1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/include/qcanvas.h:1 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>qcanvas.h Include File</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
<a href="index.html">
<font color="#004faf">Home</font></a>
| <a href="classes.html">
<font color="#004faf">All Classes</font></a>
| <a href="mainclasses.html">
<font color="#004faf">Main Classes</font></a>
| <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
| <a href="groups.html">
<font color="#004faf">Grouped Classes</font></a>
| <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qcanvas.h</h1>
<p>This is the verbatim text of the qcanvas.h include file. It is provided only for illustration; the copyright remains with Trolltech.
<hr>
<pre>
/**********************************************************************
** $Id: qt/qcanvas.h 3.3.8 edited Jan 11 14:46 $
**
** Definition of QCanvas classes
**
** Created : 991211
**
** Copyright (C) 1999-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the canvas module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Alternatively you may (at your option) use any
** later version of the GNU General Public License if such license has
** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef QCANVAS_H
#define QCANVAS_H
#ifndef QT_H
#include "qscrollview.h"
#include "qpixmap.h"
#include "qptrlist.h"
#include "qbrush.h"
#include "qpen.h"
#include "qvaluelist.h"
#include "qpointarray.h"
#endif // QT_H
#if !defined( QT_MODULE_CANVAS ) || defined( QT_LICENSE_PROFESSIONAL ) || defined( QT_INTERNAL_CANVAS )
#define QM_EXPORT_CANVAS
#define QM_TEMPLATE_EXTERN_CANVAS
#else
#define QM_EXPORT_CANVAS Q_EXPORT
#define QM_TEMPLATE_EXTERN_CANVAS Q_TEMPLATE_EXTERN
#endif
#ifndef QT_NO_CANVAS
class QCanvasSprite;
class QCanvasPolygonalItem;
class QCanvasRectangle;
class QCanvasPolygon;
class QCanvasEllipse;
class QCanvasText;
class QCanvasLine;
class QCanvasChunk;
class QCanvas;
class QCanvasItem;
class QCanvasView;
class QCanvasPixmap;
#if defined(Q_TEMPLATEDLL) && ( !defined(Q_CC_BOR) || !defined(QT_MAKEDLL) || defined(Q_EXPORT_TEMPLATES) )
// MOC_SKIP_BEGIN
QM_TEMPLATE_EXTERN_CANVAS template class QM_EXPORT_CANVAS QValueListIterator< QCanvasItem* >;
QM_TEMPLATE_EXTERN_CANVAS template class QM_EXPORT_CANVAS QValueList< QCanvasItem* >;
// MOC_SKIP_END
#endif
class QM_EXPORT_CANVAS QCanvasItemList : public QValueList<QCanvasItem*> {
public:
void sort();
void drawUnique( QPainter& painter );
QCanvasItemList operator+(const QCanvasItemList &l) const;
};
class QCanvasItemExtra;
class QM_EXPORT_CANVAS QCanvasItem : public Qt
{
public:
QCanvasItem(QCanvas* canvas);
virtual ~QCanvasItem();
double x() const
{ return myx; }
double y() const
{ return myy; }
double z() const
{ return myz; } // (depth)
virtual void moveBy(double dx, double dy);
void move(double x, double y);
void setX(double a) { move(a,y()); }
void setY(double a) { move(x(),a); }
void setZ(double a) { myz=a; changeChunks(); }
bool animated() const;
virtual void setAnimated(bool y);
virtual void setVelocity( double vx, double vy);
void setXVelocity( double vx ) { setVelocity(vx,yVelocity()); }
void setYVelocity( double vy ) { setVelocity(xVelocity(),vy); }
double xVelocity() const;
double yVelocity() const;
virtual void advance(int stage);
virtual bool collidesWith( const QCanvasItem* ) const=0;
QCanvasItemList collisions(bool exact /* NO DEFAULT */ ) const;
virtual void setCanvas(QCanvas*);
virtual void draw(QPainter&)=0;
void show();
void hide();
virtual void setVisible(bool yes);
bool isVisible() const
{ return (bool)vis; }
virtual void setSelected(bool yes);
bool isSelected() const
{ return (bool)sel; }
virtual void setEnabled(bool yes);
bool isEnabled() const
{ return (bool)ena; }
virtual void setActive(bool yes);
bool isActive() const
{ return (bool)act; }
#ifndef QT_NO_COMPAT
bool visible() const
{ return (bool)vis; }
bool selected() const
{ return (bool)sel; }
bool enabled() const
{ return (bool)ena; }
bool active() const
{ return (bool)act; }
#endif
enum RttiValues {
Rtti_Item = 0,
Rtti_Sprite = 1,
Rtti_PolygonalItem = 2,
Rtti_Text = 3,
Rtti_Polygon = 4,
Rtti_Rectangle = 5,
Rtti_Ellipse = 6,
Rtti_Line = 7,
Rtti_Spline = 8
};
virtual int rtti() const;
static int RTTI;
virtual QRect boundingRect() const=0;
virtual QRect boundingRectAdvanced() const;
QCanvas* canvas() const
{ return cnv; }
protected:
void update() { changeChunks(); }
private:
// For friendly subclasses...
friend class QCanvasPolygonalItem;
friend class QCanvasSprite;
friend class QCanvasRectangle;
friend class QCanvasPolygon;
friend class QCanvasEllipse;
friend class QCanvasText;
friend class QCanvasLine;
virtual QPointArray chunks() const;
virtual void addToChunks();
virtual void removeFromChunks();
virtual void changeChunks();
virtual bool collidesWith( const QCanvasSprite*,
const QCanvasPolygonalItem*,
const QCanvasRectangle*,
const QCanvasEllipse*,
const QCanvasText* ) const = 0;
// End of friend stuff
QCanvas* cnv;
static QCanvas* current_canvas;
double myx,myy,myz;
QCanvasItemExtra *ext;
QCanvasItemExtra& extra();
uint ani:1;
uint vis:1;
uint val:1;
uint sel:1;
uint ena:1;
uint act:1;
};
class QCanvasData;
class QM_EXPORT_CANVAS QCanvas : public QObject
{
Q_OBJECT
public:
QCanvas( QObject* parent = 0, const char* name = 0 );
QCanvas(int w, int h);
QCanvas( QPixmap p, int h, int v, int tilewidth, int tileheight );
virtual ~QCanvas();
virtual void setTiles( QPixmap tiles, int h, int v,
int tilewidth, int tileheight );
virtual void setBackgroundPixmap( const QPixmap& p );
QPixmap backgroundPixmap() const;
virtual void setBackgroundColor( const QColor& c );
QColor backgroundColor() const;
virtual void setTile( int x, int y, int tilenum );
int tile( int x, int y ) const
{ return grid[x+y*htiles]; }
int tilesHorizontally() const
{ return htiles; }
int tilesVertically() const
{ return vtiles; }
int tileWidth() const
{ return tilew; }
int tileHeight() const
{ return tileh; }
virtual void resize(int width, int height);
int width() const
{ return awidth; }
int height() const
{ return aheight; }
QSize size() const
{ return QSize(awidth,aheight); }
QRect rect() const
{ return QRect( 0, 0, awidth, aheight ); }
bool onCanvas( int x, int y ) const
{ return x>=0 && y>=0 && x<awidth && y<aheight; }
bool onCanvas( const QPoint& p ) const
{ return onCanvas(p.x(),p.y()); }
bool validChunk( int x, int y ) const
{ return x>=0 && y>=0 && x<chwidth && y<chheight; }
bool validChunk( const QPoint& p ) const
{ return validChunk(p.x(),p.y()); }
int chunkSize() const
{ return chunksize; }
virtual void retune(int chunksize, int maxclusters=100);
bool sameChunk(int x1, int y1, int x2, int y2) const
{ return x1/chunksize==x2/chunksize && y1/chunksize==y2/chunksize; }
virtual void setChangedChunk(int i, int j);
virtual void setChangedChunkContaining(int x, int y);
virtual void setAllChanged();
virtual void setChanged(const QRect& area);
virtual void setUnchanged(const QRect& area);
// These call setChangedChunk.
void addItemToChunk(QCanvasItem*, int i, int j);
void removeItemFromChunk(QCanvasItem*, int i, int j);
void addItemToChunkContaining(QCanvasItem*, int x, int y);
void removeItemFromChunkContaining(QCanvasItem*, int x, int y);
QCanvasItemList allItems();
QCanvasItemList collisions( const QPoint&) const;
QCanvasItemList collisions( const QRect&) const;
QCanvasItemList collisions( const QPointArray& pa, const QCanvasItem* item,
bool exact) const;
void drawArea(const QRect&, QPainter* p, bool double_buffer=FALSE);
// These are for QCanvasView to call
virtual void addView(QCanvasView*);
virtual void removeView(QCanvasView*);
void drawCanvasArea(const QRect&, QPainter* p=0, bool double_buffer=TRUE);
void drawViewArea( QCanvasView* view, QPainter* p, const QRect& r, bool dbuf );
// These are for QCanvasItem to call
virtual void addItem(QCanvasItem*);
virtual void addAnimation(QCanvasItem*);
virtual void removeItem(QCanvasItem*);
virtual void removeAnimation(QCanvasItem*);
virtual void setAdvancePeriod(int ms);
virtual void setUpdatePeriod(int ms);
virtual void setDoubleBuffering(bool y);
signals:
void resized();
public slots:
virtual void advance();
virtual void update();
protected:
virtual void drawBackground(QPainter&, const QRect& area);
virtual void drawForeground(QPainter&, const QRect& area);
private:
void init(int w, int h, int chunksze=16, int maxclust=100);
QCanvasChunk& chunk(int i, int j) const;
QCanvasChunk& chunkContaining(int x, int y) const;
QRect changeBounds(const QRect& inarea);
void drawChanges(const QRect& inarea);
QPixmap offscr;
int awidth,aheight;
int chunksize;
int maxclusters;
int chwidth,chheight;
QCanvasChunk* chunks;
QCanvasData* d;
void initTiles(QPixmap p, int h, int v, int tilewidth, int tileheight);
ushort *grid;
ushort htiles;
ushort vtiles;
ushort tilew;
ushort tileh;
bool oneone;
QPixmap pm;
QTimer* update_timer;
QColor bgcolor;
bool debug_redraw_areas;
bool dblbuf;
friend void qt_unview(QCanvas* c);
#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
QCanvas( const QCanvas & );
QCanvas &operator=( const QCanvas & );
#endif
};
class QCanvasViewData;
class QM_EXPORT_CANVAS QCanvasView : public QScrollView
{
Q_OBJECT
public:
QCanvasView(QWidget* parent=0, const char* name=0, WFlags f=0);
QCanvasView(QCanvas* viewing, QWidget* parent=0, const char* name=0, WFlags f=0);
~QCanvasView();
QCanvas* canvas() const
{ return viewing; }
void setCanvas(QCanvas* v);
const QWMatrix &worldMatrix() const;
const QWMatrix &inverseWorldMatrix() const;
bool setWorldMatrix( const QWMatrix & );
protected:
void drawContents( QPainter*, int cx, int cy, int cw, int ch );
QSize sizeHint() const;
private:
void drawContents( QPainter* );
QCanvas* viewing;
QCanvasViewData* d;
friend void qt_unview(QCanvas* c);
private slots:
void cMoving(int,int);
void updateContentsSize();
private:
#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
QCanvasView( const QCanvasView & );
QCanvasView &operator=( const QCanvasView & );
#endif
};
class QM_EXPORT_CANVAS QCanvasPixmap : public QPixmap
{
public:
#ifndef QT_NO_IMAGEIO
QCanvasPixmap(const QString& datafilename);
#endif
QCanvasPixmap(const QImage& image);
QCanvasPixmap(const QPixmap&, const QPoint& hotspot);
~QCanvasPixmap();
int offsetX() const
{ return hotx; }
int offsetY() const
{ return hoty; }
void setOffset(int x, int y) { hotx = x; hoty = y; }
private:
#if defined(Q_DISABLE_COPY)
QCanvasPixmap( const QCanvasPixmap & );
QCanvasPixmap &operator=( const QCanvasPixmap & );
#endif
void init(const QImage&);
void init(const QPixmap& pixmap, int hx, int hy);
friend class QCanvasSprite;
friend class QCanvasPixmapArray;
friend bool qt_testCollision(const QCanvasSprite* s1, const QCanvasSprite* s2);
int hotx,hoty;
QImage* collision_mask;
};
class QM_EXPORT_CANVAS QCanvasPixmapArray
{
public:
QCanvasPixmapArray();
#ifndef QT_NO_IMAGEIO
QCanvasPixmapArray(const QString& datafilenamepattern, int framecount=0);
#endif
// this form is deprecated
QCanvasPixmapArray(QPtrList<QPixmap>, QPtrList<QPoint> hotspots);
QCanvasPixmapArray(QValueList<QPixmap>, QPointArray hotspots = QPointArray() );
~QCanvasPixmapArray();
#ifndef QT_NO_IMAGEIO
bool readPixmaps(const QString& datafilenamepattern, int framecount=0);
bool readCollisionMasks(const QString& filenamepattern);
#endif
// deprecated
bool operator!(); // Failure check.
bool isValid() const;
QCanvasPixmap* image(int i) const
{ return img ? img[i] : 0; }
void setImage(int i, QCanvasPixmap* p);
uint count() const
{ return (uint)framecount; }
private:
#if defined(Q_DISABLE_COPY)
QCanvasPixmapArray( const QCanvasPixmapArray & );
QCanvasPixmapArray &operator=( const QCanvasPixmapArray & );
#endif
#ifndef QT_NO_IMAGEIO
bool readPixmaps(const QString& datafilenamepattern, int framecount, bool maskonly);
#endif
void reset();
int framecount;
QCanvasPixmap** img;
};
class QM_EXPORT_CANVAS QCanvasSprite : public QCanvasItem
{
public:
QCanvasSprite(QCanvasPixmapArray* array, QCanvas* canvas);
void setSequence(QCanvasPixmapArray* seq);
virtual ~QCanvasSprite();
void move(double x, double y);
virtual void move(double x, double y, int frame);
void setFrame(int);
enum FrameAnimationType { Cycle, Oscillate };
virtual void setFrameAnimation(FrameAnimationType=Cycle, int step=1, int state=0);
int frame() const
{ return frm; }
int frameCount() const
{ return images->count(); }
int rtti() const;
static int RTTI;
bool collidesWith( const QCanvasItem* ) const;
QRect boundingRect() const;
// is there a reason for these to be protected? Lars
//protected:
int width() const;
int height() const;
int leftEdge() const;
int topEdge() const;
int rightEdge() const;
int bottomEdge() const;
int leftEdge(int nx) const;
int topEdge(int ny) const;
int rightEdge(int nx) const;
int bottomEdge(int ny) const;
QCanvasPixmap* image() const
{ return images->image(frm); }
virtual QCanvasPixmap* imageAdvanced() const;
QCanvasPixmap* image(int f) const
{ return images->image(f); }
virtual void advance(int stage);
public:
void draw(QPainter& painter);
private:
#if defined(Q_DISABLE_COPY)
QCanvasSprite( const QCanvasSprite & );
QCanvasSprite &operator=( const QCanvasSprite & );
#endif
void addToChunks();
void removeFromChunks();
void changeChunks();
int frm;
ushort anim_val;
uint anim_state:2;
uint anim_type:14;
bool collidesWith( const QCanvasSprite*,
const QCanvasPolygonalItem*,
const QCanvasRectangle*,
const QCanvasEllipse*,
const QCanvasText* ) const;
friend bool qt_testCollision( const QCanvasSprite* s1,
const QCanvasSprite* s2 );
QCanvasPixmapArray* images;
};
class QPolygonalProcessor;
class QM_EXPORT_CANVAS QCanvasPolygonalItem : public QCanvasItem
{
public:
QCanvasPolygonalItem(QCanvas* canvas);
virtual ~QCanvasPolygonalItem();
bool collidesWith( const QCanvasItem* ) const;
virtual void setPen(QPen p);
virtual void setBrush(QBrush b);
QPen pen() const
{ return pn; }
QBrush brush() const
{ return br; }
virtual QPointArray areaPoints() const=0;
virtual QPointArray areaPointsAdvanced() const;
QRect boundingRect() const;
int rtti() const;
static int RTTI;
protected:
void draw(QPainter &);
virtual void drawShape(QPainter &) = 0;
bool winding() const;
void setWinding(bool);
void invalidate();
bool isValid() const
{ return (bool)val; }
private:
void scanPolygon( const QPointArray& pa, int winding,
QPolygonalProcessor& process ) const;
QPointArray chunks() const;
bool collidesWith( const QCanvasSprite*,
const QCanvasPolygonalItem*,
const QCanvasRectangle*,
const QCanvasEllipse*,
const QCanvasText* ) const;
QBrush br;
QPen pn;
uint wind:1;
};
class QM_EXPORT_CANVAS QCanvasRectangle : public QCanvasPolygonalItem
{
public:
QCanvasRectangle(QCanvas* canvas);
QCanvasRectangle(const QRect&, QCanvas* canvas);
QCanvasRectangle(int x, int y, int width, int height, QCanvas* canvas);
~QCanvasRectangle();
int width() const;
int height() const;
void setSize(int w, int h);
QSize size() const
{ return QSize(w,h); }
QPointArray areaPoints() const;
QRect rect() const
{ return QRect(int(x()),int(y()),w,h); }
bool collidesWith( const QCanvasItem* ) const;
int rtti() const;
static int RTTI;
protected:
void drawShape(QPainter &);
QPointArray chunks() const;
private:
bool collidesWith( const QCanvasSprite*,
const QCanvasPolygonalItem*,
const QCanvasRectangle*,
const QCanvasEllipse*,
const QCanvasText* ) const;
int w, h;
};
class QM_EXPORT_CANVAS QCanvasPolygon : public QCanvasPolygonalItem
{
public:
QCanvasPolygon(QCanvas* canvas);
~QCanvasPolygon();
void setPoints(QPointArray);
QPointArray points() const;
void moveBy(double dx, double dy);
QPointArray areaPoints() const;
int rtti() const;
static int RTTI;
protected:
void drawShape(QPainter &);
QPointArray poly;
};
class QM_EXPORT_CANVAS QCanvasSpline : public QCanvasPolygon
{
public:
QCanvasSpline(QCanvas* canvas);
~QCanvasSpline();
void setControlPoints(QPointArray, bool closed=TRUE);
QPointArray controlPoints() const;
bool closed() const;
int rtti() const;
static int RTTI;
private:
void recalcPoly();
QPointArray bez;
bool cl;
};
class QM_EXPORT_CANVAS QCanvasLine : public QCanvasPolygonalItem
{
public:
QCanvasLine(QCanvas* canvas);
~QCanvasLine();
void setPoints(int x1, int y1, int x2, int y2);
QPoint startPoint() const
{ return QPoint(x1,y1); }
QPoint endPoint() const
{ return QPoint(x2,y2); }
int rtti() const;
static int RTTI;
void setPen(QPen p);
void moveBy(double dx, double dy);
protected:
void drawShape(QPainter &);
QPointArray areaPoints() const;
private:
int x1,y1,x2,y2;
};
class QM_EXPORT_CANVAS QCanvasEllipse : public QCanvasPolygonalItem
{
public:
QCanvasEllipse( QCanvas* canvas );
QCanvasEllipse( int width, int height, QCanvas* canvas );
QCanvasEllipse( int width, int height, int startangle, int angle,
QCanvas* canvas );
~QCanvasEllipse();
int width() const;
int height() const;
void setSize(int w, int h);
void setAngles(int start, int length);
int angleStart() const
{ return a1; }
int angleLength() const
{ return a2; }
QPointArray areaPoints() const;
bool collidesWith( const QCanvasItem* ) const;
int rtti() const;
static int RTTI;
protected:
void drawShape(QPainter &);
private:
bool collidesWith( const QCanvasSprite*,
const QCanvasPolygonalItem*,
const QCanvasRectangle*,
const QCanvasEllipse*,
const QCanvasText* ) const;
int w, h;
int a1, a2;
};
class QCanvasTextExtra;
class QM_EXPORT_CANVAS QCanvasText : public QCanvasItem
{
public:
QCanvasText(QCanvas* canvas);
QCanvasText(const QString&, QCanvas* canvas);
QCanvasText(const QString&, QFont, QCanvas* canvas);
virtual ~QCanvasText();
void setText( const QString& );
void setFont( const QFont& );
void setColor( const QColor& );
QString text() const;
QFont font() const;
QColor color() const;
void moveBy(double dx, double dy);
int textFlags() const
{ return flags; }
void setTextFlags(int);
QRect boundingRect() const;
bool collidesWith( const QCanvasItem* ) const;
int rtti() const;
static int RTTI;
protected:
virtual void draw(QPainter&);
private:
#if defined(Q_DISABLE_COPY)
QCanvasText( const QCanvasText & );
QCanvasText &operator=( const QCanvasText & );
#endif
void addToChunks();
void removeFromChunks();
void changeChunks();
void setRect();
QRect brect;
QString txt;
int flags;
QFont fnt;
QColor col;
QCanvasTextExtra* extra;
bool collidesWith( const QCanvasSprite*,
const QCanvasPolygonalItem*,
const QCanvasRectangle*,
const QCanvasEllipse*,
const QCanvasText* ) const;
};
#define Q_DEFINED_QCANVAS
#include "qwinexport.h"
#endif // QT_NO_CANVAS
#endif // QCANVAS_H
</pre>
<!-- eof -->
<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright © 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt 3.3.8</div>
</table></div></address></body>
</html>
|
