system_control.cpp

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/*
 The Real-Time eXperiment Interface (RTXI)
 Copyright (C) 2011 Georgia Institute of Technology, University of Utah, Weill Cornell Medical College

 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 <debug.h>
#include <main_window.h>
#include <mutex.h>
#include <system_control.h>
#include <system_control_panel.h>

extern "C" Plugin::Object *createRTXIPlugin(void *)
{
 return SystemControl::getInstance();
}

SystemControl::SystemControl(void)
{
 MainWindow::getInstance()->createSystemMenuItem("Control Panel",this,SLOT(createControlPanel(void)));
}

SystemControl::~SystemControl(void)
{
 while(panelList.size())
 delete panelList.front();
 instance = 0;
}

void SystemControl::createControlPanel(void)
{
 SystemControlPanel *panel = new SystemControlPanel(MainWindow::getInstance()->centralWidget());
 panelList.push_back(panel);
}

void SystemControl::removeControlPanel(SystemControlPanel *panel)
{
 panelList.remove(panel);
}

static Mutex mutex;
SystemControl *SystemControl::instance = 0;

SystemControl *SystemControl::getInstance(void)
{
 if(instance)
 return instance;

 /*************************************************************************
 * Seems like alot of hoops to jump through, but allocation isn't *
 * thread-safe. So effort must be taken to ensure mutual exclusion. *
 *************************************************************************/

 Mutex::Locker lock(&::mutex);
 if(!instance)
 instance = new SystemControl();

 return instance;
}