[wxWidgets.git] / include / wx / os2 / dc.h

/////////////////////////////////////////////////////////////////////////////
// Name:        dc.h
// Purpose:     wxDC class
// Author:      David Webster
// Modified by:
// Created:     08/26/99
// RCS-ID:      $Id$
// Copyright:   (c) David Webster
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_DC_H_
#define _WX_DC_H_

#include "wx/defs.h"
//#include "wx/dc.h"

// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------

// Logical to device
// Absolute
#define XLOG2DEV(x) (x)
#define YLOG2DEV(y) (y)

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

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

#define YDEV2LOG(y) (y)

// Relative
#define XDEV2LOGREL(x) (x)
#define YDEV2LOGREL(y) (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 YSCALE(y) (yorigin - (y))

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

#if wxUSE_DC_CACHEING
/*
 * Cached blitting, maintaining a cache
 * of bitmaps required for transparent blitting
 * instead of constant creation/deletion
 */

class wxDCCacheEntry : public wxObject
{
public:
    wxDCCacheEntry( WXHBITMAP hBitmap
                   ,int       nWidth
                   ,int       nHeight
                   ,int       nDepth
                  );
    wxDCCacheEntry( HPS   hPS
                   ,int   nDepth
                  );
    ~wxDCCacheEntry();

    WXHBITMAP                       m_hBitmap;
    HPS                             m_hPS;
    int                             m_nWidth;
    int                             m_nHeight;
    int                             m_nDepth;
}; // end of CLASS wxDCCacheEntry
#endif

class WXDLLEXPORT wxDC : public wxDCBase
{
    DECLARE_DYNAMIC_CLASS(wxDC)

public:
    wxDC(void);
    ~wxDC();

    // implement base class pure virtuals
    // ----------------------------------

    virtual void Clear(void);

    virtual bool    StartDoc(const wxString& rsMessage);
    virtual void    EndDoc(void);

    virtual void    StartPage(void);
    virtual void    EndPage(void);

    virtual void    SetFont(const wxFont& rFont);
    virtual void    SetPen(const wxPen& rPen);
    virtual void    SetBrush(const wxBrush& rBrush);
    virtual void    SetBackground(const wxBrush& rBrush);
    virtual void    SetBackgroundMode(int nMode);
    virtual void    SetPalette(const wxPalette& rPalette);

    virtual void    DestroyClippingRegion(void);

    virtual wxCoord GetCharHeight(void) const;
    virtual wxCoord GetCharWidth(void) const;
    virtual void    DoGetTextExtent( const wxString& rsString
                                    ,wxCoord*        pX
                                    ,wxCoord*        pY
                                    ,wxCoord*        pDescent = NULL
                                    ,wxCoord*        pExternalLeading = NULL
                                    ,wxFont*         pTheFont = NULL
                                   ) const;
    virtual bool    CanDrawBitmap(void) const;
    virtual bool    CanGetTextExtent(void) const;
    virtual int     GetDepth(void) const;
    virtual wxSize  GetPPI(void) const;

    virtual void    SetMapMode(int nMode);
    virtual void    SetUserScale( double dX
                                 ,double dY
                                );
    virtual void    SetSystemScale( double dX
                                   ,double dY
                                  );
    virtual void    SetLogicalScale( double dX
                                    ,double dY
                                   );
    virtual void    SetLogicalOrigin( wxCoord vX
                                     ,wxCoord vY
                                    );
    virtual void    SetDeviceOrigin( wxCoord vX
                                    ,wxCoord vY
                                   );
    virtual void    SetAxisOrientation( bool bXLeftRight
                                       ,bool bYBottomUp
                                      );
    virtual void    SetLogicalFunction(int nFunction);

    // implementation from now on
    // --------------------------

    virtual void    SetRop(WXHDC hCdc);
    virtual void    SelectOldObjects(WXHDC hDc);

    wxWindow*       GetWindow(void) const { return m_pCanvas; }
    void            SetWindow(wxWindow* pWin) { m_pCanvas = pWin; }

    WXHDC           GetHDC(void) const { return m_hDC; }
    void            SetHDC( WXHDC hDc
                           ,bool  bOwnsDC = FALSE
                          )
    {
        m_hDC = hDc;
        m_bOwnsDC = bOwnsDC;
    }

    HPS             GetHPS(void) const { return m_hPS; }
    void            SetHPS(HPS hPS)
    {
        HDC                         hDC = ::GpiQueryDevice(hPS);
        m_hPS = hPS;
    }
    const wxBitmap& GetSelectedBitmap(void) const { return m_vSelectedBitmap; }
    wxBitmap&       GetSelectedBitmap(void) { return m_vSelectedBitmap; }

    void            UpdateClipBox();

#if wxUSE_DC_CACHEING
    static wxDCCacheEntry* FindBitmapInCache( HPS hPS
                                             ,int nWidth
                                             ,int nHeight
                                            );
    static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis
                                         ,HPS             hPS
                                        );

    static void AddToBitmapCache(wxDCCacheEntry* pEntry);
    static void AddToDCCache(wxDCCacheEntry* pEntry);
    static void ClearCache(void);
#endif

protected:
    virtual bool DoFloodFill( wxCoord         vX
                             ,wxCoord         vY
                             ,const wxColour& rCol
                             ,int             nStyle = wxFLOOD_SURFACE
                            );

    virtual bool DoGetPixel( wxCoord   vX
                            ,wxCoord   vY
                            ,wxColour* pCol
                           ) const;

    virtual void DoDrawPoint( wxCoord vX
                             ,wxCoord vY
                            );
    virtual void DoDrawLine( wxCoord vX1
                            ,wxCoord vY1
                            ,wxCoord vX2
                            ,wxCoord vY2
                           );

    virtual void DoDrawArc( wxCoord vX1
                           ,wxCoord vY1
                           ,wxCoord vX2
                           ,wxCoord vY2
                           ,wxCoord vXc
                           ,wxCoord vYc
                          );
    virtual void DoDrawCheckMark( wxCoord vX
                                 ,wxCoord vY
                                 ,wxCoord vWidth
                                 ,wxCoord vHeight
                                );
    virtual void DoDrawEllipticArc( wxCoord vX
                                   ,wxCoord vY
                                   ,wxCoord vW
                                   ,wxCoord vH
                                   ,double  dSa
                                   ,double  dEa
                                  );

    virtual void DoDrawRectangle( wxCoord vX
                                 ,wxCoord vY
                                 ,wxCoord vWidth
                                 ,wxCoord vHeight
                                );
    virtual void DoDrawRoundedRectangle( wxCoord vX
                                        ,wxCoord vY
                                        ,wxCoord vWidth
                                        ,wxCoord vHeight
                                        ,double  dRadius
                                       );
    virtual void DoDrawEllipse( wxCoord vX
                               ,wxCoord vY
                               ,wxCoord vWidth
                               ,wxCoord vHeight
                              );

    virtual void DoCrossHair( wxCoord vX
                             ,wxCoord vY
                            );

    virtual void DoDrawIcon( const wxIcon& rIcon
                            ,wxCoord       vX
                            ,wxCoord       vY
                           );
    virtual void DoDrawBitmap( const wxBitmap& rBmp
                              ,wxCoord         vX
                              ,wxCoord         vY
                              ,bool            bUseMask = FALSE
                             );

    virtual void DoDrawText( const wxString& rsText
                            ,wxCoord         vX
                            ,wxCoord         vY
                           );
    virtual void DoDrawRotatedText( const wxString& rsText
                                   ,wxCoord         vX
                                   ,wxCoord         vY
                                   ,double          dAngle
                                  );

    virtual bool DoBlit( wxCoord vXdest
                        ,wxCoord vYdest
                        ,wxCoord vWidth
                        ,wxCoord vHeight
                        ,wxDC*   pSource
                        ,wxCoord vXsrc
                        ,wxCoord vYsrc
                        ,int     nRop = wxCOPY
                        ,bool    bUseMask = FALSE
                        ,wxCoord vXsrcMask = -1
                        ,wxCoord vYsrcMask = -1
                       );

    virtual void DoSetClippingRegionAsRegion(const wxRegion& rRegion);
    virtual void DoSetClippingRegion( wxCoord vX
                                     ,wxCoord vY
                                     ,wxCoord vWidth
                                     ,wxCoord vHeight
                                    );
    virtual void DoGetClippingRegion( wxCoord* pX
                                     ,wxCoord* pY
                                     ,wxCoord* pWidth
                                     ,wxCoord* pHeight)
    {
        GetClippingBox( pX
                       ,pY
                       ,pWidth
                       ,pHeight
                      );
    }

    virtual void DoGetSize( int* pWidth
                           ,int* pHeight
                          ) const;
    virtual void DoGetSizeMM( int* pWidth
                             ,int* pHeight
                            ) const;

    virtual void DoDrawLines( int     n
                             ,wxPoint vaPoints[]
                             ,wxCoord vXoffset
                             ,wxCoord yYoffset
                            );
    virtual void DoDrawPolygon( int     n
                               ,wxPoint vaPoints[]
                               ,wxCoord vXoffset
                               ,wxCoord vYoffset
                               ,int     nFillStyle = wxODDEVEN_RULE
                              );

#if wxUSE_PALETTE
    void DoSelectPalette(bool bRealize = FALSE);
    void InitializePalette(void);
#endif // wxUSE_PALETTE

    //
    // common part of DoDrawText() and DoDrawRotatedText()
    //
    void DrawAnyText( const wxString& rsText
                     ,wxCoord         vX
                     ,wxCoord         vY
                    );

    // OS2-specific member variables ?? do we even need this under OS/2?
    int                             m_nWindowExtX;
    int                             m_nWindowExtY;

    //
    // the window associated with this DC (may be NULL)
    //
    wxWindow*                       m_pCanvas;
    wxBitmap                        m_vSelectedBitmap;

public:
    // PM specific stuff
    HPS                             m_hPS;
    HPS                             m_hOldPS;   // old hPS, if any
    bool                            m_bIsPaintTime;// True at Paint Time

    RECTL                           m_vRclPaint; // Bounding rectangle at Paint time etc.
    //
    // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
    //
    bool                            m_bOwnsDC:1;

    //
    // our HDC
    //
    WXHDC                           m_hDC;

    //
    // 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_hOldBitmap;
    WXHPEN                          m_hOldPen;
    WXHBRUSH                        m_hOldBrush;
    WXHFONT                         m_hOldFont;
    WXHPALETTE                      m_hOldPalette;

#if wxUSE_DC_CACHEING
    static wxList                   m_svBitmapCache;
    static wxList                   m_svDCCache;
#endif
}; // end of CLASS wxDC
#endif
    // _WX_DC_H_
Commit	Line	Data
0e320a79 DW	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: dc.h
	3	// Purpose: wxDC class
f0a56ab0	4	// Author: David Webster
0e320a79	5	// Modified by:
f0a56ab0	6	// Created: 08/26/99
0e320a79	7	// RCS-ID: $Id$
f0a56ab0 DW	8	// Copyright: (c) David Webster
f0a56ab0 DW	9	// Licence: wxWindows licence
0e320a79 DW	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef _WX_DC_H_
	13	#define _WX_DC_H_
	14
fb46a9a6	15	#include "wx/defs.h"
d7e1a322	16	//#include "wx/dc.h"
0e320a79	17
fb46a9a6 DW	18	// ---------------------------------------------------------------------------
	19	// macros
	20	// ---------------------------------------------------------------------------
	21
	22	// Logical to device
	23	// Absolute
	24	#define XLOG2DEV(x) (x)
	25	#define YLOG2DEV(y) (y)
	26
	27	// Relative
	28	#define XLOG2DEVREL(x) (x)
	29	#define YLOG2DEVREL(y) (y)
	30
	31	// Device to logical
	32	// Absolute
	33	#define XDEV2LOG(x) (x)
	34
	35	#define YDEV2LOG(y) (y)
	36
	37	// Relative
	38	#define XDEV2LOGREL(x) (x)
	39	#define YDEV2LOGREL(y) (y)
	40
	41	/*
	42	* Have the same macros as for XView but not for every operation:
	43	* just for calculating window/viewport extent (a better way of scaling).
	44	*/
	45
	46	// Logical to device
	47	// Absolute
	48	#define MS_XLOG2DEV(x) LogicalToDevice(x)
	49
	50	#define MS_YLOG2DEV(y) LogicalToDevice(y)
	51
	52	// Relative
	53	#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
	54	#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)
	55
	56	// Device to logical
	57	// Absolute
	58	#define MS_XDEV2LOG(x) DeviceToLogicalX(x)
	59
	60	#define MS_YDEV2LOG(y) DeviceToLogicalY(y)
0e320a79	61
fb46a9a6 DW	62	// Relative
	63	#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
	64	#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
0e320a79	65
fb46a9a6	66	#define YSCALE(y) (yorigin - (y))
0e320a79	67
fb46a9a6	68	#define wx_round(a) (int)((a)+.5)
0e320a79	69
6835592c DW	70	#if wxUSE_DC_CACHEING
	71	/*
	72	* Cached blitting, maintaining a cache
	73	* of bitmaps required for transparent blitting
	74	* instead of constant creation/deletion
	75	*/
	76
	77	class wxDCCacheEntry : public wxObject
	78	{
	79	public:
	80	wxDCCacheEntry( WXHBITMAP hBitmap
	81	,int nWidth
	82	,int nHeight
	83	,int nDepth
	84	);
	85	wxDCCacheEntry( HPS hPS
	86	,int nDepth
	87	);
	88	~wxDCCacheEntry();
	89
	90	WXHBITMAP m_hBitmap;
	91	HPS m_hPS;
	92	int m_nWidth;
	93	int m_nHeight;
	94	int m_nDepth;
	95	}; // end of CLASS wxDCCacheEntry
	96	#endif
	97
fb46a9a6	98	class WXDLLEXPORT wxDC : public wxDCBase
54da4255	99	{
fb46a9a6	100	DECLARE_DYNAMIC_CLASS(wxDC)
54da4255	101
fb46a9a6	102	public:
d7e1a322	103	wxDC(void);
fb46a9a6 DW	104	~wxDC();
	105
	106	// implement base class pure virtuals
	107	// ----------------------------------
	108
f6bcfd97 BP	109	virtual void Clear(void);
	110
	111	virtual bool StartDoc(const wxString& rsMessage);
	112	virtual void EndDoc(void);
	113
	114	virtual void StartPage(void);
	115	virtual void EndPage(void);
	116
	117	virtual void SetFont(const wxFont& rFont);
	118	virtual void SetPen(const wxPen& rPen);
	119	virtual void SetBrush(const wxBrush& rBrush);
	120	virtual void SetBackground(const wxBrush& rBrush);
	121	virtual void SetBackgroundMode(int nMode);
	122	virtual void SetPalette(const wxPalette& rPalette);
	123
	124	virtual void DestroyClippingRegion(void);
	125
	126	virtual wxCoord GetCharHeight(void) const;
	127	virtual wxCoord GetCharWidth(void) const;
	128	virtual void DoGetTextExtent( const wxString& rsString
	129	,wxCoord* pX
	130	,wxCoord* pY
	131	,wxCoord* pDescent = NULL
	132	,wxCoord* pExternalLeading = NULL
	133	,wxFont* pTheFont = NULL
	134	) const;
	135	virtual bool CanDrawBitmap(void) const;
	136	virtual bool CanGetTextExtent(void) const;
	137	virtual int GetDepth(void) const;
	138	virtual wxSize GetPPI(void) const;
	139
	140	virtual void SetMapMode(int nMode);
	141	virtual void SetUserScale( double dX
	142	,double dY
	143	);
	144	virtual void SetSystemScale( double dX
	145	,double dY
	146	);
	147	virtual void SetLogicalScale( double dX
	148	,double dY
	149	);
	150	virtual void SetLogicalOrigin( wxCoord vX
	151	,wxCoord vY
	152	);
	153	virtual void SetDeviceOrigin( wxCoord vX
	154	,wxCoord vY
	155	);
	156	virtual void SetAxisOrientation( bool bXLeftRight
	157	,bool bYBottomUp
	158	);
	159	virtual void SetLogicalFunction(int nFunction);
1408104d	160
fb46a9a6 DW	161	// implementation from now on
fb46a9a6 DW	162	// --------------------------
54da4255	163
f6bcfd97 BP	164	virtual void SetRop(WXHDC hCdc);
f6bcfd97 BP	165	virtual void SelectOldObjects(WXHDC hDc);
ce44c50e	166
f6bcfd97 BP	167	wxWindow* GetWindow(void) const { return m_pCanvas; }
f6bcfd97 BP	168	void SetWindow(wxWindow* pWin) { m_pCanvas = pWin; }
ce44c50e	169
f6bcfd97 BP	170	WXHDC GetHDC(void) const { return m_hDC; }
	171	void SetHDC( WXHDC hDc
	172	,bool bOwnsDC = FALSE
	173	)
ce44c50e	174	{
f6bcfd97	175	m_hDC = hDc;
ce44c50e DW	176	m_bOwnsDC = bOwnsDC;
	177	}
	178
d8fcb5e8 DW	179	HPS GetHPS(void) const { return m_hPS; }
	180	void SetHPS(HPS hPS)
	181	{
	182	HDC hDC = ::GpiQueryDevice(hPS);
	183	m_hPS = hPS;
	184	}
f6bcfd97 BP	185	const wxBitmap& GetSelectedBitmap(void) const { return m_vSelectedBitmap; }
	186	wxBitmap& GetSelectedBitmap(void) { return m_vSelectedBitmap; }
	187
210a651b DW	188	void UpdateClipBox();
210a651b DW	189
6835592c DW	190	#if wxUSE_DC_CACHEING
	191	static wxDCCacheEntry* FindBitmapInCache( HPS hPS
	192	,int nWidth
	193	,int nHeight
	194	);
	195	static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis
	196	,HPS hPS
	197	);
	198
	199	static void AddToBitmapCache(wxDCCacheEntry* pEntry);
	200	static void AddToDCCache(wxDCCacheEntry* pEntry);
	201	static void ClearCache(void);
	202	#endif
	203
1408104d	204	protected:
387ebd3e	205	virtual bool DoFloodFill( wxCoord vX
f6bcfd97 BP	206	,wxCoord vY
	207	,const wxColour& rCol
	208	,int nStyle = wxFLOOD_SURFACE
	209	);
	210
	211	virtual bool DoGetPixel( wxCoord vX
	212	,wxCoord vY
	213	,wxColour* pCol
	214	) const;
	215
	216	virtual void DoDrawPoint( wxCoord vX
	217	,wxCoord vY
	218	);
	219	virtual void DoDrawLine( wxCoord vX1
	220	,wxCoord vY1
	221	,wxCoord vX2
	222	,wxCoord vY2
	223	);
	224
	225	virtual void DoDrawArc( wxCoord vX1
	226	,wxCoord vY1
	227	,wxCoord vX2
	228	,wxCoord vY2
	229	,wxCoord vXc
	230	,wxCoord vYc
	231	);
	232	virtual void DoDrawCheckMark( wxCoord vX
	233	,wxCoord vY
	234	,wxCoord vWidth
	235	,wxCoord vHeight
	236	);
	237	virtual void DoDrawEllipticArc( wxCoord vX
	238	,wxCoord vY
	239	,wxCoord vW
	240	,wxCoord vH
	241	,double dSa
	242	,double dEa
	243	);
	244
	245	virtual void DoDrawRectangle( wxCoord vX
	246	,wxCoord vY
	247	,wxCoord vWidth
	248	,wxCoord vHeight
	249	);
	250	virtual void DoDrawRoundedRectangle( wxCoord vX
	251	,wxCoord vY
	252	,wxCoord vWidth
	253	,wxCoord vHeight
	254	,double dRadius
	255	);
	256	virtual void DoDrawEllipse( wxCoord vX
	257	,wxCoord vY
	258	,wxCoord vWidth
	259	,wxCoord vHeight
	260	);
	261
	262	virtual void DoCrossHair( wxCoord vX
	263	,wxCoord vY
	264	);
	265
	266	virtual void DoDrawIcon( const wxIcon& rIcon
	267	,wxCoord vX
	268	,wxCoord vY
	269	);
270	virtual void DoDrawBitmap( const wxBitmap& rBmp
271	,wxCoord vX
272	,wxCoord vY
273	,bool bUseMask = FALSE
274	);
275
276	virtual void DoDrawText( const wxString& rsText
277	,wxCoord vX
278	,wxCoord vY
279	);
280	virtual void DoDrawRotatedText( const wxString& rsText
281	,wxCoord vX
282	,wxCoord vY
283	,double dAngle
284	);
285
286	virtual bool DoBlit( wxCoord vXdest
287	,wxCoord vYdest
288	,wxCoord vWidth
289	,wxCoord vHeight
290	,wxDC* pSource
291	,wxCoord vXsrc
292	,wxCoord vYsrc
293	,int nRop = wxCOPY
294	,bool bUseMask = FALSE
6835592c DW	295	,wxCoord vXsrcMask = -1
6835592c DW	296	,wxCoord vYsrcMask = -1
f6bcfd97 BP	297	);
	298
	299	virtual void DoSetClippingRegionAsRegion(const wxRegion& rRegion);
	300	virtual void DoSetClippingRegion( wxCoord vX
	301	,wxCoord vY
	302	,wxCoord vWidth
	303	,wxCoord vHeight
	304	);
	305	virtual void DoGetClippingRegion( wxCoord* pX
	306	,wxCoord* pY
	307	,wxCoord* pWidth
	308	,wxCoord* pHeight)
fb46a9a6	309	{
f6bcfd97 BP	310	GetClippingBox( pX
	311	,pY
	312	,pWidth
	313	,pHeight
	314	);
fb46a9a6	315	}
1408104d	316
f6bcfd97 BP	317	virtual void DoGetSize( int* pWidth
	318	,int* pHeight
	319	) const;
	320	virtual void DoGetSizeMM( int* pWidth
	321	,int* pHeight
	322	) const;
	323
	324	virtual void DoDrawLines( int n
	325	,wxPoint vaPoints[]
	326	,wxCoord vXoffset
	327	,wxCoord yYoffset
	328	);
	329	virtual void DoDrawPolygon( int n
	330	,wxPoint vaPoints[]
	331	,wxCoord vXoffset
	332	,wxCoord vYoffset
	333	,int nFillStyle = wxODDEVEN_RULE
	334	);
fb46a9a6	335
938aa9c4 DW	336	#if wxUSE_PALETTE
	337	void DoSelectPalette(bool bRealize = FALSE);
	338	void InitializePalette(void);
	339	#endif // wxUSE_PALETTE
fb46a9a6	340
f6bcfd97 BP	341	//
	342	// common part of DoDrawText() and DoDrawRotatedText()
	343	//
	344	void DrawAnyText( const wxString& rsText
	345	,wxCoord vX
	346	,wxCoord vY
	347	);
fb46a9a6	348
f6bcfd97 BP	349	// OS2-specific member variables ?? do we even need this under OS/2?
	350	int m_nWindowExtX;
	351	int m_nWindowExtY;
1408104d	352
f6bcfd97 BP	353	//
	354	// the window associated with this DC (may be NULL)
	355	//
	356	wxWindow* m_pCanvas;
	357	wxBitmap m_vSelectedBitmap;
1408104d	358
d7e1a322 DW	359	public:
	360	// PM specific stuff
	361	HPS m_hPS;
	362	HPS m_hOldPS; // old hPS, if any
	363	bool m_bIsPaintTime;// True at Paint Time
	364
	365	RECTL m_vRclPaint; // Bounding rectangle at Paint time etc.
f6bcfd97	366	//
fb46a9a6	367	// TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
f6bcfd97 BP	368	//
f6bcfd97 BP	369	bool m_bOwnsDC:1;
fb46a9a6	370
f6bcfd97	371	//
ac7fb818	372	// our HDC
f6bcfd97 BP	373	//
f6bcfd97 BP	374	WXHDC m_hDC;
1408104d	375
f6bcfd97	376	//
1408104d DW	377	// Store all old GDI objects when do a SelectObject, so we can select them
	378	// back in (this unselecting user's objects) so we can safely delete the
	379	// DC.
f6bcfd97 BP	380	//
	381	WXHBITMAP m_hOldBitmap;
	382	WXHPEN m_hOldPen;
	383	WXHBRUSH m_hOldBrush;
	384	WXHFONT m_hOldFont;
	385	WXHPALETTE m_hOldPalette;
6835592c DW	386
	387	#if wxUSE_DC_CACHEING
	388	static wxList m_svBitmapCache;
	389	static wxList m_svDCCache;
	390	#endif
	391	}; // end of CLASS wxDC
0e320a79 DW	392	#endif
0e320a79 DW	393	// _WX_DC_H_