Clementine-audio-player-Mac.../src/trackslider.cpp

129 lines
3.3 KiB
C++

/* This file is part of Clementine.
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "trackslider.h"
TrackSlider::TrackSlider(QWidget* parent)
: QWidget(parent),
setting_value_(false)
{
ui_.setupUi(this);
QFont font("Courier");
ui_.elapsed->setFont(font);
ui_.remaining->setFont(font);
UpdateLabelWidth();
connect(ui_.slider, SIGNAL(sliderMoved(int)), SIGNAL(ValueChanged(int)));
connect(ui_.slider, SIGNAL(valueChanged(int)), SLOT(ValueMaybeChanged(int)));
}
void TrackSlider::UpdateLabelWidth() {
// We set the label's minimum size so it won't resize itself when the user
// is dragging the slider.
UpdateLabelWidth(ui_.elapsed, "0:00:00");
UpdateLabelWidth(ui_.remaining, "-0:00:00");
}
void TrackSlider::UpdateLabelWidth(QLabel* label, const QString& text) {
QString old_text = label->text();
label->setText(text);
label->setMinimumWidth(0);
int width = label->sizeHint().width();
label->setText(old_text);
label->setMinimumWidth(width);
}
QSize TrackSlider::sizeHint() const {
int width = 500;
width += ui_.elapsed->sizeHint().width();
width += ui_.remaining->sizeHint().width();
int height = qMax(ui_.slider->sizeHint().height(), ui_.elapsed->sizeHint().height());
return QSize(width, height);
}
void TrackSlider::SetValue(int elapsed, int total) {
setting_value_ = true; // This is so we don't emit from QAbstractSlider::valueChanged
ui_.slider->setMaximum(total);
ui_.slider->setValue(elapsed);
setting_value_ = false;
UpdateTimes(elapsed);
}
void TrackSlider::UpdateTimes(int elapsed) {
ui_.elapsed->setText(PrettyTime(elapsed));
ui_.remaining->setText("-" + PrettyTime(ui_.slider->maximum() - elapsed));
setEnabled(true);
}
void TrackSlider::SetStopped() {
setEnabled(false);
ui_.elapsed->setText("0:00:00");
ui_.remaining->setText("0:00:00");
setting_value_ = true;
ui_.slider->setValue(0);
setting_value_ = false;
}
QString TrackSlider::PrettyTime(int seconds) {
// last.fm sometimes gets the track length wrong, so you end up with
// negative times.
seconds = qAbs(seconds);
int hours = seconds / (60*60);
int minutes = (seconds / 60) % 60;
seconds %= 60;
QString ret;
if (hours)
ret.sprintf("%d:%02d:%02d", hours, minutes, seconds);
else
ret.sprintf("%d:%02d", minutes, seconds);
return ret;
}
void TrackSlider::SetCanSeek(bool can_seek) {
ui_.slider->setEnabled(can_seek);
}
void TrackSlider::ValueMaybeChanged(int value) {
if (setting_value_)
return;
UpdateTimes(value);
emit ValueChanged(value);
}
bool TrackSlider::event(QEvent* e) {
switch (e->type()) {
case QEvent::ApplicationFontChange:
case QEvent::StyleChange:
UpdateLabelWidth();
break;
default:
break;
}
return false;
}