e732186724
This class can be used to get messages to display on the OSD from any thread. Those messages are then passed to the backend in the graphic thread.
59 lines
1.7 KiB
C++
59 lines
1.7 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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*/
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#include "common/osd_message_queue.h"
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#include "common/system.h"
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namespace Common {
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DECLARE_SINGLETON(OSDMessageQueue);
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OSDMessageQueue::OSDMessageQueue() : _lastUpdate(0) {
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g_system->getEventManager()->getEventDispatcher()->registerSource(this, false);
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}
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OSDMessageQueue::~OSDMessageQueue() {
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g_system->getEventManager()->getEventDispatcher()->unregisterSource(this);
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}
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void OSDMessageQueue::addMessage(const char *msg) {
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_mutex.lock();
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_messages.push(msg);
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_mutex.unlock();
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}
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bool OSDMessageQueue::pollEvent(Common::Event &event) {
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_mutex.lock();
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if (!_messages.empty()) {
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uint t = g_system->getMillis();
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if (t - _lastUpdate >= kMinimumDelay) {
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_lastUpdate = t;
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String msg = _messages.pop();
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g_system->displayMessageOnOSD(msg.c_str());
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}
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}
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_mutex.unlock();
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return false;
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}
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} // End of namespace Common
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