/*
 * Cantata
 *
 * Copyright (c) 2011-2012 Craig Drummond <craig.p.drummond@gmail.com>
 *
 * ----
 *
 * 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 2 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; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "timeslider.h"
#include <QtCore/QTimer>

TimeSlider::TimeSlider(QWidget *p)
    : QSlider(p)
    , timer(0)
    , lastVal(0)
{
    connect(this, SIGNAL(sliderPressed()), this, SLOT(pressed()));
    connect(this, SIGNAL(sliderReleased()), this, SLOT(released()));
}

void TimeSlider::startTimer()
{
    if (!timer) {
        timer=new QTimer(this);
        timer->setInterval(1000);
        connect(timer, SIGNAL(timeout()), this, SLOT(updatePos()));
    }
    startTime.restart();
    lastVal=value();
    timer->start();
}

void TimeSlider::stopTimer()
{
    if (timer) {
        timer->stop();
    }
}

void TimeSlider::setValue(int v)
{
    startTime.restart();
    lastVal=v;
    QSlider::setValue(v);
}

void TimeSlider::updatePos()
{
    int elapsed=(startTime.elapsed()/1000.0)+0.5;
    QSlider::setValue(lastVal+elapsed);
}

void TimeSlider::pressed()
{
    if (timer) {
        timer->stop();
    }
}

void TimeSlider::released()
{
    if (timer) {
        timer->start();
    }
}