Clementine-audio-player-Mac.../src/widgets/tracksliderslider.cpp

105 lines
3.3 KiB
C++

/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
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 "tracksliderpopup.h"
#include "tracksliderslider.h"
#include "core/utilities.h"
#include <QMouseEvent>
#include <QStyle>
#include <QStyleOptionSlider>
#include <QtDebug>
TrackSliderSlider::TrackSliderSlider(QWidget* parent)
: QSlider(parent),
popup_(new TrackSliderPopup(window())),
mouse_hover_seconds_(0)
{
setMouseTracking(true);
connect(this, SIGNAL(valueChanged(int)), SLOT(UpdateDeltaTime()));
}
void TrackSliderSlider::mousePressEvent(QMouseEvent* e) {
// QSlider asks QStyle which mouse button should do what (absolute move or
// page step). We force our own behaviour here because it makes more sense
// for a music player IMO.
Qt::MouseButton new_button = e->button();
if (e->button() == Qt::LeftButton) {
int abs_buttons = style()->styleHint(QStyle::SH_Slider_AbsoluteSetButtons);
if (abs_buttons & Qt::LeftButton)
new_button = Qt::LeftButton;
else if (abs_buttons & Qt::MidButton)
new_button = Qt::MidButton;
else if (abs_buttons & Qt::RightButton)
new_button = Qt::RightButton;
}
QMouseEvent new_event(e->type(), e->pos(), new_button, new_button, e->modifiers());
QSlider::mousePressEvent(&new_event);
if (new_event.isAccepted())
e->accept();
}
void TrackSliderSlider::mouseReleaseEvent(QMouseEvent* e) {
QSlider::mouseReleaseEvent(e);
}
void TrackSliderSlider::mouseMoveEvent(QMouseEvent* e) {
QSlider::mouseMoveEvent(e);
// Borrowed from QSliderPrivate::pixelPosToRangeValue
QStyleOptionSlider opt;
initStyleOption(&opt);
QRect gr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, this);
QRect sr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
int slider_length = sr.width();
int slider_min = gr.x();
int slider_max = gr.right() - slider_length + 1;
mouse_hover_seconds_ = QStyle::sliderValueFromPosition(
minimum(), maximum(), e->x() - slider_length/2 - slider_min + 1,
slider_max - slider_min);
popup_->SetText(Utilities::PrettyTime(mouse_hover_seconds_));
UpdateDeltaTime();
popup_->SetPopupPosition(mapTo(window(), QPoint(
e->x(), rect().center().y())));
}
void TrackSliderSlider::enterEvent(QEvent* e) {
QSlider::enterEvent(e);
if (isEnabled()) {
popup_->show();
}
}
void TrackSliderSlider::leaveEvent(QEvent* e) {
QSlider::leaveEvent(e);
popup_->hide();
}
void TrackSliderSlider::UpdateDeltaTime() {
if (popup_->isVisible()) {
int delta_seconds = mouse_hover_seconds_ - value();
popup_->SetSmallText(Utilities::PrettyTimeDelta(delta_seconds));
}
}