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

/////////////////////////////////////////////////////////////////////////////
// Name:        dc.h
// Purpose:     wxDC class
// Author:      Julian Smart
// Modified by:
// Created:     17/09/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// 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 ) = 0;
    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 = 0;
    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 ) = 0;
    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 ) = 0;
    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 ) = 0;
    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 ) = 0;
    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 ) = 0;
    virtual void DrawPoint( wxPoint& point );
    
    virtual void DrawLines( int n, wxPoint points[], long xoffset = 0, long yoffset = 0 ) = 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 ) = 0;
    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 ) = 0;
    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 ) = 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 ) = 0;
    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 ) = 0;
    virtual void DrawSpline( int n, wxPoint points[] );
    
    virtual bool CanDrawBitmap(void) const = 0;

    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);
    }

    // DrawBitmap is not always the same as DrawIcon, especially if bitmaps and
    // icons are implemented differently.
    virtual 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 ) = 0;
    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 ) = 0;
    inline void DrawText(const wxString& text, const wxPoint& pt, bool use16bit = FALSE)
    {
        DrawText(text, pt.x, pt.y, use16bit);
    }

    virtual bool CanGetTextExtent(void) const = 0;
    virtual void GetTextExtent( const wxString &string, long *width, long *height,
                     long *descent = NULL, long *externalLeading = NULL,
                     wxFont *theFont = NULL, bool use16 = FALSE ) = 0;
    virtual long GetCharWidth(void) = 0;
    virtual long GetCharHeight(void) = 0;
    
    virtual void Clear(void) = 0;
            
    virtual void SetFont( const wxFont &font ) = 0;
    virtual wxFont& GetFont(void) const { return (wxFont&) m_font; };
    
    virtual void SetPen( const wxPen &pen ) = 0;
    virtual wxPen& GetPen(void) const { return (wxPen&) m_pen; };
    
    virtual void SetBrush( const wxBrush &brush ) = 0;
    virtual wxBrush& GetBrush(void) const { return (wxBrush&) m_brush; };

    virtual void SetBackground( const wxBrush &brush ) = 0;
    virtual wxBrush& GetBackground(void) const { return (wxBrush&) m_backgroundBrush; };

    virtual void SetLogicalFunction( int function ) = 0;
    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 ) = 0;
    virtual int GetBackgroundMode(void) const { return m_backgroundMode; };
    
    virtual void SetPalette( const wxPalette& palette ) = 0;
    void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
    
    // the first two must be overridden and called
    virtual void SetClippingRegion( long x, long y, long width, long height );
    virtual void DestroyClippingRegion(void);
    virtual void GetClippingBox( long *x, long *y, long *width, long *height ) 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 optimize ) { m_optimize = 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;
	}
    // Without device translation, for backing pixmap purposes
    long XLOG2DEV_2(long x) const
	{ 
	  long new_x = x - m_logicalOriginX;
	  if (new_x > 0)
	    return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX;
	  else
	    return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX;
	}
    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;
	}
    // Without device translation, for backing pixmap purposes
    long YLOG2DEV_2(long y) const
	{
	  long new_y = y - m_logicalOriginY;
	  if (new_y > 0)
	    return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY;
	  else
	    return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY;
	}
    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_optimize;      // wxMSW only ?
    bool         m_isInteractive; // For wxPostScriptDC
    wxString     m_filename;      // Ditto
    
    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
    
    float        m_scaleFactor;  // wxPSDC wants to have this. Will disappear.
    
    long         m_clipX1,m_clipY1,m_clipX2,m_clipY2;
    long         m_minX,m_maxX,m_minY,m_maxY;
};

#endif
    // _WX_DC_H_
Commit	Line	Data
9b6dbb09 JS	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: dc.h
	3	// Purpose: wxDC class
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 17/09/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	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
a367b9b3	64	virtual void FloodFill( long x1, long y1, const wxColour& col, int style=wxFLOOD_SURFACE ) = 0;
9b6dbb09 JS	65	inline void FloodFill(const wxPoint& pt, const wxColour& col, int style=wxFLOOD_SURFACE)
9b6dbb09 JS	66	{
a367b9b3	67	FloodFill(pt.x, pt.y, col, style);
9b6dbb09 JS	68	}
	69
	70	virtual bool GetPixel( long x1, long y1, wxColour *col ) const = 0;
	71	inline bool GetPixel(const wxPoint& pt, wxColour *col) const
	72	{
	73	return GetPixel(pt.x, pt.y, col);
	74	}
	75
	76	virtual void DrawLine( long x1, long y1, long x2, long y2 ) = 0;
	77	inline void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
	78	{
	79	DrawLine(pt1.x, pt1.y, pt2.x, pt2.y);
	80	}
	81
	82	virtual void CrossHair( long x, long y ) = 0;
	83	inline void CrossHair(const wxPoint& pt)
	84	{
	85	CrossHair(pt.x, pt.y);
	86	}
	87
	88	virtual void DrawArc( long x1, long y1, long x2, long y2, long xc, long yc ) = 0;
	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
	94	virtual void DrawEllipticArc( long x, long y, long width, long height, double sa, double ea ) = 0;
	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
	100	virtual void DrawPoint( long x, long y ) = 0;
	101	virtual void DrawPoint( wxPoint& point );
	102
	103	virtual void DrawLines( int n, wxPoint points[], long xoffset = 0, long yoffset = 0 ) = 0;
	104	virtual void DrawLines( wxList *points, long xoffset = 0, long yoffset = 0 );
	105	virtual void DrawPolygon( int n, wxPoint points[], long xoffset = 0, long yoffset = 0,
	106	int fillStyle=wxODDEVEN_RULE ) = 0;
	107	virtual void DrawPolygon( wxList *lines, long xoffset = 0, long yoffset = 0,
	108	int fillStyle=wxODDEVEN_RULE );
	109
	110	virtual void DrawRectangle( long x, long y, long width, long height ) = 0;
	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	}
	119	virtual void DrawRoundedRectangle( long x, long y, long width, long height, double radius = 20.0 ) = 0;
	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
	129	virtual void DrawEllipse( long x, long y, long width, long height ) = 0;
	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 );
dfad0599	140	virtual void DrawSpline( wxList *points ) = 0;
9b6dbb09 JS	141	virtual void DrawSpline( int n, wxPoint points[] );
	142
	143	virtual bool CanDrawBitmap(void) const = 0;
	144
793f619f	145	virtual void DrawIcon( const wxIcon &icon, long x, long y);
9b6dbb09 JS	146	inline void DrawIcon(const wxIcon& icon, const wxPoint& pt)
	147	{
	148	DrawIcon(icon, pt.x, pt.y);
	149	}
	150
a367b9b3	151	// DrawBitmap is not always the same as DrawIcon, especially if bitmaps and
9b6dbb09	152	// icons are implemented differently.
a367b9b3	153	virtual void DrawBitmap( const wxBitmap &bmp, long x, long y, bool useMask=FALSE ) ;
9b6dbb09 JS	154
	155	virtual bool Blit( long xdest, long ydest, long width, long height,
	156	wxDC *source, long xsrc, long ysrc, int logical_func = wxCOPY, bool useMask=FALSE ) = 0;
	157	inline bool Blit(const wxPoint& destPt, const wxSize& sz,
	158	wxDC *source, const wxPoint& srcPt, int rop = wxCOPY, bool useMask = FALSE)
	159	{
	160	return Blit(destPt.x, destPt.y, sz.x, sz.y, source, srcPt.x, srcPt.y, rop, useMask);
	161	}
	162
	163	virtual void DrawText( const wxString &text, long x, long y, bool use16 = FALSE ) = 0;
	164	inline void DrawText(const wxString& text, const wxPoint& pt, bool use16bit = FALSE)
	165	{
	166	DrawText(text, pt.x, pt.y, use16bit);
	167	}
	168
	169	virtual bool CanGetTextExtent(void) const = 0;
	170	virtual void GetTextExtent( const wxString &string, long width, long height,
	171	long descent = NULL, long externalLeading = NULL,
	172	wxFont *theFont = NULL, bool use16 = FALSE ) = 0;
	173	virtual long GetCharWidth(void) = 0;
	174	virtual long GetCharHeight(void) = 0;
	175
	176	virtual void Clear(void) = 0;
	177
	178	virtual void SetFont( const wxFont &font ) = 0;
c0ed460c	179	virtual wxFont& GetFont(void) const { return (wxFont&) m_font; };
9b6dbb09 JS	180
9b6dbb09 JS	181	virtual void SetPen( const wxPen &pen ) = 0;
c0ed460c	182	virtual wxPen& GetPen(void) const { return (wxPen&) m_pen; };
9b6dbb09 JS	183
9b6dbb09 JS	184	virtual void SetBrush( const wxBrush &brush ) = 0;
c0ed460c	185	virtual wxBrush& GetBrush(void) const { return (wxBrush&) m_brush; };
9b6dbb09 JS	186
9b6dbb09 JS	187	virtual void SetBackground( const wxBrush &brush ) = 0;
c0ed460c	188	virtual wxBrush& GetBackground(void) const { return (wxBrush&) m_backgroundBrush; };
9b6dbb09 JS	189
	190	virtual void SetLogicalFunction( int function ) = 0;
	191	virtual int GetLogicalFunction(void) const { return m_logicalFunction; };
	192
	193	virtual void SetTextForeground( const wxColour &col );
	194	virtual void SetTextBackground( const wxColour &col );
	195	virtual wxColour& GetTextBackground(void) const { return (wxColour&)m_textBackgroundColour; };
	196	virtual wxColour& GetTextForeground(void) const { return (wxColour&)m_textForegroundColour; };
	197
	198	virtual void SetBackgroundMode( int mode ) = 0;
	199	virtual int GetBackgroundMode(void) const { return m_backgroundMode; };
	200
	201	virtual void SetPalette( const wxPalette& palette ) = 0;
	202	void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
	203
	204	// the first two must be overridden and called
	205	virtual void SetClippingRegion( long x, long y, long width, long height );
	206	virtual void DestroyClippingRegion(void);
	207	virtual void GetClippingBox( long x, long y, long width, long height ) const;
	208
	209	virtual inline long MinX(void) const { return m_minX; }
	210	virtual inline long MaxX(void) const { return m_maxX; }
	211	virtual inline long MinY(void) const { return m_minY; }
	212	virtual inline long MaxY(void) const { return m_maxY; }
	213
	214	virtual void GetSize( int* width, int* height ) const;
	215	inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
	216	virtual void GetSizeMM( long* width, long* height ) const;
	217
	218	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; };
	219	virtual void EndDoc(void) {};
	220	virtual void StartPage(void) {};
	221	virtual void EndPage(void) {};
	222
	223	virtual void SetMapMode( int mode );
	224	virtual int GetMapMode(void) const { return m_mappingMode; };
	225
	226	virtual void SetUserScale( double x, double y );
	227	virtual void GetUserScale( double x, double y );
	228	virtual void SetLogicalScale( double x, double y );
	229	virtual void GetLogicalScale( double x, double y );
	230
	231	virtual void SetLogicalOrigin( long x, long y );
	232	virtual void GetLogicalOrigin( long x, long y );
	233	virtual void SetDeviceOrigin( long x, long y );
	234	virtual void GetDeviceOrigin( long x, long y );
	235	virtual void SetInternalDeviceOrigin( long x, long y );
	236	virtual void GetInternalDeviceOrigin( long x, long y );
	237
	238	virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
	239
16c1f7f3	240	virtual void SetOptimization( bool optimize ) { m_optimize = optimize; };
9b6dbb09 JS	241	virtual bool GetOptimization(void) { return m_optimize; };
	242
	243	virtual long DeviceToLogicalX(long x) const;
	244	virtual long DeviceToLogicalY(long y) const;
	245	virtual long DeviceToLogicalXRel(long x) const;
	246	virtual long DeviceToLogicalYRel(long y) const;
	247	virtual long LogicalToDeviceX(long x) const;
	248	virtual long LogicalToDeviceY(long y) const;
	249	virtual long LogicalToDeviceXRel(long x) const;
	250	virtual long LogicalToDeviceYRel(long y) const;
	251
	252	public:
	253
	254	void CalcBoundingBox( long x, long y );
	255	void ComputeScaleAndOrigin(void);
	256
	257	long XDEV2LOG(long x) const
	258	{
	259	long new_x = x - m_deviceOriginX;
	260	if (new_x > 0)
	261	return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
	262	else
	263	return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
	264	}
	265	long XDEV2LOGREL(long x) const
	266	{
	267	if (x > 0)
	268	return (long)((double)(x) / m_scaleX + 0.5);
	269	else
	270	return (long)((double)(x) / m_scaleX - 0.5);
	271	}
	272	long YDEV2LOG(long y) const
	273	{
	274	long new_y = y - m_deviceOriginY;
	275	if (new_y > 0)
	276	return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
	277	else
	278	return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
	279	}
	280	long YDEV2LOGREL(long y) const
	281	{
	282	if (y > 0)
	283	return (long)((double)(y) / m_scaleY + 0.5);
	284	else
	285	return (long)((double)(y) / m_scaleY - 0.5);
	286	}
	287	long XLOG2DEV(long x) const
	288	{
	289	long new_x = x - m_logicalOriginX;
	290	if (new_x > 0)
	291	return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
	292	else
	293	return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
	294	}
16c1f7f3 JS	295	// Without device translation, for backing pixmap purposes
	296	long XLOG2DEV_2(long x) const
	297	{
	298	long new_x = x - m_logicalOriginX;
	299	if (new_x > 0)
	300	return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX;
	301	else
	302	return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX;
	303	}
9b6dbb09 JS	304	long XLOG2DEVREL(long x) const
	305	{
	306	if (x > 0)
	307	return (long)((double)(x) * m_scaleX + 0.5);
	308	else
	309	return (long)((double)(x) * m_scaleX - 0.5);
	310	}
	311	long YLOG2DEV(long y) const
	312	{
	313	long new_y = y - m_logicalOriginY;
	314	if (new_y > 0)
	315	return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
	316	else
	317	return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
	318	}
16c1f7f3 JS	319	// Without device translation, for backing pixmap purposes
	320	long YLOG2DEV_2(long y) const
	321	{
	322	long new_y = y - m_logicalOriginY;
	323	if (new_y > 0)
	324	return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY;
	325	else
	326	return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY;
	327	}
9b6dbb09 JS	328	long YLOG2DEVREL(long y) const
	329	{
	330	if (y > 0)
	331	return (long)((double)(y) * m_scaleY + 0.5);
	332	else
	333	return (long)((double)(y) * m_scaleY - 0.5);
	334	}
	335
9b6dbb09 JS	336	public:
	337
	338	bool m_ok;
	339	bool m_colour;
	340
	341	// not sure, what these mean
	342	bool m_clipping; // Is clipping on right now ?
9b6dbb09	343	bool m_optimize; // wxMSW only ?
16c1f7f3 JS	344	bool m_isInteractive; // For wxPostScriptDC
16c1f7f3 JS	345	wxString m_filename; // Ditto
9b6dbb09 JS	346
	347	wxPen m_pen;
	348	wxBrush m_brush;
	349	wxBrush m_backgroundBrush;
	350	wxColour m_textForegroundColour;
	351	wxColour m_textBackgroundColour;
	352	wxFont m_font;
	353
	354	int m_logicalFunction;
	355	int m_backgroundMode;
	356	int m_textAlignment; // gone in wxWin 2.0 ?
	357
	358	int m_mappingMode;
	359
	360	// not sure what for, but what is a mm on a screen you don't know the size of?
	361	double m_mm_to_pix_x,m_mm_to_pix_y;
	362
	363	long m_internalDeviceOriginX,m_internalDeviceOriginY; // If un-scrolled is non-zero or
	364	// d.o. changes with scrolling.
	365	// Set using SetInternalDeviceOrigin().
	366
	367	long m_externalDeviceOriginX,m_externalDeviceOriginY; // To be set by external classes
	368	// such as wxScrolledWindow
	369	// using SetDeviceOrigin()
	370
	371	long m_deviceOriginX,m_deviceOriginY; // Sum of the two above.
	372
	373	long m_logicalOriginX,m_logicalOriginY; // User defined.
	374
	375	double m_scaleX,m_scaleY;
	376	double m_logicalScaleX,m_logicalScaleY;
	377	double m_userScaleX,m_userScaleY;
	378	long m_signX,m_signY;
	379
	380	bool m_needComputeScaleX,m_needComputeScaleY; // not yet used
	381
	382	float m_scaleFactor; // wxPSDC wants to have this. Will disappear.
	383
	384	long m_clipX1,m_clipY1,m_clipX2,m_clipY2;
	385	long m_minX,m_maxX,m_minY,m_maxY;
	386	};
	387
	388	#endif
	389	// _WX_DC_H_