X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dc3065a56f1febf3de3b3bbf0904cf8fdc7f7c50..0bbe61b8c18a1795189f0cf73cc61c14a0fb846d:/src/common/glcmn.cpp

diff --git a/src/common/glcmn.cpp b/src/common/glcmn.cpp
index ffcb45a603..07db44d4c8 100644
--- a/src/common/glcmn.cpp
+++ b/src/common/glcmn.cpp
@@ -41,17 +41,28 @@ IMPLEMENT_CLASS(wxGLApp, wxApp)
 // implementation
 // ============================================================================
 
-void wxGLCanvasBase::SetCurrent(const wxGLContext& context) const
+wxGLCanvasBase::wxGLCanvasBase()
+{
+#if WXWIN_COMPATIBILITY_2_8
+    m_glContext = NULL;
+#endif
+
+    // we always paint background entirely ourselves so prevent wx from erasing
+    // it to avoid flicker
+    SetBackgroundStyle(wxBG_STYLE_CUSTOM);
+}
+
+bool wxGLCanvasBase::SetCurrent(const wxGLContext& context) const
 {
     // although on MSW it works even if the window is still hidden, it doesn't
     // work in other ports (notably X11-based ones) and documentation mentions
     // that SetCurrent() can only be called for a shown window, so check for it
     wxASSERT_MSG( IsShownOnScreen(), _T("can't make hidden GL canvas current") );
 
-    context.SetCurrent(*wx_static_cast(const wxGLCanvas *, this));
+    return context.SetCurrent(*wx_static_cast(const wxGLCanvas *, this));
 }
 
-bool wxGLCanvasBase::SetColour(const wxChar *colour)
+bool wxGLCanvasBase::SetColour(const wxString& colour)
 {
     wxColour col = wxTheColourDatabase->Find(colour);
     if ( !col.Ok() )