make the length of string proportional to the parameter to study test time dependency...

[wxWidgets.git] / src / gtk / glcanvas.cpp

diff --git a/src/gtk/glcanvas.cpp b/src/gtk/glcanvas.cpp
index 4ef6d70a22ff6ef9b942c62c5d446546a326f0ee..23d49c19a747daa79569c7ac91c80c4ca82159ea 100644 (file)
--- a/src/gtk/glcanvas.cpp
+++ b/src/gtk/glcanvas.cpp
@@ -18,212 +18,44 @@
 
 #ifndef WX_PRECOMP
     #include "wx/app.h"
 
 #ifndef WX_PRECOMP
     #include "wx/app.h"

+    #include "wx/frame.h"
+    #include "wx/colour.h"
+    #include "wx/module.h"

 #endif // WX_PRECOMP
 
 #endif // WX_PRECOMP
 

-#include "wx/frame.h"
-#include "wx/colour.h"
-#include "wx/module.h"
+#include <gtk/gtk.h>
+#include <gdk/gdkx.h>

 
 

-extern "C"
-{
-#include "gtk/gtk.h"
-#include "gdk/gdk.h"
-#include "gdk/gdkx.h"
-}
-
-#include "wx/gtk/win_gtk.h"
-#include "wx/gtk/private.h"
-
-// DLL options compatibility check:
-#include "wx/build.h"
-WX_CHECK_BUILD_OPTIONS("wxGL")
-
-
-//---------------------------------------------------------------------------
-// static variables
-//---------------------------------------------------------------------------
-int wxGLCanvas::m_glxVersion = 0;
-
-//---------------------------------------------------------------------------
-// global data
-//---------------------------------------------------------------------------
-
-XVisualInfo *g_vi = (XVisualInfo*) NULL;
-
-//---------------------------------------------------------------------------
-// wxGLContext
-//---------------------------------------------------------------------------
-
-IMPLEMENT_CLASS(wxGLContext,wxObject)
-
-wxGLContext::wxGLContext( bool WXUNUSED(isRGB), wxWindow *win, const wxPalette& WXUNUSED(palette) )
-{
-    m_window = win;
-    m_widget = win->m_wxwindow;
-
-    wxGLCanvas *gc = (wxGLCanvas*) win;
-
-    if (wxGLCanvas::GetGLXVersion() >= 13)
-    {
-        // GLX >= 1.3
-        GLXFBConfig *fbc = gc->m_fbc;
-        wxCHECK_RET( fbc, _T("invalid GLXFBConfig for OpenGl") );
-        m_glContext = glXCreateNewContext( GDK_DISPLAY(), fbc[0], GLX_RGBA_TYPE, None, GL_TRUE );
-    }
-    else
-    {
-        // GLX <= 1.2
-        XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
-        wxCHECK_RET( vi, _T("invalid visual for OpenGl") );
-        m_glContext = glXCreateContext( GDK_DISPLAY(), vi, None, GL_TRUE );
-    }
-
-    wxCHECK_RET( m_glContext, _T("Couldn't create OpenGl context") );
-}
-
-wxGLContext::wxGLContext(
-               bool WXUNUSED(isRGB), wxWindow *win,
-               const wxPalette& WXUNUSED(palette),
-               const wxGLContext *other        /* for sharing display lists */
-)
-{
-    m_window = win;
-    m_widget = win->m_wxwindow;
-
-    wxGLCanvas *gc = (wxGLCanvas*) win;
-
-    if (wxGLCanvas::GetGLXVersion() >= 13)
-    {
-        // GLX >= 1.3
-        GLXFBConfig *fbc = gc->m_fbc;
-        wxCHECK_RET( fbc, _T("invalid GLXFBConfig for OpenGl") );
-        m_glContext = glXCreateNewContext( GDK_DISPLAY(), fbc[0], GLX_RGBA_TYPE,
-                                           other ? other->m_glContext : None,
-                                           GL_TRUE );
-    }
-    else
-    {
-        // GLX <= 1.2
-        XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
-        wxCHECK_RET( vi, _T("invalid visual for OpenGl") );
-        m_glContext = glXCreateContext( GDK_DISPLAY(), vi,
-                                        other ? other->m_glContext : None,
-                                        GL_TRUE );
-    }
-
-    if ( !m_glContext )
-    {
-        wxFAIL_MSG( _T("Couldn't create OpenGl context") );
-    }
-}
-
-wxGLContext::~wxGLContext()
-{
-    if (!m_glContext) return;
-
-    if (m_glContext == glXGetCurrentContext())
-    {
-        if (wxGLCanvas::GetGLXVersion() >= 13)
-            // GLX >= 1.3
-            glXMakeContextCurrent( GDK_DISPLAY(), None, None, NULL);
-        else
-            // GLX <= 1.2
-            glXMakeCurrent( GDK_DISPLAY(), None, NULL);
-    }
-
-    glXDestroyContext( GDK_DISPLAY(), m_glContext );
-}
-
-void wxGLContext::SwapBuffers()
-{
-    if (m_glContext)
-    {
-        GdkWindow *window = GTK_PIZZA(m_widget)->bin_window;
-        glXSwapBuffers( GDK_DISPLAY(), GDK_WINDOW_XWINDOW( window ) );
-    }
-}
-
-void wxGLContext::SetCurrent()
-{
-    if (m_glContext)
-    {
-        GdkWindow *window = GTK_PIZZA(m_widget)->bin_window;
-
-        if (wxGLCanvas::GetGLXVersion() >= 13)
-            // GLX >= 1.3
-            glXMakeContextCurrent( GDK_DISPLAY(), GDK_WINDOW_XWINDOW(window),
-                                   GDK_WINDOW_XWINDOW(window), m_glContext );
-        else
-            // GLX <= 1.2
-            glXMakeCurrent( GDK_DISPLAY(), GDK_WINDOW_XWINDOW(window), m_glContext );
-    }
-}
-
-void wxGLContext::SetColour(const wxChar *colour)
-{
-    wxColour col = wxTheColourDatabase->Find(colour);
-    if (col.Ok())
-    {
-        float r = (float)(col.Red()/256.0);
-        float g = (float)(col.Green()/256.0);
-        float b = (float)(col.Blue()/256.0);
-        glColor3f( r, g, b);
-    }
-}
-
-void wxGLContext::SetupPixelFormat()
-{
-}
-
-void wxGLContext::SetupPalette( const wxPalette& WXUNUSED(palette) )
-{
-}
-
-wxPalette wxGLContext::CreateDefaultPalette()
-{
-    return wxNullPalette;
-}
+#if WXWIN_COMPATIBILITY_2_8

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// "realize" from m_wxwindow
+// "realize" from m_wxwindow: used to create m_glContext implicitly

 //-----------------------------------------------------------------------------
 
 extern "C" {
 //-----------------------------------------------------------------------------
 
 extern "C" {

-static gint
+static void

 gtk_glwindow_realized_callback( GtkWidget *WXUNUSED(widget), wxGLCanvas *win )
 {
 gtk_glwindow_realized_callback( GtkWidget *WXUNUSED(widget), wxGLCanvas *win )
 {

-    if ( !win->m_glContext )
-    {
-        wxGLContext *share = win->m_sharedContext;
-        if ( !share && win->m_sharedContextOf )
-            share = win->m_sharedContextOf->GetContext();
-
-        win->m_glContext = new wxGLContext( TRUE, win, wxNullPalette, share );
-    }
-
-    return FALSE;
+    win->GTKInitImplicitContext();

 }
 }
 
 }
 }
 

+#endif // WXWIN_COMPATIBILITY_2_8
+

 //-----------------------------------------------------------------------------
 // "map" from m_wxwindow
 //-----------------------------------------------------------------------------
 
 extern "C" {
 //-----------------------------------------------------------------------------
 // "map" from m_wxwindow
 //-----------------------------------------------------------------------------
 
 extern "C" {

-static gint
+static void

 gtk_glwindow_map_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win )
 {
 gtk_glwindow_map_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win )
 {

-    if (win->m_glContext/* && win->m_exposed*/)
-    {
-        wxPaintEvent event( win->GetId() );
-        event.SetEventObject( win );
-        win->GetEventHandler()->ProcessEvent( event );
-
-        win->m_exposed = false;
-        win->GetUpdateRegion().Clear();
-    }
+    wxPaintEvent event( win->GetId() );
+    event.SetEventObject( win );
+    win->HandleWindowEvent( event );

 
 

-    return FALSE;
+    win->m_exposed = false;
+    win->GetUpdateRegion().Clear();

 }
 }
 
 }
 }
 


@@ -232,18 +64,16 @@ gtk_glwindow_map_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win )
 //-----------------------------------------------------------------------------
 
 extern "C" {
 //-----------------------------------------------------------------------------
 
 extern "C" {

-static void
+static gboolean

 gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_event, wxGLCanvas *win )
 {
 gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_event, wxGLCanvas *win )
 {

-    if (g_isIdle)
-        wxapp_install_idle_handler();
-

     win->m_exposed = true;
 
     win->GetUpdateRegion().Union( gdk_event->area.x,
                                   gdk_event->area.y,
                                   gdk_event->area.width,
                                   gdk_event->area.height );
     win->m_exposed = true;
 
     win->GetUpdateRegion().Union( gdk_event->area.x,
                                   gdk_event->area.y,
                                   gdk_event->area.width,
                                   gdk_event->area.height );

+    return false;

 }
 }
 
 }
 }
 


@@ -253,17 +83,44 @@ gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_e
 
 extern "C" {
 static void
 
 extern "C" {
 static void

-gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxGLCanvas *win )
+gtk_glcanvas_size_callback(GtkWidget *WXUNUSED(widget),
+                           GtkAllocation * WXUNUSED(alloc),
+                           wxGLCanvas *win)

 {
 {

-    if (g_isIdle)
-        wxapp_install_idle_handler();
-

     if (!win->m_hasVMT)
         return;
 
     wxSizeEvent event( wxSize(win->m_width,win->m_height), win->GetId() );
     event.SetEventObject( win );
     if (!win->m_hasVMT)
         return;
 
     wxSizeEvent event( wxSize(win->m_width,win->m_height), win->GetId() );
     event.SetEventObject( win );

-    win->GetEventHandler()->ProcessEvent( event );
+    win->HandleWindowEvent( event );
+}
+}
+
+//-----------------------------------------------------------------------------
+// emission hook for "parent-set"
+//-----------------------------------------------------------------------------
+
+extern "C" {
+static gboolean
+parent_set_hook(GSignalInvocationHint*, guint, const GValue* param_values, void* data)
+{
+    wxGLCanvas* win = (wxGLCanvas*)data;
+    if (g_value_peek_pointer(&param_values[0]) == win->m_wxwindow)
+    {
+        const XVisualInfo* xvi = win->GetXVisualInfo();
+        GdkVisual* visual = gtk_widget_get_visual(win->m_wxwindow);
+        if (GDK_VISUAL_XVISUAL(visual)->visualid != xvi->visualid)
+        {
+            GdkScreen* screen = gtk_widget_get_screen(win->m_wxwindow);
+            visual = gdk_x11_screen_lookup_visual(screen, xvi->visualid);
+            GdkColormap* colormap = gdk_colormap_new(visual, false);
+            gtk_widget_set_colormap(win->m_wxwindow, colormap);
+            g_object_unref(colormap);
+        }
+        // remove hook
+        return false;
+    }
+    return true;

 }
 }
 
 }
 }
 


@@ -273,164 +130,114 @@ gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, w
 
 IMPLEMENT_CLASS(wxGLCanvas, wxWindow)
 
 
 IMPLEMENT_CLASS(wxGLCanvas, wxWindow)
 

-BEGIN_EVENT_TABLE(wxGLCanvas, wxWindow)
-    EVT_SIZE(wxGLCanvas::OnSize)
-END_EVENT_TABLE()
-
-wxGLCanvas::wxGLCanvas( wxWindow *parent, wxWindowID id,
-                        const wxPoint& pos, const wxSize& size,
-                        long style, const wxString& name,
-                        int *attribList,
-                        const wxPalette& palette )
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+                       wxWindowID id,
+                       const int *attribList,
+                       const wxPoint& pos,
+                       const wxSize& size,
+                       long style,
+                       const wxString& name,
+                       const wxPalette& palette)
+#if WXWIN_COMPATIBILITY_2_8
+    : m_createImplicitContext(false)
+#endif

 {
 {

-    Create( parent, NULL, NULL, id, pos, size, style, name, attribList, palette );
+    Create(parent, id, pos, size, style, name, attribList, palette);

 }
 
 }
 

-wxGLCanvas::wxGLCanvas( wxWindow *parent,
-                        const wxGLContext *shared,
-                        wxWindowID id,
-                        const wxPoint& pos, const wxSize& size,
-                        long style, const wxString& name,
-                        int *attribList,
-                        const wxPalette& palette )
+#if WXWIN_COMPATIBILITY_2_8
+
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+                       wxWindowID id,
+                       const wxPoint& pos,
+                       const wxSize& size,
+                       long style,
+                       const wxString& name,
+                       const int *attribList,
+                       const wxPalette& palette)
+    : m_createImplicitContext(true)

 {
 {

-    Create( parent, shared, NULL, id, pos, size, style, name, attribList, palette );
+    m_sharedContext = NULL;
+    m_sharedContextOf = NULL;
+
+    Create(parent, id, pos, size, style, name, attribList, palette);
+}
+
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+                       const wxGLContext *shared,
+                       wxWindowID id,
+                       const wxPoint& pos,
+                       const wxSize& size,
+                       long style,
+                       const wxString& name,
+                       const int *attribList,
+                       const wxPalette& palette)
+    : m_createImplicitContext(true)
+{
+    m_sharedContext = wx_const_cast(wxGLContext *, shared);
+
+    Create(parent, id, pos, size, style, name, attribList, palette);

 }
 
 }
 

-wxGLCanvas::wxGLCanvas( wxWindow *parent,
-                        const wxGLCanvas *shared,
-                        wxWindowID id,
-                        const wxPoint& pos, const wxSize& size,
-                        long style, const wxString& name,
-                        int *attribList,
-                        const wxPalette& palette )
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+                       const wxGLCanvas *shared,
+                       wxWindowID id,
+                       const wxPoint& pos, const wxSize& size,
+                       long style, const wxString& name,
+                       const int *attribList,
+                       const wxPalette& palette )
+    : m_createImplicitContext(true)

 {
 {

-    Create( parent, NULL, shared, id, pos, size, style, name, attribList, palette );
+    m_sharedContext = NULL;
+    m_sharedContextOf = wx_const_cast(wxGLCanvas *, shared);
+
+    Create(parent, id, pos, size, style, name, attribList, palette);

 }
 
 }
 

-bool wxGLCanvas::Create( wxWindow *parent,
-                         const wxGLContext *shared,
-                         const wxGLCanvas *shared_context_of,
-                         wxWindowID id,
-                         const wxPoint& pos, const wxSize& size,
-                         long style, const wxString& name,
-                         int *attribList,
-                         const wxPalette& palette)
+#endif // WXWIN_COMPATIBILITY_2_8
+
+bool wxGLCanvas::Create(wxWindow *parent,
+                        wxWindowID id,
+                        const wxPoint& pos,
+                        const wxSize& size,
+                        long style,
+                        const wxString& name,
+                        const int *attribList,
+                        const wxPalette& WXUNUSED_UNLESS_DEBUG(palette))

 {
 {

-    m_sharedContext = (wxGLContext*)shared;  // const_cast
-    m_sharedContextOf = (wxGLCanvas*)shared_context_of;  // const_cast
-    m_glContext = (wxGLContext*) NULL;
+    wxASSERT_MSG( !palette.IsOk(), _T("palettes not supported") );

 
     m_exposed = false;
     m_noExpose = true;
     m_nativeSizeEvent = true;
 
     m_exposed = false;
     m_noExpose = true;
     m_nativeSizeEvent = true;

-    m_fbc = NULL;
-    m_vi = NULL;

 
 

-    // to be sure the glx version is known
-    wxGLCanvas::QueryGLXVersion();
+    if ( !InitVisual(attribList) )
+        return false;

 
 

-    if (wxGLCanvas::GetGLXVersion() >= 13)
-    {
-        // GLX >= 1.3 uses a GLXFBConfig
-        GLXFBConfig * fbc = NULL;
-        if (wxTheApp->m_glFBCInfo != NULL)
-        {
-            fbc = (GLXFBConfig *) wxTheApp->m_glFBCInfo;
-            m_canFreeFBC = false; // owned by wxTheApp - don't free upon destruction
-        }
-        else
-        {
-            fbc = (GLXFBConfig *) wxGLCanvas::ChooseGLFBC(attribList);
-            m_canFreeFBC = true;
-        }
-        m_fbc = fbc;  // save for later use
-        wxCHECK_MSG( m_fbc, false, _T("required FBConfig couldn't be found") );
-    }
-
-    XVisualInfo *vi = NULL;
-    if (wxTheApp->m_glVisualInfo != NULL)
-    {
-        vi = (XVisualInfo *)wxTheApp->m_glVisualInfo;
-        m_canFreeVi = false; // owned by wxTheApp - don't free upon destruction
-    }
-    else
-    {
-        if (wxGLCanvas::GetGLXVersion() >= 13)
-        // GLX >= 1.3
-            vi = glXGetVisualFromFBConfig(GDK_DISPLAY(), m_fbc[0]);
-        else
-            // GLX <= 1.2
-            vi = (XVisualInfo *) ChooseGLVisual(attribList);
-
-        m_canFreeVi = true;
-    }
+    // watch for the "parent-set" signal on m_wxwindow so we can set colormap
+    // before m_wxwindow is realized (which will occur before
+    // wxWindow::Create() returns if parent is already visible)
+    unsigned sig_id = g_signal_lookup("parent-set", GTK_TYPE_WIDGET);
+    g_signal_add_emission_hook(sig_id, 0, parent_set_hook, this, NULL);

 
 

-    m_vi = vi;  // save for later use
+    wxWindow::Create( parent, id, pos, size, style, name );

 
 

-    wxCHECK_MSG( m_vi, false, _T("required visual couldn't be found") );
-    GdkVisual *visual;
-    GdkColormap *colormap;
+    gtk_widget_set_double_buffered(m_wxwindow, false);

 
 

-    // MR: This needs a fix for lower gtk+ versions too. Might need to rethink logic (FIXME)
-#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
-    if (!gtk_check_version(2,2,0))
-    {
-        wxWindow::Create( parent, id, pos, size, style, name );
-
-        m_glWidget = m_wxwindow;
-
-        GdkScreen *screen = gtk_widget_get_screen( m_glWidget );
-        colormap = gdk_screen_get_default_colormap(screen);
-        visual = gdk_colormap_get_visual(colormap);
-
-        if (GDK_VISUAL_XVISUAL(visual)->visualid != vi->visualid)
-        {
-            visual = gdk_x11_screen_lookup_visual( screen, vi->visualid );
-            colormap = gdk_colormap_new(visual, FALSE);
-        }
-
-        gtk_widget_set_colormap( m_glWidget, colormap );
-    }
-    else
-#endif
-    {
-        visual = gdkx_visual_get( vi->visualid );
-        colormap = gdk_colormap_new( visual, TRUE );
-
-        gtk_widget_push_colormap( colormap );
-
-        wxWindow::Create( parent, id, pos, size, style, name );
-        m_glWidget = m_wxwindow;
-    }
-
-    gtk_widget_set_double_buffered( m_glWidget, FALSE );
-
-    gtk_pizza_set_clear( GTK_PIZZA(m_wxwindow), FALSE );
-
-    g_signal_connect (m_wxwindow, "realize",
-                      G_CALLBACK (gtk_glwindow_realized_callback),
-                      this);
-    g_signal_connect (m_wxwindow, "map",
-                      G_CALLBACK (gtk_glwindow_map_callback),
-                      this);
-    g_signal_connect (m_wxwindow, "expose_event",
-                      G_CALLBACK (gtk_glwindow_expose_callback),
-                      this);
-    g_signal_connect (m_widget, "size_allocate",
-                      G_CALLBACK (gtk_glcanvas_size_callback),
-                      this);
-
-    if (gtk_check_version(2,2,0) != NULL)
-    {
-        gtk_widget_pop_colormap();
-    }
+#if WXWIN_COMPATIBILITY_2_8
+    g_signal_connect(m_wxwindow, "realize",       G_CALLBACK(gtk_glwindow_realized_callback), this);
+#endif // WXWIN_COMPATIBILITY_2_8
+    g_signal_connect(m_wxwindow, "map",           G_CALLBACK(gtk_glwindow_map_callback),      this);
+    g_signal_connect(m_wxwindow, "expose_event",  G_CALLBACK(gtk_glwindow_expose_callback),   this);
+    g_signal_connect(m_widget,   "size_allocate", G_CALLBACK(gtk_glcanvas_size_callback),     this);

 
 

+#if WXWIN_COMPATIBILITY_2_8

     // if our parent window is already visible, we had been realized before we
     // connected to the "realize" signal and hence our m_glContext hasn't been
     // initialized yet and we have to do it now
     if (GTK_WIDGET_REALIZED(m_wxwindow))
         gtk_glwindow_realized_callback( m_wxwindow, this );
     // if our parent window is already visible, we had been realized before we
     // connected to the "realize" signal and hence our m_glContext hasn't been
     // initialized yet and we have to do it now
     if (GTK_WIDGET_REALIZED(m_wxwindow))
         gtk_glwindow_realized_callback( m_wxwindow, this );

+#endif // WXWIN_COMPATIBILITY_2_8

 
     if (GTK_WIDGET_MAPPED(m_wxwindow))
         gtk_glwindow_map_callback( m_wxwindow, this );
 
     if (GTK_WIDGET_MAPPED(m_wxwindow))
         gtk_glwindow_map_callback( m_wxwindow, this );


@@ -438,200 +245,19 @@ bool wxGLCanvas::Create( wxWindow *parent,
     return true;
 }
 
     return true;
 }
 

-wxGLCanvas::~wxGLCanvas()
-{
-    GLXFBConfig * fbc = (GLXFBConfig *) m_fbc;
-    if (fbc && m_canFreeFBC)
-        XFree( fbc );
-
-    XVisualInfo *vi = (XVisualInfo *) m_vi;
-    if (vi && m_canFreeVi)
-        XFree( vi );
-
-    delete m_glContext;
-}
-
-void* wxGLCanvas::ChooseGLVisual(int *attribList)
-{
-    int data[512];
-    GetGLAttribListFromWX( attribList, data );
-    attribList = (int*) data;
-
-    Display *dpy = GDK_DISPLAY();
-
-    return glXChooseVisual( dpy, DefaultScreen(dpy), attribList );
-}
-
-void* wxGLCanvas::ChooseGLFBC(int *attribList)
-{
-    int data[512];
-    GetGLAttribListFromWX( attribList, data );
-    attribList = (int*) data;
-
-    int returned;
-    return glXChooseFBConfig( GDK_DISPLAY(), DefaultScreen(GDK_DISPLAY()),
-                              attribList, &returned );
-}
-
-
-void wxGLCanvas::GetGLAttribListFromWX(int *wx_attribList, int *gl_attribList )
-{
-    if (!wx_attribList)
-    {
-        if (wxGLCanvas::GetGLXVersion() >= 13)
-        // leave GLX >= 1.3 choose the default attributes
-            gl_attribList[0] = 0;
-        else
-        {
-            int i = 0;
-            // default settings if attriblist = 0
-            gl_attribList[i++] = GLX_RGBA;
-            gl_attribList[i++] = GLX_DOUBLEBUFFER;
-            gl_attribList[i++] = GLX_DEPTH_SIZE;   gl_attribList[i++] = 1;
-            gl_attribList[i++] = GLX_RED_SIZE;     gl_attribList[i++] = 1;
-            gl_attribList[i++] = GLX_GREEN_SIZE;   gl_attribList[i++] = 1;
-            gl_attribList[i++] = GLX_BLUE_SIZE;    gl_attribList[i++] = 1;
-            gl_attribList[i++] = GLX_ALPHA_SIZE;   gl_attribList[i++] = 0;
-            gl_attribList[i++] = None;
-        }
-    }
-    else
-    {
-        int arg=0, p=0;
-        while( (wx_attribList[arg]!=0) && (p<510) )
-        {
-            switch( wx_attribList[arg++] )
-            {
-                case WX_GL_RGBA:
-                    if (wxGLCanvas::GetGLXVersion() <= 12)
-                        // for GLX >= 1.3, GLX_RGBA is useless (setting this flags will crash on most opengl implm)
-                        gl_attribList[p++] = GLX_RGBA;
-                    break;
-                case WX_GL_BUFFER_SIZE:
-                    gl_attribList[p++] = GLX_BUFFER_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_LEVEL:
-                    gl_attribList[p++] = GLX_LEVEL;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_DOUBLEBUFFER:
-                    if (wxGLCanvas::GetGLXVersion() <= 12)
-                        gl_attribList[p++] = GLX_DOUBLEBUFFER;
-                    else
-                        // for GLX >= 1.3, GLX_DOUBLEBUFFER format is different (1 <=> True)
-                        // it seems this flag is useless for some hardware opengl implementation.
-                        // but for Mesa 6.2.1, this flag is used so don't ignore it.
-                        gl_attribList[p++] = GLX_DOUBLEBUFFER;
-                    gl_attribList[p++] = 1;
-                    break;
-                case WX_GL_STEREO:
-                    gl_attribList[p++] = GLX_STEREO;
-                    break;
-                case WX_GL_AUX_BUFFERS:
-                    gl_attribList[p++] = GLX_AUX_BUFFERS;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_RED:
-                    gl_attribList[p++] = GLX_RED_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_GREEN:
-                    gl_attribList[p++] = GLX_GREEN_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_BLUE:
-                    gl_attribList[p++] = GLX_BLUE_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_ALPHA:
-                    gl_attribList[p++] = GLX_ALPHA_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_DEPTH_SIZE:
-                    gl_attribList[p++] = GLX_DEPTH_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_STENCIL_SIZE:
-                    gl_attribList[p++] = GLX_STENCIL_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_ACCUM_RED:
-                    gl_attribList[p++] = GLX_ACCUM_RED_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_ACCUM_GREEN:
-                    gl_attribList[p++] = GLX_ACCUM_GREEN_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_ACCUM_BLUE:
-                    gl_attribList[p++] = GLX_ACCUM_BLUE_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                case WX_GL_MIN_ACCUM_ALPHA:
-                    gl_attribList[p++] = GLX_ACCUM_ALPHA_SIZE;
-                    gl_attribList[p++] = wx_attribList[arg++];
-                    break;
-                default:
-                    break;
-            }
-        }
-
-        gl_attribList[p] = 0;
-    }
-}
-
-void wxGLCanvas::QueryGLXVersion()
-{
-    if (m_glxVersion == 0)
-    {
-        // check the GLX version
-        int glxMajorVer, glxMinorVer;
-        bool ok = glXQueryVersion(GDK_DISPLAY(), &glxMajorVer, &glxMinorVer);
-        wxASSERT_MSG( ok, _T("GLX version not found") );
-        if (!ok)
-            m_glxVersion = 10; // 1.0 by default
-        else
-            m_glxVersion = glxMajorVer*10 + glxMinorVer;
-    }
-}
-
-int wxGLCanvas::GetGLXVersion()
-{
-    wxASSERT_MSG( m_glxVersion>0, _T("GLX version has not been initialized with wxGLCanvas::QueryGLXVersion()") );
-    return m_glxVersion;
-}
-
-
-void wxGLCanvas::SwapBuffers()
+Window wxGLCanvas::GetXWindow() const

 {
 {

-    if (m_glContext)
-        m_glContext->SwapBuffers();
-}
-
-void wxGLCanvas::OnSize(wxSizeEvent& WXUNUSED(event))
-{
-}
-
-void wxGLCanvas::SetCurrent()
-{
-    if (m_glContext)
-        m_glContext->SetCurrent();
-}
-
-void wxGLCanvas::SetColour( const wxChar *colour )
-{
-    if (m_glContext)
-        m_glContext->SetColour( colour );
+    GdkWindow *window = m_wxwindow->window;
+    return window ? GDK_WINDOW_XWINDOW(window) : 0;

 }
 
 void wxGLCanvas::OnInternalIdle()
 {
 }
 
 void wxGLCanvas::OnInternalIdle()
 {

-    if (m_glContext && m_exposed)
+    if (m_exposed)

     {
         wxPaintEvent event( GetId() );
         event.SetEventObject( this );
     {
         wxPaintEvent event( GetId() );
         event.SetEventObject( this );

-        GetEventHandler()->ProcessEvent( event );
+        HandleWindowEvent( event );

 
         m_exposed = false;
         GetUpdateRegion().Clear();
 
         m_exposed = false;
         GetUpdateRegion().Clear();


@@ -640,50 +266,20 @@ void wxGLCanvas::OnInternalIdle()
     wxWindow::OnInternalIdle();
 }
 
     wxWindow::OnInternalIdle();
 }
 

+#if WXWIN_COMPATIBILITY_2_8

 
 

-
-//---------------------------------------------------------------------------
-// wxGLApp
-//---------------------------------------------------------------------------
-
-IMPLEMENT_CLASS(wxGLApp, wxApp)
-
-wxGLApp::~wxGLApp()
-{
-    if (m_glFBCInfo)
-        XFree(m_glFBCInfo);
-    if (m_glVisualInfo)
-        XFree(m_glVisualInfo);
-}
-
-bool wxGLApp::InitGLVisual(int *attribList)
+void wxGLCanvas::GTKInitImplicitContext()

 {
 {

-    wxGLCanvas::QueryGLXVersion();
-
-    if (wxGLCanvas::GetGLXVersion() >= 13)
+    if ( !m_glContext && m_createImplicitContext )

     {
     {

-        // GLX >= 1.3
-        if (m_glFBCInfo)
-            XFree(m_glFBCInfo);
-        m_glFBCInfo = wxGLCanvas::ChooseGLFBC(attribList);
+        wxGLContext *share = m_sharedContext;
+        if ( !share && m_sharedContextOf )
+            share = m_sharedContextOf->m_glContext;

 
 

-        if (m_glFBCInfo)
-        {
-            if (m_glVisualInfo)
-                XFree(m_glVisualInfo);
-            m_glVisualInfo = glXGetVisualFromFBConfig(GDK_DISPLAY(), ((GLXFBConfig *)m_glFBCInfo)[0]);
-        }
-        return (m_glFBCInfo != NULL) && (m_glVisualInfo != NULL);
-    }
-    else
-    {
-        // GLX <= 1.2
-        if (m_glVisualInfo)
-            XFree(m_glVisualInfo);
-        m_glVisualInfo = wxGLCanvas::ChooseGLVisual(attribList);
-        return m_glVisualInfo != NULL;
+        m_glContext = new wxGLContext(this, share);

     }
 }
 
     }
 }
 

-#endif
-    // wxUSE_GLCANVAS
+#endif // WXWIN_COMPATIBILITY_2_8
+
+#endif // wxUSE_GLCANVAS