/***********************************************************************
 *
 * Copyright (C) 2009 Graeme Gott <graeme@gottcode.org>
 *
 * 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 "clock.h"

#include <QBrush>
#include <QCursor>
#include <QFont>
#include <QPen>
#include <QSettings>
#include <QTimeLine>

Clock::Clock(QWidget* parent)
: QLabel(parent), m_clock(0, 0, 0), m_paused(true), m_stopped(true) {
	QFont f = font();
	f.setPixelSize(20);
	setFont(f);
	setCursor(Qt::PointingHandCursor);

	QPalette p = palette();
	p.setColor(foregroundRole(), Qt::white);
	setPalette(p);

	m_clock_timer = new QTimeLine(1000, this);
	connect(m_clock_timer, SIGNAL(finished()), this, SLOT(tick()));
}

//-----------------------------------------------------------------------------

void Clock::start() {
	m_paused = false;
	m_stopped = false;
	m_clock_timer->stop();
	m_clock = QTime(0, 0, 0);
	m_clock = m_clock.addMSecs(QSettings().value("Current/Time").toInt());
	updateText();
	m_clock_timer->start();
}

//-----------------------------------------------------------------------------

void Clock::stop() {
	m_stopped = true;
	m_clock_timer->stop();
	QSettings().remove("Current/Time");
	updateText();
}

//-----------------------------------------------------------------------------

void Clock::setLoading() {
	m_stopped = true;
	m_clock_timer->stop();
	setText(tr("Loading"));
}

//-----------------------------------------------------------------------------

void Clock::setPaused(bool paused) {
	m_paused = paused;
	if (m_clock_timer->state() != QTimeLine::NotRunning) {
		m_clock_timer->setPaused(paused);
	}
	if (!m_stopped) {
		updateText();
	}
}

//-----------------------------------------------------------------------------

void Clock::mousePressEvent(QMouseEvent* event) {
	QLabel::mousePressEvent(event);
	emit togglePaused();
}

//-----------------------------------------------------------------------------

void Clock::tick() {
	updateTime();
	if (!m_stopped) {
		m_clock_timer->start();
	}
}

//-----------------------------------------------------------------------------

void Clock::updateTime() {
	m_clock = m_clock.addMSecs(m_clock_timer->currentTime());
	QSettings().setValue("Current/Time", QTime(0, 0, 0).msecsTo(m_clock));
	updateText();
}

//-----------------------------------------------------------------------------

void Clock::updateText() {
	setText(!m_paused ? m_clock.toString("hh:mm:ss") : tr("Paused"));
}
