/*
* Copyright (C) 2012 Webdoc SA
*
* This file is part of Open-Sankoré.
*
* Open-Sankoré 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, version 2,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* Open-Sankoré 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 along with Open-Sankoré; if not, see
* .
*/
#ifndef UBSCENECACHE_H
#define UBSCENECACHE_H
#include
#include "domain/UBGraphicsScene.h"
class UBDocumentProxy;
class UBGraphicsScene;
class UBGraphicsScene;
class UBSceneCacheID
{
public:
UBSceneCacheID()
: documentProxy(0)
, pageIndex(-1)
{
// NOOP
}
UBSceneCacheID(UBDocumentProxy* pDocumentProxy, int pPageIndex)
{
documentProxy = pDocumentProxy;
pageIndex = pPageIndex;
}
UBDocumentProxy* documentProxy;
int pageIndex;
};
inline bool operator==(const UBSceneCacheID &id1, const UBSceneCacheID &id2)
{
return id1.documentProxy == id2.documentProxy
&& id1.pageIndex == id2.pageIndex;
}
inline uint qHash(const UBSceneCacheID &id)
{
return qHash(id.pageIndex);
}
class UBSceneCache : public QHash
{
public:
UBSceneCache();
virtual ~UBSceneCache();
UBGraphicsScene* createScene(UBDocumentProxy* proxy, int pageIndex, bool useUndoRedoStack);
void insert (UBDocumentProxy* proxy, int pageIndex, UBGraphicsScene* scene );
bool contains(UBDocumentProxy* proxy, int pageIndex) const;
UBGraphicsScene* value(UBDocumentProxy* proxy, int pageIndex);
UBGraphicsScene* value(const UBSceneCacheID& key) const
{
return QHash::value(key);
}
void removeScene(UBDocumentProxy* proxy, int pageIndex);
void removeAllScenes(UBDocumentProxy* proxy);
void moveScene(UBDocumentProxy* proxy, int sourceIndex, int targetIndex);
void shiftUpScenes(UBDocumentProxy* proxy, int startIncIndex, int endIncIndex);
private:
void internalMoveScene(UBDocumentProxy* proxy, int sourceIndex, int targetIndex);
void dumpCacheContent();
void compactCache();
int mCachedSceneCount;
QQueue mCachedKeyFIFO;
QHash mViewStates;
};
#endif // UBSCENECACHE_H