1 files changed, 99 insertions, 0 deletions
diff --git a/backends/common/keymap.cpp b/backends/common/keymap.cpp
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+++ b/backends/common/keymap.cpp
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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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+* $URL$
+* $Id$
+*
+*/
+
+#include "backends/common/keymap.h"
+#include "backends/common/hardware-key.h"
+
+namespace Common {
+
+Keymap::Keymap(const Keymap& km) : _actions(km._actions), _keymap() {
+	init();
+	for (uint i = 0; i < _actions.size(); i++) {
+		const HardwareKey *hwKey = _actions[i].getMappedKey();
+		if (hwKey) {
+			_keymap[hwKey->key] = &_actions[i];
+		}
+	}
+}
+
+void Keymap::init() {
+	_actions.reserve(20);
+}
+
+void Keymap::addAction(UserAction& action) {
+	if (findUserAction(action.id))
+		error("UserAction with id %d already in KeyMap!", action.id);
+	action.setParent(this);
+	_actions.push_back(action);
+}
+
+void Keymap::registerMapping(UserAction *action, const HardwareKey *hwKey) {
+	HashMap<KeyState, UserAction*>::iterator it;
+	it = _keymap.find(hwKey->key);
+	// if key is already mapped to an action then un-map it
+	if (it != _keymap.end())
+		it->_value->mapKey(0);
+
+	_keymap[hwKey->key] = action;
+}
+
+void Keymap::unregisterMapping(UserAction *action) {
+	const HardwareKey *hwKey = action->getMappedKey();
+	if (hwKey)
+		_keymap[hwKey->key] = 0;
+}
+
+UserAction *Keymap::getUserAction(int32 id) {
+	return findUserAction(id);
+}
+
+UserAction *Keymap::findUserAction(int32 id) {
+	Array<UserAction>::iterator it;
+	for (it = _actions.begin(); it != _actions.end(); it++) {
+		if (it->id == id)
+			return &*it;
+	}
+	return 0;
+}
+
+const UserAction *Keymap::findUserAction(int32 id) const {
+	Array<UserAction>::const_iterator it;
+	for (it = _actions.begin(); it != _actions.end(); it++) {
+		if (it->id == id)
+			return &*it;
+	}
+	return 0;
+}
+
+UserAction *Keymap::getMappedAction(const KeyState& ks) const {
+	HashMap<KeyState, UserAction*>::iterator it;
+	it = _keymap.find(ks);
+	if (it == _keymap.end())
+		return 0;
+	else
+		return it->_value;
+}
+
+} // end of namespace Common