[wxWidgets.git] / include / wx / msw / dc.h

/////////////////////////////////////////////////////////////////////////////
// Name:        dc.h
// Purpose:     wxDC class
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart and Markus Holzem
// Licence:   	wxWindows license
/////////////////////////////////////////////////////////////////////////////

#ifndef __DCH__
#define __DCH__

#ifdef __GNUG__
#pragma interface "dc.h"
#endif

#include "wx/pen.h"
#include "wx/brush.h"
#include "wx/icon.h"
#include "wx/font.h"
#include "wx/gdicmn.h"

class WXDLLEXPORT wxDC: public wxObject
{
  DECLARE_ABSTRACT_CLASS(wxDC)
 protected:
public:
  wxDC(void);
  ~wxDC(void);

  inline void wxDC::BeginDrawing(void) {}
  inline void wxDC::EndDrawing(void) {}

  virtual void FloodFill(long x1, long y1, const wxColour& col, int style=wxFLOOD_SURFACE) ;
  inline void FloodFill(const wxPoint& pt, const wxColour& col, int style=wxFLOOD_SURFACE)
  {
    FloodFill(pt.x, pt.y, col, style);
  }

  virtual bool GetPixel(long x1, long y1, wxColour *col) const ;
  inline bool GetPixel(const wxPoint& pt, wxColour *col) const
  {
    return GetPixel(pt.x, pt.y, col);
  }

  virtual void DrawLine(long x1, long y1, long x2, long y2);
  inline void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
  {
    DrawLine(pt1.x, pt1.y, pt2.x, pt2.y);
  }

  virtual void CrossHair(long x, long y) ;
  virtual void CrossHair(const wxPoint& pt)
  {
    CrossHair(pt.x, pt.y);
  }

  virtual void DrawArc(long x1,long y1,long x2,long y2,double xc, double yc);
  inline void DrawArc(const wxPoint& pt1, const wxPoint& pt2, double xc, double yc)
  {
    DrawArc(pt1.x, pt1.y, pt2.x, pt2.y, xc, yc);
  }

  virtual void DrawEllipticArc (long x, long y, long w, long h, double sa, double ea);
  virtual void DrawEllipticArc (const wxPoint& pt, const wxSize& sz, double sa, double ea)
  {
    DrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea);
  }

  virtual void DrawPoint(long x, long y);
  inline void DrawPoint(const wxPoint& pt)
  {
    DrawPoint(pt.x, pt.y);
  }

  virtual void DrawLines(int n, wxPoint points[], long xoffset = 0, long yoffset = 0);

  virtual void DrawPolygon(int n, wxPoint points[], long xoffset = 0, long yoffset = 0, int fillStyle=wxODDEVEN_RULE);

  virtual void DrawRectangle(long x, long y, long width, long height);
  inline void DrawRectangle(const wxPoint& pt, const wxSize& sz)
  {
    DrawRectangle(pt.x, pt.y, sz.x, sz.y);
  }
  inline void DrawRectangle(const wxRect& rect)
  {
    DrawRectangle(rect.x, rect.y, rect.width, rect.height);
  }

  virtual void DrawRoundedRectangle(long x, long y, long width, long height, double radius = 20.0);
  inline void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, double radius = 20.0)
  {
    DrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius);
  }
  inline void DrawRoundedRectangle(const wxRect& rect, double radius = 20.0)
  {
    DrawRoundedRectangle(rect.x, rect.y, rect.width, rect.height, radius);
  }

  virtual void DrawEllipse(long x, long y, long width, long height);
  inline void DrawEllipse(const wxPoint& pt, const wxSize& sz)
  {
    DrawEllipse(pt.x, pt.y, sz.x, sz.y);
  }
  inline void DrawEllipse(const wxRect& rect)
  {
    DrawEllipse(rect.x, rect.y, rect.width, rect.height);
  }

  virtual void DrawIcon(const wxIcon& icon, long x, long y);
  inline void DrawIcon(const wxIcon& icon, const wxPoint& pt)
  {
    DrawIcon(icon, pt.x, pt.y);
  }

  inline void DrawPoint(wxPoint& point) { DrawPoint(point.x, point.y); }
  virtual void DrawLines(wxList *list, long xoffset = 0, long yoffset = 0);
  virtual void DrawPolygon(wxList *list, long xoffset = 0, long yoffset = 0, int fillStyle=wxODDEVEN_RULE);

  virtual void DrawText(const wxString& text, long x, long y, bool use16bit = FALSE);
  inline void DrawText(const wxString& text, const wxPoint& pt, bool use16bit = FALSE)
  {
    DrawText(text, pt.x, pt.y, use16bit);
  }

  virtual bool Blit(long xdest, long ydest, long width, long height,
            wxDC *source, long xsrc, long ysrc, int rop = wxCOPY, bool useMask = FALSE);
  inline bool Blit(const wxPoint& destPt, const wxSize& sz,
            wxDC *source, const wxPoint& srcPt, int rop = wxCOPY, bool useMask = FALSE)
  {
    return Blit(destPt.x, destPt.y, sz.x, sz.y, source, srcPt.x, srcPt.y, rop, useMask);
  }

#if USE_SPLINES
  // Splines
  // 3-point spline
  virtual void DrawSpline(long x1, long y1, long x2, long y2, long x3, long y3);
  // Any number of control points - a list of pointers to wxPoints
  virtual void DrawSpline(wxList *points);
  virtual void DrawSpline(int n, wxPoint points[]);
#endif
  virtual void Clear(void);
  virtual void SetFont(const wxFont& font);
  virtual void SetPen(const wxPen& pen);
  virtual void SetBrush(const wxBrush& brush);
  virtual void SetLogicalFunction(int function);
  virtual void SetBackground(const wxBrush& brush);
  virtual void SetBackgroundMode(int mode);

  virtual void SetClippingRegion(long x, long y, long width, long height);
  inline void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
  {
    SetClippingRegion(pt.x, pt.y, sz.x, sz.y);
  }
  inline void SetClippingRegion(const wxRect& rect)
  {
    SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
  }

  virtual void SetPalette(const wxPalette& palette);
#if WXWIN_COMPATIBILITY
  virtual inline void SetColourMap(const wxPalette& palette) { SetPalette(palette); };
#endif
  virtual void DestroyClippingRegion(void);
  virtual long GetCharHeight(void) const;
  virtual long GetCharWidth(void) const;
  virtual void GetTextExtent(const wxString& string, long *x, long *y,
                     long *descent = NULL, long *externalLeading = NULL,
                     wxFont *theFont = NULL, bool use16bit = FALSE) const;
#if WXWIN_COMPATIBILITY
  void GetTextExtent(const wxString& string, float *x, float *y,
                     float *descent = NULL, float *externalLeading = NULL,
                     wxFont *theFont = NULL, bool use16bit = FALSE) const ;
#endif

  // Size in device units
  virtual void GetSize(int* width, int* height) const;
  inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }

  // Size in mm
  virtual void GetSizeMM(long* width, long* height) const ;

  // Compatibility
#if WXWIN_COMPATIBILITY
  inline void GetSize(float* width, float* height) const { int w, h; GetSize(& w, & h); *width = w; *height = h; }
  inline void GetSizeMM(float *width, float *height) const { long w, h; GetSizeMM(& w, & h); *width = (float) w; *height = (float) h; }
#endif

  virtual bool StartDoc(const wxString& message);
  virtual void EndDoc(void);
  virtual void StartPage(void);
  virtual void EndPage(void);
  virtual void SetMapMode(int mode);
  virtual void SetUserScale(double x, double y);
  virtual void SetSystemScale(double x, double y);
  virtual void SetLogicalOrigin(long x, long y);
  virtual void SetDeviceOrigin(long x, long y);
  virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);

  // This group of functions does actual conversion
  // of the input, as you'd expect.

  long DeviceToLogicalX(long x) const;
  long DeviceToLogicalY(long y) const;
  long DeviceToLogicalXRel(long x) const;
  long DeviceToLogicalYRel(long y) const;
  long LogicalToDeviceX(long x) const;
  long LogicalToDeviceY(long y) const;
  long LogicalToDeviceXRel(long x) const;
  long LogicalToDeviceYRel(long y) const;

  // This group of functions may not do any conversion
  // if m_scaleGDI is TRUE, since the HDC does the
  // conversion automatically.
  // m_scaleGDI NOW OBSOLETE
  long ImplDeviceToLogicalX(long x) const;
  long ImplDeviceToLogicalY(long y) const;
  long ImplDeviceToLogicalXRel(long x) const;
  long ImplDeviceToLogicalYRel(long y) const;
  long ImplLogicalToDeviceX(long x) const;
  long ImplLogicalToDeviceY(long y) const;
  long ImplLogicalToDeviceXRel(long x) const;
  long ImplLogicalToDeviceYRel(long y) const;

  virtual bool CanDrawBitmap(void) const;
  virtual bool CanGetTextExtent(void) const;

  virtual void SetTextForeground(const wxColour& colour);
  virtual void SetTextBackground(const wxColour& colour);
  inline virtual bool Ok(void) const {return m_ok;};
  inline virtual int  GetMapMode(void) const {return m_mappingMode;};

  inline virtual wxBrush *GetBackground(void) const { return (wxBrush*) &m_backgroundBrush ;}
  inline virtual wxBrush *GetBrush(void) const { return (wxBrush*) &m_brush ;}
  inline virtual wxFont  *GetFont(void) const { return (wxFont*) &m_font ;}
  inline virtual int      GetLogicalFunction(void) const { return m_logicalFunction ;}
  inline virtual wxPen   *GetPen(void) const { return (wxPen*) &m_pen ;}
  inline virtual wxColour&GetTextBackground(void) const { return (wxColour&) m_textBackgroundColour ;}
  inline virtual wxColour&GetTextForeground(void) const { return (wxColour&) m_textForegroundColour ;}

  virtual void SetLogicalScale(double x, double y);
  virtual inline  void GetUserScale(double* x, double *y) const { *x = m_userScaleX; *y = m_userScaleY; }
  virtual void CalcBoundingBox(long x, long y);
  // Get the final bounding box of the PostScript or Metafile picture.
  virtual inline long MinX(void) const { return m_minX; }
  virtual inline long MaxX(void) const { return m_maxX; }
  virtual inline long MinY(void) const { return m_minY; }
  virtual inline long MaxY(void) const { return m_maxY; }
  // Sometimes we need to override optimization, e.g.
  // if other software is drawing onto our surface and we
  // can't be sure of who's done what.
  virtual inline void SetOptimization(bool WXUNUSED(opt)) { }
  virtual inline bool GetOptimization(void) { return FALSE; }

  virtual void GetClippingBox(long *x,long *y,long *w,long *h) const ;
  inline void GetClippingBox(wxRect& rect) const
  {
    long x, y, w, h;
    GetClippingBox(&x, &y, &w, &h); rect.x = x; rect.y = y; rect.width = w; rect.height = h;
  }

  virtual void SetRop(WXHDC cdc);
  virtual void DoClipping(WXHDC cdc);
  virtual void SelectOldObjects(WXHDC dc);

  inline wxWindow *GetWindow(void) const { return m_canvas; }
  inline void SetWindow(wxWindow *win) { m_canvas = win; }
  inline WXHDC GetHDC(void) const { return m_hDC; }
  inline void SetHDC(WXHDC dc, bool bOwnsDC = FALSE) { m_hDC = dc; m_bOwnsDC = bOwnsDC; }

protected:
  bool              m_colour;
  bool              m_ok;
  bool              m_clipping;
  bool              m_isInteractive;

  // Coordinate system variables
  long             m_logicalOriginX;
  long             m_logicalOriginY;

  long             m_deviceOriginX;
  long             m_deviceOriginY;

  double             m_logicalScaleX;
  double             m_logicalScaleY;

  double             m_userScaleX;
  double             m_userScaleY;

  int                m_signX;		// Used by SetAxisOrientation() to
  int                m_signY;		// invert the axes

  int               m_mappingMode;

  long             m_minX;          // bounding box
  long             m_minY;
  long             m_maxX;
  long             m_maxY;

  int               m_logicalFunction;
  int               m_backgroundMode;

  wxPen             m_pen;
  wxBrush           m_brush;
  wxBrush           m_backgroundBrush;
  wxColour          m_textForegroundColour;
  wxColour          m_textBackgroundColour;
  wxFont            m_font;
  wxPalette         m_palette;
  int               m_clipX1;
  int               m_clipY1;
  int               m_clipX2;
  int               m_clipY2;
//  bool              m_dontDelete;
  int               m_windowExtX;
  int               m_windowExtY;
  double            m_systemScaleX;
  double            m_systemScaleY;

  wxWindow *        m_canvas;
  wxBitmap          m_selectedBitmap;
  wxString          m_filename;

  // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
  bool              m_bOwnsDC;

  WXHDC             m_hDC;
  int               m_hDCCount;

  // Store all old GDI objects when do a SelectObject,
  // so we can select them back in (this unselecting user's
  // objects) so we can safely delete the DC.
  WXHBITMAP         m_oldBitmap;
  WXHPEN            m_oldPen;
  WXHBRUSH          m_oldBrush;
  WXHFONT           m_oldFont;
  WXHPALETTE        m_oldPalette;

  // Stores scaling, translation, rotation
//  wxTransformMatrix	m_transformMatrix;

  // Do we wish to scale GDI objects too, e.g. pen width?
//  bool				m_scaleGDI;
};

// Logical to device
// Absolute
#define XLOG2DEV(x) ImplLogicalToDeviceX(x)

#define YLOG2DEV(y) ImplLogicalToDeviceY(y)

// Relative
#define XLOG2DEVREL(x) ImplLogicalToDeviceXRel(x)
#define YLOG2DEVREL(y) ImplLogicalToDeviceYRel(y)

// Device to logical
// Absolute
#define XDEV2LOG(x) ImplDeviceToLogicalX(x)

#define YDEV2LOG(y) ImplDeviceToLogicalY(y)

// Relative
#define XDEV2LOGREL(x) ImplDeviceToLogicalXRel(x)
#define YDEV2LOGREL(y) ImplDeviceToLogicalYRel(y)

/*
 * Have the same macros as for XView but not for every operation:
 * just for calculating window/viewport extent (a better way of scaling).
 */

// Logical to device
// Absolute
#define MS_XLOG2DEV(x) LogicalToDevice(x)

#define MS_YLOG2DEV(y) LogicalToDevice(y)

// Relative
#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)

// Device to logical
// Absolute
#define MS_XDEV2LOG(x) DeviceToLogicalX(x)

#define MS_YDEV2LOG(y) DeviceToLogicalY(y)

// Relative
#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)

#define MM_POINTS      7
#define MM_METRIC      8

extern int wxPageNumber;

// Conversion
#define METRIC_CONVERSION_CONSTANT  0.0393700787

// Scaling factors for various unit conversions
#define mm2inches (METRIC_CONVERSION_CONSTANT)
#define inches2mm (1/METRIC_CONVERSION_CONSTANT)

#define mm2twips (METRIC_CONVERSION_CONSTANT*1440)
#define twips2mm (1/(METRIC_CONVERSION_CONSTANT*1440))

#define mm2pt (METRIC_CONVERSION_CONSTANT*72)
#define pt2mm (1/(METRIC_CONVERSION_CONSTANT*72))

#define     wx_round(a)    (int)((a)+.5)


#endif
    // __DCH__
Commit	Line	Data
2bda0e17 KB	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: dc.h
	3	// Purpose: wxDC class
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 01/02/97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart and Markus Holzem
	9	// Licence: wxWindows license
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef __DCH__
	13	#define __DCH__
	14
	15	#ifdef __GNUG__
	16	#pragma interface "dc.h"
	17	#endif
	18
	19	#include "wx/pen.h"
	20	#include "wx/brush.h"
	21	#include "wx/icon.h"
	22	#include "wx/font.h"
	23	#include "wx/gdicmn.h"
	24
	25	class WXDLLEXPORT wxDC: public wxObject
	26	{
	27	DECLARE_ABSTRACT_CLASS(wxDC)
	28	protected:
	29	public:
	30	wxDC(void);
	31	~wxDC(void);
	32
	33	inline void wxDC::BeginDrawing(void) {}
	34	inline void wxDC::EndDrawing(void) {}
	35
6a6c0a8b JS	36	virtual void FloodFill(long x1, long y1, const wxColour& col, int style=wxFLOOD_SURFACE) ;
	37	inline void FloodFill(const wxPoint& pt, const wxColour& col, int style=wxFLOOD_SURFACE)
	38	{
	39	FloodFill(pt.x, pt.y, col, style);
	40	}
	41
2bda0e17	42	virtual bool GetPixel(long x1, long y1, wxColour *col) const ;
6a6c0a8b JS	43	inline bool GetPixel(const wxPoint& pt, wxColour *col) const
	44	{
	45	return GetPixel(pt.x, pt.y, col);
	46	}
2bda0e17 KB	47
2bda0e17 KB	48	virtual void DrawLine(long x1, long y1, long x2, long y2);
6a6c0a8b JS	49	inline void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
	50	{
	51	DrawLine(pt1.x, pt1.y, pt2.x, pt2.y);
	52	}
	53
2bda0e17	54	virtual void CrossHair(long x, long y) ;
6a6c0a8b JS	55	virtual void CrossHair(const wxPoint& pt)
	56	{
	57	CrossHair(pt.x, pt.y);
	58	}
	59
2bda0e17	60	virtual void DrawArc(long x1,long y1,long x2,long y2,double xc, double yc);
6a6c0a8b JS	61	inline void DrawArc(const wxPoint& pt1, const wxPoint& pt2, double xc, double yc)
	62	{
	63	DrawArc(pt1.x, pt1.y, pt2.x, pt2.y, xc, yc);
	64	}
	65
2bda0e17	66	virtual void DrawEllipticArc (long x, long y, long w, long h, double sa, double ea);
6a6c0a8b JS	67	virtual void DrawEllipticArc (const wxPoint& pt, const wxSize& sz, double sa, double ea)
	68	{
	69	DrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea);
	70	}
	71
2bda0e17	72	virtual void DrawPoint(long x, long y);
6a6c0a8b JS	73	inline void DrawPoint(const wxPoint& pt)
	74	{
	75	DrawPoint(pt.x, pt.y);
	76	}
2bda0e17 KB	77
	78	virtual void DrawLines(int n, wxPoint points[], long xoffset = 0, long yoffset = 0);
	79
	80	virtual void DrawPolygon(int n, wxPoint points[], long xoffset = 0, long yoffset = 0, int fillStyle=wxODDEVEN_RULE);
	81
	82	virtual void DrawRectangle(long x, long y, long width, long height);
6a6c0a8b JS	83	inline void DrawRectangle(const wxPoint& pt, const wxSize& sz)
	84	{
	85	DrawRectangle(pt.x, pt.y, sz.x, sz.y);
	86	}
	87	inline void DrawRectangle(const wxRect& rect)
	88	{
	89	DrawRectangle(rect.x, rect.y, rect.width, rect.height);
	90	}
	91
2bda0e17	92	virtual void DrawRoundedRectangle(long x, long y, long width, long height, double radius = 20.0);
6a6c0a8b JS	93	inline void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, double radius = 20.0)
	94	{
	95	DrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius);
	96	}
	97	inline void DrawRoundedRectangle(const wxRect& rect, double radius = 20.0)
	98	{
	99	DrawRoundedRectangle(rect.x, rect.y, rect.width, rect.height, radius);
	100	}
	101
2bda0e17	102	virtual void DrawEllipse(long x, long y, long width, long height);
6a6c0a8b JS	103	inline void DrawEllipse(const wxPoint& pt, const wxSize& sz)
	104	{
	105	DrawEllipse(pt.x, pt.y, sz.x, sz.y);
	106	}
	107	inline void DrawEllipse(const wxRect& rect)
	108	{
	109	DrawEllipse(rect.x, rect.y, rect.width, rect.height);
	110	}
2bda0e17 KB	111
2bda0e17 KB	112	virtual void DrawIcon(const wxIcon& icon, long x, long y);
6a6c0a8b JS	113	inline void DrawIcon(const wxIcon& icon, const wxPoint& pt)
	114	{
	115	DrawIcon(icon, pt.x, pt.y);
	116	}
2bda0e17	117
6a6c0a8b JS	118	inline void DrawPoint(wxPoint& point) { DrawPoint(point.x, point.y); }
	119	virtual void DrawLines(wxList *list, long xoffset = 0, long yoffset = 0);
	120	virtual void DrawPolygon(wxList *list, long xoffset = 0, long yoffset = 0, int fillStyle=wxODDEVEN_RULE);
	121
	122	virtual void DrawText(const wxString& text, long x, long y, bool use16bit = FALSE);
	123	inline void DrawText(const wxString& text, const wxPoint& pt, bool use16bit = FALSE)
	124	{
	125	DrawText(text, pt.x, pt.y, use16bit);
	126	}
	127
	128	virtual bool Blit(long xdest, long ydest, long width, long height,
	129	wxDC *source, long xsrc, long ysrc, int rop = wxCOPY, bool useMask = FALSE);
	130	inline bool Blit(const wxPoint& destPt, const wxSize& sz,
	131	wxDC *source, const wxPoint& srcPt, int rop = wxCOPY, bool useMask = FALSE)
	132	{
	133	return Blit(destPt.x, destPt.y, sz.x, sz.y, source, srcPt.x, srcPt.y, rop, useMask);
	134	}
	135
	136	#if USE_SPLINES
	137	// Splines
	138	// 3-point spline
	139	virtual void DrawSpline(long x1, long y1, long x2, long y2, long x3, long y3);
	140	// Any number of control points - a list of pointers to wxPoints
	141	virtual void DrawSpline(wxList *points);
	142	virtual void DrawSpline(int n, wxPoint points[]);
	143	#endif
2bda0e17 KB	144	virtual void Clear(void);
	145	virtual void SetFont(const wxFont& font);
	146	virtual void SetPen(const wxPen& pen);
	147	virtual void SetBrush(const wxBrush& brush);
	148	virtual void SetLogicalFunction(int function);
	149	virtual void SetBackground(const wxBrush& brush);
	150	virtual void SetBackgroundMode(int mode);
6a6c0a8b	151
2bda0e17	152	virtual void SetClippingRegion(long x, long y, long width, long height);
6a6c0a8b JS	153	inline void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
	154	{
	155	SetClippingRegion(pt.x, pt.y, sz.x, sz.y);
	156	}
	157	inline void SetClippingRegion(const wxRect& rect)
	158	{
	159	SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
	160	}
	161
2bda0e17 KB	162	virtual void SetPalette(const wxPalette& palette);
	163	#if WXWIN_COMPATIBILITY
	164	virtual inline void SetColourMap(const wxPalette& palette) { SetPalette(palette); };
	165	#endif
	166	virtual void DestroyClippingRegion(void);
2bda0e17 KB	167	virtual long GetCharHeight(void) const;
	168	virtual long GetCharWidth(void) const;
	169	virtual void GetTextExtent(const wxString& string, long x, long y,
	170	long descent = NULL, long externalLeading = NULL,
	171	wxFont *theFont = NULL, bool use16bit = FALSE) const;
	172	#if WXWIN_COMPATIBILITY
	173	void GetTextExtent(const wxString& string, float x, float y,
	174	float descent = NULL, float externalLeading = NULL,
	175	wxFont *theFont = NULL, bool use16bit = FALSE) const ;
	176	#endif
	177
	178	// Size in device units
	179	virtual void GetSize(int* width, int* height) const;
	180	inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
	181
	182	// Size in mm
	183	virtual void GetSizeMM(long* width, long* height) const ;
	184
	185	// Compatibility
	186	#if WXWIN_COMPATIBILITY
	187	inline void GetSize(float* width, float* height) const { int w, h; GetSize(& w, & h); width = w; height = h; }
	188	inline void GetSizeMM(float width, float height) const { long w, h; GetSizeMM(& w, & h); width = (float) w; height = (float) h; }
	189	#endif
	190
	191	virtual bool StartDoc(const wxString& message);
	192	virtual void EndDoc(void);
	193	virtual void StartPage(void);
	194	virtual void EndPage(void);
	195	virtual void SetMapMode(int mode);
	196	virtual void SetUserScale(double x, double y);
	197	virtual void SetSystemScale(double x, double y);
	198	virtual void SetLogicalOrigin(long x, long y);
	199	virtual void SetDeviceOrigin(long x, long y);
6f65e337	200	virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
2bda0e17 KB	201
	202	// This group of functions does actual conversion
	203	// of the input, as you'd expect.
	204
	205	long DeviceToLogicalX(long x) const;
	206	long DeviceToLogicalY(long y) const;
	207	long DeviceToLogicalXRel(long x) const;
	208	long DeviceToLogicalYRel(long y) const;
	209	long LogicalToDeviceX(long x) const;
	210	long LogicalToDeviceY(long y) const;
	211	long LogicalToDeviceXRel(long x) const;
	212	long LogicalToDeviceYRel(long y) const;
	213
	214	// This group of functions may not do any conversion
	215	// if m_scaleGDI is TRUE, since the HDC does the
	216	// conversion automatically.
	217	// m_scaleGDI NOW OBSOLETE
	218	long ImplDeviceToLogicalX(long x) const;
	219	long ImplDeviceToLogicalY(long y) const;
	220	long ImplDeviceToLogicalXRel(long x) const;
	221	long ImplDeviceToLogicalYRel(long y) const;
	222	long ImplLogicalToDeviceX(long x) const;
	223	long ImplLogicalToDeviceY(long y) const;
	224	long ImplLogicalToDeviceXRel(long x) const;
	225	long ImplLogicalToDeviceYRel(long y) const;
	226
2bda0e17 KB	227	virtual bool CanDrawBitmap(void) const;
	228	virtual bool CanGetTextExtent(void) const;
	229
2bda0e17 KB	230	virtual void SetTextForeground(const wxColour& colour);
	231	virtual void SetTextBackground(const wxColour& colour);
	232	inline virtual bool Ok(void) const {return m_ok;};
	233	inline virtual int GetMapMode(void) const {return m_mappingMode;};
	234
	235	inline virtual wxBrush GetBackground(void) const { return (wxBrush) &m_backgroundBrush ;}
	236	inline virtual wxBrush GetBrush(void) const { return (wxBrush) &m_brush ;}
	237	inline virtual wxFont GetFont(void) const { return (wxFont) &m_font ;}
	238	inline virtual int GetLogicalFunction(void) const { return m_logicalFunction ;}
	239	inline virtual wxPen GetPen(void) const { return (wxPen) &m_pen ;}
	240	inline virtual wxColour&GetTextBackground(void) const { return (wxColour&) m_textBackgroundColour ;}
	241	inline virtual wxColour&GetTextForeground(void) const { return (wxColour&) m_textForegroundColour ;}
	242
	243	virtual void SetLogicalScale(double x, double y);
	244	virtual inline void GetUserScale(double* x, double y) const { x = m_userScaleX; *y = m_userScaleY; }
	245	virtual void CalcBoundingBox(long x, long y);
	246	// Get the final bounding box of the PostScript or Metafile picture.
	247	virtual inline long MinX(void) const { return m_minX; }
	248	virtual inline long MaxX(void) const { return m_maxX; }
	249	virtual inline long MinY(void) const { return m_minY; }
	250	virtual inline long MaxY(void) const { return m_maxY; }
	251	// Sometimes we need to override optimization, e.g.
	252	// if other software is drawing onto our surface and we
	253	// can't be sure of who's done what.
	254	virtual inline void SetOptimization(bool WXUNUSED(opt)) { }
	255	virtual inline bool GetOptimization(void) { return FALSE; }
	256
	257	virtual void GetClippingBox(long x,long y,long w,long h) const ;
6a6c0a8b JS	258	inline void GetClippingBox(wxRect& rect) const
	259	{
	260	long x, y, w, h;
	261	GetClippingBox(&x, &y, &w, &h); rect.x = x; rect.y = y; rect.width = w; rect.height = h;
	262	}
2bda0e17 KB	263
	264	virtual void SetRop(WXHDC cdc);
	265	virtual void DoClipping(WXHDC cdc);
	266	virtual void SelectOldObjects(WXHDC dc);
	267
	268	inline wxWindow *GetWindow(void) const { return m_canvas; }
	269	inline void SetWindow(wxWindow *win) { m_canvas = win; }
	270	inline WXHDC GetHDC(void) const { return m_hDC; }
	271	inline void SetHDC(WXHDC dc, bool bOwnsDC = FALSE) { m_hDC = dc; m_bOwnsDC = bOwnsDC; }
2bda0e17 KB	272
	273	protected:
	274	bool m_colour;
	275	bool m_ok;
	276	bool m_clipping;
	277	bool m_isInteractive;
	278
	279	// Coordinate system variables
	280	long m_logicalOriginX;
	281	long m_logicalOriginY;
	282
	283	long m_deviceOriginX;
	284	long m_deviceOriginY;
	285
	286	double m_logicalScaleX;
	287	double m_logicalScaleY;
	288
	289	double m_userScaleX;
	290	double m_userScaleY;
	291
6f65e337 JS	292	int m_signX; // Used by SetAxisOrientation() to
	293	int m_signY; // invert the axes
	294
2bda0e17 KB	295	int m_mappingMode;
	296
	297	long m_minX; // bounding box
	298	long m_minY;
	299	long m_maxX;
	300	long m_maxY;
	301
	302	int m_logicalFunction;
	303	int m_backgroundMode;
	304
	305	wxPen m_pen;
	306	wxBrush m_brush;
	307	wxBrush m_backgroundBrush;
	308	wxColour m_textForegroundColour;
	309	wxColour m_textBackgroundColour;
	310	wxFont m_font;
	311	wxPalette m_palette;
2bda0e17 KB	312	int m_clipX1;
	313	int m_clipY1;
	314	int m_clipX2;
	315	int m_clipY2;
	316	// bool m_dontDelete;
	317	int m_windowExtX;
	318	int m_windowExtY;
	319	double m_systemScaleX;
	320	double m_systemScaleY;
	321
	322	wxWindow * m_canvas;
	323	wxBitmap m_selectedBitmap;
	324	wxString m_filename;
	325
	326	// TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
	327	bool m_bOwnsDC;
	328
	329	WXHDC m_hDC;
	330	int m_hDCCount;
	331
	332	// Store all old GDI objects when do a SelectObject,
	333	// so we can select them back in (this unselecting user's
	334	// objects) so we can safely delete the DC.
	335	WXHBITMAP m_oldBitmap;
	336	WXHPEN m_oldPen;
	337	WXHBRUSH m_oldBrush;
	338	WXHFONT m_oldFont;
	339	WXHPALETTE m_oldPalette;
	340
	341	// Stores scaling, translation, rotation
	342	// wxTransformMatrix m_transformMatrix;
	343
	344	// Do we wish to scale GDI objects too, e.g. pen width?
	345	// bool m_scaleGDI;
	346	};
	347
	348	// Logical to device
	349	// Absolute
	350	#define XLOG2DEV(x) ImplLogicalToDeviceX(x)
	351
	352	#define YLOG2DEV(y) ImplLogicalToDeviceY(y)
	353
	354	// Relative
	355	#define XLOG2DEVREL(x) ImplLogicalToDeviceXRel(x)
	356	#define YLOG2DEVREL(y) ImplLogicalToDeviceYRel(y)
	357
	358	// Device to logical
	359	// Absolute
	360	#define XDEV2LOG(x) ImplDeviceToLogicalX(x)
	361
	362	#define YDEV2LOG(y) ImplDeviceToLogicalY(y)
	363
	364	// Relative
	365	#define XDEV2LOGREL(x) ImplDeviceToLogicalXRel(x)
	366	#define YDEV2LOGREL(y) ImplDeviceToLogicalYRel(y)
	367
	368	/*
	369	* Have the same macros as for XView but not for every operation:
	370	* just for calculating window/viewport extent (a better way of scaling).
	371	*/
	372
	373	// Logical to device
	374	// Absolute
	375	#define MS_XLOG2DEV(x) LogicalToDevice(x)
376
377	#define MS_YLOG2DEV(y) LogicalToDevice(y)
378
379	// Relative
380	#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
381	#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)
382
383	// Device to logical
384	// Absolute
385	#define MS_XDEV2LOG(x) DeviceToLogicalX(x)
386
387	#define MS_YDEV2LOG(y) DeviceToLogicalY(y)
388
389	// Relative
390	#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
391	#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
392
393	#define MM_POINTS 7
394	#define MM_METRIC 8
395
396	extern int wxPageNumber;
397
398	// Conversion
399	#define METRIC_CONVERSION_CONSTANT 0.0393700787
400
401	// Scaling factors for various unit conversions
402	#define mm2inches (METRIC_CONVERSION_CONSTANT)
403	#define inches2mm (1/METRIC_CONVERSION_CONSTANT)
404
405	#define mm2twips (METRIC_CONVERSION_CONSTANT*1440)
406	#define twips2mm (1/(METRIC_CONVERSION_CONSTANT*1440))
407
408	#define mm2pt (METRIC_CONVERSION_CONSTANT*72)
409	#define pt2mm (1/(METRIC_CONVERSION_CONSTANT*72))
410
411	#define wx_round(a) (int)((a)+.5)
412
413
414	#endif
415	// __DCH__