/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtSvg module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, 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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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt 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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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QSVGGRAPHICS_P_H+
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#define QSVGGRAPHICS_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include "qsvgnode_p.h"+
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+
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#ifndef QT_NO_SVG+
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+
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#include "QtGui/qpainterpath.h"+
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#include "QtGui/qimage.h"+
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#include "QtGui/qtextlayout.h"+
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#include "QtGui/qtextoption.h"+
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#include "QtCore/qstack.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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class QTextCharFormat;+
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+
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class QSvgAnimation : public QSvgNode+
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{+
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public:+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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};+
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+
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class QSvgArc : public QSvgNode+
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{+
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public:+
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    QSvgArc(QSvgNode *parent, const QPainterPath &path);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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private:+
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    QPainterPath cubic;+
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    QRectF m_cachedBounds;+
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};+
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+
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class QSvgCircle : public QSvgNode+
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{+
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public:+
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    QSvgCircle(QSvgNode *parent, const QRectF &rect);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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private:+
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    QRectF m_bounds;+
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};+
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+
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class QSvgEllipse : public QSvgNode+
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{+
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public:+
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    QSvgEllipse(QSvgNode *parent, const QRectF &rect);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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private:+
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    QRectF m_bounds;+
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};+
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+
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class QSvgImage : public QSvgNode+
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{+
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public:+
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    QSvgImage(QSvgNode *parent, const QImage &image,+
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              const QRect &bounds);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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private:+
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    QImage m_image;+
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    QRect  m_bounds;+
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};+
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+
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class QSvgLine : public QSvgNode+
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{+
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public:+
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    QSvgLine(QSvgNode *parent, const QLineF &line);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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private:+
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    QLineF m_bounds;+
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};+
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+
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class QSvgPath : public QSvgNode+
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{+
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public:+
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    QSvgPath(QSvgNode *parent, const QPainterPath &qpath);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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+
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    QPainterPath *qpath() {+
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        return &m_path;+
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    }+
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private:+
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    QPainterPath m_path;+
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    mutable QRectF m_cachedBounds;+
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};+
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+
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class QSvgPolygon : public QSvgNode+
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{+
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public:+
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    QSvgPolygon(QSvgNode *parent, const QPolygonF &poly);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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private:+
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    QPolygonF m_poly;+
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};+
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+
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class QSvgPolyline : public QSvgNode+
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{+
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public:+
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    QSvgPolyline(QSvgNode *parent, const QPolygonF &poly);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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private:+
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    QPolygonF m_poly;+
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};+
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+
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class QSvgRect : public QSvgNode+
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{+
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public:+
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    QSvgRect(QSvgNode *paren, const QRectF &rect, int rx=0, int ry=0);+
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    virtual Type type() const;+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual QRectF bounds() const;+
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private:+
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    QRectF m_rect;+
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    int m_rx, m_ry;+
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};+
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+
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class  QSvgTspan;+
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+
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class  QSvgText : public QSvgNode+
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{+
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public:+
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    enum WhitespaceMode+
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    {+
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        Default,+
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        Preserve+
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    };+
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+
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    QSvgText(QSvgNode *parent, const QPointF &coord);+
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    ~QSvgText();+
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    void setTextArea(const QSizeF &size);+
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+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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+
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    void addTspan(QSvgTspan *tspan) {m_tspans.append(tspan);}+
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    void addText(const QString &text);+
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    void addLineBreak() {m_tspans.append(LINEBREAK);}+
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    void setWhitespaceMode(WhitespaceMode mode) {m_mode = mode;}+
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+
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    //virtual QRectF bounds() const;+
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private:+
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    static QSvgTspan * const LINEBREAK;+
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+
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    QPointF m_coord;+
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+
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    // 'm_tspans' is also used to store characters outside tspans and line breaks.+
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    // If a 'm_tspan' item is null, it indicates a line break.+
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    QVector<QSvgTspan *> m_tspans;+
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+
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    Type m_type;+
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    QSizeF m_size;+
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    WhitespaceMode m_mode;+
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};+
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+
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class  QSvgTspan : public QSvgNode+
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{+
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public:+
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    // tspans are also used to store normal text, so the 'isProperTspan' is used to separate text from tspan.+
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    QSvgTspan(QSvgNode *parent, bool isProperTspan = true)+
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        : QSvgNode(parent), m_mode(QSvgText::Default), m_isTspan(isProperTspan)+
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    {+
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    }+
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    ~QSvgTspan() { };+
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    virtual Type type() const {return TSPAN;}+
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    virtual void draw(QPainter *, QSvgExtraStates &) {Q_ASSERT(!"Tspans should be drawn through QSvgText::draw().");}+
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    void addText(const QString &text) {m_text += text;}+
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    const QString &text() const {return m_text;}+
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    bool isTspan() const {return m_isTspan;}+
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    void setWhitespaceMode(QSvgText::WhitespaceMode mode) {m_mode = mode;}+
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    QSvgText::WhitespaceMode whitespaceMode() const {return m_mode;}+
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private:+
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    QString m_text;+
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    QSvgText::WhitespaceMode m_mode;+
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    bool m_isTspan;+
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};+
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+
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class QSvgUse : public QSvgNode+
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{+
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public:+
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    QSvgUse(const QPointF &start, QSvgNode *parent, QSvgNode *link);+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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    virtual QRectF bounds() const;+
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    virtual QRectF transformedBounds(const QTransform &transform) const;+
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+
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private:+
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    QSvgNode *m_link;+
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    QPointF   m_start;+
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    mutable QRectF    m_bounds;+
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};+
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+
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class QSvgVideo : public QSvgNode+
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{+
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public:+
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    virtual void draw(QPainter *p, QSvgExtraStates &states);+
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    virtual Type type() const;+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QT_NO_SVG+
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#endif // QSVGGRAPHICS_P_H+
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