Command.c File Reference

#include <stdio.h>
#include <X11/IntrinsicP.h>
#include <X11/StringDefs.h>
#include <X11/Xmu/Misc.h>
#include <X11/Xaw3d/XawInit.h>
#include <X11/Xaw3d/CommandP.h>
#include <X11/Xmu/Converters.h>
#include <X11/extensions/shape.h>

Include dependency graph for Command.c:

Go to the source code of this file.

Defines
#define	DEFAULT_HIGHLIGHT_THICKNESS   2
#define	DEFAULT_SHAPE_HIGHLIGHT   32767
#define	offset(field)   XtOffsetOf(CommandRec, field)
#define	SuperClass   ((LabelWidgetClass)&labelClassRec)
Functions
static Boolean	SetValues ()
static void	Initialize ()
static void	Redisplay ()
static void	Set ()
static void	Reset ()
static void	Notify ()
static void	Unset ()
static void	Highlight ()
static void	Unhighlight ()
static void	Destroy ()
static void	PaintCommandWidget ()
static void	ClassInitialize ()
static Boolean	ShapeButton ()
static void	Realize ()
static void	Resize ()
static GC	Get_GC (CommandWidget cbw, Pixel fg, Pixel bg)
static void	Initialize (Widget request, Widget new, ArgList args, Cardinal *num_args)
static Region	HighlightRegion (CommandWidget cbw)
static void	Set (Widget w, XEvent *event, String *params, Cardinal *num_params)
static void	Unset (Widget w, XEvent *event, String *params, Cardinal *num_params)
static void	Reset (Widget w, XEvent *event, String *params, Cardinal *num_params)
static void	Highlight (Widget w, XEvent *event, String *params, Cardinal *num_params)
static void	Unhighlight (Widget w, XEvent *event, String *params, Cardinal *num_params)
static void	Notify (Widget w, XEvent *event, String *params, Cardinal *num_params)
static void	Redisplay (Widget w, XEvent *event, Region region)
static void	PaintCommandWidget (Widget w, XEvent *event, Region region, Boolean change)
static void	Destroy (Widget w)
static Boolean	SetValues (Widget current, Widget request, Widget new, ArgList args, Cardinal *num_args)
static Boolean	ShapeButton (CommandWidget cbw, Boolean checkRectangular)
static void	Realize (Widget w, Mask *valueMask, XSetWindowAttributes *attributes)
static void	Resize (Widget w)
Variables
static char	defaultTranslations []
static XtResource	resources []
static XtActionsRec	actionsList []
CommandClassRec	commandClassRec
WidgetClass	commandWidgetClass = (WidgetClass) &commandClassRec

---

Define Documentation

#define DEFAULT_HIGHLIGHT_THICKNESS   2

Definition at line 64 of file Command.c.

Referenced by Initialize().

#define DEFAULT_SHAPE_HIGHLIGHT   32767

Definition at line 65 of file Command.c.

Referenced by Initialize().

#define offset

(

field

)

XtOffsetOf(CommandRec, field)

Definition at line 81 of file Command.c.

#define SuperClass   ((LabelWidgetClass)&labelClassRec)

Definition at line 117 of file Command.c.

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Function Documentation

static void ClassInitialize

(

)

[static]

Definition at line 559 of file Command.c.

References NULL, XawInitializeWidgetSet(), XmuCvtStringToShapeStyle(), and XtRShapeStyle.

{
    XawInitializeWidgetSet();
    XtSetTypeConverter( XtRString, XtRShapeStyle, XmuCvtStringToShapeStyle,
                        (XtConvertArgList)NULL, 0, XtCacheNone, (XtDestructor)NULL );
}

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static void Destroy

(

Widget

w

)

[static]

Definition at line 491 of file Command.c.

References _CommandRec::command, CommandPart::inverse_GC, _CommandRec::label, CommandPart::normal_GC, and LabelPart::normal_GC.

{
  CommandWidget cbw = (CommandWidget) w;

  /* so Label can release it */
  if (cbw->label.normal_GC == cbw->command.normal_GC)
    XtReleaseGC( w, cbw->command.inverse_GC );
  else
    XtReleaseGC( w, cbw->command.normal_GC );
}

static void Destroy

(

)

static GC Get_GC	(	CommandWidget	cbw,
		Pixel	fg,
		Pixel	bg
	)			[static]

Definition at line 178 of file Command.c.

Referenced by Initialize(), and SetValues().

{
  XGCValues     values;
  
  values.foreground   = fg;
  values.background     = bg;
  values.font           = cbw->label.font->fid;
  values.cap_style = CapProjecting;
  
  if (cbw->command.highlight_thickness > 1 )
    values.line_width   = cbw->command.highlight_thickness;
  else 
    values.line_width   = 0;
  
  if ( cbw->simple.international == True )
      return XtAllocateGC((Widget)cbw, 0, 
                 (GCForeground|GCBackground|GCLineWidth|GCCapStyle),
                 &values, GCFont, 0 );
  else
      return XtGetGC((Widget)cbw,
                 (GCForeground|GCBackground|GCFont|GCLineWidth|GCCapStyle),
                 &values);
}

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static void Highlight	(	Widget	w,
		XEvent *	event,
		String *	params,
		Cardinal *	num_params
	)			[static]

Definition at line 336 of file Command.c.

References _CommandRec::command, HighlightAlways, CommandPart::highlighted, HighlightRegion(), HighlightWhenUnset, PaintCommandWidget(), and TRUE.

{
  CommandWidget cbw = (CommandWidget)w;

  if ( *num_params == (Cardinal) 0) 
    cbw->command.highlighted = HighlightWhenUnset;
  else {
    if ( *num_params != (Cardinal) 1) 
      XtWarning("Too many parameters passed to highlight action table.");
    switch (params[0][0]) {
    case 'A':
    case 'a':
      cbw->command.highlighted = HighlightAlways;
      break;
    default:
      cbw->command.highlighted = HighlightWhenUnset;
      break;
    }
  }

  if (XtIsRealized(w))
    PaintCommandWidget(w, event, HighlightRegion(cbw), TRUE);
}

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static void Highlight

(

)

[static]

static Region HighlightRegion

(

CommandWidget

cbw

)

[static]

Definition at line 242 of file Command.c.

References Min, NULL, and s.

Referenced by Highlight(), and Unhighlight().

{
  static Region outerRegion = NULL, innerRegion, emptyRegion;
  Dimension s = cbw->threeD.shadow_width;
  XRectangle rect;

  if (cbw->command.highlight_thickness == 0 ||
      cbw->command.highlight_thickness >
      (Dimension) ((Dimension) Min(cbw->core.width, cbw->core.height)/2))
    return(NULL);

  if (outerRegion == NULL) {
    /* save time by allocating scratch regions only once. */
    outerRegion = XCreateRegion();
    innerRegion = XCreateRegion();
    emptyRegion = XCreateRegion();
  }

  rect.x = rect.y = s;
  rect.width = cbw->core.width - 2 * s;
  rect.height = cbw->core.height - 2 * s;
  XUnionRectWithRegion( &rect, emptyRegion, outerRegion );
  rect.x = rect.y += cbw->command.highlight_thickness;
  rect.width -= cbw->command.highlight_thickness * 2;
  rect.height -= cbw->command.highlight_thickness * 2;
  XUnionRectWithRegion( &rect, emptyRegion, innerRegion );
  XSubtractRegion( outerRegion, innerRegion, outerRegion );
  return outerRegion;
}

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static void Initialize	(	Widget	request,
		Widget	new,
		ArgList	args,
		Cardinal *	num_args
	)			[static]

Definition at line 207 of file Command.c.

References _CommandRec::command, _CommandRec::core, DEFAULT_HIGHLIGHT_THICKNESS, DEFAULT_SHAPE_HIGHLIGHT, FALSE, LabelPart::foreground, Get_GC(), CommandPart::highlight_thickness, CommandPart::highlighted, HighlightNone, CommandPart::inverse_GC, _CommandRec::label, LabelPart::normal_GC, CommandPart::normal_GC, CommandPart::set, ThreeDPart::shadow_width, CommandPart::shape_style, _CommandRec::threeD, and XawShapeRectangle.

{
  CommandWidget cbw = (CommandWidget) new;
  int shape_event_base, shape_error_base;

  if (cbw->command.shape_style != XawShapeRectangle
      && !XShapeQueryExtension(XtDisplay(new), &shape_event_base, 
                               &shape_error_base))
      cbw->command.shape_style = XawShapeRectangle;
  if (cbw->command.highlight_thickness == DEFAULT_SHAPE_HIGHLIGHT) {
      if (cbw->command.shape_style != XawShapeRectangle)
          cbw->command.highlight_thickness = 0;
      else
          cbw->command.highlight_thickness = DEFAULT_HIGHLIGHT_THICKNESS;
  }
  if (cbw->command.shape_style != XawShapeRectangle) {
    cbw->threeD.shadow_width = 0;
    cbw->core.border_width = 1;
  }

  cbw->command.normal_GC = Get_GC(cbw, cbw->label.foreground, 
                                  cbw->core.background_pixel);
  cbw->command.inverse_GC = Get_GC(cbw, cbw->core.background_pixel, 
                                   cbw->label.foreground);
  XtReleaseGC(new, cbw->label.normal_GC);
  cbw->label.normal_GC = cbw->command.normal_GC;

  cbw->command.set = FALSE;
  cbw->command.highlighted = HighlightNone;
}

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static void Initialize

(

void

)

[static]

static void Notify	(	Widget	w,
		XEvent *	event,
		String *	params,
		Cardinal *	num_params
	)			[static]

Definition at line 381 of file Command.c.

References CommandPart::callbacks, _CommandRec::command, NULL, and CommandPart::set.

{
  CommandWidget cbw = (CommandWidget)w; 

  /* check to be sure state is still Set so that user can cancel
     the action (e.g. by moving outside the window, in the default
     bindings.
  */
  if (cbw->command.set)
    XtCallCallbackList(w, cbw->command.callbacks, (XtPointer) NULL);
}

static void Notify

(

)

Referenced by TurnOffRadioSiblings(), XawToggleSetCurrent(), and XawToggleUnsetCurrent().

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static void PaintCommandWidget	(	Widget	w,
		XEvent *	event,
		Region	region,
		Boolean	change
	)			[static]

Definition at line 426 of file Command.c.

References _CommandRec::command, _CommandRec::core, CommandPart::highlight_thickness, CommandPart::highlighted, HighlightNone, HighlightWhenUnset, CommandPart::inverse_GC, _CommandRec::label, Min, CommandPart::normal_GC, LabelPart::normal_GC, NULL, offset, s, CommandPart::set, ThreeDPart::shadow_width, ThreeDClassPart::shadowdraw, SuperClass, _CommandRec::threeD, and _CommandClassRec::threeD_class.

{
  CommandWidget cbw = (CommandWidget) w;
  CommandWidgetClass cwclass = (CommandWidgetClass) XtClass (w);
  Boolean very_thick;
  GC norm_gc, rev_gc;
  Dimension     s = cbw->threeD.shadow_width;
   
  very_thick = cbw->command.highlight_thickness >
               (Dimension)((Dimension) Min(cbw->core.width, cbw->core.height)/2);

  if (cbw->command.set) {
    cbw->label.normal_GC = cbw->command.inverse_GC;
    XFillRectangle(XtDisplay(w), XtWindow(w), cbw->command.normal_GC,
                   s, s, cbw->core.width - 2 * s, cbw->core.height - 2 * s);
    region = NULL;              /* Force label to repaint text. */
  }
  else
    cbw->label.normal_GC = cbw->command.normal_GC;

  if (cbw->command.highlight_thickness <= 0)
  {
    (*SuperClass->core_class.expose) (w, event, region);
    (*cwclass->threeD_class.shadowdraw) (w, event, region, !cbw->command.set);
    return;
  }

/*
 * If we are set then use the same colors as if we are not highlighted. 
 */

  if (cbw->command.set == (cbw->command.highlighted == HighlightNone)) {
    norm_gc = cbw->command.inverse_GC;
    rev_gc = cbw->command.normal_GC;
  }
  else {
    norm_gc = cbw->command.normal_GC;
    rev_gc = cbw->command.inverse_GC;
  }

  if ( !( (!change && (cbw->command.highlighted == HighlightNone)) ||
          ((cbw->command.highlighted == HighlightWhenUnset) &&
           (cbw->command.set))) ) {
    if (very_thick) {
      cbw->label.normal_GC = norm_gc; /* Give the label the right GC. */
      XFillRectangle(XtDisplay(w),XtWindow(w), rev_gc,
                     s, s, cbw->core.width - 2 * s, cbw->core.height - 2 * s);
    }
    else {
      /* wide lines are centered on the path, so indent it */
      int offset = cbw->command.highlight_thickness/2;
      XDrawRectangle(XtDisplay(w),XtWindow(w), rev_gc, s + offset, s + offset, 
                     cbw->core.width - cbw->command.highlight_thickness - 2 * s,
                     cbw->core.height - cbw->command.highlight_thickness - 2 * s);
    }
  }
  (*SuperClass->core_class.expose) (w, event, region);
  (*cwclass->threeD_class.shadowdraw) (w, event, region, !cbw->command.set);
}

static void PaintCommandWidget

(

)

Referenced by Highlight(), Redisplay(), Set(), Unhighlight(), and Unset().

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static void Realize	(	Widget	w,
		Mask *	valueMask,
		XSetWindowAttributes *	attributes
	)			[static]

Definition at line 590 of file Command.c.

References FALSE, and ShapeButton().

{
    (*commandWidgetClass->core_class.superclass->core_class.realize)
        (w, valueMask, attributes);

    ShapeButton( (CommandWidget) w, FALSE);
}

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static void Realize

(

)

[static]

static void Redisplay	(	Widget	w,
		XEvent *	event,
		Region	region
	)			[static]

Definition at line 409 of file Command.c.

References FALSE, and PaintCommandWidget().

{
  PaintCommandWidget(w, event, region, FALSE);
}

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static void Redisplay

(

)

Referenced by ActionNotify(), MakeSetValuesRequest(), Resize(), and XawListChange().

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static void Reset	(	Widget	w,
		XEvent *	event,
		String *	params,
		Cardinal *	num_params
	)			[static]

Definition at line 319 of file Command.c.

References _CommandRec::command, CommandPart::highlighted, HighlightNone, CommandPart::set, Unhighlight(), and Unset().

{
  CommandWidget cbw = (CommandWidget)w;

  if (cbw->command.set) {
    cbw->command.highlighted = HighlightNone;
    Unset(w, event, params, num_params);
  } else
    Unhighlight(w, event, params, num_params);
}

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static void Reset

(

)

static void Resize

(

Widget

w

)

[static]

Definition at line 601 of file Command.c.

References FALSE, and ShapeButton().

{
    if (XtIsRealized(w)) 
        ShapeButton( (CommandWidget) w, FALSE);

    (*commandWidgetClass->core_class.superclass->core_class.resize)(w);
}

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static void Resize

(

)

static void Set	(	Widget	w,
		XEvent *	event,
		String *	params,
		Cardinal *	num_params
	)			[static]

Definition at line 281 of file Command.c.

References _CommandRec::command, NULL, PaintCommandWidget(), CommandPart::set, and TRUE.

{
  CommandWidget cbw = (CommandWidget)w;

  if (cbw->command.set)
    return;

  cbw->command.set= TRUE;
  if (XtIsRealized(w))
    PaintCommandWidget(w, event, (Region) NULL, TRUE);
}

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static void Set

(

)

static Boolean SetValues	(	Widget	current,
		Widget	request,
		Widget	new,
		ArgList	args,
		Cardinal *	num_args
	)			[static]

Definition at line 509 of file Command.c.

References _CommandRec::command, _CommandRec::core, FALSE, LabelPart::font, LabelPart::foreground, Get_GC(), CommandPart::highlight_thickness, CommandPart::highlighted, HighlightNone, CommandPart::inverse_GC, _CommandRec::label, CommandPart::normal_GC, LabelPart::normal_GC, CommandPart::set, CommandPart::shape_style, ShapeButton(), and TRUE.

{
  CommandWidget oldcbw = (CommandWidget) current;
  CommandWidget cbw = (CommandWidget) new;
  Boolean redisplay = False;

  if ( oldcbw->core.sensitive != cbw->core.sensitive && !cbw->core.sensitive) {
    /* about to become insensitive */
    cbw->command.set = FALSE;
    cbw->command.highlighted = HighlightNone;
    redisplay = TRUE;
  }
  
  if ( (oldcbw->label.foreground != cbw->label.foreground)           ||
       (oldcbw->core.background_pixel != cbw->core.background_pixel) ||
       (oldcbw->command.highlight_thickness != 
                                   cbw->command.highlight_thickness) ||
       (oldcbw->label.font != cbw->label.font) ) 
  {
    if (oldcbw->label.normal_GC == oldcbw->command.normal_GC)
        /* Label has release one of these */
      XtReleaseGC(new, cbw->command.inverse_GC);
    else
      XtReleaseGC(new, cbw->command.normal_GC);

    cbw->command.normal_GC = Get_GC(cbw, cbw->label.foreground, 
                                    cbw->core.background_pixel);
    cbw->command.inverse_GC = Get_GC(cbw, cbw->core.background_pixel, 
                                     cbw->label.foreground);
    XtReleaseGC(new, cbw->label.normal_GC);
    cbw->label.normal_GC = (cbw->command.set
                            ? cbw->command.inverse_GC
                            : cbw->command.normal_GC);
    
    redisplay = True;
  }

  if ( XtIsRealized(new)
       && oldcbw->command.shape_style != cbw->command.shape_style
       && !ShapeButton(cbw, TRUE))
  {
      cbw->command.shape_style = oldcbw->command.shape_style;
  }

  return (redisplay);
}

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static Boolean SetValues

(

)

[static]

static Boolean ShapeButton	(	CommandWidget	cbw,
		Boolean	checkRectangular
	)			[static]

Definition at line 568 of file Command.c.

References TRUE, XawShapeRectangle, XawShapeRoundedRectangle, and XmuReshapeWidget().

{
    Dimension corner_size = 0;

    if ( (cbw->command.shape_style == XawShapeRoundedRectangle) ) {
        corner_size = (cbw->core.width < cbw->core.height) ? cbw->core.width 
                                                           : cbw->core.height;
        corner_size = (int) (corner_size * cbw->command.corner_round) / 100;
    }

    if (checkRectangular || cbw->command.shape_style != XawShapeRectangle) {
        if (!XmuReshapeWidget((Widget) cbw, cbw->command.shape_style,
                              corner_size, corner_size)) {
            cbw->command.shape_style = XawShapeRectangle;
            return(False);
        }
    }
    return(TRUE);
}

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static Boolean ShapeButton

(

)

[static]

Referenced by Realize(), Resize(), and SetValues().

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static void Unhighlight	(	Widget	w,
		XEvent *	event,
		String *	params,
		Cardinal *	num_params
	)			[static]

Definition at line 366 of file Command.c.

References _CommandRec::command, CommandPart::highlighted, HighlightNone, HighlightRegion(), PaintCommandWidget(), and TRUE.

{
  CommandWidget cbw = (CommandWidget)w;

  cbw->command.highlighted = HighlightNone;
  if (XtIsRealized(w))
    PaintCommandWidget(w, event, HighlightRegion(cbw), TRUE);
}

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static void Unhighlight

(

)

Referenced by Highlight(), and Reset().

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static void Unset	(	Widget	w,
		XEvent *	event,
		String *	params,
		Cardinal *	num_params
	)			[static]

Definition at line 299 of file Command.c.

References _CommandRec::command, FALSE, NULL, PaintCommandWidget(), CommandPart::set, and TRUE.

{
  CommandWidget cbw = (CommandWidget)w;

  if (!cbw->command.set)
    return;

  cbw->command.set = FALSE;
  if (XtIsRealized(w)) {
    XClearWindow(XtDisplay(w), XtWindow(w));
    PaintCommandWidget(w, event, (Region) NULL, TRUE);
  }
}

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static void Unset

(

)

Referenced by Reset().

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---

Variable Documentation

XtActionsRec actionsList[] [static]

Initial value:

 {
  {"set",               Set},
  {"notify",            Notify},
  {"highlight",         Highlight},
  {"reset",             Reset},
  {"unset",             Unset},
  {"unhighlight",       Unhighlight}
}

Definition at line 108 of file Command.c.

CommandClassRec commandClassRec

Definition at line 119 of file Command.c.

WidgetClass commandWidgetClass = (WidgetClass) &commandClassRec

Definition at line 169 of file Command.c.

char defaultTranslations[] [static]

Initial value:

    "<EnterWindow>:     highlight()             \n\
     <LeaveWindow>:     reset()                 \n\
     <Btn1Down>:        set()                   \n\
     <Btn1Up>:          notify() unset()        "

Definition at line 75 of file Command.c.

XtResource resources[] [static]

Initial value:

 { 
   {XtNcallback, XtCCallback, XtRCallback, sizeof(XtPointer), 
      offset(command.callbacks), XtRCallback, (XtPointer)NULL},
   {XtNhighlightThickness, XtCThickness, XtRDimension, sizeof(Dimension),
      offset(command.highlight_thickness), XtRImmediate,
      (XtPointer) DEFAULT_SHAPE_HIGHLIGHT},
   {XtNshapeStyle, XtCShapeStyle, XtRShapeStyle, sizeof(int),
      offset(command.shape_style), XtRImmediate, (XtPointer)XawShapeRectangle},
   {XtNcornerRoundPercent, XtCCornerRoundPercent, 
        XtRDimension, sizeof(Dimension),
        offset(command.corner_round), XtRImmediate, (XtPointer) 25},
   {XtNshadowWidth, XtCShadowWidth, XtRDimension, sizeof(Dimension),
      offset(threeD.shadow_width), XtRImmediate, (XtPointer) 2},
   {XtNborderWidth, XtCBorderWidth, XtRDimension, sizeof(Dimension),
      XtOffsetOf(RectObjRec,rectangle.border_width), XtRImmediate,
      (XtPointer)0}
}

Definition at line 82 of file Command.c.

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