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122 lines
3.1 KiB
122 lines
3.1 KiB
/*
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* Copyright (C) 2015-2016 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef UBSCENECACHE_H
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#define UBSCENECACHE_H
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#include <QtCore>
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#include "domain/UBGraphicsScene.h"
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class UBDocumentProxy;
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class UBGraphicsScene;
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class UBGraphicsScene;
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class UBSceneCacheID
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{
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public:
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UBSceneCacheID()
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: documentProxy(0)
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, pageIndex(-1)
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{
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// NOOP
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}
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UBSceneCacheID(UBDocumentProxy* pDocumentProxy, int pPageIndex)
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{
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documentProxy = pDocumentProxy;
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pageIndex = pPageIndex;
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}
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UBDocumentProxy* documentProxy;
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int pageIndex;
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};
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inline bool operator==(const UBSceneCacheID &id1, const UBSceneCacheID &id2)
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{
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return id1.documentProxy == id2.documentProxy
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&& id1.pageIndex == id2.pageIndex;
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}
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inline uint qHash(const UBSceneCacheID &id)
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{
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return qHash(id.pageIndex);
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}
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class UBSceneCache : public QHash<UBSceneCacheID, UBGraphicsScene*>
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{
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public:
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UBSceneCache();
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virtual ~UBSceneCache();
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UBGraphicsScene* createScene(UBDocumentProxy* proxy, int pageIndex, bool useUndoRedoStack);
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void insert (UBDocumentProxy* proxy, int pageIndex, UBGraphicsScene* scene );
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bool contains(UBDocumentProxy* proxy, int pageIndex) const;
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UBGraphicsScene* value(UBDocumentProxy* proxy, int pageIndex);
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UBGraphicsScene* value(const UBSceneCacheID& key) const
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{
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return QHash<UBSceneCacheID, UBGraphicsScene*>::value(key);
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}
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void removeScene(UBDocumentProxy* proxy, int pageIndex);
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void removeAllScenes(UBDocumentProxy* proxy);
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void moveScene(UBDocumentProxy* proxy, int sourceIndex, int targetIndex);
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void shiftUpScenes(UBDocumentProxy* proxy, int startIncIndex, int endIncIndex);
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private:
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void internalMoveScene(UBDocumentProxy* proxy, int sourceIndex, int targetIndex);
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void dumpCacheContent();
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void compactCache();
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int mCachedSceneCount;
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QQueue<UBSceneCacheID> mCachedKeyFIFO;
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QHash<UBSceneCacheID, UBGraphicsScene::SceneViewState> mViewStates;
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};
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#endif // UBSCENECACHE_H
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