Corrected wxDC objects used by EDA_DRAW_PANEL_GAL & OPENGL_GAL.

common/draw_panel_gal.cpp

@@ -153,6 +153,9 @@ void EDA_DRAW_PANEL_GAL::SetFocus()
 
 void EDA_DRAW_PANEL_GAL::onPaint( wxPaintEvent& WXUNUSED( aEvent ) )
 {
+    // This is required even though dc is not used otherwise.
+    wxPaintDC dc(this);
+
     m_pendingRefresh = false;
 
     if( m_drawing )

common/gal/opengl/opengl_gal.cpp

@@ -40,6 +40,7 @@
 #include <limits>
 #include <boost/bind.hpp>
 
+
 using namespace KIGFX;
 
 #include "bitmap_font_img.c"
@@ -52,6 +53,7 @@ wxGLContext* OPENGL_GAL::glContext = NULL;
 int OPENGL_GAL::instanceCounter = 0;
 bool OPENGL_GAL::isBitmapFontLoaded = false;
 
+
 OPENGL_GAL::OPENGL_GAL( wxWindow* aParent, wxEvtHandler* aMouseListener,
                         wxEvtHandler* aPaintListener, const wxString& aName ) :
     wxGLCanvas( aParent, wxID_ANY, (int*) glAttributes, wxDefaultPosition, wxDefaultSize,
@@ -164,7 +166,6 @@ void OPENGL_GAL::BeginDrawing()
 #endif /* __WXDEBUG__ */
 
     SetCurrent( *glContext );
-    clientDC = new wxClientDC( this );
 
 #ifdef RETINA_OPENGL_PATCH
     const float scaleFactor = GetBackingScaleFactor();
@@ -300,8 +301,6 @@ void OPENGL_GAL::EndDrawing()
 
     SwapBuffers();
 
-    delete clientDC;
-
 #ifdef __WXDEBUG__
     prof_end( &totalRealTime );
     wxLogTrace( "GAL_PROFILE", wxT( "OPENGL_GAL::EndDrawing(): %.1f ms" ), totalRealTime.msecs() );

include/gal/opengl/opengl_gal.h

@@ -52,6 +52,7 @@ namespace KIGFX
 {
 class SHADER;
 
+
 /**
  * @brief Class OpenGL_GAL is the OpenGL implementation of the Graphics Abstraction Layer.
  *
@@ -62,7 +63,6 @@ class SHADER;
 class OPENGL_GAL : public GAL, public wxGLCanvas
 {
 public:
-
     /**
      * @brief Constructor OPENGL_GAL
      *
@@ -273,7 +273,6 @@ private:
     static const int    CIRCLE_POINTS   = 64;   ///< The number of points for circle approximation
     static const int    CURVE_POINTS    = 32;   ///< The number of points for curve approximation
 
-    wxClientDC*             clientDC;               ///< Drawing context
     static wxGLContext*     glContext;              ///< OpenGL context of wxWidgets
     wxEvtHandler*           mouseListener;
     wxEvtHandler*           paintListener;