dc.h 2.2 KB

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  1. /////////////////////////////////////////////////////////////////////////////
  2. // Name: wx/gtk1/dc.h
  3. // Purpose:
  4. // Author: Robert Roebling
  5. // Copyright: (c) 1998 Robert Roebling
  6. // Licence: wxWindows licence
  7. /////////////////////////////////////////////////////////////////////////////
  8. #ifndef __GTKDCH__
  9. #define __GTKDCH__
  10. #include "wx/dc.h"
  11. //-----------------------------------------------------------------------------
  12. // wxDC
  13. //-----------------------------------------------------------------------------
  14. class WXDLLIMPEXP_CORE wxGTKDCImpl : public wxDCImpl
  15. {
  16. public:
  17. wxGTKDCImpl(wxDC *owner);
  18. virtual ~wxGTKDCImpl() { }
  19. #if wxUSE_PALETTE
  20. void SetColourMap( const wxPalette& palette ) { SetPalette(palette); }
  21. #endif // wxUSE_PALETTE
  22. // Resolution in pixels per logical inch
  23. virtual wxSize GetPPI() const;
  24. virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
  25. virtual void EndDoc() { }
  26. virtual void StartPage() { }
  27. virtual void EndPage() { }
  28. virtual GdkWindow* GetGDKWindow() const { return NULL; }
  29. public:
  30. // implementation
  31. wxCoord XDEV2LOG(wxCoord x) const { return DeviceToLogicalX(x); }
  32. wxCoord XDEV2LOGREL(wxCoord x) const { return DeviceToLogicalXRel(x); }
  33. wxCoord YDEV2LOG(wxCoord y) const { return DeviceToLogicalY(y); }
  34. wxCoord YDEV2LOGREL(wxCoord y) const { return DeviceToLogicalYRel(y); }
  35. wxCoord XLOG2DEV(wxCoord x) const { return LogicalToDeviceX(x); }
  36. wxCoord XLOG2DEVREL(wxCoord x) const { return LogicalToDeviceXRel(x); }
  37. wxCoord YLOG2DEV(wxCoord y) const { return LogicalToDeviceY(y); }
  38. wxCoord YLOG2DEVREL(wxCoord y) const { return LogicalToDeviceYRel(y); }
  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. private:
  43. DECLARE_ABSTRACT_CLASS(wxDC)
  44. };
  45. // this must be defined when wxDC::Blit() honours the DC origian and needed to
  46. // allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
  47. // 2.3.[23]
  48. #ifndef wxHAS_WORKING_GTK_DC_BLIT
  49. #define wxHAS_WORKING_GTK_DC_BLIT
  50. #endif
  51. #endif // __GTKDCH__