148 lines
3.9 KiB
C++
148 lines
3.9 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2013 Craig Drummond <craig.p.drummond@gmail.com>
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*
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* ----
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "timeslider.h"
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#include "song.h"
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#include <QLabel>
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#include <QBoxLayout>
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#include <QProxyStyle>
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#include <QTimer>
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#include <QApplication>
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class ProxyStyle : public QProxyStyle
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{
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public:
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ProxyStyle()
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: QProxyStyle()
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{
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setBaseStyle(qApp->style());
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}
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int styleHint(StyleHint stylehint, const QStyleOption *opt, const QWidget *widget, QStyleHintReturn *returnData) const
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{
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if (QStyle::SH_Slider_AbsoluteSetButtons==stylehint) {
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return Qt::LeftButton|QProxyStyle::styleHint(stylehint, opt, widget, returnData);
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} else {
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return QProxyStyle::styleHint(stylehint, opt, widget, returnData);
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}
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}
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};
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TimeSlider::TimeSlider(QWidget *p)
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: QWidget(p)
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, timer(0)
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, lastVal(0)
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{
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label=new QLabel(this);
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slider=new QSlider(this);
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label->setAlignment((Qt::RightToLeft==layoutDirection() ? Qt::AlignRight : Qt::AlignLeft)|Qt::AlignVCenter);
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QBoxLayout *layout=new QBoxLayout(QBoxLayout::TopToBottom, this);
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layout->setSpacing(0);
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layout->setMargin(0);
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layout->addWidget(label);
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layout->addWidget(slider);
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slider->setPageStep(0);
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connect(slider, SIGNAL(sliderPressed()), this, SLOT(pressed()));
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connect(slider, SIGNAL(sliderReleased()), this, SLOT(released()));
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connect(slider, SIGNAL(valueChanged(int)), this, SLOT(updateTimes()));
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slider->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
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// Set minimum height to help with some Gtk themes.
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// BUG:179
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slider->setMinimumHeight(24);
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label->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
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setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
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slider->setFocusPolicy(Qt::NoFocus);
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slider->setStyle(new ProxyStyle());
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}
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void TimeSlider::startTimer()
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{
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if (!timer) {
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timer=new QTimer(this);
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timer->setInterval(1000);
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connect(timer, SIGNAL(timeout()), this, SLOT(updatePos()));
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}
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startTime.restart();
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lastVal=value();
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timer->start();
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}
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void TimeSlider::stopTimer()
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{
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if (timer) {
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timer->stop();
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}
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}
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void TimeSlider::setValue(int v)
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{
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startTime.restart();
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lastVal=v;
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slider->setValue(v);
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updateTimes();
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}
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void TimeSlider::setRange(int min, int max)
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{
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slider->setRange(min, max);
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slider->setValue(min);
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label->setStyleSheet(min==max ? QLatin1String("QLabel { color : transparent; }") : QString());
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updateTimes();
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}
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void TimeSlider::clearTimes()
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{
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stopTimer();
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lastVal=0;
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slider->setValue(0);
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label->setText(Song::formattedTime(0)+" / "+Song::formattedTime(0));
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}
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void TimeSlider::updateTimes()
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{
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if (slider->value()<172800 && slider->value() != slider->maximum()) {
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label->setText(Song::formattedTime(slider->value())+" / "+Song::formattedTime(slider->maximum()));
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}
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}
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void TimeSlider::updatePos()
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{
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int elapsed=(startTime.elapsed()/1000.0)+0.5;
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slider->setValue(lastVal+elapsed);
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}
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void TimeSlider::pressed()
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{
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if (timer) {
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timer->stop();
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}
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}
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void TimeSlider::released()
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{
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if (timer) {
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timer->start();
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}
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emit sliderReleased();
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}
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