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/////////////////////////////////////////////////////////////////////////////
// Name: dc.h
// Purpose: wxDC class
// Author: Stefan Csomor
// Modified by:
// Created: 1998-01-01
// RCS-ID: $Id: dc.h 42631 2006-10-29 17:55:09Z RR $
// Copyright: (c) Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DC_H_
#define _WX_DC_H_
#include "wx/pen.h"
#include "wx/brush.h"
#include "wx/icon.h"
#include "wx/font.h"
#include "wx/gdicmn.h"
//-----------------------------------------------------------------------------
// 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
//-----------------------------------------------------------------------------
// global variables
//-----------------------------------------------------------------------------
class wxMacPortStateHelper ;
//-----------------------------------------------------------------------------
// wxDC
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxDC: public wxDCBase
{
DECLARE_DYNAMIC_CLASS(wxDC)
DECLARE_NO_COPY_CLASS(wxDC)
public:
wxDC();
virtual ~wxDC();
// implement base class pure virtuals
// ----------------------------------
virtual void Clear();
virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
virtual void EndDoc(void) {};
virtual void StartPage(void) {};
virtual void EndPage(void) {};
virtual void SetFont(const wxFont& font);
virtual void SetPen(const wxPen& pen);
virtual void SetBrush(const wxBrush& brush);
virtual void SetBackground(const wxBrush& brush);
virtual void SetBackgroundMode(int mode);
virtual void SetPalette(const wxPalette& palette);
virtual void DestroyClippingRegion();
virtual wxCoord GetCharHeight() const;
virtual wxCoord GetCharWidth() const;
virtual void DoGetTextExtent(const wxString& string,
wxCoord *x, wxCoord *y,
wxCoord *descent = NULL,
wxCoord *externalLeading = NULL,
wxFont *theFont = NULL) const;
virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
virtual bool CanDrawBitmap() const;
virtual bool CanGetTextExtent() const;
virtual int GetDepth() const;
virtual wxSize GetPPI() const;
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);
virtual void SetLogicalFunction(int function);
virtual void SetTextForeground(const wxColour& colour) ;
virtual void SetTextBackground(const wxColour& colour) ;
virtual void ComputeScaleAndOrigin();
public:
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);
}
wxCoord XLOG2DEVMAC(wxCoord x) const
{
return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX + m_macLocalOrigin.x;
}
wxCoord YLOG2DEVMAC(wxCoord y) const
{
return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY + m_macLocalOrigin.y;
}
WXHRGN MacGetCurrentClipRgn() { return m_macCurrentClipRgn ; }
static void MacSetupBackgroundForCurrentPort(const wxBrush& background ) ;
//
protected:
virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
int style = wxFLOOD_SURFACE);
virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
virtual void DoDrawPoint(wxCoord x, wxCoord y);
virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
virtual void DoDrawArc(wxCoord x1, wxCoord y1,
wxCoord x2, wxCoord y2,
wxCoord xc, wxCoord yc);
virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
double sa, double ea);
virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
wxCoord width, wxCoord height,
double radius);
virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
virtual void DoCrossHair(wxCoord x, wxCoord y);
virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
bool useMask = false);
virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
double angle);
virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
wxDC *source, wxCoord xsrc, wxCoord ysrc,
int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
// this is gnarly - we can't even call this function DoSetClippingRegion()
// because of virtual function hiding
virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
wxCoord width, wxCoord height);
virtual void DoGetSizeMM(int* width, int* height) const;
virtual void DoDrawLines(int n, wxPoint points[],
wxCoord xoffset, wxCoord yoffset);
virtual void DoDrawPolygon(int n, wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
int fillStyle = wxODDEVEN_RULE);
protected:
//begin wxmac
// Variables used for scaling
double m_mm_to_pix_x,m_mm_to_pix_y;
// not yet used
bool m_needComputeScaleX,m_needComputeScaleY;
// If un-scrolled is non-zero or d.o. changes with scrolling.
// Set using SetInternalDeviceOrigin().
long m_internalDeviceOriginX,m_internalDeviceOriginY;
// To be set by external classes such as wxScrolledWindow
// using SetDeviceOrigin()
long m_externalDeviceOriginX,m_externalDeviceOriginY;
// Begin implementation for Mac
public:
WXHDC m_macPort ;
WXHBITMAP m_macMask ;
// in order to preserve the const inheritance of the virtual functions, we have to
// use mutable variables starting from CWPro 5
void MacInstallFont() const ;
void MacInstallPen() const ;
void MacInstallBrush() const ;
mutable bool m_macFontInstalled ;
mutable bool m_macPenInstalled ;
mutable bool m_macBrushInstalled ;
WXHRGN m_macBoundaryClipRgn ;
WXHRGN m_macCurrentClipRgn ;
wxPoint m_macLocalOrigin ;
void MacSetupPort( wxMacPortStateHelper* ph ) const ;
void MacCleanupPort( wxMacPortStateHelper* ph ) const ;
mutable void* m_macATSUIStyle ;
mutable wxMacPortStateHelper* m_macCurrentPortStateHelper ;
mutable bool m_macFormerAliasState ;
mutable short m_macFormerAliasSize ;
mutable bool m_macAliasWasEnabled ;
mutable void* m_macForegroundPixMap ;
mutable void* m_macBackgroundPixMap ;
};
#endif
// _WX_DC_H_
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