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Member "xorg-server-1.20.5/hw/dmx/config/Canvas.c" (30 May 2019, 5951 Bytes) of package /linux/misc/xorg-server-1.20.5.tar.bz2:


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    1 /*
    2  * Copyright 1987, 1998  The Open Group
    3  *
    4  * Permission to use, copy, modify, distribute, and sell this software and its
    5  * documentation for any purpose is hereby granted without fee, provided that
    6  * the above copyright notice appear in all copies and that both that
    7  * copyright notice and this permission notice appear in supporting
    8  * documentation.
    9  *
   10  * The above copyright notice and this permission notice shall be included in
   11  * all copies or substantial portions of the Software.
   12  *
   13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
   16  * OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
   17  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   18  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   19  *
   20  * Except as contained in this notice, the name of The Open Group shall not be
   21  * used in advertising or otherwise to promote the sale, use or other dealings
   22  * in this Software without prior written authorization from The Open Group.
   23  */
   24 
   25 /*
   26  * Copyright 2002 Red Hat Inc., Durham, North Carolina.
   27  *
   28  * All Rights Reserved.
   29  *
   30  * Permission is hereby granted, free of charge, to any person obtaining
   31  * a copy of this software and associated documentation files (the
   32  * "Software"), to deal in the Software without restriction, including
   33  * without limitation on the rights to use, copy, modify, merge,
   34  * publish, distribute, sublicense, and/or sell copies of the Software,
   35  * and to permit persons to whom the Software is furnished to do so,
   36  * subject to the following conditions:
   37  *
   38  * The above copyright notice and this permission notice (including the
   39  * next paragraph) shall be included in all copies or substantial
   40  * portions of the Software.
   41  *
   42  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   43  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   44  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   45  * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
   46  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   47  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   48  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   49  * SOFTWARE.
   50  */
   51 
   52 /*
   53  * Authors:
   54  *   Rickard E. (Rik) Faith <faith@redhat.com>
   55  *
   56  * This file was originally taken from xc/lib/Xaw/Template.c
   57  */
   58 
   59 #include <X11/IntrinsicP.h>
   60 #include <X11/StringDefs.h>
   61 #include "CanvasP.h"
   62 
   63 static void
   64 CanvasInitialize(Widget request, Widget w, ArgList args, Cardinal * num_args)
   65 {
   66 }
   67 
   68 static void
   69 CanvasExpose(Widget w, XEvent * event, Region region)
   70 {
   71     CanvasExposeDataRec data;
   72 
   73     data.w = w;
   74     data.event = event;
   75     data.region = region;
   76 
   77     if (!XtIsRealized(w))
   78         return;
   79     XtCallCallbacks(w, XtNcanvasExposeCallback, (XtPointer) &data);
   80 }
   81 
   82 static void
   83 CanvasResize(Widget w)
   84 {
   85     if (!XtIsRealized(w))
   86         return;
   87     XtCallCallbacks(w, XtNcanvasResizeCallback, (XtPointer) w);
   88 }
   89 
   90 static void
   91 CanvasAction(Widget w, XEvent * event, String * params, Cardinal * num_params)
   92 {
   93     XtCallCallbacks(w, XtNcallback, (XtPointer) event);
   94 }
   95 
   96 #define offset(field) XtOffsetOf(CanvasRec, canvas.field)
   97 static XtResource resources[] = {
   98     {XtNcallback, XtCCallback, XtRCallback,
   99      sizeof(XtCallbackList), offset(input_callback), XtRCallback, NULL}
  100     ,
  101     {(char *) XtNcanvasExposeCallback, (char *) XtCcanvasExposeCallback, XtRCallback,
  102      sizeof(XtCallbackList), offset(expose_callback), XtRCallback, NULL}
  103     ,
  104     {(char *) XtNcanvasResizeCallback, (char *) XtCcanvasResizeCallback, XtRCallback,
  105      sizeof(XtCallbackList), offset(resize_callback), XtRCallback, NULL}
  106     ,
  107 };
  108 
  109 #undef offset
  110 
  111 static XtActionsRec actions[] = {
  112     {(char *) "canvas", CanvasAction},
  113 };
  114 
  115 static char translations[] = "<Key>:    canvas()\n\
  116 <Motion>:  canvas()\n\
  117 <BtnDown>: canvas()\n\
  118 <BtnUp>: canvas()\n\
  119 ";
  120 
  121 #define Superclass  (&widgetClassRec)
  122 CanvasClassRec canvasClassRec = {
  123     /* core */
  124     {
  125      (WidgetClass) Superclass,  /* superclass */
  126      (char *) "Canvas",         /* class_name */
  127      sizeof(CanvasRec),         /* widget_size */
  128      NULL,                      /* class_initialize */
  129      NULL,                      /* class_part_initialize */
  130      False,                     /* class_inited */
  131      CanvasInitialize,          /* initialize */
  132      NULL,                      /* initialize_hook */
  133      XtInheritRealize,          /* realize */
  134      actions,                   /* actions */
  135      XtNumber(actions),         /* num_actions */
  136      resources,                 /* resources */
  137      XtNumber(resources),       /* num_resources */
  138      NULLQUARK,                 /* xrm_class */
  139      True,                      /* compress_motion */
  140      True,                      /* compress_exposure */
  141      True,                      /* compress_enterleave */
  142      False,                     /* visible_interest */
  143      NULL,                      /* destroy */
  144      CanvasResize,              /* resize */
  145      CanvasExpose,              /* expose */
  146      NULL,                      /* set_values */
  147      NULL,                      /* set_values_hook */
  148      XtInheritSetValuesAlmost,  /* set_values_almost */
  149      NULL,                      /* get_values_hook */
  150      NULL,                      /* accept_focus */
  151      XtVersion,                 /* version */
  152      NULL,                      /* callback_private */
  153      translations,              /* tm_table */
  154      XtInheritQueryGeometry,    /* query_geometry */
  155      XtInheritDisplayAccelerator,       /* display_accelerator */
  156      NULL,                      /* extension */
  157      }
  158     ,
  159     /* canvas */
  160     {
  161      NULL,                      /* extension */
  162      }
  163 };
  164 
  165 WidgetClass canvasWidgetClass = (WidgetClass) &canvasClassRec;