Fixed bug [ 754596 ] wxUSE_CONSTRAINTS 0 breaks AutoLayout() with sizers

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

diff --git a/src/gtk/glcanvas.cpp b/src/gtk/glcanvas.cpp
index ff037160c657ff184af1a24b96c902ac5a78b88f..f9599d1aa427e75eb1c8e44e92ed4e1e91c2d417 100644 (file)
--- a/src/gtk/glcanvas.cpp
+++ b/src/gtk/glcanvas.cpp
@@ -9,10 +9,13 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma implementation "glcanvas.h"
 #endif
 
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
 #include "wx/setup.h"
 
 #if wxUSE_GLCANVAS
@@ -33,6 +36,10 @@ extern "C"
 
 #include "wx/gtk/win_gtk.h"
 
+// DLL options compatibility check:
+#include "wx/build.h"
+WX_CHECK_BUILD_OPTIONS("wxGL")
+
 //---------------------------------------------------------------------------
 // global data
 //---------------------------------------------------------------------------
@@ -206,6 +213,7 @@ gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_e
 // "draw" of m_wxwindow
 //-----------------------------------------------------------------------------
 
+#ifndef __WXGTK20__
 static void
 gtk_glwindow_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxGLCanvas *win )
 {
@@ -217,6 +225,7 @@ gtk_glwindow_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxG
     win->GetUpdateRegion().Union( rect->x, rect->y,
                                   rect->width, rect->height );
 }
+#endif
 
 //-----------------------------------------------------------------------------
 // "size_allocate" of m_wxwindow
@@ -319,6 +328,10 @@ bool wxGLCanvas::Create( wxWindow *parent,
 
     m_glWidget = m_wxwindow;
 
+#ifdef __WXGTK20__
+    gtk_widget_set_double_buffered( m_glWidget, FALSE );
+#endif
+
     gtk_pizza_set_clear( GTK_PIZZA(m_wxwindow), FALSE );
 
     gtk_signal_connect( GTK_OBJECT(m_wxwindow), "realize",
@@ -330,8 +343,10 @@ bool wxGLCanvas::Create( wxWindow *parent,
     gtk_signal_connect( GTK_OBJECT(m_wxwindow), "expose_event",
         GTK_SIGNAL_FUNC(gtk_glwindow_expose_callback), (gpointer)this );
 
+#ifndef __WXGTK20__
     gtk_signal_connect( GTK_OBJECT(m_wxwindow), "draw",
         GTK_SIGNAL_FUNC(gtk_glwindow_draw_callback), (gpointer)this );
+#endif
 
     gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
         GTK_SIGNAL_FUNC(gtk_glcanvas_size_callback), (gpointer)this );