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Diffstat (limited to 'src/svg/qsvghandler_p.h')
| -rw-r--r-- | src/svg/qsvghandler_p.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/svg/qsvghandler_p.h b/src/svg/qsvghandler_p.h new file mode 100644 index 0000000..c4c2f3c --- /dev/null +++ b/src/svg/qsvghandler_p.h @@ -0,0 +1,185 @@ +/**************************************************************************** +** +** 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 QSVGHANDLER_P_H +#define QSVGHANDLER_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 "QtXml/qxmlstream.h" + +#ifndef QT_NO_SVG + +#include "QtCore/qhash.h" +#include "QtCore/qstack.h" +#include "qsvgstyle_p.h" +#include "private/qcssparser_p.h" +#include "private/qsvggraphics_p.h" + +QT_BEGIN_NAMESPACE + +class QSvgNode; +class QSvgTinyDocument; +class QSvgHandler; +class QColor; +class QSvgStyleSelector; +class QXmlStreamReader; + +struct QSvgCssAttribute +{ + QXmlStreamStringRef name; + QXmlStreamStringRef value; +}; + +class QSvgHandler +{ +public: + enum LengthType { + LT_PERCENT, + LT_PX, + LT_PC, + LT_PT, + LT_MM, + LT_CM, + LT_IN, + LT_OTHER + }; + +public: + QSvgHandler(QIODevice *device); + QSvgHandler(const QByteArray &data); + QSvgHandler(QXmlStreamReader *const data); + ~QSvgHandler(); + + QSvgTinyDocument *document() const; + + inline bool ok() const { + return document() != 0 && !xml->hasError(); + } + + inline QString errorString() const { return xml->errorString(); } + inline int lineNumber() const { return xml->lineNumber(); } + + void setDefaultCoordinateSystem(LengthType type); + LengthType defaultCoordinateSystem() const; + + void pushColor(const QColor &color); + QColor currentColor() const; + + void setInStyle(bool b); + bool inStyle() const; + + QSvgStyleSelector *selector() const; + + void setAnimPeriod(int start, int end); + int animationDuration() const; + + void parseCSStoXMLAttrs(QString css, QVector<QSvgCssAttribute> *attributes); + + inline QPen defaultPen() const + { return m_defaultPen; } + +public: + bool startElement(const QString &localName, const QXmlStreamAttributes &attributes); + bool endElement(const QStringRef &localName); + bool characters(const QStringRef &str); + bool processingInstruction(const QString &target, const QString &data); + +private: + void init(); + + QSvgTinyDocument *m_doc; + QStack<QSvgNode*> m_nodes; + + QList<QSvgNode*> m_resolveNodes; + + enum CurrentNode + { + Unknown, + Graphics, + Style + }; + QStack<CurrentNode> m_skipNodes; + + /*! + Follows the depths of elements. The top is current xml:space + value that applies for a given element. + */ + QStack<QSvgText::WhitespaceMode> m_whitespaceMode; + + QSvgRefCounter<QSvgStyleProperty> m_style; + + LengthType m_defaultCoords; + + QStack<QColor> m_colorStack; + QStack<int> m_colorTagCount; + + bool m_inStyle; + + QSvgStyleSelector *m_selector; + + int m_animEnd; + + QXmlStreamReader *const xml; + QCss::Parser m_cssParser; + void parse(); + + QPen m_defaultPen; + /** + * Whether we own the variable xml, and hence whether + * we need to delete it. + */ + const bool m_ownsReader; +}; + +QT_END_NAMESPACE + +#endif // QT_NO_SVG +#endif // QSVGHANDLER_P_H |