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lxqt-panel-packaging/plugin-volume/volumebutton.cpp

156 lines
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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXDE-Qt - a lightweight, Qt based, desktop toolset
* http://razor-qt.org
*
* Copyright: 2012 Razor team
* Authors:
* Johannes Zellner <webmaster@nebulon.de>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include "volumebutton.h"
#include "volumepopup.h"
#include "audiodevice.h"
#include <QSlider>
#include <QMouseEvent>
#include <QProcess>
#include <XdgIcon>
#include "../panel/ilxqtpanel.h"
#include "../panel/ilxqtpanelplugin.h"
VolumeButton::VolumeButton(ILxQtPanelPlugin *plugin, QWidget* parent):
QToolButton(parent),
mPlugin(plugin),
m_panel(plugin->panel()),
m_showOnClick(true),
m_muteOnMiddleClick(true)
{
// initial icon for button. It will be replaced after devices scan.
// In the worst case - no soundcard/pulse - is found it remains
// in the button but at least the button is not blank ("invisible")
handleStockIconChanged("dialog-error");
m_volumePopup = new VolumePopup(this);
m_popupHideTimer.setInterval(1000);
connect(this, SIGNAL(clicked()), this, SLOT(toggleVolumeSlider()));
connect(&m_popupHideTimer, SIGNAL(timeout()), this, SLOT(hideVolumeSlider()));
connect(m_volumePopup, SIGNAL(mouseEntered()), &m_popupHideTimer, SLOT(stop()));
connect(m_volumePopup, SIGNAL(mouseLeft()), &m_popupHideTimer, SLOT(start()));
connect(m_volumePopup, SIGNAL(launchMixer()), this, SLOT(handleMixerLaunch()));
connect(m_volumePopup, SIGNAL(stockIconChanged(QString)), this, SLOT(handleStockIconChanged(QString)));
}
VolumeButton::~VolumeButton()
{
}
void VolumeButton::setShowOnClicked(bool state)
{
if (m_showOnClick == state)
return;
m_showOnClick = state;
}
void VolumeButton::setMuteOnMiddleClick(bool state)
{
m_muteOnMiddleClick = state;
}
void VolumeButton::setMixerCommand(const QString &command)
{
m_mixerCommand = command;
}
void VolumeButton::enterEvent(QEvent *event)
{
if (!m_showOnClick)
showVolumeSlider();
m_popupHideTimer.stop();
}
void VolumeButton::leaveEvent(QEvent *event)
{
m_popupHideTimer.start();
}
void VolumeButton::wheelEvent(QWheelEvent *event)
{
m_volumePopup->handleWheelEvent(event);
}
void VolumeButton::mouseReleaseEvent(QMouseEvent *event)
{
if (event->button() == Qt::MidButton && m_muteOnMiddleClick) {
if (m_volumePopup->device()) {
m_volumePopup->device()->toggleMute();
return;
}
}
QToolButton::mouseReleaseEvent(event);
}
void VolumeButton::toggleVolumeSlider()
{
if (m_volumePopup->isVisible()) {
hideVolumeSlider();
} else {
showVolumeSlider();
}
}
void VolumeButton::showVolumeSlider()
{
if (m_volumePopup->isVisible())
return;
m_popupHideTimer.stop();
m_volumePopup->updateGeometry();
m_volumePopup->adjustSize();
QRect pos = mPlugin->calculatePopupWindowPos(m_volumePopup->size());
m_volumePopup->openAt(pos.topLeft(), Qt::TopLeftCorner);
m_volumePopup->activateWindow();
}
void VolumeButton::hideVolumeSlider()
{
// qDebug() << "hideVolumeSlider";
m_popupHideTimer.stop();
m_volumePopup->hide();
}
void VolumeButton::handleMixerLaunch()
{
QProcess::startDetached(m_mixerCommand);
}
void VolumeButton::handleStockIconChanged(const QString &iconName)
{
setIcon(XdgIcon::fromTheme(iconName));
}