Added comments explaining my recent changes

[wxWidgets.git] / utils / glcanvas / gtk / glcanvas.h

diff --git a/utils/glcanvas/gtk/glcanvas.h b/utils/glcanvas/gtk/glcanvas.h
index 9b8e910bd50fe760cce28834873c81d32c937a33..b67e1ba7c830d94cdb8e0ec52433d6959eb05325 100644 (file)
--- a/utils/glcanvas/gtk/glcanvas.h
+++ b/utils/glcanvas/gtk/glcanvas.h
@@ -94,6 +94,13 @@ private:
 class wxGLCanvas: public wxScrolledWindow
 {
 public:
+   inline wxGLCanvas() {
+      m_glContext = (wxGLContext*) NULL;
+      m_sharedContext = (wxGLContext*) NULL;
+      m_glWidget = (GtkWidget*) NULL;
+      m_vi = (void*) NULL;
+      m_exposed = FALSE;
+   }
    wxGLCanvas( wxWindow *parent, wxWindowID id = -1, 
         const wxPoint& pos = wxDefaultPosition,
         const wxSize& size = wxDefaultSize, 
@@ -107,8 +114,17 @@ public:
         long style = 0, const wxString& name = "GLCanvas", 
         int *attribList = (int*) NULL, 
         const wxPalette& palette = wxNullPalette );
+   wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared = (wxGLCanvas *)NULL,
+        wxWindowID id = -1, 
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize, 
+        long style = 0, const wxString& name = "GLCanvas", 
+        int *attribList = (int*) NULL, 
+        const wxPalette& palette = wxNullPalette );
 
-   bool Create( wxWindow *parent, const wxGLContext *shared = (wxGLContext *)NULL,
+   bool Create( wxWindow *parent, 
+       const wxGLContext *shared = (wxGLContext*)NULL,
+       const wxGLCanvas *shared_context_of = (wxGLCanvas*)NULL,
         wxWindowID id = -1, 
         const wxPoint& pos = wxDefaultPosition,
         const wxSize& size = wxDefaultSize, 
@@ -132,6 +148,8 @@ public:
   
     wxGLContext      *m_glContext,
                      *m_sharedContext;
+    wxGLCanvas       *m_sharedContextOf;
+    void             *m_vi;
     GtkWidget        *m_glWidget;
     bool              m_exposed;