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/*
* volumebutton.cc
* Copyright 2014 William Pitcock
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions, and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions, and the following disclaimer in the documentation
* provided with the distribution.
*
* This software is provided "as is" and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising from
* the use of this software.
*/
#include "libaudqt.h"
#include <QFrame>
#include <QIcon>
#include <QSlider>
#include <QToolButton>
#include <QVBoxLayout>
#include <QWheelEvent>
#include <libaudcore/drct.h>
#include <libaudcore/hook.h>
namespace audqt {
class VolumeButton : public QToolButton
{
public:
VolumeButton (QWidget * parent = nullptr);
private:
void updateIcon (int val);
void updateVolume ();
void showSlider ();
void setVolume (int val);
QToolButton * newSliderButton (int delta);
void wheelEvent (QWheelEvent * e);
QSlider * m_slider;
QFrame * m_container;
};
VolumeButton::VolumeButton (QWidget * parent) :
QToolButton (parent)
{
setFocusPolicy (Qt::NoFocus);
m_container = new QFrame (this, Qt::Popup);
m_container->setFrameShape (QFrame::StyledPanel);
auto layout = new QVBoxLayout (m_container);
layout->setSpacing (0);
layout->setMargin (2);
m_slider = new QSlider (Qt::Vertical, this);
m_slider->setRange (0, 100);
m_slider->setSingleStep (2);
m_slider->setPageStep (20);
layout->addWidget (newSliderButton (5));
layout->addWidget (m_slider);
layout->addWidget (newSliderButton (-5));
int val = aud_drct_get_volume_main ();
m_slider->setValue (val);
updateIcon (val);
connect (this, & QAbstractButton::clicked, this, & VolumeButton::showSlider);
connect (m_slider, & QAbstractSlider::valueChanged, this, & VolumeButton::setVolume);
auto timer = new Timer<VolumeButton> (TimerRate::Hz4, this, & VolumeButton::updateVolume);
connect (this, & QObject::destroyed, [timer] () { delete timer; });
timer->start ();
}
void VolumeButton::updateIcon (int val)
{
if (val == 0)
setIcon (QIcon::fromTheme ("audio-volume-muted"));
else if (val > 0 && val < 35)
setIcon (QIcon::fromTheme ("audio-volume-low"));
else if (val >= 35 && val < 70)
setIcon (QIcon::fromTheme ("audio-volume-medium"));
else if (val >= 70)
setIcon (QIcon::fromTheme ("audio-volume-high"));
setToolTip (QString ("%1 %").arg (val));
}
void VolumeButton::updateVolume ()
{
if (m_slider->isSliderDown ())
return;
int val = aud_drct_get_volume_main ();
if (val != m_slider->value ())
{
disconnect (m_slider, nullptr, this, nullptr);
m_slider->setValue (val);
updateIcon (val);
connect (m_slider, & QAbstractSlider::valueChanged, this, & VolumeButton::setVolume);
}
}
void VolumeButton::showSlider ()
{
QSize button_size = sizeHint ();
QSize container_size = m_container->sizeHint ();
int dx = container_size.width () / 2 - button_size.width () / 2;
int dy = container_size.height () / 2 - button_size.height () / 2;
QPoint pos = mapToGlobal (QPoint (0, 0));
pos += QPoint (-dx, -dy);
m_container->move (pos);
window_bring_to_front (m_container);
}
void VolumeButton::setVolume (int val)
{
aud_drct_set_volume_main (val);
updateIcon (val);
}
QToolButton * VolumeButton::newSliderButton (int delta)
{
auto button = new QToolButton (this);
button->setText (delta < 0 ? "-" : "+");
button->setAutoRaise (true);
button->setSizePolicy (QSizePolicy::Ignored, QSizePolicy::Preferred);
connect (button, & QAbstractButton::clicked, [this, delta] () {
int val = aud_drct_get_volume_main ();
m_slider->setValue (val + delta);
});
return button;
}
void VolumeButton::wheelEvent (QWheelEvent * e)
{
int val = m_slider->value ();
int y = e->angleDelta ().y ();
if (y < 0)
m_slider->setValue (-- val);
else
m_slider->setValue (++ val);
}
EXPORT QToolButton * volume_button_new (QWidget * parent)
{
return new VolumeButton (parent);
}
} // namespace audqt
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