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engines/titanic/support/files_manager.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/>.
+ *
+ */
+
+#ifndef TITANIC_FILES_MANAGER_H
+#define TITANIC_FILES_MANAGER_H
+
+#include "common/hashmap.h"
+#include "titanic/core/list.h"
+#include "titanic/support/screen_manager.h"
+
+namespace Titanic {
+
+enum ResourceFlag { FLAG_COMPRESSED = 1 };
+
+class TitanicEngine;
+class CGameManager;
+
+class CFilesManagerList : public List<ListItem> {
+};
+
+class CFilesManager {
+	struct ResourceEntry {
+		uint _offset;
+		uint _size;
+		uint _flags;
+
+		ResourceEntry() : _offset(0), _size(0), _flags(0) {}
+		ResourceEntry(uint offset, uint size, uint flags) :
+			_offset(offset), _size(size), _flags(flags) {}
+	};
+	typedef Common::HashMap<Common::String, ResourceEntry> ResourceHash;
+private:
+	TitanicEngine *_vm;
+	CGameManager *_gameManager;
+	Common::File _datFile;
+	ResourceHash _resources;
+	CFilesManagerList _list;
+	int _drive;
+	const CString _assetsPath;
+	int _version;
+public:
+	CFilesManager(TitanicEngine *vm);
+	~CFilesManager();
+
+	/**
+	 * Opens up the titanic.dat support file and loads it's index
+	 */
+	bool loadResourceIndex();
+
+	/**
+	 * Sets the game manager
+	 */
+	void setGameManager(CGameManager *gameManager) {
+		_gameManager = gameManager;
+	}
+
+	/**
+	 * Returns true if a file of the given name exists
+	 */
+	static bool fileExists(const CString &name);
+
+	/**
+	 * Scans for a file with a matching name
+	 */
+	bool scanForFile(const CString &name);
+
+	/**
+	 * Handles displaying a load drive view if necessary
+	 */
+	void loadDrive();
+
+	/**
+	 * Shows a dialog for inserting a new CD
+	 */
+	void insertCD(CScreenManager *screenManager);
+
+	/**
+	 * Resets the view being displayed
+	 */
+	void resetView();
+
+	/**
+	 * Preloads and caches a file for access shortly
+	 */
+	void preload(const CString &name);
+
+	/**
+	 * Get a resource from the executable
+	 */
+	Common::SeekableReadStream *getResource(const CString &str);
+};
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_FILES_MANAGER_H */