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 _WX_GTKDC_H_
  11 #define _WX_GTKDC_H_
  12
  13 #include "wx/dc.h"
  14
  15 //-----------------------------------------------------------------------------
  16 // wxDC
  17 //-----------------------------------------------------------------------------
  18
  19 class WXDLLIMPEXP_CORE wxGTKDCImpl : public wxDCImpl
  20 {
  21 public:
  22     wxGTKDCImpl( wxDC *owner );
  23     virtual ~wxGTKDCImpl();
  24
  25 #if wxUSE_PALETTE
  26     void SetColourMap( const wxPalette& palette ) { SetPalette(palette); }
  27 #endif // wxUSE_PALETTE
  28
  29     // Resolution in pixels per logical inch
  30     virtual wxSize GetPPI() const;
  31
  32     virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
  33     virtual void EndDoc() { }
  34     virtual void StartPage() { }
  35     virtual void EndPage() { }
  36
  37     virtual GdkWindow* GetGDKWindow() const { return NULL; }
  38
  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     DECLARE_ABSTRACT_CLASS(wxGTKDCImpl)
  44 };
  45
  46 // this must be defined when wxDC::Blit() honours the DC origin and needed to
  47 // allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
  48 // 2.3.[23]
  49 #ifndef wxHAS_WORKING_GTK_DC_BLIT
  50     #define wxHAS_WORKING_GTK_DC_BLIT
  51 #endif
  52
  53 #endif // _WX_GTKDC_H_