NAME
tixControl - Create and manipulate tixControl widgets
SYNOPSIS
tixControl pathName ?options?
SUPER-CLASS
The TixControl class is derived from the TixLabelWidget class and
inherits all the commands, options and subwidgets of its super-class.
STANDARD OPTIONS
The Control widget supports all the standard options of a frame widget.
See the options(n) manual entry for details on the standard options.
WIDGET-SPECIFIC OPTIONS
Specifies whether the Control widget should allow the empty string as a
valid input. Specifies whether the Control widget should have
autorepeat behavior. If set to be "true", the value of the Control
widget will be automatically incremented or decremented when the user
holds down the mouse button over the arrow buttons. Only values "true"
and "false" will be recognized. Specifies the command to be called
when the -value option of the Control widget is changed. The command
will be called with one arguments -- the new value of the Control
widget. Specifies a TCL command to be called when the the user presses
the down-arrow button subwidget. This command is called with one
parameter -- the current -value of this Control widget. This command is
to decrement this value by one step, according to its own definition of
"decrement", and return the decremented value, which will be stored in
the -value of this Control widget. A boolean value indicating whether
callbacks should be disabled. When set to true, the TCL command
specified by the -command option is not executed when the -value of the
Control widget changes. The foreground color to use for of the entry
subwidget when the Control widget is disabled. Specifies a TCL command
to be called when the the user presses the up-arrow button subwidget.
This command is called with one parameter -- the current -value of this
Control widget. This command is to increment this value by one step,
according to its own definition of "increment", and return the
incremented value, which will be stored in the -value of this Control
widget. Specifies how long the Control widget should wait initially
before it starts to automatically increment or decrement its value in
the autorepeat mode. In milliseconds. A Boolean value specifying
whether only integer numbers are accepted. Specifies the string to
display as the label of this Control widget. Specifies where the label
should be displayed relative to the entry subwidget. Valid options are:
top, left, right, bottom, none or acrosstop.
Name: max
Class: Max
Switch: -max
Alias: -ulimit
Specifies the upper limit of the value of the Control widget.
When set to empty string, the Control widget has no upper limit.
Name: min
Class: Min
Switch: -min
Alias: -llimit
Specifies the lower limit of the value of the Control
widget.When set to empty string, the Control widget has no lower
limit. Specifies how often the value of the Control widget
should be incremented or decremented when it is in the
autorepeat mode. In milliseconds. Specifies how the Control
widget should react to <KeyPress> events. When set to
"immediate", any user keyboard inputs will immediately change
the -value option. When set to "normal", the user keyboard
inputs will be copied to the -value option only if the <Return>
key is pressed or the keyboard focus is changed. The use of the
immediate mode is discouraged. For effective use of the Control
widget, one should use the normal mode together with the update
widget command (see below). Specifies the whether the Control
widget is normal or disabled. Only the values "normal" and
"disabled" are recognized. Specifies by how much the value of
the Control widget should be incremented or decrmented when the
user press the arrow buttons. Specifies a TCL command to be
called when the -value of the Control widget is about to change.
This command is called with one parameter -- the new -value
entered by the user. This command is to validate this new value
by returning a value it deems valid. Specifies the value of the
Control widget. Specifies the global variable in which the
value of the Control widget should be stored. The value of the
Control widget will be automatically updated when this variable
is changed.
SUBWIDGETS
Name: decr
Class: Button
The down arrow button.
Name: entry
Class: Entry
The entry that shows the value of this Control widget.
Name: incr
Class: Button
The up arrow button.
Name: label
Class: Label
The label subwidget.
DESCRIPTION
The tixControl command creates a new window (given by the pathName
argument) and makes it into a Control widget. Additional options,
described above, may be specified on the command line or in the option
database to configure aspects of the Control widget such as its cursor
and relief.
The Control widget is also known as the SpinBox widget. It is
generally used to control a value. The user can adjust the value by
pressing the two arrow buttons or by entering the value directly into
the entry. The new value will be checked against the user-defined upper
and lower limits.
WIDGET COMMANDS
The tixControl command creates a new Tcl command whose name is the same
as the path name of the Control widget’s window. This command may be
used to invoke various operations on the widget. It has the following
general form:
pathName option ?arg arg ...?
PathName is the name of the command, which is the same as the Control
widget’s path name. Option and the args determine the exact behavior
of the command. The following commands are possible for Control
widgets:
pathName cget option
Returns the current value of the configuration option given by
option. Option may have any of the values accepted by the
tixControl command.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget. If no
option is specified, returns a list describing all of the
available options for pathName (see Tk_ConfigureInfo for
information on the format of this list). If option is specified
with no value, then the command returns a list describing the
one named option (this list will be identical to the
corresponding sublist of the value returned if no option is
specified). If one or more option-value pairs are specified,
then the command modifies the given widget option(s) to have the
given value(s); in this case the command returns an empty
string. Option may have any of the values accepted by the
tixControl command.
pathName decr
Decrements the value of the Control widget by the step specified
by the -step option.
pathName incr
Increments the value of the Control widget by the step specified
by the -step option.
pathName invoke
Causes the command specified by the -command option to be
invoked.
pathName update
If the user has modified the entry using keyboard inputs, the
update command will update the -value of this Control widget.
When the Control widget’s -selectmode option is set to "normal",
one should call the update command on this widget before
examining its -value option. This command has no effect in if
the -selectmode option is set to "immediate".
pathName subwidget name ?args?
When no options are given, this command returns the pathname of
the subwidget of the specified name.
When options are given, the widget command of the specified
subwidget will be called with these options.
BINDINGS
When the user presses the up/down arrow buttons (or press the <Up> and
<Down> arrow keys on the keyboard), the value of the tixControl widget
is adjusted according to the -validatecmd, -incrcmd, -decrcmd, -step,
-max and -min options.
KEYWORDS
Tix(n)