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+/*
+ * (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+ * Unpublished-- rights reserved under the copyright laws of the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
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 13:09:48 +0000