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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/os2/dc.h
	3	// Purpose: wxDC class
	4	// Author: David Webster
	5	// Modified by:
	6	// Created: 08/26/99
	7	// Copyright: (c) David Webster
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#ifndef _WX_DC_H_
	12	#define _WX_DC_H_
	13
	14	#include "wx/defs.h"
	15	#include "wx/dc.h"
	16
	17	// ---------------------------------------------------------------------------
	18	// macros
	19	// ---------------------------------------------------------------------------
	20
	21	// Logical to device
	22	// Absolute
	23	#define XLOG2DEV(x) (x)
	24	#define YLOG2DEV(y) (y)
	25
	26	// Relative
	27	#define XLOG2DEVREL(x) (x)
	28	#define YLOG2DEVREL(y) (y)
	29
	30	// Device to logical
	31	// Absolute
	32	#define XDEV2LOG(x) (x)
	33
	34	#define YDEV2LOG(y) (y)
	35
	36	// Relative
	37	#define XDEV2LOGREL(x) (x)
	38	#define YDEV2LOGREL(y) (y)
	39
	40	/*
	41	* Have the same macros as for XView but not for every operation:
	42	* just for calculating window/viewport extent (a better way of scaling).
	43	*/
	44
	45	// Logical to device
	46	// Absolute
	47	#define MS_XLOG2DEV(x) LogicalToDevice(x)
	48
	49	#define MS_YLOG2DEV(y) LogicalToDevice(y)
	50
	51	// Relative
	52	#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
	53	#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)
	54
	55	// Device to logical
	56	// Absolute
	57	#define MS_XDEV2LOG(x) DeviceToLogicalX(x)
	58
	59	#define MS_YDEV2LOG(y) DeviceToLogicalY(y)
	60
	61	// Relative
	62	#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
	63	#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
	64
	65	#define YSCALE(y) (yorigin - (y))
	66
	67	#define wx_round(a) (int)((a)+.5)
	68
	69	#if wxUSE_DC_CACHEING
	70	/*
	71	* Cached blitting, maintaining a cache
	72	* of bitmaps required for transparent blitting
	73	* instead of constant creation/deletion
	74	*/
	75
	76	class wxDCCacheEntry : public wxObject
	77	{
	78	public:
	79	wxDCCacheEntry( WXHBITMAP hBitmap
	80	,int nWidth
	81	,int nHeight
	82	,int nDepth
	83	);
	84	wxDCCacheEntry( HPS hPS
	85	,int nDepth
	86	);
	87	virtual ~wxDCCacheEntry();
	88
	89	WXHBITMAP m_hBitmap;
	90	HPS m_hPS;
	91	int m_nWidth;
	92	int m_nHeight;
	93	int m_nDepth;
	94	}; // end of CLASS wxDCCacheEntry
	95	#endif
	96
	97	// this is an ABC: use one of the derived classes to create a DC associated
	98	// with a window, screen, printer and so on
	99	class WXDLLIMPEXP_CORE wxPMDCImpl : public wxDCImpl
	100	{
	101	DECLARE_DYNAMIC_CLASS(wxDC)
	102
	103	public:
	104	wxPMDCImpl(wxDC *owner, WXHDC hDC);
	105	virtual ~wxPMDCImpl();
	106
	107	// implement base class pure virtuals
	108	// ----------------------------------
	109
	110	virtual void Clear();
	111
	112	virtual bool StartDoc(const wxString& rsMessage);
	113	virtual void EndDoc();
	114
	115	virtual void StartPage();
	116	virtual void EndPage();
	117
	118	virtual void SetFont(const wxFont& rFont);
	119	virtual void SetPen(const wxPen& rPen);
	120	virtual void SetBrush(const wxBrush& rBrush);
	121	virtual void SetBackground(const wxBrush& rBrush);
	122	virtual void SetBackgroundMode(int nMode);
	123	virtual void SetPalette(const wxPalette& rPalette);
	124
	125	virtual void DestroyClippingRegion();
	126
	127	virtual wxCoord GetCharHeight() const;
	128	virtual wxCoord GetCharWidth() const;
	129
	130	virtual bool CanDrawBitmap() const;
	131	virtual bool CanGetTextExtent() const;
	132	virtual int GetDepth() const;
	133	virtual wxSize GetPPI() const;
	134
	135	virtual void SetMapMode(wxMappingMode nMode);
	136	virtual void SetUserScale( double dX
	137	,double dY
	138	);
	139	virtual void SetLogicalScale( double dX
	140	,double dY
	141	);
	142	virtual void SetLogicalOrigin( wxCoord vX
	143	,wxCoord vY
	144	);
	145	virtual void SetDeviceOrigin( wxCoord vX
	146	,wxCoord vY
	147	);
	148	virtual void SetAxisOrientation( bool bXLeftRight
	149	,bool bYBottomUp
	150	);
	151	virtual void SetLogicalFunction(wxRasterOperationMode nFunction);
	152
	153	// implementation from now on
	154	// --------------------------
	155
	156	virtual void SetRop(WXHDC hCdc);
	157	virtual void SelectOldObjects(WXHDC hDc);
	158
	159	wxWindow* GetWindow() const { return m_pCanvas; }
	160	void SetWindow(wxWindow* pWin) { m_pCanvas = pWin; }
	161
	162	WXHDC GetHDC() const { return m_hDC; }
	163	void SetHDC( WXHDC hDc
	164	,bool bOwnsDC = FALSE
	165	)
	166	{
	167	m_hDC = hDc;
	168	m_bOwnsDC = bOwnsDC;
	169	}
	170
	171	HPS GetHPS() const { return m_hPS; }
	172	void SetHPS(HPS hPS)
	173	{
	174	m_hPS = hPS;
	175	}
	176	const wxBitmap& GetSelectedBitmap() const { return m_vSelectedBitmap; }
	177	wxBitmap& GetSelectedBitmap() { return m_vSelectedBitmap; }
	178
	179	void UpdateClipBox();
	180
	181	#if wxUSE_DC_CACHEING
	182	static wxDCCacheEntry* FindBitmapInCache( HPS hPS
	183	,int nWidth
	184	,int nHeight
	185	);
	186	static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis
	187	,HPS hPS
	188	);
	189
	190	static void AddToBitmapCache(wxDCCacheEntry* pEntry);
	191	static void AddToDCCache(wxDCCacheEntry* pEntry);
	192	static void ClearCache();
	193	#endif
	194
	195	protected:
	196	void Init()
	197	{
	198	m_pCanvas = NULL;
	199	m_hOldBitmap = 0;
	200	m_hOldPen = 0;
	201	m_hOldBrush = 0;
	202	m_hOldFont = 0;
	203	#if wxUSE_PALETTE
	204	m_hOldPalette = 0;
	205	#endif // wxUSE_PALETTE
	206
	207	m_bOwnsDC = false;
	208	m_hDC = 0;
	209	m_hOldPS = NULL;
	210	m_hPS = NULL;
	211	m_bIsPaintTime = false; // True at Paint Time
	212
	213	m_pen.SetColour(*wxBLACK);
	214	m_brush.SetColour(*wxWHITE);
	215	}
	216
	217	// create an uninitialized DC: this should be only used by the derived
	218	// classes
	219	wxPMDCImpl( wxDC *owner ) : wxDCImpl( owner ) { Init(); }
	220
	221	public:
	222	virtual void DoGetTextExtent( const wxString& rsString
	223	,wxCoord* pX
	224	,wxCoord* pY
	225	,wxCoord* pDescent = NULL
	226	,wxCoord* pExternalLeading = NULL
	227	,const wxFont* pTheFont = NULL
	228	) const;
	229	virtual bool DoFloodFill( wxCoord vX
	230	,wxCoord vY
	231	,const wxColour& rCol
	232	,wxFloodFillStyle nStyle = wxFLOOD_SURFACE
	233	);
	234
	235	virtual bool DoGetPixel( wxCoord vX
	236	,wxCoord vY
	237	,wxColour* pCol
	238	) const;
	239
	240	virtual void DoDrawPoint( wxCoord vX
	241	,wxCoord vY
	242	);
	243	virtual void DoDrawLine( wxCoord vX1
	244	,wxCoord vY1
	245	,wxCoord vX2
	246	,wxCoord vY2
	247	);
	248
	249	virtual void DoDrawArc( wxCoord vX1
	250	,wxCoord vY1
	251	,wxCoord vX2
	252	,wxCoord vY2
	253	,wxCoord vXc
	254	,wxCoord vYc
	255	);
	256	virtual void DoDrawCheckMark( wxCoord vX
	257	,wxCoord vY
	258	,wxCoord vWidth
	259	,wxCoord vHeight
	260	);
	261	virtual void DoDrawEllipticArc( wxCoord vX
	262	,wxCoord vY
	263	,wxCoord vW
	264	,wxCoord vH
	265	,double dSa
	266	,double dEa
	267	);
	268
	269	virtual void DoDrawRectangle( wxCoord vX
	270	,wxCoord vY
	271	,wxCoord vWidth
	272	,wxCoord vHeight
	273	);
	274	virtual void DoDrawRoundedRectangle( wxCoord vX
	275	,wxCoord vY
	276	,wxCoord vWidth
	277	,wxCoord vHeight
	278	,double dRadius
	279	);
	280	virtual void DoDrawEllipse( wxCoord vX
	281	,wxCoord vY
	282	,wxCoord vWidth
	283	,wxCoord vHeight
	284	);
	285
	286	virtual void DoCrossHair( wxCoord vX
	287	,wxCoord vY
	288	);
	289
	290	virtual void DoDrawIcon( const wxIcon& rIcon
	291	,wxCoord vX
	292	,wxCoord vY
	293	);
	294	virtual void DoDrawBitmap( const wxBitmap& rBmp
	295	,wxCoord vX
	296	,wxCoord vY
	297	,bool bUseMask = FALSE
	298	);
	299
	300	virtual void DoDrawText( const wxString& rsText
	301	,wxCoord vX
	302	,wxCoord vY
	303	);
	304	virtual void DoDrawRotatedText( const wxString& rsText
	305	,wxCoord vX
	306	,wxCoord vY
	307	,double dAngle
	308	);
	309
	310	virtual bool DoBlit( wxCoord vXdest
	311	,wxCoord vYdest
	312	,wxCoord vWidth
	313	,wxCoord vHeight
	314	,wxDC* pSource
	315	,wxCoord vXsrc
	316	,wxCoord vYsrc
	317	,wxRasterOperationMode nRop = wxCOPY
	318	,bool bUseMask = FALSE
	319	,wxCoord vXsrcMask = -1
	320	,wxCoord vYsrcMask = -1
	321	);
	322
	323	virtual void DoSetClippingRegion( wxCoord vX
	324	,wxCoord vY
	325	,wxCoord vWidth
	326	,wxCoord vHeight
	327	);
	328	virtual void DoSetDeviceClippingRegion(const wxRegion& rRegion);
	329
	330	virtual void DoGetSize( int* pWidth
	331	,int* pHeight
	332	) const;
	333	virtual void DoGetSizeMM( int* pWidth
	334	,int* pHeight
	335	) const;
	336
	337	virtual void DoDrawLines( int n
	338	,const wxPoint vaPoints[]
	339	,wxCoord vXoffset
	340	,wxCoord yYoffset
	341	);
	342	virtual void DoDrawPolygon( int n
	343	,const wxPoint vaPoints[]
	344	,wxCoord vXoffset
	345	,wxCoord vYoffset
	346	,wxPolygonFillMode nFillStyle = wxODDEVEN_RULE
	347	);
	348
	349	#if wxUSE_PALETTE
	350	void DoSelectPalette(bool bRealize = FALSE);
	351	void InitializePalette();
	352	#endif // wxUSE_PALETTE
	353
	354	protected:
	355	//
	356	// common part of DoDrawText() and DoDrawRotatedText()
	357	//
	358	void DrawAnyText( const wxString& rsText
	359	,wxCoord vX
	360	,wxCoord vY
	361	);
	362
	363	// OS2-specific member variables ?? do we even need this under OS/2?
	364	int m_nWindowExtX;
	365	int m_nWindowExtY;
	366
	367	//
	368	// the window associated with this DC (may be NULL)
	369	//
	370	wxWindow* m_pCanvas;
	371	wxBitmap m_vSelectedBitmap;
	372
	373	public:
	374	// PM specific stuff
	375	HPS m_hPS;
	376	HPS m_hOldPS; // old hPS, if any
	377	bool m_bIsPaintTime;// True at Paint Time
	378
	379	RECTL m_vRclPaint; // Bounding rectangle at Paint time etc.
	380	//
	381	// TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
	382	//
	383	bool m_bOwnsDC:1;
	384
	385	//
	386	// our HDC
	387	//
	388	WXHDC m_hDC;
	389
	390	//
	391	// Store all old GDI objects when do a SelectObject, so we can select them
	392	// back in (this unselecting user's objects) so we can safely delete the
	393	// DC.
	394	//
	395	WXHBITMAP m_hOldBitmap;
	396	WXHPEN m_hOldPen;
	397	WXHBRUSH m_hOldBrush;
	398	WXHFONT m_hOldFont;
	399	WXHPALETTE m_hOldPalette;
	400
	401	#if wxUSE_DC_CACHEING
	402	static wxList m_svBitmapCache;
	403	static wxList m_svDCCache;
	404	#endif
	405	}; // end of CLASS wxDC
	406	#endif
	407	// _WX_DC_H_