/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the QtSVG module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef QSVGNODE_P_H
#define QSVGNODE_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 "qsvgstyle_p.h"

#include "QtCore/qstring.h"
#include "QtCore/qhash.h"

class QPainter;
class QSvgTinyDocument;

class QSvgNode
{
public:
    enum Type
    {
        DOC,
        G,
        DEFS,
        SWITCH,
        ANIMATION,
        ARC,
        CIRCLE,
        ELLIPSE,
        IMAGE,
        LINE,
        PATH,
        POLYGON,
        POLYLINE,
        RECT,
        TEXT,
        TEXTAREA,
        USE,
        VIDEO
    };
public:
    QSvgNode(QSvgNode *parent=0);
    virtual ~QSvgNode();
    virtual void draw(QPainter *p) =0;

    QSvgNode *parent() const;

    void appendStyleProperty(QSvgStyleProperty *prop, const QString &id,
                             bool justLink=false);
    void applyStyle(QPainter *p);
    void revertStyle(QPainter *p);
    QSvgStyleProperty *styleProperty(QSvgStyleProperty::Type type) const;
    QSvgStyleProperty *styleProperty(const QString &id) const;

    QSvgTinyDocument *document() const;

    virtual Type type() const =0;
    virtual QRectF bounds() const;

    void setRequiredFeatures(const QStringList &lst);
    const QStringList & requiredFeatures() const;

    void setRequiredExtensions(const QStringList &lst);
    const QStringList & requiredExtensions() const;

    void setRequiredLanguages(const QStringList &lst);
    const QStringList & requiredLanguages() const;

    void setRequiredFormats(const QStringList &lst);
    const QStringList & requiredFormats() const;

    void setRequiredFonts(const QStringList &lst);
    const QStringList & requiredFonts() const;

    void setVisible(bool visible);
    bool isVisible() const;
private:
    QSvgNode   *m_parent;
    QSvgStyle   m_style;
    QHash<QString, QSvgRefCounter<QSvgStyleProperty> > m_styles;

    QStringList m_requiredFeatures;
    QStringList m_requiredExtensions;
    QStringList m_requiredLanguages;
    QStringList m_requiredFormats;
    QStringList m_requiredFonts;

    bool        m_visible;
};

inline QSvgNode *QSvgNode::parent() const
{
    return m_parent;
}

inline bool QSvgNode::isVisible() const
{
    return m_visible;
}

#endif // QSVGNODE_P_H
