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engines/hpl1/engine/resources/ResourceManager.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#ifndef HPL_RESOURCEMANAGER_H
+#define HPL_RESOURCEMANAGER_H
+
+#include "hpl1/engine/system/SystemTypes.h"
+#include "common/stablemap.h"
+
+namespace hpl {
+
+class LowLevelResources;
+class LowLevelSystem;
+class cFileSearcher;
+class iResourceBase;
+
+typedef Common::StableMap<unsigned long, iResourceBase *> tResourceHandleMap;
+typedef tResourceHandleMap::iterator tResourceHandleMapIt;
+
+typedef Common::StableMap<tString, iResourceBase *> tResourceNameMap;
+typedef tResourceNameMap::iterator tResourceNameMapIt;
+
+typedef Common::List<iResourceBase *> tResourceBaseList;
+typedef tResourceBaseList::iterator tResourceBaseListIt;
+
+typedef cSTLMapIterator<iResourceBase *, tResourceNameMap, tResourceNameMapIt> cResourceBaseIterator;
+
+class iResourceManager {
+public:
+	iResourceManager(cFileSearcher *apFileSearcher, LowLevelResources *apLowLevelResources,
+					 LowLevelSystem *apLowLevelSystem);
+	virtual ~iResourceManager() {}
+
+	virtual iResourceBase *Create(const tString &asName) = 0;
+
+	iResourceBase *GetByName(const tString &asName);
+	iResourceBase *GetByHandle(unsigned long alHandle);
+
+	cResourceBaseIterator GetResourceBaseIterator();
+
+	void DestroyUnused(int alMaxToKeep);
+
+	virtual void Destroy(iResourceBase *apResource) = 0;
+	virtual void DestroyAll();
+
+	virtual void Unload(iResourceBase *apResource) = 0;
+
+	virtual void Update(float afTimeStep) {}
+
+protected:
+	unsigned long mlHandleCount;
+	tResourceNameMap m_mapNameResources;
+	tResourceHandleMap m_mapHandleResources;
+
+	cFileSearcher *mpFileSearcher;
+	LowLevelResources *mpLowLevelResources;
+	LowLevelSystem *mpLowLevelSystem;
+
+	void BeginLoad(const tString &asFile);
+	void EndLoad();
+
+	unsigned long mlTimeStart;
+
+	/**
+	 * Checks if a resource alllready is in the manager, else searches the resources.
+	 * \param &asName Name of the resource.
+	 * \param &asFilePath If the file is not in the manager, the path is put here. "" if there is no such file.
+	 * \return A pointer to the resource. NULL if not in manager.
+	 */
+	iResourceBase *FindLoadedResource(const tString &asName, tString &asFilePath);
+	void AddResource(iResourceBase *apResource, bool abLog = true);
+	void RemoveResource(iResourceBase *apResource);
+
+	unsigned long GetHandle();
+
+	tString GetTabs();
+	static int mlTabCount;
+};
+
+} // namespace hpl
+
+#endif // HPL_RESOURCEMANAGER_H