summaryrefslogtreecommitdiffstats
path: root/src/svg/qsvgstyle_p.h
blob: ff4058b265c3f994aecca7e38235b9be5dacd4b4 (plain)
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
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtSvg module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QSVGSTYLE_P_H
#define QSVGSTYLE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "QtGui/qpainter.h"

#ifndef QT_NO_SVG

#include "QtGui/qpen.h"
#include "QtGui/qbrush.h"
#include "QtGui/qmatrix.h"
#include "QtGui/qcolor.h"
#include "QtGui/qfont.h"
#include <qdebug.h>

QT_BEGIN_NAMESPACE

class QPainter;
class QSvgNode;
class QSvgFont;
class QSvgTinyDocument;

template <class T> class QSvgRefCounter
{
public:
    QSvgRefCounter() { t = 0; }
    QSvgRefCounter(T *_t)
    {
        t = _t;
        if (t)
            t->ref();
    }
    QSvgRefCounter(const QSvgRefCounter &other)
    {
        t = other.t;
        if (t)
            t->ref();
    }
    QSvgRefCounter &operator =(T *_t)
    {
        if(_t)
            _t->ref();
        if (t)
            t->deref();
        t = _t;
        return *this;
    }
    QSvgRefCounter &operator =(const QSvgRefCounter &other)
    {
        if(other.t)
            other.t->ref();
        if (t)
            t->deref();
        t = other.t;
        return *this;
    }
    ~QSvgRefCounter()
    {
        if (t)
            t->deref();
    }

    inline T *operator->() const { return t; }
    inline operator T*() const { return t; }

private:
    T *t;
};

class QSvgRefCounted
{
public:
    QSvgRefCounted() { _ref = 0; }
    virtual ~QSvgRefCounted() {}
    void ref() {
        ++_ref;
//        qDebug() << this << ": adding ref, now " << _ref;
    }
    void deref() {
//        qDebug() << this << ": removing ref, now " << _ref;
        if(!--_ref) {
//            qDebug("     deleting");
            delete this;
        }
    }
private:
    int _ref;
};

struct QSvgExtraStates
{
    QSvgExtraStates();
    qreal fillOpacity;
};

class QSvgStyleProperty : public QSvgRefCounted
{
public:
    enum Type
    {
        QUALITY,
        FILL,
        VIEWPORT_FILL,
        FONT,
        STROKE,
        SOLID_COLOR,
        GRADIENT,
        TRANSFORM,
        ANIMATE_TRANSFORM,
        ANIMATE_COLOR,
        OPACITY,
        COMP_OP
    };
public:
    virtual ~QSvgStyleProperty();
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states)  =0;
    virtual void revert(QPainter *p, QSvgExtraStates &states) =0;
    virtual Type type() const=0;
};

class QSvgQualityStyle : public QSvgStyleProperty
{
public:
    QSvgQualityStyle(int color);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
private:
    // color-render ing v 	v 	'auto' | 'optimizeSpeed' |
    //                                  'optimizeQuality' | 'inherit'
    int m_colorRendering;

    // shape-rendering v 	v 	'auto' | 'optimizeSpeed' | 'crispEdges' |
    //                                  'geometricPrecision' | 'inherit'
    //QSvgShapeRendering m_shapeRendering;


    // text-rendering    v 	v 	'auto' | 'optimizeSpeed' | 'optimizeLegibility'
    //                                | 'geometricPrecision' | 'inherit'
    //QSvgTextRendering m_textRendering;


    // vector-effect         v 	x 	'default' | 'non-scaling-stroke' | 'inherit'
    //QSvgVectorEffect m_vectorEffect;

    // image-rendering v 	v 	'auto' | 'optimizeSpeed' | 'optimizeQuality' |
    //                                      'inherit'
    //QSvgImageRendering m_imageRendering;
};



class QSvgOpacityStyle : public QSvgStyleProperty
{
public:
    QSvgOpacityStyle(qreal opacity);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
private:
    qreal m_opacity;
    qreal m_oldOpacity;
};

class QSvgFillStyle : public QSvgStyleProperty
{
public:
    QSvgFillStyle(const QBrush &brush);
    QSvgFillStyle(QSvgStyleProperty *style);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    void setFillRule(Qt::FillRule f);
    void setFillOpacity(qreal opacity);

    const QBrush & qbrush() const
    {
        return m_fill;
    }
private:
    // fill            v 	v 	'inherit' | <Paint.datatype>
    // fill-opacity    v 	v 	'inherit' | <OpacityValue.datatype>
    QBrush m_fill;
    QBrush m_oldFill;
    QSvgStyleProperty *m_style;

    bool         m_fillRuleSet;
    Qt::FillRule m_fillRule;
    bool m_fillOpacitySet;
    qreal m_fillOpacity;
    qreal m_oldOpacity;
};

class QSvgViewportFillStyle : public QSvgStyleProperty
{
public:
    QSvgViewportFillStyle(const QBrush &brush);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    const QBrush & qbrush() const
    {
        return m_viewportFill;
    }
private:
    // viewport-fill         v 	x 	'inherit' | <Paint.datatype>
    // viewport-fill-opacity 	v 	x 	'inherit' | <OpacityValue.datatype>
    QBrush m_viewportFill;

    QBrush m_oldFill;
};

class QSvgFontStyle : public QSvgStyleProperty
{
public:
    QSvgFontStyle(QSvgFont *font, QSvgTinyDocument *doc);
    QSvgFontStyle(const QFont &font, QSvgTinyDocument *doc);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    void setPointSize(qreal size);
    qreal pointSize() const;

    //### hack to avoid having a separate style element for text-anchor
    QString textAnchor() const;
    void setTextAnchor(const QString &anchor);

    QSvgFont * svgFont() const
    {
        return m_font;
    }
    QSvgTinyDocument *doc() const
    {
        return m_doc;
    }

    const QFont & qfont() const
    {
        return m_qfont;
    }
private:
    QSvgFont *m_font;
    qreal     m_pointSize;
    QSvgTinyDocument *m_doc;

    QString m_textAnchor;

    QFont m_qfont;
    QFont m_oldFont;
};

class QSvgStrokeStyle : public QSvgStyleProperty
{
public:
    QSvgStrokeStyle(const QPen &pen);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    const QPen & qpen() const
    {
        return m_stroke;
    }
private:
    // stroke            v 	v 	'inherit' | <Paint.datatype>
    // stroke-dasharray  v 	v 	'inherit' | <StrokeDashArrayValue.datatype>
    // stroke-dashoffset v 	v 	'inherit' | <StrokeDashOffsetValue.datatype>
    // stroke-linecap    v 	v 	'butt' | 'round' | 'square' | 'inherit'
    // stroke-linejoin   v 	v 	'miter' | 'round' | 'bevel' | 'inherit'
    // stroke-miterlimit v 	v 	'inherit' | <StrokeMiterLimitValue.datatype>
    // stroke-opacity    v 	v 	'inherit' | <OpacityValue.datatype>
    // stroke-width      v 	v 	'inherit' | <StrokeWidthValue.datatype>
    QPen m_stroke;

    QPen m_oldStroke;
};


class QSvgSolidColorStyle : public QSvgStyleProperty
{
public:
    QSvgSolidColorStyle(const QColor &color);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    const QColor & qcolor() const
    {
        return m_solidColor;
    }
private:
    // solid-color       v 	x 	'inherit' | <SVGColor.datatype>
    // solid-opacity     v 	x 	'inherit' | <OpacityValue.datatype>
    QColor m_solidColor;

    QBrush m_oldFill;
    QPen   m_oldStroke;
};

class QSvgGradientStyle : public QSvgStyleProperty
{
public:
    QSvgGradientStyle(QGradient *grad);
    ~QSvgGradientStyle() { delete m_gradient; }
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    void setStopLink(const QString &link, QSvgTinyDocument *doc);
    QString stopLink() const { return m_link; }
    void resolveStops();

    void setMatrix(const QMatrix &matrix);
    QMatrix  qmatrix() const
    {
        return m_matrix;
    }

    QGradient *qgradient() const
    {
        return m_gradient;
    }

    void addResolve(qreal offset);
private:
    QGradient      *m_gradient;
    QList<qreal>  m_resolvePoints;

    QBrush m_oldFill;

    QMatrix m_matrix;

    QSvgTinyDocument *m_doc;
    QString           m_link;
};

class QSvgTransformStyle : public QSvgStyleProperty
{
public:
    QSvgTransformStyle(const QTransform &transform);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    const QTransform & qtransform() const
    {
        return m_transform;
    }
private:
    //7.6 The transform  attribute
    QTransform m_transform;
    QTransform m_oldWorldTransform;
};


class QSvgAnimateTransform : public QSvgStyleProperty
{
public:
    enum TransformType
    {
        Empty,
        Translate,
        Scale,
        Rotate,
        SkewX,
        SkewY
    };
public:
    QSvgAnimateTransform(int startMs, int endMs, int by = 0);
    void setArgs(TransformType type, const QVector<qreal> &args);
    void setFreeze(bool freeze);
    void setRepeatCount(qreal repeatCount);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
protected:
    void resolveMatrix(QSvgNode *node);
private:
    qreal m_from, m_to, m_by;
    qreal m_totalRunningTime;
    TransformType m_type;
    QVector<qreal> m_args;
    int m_count;
    QTransform m_transform;
    QTransform m_oldWorldTransform;
    bool m_finished;
    bool m_freeze;
    qreal m_repeatCount;
};


class QSvgAnimateColor : public QSvgStyleProperty
{
public:
    QSvgAnimateColor(int startMs, int endMs, int by = 0);
    void setArgs(bool fill, const QList<QColor> &colors);
    void setFreeze(bool freeze);
    void setRepeatCount(qreal repeatCount);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
private:
    qreal m_from, m_to, m_by;
    qreal m_totalRunningTime;
    QList<QColor> m_colors;
    QBrush m_oldBrush;
    QPen   m_oldPen;
    bool m_fill;
    bool m_finished;
    bool m_freeze;
    qreal m_repeatCount;
};


class QSvgCompOpStyle : public QSvgStyleProperty
{
public:
    QSvgCompOpStyle(QPainter::CompositionMode mode);
    virtual void apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &states);
    virtual void revert(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;

    const QPainter::CompositionMode & compOp() const
    {
        return m_mode;
    }
private:
    //comp-op attribute
    QPainter::CompositionMode m_mode;

    QPainter::CompositionMode m_oldMode;
};


class QSvgStyle
{
public:
    QSvgStyle()
        : quality(0),
          fill(0),
          viewportFill(0),
          font(0),
          stroke(0),
          solidColor(0),
          gradient(0),
          transform(0),
          animateColor(0),
          opacity(0),
          compop(0)
    {}
    ~QSvgStyle();

    void apply(QPainter *p, const QRectF &rect, QSvgNode *node, QSvgExtraStates &states);
    void revert(QPainter *p, QSvgExtraStates &states);
    QSvgRefCounter<QSvgQualityStyle>      quality;
    QSvgRefCounter<QSvgFillStyle>         fill;
    QSvgRefCounter<QSvgViewportFillStyle> viewportFill;
    QSvgRefCounter<QSvgFontStyle>         font;
    QSvgRefCounter<QSvgStrokeStyle>       stroke;
    QSvgRefCounter<QSvgSolidColorStyle>   solidColor;
    QSvgRefCounter<QSvgGradientStyle>     gradient;
    QSvgRefCounter<QSvgTransformStyle>    transform;
    QSvgRefCounter<QSvgAnimateColor>      animateColor;
    QList<QSvgRefCounter<QSvgAnimateTransform> >   animateTransforms;
    QSvgRefCounter<QSvgOpacityStyle>      opacity;
    QSvgRefCounter<QSvgCompOpStyle>       compop;
};

/********************************************************/
// NOT implemented:

// color           v 	v 	'inherit' | <Color.datatype>
//QColor m_color;

// display         v 	x 	'inline' | 'block' | 'list-item'
//                                 | 'run-in' | 'compact' | 'marker' |
//                                 'table' | 'inline-table' |
//                                 'table-row-group' | 'table-header-group' |
//                                 'table-footer-group' | 'table-row' |
//                                 'table-column-group' | 'table-column' |
//                                 'table-cell' | 'table-caption' |
//                                 'none' | 'inherit'
//QSvgDisplayStyle m_display;

// display-align   v 	v 	'auto' | 'before' | 'center' | 'after' | 'inherit'
//QSvgDisplayAlign m_displayAlign;

// line-increment  v 	v 	'auto' | 'inherit' | <Number.datatype>
//int m_lineIncrement;

// text-anchor       v 	v 	'start' | 'middle' | 'end' | 'inherit'
//QSvgTextAnchor m_textAnchor;

// visibility 	v 	v 	'visible' | 'hidden' | 'inherit'
//QSvgVisibility m_visibility;

/******************************************************/
// the following do not make sense for us

// pointer-events  v 	v 	'visiblePainted' | 'visibleFill' | 'visibleStroke' |
//                              'visible' | 'painted' | 'fill' | 'stroke' | 'all' |
//                              'none' | 'inherit'
//QSvgPointEvents m_pointerEvents;

// audio-level     v  	x  	'inherit' | <Number.datatype>

QT_END_NAMESPACE

#endif // QT_NO_SVG
#endif // QSVGSTYLE_P_H