include/wx/gtk/dc.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/dc.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef __GTKDCH__
  11 #define __GTKDCH__
  12
  13
  14 //-----------------------------------------------------------------------------
  15 // wxDC
  16 //-----------------------------------------------------------------------------
  17
  18 class WXDLLIMPEXP_CORE wxGTKDCImpl : public wxDCImpl
  19 {
  20 public:
  21     wxGTKDCImpl( wxDC *owner );
  22     virtual ~wxGTKDCImpl();
  23
  24 #if wxUSE_PALETTE
  25     void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
  26 #endif // wxUSE_PALETTE
  27
  28     // Resolution in pixels per logical inch
  29     virtual wxSize GetPPI() const;
  30
  31     virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
  32     virtual void EndDoc() { }
  33     virtual void StartPage() { }
  34     virtual void EndPage() { }
  35
  36     virtual GdkWindow* GetGDKWindow() const { return NULL; }
  37
  38 protected:
  39     // base class pure virtuals implemented here
  40     virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  41     virtual void DoGetSizeMM(int* width, int* height) const;
  42
  43 private:
  44     DECLARE_ABSTRACT_CLASS(wxGTKDCImpl)
  45 };
  46
  47 // this must be defined when wxDC::Blit() honours the DC origin and needed to
  48 // allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
  49 // 2.3.[23]
  50 #ifndef wxHAS_WORKING_GTK_DC_BLIT
  51     #define wxHAS_WORKING_GTK_DC_BLIT
  52 #endif
  53
  54 #endif // __GTKDCH__