ResidualVM logo ResidualVM website - Forums - Contact us BuildBot - Doxygen - Wiki curved edge

osd_message_queue.cpp

Go to the documentation of this file.
00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #include "common/osd_message_queue.h"
00024 #include "common/system.h"
00025 
00026 namespace Common {
00027 
00028 DECLARE_SINGLETON(OSDMessageQueue);
00029 
00030 OSDMessageQueue::OSDMessageQueue() : _lastUpdate(0) {
00031 }
00032 
00033 OSDMessageQueue::~OSDMessageQueue() {
00034     g_system->getEventManager()->getEventDispatcher()->unregisterSource(this);
00035 }
00036 
00037 void OSDMessageQueue::registerEventSource() {
00038     g_system->getEventManager()->getEventDispatcher()->registerSource(this, false);
00039 }
00040 
00041 void OSDMessageQueue::addMessage(const char *msg) {
00042     _mutex.lock();
00043     _messages.push(msg);
00044     _mutex.unlock();
00045 }
00046 
00047 bool OSDMessageQueue::pollEvent(Common::Event &event) {
00048     _mutex.lock();
00049     if (!_messages.empty()) {
00050         uint t = g_system->getMillis();
00051         if (t - _lastUpdate >= kMinimumDelay) {
00052             _lastUpdate = t;
00053             String msg = _messages.pop();
00054             g_system->displayMessageOnOSD(msg.c_str());
00055         }
00056     }
00057     _mutex.unlock();
00058 
00059     return false;
00060 }
00061 
00062 } // End of namespace Common


Generated on Sat Mar 23 2019 05:01:54 for ResidualVM by doxygen 1.7.1
curved edge   curved edge