OSX implementation of wxOverlay (speedups board operations) and cleanup

include/class_drawpanel.h

@@ -8,6 +8,7 @@
 
 #include "colors.h"
 #include "base_struct.h"
+#include <wx/overlay.h>
 
 class WinEDA_DrawFrame;
 class BASE_SCREEN;
@@ -60,6 +61,10 @@ public:
     int  m_CursorLevel;                     // Index for cursor redraw in XOR
                                             // mode
 
+#ifdef __WXMAC__
+    // MAC Uses overlay to workaround the wxINVERT and wxXOR miss
+    wxOverlay               m_overlay; 
+#endif
     /* Cursor management (used in editing functions) */
 
     /* Mouse capture move callback function prototype. */

pcbnew/controle.cpp

@@ -362,11 +362,17 @@ void WinEDA_PcbFrame::GeneralControle( wxDC* DC, wxPoint Mouse )
         if( DrawPanel->ManageCurseur )
         {
 #ifdef __WXMAC__
-            DrawPanel->Refresh();
-            DrawPanel->Update();
-#endif
+            wxDCOverlay oDC( DrawPanel->m_overlay, DC ); 
+            oDC.Clear(); 
+            DrawPanel->ManageCurseur( DrawPanel, DC, FALSE );
+#else
             DrawPanel->ManageCurseur( DrawPanel, DC, TRUE );
+#endif
         }
+#ifdef __WXMAC__
+        else
+            DrawPanel->m_overlay.Reset(); 
+#endif
     }
 
     if( hotkey )

pcbnew/modules.cpp

@@ -571,11 +571,8 @@ void DrawModuleOutlines( WinEDA_DrawPanel* panel, wxDC* DC, MODULE* module )
     if( g_Show_Pads_Module_in_Move )
     {
         pad_fill_tmp = DisplayOpt.DisplayPadFill;
-#ifndef __WXMAC__
         DisplayOpt.DisplayPadFill = true;
-#else
-        DisplayOpt.DisplayPadFill = false;
-#endif
+
         pt_pad = module->m_Pads;
         for( ; pt_pad != NULL; pt_pad = pt_pad->Next() )
         {

pcbnew/tracepcb.cpp

@@ -18,6 +18,7 @@
 #include "module_editor_frame.h"
 #include "pcbplot.h"
 #include "protos.h"
+#include <wx/overlay.h>
 
 extern int g_DrawDefaultLineThickness; // Default line thickness, used to draw Frame references
 
@@ -53,6 +54,12 @@ void WinEDA_ModuleEditFrame::RedrawActiveWindow( wxDC* DC, bool EraseBg )
         module->Draw( DrawPanel, DC, GR_OR );
     }
 
+#ifdef __WXMAC__
+    DrawPanel->m_overlay.Reset(); 
+    wxDCOverlay overlaydc( DrawPanel->m_overlay, DC ); 
+    overlaydc.Clear();
+#endif
+
     screen->ClrRefreshReq();
 
     if( DrawPanel->ManageCurseur )
@@ -83,6 +90,12 @@ void WinEDA_PcbFrame::RedrawActiveWindow( wxDC* DC, bool EraseBg )
 
     DrawGeneralRatsnest( DC );
 
+#ifdef __WXMAC__
+    DrawPanel->m_overlay.Reset(); 
+    wxDCOverlay overlaydc( DrawPanel->m_overlay, DC ); 
+    overlaydc.Clear();
+#endif
+
     GetScreen()->ClrRefreshReq();
 
     if( DrawPanel->ManageCurseur )