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Diffstat (limited to 'base/plugins.h')
-rw-r--r-- | base/plugins.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/base/plugins.h b/base/plugins.h new file mode 100644 index 0000000000..8257bf1a53 --- /dev/null +++ b/base/plugins.h @@ -0,0 +1,83 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2001 Ludvig Strigeus + * Copyright (C) 2001-2003 The ScummVM project + * + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * $Header$ + * + */ + +#ifndef COMMON_PLUGINS_H +#define COMMON_PLUGINS_H + +#include "common/list.h" + +class Engine; +class GameDetector; +class OSystem; +struct TargetSettings; + +/** + * Abstract base class for the plugin system. + * Subclasses for this can be used to wrap both static and dynamic + * plugins. + */ +class Plugin { +public: + virtual void loadPlugin() {} + virtual void unloadPlugin() {} + + virtual const char *getName() const = 0; + virtual int getVersion() const = 0; + + virtual int countTargets() const; + virtual const TargetSettings *getTargets() const = 0; + virtual const TargetSettings *findTarget(const char *targetName) const; + + virtual Engine *createInstance(GameDetector *detector, OSystem *syst) const = 0; +}; + + +/** List of plugins. */ +typedef ScummVM::List<Plugin *> PluginList; + + +/** + * Instances of this class manage all plugins, including loading them, + * making wrapper objects of class Plugin available, and unloading them. + * + * @todo Add support for dynamic plugins (this may need additional API, e.g. for a plugin path) + */ +class PluginManager { +protected: + PluginList _plugins; + +public: + PluginManager(); + ~PluginManager(); + + void loadPlugins(); + void unloadPlugins(); + + const PluginList &getPlugins() { return _plugins; } +}; + +/** + * Global, shared plugin manager. + */ +extern PluginManager *g_pluginManager; + +#endif |