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added missing WXDLLIMPEXP_CORE for wxGetDisplay() for wxGTK
[wxWidgets.git] / include / wx / os2 / dc.h
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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 8// Copyright: (c) David Webster
65571936 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"
0e320a79 16
fb46a9a6
DW		 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)
0e320a79 60
fb46a9a6
DW		 61// Relative
62#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
63#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
0e320a79 64
fb46a9a6 65#define YSCALE(y) (yorigin - (y))
0e320a79 66
fb46a9a6 67#define wx_round(a) (int)((a)+.5)
0e320a79 68
6835592c
DW		 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
76class wxDCCacheEntry : public wxObject
77{
78public:
79 wxDCCacheEntry( WXHBITMAP hBitmap
80 ,int nWidth
81 ,int nHeight
82 ,int nDepth
83 );
84 wxDCCacheEntry( HPS hPS
85 ,int nDepth
86 );
d3c7fc99 87 virtual ~wxDCCacheEntry();
6835592c
DW		 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
fb46a9a6 97class WXDLLEXPORT wxDC : public wxDCBase
54da4255 98{
fb46a9a6 99 DECLARE_DYNAMIC_CLASS(wxDC)
54da4255 100
fb46a9a6 101public:
d7e1a322 102 wxDC(void);
d3c7fc99 103 virtual ~wxDC();
fb46a9a6
DW		 104
105 // implement base class pure virtuals
106 // ----------------------------------
107
f6bcfd97
BP		 108 virtual void Clear(void);
109
110 virtual bool StartDoc(const wxString& rsMessage);
111 virtual void EndDoc(void);
112
113 virtual void StartPage(void);
114 virtual void EndPage(void);
115
116 virtual void SetFont(const wxFont& rFont);
117 virtual void SetPen(const wxPen& rPen);
118 virtual void SetBrush(const wxBrush& rBrush);
119 virtual void SetBackground(const wxBrush& rBrush);
120 virtual void SetBackgroundMode(int nMode);
121 virtual void SetPalette(const wxPalette& rPalette);
122
123 virtual void DestroyClippingRegion(void);
124
125 virtual wxCoord GetCharHeight(void) const;
126 virtual wxCoord GetCharWidth(void) const;
127 virtual void DoGetTextExtent( const wxString& rsString
128 ,wxCoord* pX
129 ,wxCoord* pY
130 ,wxCoord* pDescent = NULL
131 ,wxCoord* pExternalLeading = NULL
951f68d0 132 ,const wxFont* pTheFont = NULL
f6bcfd97
BP		 133 ) const;
134 virtual bool CanDrawBitmap(void) const;
135 virtual bool CanGetTextExtent(void) const;
136 virtual int GetDepth(void) const;
137 virtual wxSize GetPPI(void) const;
138
139 virtual void SetMapMode(int nMode);
140 virtual void SetUserScale( double dX
141 ,double dY
142 );
f6bcfd97
BP		 143 virtual void SetLogicalScale( double dX
144 ,double dY
145 );
146 virtual void SetLogicalOrigin( wxCoord vX
147 ,wxCoord vY
148 );
149 virtual void SetDeviceOrigin( wxCoord vX
150 ,wxCoord vY
151 );
152 virtual void SetAxisOrientation( bool bXLeftRight
153 ,bool bYBottomUp
154 );
155 virtual void SetLogicalFunction(int nFunction);
1408104d 156
fb46a9a6
DW		 157 // implementation from now on
158 // --------------------------
54da4255 159
f6bcfd97
BP		 160 virtual void SetRop(WXHDC hCdc);
161 virtual void SelectOldObjects(WXHDC hDc);
ce44c50e 162
f6bcfd97
BP		 163 wxWindow* GetWindow(void) const { return m_pCanvas; }
164 void SetWindow(wxWindow* pWin) { m_pCanvas = pWin; }
ce44c50e 165
f6bcfd97
BP		 166 WXHDC GetHDC(void) const { return m_hDC; }
167 void SetHDC( WXHDC hDc
168 ,bool bOwnsDC = FALSE
169 )
ce44c50e 170 {
f6bcfd97 171 m_hDC = hDc;
ce44c50e
DW		 172 m_bOwnsDC = bOwnsDC;
173 }
174
d8fcb5e8
DW		 175 HPS GetHPS(void) const { return m_hPS; }
176 void SetHPS(HPS hPS)
177 {
d8fcb5e8
DW		 178 m_hPS = hPS;
179 }
f6bcfd97
BP		 180 const wxBitmap& GetSelectedBitmap(void) const { return m_vSelectedBitmap; }
181 wxBitmap& GetSelectedBitmap(void) { return m_vSelectedBitmap; }
182
210a651b
DW		 183 void UpdateClipBox();
184
6835592c
DW		 185#if wxUSE_DC_CACHEING
186 static wxDCCacheEntry* FindBitmapInCache( HPS hPS
187 ,int nWidth
188 ,int nHeight
189 );
190 static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis
191 ,HPS hPS
192 );
193
194 static void AddToBitmapCache(wxDCCacheEntry* pEntry);
195 static void AddToDCCache(wxDCCacheEntry* pEntry);
196 static void ClearCache(void);
197#endif
198
1408104d 199protected:
1d0edc0f 200 virtual bool DoFloodFill( wxCoord vX
f6bcfd97
BP		 201 ,wxCoord vY
202 ,const wxColour& rCol
203 ,int nStyle = wxFLOOD_SURFACE
204 );
205
206 virtual bool DoGetPixel( wxCoord vX
207 ,wxCoord vY
208 ,wxColour* pCol
209 ) const;
210
211 virtual void DoDrawPoint( wxCoord vX
212 ,wxCoord vY
213 );
214 virtual void DoDrawLine( wxCoord vX1
215 ,wxCoord vY1
216 ,wxCoord vX2
217 ,wxCoord vY2
218 );
219
220 virtual void DoDrawArc( wxCoord vX1
221 ,wxCoord vY1
222 ,wxCoord vX2
223 ,wxCoord vY2
224 ,wxCoord vXc
225 ,wxCoord vYc
226 );
227 virtual void DoDrawCheckMark( wxCoord vX
228 ,wxCoord vY
229 ,wxCoord vWidth
230 ,wxCoord vHeight
231 );
232 virtual void DoDrawEllipticArc( wxCoord vX
233 ,wxCoord vY
234 ,wxCoord vW
235 ,wxCoord vH
236 ,double dSa
237 ,double dEa
238 );
239
240 virtual void DoDrawRectangle( wxCoord vX
241 ,wxCoord vY
242 ,wxCoord vWidth
243 ,wxCoord vHeight
244 );
245 virtual void DoDrawRoundedRectangle( wxCoord vX
246 ,wxCoord vY
247 ,wxCoord vWidth
248 ,wxCoord vHeight
249 ,double dRadius
250 );
251 virtual void DoDrawEllipse( wxCoord vX
252 ,wxCoord vY
253 ,wxCoord vWidth
254 ,wxCoord vHeight
255 );
256
257 virtual void DoCrossHair( wxCoord vX
258 ,wxCoord vY
259 );
260
261 virtual void DoDrawIcon( const wxIcon& rIcon
262 ,wxCoord vX
263 ,wxCoord vY
264 );
265 virtual void DoDrawBitmap( const wxBitmap& rBmp
266 ,wxCoord vX
267 ,wxCoord vY
268 ,bool bUseMask = FALSE
269 );
270
271 virtual void DoDrawText( const wxString& rsText
272 ,wxCoord vX
273 ,wxCoord vY
274 );
275 virtual void DoDrawRotatedText( const wxString& rsText
276 ,wxCoord vX
277 ,wxCoord vY
278 ,double dAngle
279 );
280
281 virtual bool DoBlit( wxCoord vXdest
282 ,wxCoord vYdest
283 ,wxCoord vWidth
284 ,wxCoord vHeight
285 ,wxDC* pSource
286 ,wxCoord vXsrc
287 ,wxCoord vYsrc
288 ,int nRop = wxCOPY
289 ,bool bUseMask = FALSE
6835592c
DW		 290 ,wxCoord vXsrcMask = -1
291 ,wxCoord vYsrcMask = -1
f6bcfd97
BP		 292 );
293
294 virtual void DoSetClippingRegionAsRegion(const wxRegion& rRegion);
295 virtual void DoSetClippingRegion( wxCoord vX
296 ,wxCoord vY
297 ,wxCoord vWidth
298 ,wxCoord vHeight
299 );
1408104d 300
f6bcfd97
BP		 301 virtual void DoGetSize( int* pWidth
302 ,int* pHeight
303 ) const;
304 virtual void DoGetSizeMM( int* pWidth
305 ,int* pHeight
306 ) const;
307
308 virtual void DoDrawLines( int n
309 ,wxPoint vaPoints[]
310 ,wxCoord vXoffset
311 ,wxCoord yYoffset
312 );
313 virtual void DoDrawPolygon( int n
314 ,wxPoint vaPoints[]
315 ,wxCoord vXoffset
316 ,wxCoord vYoffset
317 ,int nFillStyle = wxODDEVEN_RULE
318 );
fb46a9a6 319
938aa9c4
DW		 320#if wxUSE_PALETTE
321 void DoSelectPalette(bool bRealize = FALSE);
322 void InitializePalette(void);
323#endif // wxUSE_PALETTE
fb46a9a6 324
f6bcfd97
BP		 325 //
326 // common part of DoDrawText() and DoDrawRotatedText()
327 //
328 void DrawAnyText( const wxString& rsText
329 ,wxCoord vX
330 ,wxCoord vY
331 );
fb46a9a6 332
f6bcfd97
BP		 333 // OS2-specific member variables ?? do we even need this under OS/2?
334 int m_nWindowExtX;
335 int m_nWindowExtY;
1408104d 336
f6bcfd97
BP		 337 //
338 // the window associated with this DC (may be NULL)
339 //
340 wxWindow* m_pCanvas;
341 wxBitmap m_vSelectedBitmap;
1408104d 342
d7e1a322
DW		 343public:
344 // PM specific stuff
345 HPS m_hPS;
346 HPS m_hOldPS; // old hPS, if any
347 bool m_bIsPaintTime;// True at Paint Time
348
349 RECTL m_vRclPaint; // Bounding rectangle at Paint time etc.
f6bcfd97 350 //
fb46a9a6 351 // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
f6bcfd97
BP		 352 //
353 bool m_bOwnsDC:1;
fb46a9a6 354
f6bcfd97 355 //
ac7fb818 356 // our HDC
f6bcfd97
BP		 357 //
358 WXHDC m_hDC;
1408104d 359
f6bcfd97 360 //
1408104d
DW		 361 // Store all old GDI objects when do a SelectObject, so we can select them
362 // back in (this unselecting user's objects) so we can safely delete the
363 // DC.
f6bcfd97
BP		 364 //
365 WXHBITMAP m_hOldBitmap;
366 WXHPEN m_hOldPen;
367 WXHBRUSH m_hOldBrush;
368 WXHFONT m_hOldFont;
369 WXHPALETTE m_hOldPalette;
6835592c
DW		 370
371#if wxUSE_DC_CACHEING
372 static wxList m_svBitmapCache;
373 static wxList m_svDCCache;
374#endif
375}; // end of CLASS wxDC
0e320a79
DW		 376#endif
377 // _WX_DC_H_
wxWidgets (Impactor)