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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/osd_message_queue.h"
#include "common/system.h"
namespace Common {
DECLARE_SINGLETON(OSDMessageQueue);
OSDMessageQueue::OSDMessageQueue() : _lastUpdate(0) {
}
OSDMessageQueue::~OSDMessageQueue() {
g_system->getEventManager()->getEventDispatcher()->unregisterSource(this);
}
void OSDMessageQueue::registerEventSource() {
g_system->getEventManager()->getEventDispatcher()->registerSource(this, false);
}
void OSDMessageQueue::addMessage(const Common::U32String &msg) {
_mutex.lock();
_messages.push(msg);
_mutex.unlock();
}
bool OSDMessageQueue::pollEvent(Common::Event &event) {
_mutex.lock();
if (!_messages.empty()) {
uint t = g_system->getMillis(true);
if (t - _lastUpdate >= kMinimumDelay) {
_lastUpdate = t;
Common::U32String msg = _messages.pop();
g_system->displayMessageOnOSD(msg);
}
}
_mutex.unlock();
return false;
}
} // End of namespace Common
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