terminates and 1 is placed in <attr_name>.
If <Btn2> is clicked, 2 is placed in <attr_name>, etc. If
<grab> set to TRUE (case-sensitive), then the mouse is grabbed
by tgif. Valid <cursor_name> can be found in <X11/cursorfont.h>
(without the XC_ prefix).
sleep(<cursor_name>,<ms_interval>)
This command displays the <cursor_name> cursor and waits for
<ms_interval> milliseconds to elapse. If <cursor_name> is the
string NULL (case-sensitive), the cursor will not change. This
command can be interrupted (and aborted) by any mouse clicks or
key strokes. Valid <cursor_name> can be found in
<X11/cursorfont.h> (without the XC_ prefix).
begin_animate()
This command is used to start an animation sequence (using
double-buffering). Please note that, by default, tgif prepares
for undo/redo. For a long animation sequence, the undo/redo
records may take up a lot of memory. In this case,
disable_undo() (described below) should be used before this
command.
end_animate()
This command is used to terminate an animation sequence.
set_redraw(<true_or_false>)
This command is used to temporarily disable redraw if
<true_or_false> is FALSE (case-sensitive) when tgif is in the
animation mode (turned on by begin_animate()). If a
shuffle_obj_to_top() or a shuffle_obj_to_bottom() command is
used before a move command, set_redraw(FALSE) and
set_redraw(TRUE) should be used immediately before and
immediately after, respectively, the shuffle_obj_to_top() or
shuffle_obj_to_bottom() command.
set_selected_obj_color(<color_str>)
This command changes the color of the selected object to
<color_str>. If no object is selected, the current color will
be changed to <color_str>.
set_selected_obj_fill(<fill_index>)
This command changes the fill pattern of the selected object to
<fill_index>, which must be between 0 (for no fill) and 31. If
no object is selected, the current fill pattern will be changed
to <fill_index>.
set_selected_obj_pen(<pen_index>)
This command changes the pen of the selected object to
<pen_index>, which must be between 0 (for no pen) and 31. If no
object is selected, the current pen will be changed to
<pen_index>.
set_selected_obj_line_width(<width>,<arrow_w>,<arrow_h>)
This command changes the line width, arrow width, and arrow
height of the selected object to <width>, <arrow_w>, and
<arrow_h>, respectively. If <arrow_w> or <arrow_h> is -1, the
arrow width or arrow height, respectively, is not changed. If
no object is selected, the current line width will be changed to
the one that matches <width>, <arrow_w>, and <arrow_h> most
closely. (Closeness is measured such that the difference is
width is counted 10 times the diffference in arrow width and
arrow height.)
set_selected_obj_spline(<spline_type>)
This command changes the spline type of the selected object to
<spline_type>, which can be straight, spline, or interpolated.
If no object is selected, the current spline type will be
changed to <spline_type>.
set_selected_obj_arrow(<arrow_type>)
This command changes the arrow type of the selected object to
<arrow_type>, which can be none, right, left, or double. If no
object is selected, the current arrow type will be changed to
<arrow_type>.
set_selected_obj_dash(<dash_index>)
This command changes the dash type of the selected object to
<dash_index>, which must be between 0 (solid) and 8. If no
object is selected, the current dash type will be changed to
<dash_index>.
set_selected_obj_trans_pat(<trans_pat>)
This command changes selected object to have opaque pattern if
<trans_pat> is 0; it changes selected object to have transparent
pattern if <trans_pat> is any other numeric value. If no object
is selected, the current fill and pen pattern will be opaque if
<trans_pat> is 0 and will be transparent if <trans_pat> is any
other numeric value.
set_selected_obj_rcb_radius(<rcb_radius>)
This command changes the rcbox radius of the selected object to
<rcb_radius>, which must be greater or equal to 4. If no object
is selected, the current rcbox radius will be changed to
<rcb_radius>.
set_selected_text_vspace(<vspace>)
This command changes the text vspace of the selected object to
<vspace>. If no object is selected, the current text vspace
will be changed to <vspace>.
set_selected_text_just(<justification>)
This command changes the text justification of the selected
object to <justification>, which can be left, center, or right.
If no object is selected, the current text justification will be
changed to <justification>.
set_selected_text_font(<ps_font_name>)
This command changes the font and text style of the selected
object to match <ps_font_name>. Examples of valid
<ps_font_name> can be found when one selects CopyProperties()
from the Properties Menu. The item listed under text font is a
valid <ps_font_name>. If no object is selected, the current
font and text style will be changed to match <ps_font_name>.
This command fails if no match can be found,
set_selected_text_style(<textstyle>)
This command changes the text style of the selected object to
<textstyle>, which can be r (for roman), b (for bold), i (for
italic), or bi (for bold-italic). If no object is selected, the
current text style will be changed to <textstyle>.
set_selected_text_size(<size>)
This command changes the text size of the selected object to
<size>. If <size> ends with the substring "pt", then point size
is used instead of text size. If such as size cannot be found
in the Size Menu, the closest size in the Size Menu will be
used. If no object is selected, the current text size will be
changed to <size> or the closest size.
set_selected_text_underline(<underline>)
This command removes text underline from the selected object if
<underline> is 0; it underlines text in the selected object if
<underline> is any other numeric value. If no object is
selected, the current text underline will be changed
accordingly.
inc(<attr_name>,<expr>)
This command increment <attr_name> by the expression <expr>.
Both the value of <attr_name> and <expr> must be integers.
Please see the ARITHMETIC EXPRESSIONS section below for details
about expressions.
dec(<attr_name>,<expr>)
This command decrement <attr_name> by <expr>. Both the value of
<attr_name> and <expr> must be integers.
shuffle_obj_to_top(<obj_name>)
This command move <obj_name> to the top. If <obj_name> is a
subobject, it is raised to the top, relative to its siblings.
This command is useful in animation where a selected frame
(subobject) can be raised to the top.
shuffle_obj_to_bottom(<obj_name>)
This command move <obj_name> to the bottom. If <obj_name> is a
subobject, it is raised to the bottom, relative to its siblings.
This command is useful in animation where a selected frame
(subobject) can be raised to the bottom.
disable_undo()
This command cleans up the undo/redo records and disable undo
(and stop recording undo/redo information). The original
history depth is saved away. This command should be used before
a long animation sequence.
enable_undo()
This command restores the history depth saved away by the
disable_undo() command and enables undo/redo. This command
should be eventually used after disable_undo() is called.
get_drawing_area(<ltx_attr>,<lty_attr>,<rbx_attr>,<rby_attr>)
This command stores the absolute coordinate of the current
drawing area in the specified attributes. <ltx_attr> stores the
left-top X coordinate, <lty_attr> stores the left-top Y
coordinate, <rbx_attr> stores the right-bottom X coordinate, and
<rby_attr> stores the right-bottom Y coordinate.
get_selected_obj_bbox(<ltx_attr>,<lty_attr>,<rbx_attr>,<rby_attr>)
This command stores the absolute coordinate of the bounding box
of the selected object in the specified attributes. <ltx_attr>
stores the left-top X coordinate, <lty_attr> stores the left-top
Y coordinate, <rbx_attr> stores the right-bottom X coordinate,
and <rby_attr> stores the right-bottom Y coordinate. The
bounding box is computed assuming that all lines are of width 0.
get_named_obj_bbox(<obj_name>,<ltx_attr>,<lty_attr>,<rbx_attr>,<rby_attr>)
This command stores the absolute coordinate of the bounding box
of the object named <obj_name> in the specified attributes.
<ltx_attr> stores the left-top X coordinate, <lty_attr> stores
the left-top Y coordinate, <rbx_attr> stores the right-bottom X
coordinate, and <rby_attr> stores the right-bottom Y coordinate.
The bounding box is computed assuming that all lines are of
width 0.
move_selected_obj_absolute(<ltx>,<lty>)
This command moves left-top corner of the selected object to
(<ltx>,<lty>).
assign(<attr_name>,<expr>)
This command assigns <expr> to the attribute specified by
<attr_name>. <expr> must be evaluated to a numeric value.
strcpy(<attr_name>,<string>)
This command copies <string> into the attribute specified by
<attr_name>.
copy_string_to_cut_buffer(<string>)
This command copies <string> into the cut buffer.
strcat(<attr_name>,<string>)
This command appends <string> to the attribute specified by
<attr_name>.
while(<expr>,<cmd_attr_name>)
This command keeps executing the internal command in
<cmd_attr_name> until <expr> evaluates to 0.
if(<expr>,<then_cmd_attr_name>,<else_cmd_attr_name>)
If <expr> evaluates to 0, the internal command in
<else_cmd_attr_name> is executed; otherwise, the internal
command in <then_cmd_attr_name> is executed.
<then_cmd_attr_name> or <else_cmd_attr_name> can be the string
NULL (case-sensitive); in this case, no corresponding action is
taken.
get_current_file(<attr_name>)
This command stores the full path name of the current file in
<attr_name>.
get_current_export_file(<attr_name>)
This command stores the full path name of the output
(print/export) file in <attr_name>.
get_current_dir(<attr_name>)
This command stores the current directory in <attr_name>.
getenv(<attr_name>,<env_var_name>)
This command stores the environment variable named
<env_var_name> in <attr_name>.
strlen(<attr_name>,<string>)
This command assigns the number of characters in <string> to
<attr_name>.
substr(<attr_name>,<string>,<start_index>,<length>)
This command copies <length> characters, starting from the
character index <start_index>, of <string> into <attr_name>.
The <start_index> is zero-based.
strstr(<attr_name>,<string>,<sub_string>)
This command finds the first occurrence of <sub_string> in
<string> and copies <sub_string> and the rest of the string into
<attr_name>.
strrstr(<attr_name>,<string>,<sub_string>)
This command finds the last occurrence of <sub_string> in
<string> and copies <sub_string> and the rest of the string into
<attr_name>.
unmake_selected_obj_iconic()
This command has the same effect as selecting UnMakeIconic()
from the Special Menu except that at least one object must be
selected already.
hyperjump_then_exec(<attr_name>,<attr_name_to_exec>)
This command teleports to the file name or URL name found in the
<attr_name> attribute then executes the internal command
specified by the <attr_name_to_exec> attribute in the new file.
show_attr(<attr_name>)
This command makes the <attr_name> attribute visible.
hide_attr(<attr_name>)
This command makes the <attr_name> attribute invisible.
show_attr_name(<attr_name>)
This command makes the name part of the <attr_name> attribute
visible.
hide_attr_name(<attr_name>)
This command makes the name part of the <attr_name> attribute
invisible.
show_value(<attr_value>)
This command makes the attribute whose name is empty and whose
value is <attr_value> visible.
hide_value(<attr_value>)
This command makes the attribute whose name is empty and whose
value is <attr_value> invisible.
get_attr_bbox(<ltx_attr>,<lty_attr>,<rbx_attr>,<rby_attr>,<attr_name>)
This command stores the absolute coordinate of the bounding box
of the <attr_name> attribute in the specified attributes.
<ltx_attr> stores the left-top X coordinate, <lty_attr> stores
the left-top Y coordinate, <rbx_attr> stores the right-bottom X
coordinate, and <rby_attr> stores the right-bottom Y coordinate.
The bounding box is computed assuming that all lines are of
width 0.
size_selected_obj_absolute(<abs_w>,<abs_h>)
This command stretches the right-bottom corner of the selected
object so that its width becomes <abs_w> and height becomes
<abs_h>.
size_named_obj_absolute(<obj_name>,<abs_w>,<abs_h>)
This command stretches the right-bottom corner of the object
named <obj_name> so that its width becomes <abs_w> and height
becomes <abs_h>.
message_box(<attr_name>,<msg>,<title>,<style>)
This command displays a messagebox with <title> as the title and
<msg> as the message. <style> can be the string "info", "ync",
"yn", or "stop". The messagebox display an OK button for the
"info" or "stop" styles, YES/NO/CANCEL buttons for the "ync"
style, YES/NO buttons for the "yn" style. When the user click a
button in the messagebox, the name of the button will be placed
in <attr_name>. If the user cancels the messagebox by typing
the <ESC> key, <attr_name> will be set to the string "CANCEL".
If <attr_name> is the string NULL (case-sensitive), the
information about which button is clicked is not written
anywhere. If <title> is the string NULL, Tgif will be the title
for the messagebox.
get_user_input(<attr_name>,<msg1>,<msg2>)
This command displays a dialogbox with <msg1> in the first line
and <msg2> in the second line. If <msg2> is the string
"USE_CURRENT_DIR", the second line displays the current
directory. The user can type in a line in the dialogbox which
get placed in <attr_name>. If the user cancels the dialog by
typing the <ESC> key, <attr_name> will be set to the empty
string.
add_attr_to_selected_obj(<attr_name>,<attr_value>,<abs_x>,<abs_y>)
This command adds <attr_name>=<attr_value> to a selected object
and place the attribute at (<abs_x>,<abs_y>). If <attr_name> is
the string NULL (case-sensitive), the attribute’s name will be
the empty string. If <abs_x> and <abs_y> are both NULL (case-
sensitive), the attribute will be placed below the lower left
corner or the object. If <attr_name> starts with "!.", a file
attribute will be added.
delete_attr_from_selected_obj(<attr_name>)
This command deletes an attribute named <attr_name> from a
selected object. If <attr_name> starts with "!.", a file
attribute will be deleted.
user_end_an_edge(<attr_name>,<abs_x>,<abs_y>)
This command starts a polyline/open-spline at (<abs_x>,<abs_y>),
switches the drawing mode to the draw polyline/open-spline, and
lets the user finishes the polyline/open-spline. If the
endpoint falls in an object having an attribute type=port, that
object’s name will be placed in <attr_name>, if <attr_name> is
not the string NULL (case-sensitive).
user_draw_an_edge(<start_attr_name>,<end_attr_name>)
This command switches the drawing mode to the draw
polyline/open-spline and lets the user draw a polyline/open-
spline. If the first endpoint falls in an object having an
attribute type=port, that object’s name will be placed in
<start_attr_name>, if <attr_name> is not the string NULL (case-
sensitive). If the last endpoint falls in an object having an
attribute type=port, that object’s name will be placed in
<end_attr_name>, if <attr_name> is not the string NULL (case-
sensitive).
get_a_poly_vertex_absolute(<x_attr_name>,<y_attr_name>,<obj_name>,<index>)
This command stores the absolute coordinate of the <index>th
vertex of <obj_name> in attributes specified by <x_attr_name>
and <y_attr_name>. The object specified by <obj_name> must be
either a poly/open-spline or a polygon/closed-spline object.
move_a_poly_vertex_absolute(<obj_name>,<index>,<abs_x>,<abs_y>)
This command moves the <index>th vertex of <obj_name> to the
absolute coordinate (<abs_x>,<abs_y>). The object specified by
<obj_name> must be either a poly/open-spline or a
polygon/closed-spline object.
post_attr_and_get_cgi_result(<url_attr>,<query_attr>,<result_attr>)
This command makes an HTTP request using the POST method.
<url_attr> names the attribute that contains the URL (which
usually names a CGI server script). <query_attr> names the
attribute whose value is the data to be posted. <result_attr>
names the attribute for receiving the results. For example, if
an object has the following attributes:
url=http://bourbon.usc.edu:8001/cgi-bin/echo-post
query=Hello World!
result=
exec=post_attr_and_get_cgi_result(url,query,result)
Executing this object will post "Hello World!" to the specified
CGI script. In this case, the result of executing the script
just echoes "Hello World!" back (along with some other
bookkeeping information).
navigate_back()
This command performs the same operation as if the
NavigateBack() is selected from the Navigate Menu.
stop() This command stops the execution of all internal commands.
sqrt(<attr_name>,<expr>)
This command assigns the square-root of <expr> to <attr_name>.
<expr> must be evaluated to a non-negative numeric value.
random(<attr_name>)
This command assigns a random integer to <attr_name> using the C
library function rand(). 0 is used as a seed for the random
number generator.
srand48(<use_cur_time_as_seed>)
This command seeds the random generator used by the C library
function drand48(). If <use_cur_time_as_seed> is 0, 0 will be
used as a seed. Otherwise, the current time will be used as a
seed.
drand48(<attr_name>)
This command assigns a floating pointer number between 0.0 and
1.0 to <attr_name> using the C library function drand48().
round(<attr_name>,<expr>)
This command assigns the round of <expr> to <attr_name>.
redraw_obj(<obj_name>)
This command redraws the area occupied by <obj_name>.
redraw_drawing_area()
This command redraws the whole drawing area (visible through the
Canvas Window).
itox(<attr_name>,<digits>,<expr>)
This command assigns <attr_name> to be the hex value of <expr>.
<digits> (which must be between 1 and 8, inclusive) is the final
width of the hex value (zeroes are added on the left).
for_i(<attr_name>,<min_val>,<max_val>,<increment>,<cmd_attr_name>)
This command is the same as the following sequence of commands:
assign(<attr_name>,<min_val>);
while($(<attr_name>) <= <max_val>,loop)
where loop has the following value:
exec(<cmd_attr_name>);
inc(<attr_name>,<increment>)
Please note that <min_val>, <max_val>, and <increment> are only
evaluated once prior the execution of this command.
set_file_not_modified()
This command sets the file modified flag to false.
new_id(<attr_name>)
This command generates an object ID, which is (unique in the
current drawing, and stores it in <attr_name>.
rotate_selected_obj(<angle>)
This command rotates the selected object by <angle> degrees.
Positive angle is clockwise.
call_simple_shortcut(<shortcut_name>)
This command calls a shortcut named <shortcut_name> which takes
no arguments. Please see the SHORTCUTS section for a
description of shortcuts.
call_one_arg_shortcut(<shortcut_name>,<arg>)
This command calls a shortcut named <shortcut_name> that takes
one argument and pass <arg> to it. Please see the SHORTCUTS
section for a description of shortcuts.
substitute_attr(<attr_name>,<src_attr_name>,<replace_attr_name>,<pattern_str>)
This command replaces occurrences of <pattern_str> in the value
part of the attribute specified by <src_attr_name> by the value
of the attribute specified by <replace_attr_name> and write the
result into the attribute specified by <attr_name>.
get_file_size(<attr_name>,<file_name>)
This command puts the size of file specified by <file_name> in
the attribute specified by <attr_name>.
is_file(<attr_name>,<file_name>)
This command puts a "1" in the attribute specified by
<attr_name> if the file specified by <file_name> exists. It
puts a "0" otherwise.
index(<attr_name>,<string>,<sub_string>)
This command finds the first occurrence of <sub_string> in
<string> and copies the zero-based index into <attr_name>.
rindex(<attr_name>,<string>,<sub_string>)
This command finds the last occurrence of <sub_string> in
<string> and copies the zero-based index into <attr_name>.
get_number_of_lines_in_attr(<result_attr>,<attr_name>)
This command counts the number of lines in the attribute
specified by <attr_name> and writes the count into
<result_attr>.
get_line_in_attr(<result_attr>,<attr_name>,<line_number>)
This command copies the nth line of the attribute specified by
<attr_name> into <result_attr>, where n is a zero-based index
specified by <line_number>.
trim(<attr_name>)
This command removes leading and trailing blank characters from
the attribute specified by <attr_name>.
is_attr(<result_attr>,<attr_name>)
This command writes a "1" into <result_attr> if the attribute
specified by <attr_name> exists. It writes a "0" into
<result_attr> otherwise.
find_obj_names(<result_attr>,<obj_name>,<attr_name_value>)
This command finds all objects that are direct sub-objects of
the object specified by <obj_name> and writes their names into
<result_attr>. If <obj_name> is an empty string, all top-level
objects are scanned.
<attr_name_value> specifies a filter for the objects. If
<attr_name_value> is the empty string, all qualifying objects
are selected. If <attr_name_value> is of the form "<string>=*",
an object is selected if it has an attribute named <string>. If
<attr_name_value> is of the form "<string>=<value>", an object
is selected if it has an attribute named <string> and its
corresponding value is <value>. If <attr_name_value> does not
contain the ’=’ character, an object is selected if it has an
attribute whose name is empty and the corresponding value is
identical to <attr_name_value>.
If n objects are matched, the attribute specified by
<result_attr> is updated with n+1 lines. The value of the
zeroth line becomes n and the object names becomes lines 1
through n of <result_attr>. The get_line_in_attr() internal
command can be used to retrieve the object names.
tokenize(<result_attr>,<string>,<separator>)
This command breaks <string> into tokens which are separated by
the <separator> character and writes the tokens (in the same
fashion as in the find_obj_names command above) into
<result_attr>. <separator> must be a string of length of 1 and
it must not be the space character, the single-quote character,
or the double-quote character. If a token contains the
separator character, the token can be surrounded by a pair of
single-quotes or double-quotes which are automatically removed
when this command is executed.
If n tokens are found, the attribute specified by <result_attr>
is updated with n+1 lines. The value of the zeroth line becomes
n and the tokens becomes lines 1 through n of <result_attr>.
The get_line_in_attr() internal command can be used to retrieve
the tokens.
move_attr_relative(<attr_name>,<dx>,<dy>)
This command moves the attribute whose name is <attr_name> by
<dx> absolute units in the x direction and <dy> absolute units
in the y direction.
get_number_of_vertices(<result_attr>,<obj_name>)
This command copies the number of vertices of the object
specified by <obj_name> into <result_attr>. The specified
object must be a polyline (open-spline) or a polygon (closed-
spline).
is_obj_transformed(<result_attr>,<obj_name>)
This command writes a "1" into <result_attr> if the object
specified by <obj_name> is transformed (rotated or sheared). It
writes a "0" into <result_attr> otherwise.
make_selected_obj_iconic(<sym_path>)
This command works like the MakeIconic() command from the
Special Menu, except that the user is not prompted for the name
of the icon. Instead, <sym_path> is used to specify the full
path name of the icon.
get_tgif_version(<major_attr,minor_attr,patchlevel_attr,build_attr>)
This command writes tgif’s major version number, minor version
number, patchlevel, and build information into <major_attr>,
<minor_attr>, <patchlevel_attr> and <build_attr>, respectively.
If an argument is the string NULL (case-sensitive), that
information is skipped.
get_tgif_dir(<result_attr>)
This command writes "$HOME/.Tgif" into <result_attr> where $HOME
is the home directory of the user.
get_profile_string(<result_attr>,<section>,<key>,<def_value>,<ini_path>)
This command gets the value associated with the key specified by
<key> from the section specified by <section> in the file
specified by the full path <ini_path> and stores it into the
attribute specified by <result_attr>. If there is not value
associated with the specified key, <def_value> is stored into
<result_attr>. If <key> is an empty string, all the key names
in <section> of <ini_path> will be written (in the same fashion
as in the find_obj_names command above) into <result_attr>. If
<section> is an empty string, all the section names in
<ini_path> will be written (in the same fashion as in the
find_obj_names command above) into <result_attr>.
write_profile_string(<section>,<key>,<value>,<ini_path>)
This command sets the value associated with the key specified by
<key> of the section specified by <section> in the file
specified by the full path <ini_path> to be <value>. If <key>
is an empty string, all key/value pairs in <section> of
<ini_path> will be cleared. <section> should not be an empty
string.
select_additional_obj(<obj_name>)
This command silently (no highlighting handles) selects an
additional object named <obj_name>. Please see the OBJECT NAMES
section above for the specification of object names.
open_file(<file_number>,<file_name>,<file_mode>)
This command opens the file specified by <file_name> in the mode
specified by <file_mode> and assigns the opened file a file
reference number of <file_number>. <file_number> must be 0 or
between 3 and 15. Opening file 0 rewinds the standard input.
Examples of modes are "r" for reading, "w" for writing, and "a"
for appending. A file is always opened in text (non-binary)
mode.
close_file(<file_number>)
This command closes the file associated with file reference
number <file_number>. <file_number> must be 0 or between 3 and
15.
read_file(<file_number>,<result_attr>)
This command reads a line from the file associated with file
reference number <file_number> and put the line in the attribute
specified by <result_attr>. <file_number> must be between 0
(for standard input) or between 3 and 15.
write_file(<file_number>,<string>)
This command writes <string> to the file associated with file
reference number <file_number>. <file_number> must be between 1
and 15. Numbers 1 and 2 are for standard output and standard
error files.
flush_file(<file_number>)
This command flushes the file associated with file reference
number <file_number>. <file_number> must be between 1 and 15.
Numbers 1 and 2 are for standard output and standard error
files.
append_file(<dest_file_name>,<src_file_name>)
This command appends the file specified by <src_file_name> to
the file specified by <dest_file_name>.
set_output_format(<format>,<color_output>)
This command sets the output format to <format>. If
<color_output> is 0, black and white output (printing) mode will
be used; otherwise, color output (printing) mode will be used.
Please see the Tgif.WhereToPrint X default for a list of
possible formats.
set_export_clip_rect(<ltx>,<lty>,<rbx>,<rby>)
This command sets the export clipping rectangle to be a
rectangular region with left-top corner at (<ltx>,<lty>) and
right-bottom corner at (<rbx>,<rby>). <ltx> must be strictly
less than <rbx> and <lty> must be strictly less than <rby>.
import_file(<file_name>,<format>,<ltx>,<lty>)
This command imports the file specified by <file_name> and place
it at (<ltx>,<lty>). The file is expected to be in the format
specified by <format>, which can be "XBM", "XPM", "GIF", "PNG",
"JPEG", "PBM", "PBM", "PGM", "PPM", and names specified by the
Tgif.ImportFilter# X defaults. If <format> is "TGIF", the file
should either be a tgif file.
set_xpm_output_version(<version_number>)
This command sets the XPM version number when outputting in the
X11 pixmap format to be <version_number>. <version_number> can
take on values 1 or 3.
edit_ini_section(<attr_name>,<title>,<section>,<ini_path>)
This command brings up a dialogbox to edit the section specified
by <section> in the file specified by the full path <ini_path>.
If the user press the OK button in the dialogbox, the section is
cleared and the content of the dialogbox is written back into
the file, and "OK" is placed in the attribute specified by
<attr_name>. If the user press the CANCEL button in the
dialogbox, the file is unmodified, and "CANCEL" is placed in the
attribute specified by <attr_name>.
select_from_ini_section(<attr_name>,<title>,<section>,<ini_path>)
This command brings up a list to select an entry from the
section specified by <section> in the file specified by the full
path <ini_path>. If nothing is selected, the attribute
specified by <attr_name> will be cleared. Otherwise, the
selected entry will be written into the attribute specified by
<attr_name>.
append_line_into_attr(<attr_name>,<string>)
This command appends the line specified by <string> to the
attribute specified by <attr_name>.
insert_line_into_attr(<attr_name>,<string>,<line_number>)
This command inserts the line specified by <string> as the nth
line of the attribute specified by <attr_name>, where n is a
zero-based index specified by <line_number>. n must be at least
1. If n is larger the number of lines in the attribute, blank
lines are automatically inserted.
clear_attr(<attr_name>)
This command clears the attribute value of the attribute
specified by <attr_name> and deletes all other lines of the
attribute if the attribute contains multiple lines.
create_text_obj(<abs_x>,<abs_baseline_y>,<string>)
This command creates a text object at the location
(<abs_x>,<abs_baseline_y>) with the text specified by <string>.
create_box_obj(<abs_ltx>,<abs_lty>,<abs_rbx>,<abs_rby>)
This command creates a rectangle defined by
(<abs_ltx>,<abs_lty>) and (<abs_rbx>,<abs_rby>).
create_corner_oval_obj(<abs_ltx>,<abs_lty>,<abs_rbx>,<abs_rby>)
This command creates a corner oval defined by
(<abs_ltx>,<abs_lty>) and (<abs_rbx>,<abs_rby>).
create_center_oval_obj(<abs_x>,<abs_y>,<radius>)
This command creates a center oval centered at (<abs_x>,<abs_y>)
with radius specified by <radius>.
create_edge_oval_obj(<abs_ltx>,<abs_lty>,<abs_rbx>,<abs_rby>)
This command creates an edge circle defined by
(<abs_ltx>,<abs_lty>) and (<abs_rbx>,<abs_rby>).
create_rcbox_obj(<abs_ltx>,<abs_lty>,<abs_rbx>,<abs_rby>)
This command creates a rounded-corner rectangle defined by
(<abs_ltx>,<abs_lty>) and (<abs_rbx>,<abs_rby>).
create_arc_obj(<abs_x>,<abs_y>,<radius>,<dir>,<angle1>,<angle2>)
This command creates an arc centered at (<abs_x>,<abs_y>) with
radius, direction, start angle, and end angle specified by
<radius>, <dir>, <angle1>, and <angle2>, respectively. The
<radius>, <dir>, <angle1>, and <angle2> are specified in the
same way as they are specified in the SpecifyAnArc() command
under the CreateObject submenu of the Edit Menu. <dir> can be
"+" or "-" where "+" is clockwise. <angle1> and <angle2> are in
degrees with 0 degree at the 12 o’clock position.
create_first_vertex(<abs_x>,<abs_y>)
This command is used in conjunction with the
create_next_vertex() and create_poly_obj() commands to create a
polyline/open-spline object. It can also be used in conjunction
with the create_next_vertex() and create_polygon_obj() commands
to create a polygon/closed-spline object. This command sets the
starting point of the polyline/open-spline object or the
polygon/closed-spline object to be at (<abs_x>,<abs_y>).
create_next_vertex(<abs_x>,<abs_y>)
This command is used in conjunction with the
create_first_vertex() and create_poly_obj() commands to create a
polyline/open-spline object. It can also be used in conjunction
with the create_first_vertex() and create_polygon_obj() commands
to create a polygon/closed-spline object. This command sets the
next vertex of the polyline/open-spline object or the
polygon/closed-spline object to be at (<abs_x>,<abs_y>).
create_poly_obj()
This command is used in conjunction with the
create_first_vertex() and create_next_vertex() commands to
create a polyline/open-spline object.
create_polygon_obj()
This command is used in conjunction with the
create_first_vertex() and create_next_vertex() commands to
create a polygon/closed-spline object.
start_create_group_obj()
This command is used in conjunction with the create_group_obj()
command to create a grouped object. This command marks the
beginning of the group.
create_group_obj()
This command is used in conjunction with the
start_create_group_obj() command to create a grouped object.
This command groups all objects created since the last
start_create_group_obj() call into a grouped object.
set_allow_interrupt(<true_or_false>)
If <true_or_false> is FALSE (case-sensitive), this command is
used to temporarily disable an user interrupt when tgif is
executing internal commands. If a user interrupt is received
when interrupt is disabled, it will be queued and will interrupt
the execution of internal commands when set_allow_interrupt() is
called again with <true_or_false> being TRUE (case-sensitive).
select_each_obj_and_exec(<attr_name_to_exec>)
This command first unselects any object that is selected. It
then selects each object in the current drawing in turn and
executes the internal command specified by the
<attr_name_to_exec> attribute. If this command is executed as a
result of a mouse click over an object, only objects in the
current page will be scanned for execution. If this command is
executed from a script file, objects in every page will be
scanned for execution.
edit_attr_in_text_mode(<attr_name>)
When this command is executed, tgif enters the text drawing mode
and edits the attribute specified by <attr_name>.
set_file_unsavable()
This command is used to make the current file unsavable.
pstoepsi(<target_eps_path>,<src_ps_path>,<scale>)
This command generates a preview bitmap for the PostScript file
in <src_ps_path> and prepends it to <src_ps_path> and save the
output in <target_eps_path> (<src_ps_path> is unmodified). The
only accepted values of <scale> is 1 or 2. If the
Tgif.ExternalPsToEpsi X default is set to true, this command
will simply invoke "pstoepsi <src_ps_path> <target_eps_path>"
externally if <scale> is 1 and will invoke "pstoepsi -2x
<src_ps_path> <target_eps_path>" if <scale> is 2. This command
only works if tgif is running in the interactive (non-batch)
mode.
objs_bbox_intersect(<obj1_name>,<obj2_name>,<result_attr>)
This command sets the value of the attribute specified by
<result_attr> to "1" if the boundingboxes of objects named
<obj1_name> and <obj2_name> intersect. It sets the value of the
attribute specified by <result_attr> to "0" otherwise.
delete_all_attr_from_selected_objs()
This command deletes all attributes from selected objects.
Please only use this command when commands are taken from an
external file!
ARITHMETIC EXPRESSIONS
Certain internal commands allow arithmetic expressions as arguments.
Infix notation is used. Supported operators (and their precedences)
are listed below.
? 1 if-then-else, e.g. <rel> ? <iftrue> : <else>
: 2 if-then-else, e.g. <rel> ? <iftrue> : <else>
|| 3 logical OR
&& 4 logical AND
| 5 bit-wise OR
^ 5 bit-wise XOR
& 5 bit-wise AND
== 6 equal
!= 6 not-equal
> 7 greater than
< 7 less than
>= 7 greater than or equal to
<= 7 less than or equal to
<< 8 shift left
>> 8 shift right
+ 9 add
- 9 subtract
* 10 multiple
/ 10 divide
// 10 integer divide
% 10 mod
! 11 logical NOT
~ 11 bit-wise invert/NOT
) 12 closed parenthesis
( 13 open parenthesis
GENERATING IMAGEMAP FILES
This section describes how to generate NCSA imagemap and CERN clickable
image files. The Tgif.ImageMapFileFormat X default decides whether to
generate a NCSA imagemap or a CERN clickable image file. Since the two
formats are very similar, we will only discuss how to generate NCSA
imagemap files. For more information about NCSA imagemap, please see
[3]. For more information about CERN clickable image, please see [4].
The Tgif.GenerateImageMap X default should be set to ‘‘true’’ to enable
the imagemap generation. When printing in the GIF format (see the
BASIC FUNCTIONALITIES section about printing), an XPM file (which will
be removed at the end of this process) is generated first. (The value
specified by the Tgif.InitExportPixelTrim X default is used to trim
extra pixels. Using these values forms an escape mechanism to fix an
idiosyncrasy that tgif can not figure out exactly how big the whole
image is.)
The XPM version is specified by the Tgif.XPmOutputVersion X default
unless the Tgif.UseXPmVersion1ForImageMap X default is set to ‘‘true’’,
which forces the XPM1 format. Then the command specified by the
Tgif.XpmToGif X default is executed to convert the XPM file into a GIF
(Generic Interchange Format) file which can be used by software such as
NCSA’s Mosaic(1). The file extension for the GIF file is specified by
the Tgif.GifFileExtension X default. Together with the GIF file, an
imagemap file with file extension specified by the
Tgif.ImageMapFileExtension X default is generated. The content of the
imagemap is generated as follows.
Tgif first looks for a file attribute with attribute name href. The
value of the attribute is written as the default URL. If such a file
attribute can not be found, imagemap generation is aborted. If it is
found, then all objects in the file are scanned. For an object having
an attribute named href, the value of the attribute is written as the
URL for a method line in the imagemap. If the object is neither a
circle nor a poly/polygon, the rectangle method is used.
Similar mechanism is used when printing in the HTML format, except that
a generic HTML file is generated with an imagemap in the Spy Glass
Client-side Imagemap format. You can generate a custom HTML file if
you specify an HTML export template using SetHTMLExportTemplate() from
the File Menu. Details about the template file is described below.
HTML EXPORT TEMPLATE
If an HTML export template file is specified with the
SetHTMLExportTemplate() from the File Menu, custom HTML files can be
generated when printing in the HTML format. The customization is done
through the use of variables embedded in the HTML export template file.
These variables have the syntax of an HTML character entity. They all
starts with "&tgv" and ends with ";". They are:
&tgvfilename;
This variable will be replaced by the name of the file (without
file extension).
&tgvcurnum;
This variable will be replaced by current page number.
&tgvfirstnum;
This variable will be replaced by the first page number (usually
1).
&tgvlastnum;
This variable will be replaced by last page number.
&tgvprevnum;
This variable will be replaced by the previous page number (with
wrap around).
&tgvprevnumnowrap;
This variable will be replaced by the previous page number (with
no wrap around).
&tgvnextnum;
This variable will be replaced by the next page number (with
wrap around).
&tgvnextnumnowrap;
This variable will be replaced by the next page number (with no
wrap around).
&tgvtitle;
This variable will be replaced by the title the page or of the
file.
&tgvmapobjs;
This variable will be replaced by the objects (specified as
<AREA> tabs) in a client-side image map.
For example, if a template specifies:
<IMG SRC="&tgvfilename;-&tgvcurnum;.gif"
USEMAP="#p0">
<MAP NAME="p0">
&tgvmapobjs;
<AREA SHAPE="RECT"
COORDS="0,0,&tgvmapwidth;,&tgvmapheight;"
HREF="&tgvfilename;-&tgvnextnum;.html">
</MAP>
Exporting using PrintOneFilePerPage() with this template may get (for
page 2 of a file name "foo.obj" with 5 pages):
<IMG SRC="foo-2.gif"
USEMAP="#p0">
<MAP NAME="p0">
<AREA SHAPE="RECT" ...>
...
<AREA SHAPE="RECT" ...>
<AREA SHAPE="RECT"
COORDS="0,0,145,97"
HREF="foo.html">
</MAP>
GENERATING MICROSOFT WINDOWS EPSI FILES
Some Microsoft Windows (TM) applications do not understand standard
PostScript %%BeginPreview, %%EndImage, and %%EndPreview comments. This
section describes how to generate an EPSI file which is understood by
them. This feature is invoked when the current print format is
TiffEPSI. In this case, the generated EPSI file will contain 30 bytes
of binary information in the beginning of the file and a TIFF image
(also binary) at the end of the file. This file also will not contain
the %%BeginPreview, %%EndImage, and %%EndPreview comments. A file in
this format is normally not considered to be a PostScript file except
under Windows.
When this feature is enabled, tgif generates a normal EPSI file first,
then dump the current content of the file into an X11 bitmap file. The
command specified in Tgif.XbmToTiff is executed to generate a TIFF
image which is then append at the end of the EPSI file.
LOCKING OBJECTS
Objects can be locked and unlocked using #< and #> keyboard commands.
When a selected object is locked, it is shown with gray handles. A
locked object can be moved, stretched, flipped, or rotated; however,
its properties, such as fill pattern, width, etc., can be changed.
Locked objects can also be deleted. When a locked object is grouped
with other objects, the resulting grouped object is also locked. A
locked object can be used as an anchor to align other objects; however,
DistributeObjs() command will fail if any objects are locked. Locked
objects do not participate in any operations in the select vertex mode.
UNDO/REDO
Most operations can be undone and redone. The Tgif.HistoryDepth X
default controls the size of the undo buffer. If it is set to -1, then
the undo buffer’s size is infinite. The undo buffer is flushed when
the New() or Open() commands are executed (from the File Menu), when
the FlushUndoBuffer() command is executed from the Edit Menu, or when
Pop() is executed from a .sym file. If a private colormap is used
(automatically done when new colors can not be allocated from the
default colormap), executing FlushUndoBuffer() will attempt to reset
the colormap (if the -DDONT_FREE_COLORMAP compile option is not used).
DOMAINS
A domain is a collection of library symbols suitable for
instantiations. A library is implemented as a directory of .sym files,
and therefore, a domain is implemented as a search path. If there are
symbols with the same file name which reside in different directories
specified in the search path, then the one closer to the front of the
search path will be made available for the user to instantiate.
The number of domains is specified by the MaxDomains X default, and the
names of the domains are specified by the DomainPath# X default. The
library search paths are specified by csh environment variables. See
the section on X DEFAULTS for more details.
Domain information can also be loaded into the ~/.Tgif/domain.ini file
by setting Tgif.DomainInIni to true and selecting Reload Domain Info
From X from the Domain submenu of the File Menu.
SELECTING A NAME FROM A POPUP WINDOW
When selecting a file name, a symbol name, or a domain name, tgif pops
up a window with appropriate names for the user to choose from. The
user can use mouse clicks to select an entry. Key strokes can also be
used to specify the desired name; however, tgif attempts to match the
key strokes with names in the selection on the fly. If a match can not
be found, the key strokes are ignored. ^n, ^j, or the DownArrow key
advances the selection down by 1 entry; ^p, ^k, or the UpArrow key
advances the selection up by 1 entry. ^f, ^d, or the DownArrow key
with <Control> key held down advances the selection down by 10 entries;
^b, ^u, or the UpArrow key with <Control> key held down advances the
selection up by 10 entries. ’$’ will select the last entry, while ’^’
will select the first entry. ^w or ^y un-select the selected entry.
If the selected entry is a directory, hitting <CR> will change
directory; if not, hitting <CR> finishes the selection process and the
selected entry is returned.
In selecting file names to open or import, typing ’/’ is interpreted as
going to the root directory or specifying an URL. At this point, the
automatic matching of key strokes is temporarily disabled until either
a <TAB> or a <CR> is pressed. Also, clicking the middle mouse button
in the file name area pastes from the clipboard.
The automatic appending of index.obj or .obj (introduced in version
2.16) is obsoleted and an URL is never modified.
The current selection is displayed near the top of the popup window.
Back-space should be used with caution because it might change the
current directory to the parent directory.
IMPORTING EPS FILES
Encapsulated PostScript (EPS) files can be imported using the #(
keyboard command. If the EPS file has a preview bitmap (can be
generated using the pstoepsi tool), tgif will display it
(HideBit/Pixmap() from the Layout Menu can be used to disable the
displaying of bitmap/pixmaps). When the EPS object is saved in a .obj
or .sym file, neither the preview bitmap, nor the PostScript content of
the EPS file is saved. Therefore, when printing such a file (either
from tgif or using prtgif), the EPS file must be present at the same
place from which it was originally imported.
IMPORTING LATEX
Short Version
You can import a LaTeX equation into a tgif object. When you select
Instantiate from the Special Menu (or press <Cntrl>i), you should see
eq4.sym. Double-click it and tgif will ask you to click on the drawing
area to place it. After you have placed it, you have instantiated an
eq4 symbol and the instantiation is called an eq4 object (or the LaTeX
equation object). Now you can go into edit text mode (e.g. press
<Cntrl>w) and click anywhere inside the eq= attribute (i.e. the text of
the equation) to edit the equation. Return to select mode (e.g. press
<meta>k) and double click on the eq= attribute to run latex on it and
import the resulting EPSI file.
If you have a large equation, you can right-click on the equation
object, select Edit Attribute in Editor, and select eq= and edit the
equation in an editor of your choice. You can use the Tgif.Editor X
default to select your editor, for example:
Tgif.Editor: xemacs -title ’%s’ ’%s’
To declutter your screen, you may select the eq4 object and use the
shortcut key T to hide the eq= attribute. Type T again to make it
visible.
Once you import the EPSI file, you may use the left mouse button to
drag either the eq= attribute or the imported graphic, and the other
will follow. If you hold the control key down, you can drag the eq=
attribute separately.
Details
Since version 4.1.16, the standard distribution of tgif comes with four
LaTeX equation symbol files:
eq4.sym
eq4-2x.sym
eq4-ps2epsi.sym
eq4-epstool.sym
The Debian package installs these files in /usr/share/tgif/latex, and
initializes tgif with one domain (number 0) called LaTeX. When tgif
starts, the default domain should be domain number 0, and tgif should
look for *.sym files first in the current directory, then in
~/.tgif/latex, then in /usr/share/tgif/latex.
In order to use eq4.sym, in addition to latex and dvips, you need:
pstoepsi to convert a PS (PostScript) file generated by
dvips to an EPSI (encapsulated PostScript file with a preview
bitmap) file
netpbm used by pstoepsi to convert a PBM file to a preview bitmap for
the final EPSI file
ghostscript
used by pstoepsi to render a PS file into a PBM file
Once you have these tools properly installed, you can simply
instantiate eq4.sym and change the value of the eq= attribute.
Just double-click the equation object and tgif will run the following
commands:
latex tmpfile
dvips -N -n 1 -o tmpfile.ps tmpfile
pstoepsi tmpfile.ps tmpfile.eps
where tmpfile is a temporary file generated by tgif (usually in /tmp)
and the file name starts with Tgif.
This should work if everything is installed properly. In case it does
not work, you will get an error messagebox. Do not close the box.
Change directory into /tmp and look for the latest file that starts
with Tgif and ends in .tex and copy it. Then run the above commands
manually to debug the problem. For example, you can do:
cd /tmp
ls -lrt Tgif*
-rw-r--r-- 1 william 230 Mar 22 11:27 TgifmTaOdC.tex
-rw-r--r-- 1 william 4636 Mar 22 11:27 TgifmTaOdC.log
-rw-r--r-- 1 william 324 Mar 22 11:27 TgifmTaOdC.dvi
-rw-r--r-- 1 william 8 Mar 22 11:27 TgifmTaOdC.aux
-rw-r--r-- 1 william 18561 Mar 22 11:27 TgifmTaOdC.ps
-rw-r--r-- 1 william 18561 Mar 22 11:27 TgifmTaOdC.eps
(Please note that in the above listing, TgifmTaOdC.ps and
TgifmTaOdC.eps have the same file size, this means that pstoepsi did
not work.)
cp TgifmTaOdC.tex foo.tex
latex foo
dvips -N -n 1 -o foo.ps foo
pstoepsi foo.ps foo.eps
more foo.eps
At this point, you should see that the first few lines of foo.eps look
like:
%!PS-Adobe-2.0 EPSF-1.2
%%BoundingBox: 258 634 354 653
%%BeginPreview: 97 20 1 20
% 00000000000000000000000e00
% ...
% 00000000000000000003c00000
%%EndImage
%%EndPreview
...
These lines are added by pstoepsi. The numbers in the %%BoundingBox:
and %%BeginPreview: depends on your equation and the PS-Adobe and EPSF
versions in the first line may vary depending on your setup.
If you get errors when you run latex, dvips, or pstoepsi manually,
there is something wrong with the setup of these tools. If they all do
the right thing but tgif still shows errors, please send e-mail to me!
eq4-2x.sym can produce a higher (2x) resolution preview bitmap, but you
will need the special netpbm-20may1999 version of netpbm. It may not
work with a newer version of netpbm. eq4-ps2epsi.sym is not
recommended. eq4-epstool.sym is like eq4.sym but uses epstool instead.
ADDITIONAL FONTS
In addition to the Times, Courier, Helvetica, NewCentury, and Symbol
fonts, additional fonts can be specified using the Tgif.AdditionalFonts
X default. (The default screen fonts can also be replaced, please see
Tgif.HasAlternateDefaultFonts in the X DEFAULTS section for more
details.) Each additional font requires 4 parts, one for each font
style (in the order of Roman, Bold, Italic, and BoldItalic). Each part
contains 3 strings. The first string specifies the family, weight,
slant, and width of the font (please see the man pages for xfontsel(1)
for more details; also there is a second form which is described
below). The second string specifies the registry and encoding of the
font (see xfontsel(1) again). (One can use xlsfonts(1) to see what
fonts are available and pick out the just mentioned two strings from
the output.) The third string specifies the PostScript font name.
For example, if one wants to use the X Lucida font to represent the
PostScript ZapfChancery-MediumItalic font, one can set
Tgif.AdditionalFonts as follows:
Tgif.AdditionalFonts: \n\
lucida-medium-r-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic \n\
\n\
lucida-demibold-r-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic \n\
\n\
lucida-medium-i-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic \n\
\n\
lucida-demibold-i-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic
The above maps all four font styles of the Lucida font to the
ZapfChancery-MediumItalic font (similar to how Symbol font is handled).
The first string can also be specified in a second form which is
identified by having "%d" as part of the string. For example, one can
use "lucidasans-%d" as the first string. In this case, the actual X
font used will be the specified string with "%d" replaced by the font
size. The encoding string (second string) is ignored (but must be
present). The font name prefix (please see Tgif.FontNamePrefix entry
in the X DEFAULTS section) is also ignored.
POSTSCRIPT CHARACTER ENCODING FOR INTERNATINOAL CHARACTERS
Sometimes, different encodings of the same PostScript font is needed
for characters with character codes between 161 and 255 (inclusive).
This can be accomplished in two ways. One way is to use
Tgif.AdditionalDontReencode (and Tgif.DontReencode). Another way is to
use Tgif.PSFontNeedCharSubs. The difference is that with
Tgif.AdditionalDontReencode, a PostScript font’s encoding is skipped.
With Tgif.PSFontNeedCharSubs, characters in a PostScript font can be
given specific encoding.
In both cases, there is a need to introduce fake font names (place
holders). For example,
Tgif.AdditionalFonts: \n\
utopia-medium-r-normal \n\
adobe-fontspecific \n\
UtopiaTmp-Regular \n\
\n\
utopia-bold-r-normal \n\
adobe-fontspecific \n\
UtopiaTmp-Bold \n\
\n\
utopia-medium-i-normal \n\
adobe-fontspecific \n\
UtopiaTmp-Italic \n\
\n\
utopia-bold-i-normal \n\
adobe-fontspecific \n\
UtopiaTmp-BoldItalic
Tgif.PSFontAliases: \n\
UtopiaTmp-Regular=Utopia-Regular \n\
UtopiaTmp-Bold=Utopia-Bold \n\
UtopiaTmp-Italic=Utopia-Italic \n\
UtopiaTmp-BoldItalic=Utopia-BoldItalic
In the above example, 4 fake PostScript font names are created (all
have a common "UtopiaTmp" prefix). The encoding for these fonts is
adobe-fontspecific, according the X11 fonts being used.
Tgif.PSFontAliases maps the fake PostScript font names to the
corresponding real PostScript font names. (If Tgif.PSFontAliases is
missing, non-existent PostScript font names such as UtopiaTmp-Regular
will appear in a PostScript file.)
To skip a PostScript font’s encoding, one can use the
Tgif.AdditionalDontReencode X default. For example, if one specifies:
Tgif.AdditionalDontReencode: UtopiaTmp
characters with character codes between 161 and 255 (inclusive) will
not be encoded with ISO-Latin-1 character names. For a list of
characters names that are ISO-Latin-1 encoded, please see
<URL:http://bourbon.usc.edu/tgif/faq/charencode.html#iso8859-1>.
To substitute characters in a PostScript font with specific encoding,
one can use the Tgif.PSFontNeedCharSubs and Tgif.PSCharSubs_* X
defaults. (You still need Tgif.AdditionalFonts and Tgif.PSFontAliases
setup as above.) Here is an example:
Tgif.PSFontNeedCharSubs: \n\
Utopia-Regular=Foo \n\
Utopia-Bold=Foo \n\
Utopia-Italic=Foo \n\
Utopia-BoldItalic=Foo
Tgif.PSCharSubs_Foo: \n\
exclamdown/Aogonek \n\
AE/Cacute \n\
ecircumflex/eogonek
In the above example, Tgif.PSFontNeedCharSubs specified a list of fake
PostScript font names that requires character substitutions and their
corresponding TOKEN names. For a fake PostScript font name that maps
to TOKEN, the list of characters to be substituted is specified in the
Tgif.PSCharSubs_TOKEN X default. The format for Tgif.PSCharSubs_TOKEN
is a list of OLDCHARCODE/NEWCHARNAME strings where OLDCHARCODE is a
character code in decimal or octal format and NEWCHARNAME must be the
name of a PostScript character. In the above example, Foo was used as
the TOKEN name. In real use, something like iso8895-2 may be more
appropriate for a TOKEN name. Since decimal or octal codes are
allowed, the following is equivalent to the above:
Tgif.PSFontNeedCharSubs: \n\
Utopia-Regular=iso8859-2 \n\
Utopia-Bold=iso8859-2 \n\
Utopia-Italic=iso8859-2 \n\
Utopia-BoldItalic=iso8859-2
Tgif.PSCharSubs_iso8859-2: \n\
161/Aogonek \n\
8#306/Cacute \n\
8#312/eogonek
Please note that substitution only occurs for characters with character
codes between 161 and 255 (inclusive).
For more information, please see
<URL:http://bourbon.usc.edu/tgif/faq/charencode.html#charsubs>.
SQUARE DOUBLE BYTE FONTS
Starting with version 4.0 of tgif, double-byte fonts are supported.
But only double-fonts where every character has the same width and
height are supported. Double-byte fonts is specified using the
Tgif.SquareDoubleByteFonts X default. The format of this X default is
similar to that of the Tgif.AdditionalFonts X default described in the
ADDITIONAL FONTS section above with differences described here. Each
double-byte font requires 4 parts, one for each font style (in the
order of Roman, Bold, Italic, and BoldItalic). Each part contains 3
strings. The first string specifies the name of the font. It must
contain a "%d" as part of the string. The actual X font used will be
the specified string with "%d" replaced by the font size. The second
string can be either "*", "H", or "V". When it is the "V" string, each
character is rotated 90 degrees counter-clockwise. Otherwise, the
characters are not rotated. The third string specifies the PostScript
font name.
Using input methods (specified by the Tgif.DoubleByteInputMethod X
default) one can mix english (single-byte) substrings within a double-
byte string. The font to use for the english substring is specified by
the Tgif.DefaultSingleByteFont X default.
For example, if one wants to use the X Song Ti font to represent
PostScript GB-Song-Regular font, one can set Tgif.SquareDoubleByteFonts
as follows:
Tgif.DefaultSingleByteFont: Helvetica
Tgif.GBShowFontChar: 271372
Tgif.SquareDoubleByteFonts: \n\
-isas-song ti-*-*-*--%d-*-*-*-*-*-gb2312.1980-0 \n\
* \n\
GB-Song-Regular \n\
\n\
-isas-song ti-*-*-*--%d-*-*-*-*-*-gb2312.1980-0 \n\
* \n\
GB-Song-Regular \n\
\n\
-isas-song ti-*-*-*--%d-*-*-*-*-*-gb2312.1980-0 \n\
* \n\
GB-Song-Regular \n\
\n\
-isas-song ti-*-*-*--%d-*-*-*-*-*-gb2312.1980-0 \n\
* \n\
GB-Song-Regular
In the above example, the Song Ti font doesn’t have styles such as
italic and bold, so all four parts are identical. The
Tgif.GBShowFontChar X default specifies a double-byte octal character
to be used to represent this font in the Choice Window when this font
is selected.
Below is another example of using the X JIS fonts to represent
PostScript Ryumin-Light-EUC-H and Ryumin-Light-EUC-V fonts: as follows:
Tgif.RyuminShowFontChar: 244242
Tgif.SquareDoubleByteFonts: \n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
H \n\
Ryumin-Light-EUC-H \n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
H \n\
Ryumin-Light-EUC-H \n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
H \n\
Ryumin-Light-EUC-H \n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
H \n\
Ryumin-Light-EUC-H \n\
\n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
V \n\
Ryumin-Light-EUC-V \n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
V \n\
Ryumin-Light-EUC-V \n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
V \n\
Ryumin-Light-EUC-V \n\
-jis-fixed-*-*-*--%d-*-*-*-*-*-jisx0208.1983-* \n\
V \n\
Ryumin-Light-EUC-V
MULTIPAGE DRAWING
An object file can contain multiple pages. Two layout modes, stacked
and tiled, for a multipage drawing are supported. In stacked layout
mode, pages are considered to be stacked on top of each other, and
therefore, an object can only appear on one page. In tiled layout
mode, pages are tiled to form a large logical page; in this case, an
object can exist on several physical pages simultaneously. Swiching
between the two modes are considered rare events and can not be undone.
Tgif does not allow switching from the tiled layout mode to the stacked
mode when there exists an object that spans physical page boundaries
because it can not decide which physical page the object belongs.
Page numbers are supported through the use of page numbering objects.
A page number objecting is an object that contains an attribute whose
name is !PAGE_NUM (the name is case-sensitive) and the name part of
that attribute is not shown (hiding an attribute name can be achieved
by using the Move/JustifyAttr() command under the Attribute submenu of
the Special Menu). The value of the attribute determines how the page
number is printed. If the value of the attribute contains a
!(STACKED_PAGE_NUM) substring, that part of the substring will be
replaced by the page number if the page layout mode is stacked. If the
page layout mode is tiled, the string will be printed out as is. If
the value of the attribute contains a !(STACKED_NUM_PAGES) substring,
that part of the substring will be replaced by the number of pages if
the page layout mode is stacked. If the value of the attribute
contains a !(TILED_PAGE_ROW) or !(TILED_PAGE_COL) substring, that part
of the substring will be replaced by the row number or the column
number of the physical page if the page layout mode is tiled.
SPECIAL ATTRIBUTES
There are a few special attributes that tgif recognized. There are
described in this section. They are all case-sensitive.
!PAGE_NUM=<page_number>
This specifies the page numbers in a multipage drawing. Please
see the MULTIPAGE DRAWING section for details.
auto_center_attr
If an attribute’s name is empty and the value is
auto_center_attr, then all the visible attributes of the owner
object will automatically be centered relative to the bounding
box of the owner object. It doesn’t really make sense to have
multiple visible attributes because they will overlap. This
attribute is useful for making simple flowchart elements.
unmakeiconic_on_instantiate
If a symbol object’s attribute has an empty attribute name and
the value is unmakeiconic_on_instantiate, then when the symbol
is instantiated, the following commands are performed on the
just-instantiated icon object: 1) UnMakeIconic() command from
the Special Menu, 2) UnGroup() command from the Arrange Menu,
and 3) the "unmakeiconic_on_instantiate" text object is removed.
This attribute is useful for making simple flowchart segments.
unmakeiconic_on_instantiate_delete_attrs
If a symbol object’s attribute has an empty attribute name and
the value is unmakeiconic_on_instantiate_delete_attrs, then when
the symbol is instantiated, the following commands are performed
on the just-instantiated icon object: 1) UnMakeIconic() command
from the Special Menu, 2) delete all attributes from this
object, and 3) UnGroup() command from the Arrange Menu. This
attribute is useful for putting a group of "useful" objects into
a symbol object.
retracted_arrows
If an attribute’s name is empty and the value is
retracted_arrows for a polyline or open-spline object with more
than 2 vertices, then the arrows of the spline object is
retracted by one vertex.
auto_retracted_arrows
This is very similar to the retracted_arrows above except that
the object must be an interpolated open-spline with only one
arrow head. The spline object is forced to have 3 vertices and
the middle vertex of the spline object is automatically adjusted
when an endpoint is moved.
auto_exec=<internal_command>
If such a file attribute exists, the value is executed when the
file is opened (unless the file is opened as a result of
executing the hyperjump_then_exec() internal command).
edit_attrs_in_context_menu=...
If an object has an attribute named edit_attrs_in_context_menu,
the values (starting from the 2nd line and separated by
linebreaks) of this attribute are treated as attribute names.
The named attributes will be visible in the Edit Attribute In
Editor submenu of the Context Menu. For example, if an object
has the following attributes:
edit_attrs_in_context_menu=
x
y
z
w=greetings
x=hello
y=world
z=how are you
good-bye
the Edit Attribute In Editor submenu of the Context Menu will
only show "x=hello", "y=world", and "z=how are you".
EXPORT TO TABLE
When the ExportToTable() command is selected from the Table submenu of
the Special Menu, certain attributes of selected objects are written
into a user-specified output file in a format which can be easily
imported by a spreadsheet program or to be used by the MergeWithTable()
command described in the next section. An output file contains columns
of strings. Two columns are separated by a single <TAB> character.
The first row of a output file contains the column names and all other
rows contain values.
The names of the attributes to be written are specified by the file
attribute named TABLE_ATTRS (which is denoted by !.TABLE_ATTRS here).
The value of the TABLE_ATTRS file attribute is a list of comma-
separated attribute names. When ExportToTable() command is executed,
the attribute names specified by !.TABLE_ATTRS are written to the
output file first. Then, for each selected object, every one of its
attribute which appears in the list specified by !.TABLE_ATTRS are
written to the output file in one line. If an object has no attributes
that match the specification, no corresponding line is generated.
MERGE WITH TABLE
When the MergeWithTable() command is selected from the Table submenu of
the Special Menu, a selected object is merged (also known as mail-
merged on PCs) with a table (data) file (in the same format as the
output file described in the previous section) to generate a new
multipage drawing having the stacked page layout mode.
The selected object contains formating information, and it is also used
as a template to be replicated for each data row in the table file. If
an attribute of the replica matches the column name of the table, the
attribute value is set to the value in the table file. The replicas
are tiled horizontally first.
Eight attributes must be specified in the template object. They are
all case-sensitive. The ones that measure distances can be specified
in inches ("in"), centi-meters ("cm"), or pixels (if no units are
specified).
PAPER_WIDTH
This specifies the width of the paper.
PAPER_HEIGHT
This specifies the height of the paper.
LEFT_MARGIN
This specifies the distance to the left edge of the
paper.
TOP_MARGIN
This specifies the distance to the top edge of the paper.
H_PITCH
This specifies the distance between the left edges of the
replicas.
V_PITCH
This specifies the distance between the top edges of the
replicas.
NUM_COLS
This specifies the number of replicas to tile
horizontally before moving down to the next row.
NUM_ROWS
This specifies the number of replicas to tile vertically
before moving to the next page.
After each replica is generated, filled with the data from the table
file, and placed, its attribute named exec is executed (unless an
attribute named EXEC_AFTER_MERGE is specified, in which case, the
attribute named by the EXEC_AFTER_MERGE attribute is executed instead).
If there is no attribute named by the EXEC_AFTER_MERGE attribute,
nothing is executed. (Please see the INTERNAL COMMANDS section for
details on command execution.) One can use the exec command to
construct other attributes from the attributes associated with the data
table.
If an attribute whose name is empty and whose value is the string
USER_PLACEMENT, the user will be asked to place the replica (object
name will be displayed in the Status Window when the object is being
placed). In this case, the 8 placement related attributes are ignored.
If an attribute whose name is empty and whose value is the string
STRIP_DOUBLE_QUOTES, data fields surrounded by double-quotes are
stripped.
MIME TYPES AND MAILCAPS
When an URL names an HTTP server, the HTTP server sends the Content-
type of the URL along with the remote file referenced by the URL to
tgif. The Content-type contains information such as the type/subtype
of the file plus some optional fields. If the file is not a tgif file,
the following mechanism is used to view the file.
First, the X defaults are looked up to see if there is an external
viewer specified for the file. Please see Tgif.@@@Viewer in the X
DEFAULTS section below for details. If there’s no match, the
type/subtype is matched against entries in the MIME-types file. The
default MIME-types file is .mime.types in user’s home directory.
Please see Tgif.MimeTypesFile in the X DEFAULTS section on how to
override the default MIME-types file. The first field in each line of
the MIME-types file specifies type/subtype information. If there is a
type/subtype match in the MIME-types files, the MailCap files are
consulted as follows.
A line in a MailCap file consists of fields separated by semi-colons.
The first field specifies the type/subtype and the second field
specifies a view command for viewing a file that matches the
type/subtype. For tgif, the view command must contains a single %s
substring to be replaced by local copy of the URL. Only the %t and the
%{} optional fields are supported by tgif. The multipart MIME-type is
not supported. The type/subtype information of the remote file is
matches against the MailCap files. If a match is found, the
corresponding view command is executed. If no match is found, but the
type of the remote file is either application, audio, image, or video,
the file is saved and no external viewer is launched. Otherwise, the
remote file is assumed to be pure text and tgif will create a text
object to view the text.
The MailCap files are the (colon-separated) files specified by the
MAILCAP environment variable (if defined). If MAILCAP is not defined,
the .mailcap file in the user’s home directory is used.
MIME is the Multipurpose Internet Mail Extensions specified in RFC1521,
and MAILCAP is specified in RFC1524.
HOW TO MAKE A BUILDING-BLOCK OBJECT (SYMBOL FILE)
Here are the steps for defining a building-block object, to be used in
a hierarchical design.
1) Draw the representation part of the building-block object.
Group everything together. Select this grouped object.
2) Popup the main menu with the middle mouse button; select
‘‘Special’’. Select ‘‘MakeSymbolic’’ from the next popup menu.
The selected object becomes a symbol and gets a dashed boundary.
3) Type in attributes as individual text strings. Select the
symbol object and all the text strings to be attached to the
symbol. Type #a (for Attach) to attach attributes to the
symbol.
4) (This step is optional.) Build the definition part of the
building-block object. Look at the ‘‘flip-flop.sym’’ file for
an example. To look at that file, first, instantiate a ‘‘flip-
flop’’ by typing ^i (for Instantiate). Select the flip-flop
from the popup window; place the flip-flop; select the flip-flop
and type ^v (for Push) to see the symbol file.
5) Save and name the file. If the current library path contains
the current directory (or ’.’), the symbol just built should be
instantiatable by typing ^i.
X11 PIXMAP (XPM) FORMATS
Tgif can only import X11 pixmaps that satisfy the constraints described
here. The format of the X11 pixmap must be either 1 (XPM1) or 3
(XPM3). Only a subset of the XPM3 format is supported, namely, the key
field for the color specification must be ’c’ (for color visuals).
Tools that generate XPM1 format files are (they might have been
upgraded to support XPM3), pbmplus (or netpbm), which is a set of
bitmap and pixmap conversion freeware (together with xv, the colors for
pixmap objects can be manipulated), and xgrabsc, another freeware;
also, xloadimage can display XPM1 files. Tools that can generate XPM3
format files are, for example, xsnap(1) and sxpm(1). For each color
specified in the color string, a color cell is allocated. If the
allocation fails, the current color will be used for that color string.
If the first color character is a back-quote (‘) or a space, then the
corresponding color is substituted with the background color of the
tgif window if the Tgif.GuessXPmBgColor X default is set to ‘‘true’’.
(This design choice is made because the pixmap will then look ‘‘right’’
on both regular and reverse video.) The following is an example of a
very small pixmap file (in XPM1 format).
#define arrow_format 1
#define arrow_width 5
#define arrow_height 3
#define arrow_ncolors 3
#define arrow_chars_per_pixel 1
static char *arrow_colors[] = {
"‘", "Black",
"a", "red",
"b", "yellow"
};
static char *arrow_pixels[] = {
"‘a‘‘‘",
"aabbb",
"‘a‘‘‘"
};
LATEX FIGURE FORMATS
Here we show how to make a figure for a LaTeX file, first with the
\psfig (or \epsf) special construct, then with the psfile special
construct. (The author does not recommend the psfile construct.) An
example of both can be found in ‘‘example.tex’’ which is included with
the tgif distribution.
To print a tgif file to be included in a LaTeX document with the \psfig
or \epsf special construct (files generated will be in the Encapsulated
PostScript format), first select LaTeX format in the panel window
(click the left mouse button on the laser printer icon), then type ^p
to generate the Encapsulated PostScript file. If the file name is
‘‘an-sr-flip-flop.obj’’, then the LaTeX figure file generated will be
named ‘‘an-sr-flip-flop.eps’’. This file can be included in a LaTeX
document as follows,
\input{psfig}
\begin{figure*}[htb]
\centerline{\psfig{figure=an-sr-flip-flop.eps}}
\caption{An SR flip-flop. \label{fig:an-sr-flip-flop}}
\end{figure*}
An alternative way is to use the \epsf construct as follows,
\input{epsf}
\begin{figure*}[htb]
\centerline{\epsffile{an-sr-flip-flop.eps}}
\caption{An SR flip-flop. \label{fig:an-sr-flip-flop}}
\end{figure*}
The \centerline command above centers the picture. If one has multiple
tgif figures in one’s LaTeX document, one only have to include the
psfig macro (\input{psfig} or \input{epsf}) once, right after the
\begin{document} statement.
If Encapsulated PostScript is not available, the psfile special
construct can be used as described here. In this case, since LaTeX
doesn’t not know where the bounding box of the drawing is, it takes
some practice to get this just right. Here is something that seems to
work. First, center the picture on the page (e.g., the width of a
portrait style page is 8.5 inch, so the center of the page is at the
4.25 inch mark), and make the top object in the picture about 1/4 inch
away from the top of the page. Select the LaTeX format in the panel
window, then print in the LaTeX format. As with the psfig construct, a
file with the .eps extension will be generated. This file can be
included in a LaTeX document as follows,
\begin{figure*}[htb]
\special{psfile="an-sr-flip-flop.eps" hoffset=-40}
\rule{0in}{1.1in}
\caption{An SR flip-flop. \label{fig:an-sr-flip-flop}}
\end{figure*}
The \rule{0in}{1.1in} above specifies an invisible box of 1.1 inches
high, which is the total height of the picture in an-sr-flip-flop.
CONNECTING OBJECTS
In the world of E-CAD, an icon object can represent an electronic
component and a line object can represent a connection between a pair
of pins of two electronic components. When a component moves, the
endpoint of a wire connecting to the component will also move with the
component. Tgif simulates these functionalities in a limited fashion.
In tgif, a connection is represented by matching signal names. A wire
is defined as a polyline object having a type=tgWire attribute and an
attribute named signal_name. The definition of a pin is more
complicated. It is described in the next paragraph. If two pins have
identical values for the signal_name attribute, they are considered to
be connected (they do not have to be visually connected by a wire).
A pin object must have a type=port attribute and attributes named
signal_name and name. But not all objects having such attributes are
pins. In addition, a pin object must be either:
1) a top-level symbol or an icon object
or:
2) an immediate subobject of a owner symbol or icon object. or:
3) an immediate subobject of a owner grouped object which has a
type=tgBroadcastWire attribute.
In (2) above, the owner object must also have an attribute named name
and must not be a subobject of another symbol or icon object. If the
owner object is a subobject of a grouped object, the name attributes of
the grouped object will be ignored.
In (3) above, that grouped object can be created using the
ConnectPortsToBroadcastWire() command in the PortsAndSignals submenu of
the Special Menu when a polyline object and some floating port objects
are selected.
A pin object can have a connected view and a disconnected view. A
connected view is a subobject with a view=conn,FILL,PEN attribute and a
disconnected view is a subobject with a view=disconn,FILL,PEN
attribute; FILL and PEN are numeric values between 0 and 31
(inclusive). The value corresponds to patterns in the Fill Menu and
the Pen Menu. Normally, only 0 or 1 should be used. When the
signal_name attribute of a pin object is changed from an empty string
to a non-empty string, the pen and fill of the subobject that
corresponds to the disconnected view will be set to 0 (meaning NONE)
and the pen and fill of the subobject that corresponds to the connected
view will be set to the values specified in the view attribute of the
connected view. When the signal_name attribute of a pin object is
changed from a non-empty string to an empty string, the pen and fill of
the subobject that corresponds to the connected view will be set to 0
and the pen and fill of the subobject that corresponds to the
disconnected view will be set to the values specified in the view
attribute of the disconnected view.
A connection can be created using the ConnectTwoPortsByAWire() command
from the PortsAndSignals submenu of the Special Menu. Please note that
if a pin is part of another object, that object must also have a name
attribute with a non-empty value. When two pins are connected using
this command, the signal_name attributes of the pins and the wire will
be set to have the same value.
The moving of endpoints when a component moves is implemented in tgif
using the constrained move mode from the MoveMode Menu (please see
Tgif.ConstrainedMove in the X DEFAULTS section for additional
information). Please note that a connected wire that is not visually
connected will not automatically extends itself to follow a connected
component even in the constrained move mode. Also, when a wire object
is deleted, the signal_name attributes of connected pins do not change
(since they are not really "connected").
X DEFAULTS
Tgif.Geometry: WIDTHxHEIGHT+X+Y
Tgif.IconGeometry: +X+Y
Tgif.Foreground: COLORSTRING
The default foreground color is Black.
Tgif.Background: COLORSTRING
The default background color is White.
Tgif.BorderColor: COLORSTRING
If not specified, the foreground color will be used.
Tgif.ReverseVideo: [on,off]
For black and white terminal, reverse video ‘‘on’’ means the
background is black. For color terminal, reverse video ‘‘on’’
means the background is specified by the Tgif.Foreground color.
The default is off.
Tgif.InitialFont: [Times,Courier,Helvetica,NewCentury,Symbol]
This specifies the initial font. The default is Courier.
Tgif.InitialFontStyle: [Roman,Bold,Italic,BoldItalic]
This specifies the initial font style. The default is Roman.
Tgif.InitialFontJust: [Left,Center,Right]
This specifies the initial font justification. The default is
Left.
Tgif.InitialFontDPI: [75,100]
Obsoleted.
Tgif.InitialFontSizeIndex: [0,1,2,3,4,5]
Obsoleted.
Tgif.InitialFontSize: NUMBER
This specifies the size of the start-up font. The default is
14. An alternative form allows "pt" to be specified immediately
after NUMBER (with no space between "pt" the the NUMBER).
Tgif.MsgFontSizeIndex: [0,1,2,3,4,5]
Obsoleted.
Tgif.MsgFontSize: NUMBER
This specifies the size of the font used for messages, menues,
and popup windows. The default is 14.
Tgif.RulerFontSize: NUMBER
This specifies the size of the font used for ruler windows. The
default is 10.
Tgif.DefaultFontSize: NUMBER
This specifies the size of the font to be used when a requested
for a font size can not satisfied. This size must exist for all
fonts used in tgif. The default is 14.
Tgif.FontSizes: NUMBER1 NUMBER2, ...
This specified the font sizes. The default is 8 10 11 12 14 17
18 20 24 25 34. An alternative form allows "pt" to be specified
immediately after a NUMBER (with no space between "pt" the the
NUMBER). Please also use Tgif.InitialFontSize to specify the
initial font size to use if 14 is not in the specified font
sizes.
Tgif.AdditionalFonts: FONT_SPEC1 FONT_SPEC2 ...
In addition to the Times, Courier, Helvetica, NewCentury, and
Symbol fonts, additional fonts can be specified here. Please
see the ADDITIONAL FONTS section for details.
Tgif.FontNamePrefix: [-*, *]
This specified the prefix to be used when tgif makes a request
to the X server. The default is -*. Certain fonts have obscure
font names (e.g., does not start with the - character). In
order to use these fonts, this X default can be set to *.
Tgif.HasAlternateDefaultFonts: [true,false]
The default value of this X default is false. If it is set to
‘‘false’’, tgif uses the iso8859 registry with ASN1 encoded
screen fonts, and it looks for "times", "courier", "helvetica",
"new century schoolbook", and "symbol" as part of the screen
font names. Some X servers do not support these fonts. In this
case, this X default can be used to make tgif use user specified
screen and PostScript fonts. If this X default is set to
‘‘true’’, tgif will look for additional X defaults of the form
Tgif.<ps_font_name>, where <ps_font_name> can be one of the
following strings:
Times-Roman
Times-Bold
Times-Italic
Times-BoldItalic
Courier-Roman
Courier-Bold
Courier-Oblique
Courier-BoldOblique
Helvetica-Roman
Helvetica-Bold
Helvetica-Oblique
Helvetica-BoldOblique
NewCenturySchlbk-Roman
NewCenturySchlbk-Bold
NewCenturySchlbk-Italic
NewCenturySchlbk-BoldItalic
Symbol
The corresponding value of the X default must contain "%d" as
part of the string, and the "%d" string will be replaced by the
font size when the font is requested. For example, The
following lines will use the Times New Roman screen font instead
of the Times screen font and use the Bookman PostScript font
instead of the Times PostScript font, if
Tgif.HasAlternateDefaultFonts is ‘‘true’’:
Tgif.Times-Roman: *-times new roman-medium-r-*--%d-*,Bookman-
Light
Tgif.Times-Bold: *-times new roman-bold-r-*--%d-*,Bookman-Demi
Tgif.Times-Italic: *-times new roman-medium-i-*--%d-*,Bookman-
LightItalic
Tgif.Times-BoldItalic: *-times new roman-bold-i-*--%d-*,Bookman-
DemiItalic
Please note that certain X servers require the right-hand-side
font specifications to have all the dashes in place.
Tgif.DefaultCursor: [x_cursor,arrow,...]
This specifies the select cursor. Entries in <X11/cursorfont.h>
(without the XC_ prefix) are valid names of the cursor. The
default is arrow.
Tgif.DrawCursor: [x_cursor,arrow,...]
This specifies the cursor used when drawing objects. Entries in
<X11/cursorfont.h> (without the XC_ prefix) are valid names of
the cursor. The default is the same as Tgif.DefaultCursor.
Tgif.DragCursor: [x_cursor,arrow,...]
This specifies the cursor used when dragging. Entries in
<X11/cursorfont.h> (without the XC_ prefix) are valid names of
the cursor. The default is hand2.
Tgif.VertexCursor: [x_cursor,arrow,...]
This specifies the cursor used in the select vertices mode.
Entries in <X11/cursorfont.h> (without the XC_ prefix) are valid
names of the cursor. The default is plus.
Tgif.FreeHandCursor: [x_cursor,arrow,...]
This specifies the cursor used in freehand drawing mode.
Entries in <X11/cursorfont.h> (without the XC_ prefix) are valid
names of the cursor. The default is pencil.
Tgif.RubberBandColor: COLORSTRING
This specifies color used for rubber-banding (XORing). The
default color is the same as the foreground color.
Tgif.MaxColors: NUMBER
This specifies the maximum number of colors. Color0 through
ColorMax, where Max is NUMBER-1, in X defaults are queried. If
NUMBER is greater than the default of 11, Color11 through
ColorMax must all exist in X defaults. Please see the GRAPHICAL
OBJECTS section for a list of the default colors.
Tgif.Color#: COLORSTRING
This specifies the correspondence between a color number and a
color.
Tgif.DefaultColorIndex: NUMBER
This specifies the default color index if a certain color can
not be found. The default is 0.
Tgif.ShortCuts: ITEM1 ITEM2 ...
The ITEM specifies the correspondence between a key (may be case
sensitive) and a non-alphanumeric key command. Please see the
SHORTCUTS section for details.
Tgif.MaxLineWidths: NUMBER
This specifies the maximum number of line widths. LineWidth0
through LineWidthMax, ArrowWidth0 through ArrowWidthMax, and
ArrowHeight0 through ArrowHeightMax, where Max is NUMBER-1, in X
defaults are queried. If NUMBER is greater than the default
value of 7, LineWidth7 through LineWidthMax, ArrowWidth7 through
ArrowWidthMax, and ArrowHeight7 through ArrowHeightMax must all
exist in X defaults. Some default values will be used for those
that are not specified in the X defaults.
Tgif.DefaultLineWidth: NUMBER
This specifies the initial line width index. The default is 0.
Tgif.LineWidth#: NUMBER
This specifies a line width. The default line widths are 1, 2,
3, 4, 5, 6, and 7.
Tgif.ArrowWidth#: NUMBER
This specifies the width (when the arrow is pointing
horizontally) of the arrow head for arc and open-spline objects.
The default arrow widths are 8, 10, 12, 14, 18, 20, and 22.
Tgif.ArrowHeight#: NUMBER
This specifies half the height (when the arrow is also pointing
horizontally) of the arrow head for arc and open-spline objects.
The default arrow heights are 3, 4, 5, 6, 7, 8, and 9.
Tgif.MaxDomains: NUMBER
This specifies that NUMBER is the number of domains.
DomainPath0,DomainPath1,...,DomainPathM all must exist in X
defaults. Here M=NUMBER-1.
Tgif.DomainPath#: DOMAINSTRING
This specifies the correspondence between a domain number, a
domain name, and the path associated with a domain. Hence one
DomainPath# X default is required for each domain defined. Here
the # should be replaced with a domain number. The domain
numbers should be 0,1,...,MAXDOMAINS-1, where MAXDOMAINS is set
in the MaxDomain X default above. The MaxDomain X default in
combination with the DomainPath# X default are required to use
domains.
DOMAINSTRING contains strings which are separated by the ’:’
symbol. The first string is the name of the domain. Each of
the rest of the strings specifies a directory where symbol files
are to be searched when the Instantiate command is executed
(please see the HOW TO MAKE A BUILDING-BLOCK OBJECT section for
details). Another way to look at the DOMAINSTRING specification
is that removing the first string (which specifies the domain
name) and the first ’:’ symbol, a DOMAINSTRING has the form of
the PATH csh(1) environment variable. For example, to specify
the symbol path for domain DEFAULT to look for symbol files,
first in the library directory /tmp/tgif/symbols, then in the
current directory, DOMAINSTRING should be set to the following
value:
DEFAULT:/tmp/tgif/symbols:.
Tgif.DefaultDomain: NUMBER
This specifies the default domain when tgif starts up. The
default is 0.
Tgif.PrintCommand: COMMAND
This specifies the print command used for printing the
PostScript file. The default is lpr(1). An example would be
lpr -h -Pprintername. If COMMAND contains a %s substring, the
%s will be replaced by the full path name of the PostScript file
which is normally send to the print command. Therefore, COMMAND
without a %s substring behaves identically to COMMAND %s.
Please note that this only works when running tgif without the
-print command line option. This can be used to send a font
file to the printer before the tgif PostScript file is sent as
in the following example:
cat /somewhere/sansfex.pfa %s | lpr -Pmyprinter
Tgif.WhereToPrint: STRING
This specifies the initial print/export destination/format.
STRING can be Printer, EPS, PS, Bitmap, Text, EPSI, GIF, HTML,
PDF, WinEPSI, PNG, JPEG, PPM, or NetList. The default is EPS.
Tgif.PrintDirectory: PATH
This specifies the print directory when the output destination
is not the printer. The default is a null string, which means
that the output goes into the directory in which the current
file resides.
Tgif.NoTgifIcon: [true,false]
If set to ‘‘true’’, tgif will not use its own icon window. In
this case, one should also set Tgif.UseWMIconPixmap described
below to true. The default is false.
Tgif.UseWMIconPixmap: [true,false]
If set to ‘‘true’’, tgif will use the standard icon pixmap.
Also, Tgif.NoTgifIcon will be ignored. The default is true.
Tgif.DontShowVersion: [true,false]
If set to ‘‘true’’, the tgif version will not be displayed on
top of the tgif window. The default is true.
Tgif.XBmReverseVideo: [true,false]
If set to ‘‘true’’, an invert bitmap operation will be performed
when importing an X11 bitmap file. The default is false.
Tgif.AskForXBmSpec: [true,false]
If set to ‘‘true’’, the user will be asked to specify
magnification and geometry for an X11 bitmap file being
imported. Format of the specification is MAG=WxH+X+Y, where MAG
is the magnification, W and H specifies the width and height,
and the location specification can be +X+Y, +X-Y, -X+Y, and -X-
Y. The ’=’ is mandatory if any of the geometry information is
specified. The default is false.
Tgif.AskForXPmSpec: [true,false]
If set to ‘‘true’’, the user will be asked to specify
magnification and geometry for an X11 pixmap file being
imported. The format of the specification is the same as for
AskForXBmSpec. The default is false.
Tgif.StripEPSComments: (obsolete)
This X default is obsolete in tgif-4.0.11 because it turns out
that it’s not always okay to strip PS comments (it should always
be set to false).
Tgif.GuessXPmBgColor: [true,false]
If set to ‘‘true’’, then when tgif imports an X11 pixmap file
with the first color string being ’ ’ (the space character) or
’‘’ (the back quote character), it will treat the first color as
a background color. This means that the specified color in the
X11 pixmap file will be changed to the current background color.
The default is false. (Please note that this default was true
before patch 2 of tgif-2.7. This X default is there for
compatibility reasons; it should be considered obsolete.)
Tgif.XPmOutputVersion: NUMBER
This specifies the XPM version number when outputting in the X11
pixmap format. NUMBER can take on values 1 or 3. The default
is 1.
Tgif.XPmInXGrabSCFormat: [true,false]
If Tgif.XpmOutputVersion is set to 1, setting this to ‘‘true’’
will force the X11 pixmap output to resemble what xgrabsc
generates. The default is false.
Tgif.UseGrayScale: [true,false]
If set to ‘‘true’’, gray scales will be used for tiling patterns
to speed up printing. The default is false.
Tgif.AutoPanInEditText: [true,false]
If set to ‘‘true’’, auto panning will be used such that the text
cursor is always visible in text edit mode (except when the
cursor is to the left or on top of the paper). This should
probably be turned off on slow servers. The default is true.
Tgif.PercentPrintReduction: NUMBER
The specifies the initial percent print reduction/magnification.
The default is 100.
Tgif.ConstrainedMove: [true,false]
This specifies the initial move mode. When set to ‘‘true’’,
moving or stretching an object will cause the endpoints of all
polylines or open-splines, whose endpoints fall within the
object, and may be the neighboring vertices, to be moved.
Please see the IDIOSYNCRASIES section for more details. The
default value is false.
Tgif.DoubleQuoteDoubleQuote: [true,false]
When set to ‘‘true’’, output of the double-quote character will
be preceded by a double-quote character; when set to false,
output of the double-quote character will be preceded by a back-
slash character. The default value is false.
Tgif.GridSystem: [English,Metric]
This sets the initial grid system. The default is English.
Tgif.InitialGrid: NUMBER
This specifies the initial grid size. For the English grid
system, NUMBER can be -2, -1, 0, +1, or +2 for grid sizes of
1/32, 1/16, 1/8, 1/4, and 1/2 inch. For the Metric grid system,
NUMBER can be -1, 0, +1, or +2 for grid sizes of 1mm, 2mm, 5mm,
and 1cm. The default value is 0.
Tgif.DropObsIconAttrWhenUpdate: [true,false]
If set to ‘‘true’’, obsolete icon attributes will be dropped
without confirmation when the UpdateSymbols command is executed.
If set to ‘‘false’’, a popup window will prompt the user to
specify what to do with the obsoleted icon attributes. The
default is false.
Tgif.UseRecentDupDistance: [true,false]
If set to ‘‘true’’, the most recent change in position produced
by a combination of a duplicate and a move command will be used
for the new duplicate command. Otherwise, some default distance
will be used to position the duplicate. The default is true.
Tgif.SplineTolerance: NUMBER
This specifies the tolerance of spline drawing. The smaller the
number, the smoother the spline. The default is 9 (min is 3 and
max is 13).
Tgif.SplineRubberband: [true,false]
If set to ‘‘true’’, spline rubber-bands will be used in drawing,
moving, and stretching open and closed splines. (This might not
be desirable if the spline contains too many vertices.) The
default is true.
Tgif.Synchronize: [on,off]
XSynchronize is called if this default is set to ‘‘on’’. The
default is off.
Tgif.DoubleClickUnIconify: [true,false]
If set to ‘‘true’’, double mouse clicks are used to de-iconify
the icon window (in this mode, the icon window ignores single
mouse clicks and drags). The default is false.
Tgif.MainMenuPinDistance: NUMBER
This specifies the horizontal distance (in pixels) the user
needs to drag a popup menu before the popup menu is to be pinned
down. The default is 80. (If pinned popup menus are not
desired, then this should be set to a value greater than the
screen width.) Dragging the left mouse button can be used to
move the pinned popup menu; clicking the right button in the
popup menu will remove it.
Tgif.DoubleClickInterval: NUMBER
This specifies the maximum interval (in milliseconds) between
two mouse clicked to be recognized as one double-click. The
default is 300.
Tgif.HandleSize: NUMBER
This specifies (half) the size of the handle used to highlight
objects. Its allowable value is between 2 and 6. The default
is 3.
Tgif.HistoryDepth: NUMBER
This specifies the size of the undo/redo buffer; negative values
mean that the buffer is unbounded. The default is -1.
Tgif.SaveTmpOnReturn: [true,false]
If set to ‘‘true’’, a tmpmodel file will be saved automatically
before returning to the driver. Otherwise, no files will be
saved automatically. The default is true.
Tgif.ImportFromLibrary: [true,false]
If set to ‘‘true’’, the library directories specified by the
current domain are searched for .obj, .sym, xbitmap/xpixmap, and
EPS files to import. Otherwise, the current directory will be
used as the starting point. The default is false.
Tgif.WarpToWinCenter: [true,false]
If set to ‘‘true’’, the mouse is warped to the center of popup
windows. Otherwise, the mouse is not warped. The default is
true.
Tgif.SaveCommentsInSaveNew: [true,false]
If set to ‘‘true’’, "%%" type comments in the file will be
stored in the newly created file. The default is true.
Tgif.CanvasWindowOnly: [true,false]
If set to ‘‘true’’, only the canvas window will be displayed
(this is kind of the ‘‘demo’’ mode). The default is false.
Tgif.UsePsAdobeString: [true,false,NUMBER_1/NUMBER_2]
If set to ‘‘true’’, the first line in the PS or EPS file will be
"%!PS-Adobe-2.0 EPSF-1.2". If set to ‘‘false’’, it is just
"%!". If the PS-Adobe string confuses the document manager
(such as Transcript) on your site, you should set it to
‘‘false’’. If the third form is used,, the first line will be
"%!PS-Adobe-NUMBER_1 EPSF-NUMBER_2". The default is false.
Tgif.HalfToneBitmap: [true,false]
If set to ‘‘true’’, the Floyd-Steinberg half-tone method will be
used when printing in the X11 bitmap format. This is useful
when the drawing contains X11 pixmap objects. The default is
false.
Tgif.ThresholdBitmap: [true,false]
If set to ‘‘true’’, a simple thresholding method will be used to
decide whether a bit is turned on or off when printing in the
X11 bitmap format. If Tgif.HalfToneBitmap is set to true, this
X default is ignored. The default is false.
Tgif.BitmapThreshold: NUMBER
This specifies the threshold value used in either the Floyd-
Steinberg half-tone algorithm or the simple thresholding
algorithm. NUMBER must be between 0 and 1. This X default is
only active when either the Tgif.HalfToneBitmap or the
Tgif.ThresholdBitmap X default is set to true. The default
value is 0.5 if Tgif.HalfToneBitmap is true, and is 1.0 if
Tgif.ThresholdBitmap is true (basically, anything that is not
white will be black).
Tgif.GroupedTextEditable: [true,false]
If set to ‘‘false’’, only top level text objects and attributes
of top level objects can be edited when the drawing mode is set
to the text mode. If set to ‘‘true’’, text objects and
attributes everywhere can be edited. The default is false.
Tgif.DefaultEPSScaling: NUMBER
This specifies the scaling factor applied to an imported PS or
EPS image. As mentioned in the IDIOSYNCRASIES section below,
tgif treats 128 pixels as an inch and PostScript treats 72
points as an inch. In order to have real-size PostScript
images, this parameter should be set to 1.7778 (which is
128/72). The default value is 1.
Tgif.IntrCheckInterval: NUMBER
This specifies the number of objects drawn before tgif checks
for interrupts. If this is set to be 0 or less, interrupt is
not allowed. The default value is 10.
Tgif.TiledPageScaling: NUMBER
This specifies the scaling value used when a multipage drawing
in tiled page mode is printed. Since most PostScript printers
do not use the full page as the drawing area, setting this
number to 1 may get truncated output. The default value is 0.9.
Tgif.TGIFPATH: STRING
This specifies the directory where the files, mentioned in the
FILES section below, can be found. The TGIFPATH environment
variable may override this option. The default value is
specified by the compiler option TGIF_PATH.
Tgif.TGIFICON: STRING
This specifies the name of the object file to be displayed when
tgif is iconified. If it starts with a / character, absolute
path is used; otherwise, the actual path of the icon file is
$TGIFPATH/STRING where TGIFPATH is either defined using the X
defaults or an environment variable. The default value is
‘‘tgificon.obj’’.
Tgif.StickyMenuSelection: [true,false]
If set to ‘‘true’’, when patterns/linewidths/linestyles/... of
objects are changed using a menu action, the corresponding
pattern/linewidth/linestyle/... becomes the current selection.
The default is true.
Tgif.PSBopHook: STRING
If specified, the following PostScript line is added at the
beginning of each page when printing to the printer or to a PS
file,
userdict /STRING known { STRING } if
This option should only be used if one is very familiar with
PostScript. (Setting STRING to "tgif-bop-hook" is recommended
since it would not have a name conflict with existing software,
such as dvips(1).)
Tgif.PSEopHook: STRING
If specified, the following PostScript line is added at the end
of each page when printing to the printer or to a PS file,
userdict /STRING known { STRING } if
This option should only be used if one is very familiar with
PostScript. (Setting STRING to "tgif-eop-hook" is recommended
since it would not have a name conflict with existing software,
such as dvips(1).)
Tgif.MinimalEPS: [true,false]
If set to ‘‘false’’, comments such as %%Pages, %%DocumentFonts,
%%EndComments, %%BeginProlog, %%EndProlog, %%Page, %%Trailer,
and %%EOF will be generated in an EPS output. These comments
may confuse certain ‘‘document managers’’. Therefore, the
default is true if Tgif.UsePsAdobeString is not specified (and
the default is false if Tgif.UsePsAdobeString is specified).
Tgif.InitialPrintInColor: [true,false]
If set to ‘‘true’’, color output (printing) mode is enabled on
startup. Please note that in black and white PS/EPS/EPSI
printing mode, the white color will be be printed as black (only
background will be printed as white). The default is true
(except when the -print command line option is used).
Tgif.InitialShowGrid: [true,false]
If set to ‘‘false’’, showing grid is disabled on startup. The
default is true.
Tgif.InitialSnapOn: [true,false]
If set to ‘‘false’’, snapping to the grid points is disabled on
startup. The default is true.
Tgif.NoMenubar: [true,false]
If set to ‘‘true’’, no menubar will be shown initially. The
default is false.
Tgif.NoStatusWindow: [true,false]
If set to ‘‘true’’, no Status Window will be shown initially.
The default is false.
Tgif.ReverseMouseStatusButtons: [true,false]
If set to ‘‘true’’, the left mouse status and the right mouse
status are swapped. This should be used when a ‘‘left-handed
mouse’’ is used. The default is false.
Tgif.MinimalMenubar: [true,false]
If set to ‘‘false’’, the menu items in the Menubar Window will
be the same as the main popup menu. This would take up much
more space. If set to ‘‘true’’, the Page, PageLayout,
HoriAlign, VertAlign, and MoveMode menus are collapsed into the
View cascading menu; the Font, TextStyle, and TextSize menus are
collapsed into the Text cascading menu; and the LineDash,
LineStyle, LineType, LineWidth, Fill, and Pen menus are
collapsed into the Graphics cascading menu. The default is
true.
Tgif.ColorBgInPrintingColorPS: [true,false]
If set to ‘‘true’’, the window background color is used as the
background color when generating color PostScript output. If
set to ‘‘false’’, no background color is used. The default is
false.
Tgif.ScrollBarWidth: NUMBER
This specifies the width of a scroll bar. NUMBER must be
between 2 and 16. The default is 16.
Tgif.InitialPaperSize: STRING
The STRING specifies the initial width and height of the paper.
STRING is in the "<width> x <height>" form. <width> and
<height> is a numeric value immediately followed by either "in"
(inch) or "cm" (centi-meter). The " x " that separate the
<width> and <height> is mandatory. If A4PAPER is defined in the
Makefile, the default value is "21cm x 29.7cm". If A4PAPER is
not defined in the Makefile, the default value is "8.5in x
11in".
Tgif.UpdateChildUsingAlignment: [true,false,no_overlap]
If set to ‘‘true’’ or ’no_overlap’, when update_eps_child(),
update_xbm_child(), or update_xpm_child() internal command is
executed, the current horizontal and vertical alignments are
used to place the EPS/XBM/XPM subobject. If the horizontal
alignment is L, C, R, S, or -, the subobject is aligned to the
left, center, right, center, or left, respectively, to the
parent object. If the vertical alignment is T, M, B, S, or -,
the subobject is placed above, middle, below, middle, or below
the parent object if this X default is set to ’no_overlap’; the
subobject is aligned to the top, middle, bottom, middle, or
below the parent object if this X default is set to ‘‘true’’.
If this X default is set to ‘‘false’’, the subobject is placed
left aligned and below the parent object. The default is false.
Tgif.GenerateImageMap: [true,false]
If set to ‘‘true’’, NCSA imagemap or CERN Clickable Image files
will be generated when print in GIF format. In this case,
Tgif.XpmToGif, Tgif.ImageMapFileExtension,
Tgif.GifFileExtension, Tgif.ImageMapFileFormat, and
Tgif.UseXPmVersion1ForImageMap X defaults, described below, will
be interpreted; otherwise, they are ignored. Please see the
section on GENERATING IMAGEMAP FILES for details. The default
is false.
Tgif.XpmToGif: STRING
The STRING specifies a command used to convert an XPM file to a
GIF file. The STRING must contain a %s substring to be replaced
by the full path name of the XPM file. The default is "xpmtoppm
%s | ppmtogif".
Tgif.ImageMapFileExtension: STRING
The STRING specifies the file extension for a imagemap file.
The default is "map".
Tgif.GifFileExtension: STRING
The STRING specifies the file extension for a GIF file. The
default is "gif" (lower case).
Tgif.ImageMapFileFormat: [NCSA,CERN]
The STRING specifies either the NCSA imagemap or the CERN
clickable image format. The default is NCSA for the NCSA
imagemap format.
Tgif.UseXPmVersion1ForImageMap: [true,false]
The setting of this X default should depend on the setting of
the Tgif.XpmToGif X default above. If set to ‘‘true’’, XPM1
file is generated regardless of the setting of the
Tgif.XPmOutputVersion X default. The default is true.
Tgif.UsePaperSizeStoredInFile: [true,false]
If set to ‘‘true’’, the paper size information stored in a just
opened file is used. The default is true.
Tgif.OneMotionSelMove: [true,false]
If set to ‘‘true’’, one can select and move an object in one
motion. The default is false.
Tgif.TiffEPSI: (obsolete)
This X default is obsolete because TiffEPSI became a supported
export format since tgif-4.0.
Tgif.XbmToTiff: STRING
The STRING specifies a command used to convert an XBM file to a
TIFF file. The STRING must contain either one of two %s
substring. The first %s substring is to be replaced by the full
path name of the XBM file. The optional second %s substring is
to be replaced by the full path name of the generated TIFF
image. The default is "xbmtopbm %s | pnmtotiff -none > %s".
Tgif.EPSIExportExtension: STRING
STRING specifies the file extension used for exporting EPSI
files. The default is "eps".
Tgif.HotListFileName: STRING
STRING specifies a full path name of a file used to store the
hot file list. By default, this file is .Tgif_hotlist in the
user’s home directory.
Tgif.@@@Viewer: STRING
STRING specifies an external viewer for an remote URL with a
file extension of @@@. STRING can be in 3 forms. It can be the
string "NONE" to indicate that when such a remote file is
encountered, tgif should retrieve the file into a user specified
directory. For example, if one wishes to retrieve .gz files,
one can use:
Tgif.gzViewer: NONE
STRING can also contain the string %S (S is capitalized), this
indicates that %S is to be replaced by the URL. For example, if
one wishes to view .html files using xmosaic, one can use:
Tgif.htmlViewer: xmosaic %S
Another form of STRING contains the string %s (S is lower-case),
this indicates that the remote file is to be retrieved into a
user specified directory and view by a tool. For example, if
one wishes to view .gif files using xv, one can use:
Tgif.gifViewer: xv %s
Please note that this mechanism has precedence over the
mechanism described in the MIME TYPES AND MAILCAPS section
above.
Tgif.AutoHyperSpaceOnRemote: [true,false]
If set to ‘‘false’’, tgif will not go into the hyperspace mode
when a remote URL is visited. The default is true.
Tgif.AllowLaunchInHyperSpace: [true,false]
If set to ‘‘true’’, launching of applications is enabled in the
hyperspace mode when a remote URL is visited. This is
potentially very dangerous because the application may do
catastrophic damages. Therefore, it is strongly recommended
that it is set to false. The default is false.
Tgif.CanChangeAttrColor: [true,false]
If set to ‘‘true’’, color of an attribute can be changed when it
is attached to an object. The default is false.
Tgif.MimeTypesFile: STRING
STRING specifies a full path name of the MIME-types file. Tgif
only uses the type/subtype field in the MIME-types file and
ignores all other fields. The default MIME-types file is
.mime.types in user’s home directory.
Tgif.LocalRGBTxt: STRING
If one would like to override certain system colors, one can use
STRING to specify a full path name of a file to be consulted
first before looking up the color in the server. The file must
be in the same format as the rgb.txt file. Namely, each line
contains 4 fields, the first 3 fields correspond to the red,
green, and blue components of the color, and the 4th field is
the name of the color. A color component must have a value
between 0 and 255 (inclusive).
Tgif.PrintUsingRequestedColor: [true,false]
If set to ‘‘true’’, the color PostScript file being printed will
use the requested color instead of the color returned by the X
server. The default is false.
Tgif.ShowMeasurement: [true,false]
If set to ‘‘true’’, the location of the cursor and the width and
height of the object begin drawn/dragged/stretched will be
shown. The default is false.
Tgif.ShowMeasurementUnit: STRING
The STRING specifies the unit used to display the measurement
cursor. There are 2 basic formats. One is just the word
"pixel", "inch", or "cm". There are also known as basic units.
Another format is NUM BASIC-UNIT/NEW-UNIT, where NUM is a
numeric value, BASIC-UNIT is one of the basic units, and NEW-
UNIT is any string. For example, "0.1 cm/mm" means that the new
display unit is "mm" and 1 "mm" is 0.1 cm. "50 pixel/cm" is
identical to "1 cm/cm" and "128 pixel/inch" is identical to "1
inch/inch". The default is pixel.
Tgif.PageStyleLandscape: [true,false]
If set to ‘‘true’’, tgif comes up in landscape mode. The
default is false.
Tgif.QueryZoomInPoint: [true,false] or
[always,no_select,no_query,never]
If set to ‘‘true’’ (or ‘‘always’’), the user will be asked to
select a center point when zooming in. If set to ‘‘no_select’’,
the user will be asked to select a center point when zooming in
if no objects are selected. If set to ‘‘no_query’’, the
position of the mouse is the zoom-in point. In this case, it is
not desirable to zooms in using a menu selection. The default
is false (or never).
Tgif.GZipCmd: STRING
The STRING specifies a command used to gzip a .obj file. The
command must produce output into its stdout. If the command
contains a %s substring, the %s will be replace by the full path
name of a temporary copy of the .obj file. The default is "gzip
-c".
Tgif.GUnZipCmd: STRING
The STRING specifies a command used to unzip a zipped tgif file
(with extension .obj.gz or .sym.gz) into a tgif file. The
command must produce output into its stdout. If the command
contains a %s substring, the %s will be replace by the full path
name of a temporary copy of the zipped file. The default is
"gunzip -c".
Tgif.HttpProxy: STRING
The STRING specifies a host name and a port number of an HTTP
proxy server. Format of the specification is <host>:<port>. If
:<port> is omitted, 80 is used as the default port number. The
environment variable http_proxy has precedence over this X
default. The default is not to use an HTTP proxy server.
Tgif.FtpProxy: STRING
The STRING specifies a host name and a port number of an FTP
proxy server. Format of the specification is <host>:<port>. If
:<port> is omitted, 21 is used as the default port number. The
environment variable ftp_proxy has precedence over this X
default. The default is not to use an FTP proxy server.
Tgif.InitialArrowStyle: [NONE,RIGHT,LEFT,DOUBLE]
This specifies the initial arrow style for polyline/open-
splines/arcs. The default is RIGHT.
Tgif.ShowPageInEPS: [true,false]
If set to ‘‘true’’, a showpage PostScript command will be
generated for an EPS or EPSI file. The default is true.
Tgif.MaxNavigateCacheBuffers: NUMBER
This specifies the number of cache buffers allocated to cache
remote files (to minimize communication). NUMBER must be non-
negative. The default is 40.
Tgif.NumberFileInPrintOnePage: [true,false]
If set to ‘‘true’’, when PrintOnePage from the Print Menu is
selected for a stacked multipage drawing (e.g., file.obj),
file_N with the proper file extension will be generated, where N
corresponds to the selected page number. The default is false.
Tgif.OneMotionTimeout: NUMBER
When Tgif.OneMotionSelMove is set to true, moving an object is
considered to be making a selection if the elapse time between
mouse-down and mouse-up is smaller than the timeout value
specified by this X default (in milliseconds). The default is
200.
Tgif.MinMoveInterval: NUMBER
When Tgif.OneMotionSelMove is set to false, moving an object is
considered to be making a selection if the elapse time between
mouse-down and mouse-up is smaller than the interval specified
by this X default (in milliseconds). The default is 0.
Tgif.GifToXpm: STRING
The STRING specifies a command used to convert a GIF file to an
XPM file. The STRING must contain a %s substring to be replaced
by the full path name of the GIF file. The default is "giftopnm
%s | ppmtoxpm".
Tgif.InitExportPixelTrim:
LEFT_NUMBER,TOP_NUMBER,RIGHT_NUMBER,BOTTOM_NUMBER
The numbers specify the number of pixels to trim when printing
or exporting in the XBM, XPM, or GIF format. The use of these
values forms an escape mechanism to fix an idiosyncrasy that
tgif can not figure out exactly how big the whole image is. The
default values are all 0’s.
Tgif.QuantizingLevels: NUMBER
Some image functions such as Sharpen() uses convolution and may
generate an image that uses more than 256 colors which tgif can
not handle. The NUMBER specifies the number of colors to
quantize down to when such a situation occurs. The default is
222.
Tgif.RotateCursor: [x_cursor,arrow,...]
This specifies the cursor used in the rotate mode. Entries in
<X11/cursorfont.h> (without the XC_ prefix) are valid names of
the cursor. The default is crosshair.
Tgif.ColorLayers: [true,false]
If set to ‘‘true’’, each color is considered to be a different
layer which can be individually turned on and off. If a color
layer is turned off, primitive objects in that layer will not be
visible. A grouped object only becomes invisible when all its
constituent objects are invisible. The default is false.
Tgif.TiffToXbmCmd: STRING
The STRING specifies a command used to convert a TIFF file to an
XBM file. This command is used when importing an EPSI file
generated by a Windows application. The STRING must contain a
%s substring to be replaced by the full path name of the TIFF
file. The default is "tifftopnm %s | pgmtopbm | pbmtoxbm"
Tgif.DefFixedWidthFont: STRING
The STRING specifies a font to be used as the default font for
the Status Window, menus, dialogboxes, etc. The default is
"-*-courier-medium-r-normal-*-14-*-*-*-*-*-iso8859-1".
Tgif.DefFixedWidthRulerFont: STRING
The STRING specifies a font to be used in the horizontal and
vertical ruler windows. The default is "-*-courier-medium-r-
normal-*-10-*-*-*-*-*-iso8859-1".
Tgif.MenuFont: STRING
The STRING specifies a font to be used in menus. If this X
default is not specified, the default font is used in menus.
Tgif.BoldMsgFont: STRING
The STRING specifies a bold font to be used in buttons and
dialogboxes. If this X default is not specified but
Tgif.MenuFont is specified, this will take on the value of
Tgif.MenuFont. If this X default and Tgif.MenuFont are not
specified, the default font is used in bold messages.
Tgif.MsgFont: STRING
The STRING specifies a thin font to be used in the Status Window
and dialogboxes. If this X default is not specified, the
default font is used in messages.
Tgif.BggenToXpm: STRING
The STRING specifies a command for generating an X11 pixmap file
to be executed when RunBggen() is selected from the ImageProc
Menu. The STRING must contain two %s substrings. The first %s
is to be replaced by a user specified string. The second %s is
to be replaced by the geometry of the image. The default is
"bggen %s -g %s | ppmquant 64 | ppmtoxpm".
Tgif.DefaultErrorDiffuseLevels: R_NUMBER G_NUMBER B_NUMBER
The NUMBERs specify the number of bits of red, green, and blue
to be used when ReduceToDefaultColors() or DefaultErrorDiffuse()
are selected from the ImageProc Menu. These values determine a
set of default colors to be used for color quantization for the
ReduceToDefaultColors() and DefaultErrorDiffuse() methods.
R_NUMBER+G_NUMBER+B_NUMBER must be less than or equal to 8, and
each number must be greater than 0. The default is 2 2 2.
Tgif.MaxImportFilters: NUMBER
This specifies the maximum number of import filters.
ImportFilter0 through ImportFilterMax, where Max is NUMBER-1, in
X defaults are queried. The default is 0.
Tgif.ImportFilter#: FILTERSTRING
This specifies an import filter. FILTERSTRING has 3 parts
(separated by space characters). The first part is the name of
the filter. It must not contain a space character. The second
part contains semicolon-separated file extensions. The third
part is the actual filter command for converting the named
external file type to an X11 pixmap file. Please see the IMPORT
RASTER GRAPHICS section for details.
Tgif.ShowFileNameOnBrowse: [true,false]
If set to ‘‘true’’, file names will be shown when
BrowseXBitmap(), BrowseXPixmap(), or BrowseOther() are selected
from the File Menu. The default is true.
Tgif.HtmlFileExtension: STRING
The STRING specifies the file extension used when printing in
the HTML format. The default is "html".
Tgif.GenerateHtmlHref: [true,false]
If set to ‘‘true’’ and when printing in the HTML format, the
value of an href attribute is parsed. If the value references a
.obj file, it’s changed to have a HTML file extension. If it is
set to ‘‘false’’, no conversion will be performed. The default
is true.
Tgif.RotationIncrement: NUMBER
This specifies the initial rotation increment in degrees. The
default is 45.
Tgif.PSA4PaperSize: [true,false]
If set to ‘‘true’’ and A4 size paper is specified, the following
line is added to a PS/EPS/EPSI file (before "%%EndComments"):
%%DocumentPaperSizes: a4
The default is false.
Tgif.ShapeShadowSpec: STRING
The STRING specifies the initial horizontal and vertical offsets
of a shape shadow. If both values are zeroes, a shape is
created without a shadow. When creating a shape with a shadow,
background fill pattern (3rd pattern in the first column of the
Fill Menu) usually gives the best result. The default is "0,0".
Tgif.StretchableText: [true,false]
If set to ‘‘true’’, stretchable text mode is the initial mode.
The default is true.
Tgif.EditTextSize: NUMBER
This specifies the text size to be used in editing existing text
objects. NUMBER should either be 0 or a value between 4 and 34
(inclusive). If NUMBER is 0, the actual text size is used in
editing existing text objects. The value of the edit text size
can later be changed by selecting SetEditTextSize() from the
Properties Menu. The default is 0.
Tgif.IconPixmap: STRING
STRING specifies the path of an XBM or XPM file to be used as
tgif’s desktop icon. If STRING starts with a / character,
absolute path is used; otherwise, the actual path of the icon
file is $TGIFPATH/STRING where TGIFPATH is either defined using
the X defaults or an environment variable. This X default is
only enabled if Tgif.UseWMIcon is set to true. The default
value is ‘‘tgificon.xbm’’ (which is compiled into tgif).
Tgif.TmpFileMode: NUMBER (OCTAL)
This specifies file mode for temporary and exported files.
NUMBER must be an octal number. If NUMBER is 0, no attempt is
made to change the file mode. If this value is specified (even
if it’s 0), it overrides the PSFILE_MOD compile option. There
is no default value.
Tgif.TitledPinnedMenu: [true,false]
If set to ‘‘true’’, pinned menu will have a title bar and left
button is used for selecting menu items in a pinned menu. The
default is true.
Tgif.ColorFromXPixmap: STRING
STRING specifies the path of an XPM file to be used to load the
initial colors. If this X default is specified, the Tgif.Color#
X defaults are ignored.
Tgif.VectorWarpSoftness: NUMBER
This specifies the softness value used when VectorWarp() is
selected from the ImageProc Menu. VectorWarp() lets the user
warp pixels in an X11 pixmap object by specifying a vector. The
size of the affected area is controlled by this value, which
must lie between 1.0 and 4.0. The larger the value, the larger
the affected area. The default value is 2.0.
Tgif.ChangePropertiesOfAttrs: [true,false]
If set to ‘‘true’’, changing a property (such as font, font
size, color, etc.) of an object will change the property of the
attributes attached to the object in the same way. The default
is false.
Tgif.ShiftForDiagMouseMove: [true,false]
If set to ‘‘true’’, certain mouse movements are restricted to
multiple of 45 degrees. The default is true.
Tgif.UseRecentForDiagMouseMove: [true,false]
If set to ‘‘true’’, the object that is used as anchor for
measuring the moving distance is used as an anchor when objects.
This only works if Tgif.UseRecentDupDistance and
Tgif.ShiftForDiagMouseMove are both set to true, The default is
false.
Tgif.FlushColormapOnOpen: [true,false]
If set to ‘‘true’’, colormap is flushed the initial tgif colors
are reloaded when a new file is opened. The default is false.
Tgif.TransparentPattern: [true,false]
If set to ‘‘true’’, fill and pen patterns are transparent
initially. The default is false.
Tgif.DontReencode: STRING
For fonts that are not iso8859-1 encoded, non-ASCII portion of
the font (characters with bit 7 on) is by default reencoded as
if it were iso8859-1 encoded. If this is not desirable for a
font, reencoding can be bypassed by including the first part of
the PostScript font name of the font in STRING. Fields in
STRING are colon-separated. For example, if STRING is
"Times:Courier:Helvetica", PostScript fonts that begins with
"Times", "Courier", or "Helvetica" will not be reencoded.
(Please note that this X default overwrite the fonts specified
by -D_DONT_REENCODE at compile time.) Please also see the
POSTSCRIPT CHARACTER ENCODING FOR INTERNATINOAL CHARACTERS
section for an example.
Tgif.AdditionalDontReencode: STRING
Use this X default to augment Tgif.DontReencode (or the fonts
specified by -D_DONT_REENCODE at compile time). STRING here is
basically concatenated to the STRING specified by
Tgif.DontReencode (or the fonts specified by -D_DONT_REENCODE at
compile time).
Tgif.UnsignedInXBmExport: [true,false]
If set to ‘‘true’’, unsigned char will be used instead of char
in exported XBM files. The default is false.
Tgif.CommentInBitmapExport: [true,false]
If set to ‘‘true’’, a blank RCS Header comment will be prepended
to exported XBM and XPM files. The default is false.
Tgif.ShowFontSizeInPoints: [true,false]
If set to ‘‘true’’, font sizes are displayed in the unit of
point sizes. The default is false.
Tgif.DontCondensePSFile: [true,false]
By default, PS/EPS files generated by tgif are condensed. If
this X default is set to ‘‘true’’, tgif will not generate
condensed PS/EPS files. The default is true.
Tgif.StripCondensedPSComments: (obsolete)
This X default is obsolete in tgif-4.0.11 because it turns out
that it’s not always okay to strip PS comments (it should always
be set to false).
Tgif.PdfFileExtension: STRING
The STRING specifies the file extension used when printing in
the PDF format. The default is "pdf".
Tgif.PsToPdf: STRING
The STRING specifies a command used to convert a PS file to a
PDF file. The STRING must contain 2 %s substrings to be
replaced by the full path name of the PS file and the full path
name of the PDF file. The default is "ps2pdf %s %s". (If you
like to use "epstopdf", you can try setting this to "epstopdf %s
--outfile=%s".)
Tgif.3DLook: [true,false]
If set to ‘‘false’’, no 3D decoration of windows and buttons
will be used. The default is true.
Tgif.XpmDeckToGifAnim: STRING
The STRING specifies a command used to convert a list of GIF
file to a GIF animation file. The STRING must not contain any
%s substring. The default is "gifsicle -lforever --delay 10".
Gifsicle’s home page is <URL:http://www.lcdf.org/gifsicle/>.
One can also set this X default to "whirlgif -loop -time 10".
Whirlgif’s home page is
<URL:http://www.msg.net/utility/whirlgif/>.
Tgif.GifAnimExplode: STRING
The STRING specifies a command used to explode an animated GIF
file into its constituent GIF files. The STRING must not
contain any %s substring. The constituent GIF files must have
the following file names. If the animated GIF file is named
"foo.gif", the constituent GIF files must be named "foo.gif.0",
"foo.gif.1", etc. The default is "gifsicle -eU". Gifsicle’s
home page is <URL:http://www.lcdf.org/gifsicle/>.
Tgif.Btn3PopupModeMenu: [true,false]
If set to ‘‘true’’, pressing the right mouse button in the
canvas window will generate the Mode Menu. The default is
false.
Tgif.ScriptFraction: NUMBER
This specifies the size of the super/subscript relative to the
size of the normal text. The value must be between 0.2 and 0.8.
The default value is 0.6.
Tgif.DeleteNextCharWithDelKey: [true,false]
If set to ‘‘true’’, pressing the Delete key on the keyboard will
delete the character to the right of the cursor in text mode.
The default is true.
Tgif.SquareDoubleByteFonts: FONT_SPEC1 FONT_SPEC2 ...
Starting with version 4.0 of tgif, double-byte fonts are
supported. But only double-fonts where every character has the
same width and height are supported. Please see the SQUARE
DOUBLE FONTS section for details.
Tgif.DefaultSingleByteFont: STRING
Using input methods (specified by the Tgif.DoubleByteInputMethod
X default below), one can mix english (single-byte) substrings
within a double-byte string. The font to use for the english
substring is specified by this X default. The default is Times.
Tgif.@@@ShowFontChar: OCTAL STRING
OCTAL STRING specifies a double-byte octal character to be used
to represent a double-byte font in the Choice Window when the
font is selected. @@@ should be replaced by the name of the
double-byte font. Please see the SQUARE DOUBLE FONTS section
for examples.
Tgif.DoubleByteInputMethod: STRING
This specifies the input method for double-byte fonts.
Currently, the following values are supported: "xcin",
"chinput", "kinput2", "xim", and "tgtwb5". If you are using
xcin-2.5 or above, please use "xim" instead of "xcin". The
"tgtwb5" input method is built into tgif and can take an
optional parameter (by appending ",FONTNAME" after "tgtwb5")
specifying a Big5 X font name to be used in selecting a
character. If FONTNAME is not specified, "-taipei-fixed-medium-
r-normal--16-150-75-75-c-160-big5-0" will be used. Please see
the SQUARE DOUBLE BYTE FONTS section for details.
Tgif.UseNKF: [true,false]
If set to ‘‘true’’, Network Kanji Filter (NKF) will be used.
The default is false.
Tgif.CopyAndPasteJIS: [true,false]
If set to ‘‘true’’, copying and pasting text strings will go
through additional JIS to EUC conversion. The default is false.
Tgif.PreeditType: [overthespot,root]
If set to ‘‘overthespot’’, over-the-spot preediting will be
used. The default is root.
Tgif.Lang: STRING
This specifies the locale. The environment variables LANG can
override this setting.
Tgif.Modifiers: STRING
This specifies the locale modifiers. The environment variables
XMODIFIERS can override this setting.
Tgif.ConvSelection: STRING
This specifies the name of the selection used in converting
kinput2 strings. The default value is _JAPANESE_CONVERSION.
Tgif.VisibleGridInSlideShow: STRING
If set to ‘‘true’’, grids will be visible in slideshow mode.
The default is false.
Tgif.SmoothScrollingCanvas: [off,jump,smooth]
If set to ‘‘smooth’’, scrolling the main canvas window will be
smooth. However, there may be a delay when scrolling starts to
cache the image. If set to ‘‘jump’’, scrolling the main canvas
window will be jumpy. If set to ‘‘off’’, scrolling the main
canvas window will not change the canvas until the mouse button
is released. The default is jump.
Tgif.LightGrayColor: COLORSTRING
This specifies the color to be used for the background of
buttons, menus, etc. The default is gray75.
Tgif.DarkGrayColor: COLORSTRING
This specifies the color to be used for the shadow of buttons,
menus, etc. The default is gray50.
Tgif.DefaultObjectBackground: COLORSTRING
This specifies the color to be used for the background of
objects. By default, the default background color is used.
Tgif.UseImagePixelsForTrueColorExport: [true,false]
If set to ‘‘true’’, the color table of an exported XPM/GIF file
will be obtained from the actual image pixels for a TrueColor
visual. The default is false.
Tgif.DialogboxUse3DBorder: [true,false]
If set to ‘‘false’’, dialogboxes will not have 3D borders. This
should be used with X servers such as X-Win32 because
dialogboxes already have 3D borders. The default is true.
Tgif.MenuFontSet: STRING
This X default is only used if tgif is compiled with the
ENABLE_NLS compiler option. The STRING specifies a list of
fonts to be used in menus. STRING can be ‘‘none’’ to indicate
not to use menu font set. The default is "-*-helvetica-medium-
r-normal--12-*-*-*-*-*-*-*,-*-*-medium-r-*--12-*-*-*-*-*-*-*".
Tgif.MsgFontSet: STRING
This X default is only used if tgif is compiled with the
ENABLE_NLS compiler option. The STRING specifies a list of
fonts to be used in status messages. STRING can be ‘‘none’’ to
indicate not to use message font set. The default is
"-*-helvetica-medium-r-normal--12-*-*-*-*-*-*-*,-*-*-medium-
r-*--12-*-*-*-*-*-*-*".
Tgif.BoldMsgFontSet: STRING
This X default is only used if tgif is compiled with the
ENABLE_NLS compiler option. The STRING specifies a list of
fonts to be used in messageboxes. STRING can be ‘‘none’’ to
indicate not to use bold message font set. The default is
"-*-helvetica-bold-r-normal--12-*-*-*-*-*-*-*,-*-*-medium-
r-*--12-*-*-*-*-*-*-*".
Tgif.BoldMsgFontDoubleByte: [true,false]
This X default is only used if tgif is compiled with the
ENABLE_NLS compiler option. This X default should be set to
‘‘true’’ if the strings used in messageboxes may contain double-
byte characters. The default is false.
Tgif.LocaleDir: STRING
This X default is only used if tgif is compiled with the
ENABLE_NLS compiler option. The STRING specifies a full path
name of a locale directory.
Tgif.PsRegMarksInTiledPageMode: [true,false]
If set to ‘‘true’’, small crosshairs will be drawn at the
corners defining the clipping regions when printing/exporting
PS/EPS files in the tiled page mode. The greyness of the cross
hairs will be determined by the Tgif.PsRegMarksGray X default.
The default is false.
Tgif.PsRegMarksGray: NUMBER
This specifies the greyness of the crosshairs used when
Tgif.PsRegMarksInTiledPageMode is set to true. The default
value is 0.95
Tgif.PSFontAliases: PSFONTALIAS_SPEC1 PSFONTALIAS_SPEC2 ...
Font aliases can be used to represent different encoding, etc.
Please see the POSTSCRIPT CHARACTER ENCODING FOR INTERNATINOAL
CHARACTERS section for details.
Tgif.DomainInIni: [true,false]
If set to ‘‘true’’, domain information will be loaded from the
~/.Tgif/domain.ini file and all the menu items in the Domain
submenu of the File Menu will be enabled. The default is false.
Tgif.UndoRedoRestoreDrawingMode: [true,false]
If set to ‘‘true’’, the drawing mode just before an undo/redo
operation will be restored after undo/redo. The default is
true.
Tgif.MenuRowsBeforeScroll: NUMBER
This specifies the maximum number of rows in a user-specifiable
text menu (such as the Font Menu and the FontSize Menu) before a
vertical scrollbar is automatically used. The default value is
20.
Tgif.MenuColsBeforeScroll: NUMBER
This specifies the maximum number of rows in a user-specifiable
bitmap menu (such as the Color Menu) before a horizontal
scrollbar is automatically used. The default value is 26.
Tgif.PngToXpm: STRING
The STRING specifies a command used to convert a PNG file to an
XPM file. The STRING must contain a %s substring to be replaced
by the full path name of the PNG file. The default is "pngtopnm
%s | pnmdepth 255 | ppmquant 222 | ppmtoxpm".
Tgif.JpegToXpm: STRING
The STRING specifies a command used to convert a JPEG file to an
XPM file. The STRING must contain a %s substring to be replaced
by the full path name of the JPEG file. The default is "djpeg
-gif -color 222 %s | giftopnm | ppmtoxpm".
Tgif.PbmToXbm: STRING
The STRING specifies a command used to convert a PBM file to an
XBM file. The STRING must contain a %s substring to be replaced
by the full path name of the PBM file. The default is "pbmtoxbm
%s".
Tgif.PgmToXpm: STRING
The STRING specifies a command used to convert a PGM file to an
XPM file. The STRING must contain a %s substring to be replaced
by the full path name of the PGM file. The default is "ppmtoxpm
%s".
Tgif.PpmToXpm: STRING
The STRING specifies a command used to convert a PPM file to an
XPM file. The STRING must contain a %s substring to be replaced
by the full path name of the PPM file. The default is "ppmquant
222 %s | ppmtoxpm".
Tgif.XpmToPng: STRING
The STRING specifies a command used to convert an XPM file to a
PNG file. The STRING must contain a %s substring to be replaced
by the full path name of the XPM file. The default is "xpmtoppm
%s | ppmtopng".
Tgif.PngFileExtension: STRING
The STRING specifies the file extension for a PNG file. The
default is "png" (lower case).
Tgif.XpmToJpeg: STRING
The STRING specifies a command used to convert an XPM file to a
JPEG file. The STRING must contain a %s substring to be
replaced by the full path name of the XPM file. The default is
"xpmtoppm %s | cjpeg".
Tgif.JpegFileExtension: STRING
The STRING specifies the file extension for a JPEG file. The
default is "jpg" (lower case).
Tgif.ProducedBy: STRING
When printing/exporting PS/EPS files, STRING will appear in a
%%ProducedBy line in a exported PS/EPS file. Please include
your name and e-mail address in STRING. The default is
"(unknown)".
Tgif.Editor: STRING
STRING specifies a text editor to use for editing attributes.
The STRING must contain two %s substrings to be replaced by the
window title and the full path name of the text file. For
example, you can use "xemacs -title ’%s’ ’%s’". The default is
"xterm -title ’%s’ -e vi ’%s’".
Tgif.GoHyperSpaceInSlideShow: [true,false]
If set to ‘‘true’’, hyperspace mode will be entered when tgif
enters the slideshow mode. The default is false.
Tgif.LineWidthIndexInSlideShow: NUMBER
This specifies the line width index to use when tgif is in the
slideshow mode. The default value is 4.
Tgif.MaxRecentFiles: NUMBER
This specifies the maximum number of files to remember in the
recently used file list. The default value is 10.
Tgif.ResetOriginOnAdvancePage: [true,false]
If set to ‘‘true’’, tgif will scroll to the left-top corner of
the page when pages are advanced. The default is false.
Tgif.UseMeasureTooltip: [true,false]
If set to ‘‘true’’, the location of the cursor and the width and
height of the object begin drawn/dragged/stretched will be shown
in a tooltip window. This X default only takes effect if
Tgif.ShowMeasurement is true. The default is false.
Tgif.MeasureTooltipXFollowMouse: [true,false]
If set to ‘‘true’’, the X position of the measurement tooptip
will follow the mouse. The default is false.
Tgif.MeasureTooltipYFollowMouse: [true,false]
If set to ‘‘true’’, the Y position of the measurement tooptip
will follow the mouse. The default is false.
Tgif.MeasureTooltipHorizontalPosition: [left,center,right]
Fix the X position of the measurement tooltip to the left,
center, or right. This X default only takes effect if
Tgif.MeasureTooltipXFollowMouse is false. The default is left.
Tgif.MeasureTooltipVerticalPosition: [top,middle,bottom]
Fix the Y position of the measurement tooltip to the top,
middle, or bottom. This X default only takes effect if
Tgif.MeasureTooltipYFollowMouse is false. The default is top.
Tgif.MeasureTooltipVerbose: [true,false]
If set to ‘‘true’’, additional information about the positions
and sizes of objects will be displayed in the tooltip window.
The default is false.
Tgif.NoMinWinSize: [true,false]
If set to ‘‘false’’, tgif will have a minimum window size so
that the whole panel window is alway visible. The problem with
this setting is that some window manager will show the wrong
window size when you resize the window. This setting is left
for compatibility reasons. If set to ‘‘true’’, a side effect is
that the menubar will no longer automatically wraps around when
Tgif.MinimalMenubar is set to true. The default is true.
Tgif.AutoWrapMenubar: [true,false]
If set to ‘‘true’’, the menubar will automatically wrap around.
If Tgif.MinimalMenubar is set to false, menubar will always wrap
around automatically. The default is false.
Tgif.AutoEPSPreviewBitmap: [true,false]
If set to ‘‘true’’, when importing a PS/EPS file, tgif will
automatically generate a preview bitmap if the file does not
already contain one. The default is false.
Tgif.PsToXbm: STRING
STRING specifies a command used to convert a PS file to a XBM
file. The STRING must contain a single %s substrings to be
replaced by the full path name of the PS file. Please note that
the above command usually generates a bitmap that’s much larger
than image in the file. Tgif automatically trims out the blank
space similar to the way pbmtoepsi works. The default is "gs -q
-dNOPAUSE -sDEVICE=pbm -sOutputFile=- -- "%s" | pbmtoxbm".
Tgif.TmpDirInHomeDir: [true,false]
If set to ‘‘true’’, tgif will use the $HOME/.Tgif directory as
the temporary directory (unless the Tgif.TmpDir X default below
is used) and the compiler option -DTMP_DIR is ignored. The
default is false if the -D_TMP_DIR_IN_HOME_DIR compiler option
is used. The default is true if the -D_TMP_DIR_IN_HOME_DIR
compiler option is not used.
Tgif.TmpDir: STRING
STRING specifies a directory to be used as the temporary
directory. The use of this X default is discouraged, especially
if tgif is compiled with -DUSE_XT_INITIALIZE and a X resource
file found in the directory search path specified by the
environment variable $XAPPLRESDIR is used. By default, tgif
uses /tmp as the temporary directory.
Tgif.ThumbnailGeometry: WIDTHxHEIGHT
This X default specifies the geometry of thumbnails. The
default is 160x120.
Tgif.ThumbnailPadding: NUMBER
This specifies the padding (in pixels) for thumbnail images.
The default value is 8.
Tgif.ThumbnailXGap: NUMBER
This specifies the horizontal gap (in pixels) for thumbnail
images. The default value is 16.
Tgif.ThumbnailYGap: NUMBER
This specifies the vertical gap (in pixels) for thumbnail
images. The default value is 0.
Tgif.ThumbnailX: NUMBER
This specifies the starting x location (in pixels) for thumbnail
images. The default value is 32.
Tgif.ThumbnailY: NUMBER
This specifies the starting y location (in pixels) for thumbnail
images. The default value is 32.
Tgif.ShowWireSignalName: [true,false]
If set to ‘‘false’’, when connecting ports, tgif will
automatically place the signal name and hide it. Otherwise, the
user will be prompted to place the signal name and it will be
visible. The default is true.
Tgif.LandscapePdfSetPageDevice: (obsolete)
This X default is obsolete in tgif-4.1.42 because the name is
misleading. Please see Tgif.PdfSetPageDevice below.
Tgif.PdfSetPageDevice: [true,false]
If set to ‘‘true’’, when exporting PDF (or PS) files, tgif will
use PostScript "setpagedevice" command to specify the paper size
in the generated PostScript file before calling ps2pdf(1) (if
exporting in PDF format). This should not be necessary (and is
considered a bug in ps2pdf). In the future, this X default can
be used to turn off the generation of the "setpagedevice"
command when ps2pdf can handle landscape PostScript files
correctly.
Tgif.DeleteCmdAsCut: [true,false]
If set to ‘‘true’’, when Delete is selected from the Edit Menu
or if <Cntrl>x is pressed, Cut will be executed instead of
Delete. Pressing the <DEL> key on the keyboard will still
perform a regular Delete. The default is false.
Tgif.EnableMouseWheel: [true,false] If set to ‘‘false’’, Button4
and Button5 mouse wheel scrolling events will be ignored. The
default is true. Tgif.Btn2PopupMainMenu: [true,false] If set to
‘‘false’’, Button2 events will not bring up the Main Menu in the
canvas window. The default is true.
Tgif.NoChoiceWindow: [true,false]
If set to ‘‘true’’, no Choice and Message Windows will be shown
initially. The default is false.
Tgif.UseXPmVersion1ForXPmDeck: [true,false]
The setting of this X default should depend on the setting of
the Tgif.XpmDeckToGifAnim X default above. If set to ‘‘true’’,
XPM1 file is generated when a deck of X11 pixmap objects is
being converted to a GIF animation file regardless of the
setting of the Tgif.XPmOutputVersion X default. The default is
true.
Tgif.SlideShowWindowOffsets: X_OFFSET,Y_OFFSET
The numbers specify the number of pixels to adjust for the
slideshow mode. If only one value is given, both X and Y
offsets are set to the same value. The default values are all
0’s.
Tgif.SlideShowBorderColor: COLORSTRING
This specifies the color to be used for the area outside of the
paper boundary in slideshow mode. By default, the color of the
border is the same as the background color.
Tgif.ConvertToBezierSegments: NUMBER
This specifies the number of segments used in converting a
polyline/spline object to a Bezier curve. The default value is
50.
Tgif.TickMarkSize: NUMBER
This specifies the size of a tick mark to be used when tick
marks are added at a vertex of a polyline/polygon/spline. The
default value is 8.
Tgif.NoModeWindow: [true,false]
If set to ‘‘true’’, no Mode Window will be shown initially. The
default is false.
Tgif.MakeUnsavableInSlideShow: [true,false]
If set to ‘‘true’’, the current file will be made unsavable when
slideshow mode is entered. (If the current file contains auto
page numbering objects, the file will be made unsavable
regardless of the setting of this X default.) The default is
false.
Tgif.SingleByteInputMethod: STRING
This specifies the input method for single-byte fonts.
Currently, only "xim" is supported.
Tgif.IgnoreSlideShowOfffsetsInFile: [true,false]
If set to ‘‘false’’, the slideshow offsets stored in a file will
override the Tgif.SlideShowWindowOffsets setting. The default
is true.
Tgif.ItalicMsgFont: STRING
The STRING specifies a italic font to be used in some buttons.
If this X default is not specified but Tgif.MenuFont is
specified, this will take on the value of Tgif.MenuFont. If
this X default and Tgif.MenuFont are not specified, the default
font is used in italic messages.
Tgif.ItalicMsgFontSet: STRING
This X default is only used if tgif is compiled with the
ENABLE_NLS compiler option. The STRING specifies a list of
fonts to be used in messageboxes. STRING can be ‘‘none’’ to
indicate not to use italic message font set. The default is
"-*-helvetica-medium-o-normal--12-*-*-*-*-*-*-*,-*-*-medium-
r-*--12-*-*-*-*-*-*-*".
Tgif.BoldItalicMsgFont: STRING
The STRING specifies a bold italic font to be used in some text.
If this X default is not specified but Tgif.MenuFont is
specified, this will take on the value of Tgif.MenuFont. If
this X default and Tgif.MenuFont are not specified, the default
font is used in bold italic messages.
Tgif.BoldItalicMsgFontSet: STRING
This X default is only used if tgif is compiled with the
ENABLE_NLS compiler option. The STRING specifies a list of
fonts to be used in some text. STRING can be ‘‘none’’ to
indicate not to use bold italic message font set. The default
is "-*-helvetica-bold-o-normal--12-*-*-*-*-*-*-*,-*-*-medium-
r-*--12-*-*-*-*-*-*-*".
Tgif.ExternalPsToEpsi: [true,false]
If set to ‘‘true’’, the execution of the pstoepsi() internal
command will simply invoke pstoepsi externally. The default is
false.
Tgif.GsPath: STRING
The STRING specifies a full path name of the gs (ghostscript)
program. The default is "gs" (which implies that the "gs"
excutable is in your PATH).
Tgif.CompoundObjWithTextStretchableForPSE: [true,false]
If set to ‘‘false’’, when executing the Precise Scale Everything
command, a compound object will not be stretched if it contains
a text subobject. This X default only has effect if tgif is in
the non-stretchable text mode. (If tgif is in the stretchable
text mode, this X default is ignored.) The default is false.
Tgif.HideWindowsInSlideShow: [true,false]
If set to ‘‘false’’, tgif will keep all windows visible in
slideshow mode. Otherwise, only the canvas window will be
visible in slideshow mode. The default is true.
Tgif.PSDistillerNoImageCompress: [true,false]
If set to ‘‘true’’, tgif will generate PostScript code so that
images in a generated PostScript file will not be compressed by
a distiller program such as ps2pdf. The default is false.
Tgif.AdditionalPSSetup: STRING
If specified, the PostScript line specified by STRING is
inserted at the end of PostScript file setup (right before
%%EndSetup). This option should only be used if one is very
familiar with PostScript. Here is an example to ask distiller
programs not to compress bitmap images:
Tgif.AdditionalPSSetup: \n\
systemdict /setdistillerparams known \n\
{ << /AutoFilterGrayImages false \n\
/AutoFilterColorImages false \n\
/ColorImageFilter /FlateEncode \n\
/GrayImageFilter /FlateEncode \n\
>> setdistillerparams } if
Tgif.PSFontCharSubs: FONTSUB_SPEC1 FONTSUB_SPEC2 ...
The format of FONTSUB_SPEC is FONTNAME=TOKENNAME where FONTNAME
is the name of a PostScript font and TOKENNAME is the name of
the extension for the Tgif.PSCharSubs_TOKENNAME X default. For
PostScript font names that begins with a string that matches a
FONTNAME part of a FONTSUB_SPEC, tgif will read the
Tgif.PSCharSubs_TOKENNAME X default to determine which
characters will be substituted.
For fonts that are not iso8859-1 encoded, non-ASCII portion of
the font (characters with bit 7 on) is by default reencoded as
if it were iso8859-1 encoded when PS output is generated. If
this is not desired, different named PS characters can be
substituted for characters with bit 7 on. Please also see the
POSTSCRIPT CHARACTER ENCODING FOR INTERNATINOAL CHARACTERS
section for an example.
Tgif.PSCharSubs_TOKENNAME: PSCHARSUBS_SPEC1 PSCHARSUBS_SPEC2 ...
TOKENNAME must match a FONTSUB_SPEC in the
Tgif.PSFontNeedCharSubs X default. The format for
PSCHARSUBS_SPEC is OLDCHARCODE/NEWCHARNAME where OLDCHARCODE is
a character code in octal format and NEWCHARNAME is a PostScript
character name to use. For more information, please see the
POSTSCRIPT CHARACTER ENCODING FOR INTERNATINOAL CHARACTERS
section.
Tgif.DrawTextFuncKey_F#: INTERNAL COMMAND LIST
This specifies the correspondence between a function key and a
list of internal commands. When function key F# is pressed when
tgif is in the text drawing mode, the corresponding list of
internal commands is executed. Tgif only recognizes function
keys F1 through F12.
Tgif.PasteFromXSelectionOnly: [true,false]
If set to ‘‘false’’, if tgif has failed to perform a paste via
the X Selections mechanism, it will attempt the old style paste
(directly fetch bytes from the X server). This is mainly used
for with X servers. The default is true.
Tgif.PasteFromSelectionTimeout: NUMBER
This specifies the number of seconds for a paste operation to
timeout. The default value is 10.
Tgif.LengthLimit256InInsertChar: [true,false]
If set to ‘‘true’’, the maximum number of characters per line of
text is set at 256. Additional characters are ignored. The
default is false.
Tgif.JpegToPpm6: STRING
The STRING specifies a command used to convert a JPEG file to a
PPM file in the P6 format. The STRING must contain a %s
substring to be replaced by the full path name of the JPEG file.
The default is "djpeg -ppm %s".
Tgif.ObjectShadowOffsets: X_OFFSET,Y_OFFSET
The numbers specify the number of pixels to be offseted when
creating a generic object shadow. If only one value is given,
both X and Y offsets are set to the same value. The default
values are all 2’s.
Tgif.ObjectShadowColor: COLORSTRING
This specifies the color to be used for generic object shadow.
The default value is "#c0c0c0".
Tgif.IgnoreObjectShadowInfoInFile: [true,false]
If set to ‘‘false’’, the generic object shadow information
stored in a file will override the Tgif.ObjectShadowOffsets and
Tgif.ObjectShadowColor settings. The default is true.
ENVIRONMENT VARIABLE
TGIFPATH
This environment variable should be set such that the files,
mentioned in the FILES section below, can be found.
TGIFICON
This environment variable should be set to the name of the
object file to be displayed when tgif is iconified. By default,
it is set to ‘‘tgificon’’. If it starts with a / character,
absolute path is used; otherwise, the icon file is assumed to be
$TGIFPATH/$TGIFICON.
TGIF_[Domain]
Obsoleted.
FILES
$TGIFPATH/tgificon.obj contains the default tgif icon.
$TGIFPATH/keys.obj contains a summary of the non-alphanumeric key
bindings.
PROLOG/C TESTDRIVE
In the tgif distribution, there are three Prolog files which illustrate
a simple Prolog driver. tgif.pl contains predicates for parsing tgif
files (both .obj and .sym). frontend.pl contains predicates for
talking to Prolog engines, such as that of Quintus and SISCtus, through
the foreign function interface. To use frontend.pl, frontend11.o needs
to be built (which requires the frontend11.o entry to be uncommented
from the makefiles). Finally, testdrive.pl contains a program which
will print out the ID files of all objects in the current drawing, if
tgif is escaped with the Solve() (or #s) command. This is also a good
way of finding out the structure of a tgif file (especially because the
structure is not documented due to the complexity introduced to keep
tgif compatible with files created by older versions).
A very simple C driver, testdrive.c, is also provided with the tgif
distribution which perform the same function as the Prolog driver. The
extra code present in this file (and not present in tgif.c) is used to
illustrate how the in-memory objects and attributes can be traversed
and how new objects can be created and manipulated.
SEE ALSO
latex(1L), lpr(1), ghostscript(1), env(1), X(1), dvips(1), csh(1),
pbmplus(1), netpbm(1), djpeg(1), bitmap(1), XPM(1), netpbm(1),
xfontsel(1), xlsfonts(1), xgrabsc(1), xloadimage(1), xsnap(1), sxpm(1),
xv(1), pstoepsi(1), Mosaic(1), bggen(1), rand(3C), ps2pdf(1)
IDIOSYNCRASIES
When any of the ‘‘escape to driver’’ commands are (accidentally)
executed, the current content of the drawing is saved into
‘‘tmpmodel.obj’’ if the drawing indicates that it is a .obj file; then
tgif escapes to the driver and returns right away. If the drawing
indicates that it is a .sym file, then the content is saved into
‘‘tmpmodel.sym’’, but tgif does not return to the driver.
The paste operation works on a cut buffer generated by tgif or by non-
tgif tools (such as xterm). If the cut buffer is not generated by
tgif, its content is treated as a collection of ASCII character
strings, which is inserted into the current drawing as a text object
(current settings for text objects are used to create the text object).
If the cut buffer is generated by tgif, then all the current settings
are ignored.
The font sizes are the screen font sizes (which correspond to the X
fonts that are used to draw the text on the screen). They appear
smaller on the printout. When a 24 point text is printed, it would
correspond to about a 13.5 point PostScript text. This is because tgif
treats 128 pixels as an inch, and PostScript treats 72 points as an
inch.
Because characters supported by X11 and PostScript are different, not
all the characters, especially in the range 128 to 255 (or \200 to
\377), which are supported by X11, but are not accepted by tgif.
Furthermore, in order to print the supported subset or these
characters, character codes must be re-encoded. Therefore, if one
would like to hack tgif to support other personalized fonts, one should
be careful about the re-encoding mechanism.
The grids are not absolute; they are specified as screen pixels, and
they scale with the current zoom. For example, if the grid is set at
16 pixels at maximum zoom, and if the user zooms out once, objects can
be drawn, moved, or stretched at 16 screen pixel increments, but this
corresponds to 32 pixels in the real coordinate system.
If the vertical text spacing is set to negative values, highlighted
text will look a little strange due to XOR operations. If the vertical
text spacing is set to be greater than 100 or less than -100, the panel
window will not be cleared properly; to clear the panel window, the
user may have to close the tgif window and then open it again.
As described in the TGIF SUBWINDOWS section, in constrained move mode,
if both endpoints of a not-selected polyline lie inside the object
being moved, then the whole polyline is moved. This may look strange
sometimes because, for example, if one starts with a line segment
pointing to an object, just moving the object will caused the line
segment to be ‘‘stretched’’; however, if one eventually moves the
object so that the other endpoint is also inside the object, any future
movement of the object will cause the whole line segment to move
(instead of just moving the original endpoint). The moving of the
vertex which is the neighbor of a moved endpoint may also look strange
at times. At this point, one should switch to the unconstrained move
mode.
Another idiosyncrasy with respect to the constrained move is that right
after duplicating an object, the constrained move is disabled
temporarily because it is assumed that at this point the user would
want to move the new object to a desirable position, and only after
this new object is ‘‘settled down’’, the constrained move will be re-
enabled. Settling down is signified by doing something other than
moving the new object.
Locked objects can be deleted.
Under the Edit Menu, PasteFromFile() reads a file into the drawing.
Pasting from a file is different from the normal pasting operation
where copying is performed in something like xterm because tabs are
automatically converted to spaces. Tabs are ignored when pasting from
a file.
When printing a multipage drawing, all pages (even the ones that
contains no objects) will be printed. Using the PrintOnePage() command
under the Page Menu one can print the selected page (in stacked page
layout mode, this is the current page; in tiled page layout mode, the
user is prompted to select a visible page).
Tgif can be setup to use its own icon window (the Tgif.NoTgifIcon and
the Tgif.UseWMIconPixmap X defaults must both be set to false).
However, it may confuse certain window managers. So, if the effect is
undesirable, one can set the Tgif.UseWMIconPixmap X defaults to true.
BUGS
There seems to be a problem with printing Courier fonts with a non-
solid pen on the Apple LaserWriter. (Printing single character does
seem to work fine.) As pointed out by the PostScript reference manual,
Courier is a ‘‘stroked font’’, and it is usually ‘‘difficult’’ to
construct character paths for such types of fonts. However, Courier
fonts work fine with ghostscript(1) and dxpsview. It’s not clear how
this problem can be fixed. The author recommends avoiding Courier
fonts when printing in color if a non-solid pen is desired.
Arcs with arrow tips don’t look very sharp (the tip is not pointed as
in open-splines with arrow tips).
At high magnifications, stretching arcs may cause anomalous behavior
due to round off errors.
When page reduction/magnification is not set at 100%, the markings in
the Ruler Windows do not correspond to real measurements. behavior due
to round off errors.
Copying/pasting large objects might not work because tgif does not use
the ‘‘selection’’ mechanism (yet).
If and when tgif crashes, it will try to save the current content of
the drawing in a file called ‘‘EmergencySave.obj’’ (or
‘‘EmergencySave.sym’’ if the current drawing specifies a symbol
object). Often, the drawing can be restored by loading the
‘‘EmergencySave.obj’’ file. Nevertheless, if the cause of the crash is
that some objects are corrupted (due to programming bugs), then the
‘‘EmergencySave.obj’’ file may also be corrupted.
When launching an application, if the command does not end with the ’&’
character and the command does not terminate, tgif also hangs. In this
case, kill(1) should be used to send HUP signal to the tgif process if
one wants to save the content of tgif in ‘‘EmergencySave.obj’’.
The file exec.c may not compile properly on AIX machines. One might
have to add -D_BSD to the DEFINES in either the Imakefile or
Makefile.noimake.
COPYRIGHT
Please see the ‘‘Copyright’’ file for details on the copyrights.
PostScript is a trademark of Adobe Systems Incorporated.
STATUS
The current status of tgif can be obtained from tgif’s World-Wide-Web
home page at <URL:http://bourbon.usc.edu/tgif/>.
AUTHOR
William Chia-Wei Cheng (bill.cheng@acm.org)
<URL:http://merlot.usc.edu/william/usc/>
REFERENCES
[1] ‘‘A Beginners Guild to HTML’’,
<URL:http://www.ncsa.uiuc.edu/General/Internet/WWW/HTMLPrimer.html>.
[2] ‘‘CGI - Common Gateway Interface’’,
<URL:http://www.w3.org/CGI/overview.html>.
[3] ‘‘NCSA Imagemap’’,
<URL:http://hoohoo.ncsa.uiuc.edu/docs/tutorials/imagemapping.html>.
[4] ‘‘CERN Clickable Image’’,
<URL:http://www.w3.org/hypertext/WWW/Daemon/User/CGI/HTImageDoc.html>.