mirror of
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248 lines
7.6 KiB
C++
248 lines
7.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Copyright (C) 2016-2020 Ivailo Monev
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**
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** This file is part of the QtSvg module of the Katie Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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**
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qsvgstructure_p.h"
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#ifndef QT_NO_SVG
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#include "qsvgnode_p.h"
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#include "qsvgstyle_p.h"
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#include "qsvgtinydocument_p.h"
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#include "qpainter.h"
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#include "qlocale.h"
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#include "qdebug.h"
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QT_BEGIN_NAMESPACE
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QSvgG::QSvgG(QSvgNode *parent)
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: QSvgStructureNode(parent)
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{
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}
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QSvgStructureNode::~QSvgStructureNode()
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{
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qDeleteAll(m_renderers);
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}
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void QSvgG::draw(QPainter *p, QSvgExtraStates &states)
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{
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QList<QSvgNode*>::iterator itr = m_renderers.begin();
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applyStyle(p, states);
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while (itr != m_renderers.end()) {
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QSvgNode *node = *itr;
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if ((node->isVisible()) && (node->displayMode() != QSvgNode::NoneMode))
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node->draw(p, states);
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++itr;
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}
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revertStyle(p, states);
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}
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QSvgNode::Type QSvgG::type() const
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{
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return G;
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}
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QSvgStructureNode::QSvgStructureNode(QSvgNode *parent)
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:QSvgNode(parent)
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{
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}
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QSvgNode * QSvgStructureNode::scopeNode(const QString &id) const
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{
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QSvgTinyDocument *doc = document();
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return doc ? doc->namedNode(id) : 0;
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}
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void QSvgStructureNode::addChild(QSvgNode *child, const QString &id)
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{
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m_renderers.append(child);
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if (id.isEmpty())
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return; //we can't add it to scope without id
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QSvgTinyDocument *doc = document();
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if (doc)
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doc->addNamedNode(id, child);
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}
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QSvgDefs::QSvgDefs(QSvgNode *parent)
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: QSvgStructureNode(parent)
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{
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}
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void QSvgDefs::draw(QPainter *, QSvgExtraStates &)
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{
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//noop
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}
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QSvgNode::Type QSvgDefs::type() const
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{
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return DEFS;
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}
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inline static bool isSupportedSvgFeature(const QString &str)
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{
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static const QLatin1String svgFeatureTbl[] = {
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Text"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Shape"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#SVG"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Structure"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#SolidColor"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Hyperlinking"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#CoreAttribute"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#XlinkAttribute"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#SVG-static"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#OpacityAttribute"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Gradient"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Font"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Image"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessing"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Extensibility"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#GraphicsAttribute"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#Prefetch"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#PaintAttribute"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessingAttribute"),
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QLatin1String("http://www.w3.org/Graphics/SVG/feature/1.2/#ExternalResourcesRequiredAttribute")
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};
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for (qint16 i = 0; i < 20; i++) {
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if (str == svgFeatureTbl[i])
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return true;
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}
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return false;
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}
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QSvgSwitch::QSvgSwitch(QSvgNode *parent)
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: QSvgStructureNode(parent)
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{
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QLocale locale;
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m_systemLanguage = locale.name().replace(QLatin1Char('_'), QLatin1Char('-'));
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int idx = m_systemLanguage.indexOf(QLatin1Char('-'));
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m_systemLanguagePrefix = m_systemLanguage.mid(0, idx);
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}
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void QSvgSwitch::draw(QPainter *p, QSvgExtraStates &states)
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{
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QList<QSvgNode*>::iterator itr = m_renderers.begin();
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applyStyle(p, states);
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while (itr != m_renderers.end()) {
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QSvgNode *node = *itr;
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if (node->isVisible() && (node->displayMode() != QSvgNode::NoneMode)) {
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const QStringList &features = node->requiredFeatures();
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const QStringList &extensions = node->requiredExtensions();
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const QStringList &languages = node->requiredLanguages();
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const QStringList &formats = node->requiredFormats();
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const QStringList &fonts = node->requiredFonts();
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bool okToRender = true;
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if (!features.isEmpty()) {
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QStringList::const_iterator sitr = features.constBegin();
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for (; sitr != features.constEnd(); ++sitr) {
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if (!isSupportedSvgFeature(*sitr)) {
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okToRender = false;
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break;
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}
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}
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}
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if (okToRender && !extensions.isEmpty()) {
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okToRender = false;
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}
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if (okToRender && !languages.isEmpty()) {
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QStringList::const_iterator sitr = languages.constBegin();
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okToRender = false;
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for (; sitr != languages.constEnd(); ++sitr) {
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if ((*sitr).startsWith(m_systemLanguagePrefix)) {
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okToRender = true;
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break;
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}
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}
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}
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if (okToRender && !formats.isEmpty()) {
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okToRender = false;
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}
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if (okToRender && !fonts.isEmpty()) {
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okToRender = false;
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}
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if (okToRender) {
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node->draw(p, states);
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break;
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}
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}
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++itr;
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}
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revertStyle(p, states);
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}
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QSvgNode::Type QSvgSwitch::type() const
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{
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return SWITCH;
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}
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QRectF QSvgStructureNode::bounds(QPainter *p, QSvgExtraStates &states) const
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{
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QRectF bounds;
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foreach(QSvgNode *node, m_renderers)
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bounds |= node->transformedBounds(p, states);
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return bounds;
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}
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QSvgNode * QSvgStructureNode::previousSiblingNode(QSvgNode *n) const
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{
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QSvgNode *prev = 0;
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QList<QSvgNode*>::const_iterator itr = m_renderers.constBegin();
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for (; itr != m_renderers.constEnd(); ++itr) {
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QSvgNode *node = *itr;
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if (node == n)
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return prev;
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prev = node;
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}
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return prev;
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}
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QT_END_NAMESPACE
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#endif // QT_NO_SVG
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