source: trunk/src/svg/qsvggraphics_p.h@ 490

/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
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** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
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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 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
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** additional rights. These rights are described in the Nokia Qt LGPL
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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 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
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**
** If you are unsure which license is appropriate for your use, please
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#ifndef QSVGGRAPHICS_P_H
#define QSVGGRAPHICS_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 "qsvgnode_p.h"

#ifndef QT_NO_SVG

#include "QtGui/qpainterpath.h"
#include "QtGui/qimage.h"
#include "QtGui/qtextlayout.h"
#include "QtGui/qtextoption.h"
#include "QtCore/qstack.h"

QT_BEGIN_NAMESPACE

class QTextCharFormat;

class QSvgAnimation : public QSvgNode
{
public:
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
};

class QSvgArc : public QSvgNode
{
public:
    QSvgArc(QSvgNode *parent, const QPainterPath &path);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
private:
    QPainterPath cubic;
    QRectF m_cachedBounds;
};

class QSvgCircle : public QSvgNode
{
public:
    QSvgCircle(QSvgNode *parent, const QRectF &rect);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
private:
    QRectF m_bounds;
};

class QSvgEllipse : public QSvgNode
{
public:
    QSvgEllipse(QSvgNode *parent, const QRectF &rect);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
private:
    QRectF m_bounds;
};

class QSvgImage : public QSvgNode
{
public:
    QSvgImage(QSvgNode *parent, const QImage &image,
              const QRect &bounds);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
private:
    QImage m_image;
    QRect  m_bounds;
};

class QSvgLine : public QSvgNode
{
public:
    QSvgLine(QSvgNode *parent, const QLineF &line);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
private:
    QLineF m_bounds;
};

class QSvgPath : public QSvgNode
{
public:
    QSvgPath(QSvgNode *parent, const QPainterPath &qpath);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;

    QPainterPath *qpath() {
        return &m_path;
    }
private:
    QPainterPath m_path;
    QRectF m_cachedBounds;
};

class QSvgPolygon : public QSvgNode
{
public:
    QSvgPolygon(QSvgNode *parent, const QPolygonF &poly);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
private:
    QPolygonF m_poly;
};

class QSvgPolyline : public QSvgNode
{
public:
    QSvgPolyline(QSvgNode *parent, const QPolygonF &poly);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
private:
    QPolygonF m_poly;
};

class QSvgRect : public QSvgNode
{
public:
    QSvgRect(QSvgNode *paren, const QRectF &rect, int rx=0, int ry=0);
    virtual Type type() const;
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual QRectF bounds() const;
private:
    QRectF m_rect;
    int m_rx, m_ry;
};

class  QSvgText : public QSvgNode
{
public:
    enum WhitespaceMode
    {
        Default,
        Preserve
    };

    QSvgText(QSvgNode *parent, const QPointF &coord);
    ~QSvgText();
    void setTextArea(const QSizeF &size);

    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    void insertText(const QString &text, WhitespaceMode mode);
    void insertFormat(const QTextCharFormat &format);
    void insertLineBreak();
    void popFormat();
    void setTextAlignment(const Qt::Alignment &alignment);
    const QTextCharFormat &topFormat() const;
    qreal scale() const;
    void setScale(qreal scale);
    //virtual QRectF bounds() const;
private:
    QPointF m_coord;

    QVector<QString> m_paragraphs;
    QStack<QTextCharFormat> m_formats;
    Qt::Alignment           m_textAlignment;
    QVector<QList<QTextLayout::FormatRange> > m_formatRanges;
    qreal m_scale;
    bool m_appendSpace;
    Type m_type;
    QSizeF m_size;
};

class QSvgUse : public QSvgNode
{
public:
    QSvgUse(const QPointF &start, QSvgNode *parent, QSvgNode *link);
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
    virtual QRectF bounds() const;
    virtual QRectF transformedBounds(const QTransform &transform) const;

private:
    QSvgNode *m_link;
    QPointF   m_start;
    mutable QRectF    m_bounds;
};

class QSvgVideo : public QSvgNode
{
public:
    virtual void draw(QPainter *p, QSvgExtraStates &states);
    virtual Type type() const;
};

QT_END_NAMESPACE

#endif // QT_NO_SVG
#endif // QSVGGRAPHICS_P_H