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engines/parallaction/gui.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 PARALLACTION_GUI_H
+#define PARALLACTION_GUI_H
+
+#include "common/system.h"
+#include "common/hashmap.h"
+
+#include "parallaction/input.h"
+#include "parallaction/parallaction.h"
+#include "parallaction/sound.h"
+
+
+namespace Parallaction {
+
+class MenuInputState;
+
+class MenuInputHelper {
+	typedef	Common::HashMap<Common::String, MenuInputState *> StateMap;
+
+	StateMap	_map;
+	MenuInputState	*_state;
+	MenuInputState *_newState;
+
+public:
+	MenuInputHelper() : _state(0), _newState(0) {
+	}
+
+	~MenuInputHelper();
+
+	void setState(const Common::String &name) {
+		// bootstrap routine
+		_newState = getState(name);
+		assert(_newState);
+	}
+
+	void addState(const Common::String &name, MenuInputState *state) {
+		_map.setVal(name, state);
+	}
+
+	MenuInputState *getState(const Common::String &name) {
+		return _map[name];
+	}
+
+	bool run();
+};
+
+class MenuInputState {
+
+protected:
+	MenuInputHelper *_helper;
+
+public:
+	MenuInputState(const Common::String &name, MenuInputHelper *helper) : _helper(helper), _name(name) {
+		debugC(3, kDebugExec, "MenuInputState(%s)", name.c_str());
+		_helper->addState(name, this);
+	}
+
+	Common::String	_name;
+
+	virtual ~MenuInputState() { }
+
+	virtual MenuInputState* run() = 0;
+	virtual void enter() = 0;
+};
+
+
+} // namespace Parallaction
+
+#endif