components/x11/libXaw4/src/Xaw3_1Logo.c

   1 #ifndef lint
   2 static char Xrcsid[] = "$XConsortium: Logo.c,v 1.11 89/10/09 16:20:39 jim Exp $";
   3 #endif
   4
   5 /*
   6 Copyright 1988 by the Massachusetts Institute of Technology
   7
   8 Permission to use, copy, modify, and distribute this
   9 software and its documentation for any purpose and without
  10 fee is hereby granted, provided that the above copyright
  11 notice appear in all copies and that both that copyright
  12 notice and this permission notice appear in supporting
  13 documentation, and that the name of M.I.T. not be used in
  14 advertising or publicity pertaining to distribution of the
  15 software without specific, written prior permission.
  16 M.I.T. makes no representations about the suitability of
  17 this software for any purpose.  It is provided "as is"
  18 without express or implied warranty.
  19 */
  20
  21 #include <X11/StringDefs.h>
  22 #include <X11/IntrinsicP.h>
  23 #include <./Xaw3_1XawInit.h>
  24 #include <./Xaw3_1LogoP.h>
  25
  26 static Dimension defDim = 100;
  27
  28 static XtResource resources[] = {
  29     {XtNwidth, XtCWidth, XtRDimension, sizeof(Dimension),
  30         XtOffset(Widget,core.width), XtRDimension, (caddr_t)&defDim},
  31     {XtNheight, XtCHeight, XtRDimension, sizeof(Dimension),
  32         XtOffset(Widget,core.height), XtRDimension, (caddr_t)&defDim},
  33     {XtNbackground, XtCBackground, XtRPixel, sizeof(Pixel),
  34         XtOffset(Widget,core.background_pixel), XtRString, "White"},
  35     {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
  36         XtOffset(LogoWidget,logo.fgpixel), XtRString, "Black"},
  37     {XtNreverseVideo, XtCReverseVideo, XtRBoolean, sizeof (Boolean),
  38         XtOffset(LogoWidget,logo.reverse_video), XtRString, "FALSE"},
  39 };
  40
  41 static void Initialize(), Realize(), Destroy(), Redisplay();
  42 static Boolean SetValues();
  43
  44 LogoClassRec logoClassRec = {
  45     { /* core fields */
  46     /* superclass               */      &widgetClassRec,
  47     /* class_name               */      "Logo",
  48     /* widget_size              */      sizeof(LogoRec),
  49     /* class_initialize         */      XawInitializeWidgetSet,
  50     /* class_part_initialize    */      NULL,
  51     /* class_inited             */      FALSE,
  52     /* initialize               */      Initialize,
  53     /* initialize_hook          */      NULL,
  54     /* realize                  */      Realize,
  55     /* actions                  */      NULL,
  56     /* num_actions              */      0,
  57     /* resources                */      resources,
  58     /* resource_count           */      XtNumber(resources),
  59     /* xrm_class                */      NULL,
  60     /* compress_motion          */      TRUE,
  61     /* compress_exposure        */      TRUE,
  62     /* compress_enterleave      */      TRUE,
  63     /* visible_interest         */      FALSE,
  64     /* destroy                  */      Destroy,
  65     /* resize                   */      NULL,
  66     /* expose                   */      Redisplay,
  67     /* set_values               */      SetValues,
  68     /* set_values_hook          */      NULL,
  69     /* set_values_almost        */      XtInheritSetValuesAlmost,
  70     /* get_values_hook          */      NULL,
  71     /* accept_focus             */      NULL,
  72     /* version                  */      XtVersion,
  73     /* callback_private         */      NULL,
  74     /* tm_table                 */      NULL,
  75     /* query_geometry           */      XtInheritQueryGeometry,
  76     /* display_accelerator      */      XtInheritDisplayAccelerator,
  77     /* extension                */      NULL
  78     }
  79 };
  80
  81 WidgetClass logoWidgetClass = (WidgetClass) &logoClassRec;
  82
  83 /* ARGSUSED */
  84 static void Initialize (request, new)
  85     Widget request, new;
  86 {
  87     LogoWidget w = (LogoWidget)new;
  88     XGCValues  gcv;
  89
  90     if (w->logo.reverse_video) {
  91         Pixel fg = w->logo.fgpixel;
  92         Pixel bg = w->core.background_pixel;
  93
  94         if (w->core.border_pixel == fg)
  95             w->core.border_pixel = bg;
  96         w->logo.fgpixel = bg;
  97         w->core.background_pixel = fg;
  98     }
  99
 100     gcv.foreground = w->logo.fgpixel;
 101     w->logo.foreGC = XtGetGC((Widget)w, GCForeground, &gcv);
 102     gcv.foreground = w->core.background_pixel;
 103     w->logo.backGC = XtGetGC((Widget)w, GCForeground, &gcv);
 104 }
 105
 106 static void Realize (gw, valueMask, attrs)
 107     Widget gw;
 108     XtValueMask *valueMask;
 109     XSetWindowAttributes *attrs;
 110 {
 111     XtCreateWindow( gw, InputOutput, (Visual *)CopyFromParent,
 112                     *valueMask, attrs);
 113 }
 114
 115 static void Destroy (gw)
 116     Widget gw;
 117 {
 118     LogoWidget w = (LogoWidget) gw;
 119     XtDestroyGC (w->logo.foreGC);
 120     XtDestroyGC (w->logo.backGC);
 121 }
 122
 123 /* ARGSUSED */
 124 static void Redisplay (gw, event, region)
 125     Widget gw;
 126     XEvent *event;              /* unused */
 127     Region region;              /* unused */
 128 {
 129     LogoWidget w = (LogoWidget) gw;
 130
 131     XmuDrawLogo(XtDisplay(w), XtWindow(w), w->logo.foreGC, w->logo.backGC,
 132                 0, 0, (unsigned int) w->core.width,
 133                 (unsigned int) w->core.height);
 134 }
 135
 136 /* ARGSUSED */
 137 static Boolean SetValues (gcurrent, grequest, gnew)
 138     Widget gcurrent, grequest, gnew;
 139 {
 140     LogoWidget current = (LogoWidget) gcurrent;
 141     LogoWidget new = (LogoWidget) gnew;
 142     Boolean redisplay = FALSE;
 143     XGCValues   gcv;
 144
 145     if ((new->logo.fgpixel != current->logo.fgpixel) ||
 146         (new->core.background_pixel != current->core.background_pixel)) {
 147         XtDestroyGC (current->logo.foreGC);
 148         XtDestroyGC (current->logo.backGC);
 149         gcv.foreground = new->logo.fgpixel;
 150         new->logo.foreGC = XtGetGC(gnew, GCForeground, &gcv);
 151         gcv.foreground = new->core.background_pixel;
 152         new->logo.backGC = XtGetGC(gnew, GCForeground, &gcv);
 153         redisplay = TRUE;
 154     }
 155
 156    return (redisplay);
 157 }