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Diffstat (limited to 'nx-X11/extras/ogl-sample/main/gfx/lib/glw/GLwDrawA.c')
| -rw-r--r-- | nx-X11/extras/ogl-sample/main/gfx/lib/glw/GLwDrawA.c | 732 |
1 files changed, 732 insertions, 0 deletions
diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glw/GLwDrawA.c b/nx-X11/extras/ogl-sample/main/gfx/lib/glw/GLwDrawA.c new file mode 100644 index 000000000..8056bd0ca --- /dev/null +++ b/nx-X11/extras/ogl-sample/main/gfx/lib/glw/GLwDrawA.c @@ -0,0 +1,732 @@ +/* +** License Applicability. Except to the extent portions of this file are +** made subject to an alternative license as permitted in the SGI Free +** Software License B, Version 1.1 (the "License"), the contents of this +** file are subject only to the provisions of the License. You may not use +** this file except in compliance with the License. You may obtain a copy +** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 +** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: +** +** http://oss.sgi.com/projects/FreeB +** +** Note that, as provided in the License, the Software is distributed on an +** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS +** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND +** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A +** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. +** +** Original Code. The Original Code is: OpenGL Sample Implementation, +** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, +** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. +** Copyright in any portions created by third parties is as indicated +** elsewhere herein. All Rights Reserved. +** +** Additional Notice Provisions: The application programming interfaces +** established by SGI in conjunction with the Original Code are The +** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released +** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version +** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X +** Window System(R) (Version 1.3), released October 19, 1998. This software +** was created using the OpenGL(R) version 1.2.1 Sample Implementation +** published by SGI, but has not been independently verified as being +** compliant with the OpenGL(R) version 1.2.1 Specification. +** +*/ +/* $XFree86$ */ + +#include <stdio.h> +#include <GL/glx.h> +#include <GL/gl.h> +#ifdef __GLX_MOTIF +#include "GLwMDrawAP.h" +#else /* not __GLX_MOTIF */ +#include "GLwDrawAP.h" +#include <X11/IntrinsicP.h> +#include <X11/StringDefs.h> +#endif /* __GLX_MOTIF */ +#include <assert.h> + +#ifdef __GLX_MOTIF +/* The MOTIF version differs only in the inclusion of the primitive + * widget class and in a vew variable and type name differences. + * Rather than put ifdefs all over the place, we just use a few defines + * to make it use motif types and names + */ +#define GLwDrawingAreaWidget GLwMDrawingAreaWidget +#define GLwDrawingAreaClassRec GLwMDrawingAreaClassRec +#define glwDrawingAreaClassRec glwMDrawingAreaClassRec +#define glwDrawingAreaWidgetClass glwMDrawingAreaWidgetClass +#define GLwDrawingAreaRec GLwMDrawingAreaRec +#endif /* __GLX_MOTIF */ + +/* forward definitions */ +/* resource default procs */ +static void createColormap(GLwDrawingAreaWidget w, + int offset, XrmValue *value); + +/* widget methods */ +static void Initialize(GLwDrawingAreaWidget req, GLwDrawingAreaWidget new, + 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); + +#define offset(field) XtOffset(GLwDrawingAreaWidget, glwDrawingArea.field) + +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 void glwInput(GLwDrawingAreaWidget glw, XEvent *event, + String *, Cardinal *); + +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}, + +#ifdef __GLX_MOTIF + /* Changes to Motif primitive resources */ + {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 /* __GLX_MOTIF */ +}; + +/* 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), + XmRCallProc, (XtPointer) _XmBackgroundColorDefault + }, + { + XmNbackgroundPixmap, XmCPixmap, XmRXmBackgroundPixmap, + sizeof (Pixmap), XtOffset(GLwDrawingAreaWidget, core.background_pixmap), + XmRImmediate, (XtPointer) XmUNSPECIFIED_PIXMAP + }, + +#else /* ! __GLX_MOTIF */ + {XtNbackground, XtCBackground, XtRPixel,sizeof(Pixel), + XtOffset(GLwDrawingAreaWidget,core.background_pixel), + XtRString, (XtPointer)"XtDefaultBackground"}, + {XtNbackgroundPixmap, XtCPixmap, XtRPixmap, sizeof(Pixmap), + XtOffset(GLwDrawingAreaWidget,core.background_pixmap), + XtRImmediate, (XtPointer)XtUnspecifiedPixmap}, +#endif /* __GLX_MOTIF */ +}; + +/* 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), + XmRCallProc, (XtPointer) _XmForegroundColorDefault + }, + + { + XmNhighlightColor, XmCHighlightColor, XmRPixel, sizeof (Pixel), + XtOffset(GLwDrawingAreaWidget, primitive.highlight_color), + XmRCallProc, (XtPointer) _XmHighlightColorDefault + }, + + { + XmNhighlightPixmap, XmCHighlightPixmap, XmRPrimHighlightPixmap, + sizeof (Pixmap), + XtOffset(GLwDrawingAreaWidget, primitive.highlight_pixmap), + XmRCallProc, (XtPointer) _XmPrimitiveHighlightPixmapDefault + }, +}; +#endif /* __GLX_MOTIF */ + +struct attribInfo +{ + int offset; + int attribute; +}; + +static struct attribInfo intAttribs[] = +{ + { offset(bufferSize), GLX_BUFFER_SIZE }, + { offset(level), GLX_LEVEL }, + { offset(auxBuffers), GLX_AUX_BUFFERS }, + { offset(redSize), GLX_RED_SIZE }, + { offset(greenSize), GLX_GREEN_SIZE }, + { offset(blueSize), GLX_BLUE_SIZE }, + { offset(alphaSize), GLX_ALPHA_SIZE }, + { offset(depthSize), GLX_DEPTH_SIZE }, + { offset(stencilSize), GLX_STENCIL_SIZE }, + { offset(accumRedSize), GLX_ACCUM_RED_SIZE }, + { offset(accumGreenSize), GLX_ACCUM_GREEN_SIZE }, + { offset(accumBlueSize), GLX_ACCUM_BLUE_SIZE }, + { offset(accumAlphaSize), GLX_ACCUM_ALPHA_SIZE }, + { 0, None }, +}; + +static struct attribInfo booleanAttribs[] = +{ + { offset(rgba), GLX_RGBA }, + { offset(doublebuffer), GLX_DOUBLEBUFFER }, + { offset(stereo), GLX_STEREO }, + { 0, None }, +}; + +#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 /* __GLX_MOTIF */ +}; + +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); +} + +/* resource initialization methods */ +/* Initialize the attribList based on the attributes */ +static void createAttribList(GLwDrawingAreaWidget w) +{ + int listLength; + register struct attribInfo *ap; + int *ip; + + /* first find out how long a list we need */ + listLength=1; /* include the terminating NULL */ + for (ap = booleanAttribs; ap->attribute; ap++) + { + if (*(Boolean *)(((char *)w)+ap->offset)) + listLength++; /* one word for a boolean */ + } + for (ap = intAttribs; ap->attribute; ap++) + { + if (*(int *)(((char *)w)+ap->offset)) + listLength+=2; /* one word for an int */ + } + w->glwDrawingArea.attribList = (int *)XtMalloc(listLength*sizeof(int)); + ip = w->glwDrawingArea.attribList; + for (ap = booleanAttribs; ap->attribute; ap++) + { + if (*(Boolean *)(((char *)w)+ap->offset)) + *ip++ = ap->attribute; + } + for (ap = intAttribs; ap->attribute; ap++) + { + if (*(int *)(((char *)w)+ap->offset)) + { + *ip++ = ap->attribute; + *ip++ = *(int *)(((char *)w)+ap->offset); + } + } + *ip = None; +} + +/* Initialize the visualInfo based on the attribute list */ +static void createVisualInfo(GLwDrawingAreaWidget w) +{ + 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; + int screen; + } *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 && + cmapCache[i].screen == w->glwDrawingArea.visualInfo->screen) + { + 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; + cmapCache[cacheEntries].screen = w->glwDrawingArea.visualInfo->screen; + value->addr = (XtPointer) (&cmapCache[cacheEntries++].cmap); +} + +static void +Initialize (GLwDrawingAreaWidget req, GLwDrawingAreaWidget new, + ArgList args, Cardinal *num_args) +{ + + if (req->core.width == 0) + new->core.width = 100; + if (req->core.height == 0) + new->core.width = 100; + + /* create the attribute list if needed */ + if (new->glwDrawingArea.attribList == NULL) + { + new->glwDrawingArea.myList = TRUE; + createAttribList(new); + } + else + new->glwDrawingArea.myList = FALSE; + + /* determine the visual info if needed */ + if (new->glwDrawingArea.visualInfo == NULL) + { + new->glwDrawingArea.myVisual = TRUE; + createVisualInfo(new); + } + else + new->glwDrawingArea.myVisual = FALSE; + + new->core.depth = new->glwDrawingArea.visualInfo->depth; + + /* Reobtain the colormap and colors in it using XtGetApplicationResources*/ + XtGetApplicationResources((Widget) new, new, + initializeResources, + XtNumber(initializeResources), + args, *num_args); + + /* obtain the color resources if appropriate */ + if (req->glwDrawingArea.allocateBackground) + XtGetApplicationResources((Widget) new, new, + backgroundResources, + XtNumber(backgroundResources), + args, *num_args); + +#ifdef __GLX_MOTIF + if (req->glwDrawingArea.allocateOtherColors) + XtGetApplicationResources((Widget) new, new, + otherColorResources, + XtNumber(otherColorResources), + args, *num_args); +#endif /* __GLX_MOTIF */ + +} + +static void +Realize(Widget w, Mask *valueMask, XSetWindowAttributes *attributes) +{ + register GLwDrawingAreaWidget glw = (GLwDrawingAreaWidget)w; + GLwDrawingAreaCallbackStruct cb; + + /* 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) + { + Widget parentShell = XtParent(w); + Status status; + Window *windowsReturn; + int countReturn; + + while (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) + { + Window windows[2]; + 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 + { + Window *windows = (Window *)XtMalloc((sizeof(Window))* + (countReturn+1)); + register int i; + windows[0] = XtWindow(w); + for (i=0; i<countReturn; i++) + windows[i+1] = windowsReturn[i]; + XSetWMColormapWindows(XtDisplay(parentShell), + XtWindow(parentShell), + windows, countReturn+1); + XtFree((char *) windows); + XFree((char *) windowsReturn); + } + } + else + warning((Widget)w, + "Could not set colormap property on parent shell"); + } + 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; + + 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 we get a resize event before being realized, we can't handle it */ + 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) +{ + if (glw->glwDrawingArea.myList && glw->glwDrawingArea.attribList) + XtFree ((XtPointer)glw->glwDrawingArea.attribList); + if (glw->glwDrawingArea.myVisual && glw->glwDrawingArea.visualInfo) + XFree ((XtPointer)glw->glwDrawingArea.visualInfo); + + /* if my colormap was installed, remove it */ + if (glw->glwDrawingArea.installColormap) + { + Widget parentShell = XtParent(glw); + Status status; + Window *windowsReturn; + int countReturn; + register int i; + + /* find the parent shell */ + while (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 copu the rest down */ + for (i++; i<countReturn; i++) + { + windowsReturn[i-1] = windowsReturn[i]; + } + XSetWMColormapWindows(XtDisplay(parentShell), + XtWindow(parentShell), + windowsReturn, countReturn-1); + break; /* from outer for */ + } + } + XFree((char *) windowsReturn); + } + } + } +} + +/* Action routine for keyboard and mouse events */ +/* ARGSUSED */ +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 +/* Provide a Motif-style create routine */ +Widget GLwCreateMDrawingArea(Widget parent, char *name, + ArgList arglist, Cardinal argcount) +{ + return (XtCreateWidget (name, glwMDrawingAreaWidgetClass, parent, arglist, + argcount)); +} +#endif |