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Diffstat (limited to 'src/svg/qsvgstructure.cpp')
| -rw-r--r-- | src/svg/qsvgstructure.cpp | 424 |
1 files changed, 424 insertions, 0 deletions
diff --git a/src/svg/qsvgstructure.cpp b/src/svg/qsvgstructure.cpp new file mode 100644 index 0000000..3551fec --- /dev/null +++ b/src/svg/qsvgstructure.cpp @@ -0,0 +1,424 @@ +/**************************************************************************** +** +** 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. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qsvgstructure_p.h" + +#ifndef QT_NO_SVG + +#include "qsvgnode_p.h" +#include "qsvgstyle_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); + + if (displayMode() != QSvgNode::NoneMode) { + while (itr != m_renderers.end()) { + QSvgNode *node = *itr; + if (node->isVisible()) + 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 +{ + const QSvgStructureNode *group = this; + while (group && group->type() != QSvgNode::DOC) { + group = static_cast<QSvgStructureNode*>(group->parent()); + } + if (group) + return group->m_scope[id]; + return 0; +} + +void QSvgStructureNode::addChild(QSvgNode *child, const QString &id, bool def) +{ + if (!def) + m_renderers.append(child); + + if (child->type() == QSvgNode::DEFS) { + QSvgDefs *defs = + static_cast<QSvgDefs*>(child); + m_linkedScopes.append(defs); + } + + if (id.isEmpty()) + return; //we can't add it to scope without id + + QSvgStructureNode *group = this; + while (group && group->type() != QSvgNode::DOC) { + group = static_cast<QSvgStructureNode*>(group->parent()); + } + if (group) + group->m_scope.insert(id, child); +} + +QSvgDefs::QSvgDefs(QSvgNode *parent) + : QSvgStructureNode(parent) +{ +} + +void QSvgDefs::draw(QPainter *, QSvgExtraStates &) +{ + //noop +} + +QSvgNode::Type QSvgDefs::type() const +{ + return DEFS; +} + +QSvgStyleProperty * QSvgStructureNode::scopeStyle(const QString &id) const +{ + const QSvgStructureNode *group = this; + while (group) { + QSvgStyleProperty *prop = group->styleProperty(id); + if (prop) + return prop; + QList<QSvgStructureNode*>::const_iterator itr = group->m_linkedScopes.constBegin(); + while (itr != group->m_linkedScopes.constEnd()) { + prop = (*itr)->styleProperty(id); + if (prop) + return prop; + ++itr; + } + group = static_cast<QSvgStructureNode*>(group->parent()); + } + return 0; +} + + +/* + 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); + + if (displayMode() != QSvgNode::NoneMode) { + while (itr != m_renderers.end()) { + QSvgNode *node = *itr; + if (node->isVisible()) { + 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() const +{ + if (m_bounds.isEmpty()) { + foreach(QSvgNode *node, m_renderers) { + m_bounds |= node->transformedBounds(QTransform()); + } + } + + return m_bounds; +} + +QSvgNode * QSvgStructureNode::previousSiblingNode(QSvgNode *n) const +{ + QSvgNode *prev = 0; + QList<QSvgNode*>::const_iterator itr = m_renderers.constBegin(); + while (itr != m_renderers.constEnd()) { + QSvgNode *node = *itr; + if (node == n) + return prev; + prev = node; + } + return prev; +} + +QT_END_NAMESPACE + +#endif // QT_NO_SVG |