summaryrefslogtreecommitdiffstats
path: root/src/svg/qsvgstructure.cpp
blob: 4d9fad593bd98d546a11dfdf7d1266506246c637 (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
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtSvg module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qsvgstructure_p.h"

#ifndef QT_NO_SVG

#include "qsvgnode_p.h"
#include "qsvgstyle_p.h"
#include "qsvgtinydocument_p.h"

#include "qpainter.h"
#include "qlocale.h"
#include "qdebug.h"

QT_BEGIN_NAMESPACE

QSvgG::QSvgG(QSvgNode *parent)
    : QSvgStructureNode(parent)
{

}

QSvgStructureNode::~QSvgStructureNode()
{
    qDeleteAll(m_renderers);
}

void QSvgG::draw(QPainter *p, QSvgExtraStates &states)
{
    QList<QSvgNode*>::iterator itr = m_renderers.begin();
    applyStyle(p, states);

    while (itr != m_renderers.end()) {
        QSvgNode *node = *itr;
        if ((node->isVisible()) && (node->displayMode() != QSvgNode::NoneMode))
            node->draw(p, states);
        ++itr;
    }
    revertStyle(p, states);
}

QSvgNode::Type QSvgG::type() const
{
    return G;
}

QSvgStructureNode::QSvgStructureNode(QSvgNode *parent)
    :QSvgNode(parent)
{

}

QSvgNode * QSvgStructureNode::scopeNode(const QString &id) const
{
    QSvgTinyDocument *doc = document();
    return doc ? doc->namedNode(id) : 0;
}

void QSvgStructureNode::addChild(QSvgNode *child, const QString &id)
{
    m_renderers.append(child);

    if (id.isEmpty())
        return; //we can't add it to scope without id

    QSvgTinyDocument *doc = document();
    if (doc)
        doc->addNamedNode(id, child);
}

QSvgDefs::QSvgDefs(QSvgNode *parent)
    : QSvgStructureNode(parent)
{
}

void QSvgDefs::draw(QPainter *, QSvgExtraStates &)
{
    //noop
}

QSvgNode::Type QSvgDefs::type() const
{
    return DEFS;
}

/*
  Below is a lookup function based on the gperf output using the following set:

  http://www.w3.org/Graphics/SVG/feature/1.2/#SVG
  http://www.w3.org/Graphics/SVG/feature/1.2/#SVG-static
  http://www.w3.org/Graphics/SVG/feature/1.2/#CoreAttribute
  http://www.w3.org/Graphics/SVG/feature/1.2/#Structure
  http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessing
  http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessingAttribute
  http://www.w3.org/Graphics/SVG/feature/1.2/#Image
  http://www.w3.org/Graphics/SVG/feature/1.2/#Prefetch
  http://www.w3.org/Graphics/SVG/feature/1.2/#Shape
  http://www.w3.org/Graphics/SVG/feature/1.2/#Text
  http://www.w3.org/Graphics/SVG/feature/1.2/#PaintAttribute
  http://www.w3.org/Graphics/SVG/feature/1.2/#OpacityAttribute
  http://www.w3.org/Graphics/SVG/feature/1.2/#GraphicsAttribute
  http://www.w3.org/Graphics/SVG/feature/1.2/#Gradient
  http://www.w3.org/Graphics/SVG/feature/1.2/#SolidColor
  http://www.w3.org/Graphics/SVG/feature/1.2/#XlinkAttribute
  http://www.w3.org/Graphics/SVG/feature/1.2/#ExternalResourcesRequiredAttribute
  http://www.w3.org/Graphics/SVG/feature/1.2/#Font
  http://www.w3.org/Graphics/SVG/feature/1.2/#Hyperlinking
  http://www.w3.org/Graphics/SVG/feature/1.2/#Extensibility
*/

// ----- begin of generated code -----

/* C code produced by gperf version 3.0.2 */
/* Command-line: gperf -c -L c svg  */
/* Computed positions: -k'45-46' */

#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
      && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
      && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
      && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
      && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
      && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
      && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
      && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
      && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
      && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
      && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
      && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
      && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
      && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
      && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
      && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
      && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
      && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
      && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
      && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
      && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
      && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
      && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126))
/* The character set is not based on ISO-646.  */
#error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
#endif

enum {
    TOTAL_KEYWORDS = 20,
    MIN_WORD_LENGTH = 47,
    MAX_WORD_LENGTH = 78,
    MIN_HASH_VALUE = 48,
    MAX_HASH_VALUE = 88
};
/* maximum key range = 41, duplicates = 0 */

inline static bool isSupportedSvgFeature(const QString &str)
{
    static const unsigned char asso_values[] = {
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89,  0, 89,  5,
        15,  5,  0, 10, 89, 89, 89, 89, 89,  0,
        15, 89, 89,  0,  0, 89,  5, 89,  0, 89,
        89, 89, 89, 89, 89, 89, 89,  0, 89, 89,
        89,  0, 89, 89,  0, 89, 89, 89,  0,  5,
        89,  0,  0, 89,  5, 89,  0, 89, 89, 89,
        5,  0, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89, 89, 89, 89, 89,
        89, 89, 89, 89, 89, 89
    };

    static const char * wordlist[] = {
        "", "", "", "", "", "", "", "", "",
        "", "", "", "", "", "", "", "", "",
        "", "", "", "", "", "", "", "", "",
        "", "", "", "", "", "", "", "", "",
        "", "", "", "", "", "", "", "", "",
        "", "", "",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Text",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Shape",
        "", "",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#SVG",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Structure",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#SolidColor",
        "",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Hyperlinking",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#CoreAttribute",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#XlinkAttribute",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#SVG-static",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#OpacityAttribute",
        "",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Gradient",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Font",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Image",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessing",
        "",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Extensibility",
        "", "", "",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#GraphicsAttribute",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#Prefetch",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#PaintAttribute",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessingAttribute",
        "", "", "", "", "", "", "", "", "",
        "", "", "", "",
        "http://www.w3.org/Graphics/SVG/feature/1.2/#ExternalResourcesRequiredAttribute"
    };

    if (str.length() <= MAX_WORD_LENGTH && str.length() >= MIN_WORD_LENGTH) {
        const int key = str.length()
                        + asso_values[str.at(45).unicode()]
                        + asso_values[str.at(44).unicode()];
        if (key <= MAX_HASH_VALUE && key >= 0)
            return str == QLatin1String(wordlist[key]);
    }
    return false;
}

// ----- end of generated code -----

static inline bool isSupportedSvgExtension(const QString &)
{
    return false;
}


QSvgSwitch::QSvgSwitch(QSvgNode *parent)
    : QSvgStructureNode(parent)
{
    init();
}

void QSvgSwitch::draw(QPainter *p, QSvgExtraStates &states)
{
    QList<QSvgNode*>::iterator itr = m_renderers.begin();
    applyStyle(p, states);

    while (itr != m_renderers.end()) {
        QSvgNode *node = *itr;
        if (node->isVisible() && (node->displayMode() != QSvgNode::NoneMode)) {
            const QStringList &features  = node->requiredFeatures();
            const QStringList &extensions = node->requiredExtensions();
            const QStringList &languages = node->requiredLanguages();
            const QStringList &formats = node->requiredFormats();
            const QStringList &fonts = node->requiredFonts();

            bool okToRender = true;
            if (!features.isEmpty()) {
                QStringList::const_iterator sitr = features.constBegin();
                for (; sitr != features.constEnd(); ++sitr) {
                    if (!isSupportedSvgFeature(*sitr)) {
                        okToRender = false;
                        break;
                    }
                }
            }

            if (okToRender && !extensions.isEmpty()) {
                QStringList::const_iterator sitr = extensions.constBegin();
                for (; sitr != extensions.constEnd(); ++sitr) {
                    if (!isSupportedSvgExtension(*sitr)) {
                        okToRender = false;
                        break;
                    }
                }
            }

            if (okToRender && !languages.isEmpty()) {
                QStringList::const_iterator sitr = languages.constBegin();
                okToRender = false;
                for (; sitr != languages.constEnd(); ++sitr) {
                    if ((*sitr).startsWith(m_systemLanguagePrefix)) {
                        okToRender = true;
                        break;
                    }
                }
            }

            if (okToRender && !formats.isEmpty()) {
                okToRender = false;
            }

            if (okToRender && !fonts.isEmpty()) {
                okToRender = false;
            }

            if (okToRender) {
                node->draw(p, states);
                break;
            }
        }
        ++itr;
    }
    revertStyle(p, states);
}

QSvgNode::Type QSvgSwitch::type() const
{
    return SWITCH;
}

void QSvgSwitch::init()
{
    QLocale locale;
    m_systemLanguage = locale.name().replace(QLatin1Char('_'), QLatin1Char('-'));
    int idx = m_systemLanguage.indexOf(QLatin1Char('-'));
    m_systemLanguagePrefix = m_systemLanguage.mid(0, idx);
}

QRectF QSvgStructureNode::bounds(QPainter *p, QSvgExtraStates &states) const
{
    QRectF bounds;
    foreach(QSvgNode *node, m_renderers)
        bounds |= node->transformedBounds(p, states);
    return bounds;
}

QSvgNode * QSvgStructureNode::previousSiblingNode(QSvgNode *n) const
{
    QSvgNode *prev = 0;
    QList<QSvgNode*>::const_iterator itr = m_renderers.constBegin();
    for (; itr != m_renderers.constEnd(); ++itr) {
        QSvgNode *node = *itr;
        if (node == n)
            return prev;
        prev = node;
    }
    return prev;
}

QT_END_NAMESPACE

#endif // QT_NO_SVG