/*
    This file is part of Mitsuba, a physically based rendering system.

    Copyright (c) 2007-2011 by Wenzel Jakob and others.

    Mitsuba is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License Version 3
    as published by the Free Software Foundation.

    Mitsuba 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 "ui_updatedlg.h"
#include "updatedlg.h"

UpdateDialog::UpdateDialog(QWidget *parent, const Version &local,
			const Version &remote) : QDialog(parent),
	ui(new Ui::UpdateDialog) {
	ui->setupUi(this);
	m_remoteVersion = remote.toString().c_str();
    ui->versionLabel->setText(QApplication::translate("UpdateDialog", 
			"Version %1 has been released (you are using %2). Would you like to visit the download page?", 
			0, QApplication::UnicodeUTF8).arg(m_remoteVersion).arg(local.toString().c_str()));
	ui->changeView->setHtml("Loading change log ..");
	m_networkManager = new QNetworkAccessManager(this);
	connect(m_networkManager, SIGNAL(finished(QNetworkReply *)), 
			this, SLOT(onNetworkFinished(QNetworkReply *)));
	m_networkReply = m_networkManager->get(QNetworkRequest(QUrl("http://www.mitsuba-renderer.org/changelog.html")));
}

void UpdateDialog::onNetworkFinished(QNetworkReply *reply) {
	if (reply->error() == QNetworkReply::NoError)
		ui->changeView->setHtml(QString(reply->readAll()));
	else
		ui->changeView->setHtml("Unable to load the change log!");
	m_networkReply = NULL;
}

UpdateDialog::~UpdateDialog() {
	if (m_networkReply)
		m_networkReply->abort();
	delete ui;
}
	
void UpdateDialog::on_skipButton_clicked() {
	QSettings settings("mitsuba-renderer.org", "qtgui");
	settings.setValue("ignoredVersion", m_remoteVersion);
	accept();
}

void UpdateDialog::on_remindButton_clicked() {
	accept();
}

void UpdateDialog::on_downloadButton_clicked() {
	QDesktopServices::openUrl(QUrl("http://www.mitsuba-renderer.org/download.html"));
	accept();
}

void UpdateDialog::changeEvent(QEvent *e) {
	QDialog::changeEvent(e);
	switch (e->type()) {
	case QEvent::LanguageChange:
		ui->retranslateUi(this);
		break;
	default:
		break;
	}
}