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HardKeyManager.cpp

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00001 /*********************************************************************************
00002  *
00003  * Razor! Engine - A modular C++ presentation engine
00004  *
00005  * $Id$
00006  *
00007  * Copyright (c) 2000 Tilo Christ. All Rights Reserved.
00008  *
00009  * This library is free software; you can redistribute it and/or
00010  * modify it under the terms of the GNU Lesser General Public
00011  * License as published by the Free Software Foundation; either
00012  * version 2.1 of the License, or (at your option) any later version.
00013  *
00014  * This library is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017  * Lesser General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU Lesser General Public
00020  * License along with this library; if not, write to the Free Software
00021  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022  *
00023  **********************************************************************************/
00024 
00025 
00026 
00027 #include "HardKeyManager.h"
00028 
00029 
00030 void HardKeyManager::init()
00031 {
00032     // Get the key repeat rate for when we want to restore it after the game.
00033     KeyRates(false, &oldInitDelay, &oldPeriod, &oldDoubleTapDelay, &oldQueueAhead);
00034         
00035     setMask(keysAllowedMask);
00036 }
00037 
00038 
00039 void HardKeyManager::destroy() 
00040 {
00041     releaseHardKeys();
00042 }
00043 
00044     
00045 void HardKeyManager::captureHardKeys()
00046 {
00047     // Set the keys we poll to not generate events.  This saves CPU cycles.
00048     KeySetMask( ~mask );
00049 }
00050     
00051 
00052 void HardKeyManager::releaseHardKeys()
00053 {
00054     KeySetMask(keyBitsAll);
00055     KeyRates(true, &oldInitDelay, &oldPeriod, &oldDoubleTapDelay, &oldQueueAhead);
00056 }
00057         
00058 
00059 UInt32 HardKeyManager::getCurrentState()
00060 {
00061     return KeyCurrentState();
00062 }
00063     
00064 
00065 void HardKeyManager::setMask(UInt32 mask)
00066 {
00067     HardKeyManager::mask = mask;
00068 }
00069 
00070     
00071 UInt32 HardKeyManager::mask;
00072 
00073 UInt16 HardKeyManager::oldInitDelay;
00074 UInt16 HardKeyManager::oldPeriod;
00075 UInt16 HardKeyManager::oldDoubleTapDelay;
00076 Boolean HardKeyManager::oldQueueAhead;

Razor! Engine Developer's Guide. Copyright © by Tilo Christ. All Rights Reserved. Last updated: 4 Nov 2000