mirror of
https://github.com/libretro/scummvm.git
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139 lines
3.4 KiB
C++
139 lines
3.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef COMMON_HARDWARE_KEY_H
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#define COMMON_HARDWARE_KEY_H
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#include "common/scummsys.h"
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#ifdef ENABLE_KEYMAPPER
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#include "backends/keymapper/types.h"
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namespace Common {
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#define HWKEY_ID_SIZE (30)
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/**
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* Describes an available hardware key
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*/
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struct HardwareKey {
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/** unique id used for saving/loading to config */
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char hwKeyId[HWKEY_ID_SIZE];
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/** Human readable description */
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String description;
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/**
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* The KeyState that is generated by the back-end
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* when this hardware key is pressed.
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*/
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KeyState key;
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KeyType type;
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ActionType preferredAction;
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HardwareKey(const char *i, KeyState ky = KeyState(), String desc = "",
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KeyType typ = kGenericKeyType, ActionType prefAct = kGenericActionType)
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: key(ky), description(desc), type(typ), preferredAction(prefAct) {
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assert(i);
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strncpy(hwKeyId, i, HWKEY_ID_SIZE);
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}
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};
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/**
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* Simple class to encapsulate a device's set of HardwareKeys.
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* Each device should instantiate this and call addHardwareKey a number of times
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* in its constructor to define the device's available keys.
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*/
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class HardwareKeySet {
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public:
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virtual ~HardwareKeySet() {
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List<const HardwareKey*>::const_iterator it;
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for (it = _keys.begin(); it != _keys.end(); it++)
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delete *it;
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}
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void addHardwareKey(HardwareKey *key) {
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checkForKey(key);
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_keys.push_back(key);
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}
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const HardwareKey *findHardwareKey(const char *id) const {
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List<const HardwareKey*>::const_iterator it;
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for (it = _keys.begin(); it != _keys.end(); it++) {
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if (strncmp((*it)->hwKeyId, id, HWKEY_ID_SIZE) == 0)
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return (*it);
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}
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return 0;
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}
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const HardwareKey *findHardwareKey(const KeyState& keystate) const {
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List<const HardwareKey*>::const_iterator it;
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for (it = _keys.begin(); it != _keys.end(); it++) {
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if ((*it)->key == keystate)
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return (*it);
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}
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return 0;
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}
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const List<const HardwareKey*> &getHardwareKeys() const {
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return _keys;
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}
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uint size() const {
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return _keys.size();
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}
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private:
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void checkForKey(HardwareKey *key) {
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List<const HardwareKey*>::iterator it;
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for (it = _keys.begin(); it != _keys.end(); it++) {
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if (strncmp((*it)->hwKeyId, key->hwKeyId, HWKEY_ID_SIZE) == 0)
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error("Error adding HardwareKey '%s' - id of %s already in use!", key->description.c_str(), key->hwKeyId);
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else if ((*it)->key == key->key)
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error("Error adding HardwareKey '%s' - key already in use!", key->description.c_str());
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}
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}
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List<const HardwareKey*> _keys;
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};
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} // end of namespace Common
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#endif // #ifdef ENABLE_KEYMAPPER
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#endif // #ifndef COMMON_HARDWARE_KEY_H
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