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NAME

       cdk_histogram - curses histogram widget

SYNOPSIS

       cc [ flag ... ] file ...  -lcdk [ library ... ]

       #include <cdk/cdk.h>

       void activateCDKHistogram (
                      CDKHISTOGRAM *histogram,
                      chtype unused);

       void destroyCDKHistogram (
                      CDKHISTOGRAM *histogram);

       void drawCDKHistogram (
                      CDKHISTOGRAM *histogram,
                      boolean box);

       void eraseCDKHistogram (
                      CDKHISTOGRAM *histogram);

       boolean getCDKHistogramBox (
                      CDKHISTOGRAM *histogram);

       chtype getCDKHistogramFillerChar (
                      CDKHISTOGRAM *histogram);

       int getCDKHistogramHighValue (
                      CDKHISTOGRAM *histogram);

       int getCDKHistogramLowValue (
                      CDKHISTOGRAM *histogram);

       chtype getCDKHistogramStatsAttr (
                      CDKHISTOGRAM *histogram);

       int getCDKHistogramStatsPos (
                      CDKHISTOGRAM *histogram);

       int getCDKHistogramValue (
                      CDKHISTOGRAM *histogram);

       EHistogramDisplayType getCDKHistogramViewType (
                      CDKHISTOGRAM *histogram);

       void moveCDKHistogram (
                      CDKHISTOGRAM *histogram,
                      int xpos,
                      int ypos,
                      boolean relative,
                      boolean refresh);

       CDKHISTOGRAM *newCDKHistogram (
                      CDKSCREEN *cdkscreen,
                      int xpos,
                      int ypos,
                      int height,
                      int width,
                      int orient,
                      char *title,
                      boolean box,
                      boolean shadow);

       void positionCDKHistogram (
                      CDKHISTOGRAM *histogram);

       void setCDKHistogram (
                      CDKHISTOGRAM *histogram,
                      EHistogramDisplayType viewType,
                      int statsPos,
                      chtype statsAttribute,
                      int lowValue,
                      int highValue,
                      int currentValue,
                      chtype fillerCharacter,
                      boolean box);

       void setCDKHistogramBackgroundAttrib (
                      CDKHISTOGRAM *histogram,
                      chtype attribute);

       void setCDKHistogramBackgroundColor (
                      CDKHISTOGRAM *histogram,
                      char * color);

       void setCDKHistogramBox (
                      CDKHISTOGRAM *histogram,
                      boolean box);

       void setCDKHistogramBoxAttribute (
                      CDKHISTOGRAM *histogram,
                      chtype character);

       void setCDKHistogramDisplayType (
                      CDKHISTOGRAM *histogram,
                      EHistogramDisplayType viewtype);

       void setCDKHistogramFillerChar (
                      CDKHISTOGRAM *histogram,
                      chtype fillerCharacter);

       void setCDKHistogramHorizontalChar (
                      CDKHISTOGRAM *histogram,
                      chtype character);

       void setCDKHistogramLLChar (
                      CDKHISTOGRAM *histogram,
                      chtype character);

       void setCDKHistogramLRChar (
                      CDKHISTOGRAM *histogram,
                      chtype character);

       void setCDKHistogramStatsAttr (
                      CDKHISTOGRAM *histogram,
                      chtype statsAttribute);

       void setCDKHistogramStatsPos (
                      CDKHISTOGRAM *histogram,
                      int statsPosition);

       void setCDKHistogramULChar (
                      CDKHISTOGRAM *histogram,
                      chtype character);

       void setCDKHistogramURChar (
                      CDKHISTOGRAM *histogram,
                      chtype character);

       void setCDKHistogramValue (
                      CDKHISTOGRAM *histogram,
                      int lowValue,
                      int highValue,
                      int currentValue);

       void setCDKHistogramVerticalChar (
                      CDKHISTOGRAM *histogram,
                      chtype character);

       void setCDKHistogramViewType (
                      CDKHISTOGRAM *histogram,
                      EHistogramDisplayType viewType);

DESCRIPTION

       The  Cdk  histogram widget creates a histogram widget.  This widget can
       draw a vertical or  horizontal  histogram.   The  functions  create  or
       manipulate the Cdk histogram box widget.

AVAILABLE FUNCTIONS

       activateCDKHistogram
            obsolete entrypoint which calls drawCDKHistogram.

       destroyCDKHistogram
            removes  the  widget  from  the screen and frees memory the object
            used.

       drawCDKHistogram
            draws the histogram widget on the screen.  If the box parameter is
            true, the widget is drawn with a box.

       eraseCDKHistogram
            removes  the  widget  from  the screen.  This does NOT destroy the
            widget.

       getCDKHistogramBox
            returns true if the widget will be drawn with a box around it.

       getCDKHistogramFillerChar
            returns the character being used to draw the histogram bar.

       getCDKHistogramHighValue
            returns the high value of the histogram.

       getCDKHistogramLowValue
            returns the low value of the histogram.

       getCDKHistogramStatsAttr
            returns the attribute of the statistics of the histogram.

       getCDKHistogramStatsPos
            returns where the histogram will draw the statistics.

       getCDKHistogramValue
            returns the current value of the histogram.

       getCDKHistogramViewType
            returns the view type of the histogram widget.

       moveCDKHistogram
            moves the given widget to the given position.  The parameters xpos
            and  ypos  are the new position of the widget.  The parameter xpos
            may be an integer or one of the pre-defined  values  TOP,  BOTTOM,
            and  CENTER.   The  parameter ypos can be an integer or one of the
            pre-defined  values  LEFT,  RIGHT,  and  CENTER.   The   parameter
            relative  states  whether the xpos/ypos pair is a relative move or
            an absolute move.  For example if xpos  =  1  and  ypos  =  2  and
            relative  =  TRUE, then the widget would move one row down and two
            columns right.  If the value of relative was FALSE then the widget
            would  move  to  the  position  (1,2).  Do not use the values TOP,
            BOTTOM, LEFT, RIGHT, or  CENTER  when  relative  =  TRUE.   (weird
            things  may  happen).   The  final  parameter refresh is a boolean
            value which states whether the widget will get refreshed after the
            move.

       newCDKHistogram
            creates   a   histogram  widget  and  returns  a  pointer  to  it.
            Parameters:

            screen
                 is the screen you wish this widget to be placed in.

            xpos controls the placement of the  object  along  the  horizontal
                 axis.   It may be an integer or one of the pre-defined values
                 LEFT, RIGHT, and CENTER.

            ypos controls the placement of the object along the vertical axis.
                 It  may  be  an integer or one of the pre-defined values TOP,
                 BOTTOM, and CENTER.

            title
                 is the string which will be  displayed  at  the  top  of  the
                 widget.   The title can be more than one line; just provide a
                 carriage return character at the line break.

            height and

            width
                 control the height and width of the widget.  If you provide a
                 value  of  zero  for  either  of the height or the width, the
                 widget will be created with the full width and height of  the
                 screen.   If you provide a negative value, the widget will be
                 created the full height or width minus the value provided.

            orient
                 specifies the orientation of the histogram.   It  is  one  of
                 these pre-defined values: VERTICAL and HORIZONTAL.

            label
                 is the string to use as the label of the histogram.

            box  is true if the widget should be drawn with a box around it.

            shadow
                 turns the shadow on or off around this widget.

            If  the  widget  could  not  be  created  then  a  NULL pointer is
            returned.

       positionCDKHistogram
            allows the user to move the  widget  around  the  screen  via  the
            cursor/keypad keys.  See cdk_position (3) for key bindings.

       setCDKHistogram
            lets  the  programmer  set  the  specific  values of the histogram
            widget.  The parameter viewType specifies the type of histogram to
            draw.  The following table lists the valid values and the results.

                   +-------------+--------------------------------+
                   |Display_Type | Result                         |
                   +-------------+--------------------------------+
                   |vNONE        | Displays no information  about |
                   |             | the current values.            |
                   +-------------+--------------------------------+
                   |vPERCENT     | Displays  the current value as |
                   |             | a percentage.                  |
                   +-------------+--------------------------------+
                   |vFRACTION    | Displays the current value  as |
                   |             | a fraction.                    |
                   +-------------+--------------------------------+
                   |vREAL        | Displays the current value.    |
                   +-------------+--------------------------------+

            The  statsPosition  parameter  states where the statistics will be
            displayed.  It accepts TOP, BOTTOM, and CENTER.

            The  parameter  statsAttribute  sets   the   attributes   of   the
            statistics.

            The  parameters lowValue, highValue, and currentValue are the low,
            high, and current values respectively.

            The filler character is the character to use in the  unused  space
            in the histogram.

            If the box parameter is true, the widget is drawn with a box.

       setCDKHistogramBackgroundAttrib
            the   background   color  attribute  the  widget.   The  parameter
            attribute is a curses attribute, e.g., A_BOLD.

       setCDKHistogramBackgroundColor
            the background color of the widget.  The parameter color is in the
            format of the Cdk format strings.  See cdk_display (3).

       setCDKHistogramBox
            sets whether the widget will be drawn with a box around it.

       setCDKHistogramBoxAttribute
            sets the attribute of the box.

       setCDKHistogramDisplayType
            sets the display type (see getCDKHistogramViewType).

       setCDKHistogramFillerChar
            sets the character to use when drawing the histogram bar.

       setCDKHistogramHorizontalChar
            sets  the  horizontal  drawing  character for the box to the given
            character.

       setCDKHistogramLLChar
            sets the lower left hand corner of the widget’s box to  the  given
            character.

       setCDKHistogramLRChar
            sets  the lower right hand corner of the widget’s box to the given
            character.

       setCDKHistogramStatsAttr
            sets the attribute to use when drawing the histogram statistics.

       setCDKHistogramStatsPos
            sets where the statistics will be drawn on the  widget.   See  the
            setCDKHistogram description for more details.

       setCDKHistogramULChar
            sets  the  upper left hand corner of the widget’s box to the given
            character.

       setCDKHistogramURChar
            sets the upper right hand corner of the widget’s box to the  given
            character.

       setCDKHistogramValue
            sets the low, high, and current value of the histogram.

       setCDKHistogramVerticalChar
            sets  the  vertical  drawing  character  for  the box to the given
            character.

       setCDKHistogramViewType
            sets the view type of the histogram.  Look at the  setCDKHistogram
            description for more details.

SEE ALSO

       cdk(3), cdk_binding(3), cdk_display(3), cdk_position(3), cdk_screen(3)

                                                              cdk_histogram(3)