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

/////////////////////////////////////////////////////////////////////////////
// Name:        dc.h
// Purpose:     wxDC class
// Author:      AUTHOR
// Modified by:
// Created:     ??/??/98
// RCS-ID:      $Id$
// Copyright:   (c) AUTHOR
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_DC_H_
#define _WX_DC_H_

#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"

//-----------------------------------------------------------------------------
// 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
//-----------------------------------------------------------------------------

extern int wxPageNumber;

//-----------------------------------------------------------------------------
// wxDC
//-----------------------------------------------------------------------------

class WXDLLEXPORT wxDC: public wxObject
{
  DECLARE_ABSTRACT_CLASS(wxDC)

  public:

    wxDC(void);
    ~wxDC(void);
    
    void BeginDrawing(void) {};
    void EndDrawing(void) {};
    
    virtual bool Ok(void) const { return m_ok; };

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

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

    virtual void DrawEllipticArc( long x, long y, long width, long height, 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 );
    virtual void DrawPoint( wxPoint& point );
    
    virtual void DrawLines( int n, wxPoint points[], long xoffset = 0, long yoffset = 0 );
    virtual void DrawLines( wxList *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 DrawPolygon( wxList *lines, 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 DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 );
    virtual void DrawSpline( wxList *points );
    virtual void DrawSpline( int n, wxPoint points[] );
    
    virtual bool CanDrawBitmap(void) const ;

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

    void DrawBitmap( const wxBitmap &bmp, long x, long y, bool useMask=FALSE ) ;

    virtual bool Blit( long xdest, long ydest, long width, long height,
       wxDC *source, long xsrc, long ysrc, int logical_func = 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);
    }

    virtual void DrawText( const wxString &text, long x, long y, bool use16 = FALSE );
    inline void DrawText(const wxString& text, const wxPoint& pt, bool use16bit = FALSE)
    {
        DrawText(text, pt.x, pt.y, use16bit);
    }

    virtual bool CanGetTextExtent(void) const ;
    virtual void GetTextExtent( const wxString &string, long *width, long *height,
                     long *descent = NULL, long *externalLeading = NULL,
                     wxFont *theFont = NULL, bool use16 = FALSE ) const ;
    virtual void GetTextExtent( const wxString &string, int *width, int *height,
                     int *descent = NULL, int *externalLeading = NULL,
                     wxFont *theFont = NULL, bool use16 = FALSE ) const 
    {
    	long lwidth,lheight,ldescent,lexternal ;
    	GetTextExtent( string, &lwidth,&lheight,&ldescent,&lexternal,theFont,use16 ) ;
    	*width = lwidth ;
    	*height = lheight ;
    	if (descent) *descent = ldescent ;
    	if (externalLeading) *externalLeading = lexternal ;
    }
    virtual wxCoord GetCharWidth(void) const;
    virtual wxCoord GetCharHeight(void) const;
    
    virtual void Clear(void);
            
    virtual void SetFont( const wxFont &font );
    virtual wxFont& GetFont(void) const { return (wxFont&) m_font; };
    
    virtual void SetPen( const wxPen &pen );
    virtual wxPen& GetPen(void) const { return (wxPen&) m_pen; };
    
    virtual void SetBrush( const wxBrush &brush );
    virtual wxBrush& GetBrush(void) const { return (wxBrush&) m_brush; };

    virtual void SetBackground( const wxBrush &brush );
    virtual wxBrush& GetBackground(void) const { return (wxBrush&) m_backgroundBrush; };

    virtual void SetLogicalFunction( int function );
    virtual int GetLogicalFunction(void) const { return m_logicalFunction; };
    
    virtual void SetTextForeground( const wxColour &col );
    virtual void SetTextBackground( const wxColour &col );
    virtual wxColour& GetTextBackground(void) const { return (wxColour&)m_textBackgroundColour; };
    virtual wxColour& GetTextForeground(void) const { return (wxColour&)m_textForegroundColour; };
    
    virtual void SetBackgroundMode( int mode );
    virtual int GetBackgroundMode(void) const { return m_backgroundMode; };
    
    virtual void SetPalette( const wxPalette& palette );
    void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
    
    // the first two must be overridden and called
    virtual void SetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
    virtual void SetClippingRegion( const wxRect& rect );
    virtual void DestroyClippingRegion(void);
    virtual void GetClippingBox( wxCoord *x, wxCoord *y, wxCoord *width, wxCoord *height ) const;
    virtual void GetClippingBox( long *x, long *y, long *width, long *height ) const;
    virtual void GetClippingBox(wxRect& rect) const;
    
    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; }

    virtual void GetSize( int* width, int* height ) const;
    inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
    virtual void GetSizeMM( long* width, long* height ) const;
    
    virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; };
    virtual void EndDoc(void) {};
    virtual void StartPage(void) {};
    virtual void EndPage(void) {};
    
    virtual void SetMapMode( int mode );
    virtual int GetMapMode(void) const { return m_mappingMode; };
    
    virtual void SetUserScale( double x, double y );
    virtual void GetUserScale( double *x, double *y );
    virtual void SetLogicalScale( double x, double y );
    virtual void GetLogicalScale( double *x, double *y );
    
    virtual void SetLogicalOrigin( long x, long y );
    virtual void GetLogicalOrigin( long *x, long *y );
    virtual void SetDeviceOrigin( long x, long y );
    virtual void GetDeviceOrigin( long *x, long *y );
    virtual void SetInternalDeviceOrigin( long x, long y );
    virtual void GetInternalDeviceOrigin( long *x, long *y );

    virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
    
    virtual void SetOptimization( bool WXUNUSED(optimize) ) {};
    virtual bool GetOptimization(void) { return m_optimize; };
    
    virtual long DeviceToLogicalX(long x) const;
    virtual long DeviceToLogicalY(long y) const;
    virtual long DeviceToLogicalXRel(long x) const;
    virtual long DeviceToLogicalYRel(long y) const;
    virtual long LogicalToDeviceX(long x) const;
    virtual long LogicalToDeviceY(long y) const;
    virtual long LogicalToDeviceXRel(long x) const;
    virtual long LogicalToDeviceYRel(long y) const;

  public:
  
    void CalcBoundingBox( long x, long y );
    void ComputeScaleAndOrigin(void);
    
    long XDEV2LOG(long x) const
	{
	  long new_x = x - m_deviceOriginX;
	  if (new_x > 0) 
	    return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
	  else
	    return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
	}
    long XDEV2LOGREL(long x) const
	{ 
	  if (x > 0) 
	    return (long)((double)(x) / m_scaleX + 0.5);
	  else
	    return (long)((double)(x) / m_scaleX - 0.5);
	}
    long YDEV2LOG(long y) const
	{
	  long new_y = y - m_deviceOriginY;
	  if (new_y > 0)
	    return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
	  else
	    return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
	}
    long YDEV2LOGREL(long y) const
	{ 
	  if (y > 0)
	    return (long)((double)(y) / m_scaleY + 0.5);
	  else
	    return (long)((double)(y) / m_scaleY - 0.5);
	}
    long XLOG2DEV(long x) const
	{ 
	  long new_x = x - m_logicalOriginX;
	  if (new_x > 0)
	    return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
	  else
	    return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
	}
    long XLOG2DEVREL(long x) const
	{ 
	  if (x > 0)
	    return (long)((double)(x) * m_scaleX + 0.5);
	  else
	    return (long)((double)(x) * m_scaleX - 0.5);
	}
    long YLOG2DEV(long y) const
	{
	  long new_y = y - m_logicalOriginY;
	  if (new_y > 0)
	    return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
	  else
	    return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
	}
    long YLOG2DEVREL(long y) const
	{ 
	  if (y > 0)
	    return (long)((double)(y) * m_scaleY + 0.5);
	  else
	    return (long)((double)(y) * m_scaleY - 0.5);
	}
  
  public:
    
    bool         m_ok;
    bool         m_colour;
    
    // not sure, what these mean
    bool         m_clipping;      // Is clipping on right now ?
    bool         m_isInteractive; // Is GetPixel possible ?
    bool         m_autoSetting;   // wxMSW only ?
    bool         m_dontDelete;    // wxMSW only ?
    bool         m_optimize;      // wxMSW only ?
    wxString     m_filename;      // Not sure where this belongs.
    
    wxPen        m_pen;
    wxBrush      m_brush;
    wxBrush      m_backgroundBrush;
    wxColour     m_textForegroundColour;
    wxColour     m_textBackgroundColour;
    wxFont       m_font;
    
    int          m_logicalFunction;
    int          m_backgroundMode;
    int          m_textAlignment;    // gone in wxWin 2.0 ?
    
    int          m_mappingMode;
    
    // 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; 
    
    long         m_internalDeviceOriginX,m_internalDeviceOriginY;   // If un-scrolled is non-zero or
								    // d.o. changes with scrolling.
								    // Set using SetInternalDeviceOrigin().
								    
    long         m_externalDeviceOriginX,m_externalDeviceOriginY;   // To be set by external classes
                                                                    // such as wxScrolledWindow
								    // using SetDeviceOrigin()
								    
    long         m_deviceOriginX,m_deviceOriginY;                   // Sum of the two above.
    
    long         m_logicalOriginX,m_logicalOriginY;                 // User defined.

    double       m_scaleX,m_scaleY;
    double       m_logicalScaleX,m_logicalScaleY;
    double       m_userScaleX,m_userScaleY;
    long         m_signX,m_signY;
    
    bool         m_needComputeScaleX,m_needComputeScaleY;         // not yet used
    
    long         m_clipX1,m_clipY1,m_clipX2,m_clipY2;
    long         m_minX,m_maxX,m_minY,m_maxY;

//begin wxmac
	GrafPtr				m_macPort ;
	GWorldPtr			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 ;
	
	mutable long	m_macPortId ;
	GrafPtr				m_macOrigPort ;
	Rect					m_macClipRect ;
	Point					m_macLocalOrigin ;
	
	void					MacSetupPort() const ;
	void					MacVerifySetup() const { if ( m_macPortId != m_macCurrentPortId ) MacSetupPort() ; } 

	static long m_macCurrentPortId ;
};

#endif
    // _WX_DC_H_
Commit	Line	Data
0dbd6262 SC	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: dc.h
	3	// Purpose: wxDC class
	4	// Author: AUTHOR
	5	// Modified by:
	6	// Created: ??/??/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) AUTHOR
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef _WX_DC_H_
	13	#define _WX_DC_H_
	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	//-----------------------------------------------------------------------------
	26	// constants
	27	//-----------------------------------------------------------------------------
	28
	29	#ifndef MM_TEXT
	30	#define MM_TEXT 0
	31	#define MM_ISOTROPIC 1
	32	#define MM_ANISOTROPIC 2
	33	#define MM_LOMETRIC 3
	34	#define MM_HIMETRIC 4
	35	#define MM_TWIPS 5
	36	#define MM_POINTS 6
	37	#define MM_METRIC 7
	38	#endif
	39
	40	//-----------------------------------------------------------------------------
	41	// global variables
	42	//-----------------------------------------------------------------------------
	43
	44	extern int wxPageNumber;
	45
	46	//-----------------------------------------------------------------------------
	47	// wxDC
	48	//-----------------------------------------------------------------------------
	49
	50	class WXDLLEXPORT wxDC: public wxObject
	51	{
	52	DECLARE_ABSTRACT_CLASS(wxDC)
	53
	54	public:
	55
	56	wxDC(void);
	57	~wxDC(void);
	58
	59	void BeginDrawing(void) {};
	60	void EndDrawing(void) {};
	61
	62	virtual bool Ok(void) const { return m_ok; };
	63
519cb848	64	virtual void FloodFill( long x1, long y1, const wxColour& col, int style=wxFLOOD_SURFACE );
0dbd6262 SC	65	inline void FloodFill(const wxPoint& pt, const wxColour& col, int style=wxFLOOD_SURFACE)
	66	{
	67	FloodFill(pt.x, pt.y, col, style);
	68	}
	69
519cb848	70	virtual bool GetPixel( long x1, long y1, wxColour *col ) const ;
0dbd6262 SC	71	inline bool GetPixel(const wxPoint& pt, wxColour *col) const
	72	{
	73	return GetPixel(pt.x, pt.y, col);
	74	}
	75
519cb848	76	virtual void DrawLine( long x1, long y1, long x2, long y2 );
0dbd6262 SC	77	inline void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
	78	{
	79	DrawLine(pt1.x, pt1.y, pt2.x, pt2.y);
	80	}
	81
519cb848	82	virtual void CrossHair( long x, long y );
0dbd6262 SC	83	inline void CrossHair(const wxPoint& pt)
	84	{
	85	CrossHair(pt.x, pt.y);
	86	}
	87
519cb848	88	virtual void DrawArc( long x1, long y1, long x2, long y2, long xc, long yc );
0dbd6262 SC	89	inline void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
	90	{
	91	DrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y);
	92	}
	93
519cb848	94	virtual void DrawEllipticArc( long x, long y, long width, long height, double sa, double ea );
0dbd6262 SC	95	virtual void DrawEllipticArc (const wxPoint& pt, const wxSize& sz, double sa, double ea)
	96	{
	97	DrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea);
	98	}
	99
519cb848	100	virtual void DrawPoint( long x, long y );
0dbd6262 SC	101	virtual void DrawPoint( wxPoint& point );
0dbd6262 SC	102
519cb848	103	virtual void DrawLines( int n, wxPoint points[], long xoffset = 0, long yoffset = 0 );
0dbd6262 SC	104	virtual void DrawLines( wxList *points, long xoffset = 0, long yoffset = 0 );
0dbd6262 SC	105	virtual void DrawPolygon( int n, wxPoint points[], long xoffset = 0, long yoffset = 0,
519cb848	106	int fillStyle=wxODDEVEN_RULE );
0dbd6262 SC	107	virtual void DrawPolygon( wxList *lines, long xoffset = 0, long yoffset = 0,
	108	int fillStyle=wxODDEVEN_RULE );
	109
519cb848	110	virtual void DrawRectangle( long x, long y, long width, long height );
0dbd6262 SC	111	inline void DrawRectangle(const wxPoint& pt, const wxSize& sz)
	112	{
	113	DrawRectangle(pt.x, pt.y, sz.x, sz.y);
	114	}
	115	inline void DrawRectangle(const wxRect& rect)
	116	{
	117	DrawRectangle(rect.x, rect.y, rect.width, rect.height);
	118	}
519cb848	119	virtual void DrawRoundedRectangle( long x, long y, long width, long height, double radius = 20.0 );
0dbd6262 SC	120	inline void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, double radius = 20.0)
	121	{
	122	DrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius);
	123	}
	124	inline void DrawRoundedRectangle(const wxRect& rect, double radius = 20.0)
	125	{
	126	DrawRoundedRectangle(rect.x, rect.y, rect.width, rect.height, radius);
	127	}
	128
519cb848	129	virtual void DrawEllipse( long x, long y, long width, long height );
0dbd6262 SC	130	inline void DrawEllipse(const wxPoint& pt, const wxSize& sz)
	131	{
	132	DrawEllipse(pt.x, pt.y, sz.x, sz.y);
	133	}
	134	inline void DrawEllipse(const wxRect& rect)
	135	{
	136	DrawEllipse(rect.x, rect.y, rect.width, rect.height);
	137	}
	138
	139	virtual void DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 );
519cb848	140	virtual void DrawSpline( wxList *points );
0dbd6262 SC	141	virtual void DrawSpline( int n, wxPoint points[] );
0dbd6262 SC	142
519cb848	143	virtual bool CanDrawBitmap(void) const ;
0dbd6262 SC	144
	145	virtual void DrawIcon( const wxIcon &icon, long x, long y, bool useMask=FALSE );
	146	inline void DrawIcon(const wxIcon& icon, const wxPoint& pt)
	147	{
	148	DrawIcon(icon, pt.x, pt.y);
	149	}
	150
519cb848	151	void DrawBitmap( const wxBitmap &bmp, long x, long y, bool useMask=FALSE ) ;
0dbd6262 SC	152
0dbd6262 SC	153	virtual bool Blit( long xdest, long ydest, long width, long height,
519cb848	154	wxDC *source, long xsrc, long ysrc, int logical_func = wxCOPY, bool useMask=FALSE );
0dbd6262 SC	155	inline bool Blit(const wxPoint& destPt, const wxSize& sz,
	156	wxDC *source, const wxPoint& srcPt, int rop = wxCOPY, bool useMask = FALSE)
	157	{
	158	return Blit(destPt.x, destPt.y, sz.x, sz.y, source, srcPt.x, srcPt.y, rop, useMask);
	159	}
	160
519cb848	161	virtual void DrawText( const wxString &text, long x, long y, bool use16 = FALSE );
0dbd6262 SC	162	inline void DrawText(const wxString& text, const wxPoint& pt, bool use16bit = FALSE)
	163	{
	164	DrawText(text, pt.x, pt.y, use16bit);
	165	}
	166
519cb848	167	virtual bool CanGetTextExtent(void) const ;
0dbd6262 SC	168	virtual void GetTextExtent( const wxString &string, long width, long height,
0dbd6262 SC	169	long descent = NULL, long externalLeading = NULL,
519cb848	170	wxFont *theFont = NULL, bool use16 = FALSE ) const ;
4765d335 SC	171	virtual void GetTextExtent( const wxString &string, int width, int height,
	172	int descent = NULL, int externalLeading = NULL,
	173	wxFont *theFont = NULL, bool use16 = FALSE ) const
	174	{
	175	long lwidth,lheight,ldescent,lexternal ;
	176	GetTextExtent( string, &lwidth,&lheight,&ldescent,&lexternal,theFont,use16 ) ;
	177	*width = lwidth ;
	178	*height = lheight ;
	179	if (descent) *descent = ldescent ;
	180	if (externalLeading) *externalLeading = lexternal ;
	181	}
2fc70a88 UJ	182	virtual wxCoord GetCharWidth(void) const;
2fc70a88 UJ	183	virtual wxCoord GetCharHeight(void) const;
0dbd6262	184
519cb848	185	virtual void Clear(void);
0dbd6262	186
519cb848	187	virtual void SetFont( const wxFont &font );
0dbd6262 SC	188	virtual wxFont& GetFont(void) const { return (wxFont&) m_font; };
0dbd6262 SC	189
519cb848	190	virtual void SetPen( const wxPen &pen );
0dbd6262 SC	191	virtual wxPen& GetPen(void) const { return (wxPen&) m_pen; };
0dbd6262 SC	192
519cb848	193	virtual void SetBrush( const wxBrush &brush );
0dbd6262 SC	194	virtual wxBrush& GetBrush(void) const { return (wxBrush&) m_brush; };
0dbd6262 SC	195
519cb848	196	virtual void SetBackground( const wxBrush &brush );
0dbd6262 SC	197	virtual wxBrush& GetBackground(void) const { return (wxBrush&) m_backgroundBrush; };
0dbd6262 SC	198
519cb848	199	virtual void SetLogicalFunction( int function );
0dbd6262 SC	200	virtual int GetLogicalFunction(void) const { return m_logicalFunction; };
	201
	202	virtual void SetTextForeground( const wxColour &col );
	203	virtual void SetTextBackground( const wxColour &col );
	204	virtual wxColour& GetTextBackground(void) const { return (wxColour&)m_textBackgroundColour; };
	205	virtual wxColour& GetTextForeground(void) const { return (wxColour&)m_textForegroundColour; };
	206
519cb848	207	virtual void SetBackgroundMode( int mode );
0dbd6262 SC	208	virtual int GetBackgroundMode(void) const { return m_backgroundMode; };
0dbd6262 SC	209
519cb848	210	virtual void SetPalette( const wxPalette& palette );
0dbd6262 SC	211	void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
	212
	213	// the first two must be overridden and called
2fc70a88 UJ	214	virtual void SetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
2fc70a88 UJ	215	virtual void SetClippingRegion( const wxRect& rect );
0dbd6262	216	virtual void DestroyClippingRegion(void);
2fc70a88	217	virtual void GetClippingBox( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) const;
0dbd6262	218	virtual void GetClippingBox( long x, long y, long width, long height ) const;
2fc70a88	219	virtual void GetClippingBox(wxRect& rect) const;
0dbd6262 SC	220
	221	virtual inline long MinX(void) const { return m_minX; }
	222	virtual inline long MaxX(void) const { return m_maxX; }
	223	virtual inline long MinY(void) const { return m_minY; }
	224	virtual inline long MaxY(void) const { return m_maxY; }
	225
	226	virtual void GetSize( int* width, int* height ) const;
	227	inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
	228	virtual void GetSizeMM( long* width, long* height ) const;
	229
	230	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; };
	231	virtual void EndDoc(void) {};
	232	virtual void StartPage(void) {};
	233	virtual void EndPage(void) {};
	234
	235	virtual void SetMapMode( int mode );
	236	virtual int GetMapMode(void) const { return m_mappingMode; };
	237
	238	virtual void SetUserScale( double x, double y );
	239	virtual void GetUserScale( double x, double y );
	240	virtual void SetLogicalScale( double x, double y );
	241	virtual void GetLogicalScale( double x, double y );
	242
	243	virtual void SetLogicalOrigin( long x, long y );
	244	virtual void GetLogicalOrigin( long x, long y );
	245	virtual void SetDeviceOrigin( long x, long y );
	246	virtual void GetDeviceOrigin( long x, long y );
	247	virtual void SetInternalDeviceOrigin( long x, long y );
	248	virtual void GetInternalDeviceOrigin( long x, long y );
	249
	250	virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
	251
	252	virtual void SetOptimization( bool WXUNUSED(optimize) ) {};
	253	virtual bool GetOptimization(void) { return m_optimize; };
	254
	255	virtual long DeviceToLogicalX(long x) const;
	256	virtual long DeviceToLogicalY(long y) const;
	257	virtual long DeviceToLogicalXRel(long x) const;
	258	virtual long DeviceToLogicalYRel(long y) const;
	259	virtual long LogicalToDeviceX(long x) const;
	260	virtual long LogicalToDeviceY(long y) const;
	261	virtual long LogicalToDeviceXRel(long x) const;
	262	virtual long LogicalToDeviceYRel(long y) const;
	263
	264	public:
	265
	266	void CalcBoundingBox( long x, long y );
	267	void ComputeScaleAndOrigin(void);
	268
	269	long XDEV2LOG(long x) const
	270	{
	271	long new_x = x - m_deviceOriginX;
	272	if (new_x > 0)
	273	return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
	274	else
	275	return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
	276	}
	277	long XDEV2LOGREL(long x) const
	278	{
	279	if (x > 0)
	280	return (long)((double)(x) / m_scaleX + 0.5);
	281	else
	282	return (long)((double)(x) / m_scaleX - 0.5);
	283	}
284	long YDEV2LOG(long y) const
285	{
286	long new_y = y - m_deviceOriginY;
287	if (new_y > 0)
288	return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
289	else
290	return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
291	}
292	long YDEV2LOGREL(long y) const
293	{
294	if (y > 0)
295	return (long)((double)(y) / m_scaleY + 0.5);
296	else
297	return (long)((double)(y) / m_scaleY - 0.5);
298	}
299	long XLOG2DEV(long x) const
300	{
301	long new_x = x - m_logicalOriginX;
302	if (new_x > 0)
303	return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
304	else
305	return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
306	}
307	long XLOG2DEVREL(long x) const
308	{
309	if (x > 0)
310	return (long)((double)(x) * m_scaleX + 0.5);
311	else
312	return (long)((double)(x) * m_scaleX - 0.5);
313	}
314	long YLOG2DEV(long y) const
315	{
316	long new_y = y - m_logicalOriginY;
317	if (new_y > 0)
318	return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
319	else
320	return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
321	}
322	long YLOG2DEVREL(long y) const
323	{
324	if (y > 0)
325	return (long)((double)(y) * m_scaleY + 0.5);
326	else
327	return (long)((double)(y) * m_scaleY - 0.5);
328	}
329
330	public:
331
332	bool m_ok;
333	bool m_colour;
334
335	// not sure, what these mean
336	bool m_clipping; // Is clipping on right now ?
337	bool m_isInteractive; // Is GetPixel possible ?
338	bool m_autoSetting; // wxMSW only ?
339	bool m_dontDelete; // wxMSW only ?
340	bool m_optimize; // wxMSW only ?
341	wxString m_filename; // Not sure where this belongs.
342
343	wxPen m_pen;
344	wxBrush m_brush;
345	wxBrush m_backgroundBrush;
346	wxColour m_textForegroundColour;
347	wxColour m_textBackgroundColour;
348	wxFont m_font;
349
350	int m_logicalFunction;
351	int m_backgroundMode;
352	int m_textAlignment; // gone in wxWin 2.0 ?
353
354	int m_mappingMode;
355
356	// not sure what for, but what is a mm on a screen you don't know the size of?
357	double m_mm_to_pix_x,m_mm_to_pix_y;
358
359	long m_internalDeviceOriginX,m_internalDeviceOriginY; // If un-scrolled is non-zero or
360	// d.o. changes with scrolling.
361	// Set using SetInternalDeviceOrigin().
362
363	long m_externalDeviceOriginX,m_externalDeviceOriginY; // To be set by external classes
364	// such as wxScrolledWindow
365	// using SetDeviceOrigin()
366
367	long m_deviceOriginX,m_deviceOriginY; // Sum of the two above.
368
369	long m_logicalOriginX,m_logicalOriginY; // User defined.
370
371	double m_scaleX,m_scaleY;
372	double m_logicalScaleX,m_logicalScaleY;
373	double m_userScaleX,m_userScaleY;
374	long m_signX,m_signY;
375
376	bool m_needComputeScaleX,m_needComputeScaleY; // not yet used
377
0dbd6262 SC	378	long m_clipX1,m_clipY1,m_clipX2,m_clipY2;
0dbd6262 SC	379	long m_minX,m_maxX,m_minY,m_maxY;
519cb848 SC	380
	381	//begin wxmac
	382	GrafPtr m_macPort ;
8208e181	383	GWorldPtr m_macMask ;
519cb848 SC	384
	385	// in order to preserve the const inheritance of the virtual functions, we have to
	386	// use mutable variables starting from CWPro 5
	387
	388	void MacInstallFont() const ;
	389	void MacInstallPen() const ;
	390	void MacInstallBrush() const ;
	391
	392	mutable bool m_macFontInstalled ;
	393	mutable bool m_macPenInstalled ;
	394	mutable bool m_macBrushInstalled ;
	395
	396	mutable long m_macPortId ;
	397	GrafPtr m_macOrigPort ;
	398	Rect m_macClipRect ;
	399	Point m_macLocalOrigin ;
	400
	401	void MacSetupPort() const ;
	402	void MacVerifySetup() const { if ( m_macPortId != m_macCurrentPortId ) MacSetupPort() ; }
	403
	404	static long m_macCurrentPortId ;
0dbd6262 SC	405	};
	406
	407	#endif
	408	// _WX_DC_H_