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/****************************************************************************
**
** 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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);
void pushColorCopy();
void popColor();
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();
void resolveGradients(QSvgNode *node);
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
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