include/wx/gtk1/dc.h

   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
   9 #ifndef __GTKDCH__
  10 #define __GTKDCH__
  11
  12 #include "wx/dc.h"
  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 public:
  39     // implementation
  40     wxCoord XDEV2LOG(wxCoord x) const       { return DeviceToLogicalX(x); }
  41     wxCoord XDEV2LOGREL(wxCoord x) const    { return DeviceToLogicalXRel(x); }
  42     wxCoord YDEV2LOG(wxCoord y) const       { return DeviceToLogicalY(y); }
  43     wxCoord YDEV2LOGREL(wxCoord y) const    { return DeviceToLogicalYRel(y); }
  44     wxCoord XLOG2DEV(wxCoord x) const       { return LogicalToDeviceX(x); }
  45     wxCoord XLOG2DEVREL(wxCoord x) const    { return LogicalToDeviceXRel(x); }
  46     wxCoord YLOG2DEV(wxCoord y) const       { return LogicalToDeviceY(y); }
  47     wxCoord YLOG2DEVREL(wxCoord y) const    { return LogicalToDeviceYRel(y); }
  48
  49     // base class pure virtuals implemented here
  50     virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  51     virtual void DoGetSizeMM(int* width, int* height) const;
  52
  53 private:
  54     DECLARE_ABSTRACT_CLASS(wxDC)
  55 };
  56
  57 // this must be defined when wxDC::Blit() honours the DC origian and needed to
  58 // allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
  59 // 2.3.[23]
  60 #ifndef wxHAS_WORKING_GTK_DC_BLIT
  61     #define wxHAS_WORKING_GTK_DC_BLIT
  62 #endif
  63
  64 #endif // __GTKDCH__