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/*
# Copyright (c) 2010 - OpenSLX Project, Computer Center University of Freiburg
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# processWidget.cpp
	Widget to start/stop processes on a client. This widget is used in
	processesDialog.cpp as a tab in the QTabWidget
# -----------------------------------------------------------------------------
*/

#include "processesDialog.h"
#include "processWidget.h"
#include "ui_processWidget.h"

ProcessWidget::ProcessWidget(QWidget *parent, PVSClient *cl):
        QWidget(parent),
        prowui(new Ui::ProcessWidget)
{
	prowui->setupUi(this);

	client = cl;

	connect( prowui->startButton, SIGNAL( clicked()), this, SLOT( startProcess()));
    connect( prowui->refreshButton, SIGNAL( clicked()), this, SLOT( refrProcessList()));
    connect( prowui->stopButton, SIGNAL( clicked()), this, SLOT( stopProcess()));
    connect( client, SIGNAL( processVectorReady(bool)), this, SLOT( refrProcessList()));

    sendCommand("SHOWPROCESSES", "");
}

void ProcessWidget::startProcess()
{
    QMessageBox::StandardButton start = QMessageBox::question(0,
            tr("PVS Start Process"), tr("Do you want to start the process: ") + prowui->processLineEdit->text() +
            tr(" on User '") + client->getDesktopName() + tr("' ?"),
            QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);

    if (start ==  QMessageBox::Ok)
    {
    	sendCommand("STARTPROCESS", prowui->processLineEdit->text());
    	sendCommand("SHOWPROCESSES", "");
    }
    prowui->processLineEdit->clear();
}

void ProcessWidget::refrProcessList()
{
	for(int i=prowui->processTable->rowCount(); i == 0; i--)
	{
		prowui->processTable->removeRow(i);
	}
	prowui->processTable->setRowCount(0);
	QVector<QString> processes = client->getProcessesVector();

	for (int i=0; i<processes.size(); i++)
	{
		prowui->processTable->setRowCount(i+1);
		QStringList processesList = processes.at(i).split(QRegExp("<#>"));
		for (int j=0; j<processesList.size()&&j<3; j++)
		{
			prowui->processTable->setItem(i,j,new QTableWidgetItem(processesList.at(j),0));
		}
	}
	prowui->processTable->selectRow(0);
}

void ProcessWidget::stopProcess()
{
	if (prowui->processTable->rowCount() > 0)
	{
	    QMessageBox::StandardButton start = QMessageBox::question(0,
	            tr("PVS Start Process"), tr("Do you want to stop the process: ") + prowui->processTable->item(prowui->processTable->currentRow(),1)->text() +
	            tr(" on User '") + client->getDesktopName() + tr("' ?"),
	            QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);
	    if (start ==  QMessageBox::Ok)
	    {
	    	sendCommand("KILLPROCESS", prowui->processTable->item(prowui->processTable->currentRow(),0)->text());
	    	sendCommand("SHOWPROCESSES", "");
	    }
	}
}

void ProcessWidget::sendCommand(QString ident, QString message)
{
	client->sendMessage(PVSCOMMAND, ident, message);
}

ProcessWidget::~ProcessWidget()
{
    delete prowui;
}