include/wx/gtk1/dc.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk1/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 #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 public:
  40     // implementation
  41     wxCoord XDEV2LOG(wxCoord x) const       { return DeviceToLogicalX(x); }
  42     wxCoord XDEV2LOGREL(wxCoord x) const    { return DeviceToLogicalXRel(x); }
  43     wxCoord YDEV2LOG(wxCoord y) const       { return DeviceToLogicalY(y); }
  44     wxCoord YDEV2LOGREL(wxCoord y) const    { return DeviceToLogicalYRel(y); }
  45     wxCoord XLOG2DEV(wxCoord x) const       { return LogicalToDeviceX(x); }
  46     wxCoord XLOG2DEVREL(wxCoord x) const    { return LogicalToDeviceXRel(x); }
  47     wxCoord YLOG2DEV(wxCoord y) const       { return LogicalToDeviceY(y); }
  48     wxCoord YLOG2DEVREL(wxCoord y) const    { return LogicalToDeviceYRel(y); }
  49
  50     // base class pure virtuals implemented here
  51     virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  52     virtual void DoGetSizeMM(int* width, int* height) const;
  53
  54 private:
  55     DECLARE_ABSTRACT_CLASS(wxDC)
  56 };
  57
  58 // this must be defined when wxDC::Blit() honours the DC origian and needed to
  59 // allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
  60 // 2.3.[23]
  61 #ifndef wxHAS_WORKING_GTK_DC_BLIT
  62     #define wxHAS_WORKING_GTK_DC_BLIT
  63 #endif
  64
  65 #endif // __GTKDCH__