WebCore/kcanvas/KCanvasContainer.h

/*
    Copyright (C) 2004, 2005 Nikolas Zimmermann <wildfox@kde.org>
                  2004, 2005 Rob Buis <buis@kde.org>

    This file is part of the KDE project

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    aint with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.
*/

#ifndef KCanvasContainer_H
#define KCanvasContainer_H

#include <kcanvas/KCanvasItem.h>

class KCanvas;
class KRenderingStyle;
class KCanvasContainer : public KCanvasItem
{
public:
    KCanvasContainer(KCanvas *canvas, KRenderingStyle *style);
    virtual ~KCanvasContainer();

    // Some containers do not want it's children
    // to be drawn, because they may be 'referenced'
    // Example: <marker> children in SVG
    void setDrawContents(bool drawContents);

    virtual bool needsTemporaryBuffer() const;
    virtual bool isContainer() const { return true; }

    // Container logic
    virtual void appendItem(KCanvasItem *item);
    virtual void insertItemBefore(KCanvasItem *item, KCanvasItem *reference);
    virtual void removeItem(const KCanvasItem *item);

    // 'KCanvasItem' functions
    virtual bool fillContains(const QPoint &p) const;
    virtual bool strokeContains(const QPoint &p) const;

    virtual void draw(const QRect &rect) const;
    
    virtual void invalidate() const;
    virtual QRect bbox(bool includeStroke = true) const;

    KCanvasItem *first() const;
    KCanvasItem *last() const;

private:
    friend class KCanvasItem;

    virtual bool raiseItem(KCanvasItem *item);
    virtual bool lowerItem(KCanvasItem *item);

private:
    friend class KCanvas;

    void collisions(const QPoint &p, KCanvasItemList &hits) const;

private:
    class Private;
    Private *d;
};

#endif

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