source: trunk/include/qpaintdevice.h@ 138

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1/****************************************************************************
2** $Id: qpaintdevice.h 8 2005-11-16 19:36:46Z dmik $
3**
4** Definition of QPaintDevice class
5**
6** Created : 940721
7**
8** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
9**
10** This file is part of the kernel module of the Qt GUI Toolkit.
11**
12** This file may be distributed under the terms of the Q Public License
13** as defined by Trolltech AS of Norway and appearing in the file
14** LICENSE.QPL included in the packaging of this file.
15**
16** This file may be distributed and/or modified under the terms of the
17** GNU General Public License version 2 as published by the Free Software
18** Foundation and appearing in the file LICENSE.GPL included in the
19** packaging of this file.
20**
21** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
22** licenses may use this file in accordance with the Qt Commercial License
23** Agreement provided with the Software.
24**
25** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
26** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
27**
28** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
29** information about Qt Commercial License Agreements.
30** See http://www.trolltech.com/qpl/ for QPL licensing information.
31** See http://www.trolltech.com/gpl/ for GPL licensing information.
32**
33** Contact info@trolltech.com if any conditions of this licensing are
34** not clear to you.
35**
36**********************************************************************/
37
38#ifndef QPAINTDEVICE_H
39#define QPAINTDEVICE_H
40
41#ifndef QT_H
42#include "qwindowdefs.h"
43#include "qrect.h"
44#endif // QT_H
45
46#if defined(Q_WS_QWS)
47class QWSDisplay;
48class QGfx;
49#endif
50
51class QIODevice;
52class QString;
53class QTextItem;
54
55
56#if defined(Q_WS_X11)
57struct QPaintDeviceX11Data;
58#endif
59
60union QPDevCmdParam {
61 int ival;
62 int *ivec;
63 QString *str;
64 const QPoint *point;
65 const QRect *rect;
66 const QPointArray *ptarr;
67 const QPixmap *pixmap;
68 const QImage *image;
69 const QColor *color;
70 const QFont *font;
71 const QPen *pen;
72 const QBrush *brush;
73 const QRegion *rgn;
74 const QWMatrix *matrix;
75 const QTextItem *textItem;
76 QIODevice *device;
77};
78
79
80
81class Q_EXPORT QPaintDevice // device for QPainter
82{
83public:
84 virtual ~QPaintDevice();
85
86 int devType() const;
87 bool isExtDev() const;
88 bool paintingActive() const;
89
90 virtual void setResolution( int );
91 virtual int resolution() const;
92
93 // Windows: get device context
94 // X-Windows: get drawable
95#if defined(Q_WS_WIN)
96 virtual HDC handle() const;
97#elif defined(Q_WS_PM)
98 virtual HPS handle() const;
99#elif defined(Q_WS_X11)
100 virtual Qt::HANDLE handle() const;
101 virtual Qt::HANDLE x11RenderHandle() const;
102#elif defined(Q_WS_MAC)
103 virtual Qt::HANDLE handle() const;
104#elif defined(Q_WS_QWS)
105 virtual Qt::HANDLE handle() const;
106#endif
107
108#if defined(Q_WS_X11)
109 Display *x11Display() const;
110 int x11Screen() const;
111 int x11Depth() const;
112 int x11Cells() const;
113 Qt::HANDLE x11Colormap() const;
114 bool x11DefaultColormap() const;
115 void *x11Visual() const;
116 bool x11DefaultVisual() const;
117
118 static Display *x11AppDisplay();
119 static int x11AppScreen();
120
121 static int x11AppDpiX();
122 static int x11AppDpiY();
123 static void x11SetAppDpiX(int);
124 static void x11SetAppDpiY(int);
125 static int x11AppDepth();
126 static int x11AppCells();
127 static Qt::HANDLE x11AppRootWindow();
128 static Qt::HANDLE x11AppColormap();
129 static bool x11AppDefaultColormap();
130 static void *x11AppVisual();
131 static bool x11AppDefaultVisual();
132
133 // ### in 4.0, the above need to go away, the below needs to take a -1 default
134 // argument, signifying the default screen...
135 static int x11AppDepth( int screen );
136 static int x11AppCells( int screen );
137 static Qt::HANDLE x11AppRootWindow( int screen );
138 static Qt::HANDLE x11AppColormap( int screen );
139 static void *x11AppVisual( int screen );
140 static bool x11AppDefaultColormap( int screen );
141 static bool x11AppDefaultVisual( int screen );
142 static int x11AppDpiX( int );
143 static int x11AppDpiY( int );
144 static void x11SetAppDpiX( int, int );
145 static void x11SetAppDpiY( int, int );
146#endif
147
148#if defined(Q_WS_QWS)
149 static QWSDisplay *qwsDisplay();
150 virtual unsigned char * scanLine(int) const;
151 virtual int bytesPerLine() const;
152 virtual QGfx * graphicsContext(bool clip_children=TRUE) const;
153#endif
154
155 enum PDevCmd {
156 PdcNOP = 0, // <void>
157 PdcDrawPoint = 1, // point
158 PdcDrawFirst = PdcDrawPoint,
159 PdcMoveTo = 2, // point
160 PdcLineTo = 3, // point
161 PdcDrawLine = 4, // point,point
162 PdcDrawRect = 5, // rect
163 PdcDrawRoundRect = 6, // rect,ival,ival
164 PdcDrawEllipse = 7, // rect
165 PdcDrawArc = 8, // rect,ival,ival
166 PdcDrawPie = 9, // rect,ival,ival
167 PdcDrawChord = 10, // rect,ival,ival
168 PdcDrawLineSegments = 11, // ptarr
169 PdcDrawPolyline = 12, // ptarr
170 PdcDrawPolygon = 13, // ptarr,ival
171 PdcDrawCubicBezier = 14, // ptarr
172 PdcDrawText = 15, // point,str
173 PdcDrawTextFormatted = 16, // rect,ival,str
174 PdcDrawPixmap = 17, // rect,pixmap
175 PdcDrawImage = 18, // rect,image
176 PdcDrawText2 = 19, // point,str
177 PdcDrawText2Formatted = 20, // rect,ival,str
178 PdcDrawTextItem = 21,
179 PdcDrawLast = PdcDrawTextItem,
180
181 // no painting commands below PdcDrawLast.
182
183 PdcBegin = 30, // <void>
184 PdcEnd = 31, // <void>
185 PdcSave = 32, // <void>
186 PdcRestore = 33, // <void>
187 PdcSetdev = 34, // device - PRIVATE
188 PdcSetBkColor = 40, // color
189 PdcSetBkMode = 41, // ival
190 PdcSetROP = 42, // ival
191 PdcSetBrushOrigin = 43, // point
192 PdcSetFont = 45, // font
193 PdcSetPen = 46, // pen
194 PdcSetBrush = 47, // brush
195 PdcSetTabStops = 48, // ival
196 PdcSetTabArray = 49, // ival,ivec
197 PdcSetUnit = 50, // ival
198 PdcSetVXform = 51, // ival
199 PdcSetWindow = 52, // rect
200 PdcSetViewport = 53, // rect
201 PdcSetWXform = 54, // ival
202 PdcSetWMatrix = 55, // matrix,ival
203 PdcSaveWMatrix = 56,
204 PdcRestoreWMatrix = 57,
205 PdcSetClip = 60, // ival
206 PdcSetClipRegion = 61, // rgn
207
208 PdcReservedStart = 0, // codes 0-199 are reserved
209 PdcReservedStop = 199 // for Qt
210 };
211
212protected:
213 QPaintDevice( uint devflags );
214
215#if defined(Q_WS_WIN)
216 HDC hdc; // device context
217#elif defined(Q_WS_PM)
218 HPS hps; // presentation space handle
219#elif defined(Q_WS_X11)
220 Qt::HANDLE hd; // handle to drawable
221 Qt::HANDLE rendhd; // handle to RENDER pict
222
223 void copyX11Data( const QPaintDevice * );
224 void cloneX11Data( const QPaintDevice * );
225 virtual void setX11Data( const QPaintDeviceX11Data* );
226 QPaintDeviceX11Data* getX11Data( bool def=FALSE ) const;
227#elif defined(Q_WS_MAC)
228#if !defined( QMAC_NO_QUARTZ )
229 CGContextRef ctx;
230#endif
231 void * hd;
232#elif defined(Q_WS_QWS)
233 Qt::HANDLE hd;
234#endif
235
236 virtual bool cmd( int, QPainter *, QPDevCmdParam * );
237 virtual int metric( int ) const;
238 virtual int fontMet( QFont *, int, const char * = 0, int = 0 ) const;
239 virtual int fontInf( QFont *, int ) const;
240
241 ushort devFlags; // device flags
242 ushort painters; // refcount
243
244 friend class QPainter;
245 friend class QPaintDeviceMetrics;
246#if defined(Q_WS_MAC)
247#ifndef QMAC_NO_QUARTZ
248 virtual CGContextRef macCGContext(bool clipped=TRUE) const;
249#endif
250 friend Q_EXPORT void unclippedScaledBitBlt( QPaintDevice *, int, int, int, int,
251 const QPaintDevice *, int, int, int, int, Qt::RasterOp, bool, bool );
252#else
253 friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
254 const QPaintDevice *,
255 int, int, int, int, Qt::RasterOp, bool );
256#endif
257#if defined(Q_WS_X11)
258 friend void qt_init_internal( int *, char **, Display *, Qt::HANDLE, Qt::HANDLE );
259 friend void qt_cleanup();
260#endif
261
262private:
263#if defined(Q_WS_X11)
264 static Display *x_appdisplay;
265 static int x_appscreen;
266
267 static int x_appdepth;
268 static int x_appcells;
269 static Qt::HANDLE x_approotwindow;
270 static Qt::HANDLE x_appcolormap;
271 static bool x_appdefcolormap;
272 static void *x_appvisual;
273 static bool x_appdefvisual;
274
275 // ### in 4.0, remove the above, and replace with the below
276 static int *x_appdepth_arr;
277 static int *x_appcells_arr;
278 static Qt::HANDLE *x_approotwindow_arr;
279 static Qt::HANDLE *x_appcolormap_arr;
280 static bool *x_appdefcolormap_arr;
281 static void **x_appvisual_arr;
282 static bool *x_appdefvisual_arr;
283
284 QPaintDeviceX11Data* x11Data;
285#endif
286
287private: // Disabled copy constructor and operator=
288#if defined(Q_DISABLE_COPY)
289 QPaintDevice( const QPaintDevice & );
290 QPaintDevice &operator=( const QPaintDevice & );
291#endif
292};
293
294
295Q_EXPORT
296void bitBlt( QPaintDevice *dst, int dx, int dy,
297 const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
298 Qt::RasterOp = Qt::CopyROP, bool ignoreMask=FALSE );
299
300Q_EXPORT
301void bitBlt( QPaintDevice *dst, int dx, int dy,
302 const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
303 int conversion_flags=0 );
304
305
306#if defined(Q_WS_X11)
307
308struct Q_EXPORT QPaintDeviceX11Data : public QShared {
309 Display* x_display;
310 int x_screen;
311 int x_depth;
312 int x_cells;
313 Qt::HANDLE x_colormap;
314 bool x_defcolormap;
315 void* x_visual;
316 bool x_defvisual;
317};
318
319#endif
320
321/*****************************************************************************
322 Inline functions
323 *****************************************************************************/
324
325inline int QPaintDevice::devType() const
326{ return devFlags & QInternal::DeviceTypeMask; }
327
328inline bool QPaintDevice::isExtDev() const
329{ return (devFlags & QInternal::ExternalDevice) != 0; }
330
331inline bool QPaintDevice::paintingActive() const
332{ return painters != 0; }
333
334#if defined(Q_WS_X11)
335inline Display *QPaintDevice::x11Display() const
336{ return x11Data ? x11Data->x_display : x_appdisplay; }
337
338inline int QPaintDevice::x11Screen() const
339{ return x11Data ? x11Data->x_screen : x_appscreen; }
340
341inline int QPaintDevice::x11Depth() const
342{ return x11Data ? x11Data->x_depth : x_appdepth; }
343
344inline int QPaintDevice::x11Cells() const
345{ return x11Data ? x11Data->x_cells : x_appcells; }
346
347inline Qt::HANDLE QPaintDevice::x11Colormap() const
348{ return x11Data ? x11Data->x_colormap : x_appcolormap; }
349
350inline bool QPaintDevice::x11DefaultColormap() const
351{ return x11Data ? x11Data->x_defcolormap : x_appdefcolormap; }
352
353inline void *QPaintDevice::x11Visual() const
354{ return x11Data ? x11Data->x_visual : x_appvisual; }
355
356inline bool QPaintDevice::x11DefaultVisual() const
357{ return x11Data ? x11Data->x_defvisual : x_appdefvisual; }
358
359inline Display *QPaintDevice::x11AppDisplay()
360{ return x_appdisplay; }
361
362inline int QPaintDevice::x11AppScreen()
363{ return x_appscreen; }
364
365inline int QPaintDevice::x11AppDepth( int screen )
366{ return x_appdepth_arr[ screen == -1 ? x_appscreen : screen ]; }
367
368inline int QPaintDevice::x11AppCells( int screen )
369{ return x_appcells_arr[ screen == -1 ? x_appscreen : screen ]; }
370
371inline Qt::HANDLE QPaintDevice::x11AppRootWindow( int screen )
372{ return x_approotwindow_arr[ screen == -1 ? x_appscreen : screen ]; }
373
374inline Qt::HANDLE QPaintDevice::x11AppColormap( int screen )
375{ return x_appcolormap_arr[ screen == -1 ? x_appscreen : screen ]; }
376
377inline bool QPaintDevice::x11AppDefaultColormap( int screen )
378{ return x_appdefcolormap_arr[ screen == -1 ? x_appscreen : screen ]; }
379
380inline void *QPaintDevice::x11AppVisual( int screen )
381{ return x_appvisual_arr[ screen == -1 ? x_appscreen : screen ]; }
382
383inline bool QPaintDevice::x11AppDefaultVisual( int screen )
384{ return x_appdefvisual_arr[ screen == -1 ? x_appscreen : screen ]; }
385
386inline int QPaintDevice::x11AppDepth()
387{ return x_appdepth; }
388
389inline int QPaintDevice::x11AppCells()
390{ return x_appcells; }
391
392inline Qt::HANDLE QPaintDevice::x11AppRootWindow()
393{ return x_approotwindow; }
394
395inline Qt::HANDLE QPaintDevice::x11AppColormap()
396{ return x_appcolormap; }
397
398inline bool QPaintDevice::x11AppDefaultColormap()
399{ return x_appdefcolormap; }
400
401inline void *QPaintDevice::x11AppVisual()
402{ return x_appvisual; }
403
404inline bool QPaintDevice::x11AppDefaultVisual()
405{ return x_appdefvisual; }
406
407#endif // Q_WS_X11
408
409
410Q_EXPORT
411inline void bitBlt( QPaintDevice *dst, const QPoint &dp,
412 const QPaintDevice *src, const QRect &sr =QRect(0,0,-1,-1),
413 Qt::RasterOp rop=Qt::CopyROP, bool ignoreMask=FALSE )
414{
415 bitBlt( dst, dp.x(), dp.y(), src, sr.x(), sr.y(), sr.width(), sr.height(),
416 rop, ignoreMask );
417}
418
419
420
421
422#endif // QPAINTDEVICE_H
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