| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt SVG module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
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| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ** information to ensure the GNU General Public License requirements will |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #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 "QtCore/qxmlstream.h" |
| #include "QtCore/qhash.h" |
| #include "QtCore/qstack.h" |
| #include <QtCore/QLoggingCategory> |
| #include "qsvgstyle_p.h" |
| #include "private/qcssparser_p.h" |
| #include "qsvggraphics_p.h" |
| #include "qtsvgglobal_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QSvgNode; |
| class QSvgTinyDocument; |
| class QSvgHandler; |
| class QColor; |
| class QSvgStyleSelector; |
| class QXmlStreamReader; |
| |
| #ifndef QT_NO_CSSPARSER |
| |
| struct QSvgCssAttribute |
| { |
| QXmlStreamStringRef name; |
| QXmlStreamStringRef value; |
| }; |
| |
| #endif |
| |
| class Q_SVG_PRIVATE_EXPORT 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(); |
| |
| QIODevice *device() const; |
| 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); |
| void pushColorCopy(); |
| void popColor(); |
| QColor currentColor() const; |
| |
| #ifndef QT_NO_CSSPARSER |
| void setInStyle(bool b); |
| bool inStyle() const; |
| |
| QSvgStyleSelector *selector() const; |
| #endif |
| |
| void setAnimPeriod(int start, int end); |
| int animationDuration() const; |
| |
| #ifndef QT_NO_CSSPARSER |
| void parseCSStoXMLAttrs(const QString &css, QVector<QSvgCssAttribute> *attributes); |
| #endif |
| |
| 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; |
| |
| int m_animEnd; |
| |
| QXmlStreamReader *const xml; |
| #ifndef QT_NO_CSSPARSER |
| bool m_inStyle; |
| QSvgStyleSelector *m_selector; |
| QCss::Parser m_cssParser; |
| #endif |
| void parse(); |
| void resolveGradients(QSvgNode *node, int nestedDepth = 0); |
| void resolveNodes(); |
| |
| QPen m_defaultPen; |
| /** |
| * Whether we own the variable xml, and hence whether |
| * we need to delete it. |
| */ |
| const bool m_ownsReader; |
| }; |
| |
| Q_DECLARE_LOGGING_CATEGORY(lcSvgHandler) |
| |
| QT_END_NAMESPACE |
| |
| #endif // QSVGHANDLER_P_H |