5a70d3f578
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42763 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
133 lines
3.8 KiB
C++
133 lines
3.8 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_CORE wxDC;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// constants
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifndef MM_TEXT
|
|
#define MM_TEXT 0
|
|
#define MM_ISOTROPIC 1
|
|
#define MM_ANISOTROPIC 2
|
|
#define MM_LOMETRIC 3
|
|
#define MM_HIMETRIC 4
|
|
#define MM_TWIPS 5
|
|
#define MM_POINTS 6
|
|
#define MM_METRIC 7
|
|
#endif
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// 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 void SetMapMode( int mode );
|
|
virtual void SetUserScale( double x, double y );
|
|
virtual void SetLogicalScale( double x, double y );
|
|
virtual void SetLogicalOrigin( wxCoord x, wxCoord y );
|
|
virtual void SetDeviceOrigin( wxCoord x, wxCoord y );
|
|
|
|
virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
|
|
|
|
// implementation
|
|
// --------------
|
|
|
|
virtual void ComputeScaleAndOrigin();
|
|
|
|
virtual GdkWindow* GetGDKWindow() const { return NULL; }
|
|
|
|
wxCoord XDEV2LOG(wxCoord x) const
|
|
{
|
|
return wxRound((double)(x - m_deviceOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
|
|
}
|
|
wxCoord XDEV2LOGREL(wxCoord x) const
|
|
{
|
|
return wxRound((double)(x) / m_scaleX);
|
|
}
|
|
wxCoord YDEV2LOG(wxCoord y) const
|
|
{
|
|
return wxRound((double)(y - m_deviceOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
|
|
}
|
|
wxCoord YDEV2LOGREL(wxCoord y) const
|
|
{
|
|
return wxRound((double)(y) / m_scaleY);
|
|
}
|
|
wxCoord XLOG2DEV(wxCoord x) const
|
|
{
|
|
return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX;
|
|
}
|
|
wxCoord XLOG2DEVREL(wxCoord x) const
|
|
{
|
|
return wxRound((double)(x) * m_scaleX);
|
|
}
|
|
wxCoord YLOG2DEV(wxCoord y) const
|
|
{
|
|
return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY;
|
|
}
|
|
wxCoord YLOG2DEVREL(wxCoord y) const
|
|
{
|
|
return wxRound((double)(y) * m_scaleY);
|
|
}
|
|
|
|
protected:
|
|
// 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;
|
|
|
|
public:
|
|
// GTK-specific member variables
|
|
|
|
// not sure what for, but what is a mm on a screen you don't know the size
|
|
// of?
|
|
double m_mm_to_pix_x,
|
|
m_mm_to_pix_y;
|
|
|
|
bool m_needComputeScaleX,
|
|
m_needComputeScaleY; // not yet used
|
|
|
|
|
|
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__
|