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/*******************************************************************
* osdwidget.cpp
* Copyright 2009 Aurélien Gâteau <agateau@kde.org>
* Copyright 2009 Dario Andres Rodriguez <andresbajotierra@gmail.com>
* Copyright 2009 Christian Esken <christian.esken@arcor.de>
*
* This program 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 2 of
* the License, or (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************/
#include "gui/osdwidget.h"
// Qt
#include <QIcon>
#include <QGraphicsLinearLayout>
#include <QPainter>
#include <QTimer>
#include <QLabel>
// KDE
#include <KWindowSystem>
#include <Plasma/Svg>
#include <Plasma/Label>
#include <Plasma/Meter>
#include <Plasma/Theme>
#include <Plasma/WindowEffects>
#include "core/ControlManager.h"
#include <core/mixer.h>
OSDWidget::OSDWidget(QWidget * parent)
: Plasma::Dialog(parent, Qt::ToolTip),
m_scene(new QGraphicsScene(this)),
m_container(new QGraphicsWidget),
m_iconLabel(new Plasma::Label),
m_volumeLabel(new Plasma::Label),
m_meter(new Plasma::Meter),
m_hideTimer(new QTimer(this))
{
//Setup the window properties
KWindowSystem::setState(winId(), NET::KeepAbove);
KWindowSystem::setType(winId(), NET::Tooltip);
setAttribute(Qt::WA_X11NetWmWindowTypeToolTip, true);
m_meter->setMeterType(Plasma::Meter::BarMeterHorizontal);
m_meter->setMaximum(100);
//Set a fixed width for the volume label. To do that we need the text with the maximum width
//(this is true if the volume is at 100%). We simply achieve that by calling "setCurrentVolume".
setCurrentVolume(100, false);
/* We are registering for volume changes of all cards. An alternative
* would be to register to volume changes of the global master and additionally
* register to MasterChanges. That could be slightly more efficient
*/
ControlManager::instance().addListener(
QString(), // all mixers
ControlManager::Volume,
this,
QString("OSDWidget")
);
//Setup the auto-hide timer
m_hideTimer->setInterval(2000);
m_hideTimer->setSingleShot(true);
connect(m_hideTimer, SIGNAL(timeout()), this, SLOT(hide()));
//Setup the OSD layout
QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(m_container);
layout->setContentsMargins(0, 0, 0, 0);
layout->addItem(m_iconLabel);
layout->addItem(m_meter);
layout->addItem(m_volumeLabel);
m_scene->addItem(m_container);
setGraphicsWidget(m_container);
themeUpdated();
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(themeUpdated())); // e.g. for updating font
}
OSDWidget::~OSDWidget()
{
ControlManager::instance().removeListener(this);
}
void OSDWidget::controlsChange(ControlManager::ChangeType changeType)
{
shared_ptr<MixDevice> master = Mixer::getGlobalMasterMD();
switch (changeType)
{
case ControlManager::Volume:
if ( master )
{
setCurrentVolume(master->playbackVolume().getAvgVolumePercent(Volume::MALL), master->isMuted());
}
break;
default:
ControlManager::warnUnexpectedChangeType(changeType, this);
break;
}
}
void OSDWidget::activateOSD()
{
m_hideTimer->start();
}
void OSDWidget::themeUpdated()
{
//Set a font which makes the text appear as big (height-wise) as the meter.
//QFont font = QFont(m_volumeLabel->nativeWidget()->font());
Plasma::Theme* theme = Plasma::Theme::defaultTheme();
QPalette palette = m_volumeLabel->palette();
palette.setColor(QPalette::WindowText, theme->color(Plasma::Theme::TextColor));
m_volumeLabel->setPalette(palette);
QFont font = theme->font(Plasma::Theme::DefaultFont);
font.setPointSize(15);
m_volumeLabel->setFont(font);
QFontMetrics qfm(font);
QRect textSize = qfm.boundingRect("100 % ");
int widthHint = textSize.width();
int heightHint = textSize.height();
//setCurrentVolume(100,false);
m_volumeLabel->setMinimumWidth(widthHint);
m_volumeLabel->setMaximumHeight(heightHint);
m_volumeLabel->nativeWidget()->setFixedWidth(widthHint);
// m_volumeLabel->setText(oldText);
//Cache the icon pixmaps
QSize iconSize;
if (!Plasma::Theme::defaultTheme()->imagePath("icons/audio").isEmpty()) {
QFontMetrics fm(m_volumeLabel->font());
iconSize = QSize(fm.height(), fm.height());
Plasma::Svg svgIcon;
svgIcon.setImagePath("icons/audio");
svgIcon.setContainsMultipleImages(true);
svgIcon.resize(iconSize);
m_volumeHighPixmap = svgIcon.pixmap("audio-volume-high");
m_volumeMediumPixmap = svgIcon.pixmap("audio-volume-medium");
m_volumeLowPixmap = svgIcon.pixmap("audio-volume-low");
m_volumeMutedPixmap = svgIcon.pixmap("audio-volume-muted");
} else {
iconSize = QSize(IconSize(KIconLoader::Toolbar), IconSize(KIconLoader::Toolbar));
m_volumeHighPixmap = QIcon::fromTheme( QLatin1String( "audio-volume-high" )).pixmap(iconSize);
m_volumeMediumPixmap = QIcon::fromTheme( QLatin1String( "audio-volume-medium" )).pixmap(iconSize);
m_volumeLowPixmap = QIcon::fromTheme( QLatin1String( "audio-volume-low" )).pixmap(iconSize);
m_volumeMutedPixmap = QIcon::fromTheme( QLatin1String( "audio-volume-muted" )).pixmap(iconSize);
}
m_iconLabel->nativeWidget()->setPixmap(m_volumeHighPixmap);
m_iconLabel->nativeWidget()->setFixedSize(iconSize);
m_iconLabel->setMinimumSize(iconSize);
m_iconLabel->setMaximumSize(iconSize);
m_meter->setMaximumHeight(iconSize.height());
m_volumeLabel->setMinimumHeight(iconSize.height());
m_volumeLabel->setMaximumHeight(iconSize.height());
m_volumeLabel->nativeWidget()->setFixedHeight(iconSize.height());
m_volumeLabel->setAlignment(Qt::AlignCenter);
m_volumeLabel->setWordWrap(false);
m_container->setMinimumSize(iconSize.width() * 13 + m_volumeLabel->nativeWidget()->width(), iconSize.height());
m_container->setMaximumSize(iconSize.width() * 13 + m_volumeLabel->nativeWidget()->width(), iconSize.height());
syncToGraphicsWidget();
}
/**
* Set volume level in percent
*/
void OSDWidget::setCurrentVolume(int volumeLevel, bool muted)
{
// qCDebug(KMIX_LOG) << "Meter is visible: " << m_meter->isVisible();
if ( muted )
{
volumeLevel = 0;
}
m_meter->setValue(volumeLevel);
if (!muted && (volumeLevel > 0)) {
if (volumeLevel < 25) {
m_iconLabel->nativeWidget()->setPixmap(m_volumeLowPixmap);
} else if (volumeLevel < 75) {
m_iconLabel->nativeWidget()->setPixmap(m_volumeMediumPixmap);
} else {
m_iconLabel->nativeWidget()->setPixmap(m_volumeHighPixmap);
}
} else {
m_iconLabel->nativeWidget()->setPixmap(m_volumeMutedPixmap);
}
//Show the volume %
m_volumeLabel->setText(QString::number(volumeLevel) + " %"); // if you change the text, please adjust textSize in themeUpdated()
}
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