Initial revision

1 files changed, 686 insertions, 0 deletions

diff --git a/src/glw/GLwDrawA.c b/src/glw/GLwDrawA.c
new file mode 100644
index 00000000000..670ddb18edb
--- /dev/null
+++ b/src/glw/GLwDrawA.c
@@ -0,0 +1,686 @@
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+
+/*
+ *
+ * This file has been slightly modified from the original for use with Mesa
+ *
+ *     Jeroen van der Zijp
+ *
+ *     jvz@cyberia.cfdrc.com
+ *
+ */
+#include <X11/IntrinsicP.h>
+#include <X11/StringDefs.h>
+#include <GL/glx.h>
+#include <GL/gl.h>
+#ifdef __GLX_MOTIF
+#include <Xm/PrimitiveP.h>
+#include "GLwMDrawAP.h"
+#else 
+#include "GLwDrawAP.h"
+#endif 
+#include <assert.h>
+#include <stdio.h>
+
+#ifdef __GLX_MOTIF
+#define GLwDrawingAreaWidget             GLwMDrawingAreaWidget
+#define GLwDrawingAreaClassRec           GLwMDrawingAreaClassRec
+#define glwDrawingAreaClassRec           glwMDrawingAreaClassRec
+#define glwDrawingAreaWidgetClass        glwMDrawingAreaWidgetClass
+#define GLwDrawingAreaRec                GLwMDrawingAreaRec
+#endif 
+
+#define ATTRIBLIST_SIZE 30
+
+#define offset(field) XtOffset(GLwDrawingAreaWidget,glwDrawingArea.field)
+
+
+/* forward definitions */
+static void createColormap(GLwDrawingAreaWidget w,int offset,XrmValue *value);
+static void Initialize(GLwDrawingAreaWidget req,GLwDrawingAreaWidget neww,ArgList args,Cardinal *num_args);
+static void Realize(Widget w,Mask *valueMask,XSetWindowAttributes *attributes);
+static void Redraw(GLwDrawingAreaWidget w,XEvent *event,Region region);
+static void Resize(GLwDrawingAreaWidget glw);
+static void Destroy(GLwDrawingAreaWidget glw);
+static void glwInput(GLwDrawingAreaWidget glw,XEvent *event,String *params,Cardinal *numParams);
+
+
+
+static char defaultTranslations[] =
+#ifdef __GLX_MOTIF
+     "<Key>osfHelp:PrimitiveHelp() \n"
+#endif
+    "<KeyDown>:   glwInput() \n\
+     <KeyUp>:     glwInput() \n\
+     <BtnDown>:   glwInput() \n\
+     <BtnUp>:     glwInput() \n\
+     <BtnMotion>: glwInput() ";
+
+
+static XtActionsRec actions[] = {
+  {"glwInput",(XtActionProc)glwInput},                /* key or mouse input */
+  };
+
+
+/*
+ * There is a bit of unusual handling of the resources here.
+ * Because Xt insists on allocating the colormap resource when it is
+ * processing the core resources (even if we redeclare the colormap
+ * resource here, we need to do a little trick.  When Xt first allocates
+ * the colormap, we allow it to allocate the default one, since we have
+ * not yet determined the appropriate visual (which is determined from
+ * resources parsed after the colormap).  We also let it allocate colors
+ * in that default colormap.
+ *
+ * In the initialize proc we calculate the actual visual.  Then, we
+ * reobtain the colormap resource using XtGetApplicationResources in
+ * the initialize proc.  If requested, we also reallocate colors in
+ * that colormap using the same method.
+ */
+
+static XtResource resources[] = {
+  /* The GLX attributes.  Add any new attributes here */
+
+  {GLwNbufferSize, GLwCBufferSize, XtRInt, sizeof (int),
+       offset(bufferSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNlevel, GLwCLevel, XtRInt, sizeof (int),
+       offset(level), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNrgba, GLwCRgba, XtRBoolean, sizeof (Boolean),
+       offset(rgba), XtRImmediate, (XtPointer) FALSE},
+  
+  {GLwNdoublebuffer, GLwCDoublebuffer, XtRBoolean, sizeof (Boolean),
+       offset(doublebuffer), XtRImmediate, (XtPointer) FALSE},
+  
+  {GLwNstereo, GLwCStereo, XtRBoolean, sizeof (Boolean),
+       offset(stereo), XtRImmediate, (XtPointer) FALSE},
+  
+  {GLwNauxBuffers, GLwCAuxBuffers, XtRInt, sizeof (int),
+       offset(auxBuffers), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNredSize, GLwCColorSize, XtRInt, sizeof (int),
+       offset(redSize), XtRImmediate, (XtPointer) 1},
+  
+  {GLwNgreenSize, GLwCColorSize, XtRInt, sizeof (int),
+       offset(greenSize), XtRImmediate, (XtPointer) 1},
+  
+  {GLwNblueSize, GLwCColorSize, XtRInt, sizeof (int),
+       offset(blueSize), XtRImmediate, (XtPointer) 1},
+  
+  {GLwNalphaSize, GLwCAlphaSize, XtRInt, sizeof (int),
+       offset(alphaSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNdepthSize, GLwCDepthSize, XtRInt, sizeof (int),
+       offset(depthSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNstencilSize, GLwCStencilSize, XtRInt, sizeof (int),
+       offset(stencilSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumRedSize, GLwCAccumColorSize, XtRInt, sizeof (int),
+       offset(accumRedSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumGreenSize, GLwCAccumColorSize, XtRInt, sizeof (int),
+       offset(accumGreenSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumBlueSize, GLwCAccumColorSize, XtRInt, sizeof (int),
+       offset(accumBlueSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumAlphaSize, GLwCAccumAlphaSize, XtRInt, sizeof (int),
+       offset(accumAlphaSize), XtRImmediate, (XtPointer) 0},
+  
+  /* the attribute list */
+  {GLwNattribList, GLwCAttribList, XtRPointer, sizeof(int *),
+       offset(attribList), XtRImmediate, (XtPointer) NULL},
+
+  /* the visual info */
+  {GLwNvisualInfo, GLwCVisualInfo, GLwRVisualInfo, sizeof (XVisualInfo *),
+       offset(visualInfo), XtRImmediate, (XtPointer) NULL},
+
+  /* miscellaneous resources */
+  {GLwNinstallColormap, GLwCInstallColormap, XtRBoolean, sizeof (Boolean),
+       offset(installColormap), XtRImmediate, (XtPointer) TRUE},
+
+  {GLwNallocateBackground, GLwCAllocateColors, XtRBoolean, sizeof (Boolean),
+       offset(allocateBackground), XtRImmediate, (XtPointer) FALSE},
+
+  {GLwNallocateOtherColors, GLwCAllocateColors, XtRBoolean, sizeof (Boolean),
+       offset(allocateOtherColors), XtRImmediate, (XtPointer) FALSE},
+
+  {GLwNinstallBackground, GLwCInstallBackground, XtRBoolean, sizeof (Boolean),
+       offset(installBackground), XtRImmediate, (XtPointer) TRUE},
+
+  {GLwNginitCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(ginitCallback), XtRImmediate, (XtPointer) NULL},
+
+  {GLwNinputCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(inputCallback), XtRImmediate, (XtPointer) NULL},
+
+  {GLwNresizeCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(resizeCallback), XtRImmediate, (XtPointer) NULL},
+
+  {GLwNexposeCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(exposeCallback), XtRImmediate, (XtPointer) NULL},
+
+  /* Changes to Motif primitive resources */
+#ifdef __GLX_MOTIF
+  {XmNtraversalOn, XmCTraversalOn, XmRBoolean, sizeof (Boolean),
+   XtOffset (GLwDrawingAreaWidget, primitive.traversal_on), XmRImmediate,
+   (XtPointer)FALSE},
+  
+  /* highlighting is normally disabled, as when Motif tries to disable
+   * highlighting, it tries to reset the color back to the parent's
+   * background (usually Motif blue).  Unfortunately, that is in a
+   * different colormap, and doesn't work too well.
+   */
+  {XmNhighlightOnEnter, XmCHighlightOnEnter, XmRBoolean, sizeof (Boolean),
+   XtOffset (GLwDrawingAreaWidget, primitive.highlight_on_enter),
+   XmRImmediate, (XtPointer) FALSE},
+  
+  {XmNhighlightThickness, XmCHighlightThickness, XmRHorizontalDimension,
+   sizeof (Dimension),
+   XtOffset (GLwDrawingAreaWidget, primitive.highlight_thickness),
+   XmRImmediate, (XtPointer) 0},
+#endif 
+  };
+
+
+/*
+** The following resources are reobtained using XtGetApplicationResources
+** in the initialize proc.
+*/
+
+/* The colormap */
+static XtResource initializeResources[] = {
+  /* reobtain the colormap with the new visual */
+  {XtNcolormap, XtCColormap, XtRColormap, sizeof(Colormap),
+   XtOffset(GLwDrawingAreaWidget, core.colormap),
+   XtRCallProc,(XtPointer) createColormap},
+  };
+
+
+/* reallocate any colors we need in the new colormap */
+  
+/* The background is obtained only if the allocateBackground resource is TRUE*/
+static XtResource backgroundResources[] = {
+#ifdef __GLX_MOTIF
+  {XmNbackground, XmCBackground,XmRPixel, 
+   sizeof(Pixel),XtOffset(GLwDrawingAreaWidget,core.background_pixel),
+   XmRString,(XtPointer)"lightgrey"},
+   /*XmRCallProc,(XtPointer)_XmBackgroundColorDefault},*/
+
+  {XmNbackgroundPixmap,XmCPixmap,XmRXmBackgroundPixmap, 
+   sizeof(Pixmap),XtOffset(GLwDrawingAreaWidget,core.background_pixmap),
+   XmRImmediate,(XtPointer)XmUNSPECIFIED_PIXMAP},
+
+#else
+  {XtNbackground,XtCBackground,XtRPixel,sizeof(Pixel),
+   XtOffset(GLwDrawingAreaWidget,core.background_pixel),
+   XtRString,(XtPointer)"lightgrey"},
+   /*XtRString,(XtPointer)"XtDefaultBackground"},*/
+
+  {XtNbackgroundPixmap, XtCPixmap, XtRPixmap, sizeof(Pixmap),
+   XtOffset(GLwDrawingAreaWidget,core.background_pixmap),
+   XtRImmediate,(XtPointer)XtUnspecifiedPixmap},
+#endif  
+  };
+
+
+
+/* The other colors such as the foreground are allocated only if
+ * allocateOtherColors are set.  These resources only exist in Motif.
+ */
+#ifdef __GLX_MOTIF
+static XtResource otherColorResources[] = {
+  {XmNforeground,XmCForeground,XmRPixel, 
+   sizeof(Pixel),XtOffset(GLwDrawingAreaWidget,primitive.foreground),
+   XmRString,(XtPointer)"lighgrey"},
+   /*XmRCallProc, (XtPointer) _XmForegroundColorDefault},*/
+
+  {XmNhighlightColor,XmCHighlightColor,XmRPixel,sizeof(Pixel),
+   XtOffset(GLwDrawingAreaWidget,primitive.highlight_color),
+   XmRString,(XtPointer)"lightgrey"},
+   /*XmRCallProc,(XtPointer)_XmHighlightColorDefault},*/
+
+  {XmNhighlightPixmap,XmCHighlightPixmap,XmRPrimHighlightPixmap,
+   sizeof(Pixmap),
+   XtOffset(GLwDrawingAreaWidget,primitive.highlight_pixmap),
+   XmRImmediate,(XtPointer)XmUNSPECIFIED_PIXMAP},
+   /*XmRCallProc,(XtPointer)_XmPrimitiveHighlightPixmapDefault},*/
+  };
+#endif
+
+
+#undef offset
+
+
+GLwDrawingAreaClassRec glwDrawingAreaClassRec = {
+  { /* core fields */
+#ifdef __GLX_MOTIF
+    /* superclass                */        (WidgetClass) &xmPrimitiveClassRec,
+    /* class_name                */        "GLwMDrawingArea",
+#else /* not __GLX_MOTIF */
+    /* superclass                */        (WidgetClass) &widgetClassRec,
+    /* class_name                */        "GLwDrawingArea",
+#endif /* __GLX_MOTIF */
+    /* widget_size               */        sizeof(GLwDrawingAreaRec),
+    /* class_initialize          */        NULL,
+    /* class_part_initialize     */        NULL,
+    /* class_inited              */        FALSE,
+    /* initialize                */        (XtInitProc) Initialize,
+    /* initialize_hook           */        NULL,
+    /* realize                   */        Realize,
+    /* actions                   */        actions,
+    /* num_actions               */        XtNumber(actions),
+    /* resources                 */        resources,
+    /* num_resources             */        XtNumber(resources),
+    /* xrm_class                 */        NULLQUARK,
+    /* compress_motion           */        TRUE,
+    /* compress_exposure         */        TRUE,
+    /* compress_enterleave       */        TRUE,
+    /* visible_interest          */        TRUE,
+    /* destroy                   */        (XtWidgetProc) Destroy,
+    /* resize                    */        (XtWidgetProc) Resize,
+    /* expose                    */        (XtExposeProc) Redraw,
+    /* set_values                */        NULL,
+    /* set_values_hook           */        NULL,
+    /* set_values_almost         */        XtInheritSetValuesAlmost,
+    /* get_values_hook           */        NULL,
+    /* accept_focus              */        NULL,
+    /* version                   */        XtVersion,
+    /* callback_private          */        NULL,
+    /* tm_table                  */        defaultTranslations,
+    /* query_geometry            */        XtInheritQueryGeometry,
+    /* display_accelerator       */        XtInheritDisplayAccelerator,
+    /* extension                 */        NULL
+  },
+#ifdef __GLX_MOTIF /* primitive resources */
+  {
+    /* border_highlight          */        XmInheritBorderHighlight,
+    /* border_unhighlight        */        XmInheritBorderUnhighlight,
+    /* translations              */        XtInheritTranslations,
+    /* arm_and_activate          */        NULL,
+    /* get_resources             */        NULL,
+    /* num get_resources         */        0,
+    /* extension                 */        NULL,                                
+  }
+#endif 
+  };
+
+WidgetClass glwDrawingAreaWidgetClass=(WidgetClass)&glwDrawingAreaClassRec;
+
+
+
+static void error(Widget w,char* string){
+  char buf[100];
+#ifdef __GLX_MOTIF
+  sprintf(buf,"GLwMDrawingArea: %s\n",string);
+#else
+  sprintf(buf,"GLwDrawingArea: %s\n",string);
+#endif
+  XtAppError(XtWidgetToApplicationContext(w),buf);
+  }
+
+
+static void warning(Widget w,char* string){
+  char buf[100];
+#ifdef __GLX_MOTIF
+  sprintf (buf, "GLwMDraw: %s\n", string);
+#else
+  sprintf (buf, "GLwDraw: %s\n", string);
+#endif
+  XtAppWarning(XtWidgetToApplicationContext(w), buf);
+  }
+
+
+
+/* Initialize the attribList based on the attributes */
+static void createAttribList(GLwDrawingAreaWidget w){
+  int *ptr;
+  w->glwDrawingArea.attribList = (int*)XtMalloc(ATTRIBLIST_SIZE*sizeof(int));
+  if(!w->glwDrawingArea.attribList){
+    error((Widget)w,"Unable to allocate attribute list");
+    }
+  ptr = w->glwDrawingArea.attribList;
+  *ptr++ = GLX_BUFFER_SIZE;
+  *ptr++ = w->glwDrawingArea.bufferSize;
+  *ptr++ = GLX_LEVEL;
+  *ptr++ = w->glwDrawingArea.level;
+  if(w->glwDrawingArea.rgba) *ptr++ = GLX_RGBA;
+  if(w->glwDrawingArea.doublebuffer) *ptr++ = GLX_DOUBLEBUFFER;
+  if(w->glwDrawingArea.stereo) *ptr++ = GLX_STEREO;
+  *ptr++ = GLX_AUX_BUFFERS;
+  *ptr++ = w->glwDrawingArea.auxBuffers;
+  *ptr++ = GLX_RED_SIZE;
+  *ptr++ = w->glwDrawingArea.redSize;
+  *ptr++ = GLX_GREEN_SIZE;
+  *ptr++ = w->glwDrawingArea.greenSize;
+  *ptr++ = GLX_BLUE_SIZE;
+  *ptr++ = w->glwDrawingArea.blueSize;
+  *ptr++ = GLX_ALPHA_SIZE;
+  *ptr++ = w->glwDrawingArea.alphaSize;
+  *ptr++ = GLX_DEPTH_SIZE;
+  *ptr++ = w->glwDrawingArea.depthSize;
+  *ptr++ = GLX_STENCIL_SIZE;
+  *ptr++ = w->glwDrawingArea.stencilSize;
+  *ptr++ = GLX_ACCUM_RED_SIZE;
+  *ptr++ = w->glwDrawingArea.accumRedSize;
+  *ptr++ = GLX_ACCUM_GREEN_SIZE;
+  *ptr++ = w->glwDrawingArea.accumGreenSize;
+  *ptr++ = GLX_ACCUM_BLUE_SIZE;
+  *ptr++ = w->glwDrawingArea.accumBlueSize;
+  *ptr++ = GLX_ACCUM_ALPHA_SIZE;
+  *ptr++ = w->glwDrawingArea.accumAlphaSize;
+  *ptr++ = None;
+  assert((ptr-w->glwDrawingArea.attribList)<ATTRIBLIST_SIZE);
+  }
+
+
+
+/* Initialize the visualInfo based on the attribute list */
+static void createVisualInfo(GLwDrawingAreaWidget w){
+  static XVisualInfo *visualInfo;
+  assert(w->glwDrawingArea.attribList);
+  w->glwDrawingArea.visualInfo=glXChooseVisual(XtDisplay(w),XScreenNumberOfScreen(XtScreen(w)),w->glwDrawingArea.attribList);
+  if(!w->glwDrawingArea.visualInfo) error((Widget)w,"requested visual not supported");
+  }
+
+
+
+/* Initialize the colormap based on the visual info.
+ * This routine maintains a cache of visual-infos to colormaps.  If two
+ * widgets share the same visual info, they share the same colormap.
+ * This function is called by the callProc of the colormap resource entry.
+ */
+static void createColormap(GLwDrawingAreaWidget w,int offset,XrmValue *value){
+  static struct cmapCache { Visual *visual; Colormap cmap; } *cmapCache;
+  static int cacheEntries=0;
+  static int cacheMalloced=0;
+  register int i;
+    
+  assert(w->glwDrawingArea.visualInfo);
+
+  /* see if we can find it in the cache */
+  for(i=0; i<cacheEntries; i++){
+    if(cmapCache[i].visual==w->glwDrawingArea.visualInfo->visual){
+      value->addr=(XtPointer)(&cmapCache[i].cmap);
+      return;
+      }
+    }
+
+  /* not in the cache, create a new entry */
+  if(cacheEntries >= cacheMalloced){
+    /* need to malloc a new one.  Since we are likely to have only a
+     * few colormaps, we allocate one the first time, and double
+     * each subsequent time.
+     */
+    if(cacheMalloced==0){
+      cacheMalloced=1;
+      cmapCache=(struct cmapCache*)XtMalloc(sizeof(struct cmapCache));
+      }
+    else{
+      cacheMalloced<<=1;
+      cmapCache=(struct cmapCache*)XtRealloc((char*)cmapCache,sizeof(struct cmapCache)*cacheMalloced);
+      }
+    }
+       
+  cmapCache[cacheEntries].cmap=XCreateColormap(XtDisplay(w),
+                                               RootWindow(XtDisplay(w),
+                                               w->glwDrawingArea.visualInfo->screen),
+                                               w->glwDrawingArea.visualInfo->visual,
+                                               AllocNone);
+  cmapCache[cacheEntries].visual=w->glwDrawingArea.visualInfo->visual;
+  value->addr=(XtPointer)(&cmapCache[cacheEntries++].cmap);
+  }
+
+
+
+static void Initialize(GLwDrawingAreaWidget req,GLwDrawingAreaWidget neww,ArgList args,Cardinal *num_args){
+
+  /* fix size */
+  if(req->core.width==0) neww->core.width=100;
+  if(req->core.height==0) neww->core.width=100;
+
+  /* create the attribute list if needed */
+  neww->glwDrawingArea.myList=FALSE;
+  if(neww->glwDrawingArea.attribList==NULL){
+    neww->glwDrawingArea.myList=TRUE;
+    createAttribList(neww);
+    }
+
+  /* Gotta have it */
+  assert(neww->glwDrawingArea.attribList);
+
+  /* determine the visual info if needed */
+  neww->glwDrawingArea.myVisual=FALSE;
+  if(neww->glwDrawingArea.visualInfo==NULL){
+    neww->glwDrawingArea.myVisual=TRUE;
+    createVisualInfo(neww);
+    }
+
+  /* Gotta have that too */
+  assert(neww->glwDrawingArea.visualInfo);
+
+  neww->core.depth=neww->glwDrawingArea.visualInfo->depth;
+
+  /* Reobtain the colormap and colors in it using XtGetApplicationResources*/
+  XtGetApplicationResources((Widget)neww,neww,initializeResources,XtNumber(initializeResources),args,*num_args);
+
+  /* obtain the color resources if appropriate */
+  if(req->glwDrawingArea.allocateBackground){
+    XtGetApplicationResources((Widget)neww,neww,backgroundResources,XtNumber(backgroundResources),args,*num_args);
+    }
+
+#ifdef __GLX_MOTIF
+  if(req->glwDrawingArea.allocateOtherColors){
+    XtGetApplicationResources((Widget)neww,neww,otherColorResources,XtNumber(otherColorResources),args,*num_args);
+    }
+#endif 
+  }
+
+
+
+static void Realize(Widget w,Mask *valueMask,XSetWindowAttributes *attributes){
+  register GLwDrawingAreaWidget glw=(GLwDrawingAreaWidget)w;
+  GLwDrawingAreaCallbackStruct cb;
+  Widget parentShell;
+  Status status;
+  Window windows[2],*windowsReturn,*windowList;
+  int countReturn,i;
+   
+  /* if we haven't requested that the background be both installed and
+   * allocated, don't install it.
+   */
+  if(!(glw->glwDrawingArea.installBackground && glw->glwDrawingArea.allocateBackground)){
+    *valueMask&=~CWBackPixel;
+    }
+ 
+  XtCreateWindow(w,(unsigned int)InputOutput,glw->glwDrawingArea.visualInfo->visual,*valueMask,attributes);
+
+  /* if appropriate, call XSetWMColormapWindows to install the colormap */
+  if(glw->glwDrawingArea.installColormap){
+
+    /* Get parent shell */
+    for(parentShell=XtParent(w); parentShell&&!XtIsShell(parentShell); parentShell=XtParent(parentShell));
+
+    if(parentShell && XtWindow(parentShell)){
+
+      /* check to see if there is already a property */
+      status=XGetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),&windowsReturn,&countReturn);
+            
+      /* if no property, just create one */
+      if(!status){
+        windows[0]=XtWindow(w);
+        windows[1]=XtWindow(parentShell);
+        XSetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),windows,2);
+        }
+
+      /* there was a property, add myself to the beginning */
+      else{
+        windowList=(Window *)XtMalloc((sizeof(Window))*(countReturn+1));
+        windowList[0]=XtWindow(w);
+        for(i=0; i<countReturn; i++) windowList[i+1]=windowsReturn[i];
+        XSetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),windowList,countReturn+1);
+        XtFree((char*)windowList);
+        XtFree((char*)windowsReturn);
+        }
+      }
+    else{
+      warning(w,"Could not set colormap property on parent shell");
+      }
+    }
+
+  /* Invoke callbacks */
+  cb.reason=GLwCR_GINIT;
+  cb.event=NULL;
+  cb.width=glw->core.width;
+  cb.height=glw->core.height;
+  XtCallCallbackList((Widget)glw,glw->glwDrawingArea.ginitCallback,&cb);
+  }
+
+
+
+static void Redraw(GLwDrawingAreaWidget w,XEvent *event,Region region){
+  GLwDrawingAreaCallbackStruct cb;
+  XtCallbackList cblist;
+  if(!XtIsRealized((Widget)w)) return;
+  cb.reason=GLwCR_EXPOSE;
+  cb.event=event;
+  cb.width=w->core.width;
+  cb.height=w->core.height;
+  XtCallCallbackList((Widget)w,w->glwDrawingArea.exposeCallback,&cb);
+  }
+
+
+
+static void Resize(GLwDrawingAreaWidget glw){
+  GLwDrawingAreaCallbackStruct cb;
+  if(!XtIsRealized((Widget)glw)) return;
+  cb.reason=GLwCR_RESIZE;
+  cb.event=NULL;
+  cb.width=glw->core.width;
+  cb.height=glw->core.height;
+  XtCallCallbackList((Widget)glw,glw->glwDrawingArea.resizeCallback,&cb);
+  }
+
+
+
+static void Destroy(GLwDrawingAreaWidget glw){
+  Window *windowsReturn;
+  Widget parentShell;
+  Status status;
+  int countReturn;
+  register int i;
+
+  if(glw->glwDrawingArea.myList && glw->glwDrawingArea.attribList){
+    XtFree((XtPointer)glw->glwDrawingArea.attribList);
+    }
+
+  if(glw->glwDrawingArea.myVisual && glw->glwDrawingArea.visualInfo){
+    XtFree((XtPointer)glw->glwDrawingArea.visualInfo);
+    }
+
+  /* if my colormap was installed, remove it */
+  if(glw->glwDrawingArea.installColormap){
+
+    /* Get parent shell */
+    for(parentShell=XtParent(glw); parentShell&&!XtIsShell(parentShell); parentShell=XtParent(parentShell));
+
+    if(parentShell && XtWindow(parentShell)){
+
+      /* make sure there is a property */
+      status=XGetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),&windowsReturn,&countReturn);
+            
+      /* if no property, just return.  If there was a property, continue */
+      if(status){
+
+        /* search for a match */
+        for(i=0; i<countReturn; i++){
+          if(windowsReturn[i]==XtWindow(glw)){
+
+            /* we found a match, now copy the rest down */
+            for(i++; i<countReturn; i++){ windowsReturn[i-1]=windowsReturn[i]; }
+
+            XSetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),windowsReturn,countReturn-1);
+            break; 
+            }
+          }
+        XtFree((char *)windowsReturn);
+        }
+      }
+    }
+  }
+
+
+
+/* Action routine for keyboard and mouse events */
+static void glwInput(GLwDrawingAreaWidget glw,XEvent *event,String *params,Cardinal *numParams){
+  GLwDrawingAreaCallbackStruct cb;
+  cb.reason=GLwCR_INPUT;
+  cb.event=event;
+  cb.width=glw->core.width;
+  cb.height=glw->core.height;
+  XtCallCallbackList((Widget)glw,glw->glwDrawingArea.inputCallback,&cb);
+  }
+
+
+#ifdef __GLX_MOTIF
+
+/* Create routine */
+Widget GLwCreateMDrawingArea(Widget parent, char *name,ArgList arglist,Cardinal argcount){
+  return XtCreateWidget(name,glwMDrawingAreaWidgetClass, parent, arglist,argcount);
+  }
+
+#endif
+
+
+#ifndef __GLX_MOTIF
+
+/* Make context current */
+void GLwDrawingAreaMakeCurrent(Widget w,GLXContext ctx){
+  glXMakeCurrent(XtDisplay(w),XtWindow(w),ctx);
+  }
+
+
+/* Swap buffers convenience function */
+void GLwDrawingAreaSwapBuffers(Widget w){
+  glXSwapBuffers(XtDisplay(w),XtWindow(w));
+  }
+
+#endif