wxWidgets/include/wx/gtk1/dc.h

70 lines
2.4 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/gtk1/dc.h
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef __GTKDCH__
#define __GTKDCH__
//-----------------------------------------------------------------------------
// classes
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_FWD_CORE wxDC;
//-----------------------------------------------------------------------------
// wxDC
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxDC : public wxDCBase
{
public:
wxDC();
virtual ~wxDC() { }
#if wxUSE_PALETTE
void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
#endif // wxUSE_PALETTE
// Resolution in pixels per logical inch
virtual wxSize GetPPI() const;
virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
virtual void EndDoc() { }
virtual void StartPage() { }
virtual void EndPage() { }
virtual GdkWindow* GetGDKWindow() const { return NULL; }
public:
// implementation
wxCoord XDEV2LOG(wxCoord x) const { return DeviceToLogicalX(x); }
wxCoord XDEV2LOGREL(wxCoord x) const { return DeviceToLogicalXRel(x); }
wxCoord YDEV2LOG(wxCoord y) const { return DeviceToLogicalY(y); }
wxCoord YDEV2LOGREL(wxCoord y) const { return DeviceToLogicalYRel(y); }
wxCoord XLOG2DEV(wxCoord x) const { return LogicalToDeviceX(x); }
wxCoord XLOG2DEVREL(wxCoord x) const { return LogicalToDeviceXRel(x); }
wxCoord YLOG2DEV(wxCoord y) const { return LogicalToDeviceY(y); }
wxCoord YLOG2DEVREL(wxCoord y) const { return LogicalToDeviceYRel(y); }
// base class pure virtuals implemented here
virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
virtual void DoGetSizeMM(int* width, int* height) const;
private:
DECLARE_ABSTRACT_CLASS(wxDC)
};
// this must be defined when wxDC::Blit() honours the DC origian and needed to
// allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
// 2.3.[23]
#ifndef wxHAS_WORKING_GTK_DC_BLIT
#define wxHAS_WORKING_GTK_DC_BLIT
#endif
#endif // __GTKDCH__