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/*
* This file is part of the KDE project
*
* Copyright (c) 2005 Bart Coppens <kde@bartcoppens.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef _KIS_IMAGE_RASTERED_CACHE_H_
#define _KIS_IMAGE_RASTERED_CACHE_H_
#include <qobject.h>
#include <qvaluevector.h>
#include <qvaluelist.h>
#include <qtimer.h>
#include <kis_paint_device.h>
class KisView;
class KisImageRasteredCache : public QObject {
Q_OBJECT
public:
class Observer {
public:
virtual Observer* createNew(int x, int y, int w, int h) = 0;
virtual void regionUpdated(KisPaintDeviceSP dev) = 0;
virtual ~Observer() {}
};
KisImageRasteredCache(KisView* view, Observer* o);
virtual ~KisImageRasteredCache();
signals:
void cacheUpdated();
private slots:
void imageUpdated(QRect rc);
void imageSizeChanged(Q_INT32 w, Q_INT32 h);
void timeOut();
private:
class Element {
public:
Element(Observer* o) : observer(o), valid(true) {}
Observer* observer;
bool valid;
};
typedef QValueVector< QValueVector<Element*> > Raster;
typedef QValueList<Element*> Queue;
void cleanUpElements();
Observer* m_observer;
Raster m_raster;
Queue m_queue;
QTimer m_timer;
int m_timeOutMSec;
int m_rasterSize;
int m_width, m_height;
KisView * m_view;
bool m_busy;
KisPaintDeviceSP m_imageProjection;
};
#endif // _KIS_IMAGE_RASTERED_CACHE_H_
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