Removed old wxGLCanvas stuff; moved wxTreeLayout to wxWindows; corrected some doc...

[wxWidgets.git] / utils / glcanvas / motif / glcanvas.cpp

diff --git a/utils/glcanvas/motif/glcanvas.cpp b/utils/glcanvas/motif/glcanvas.cpp
deleted file mode 100644 (file)
index 0933fb7..0000000
--- a/utils/glcanvas/motif/glcanvas.cpp
+++ /dev/null
@@ -1,161 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////
-// Name:        glcanvas.cpp
-// Purpose:     wxGLCanvas, for using OpenGL with wxWindows 2.0 for Motif.
-//              Uses the GLX extension.
-// Author:      Julian Smart and Wolfram Gloger
-// Modified by:
-// Created:     1995, 1999
-// RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart, Wolfram Gloger
-// Licence:    wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation "glcanvas.h"
-#endif
-
-#include "glcanvas.h"
-#include "wx/utils.h"
-#include "wx/app.h"
-
-#include <Xm/Xm.h>
-#include "wx/motif/private.h"
-
-#ifdef OLD_MESA
-// workaround for bug in Mesa's glx.c
-static int bitcount( unsigned long n )
-{
-    int bits;
-    for (bits=0; n>0;) {
-       if(n & 1) bits++;
-       n = n >> 1;
-    }
-    return bits;
-}
-#endif
-
-/*
- * GLCanvas implementation
- */
-
-IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow)
-
-wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos,
-  const wxSize& size, long style, 
-  const wxString& name, int *attrib_list, const wxPalette& palette):
-    wxScrolledWindow(parent, id, pos, size, style, name)
-{
-    XVisualInfo *vi, vi_templ;
-    XWindowAttributes xwa;
-    int val, n;
-
-    Display* display = (Display*) GetXDisplay();
-
-    glx_cx = 0;
-    // Check for the presence of the GLX extension
-    if(!glXQueryExtension(display, NULL, NULL)) {
-       wxDebugMsg("wxGLCanvas: GLX extension is missing\n");
-       return;
-    }
-
-    if(attrib_list) {
-       // Get an appropriate visual
-       vi = glXChooseVisual(display, DefaultScreen(display), attrib_list);
-       if(!vi) return;
-
-       // Here we should make sure that vi is the same visual as the
-       // one used by the xwindow drawable in wxCanvas.  However,
-       // there is currently no mechanism for this in wx_canvs.cc.
-    } else {
-       // By default, we use the visual of xwindow
-       XGetWindowAttributes(display, (Window) GetXWindow(), &xwa);
-       vi_templ.visualid = XVisualIDFromVisual(xwa.visual);
-       vi = XGetVisualInfo(display, VisualIDMask, &vi_templ, &n);
-       if(!vi) return;
-       glXGetConfig(display, vi, GLX_USE_GL, &val);
-       if(!val) return;
-       // Basically, this is it.  It should be possible to use vi
-       // in glXCreateContext() below.  But this fails with Mesa.
-       // I notified the Mesa author about it; there may be a fix.
-#ifdef OLD_MESA
-       // Construct an attribute list matching the visual
-       int a_list[32];
-       n = 0;
-       if(vi->c_class==TrueColor || vi->c_class==DirectColor) { // RGBA visual
-           a_list[n++] = GLX_RGBA;
-           a_list[n++] = GLX_RED_SIZE;
-           a_list[n++] = bitcount(vi->red_mask);
-           a_list[n++] = GLX_GREEN_SIZE;
-           a_list[n++] = bitcount(vi->green_mask);
-           a_list[n++] = GLX_BLUE_SIZE;
-           a_list[n++] = bitcount(vi->blue_mask);
-           glXGetConfig(display, vi, GLX_ALPHA_SIZE, &val);
-           a_list[n++] = GLX_ALPHA_SIZE;
-           a_list[n++] = val;
-       } else { // Color index visual
-           glXGetConfig(display, vi, GLX_BUFFER_SIZE, &val);
-           a_list[n++] = GLX_BUFFER_SIZE;
-           a_list[n++] = val;
-       }
-       a_list[n] = None;
-       XFree(vi);
-       vi = glXChooseVisual(display, DefaultScreen(display), a_list);
-       if(!vi) return;
-#endif /* OLD_MESA */
-    }
-
-    // Create the GLX context and make it current
-    glx_cx = glXCreateContext(display, vi, 0, GL_TRUE);
-#ifndef OLD_MESA
-    XFree(vi);
-#endif
-    SetCurrent();
-}
-
-wxGLCanvas::~wxGLCanvas(void)
-{
-    Display* display = (Display*) GetXDisplay();
-    if(glx_cx) glXDestroyContext(display, glx_cx);
-}
-
-void wxGLCanvas::SwapBuffers()
-{
-    Display* display = (Display*) GetXDisplay();
-    if(glx_cx) glXSwapBuffers(display, (Window) GetXWindow());
-}
-
-void wxGLCanvas::SetCurrent()
-{
-    Display* display = (Display*) GetXDisplay();
-    if(glx_cx) glXMakeCurrent(display, (Window) GetXWindow(), glx_cx);
-}
-
-void wxGLCanvas::SetColour(const char *col)
-{
-    wxColour *the_colour = wxTheColourDatabase->FindColour(col);
-    if(the_colour) {
-       GLboolean b;
-       glGetBooleanv(GL_RGBA_MODE, &b);
-       if(b) {
-           glColor3ub(the_colour->Red(),
-                      the_colour->Green(),
-                      the_colour->Blue());
-       } else {
-           GLint pix = (GLint)the_colour->m_pixel;
-           if(pix == -1) {
-               XColor exact_def;
-               exact_def.red = (unsigned short)the_colour->Red() << 8;
-               exact_def.green = (unsigned short)the_colour->Green() << 8;
-               exact_def.blue = (unsigned short)the_colour->Blue() << 8;
-               exact_def.flags = DoRed | DoGreen | DoBlue;
-               if(!XAllocColor((Display*) GetXDisplay(), (Colormap) wxTheApp->GetMainColormap(GetXDisplay()), &exact_def)) {
-                   wxDebugMsg("wxGLCanvas: cannot allocate color\n");
-                   return;
-               }
-               pix = the_colour->m_pixel = exact_def.pixel;
-           }
-           glIndexi(pix);
-       }
-    }
-}
-