scummvm/backends/common/keymap.cpp
Stephen Kennedy 0b8203b0e5 More WIP development of Keymap class
svn-id: r33113
2008-07-19 19:12:49 +00:00

83 lines
No EOL
1.9 KiB
C++

#include "backends/common/keymap.h"
namespace Common {
Keymap::Keymap(const Keymap& km) : _actions(km._actions), _keymap() {
init();
for (uint i = 0; i < _actions.size(); i++) {
if (_actions[i].hwKey) {
_keymap[_actions[i].hwKey->key] = &_actions[i];
}
}
}
void Keymap::init() {
_actions.reserve(20);
}
void Keymap::addAction(const UserAction& action) {
if (findUserAction(action.id))
error("UserAction with id %d already in KeyMap!\n", action.id);
_actions.push_back(action);
_actions[_actions.size()-1].hwKey = 0;
}
void Keymap::mapKeyToAction(UserAction *action, HardwareKey *key) {
for (uint i = 0; i < _actions.size(); i++) {
if (&_actions[i] == action) {
internalMapKey(action, key);
return;
}
}
error("UserAction not contained in KeyMap\n");
}
void Keymap::mapKeyToAction(int32 id, HardwareKey *key) {
UserAction *act = findUserAction(id);
if (act)
internalMapKey(act, key);
}
void Keymap::internalMapKey(UserAction *action, 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->hwKey = 0;
action->hwKey = hwKey;
_keymap[hwKey->key] = action;
}
const UserAction *Keymap::getUserAction(int32 id) const {
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(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