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135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
/*******************************************************************
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* brightnessosdwidget.cpp
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* adapted from kdemultimedia/kmix/osdwidget.cpp
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* Copyright 2009 Aurélien Gâteau <agateau@kde.org>
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* Copyright 2009 Dario Andres Rodriguez <andresbajotierra@gmail.com>
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* Copyright 2009 Christian Esken <christian.esken@arcor.de>
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* Copyright 2010 Felix Geyer <debfx-kde@fobos.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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******************************************************************/
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#include "brightnessosdwidget.h"
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// Qt
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#include <QGraphicsLinearLayout>
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#include <QPainter>
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#include <QTimer>
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#include <QLabel>
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// KDE
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#include <KIcon>
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#include <KDialog>
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#include <KWindowSystem>
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#include <Plasma/Label>
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#include <Plasma/Meter>
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#include <Plasma/Theme>
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BrightnessOSDWidget::BrightnessOSDWidget(PowerDevil::BackendInterface::BrightnessControlType type, QWidget * parent)
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: Plasma::Dialog(parent, Qt::ToolTip),
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m_type(type),
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m_scene(new QGraphicsScene(this)),
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m_container(new QGraphicsWidget),
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m_iconLabel(new Plasma::Label),
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m_volumeLabel(new Plasma::Label),
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m_meter(new Plasma::Meter),
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m_hideTimer(new QTimer(this))
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{
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KWindowSystem::setState(winId(), NET::KeepAbove);
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KWindowSystem::setType(winId(), NET::Tooltip);
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setAttribute(Qt::WA_X11NetWmWindowTypeToolTip, true);
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m_meter->setMeterType(Plasma::Meter::BarMeterHorizontal);
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m_meter->setMaximum(100);
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m_volumeLabel->setAlignment(Qt::AlignCenter);
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//Setup the auto-hide timer
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m_hideTimer->setInterval(2000);
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m_hideTimer->setSingleShot(true);
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connect(m_hideTimer, SIGNAL(timeout()), this, SLOT(hide()));
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//Setup the OSD layout
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QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(m_container);
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layout->setContentsMargins(0, 0, 0, 0);
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layout->addItem(m_iconLabel);
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layout->addItem(m_meter);
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layout->addItem(m_volumeLabel);
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m_scene->addItem(m_container);
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setGraphicsWidget(m_container);
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themeUpdated();
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connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(themeUpdated())); // e.g. for updating font
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}
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void BrightnessOSDWidget::activateOSD()
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{
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m_hideTimer->start();
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}
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void BrightnessOSDWidget::setCurrentBrightness(int brightnessLevel)
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{
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m_meter->setValue(brightnessLevel);
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m_volumeLabel->setText(QString::number(brightnessLevel) + " %");
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}
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void BrightnessOSDWidget::themeUpdated()
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{
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//Set a font which makes the text appear as big (height-wise) as the meter.
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//QFont font = QFont(m_volumeLabel->nativeWidget()->font());
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Plasma::Theme* theme = Plasma::Theme::defaultTheme();
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QPalette palette = m_volumeLabel->palette();
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palette.setColor(QPalette::WindowText, theme->color(Plasma::Theme::TextColor));
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m_volumeLabel->setPalette(palette);
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QFont font = theme->font(Plasma::Theme::DefaultFont);
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font.setPointSize(15);
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m_volumeLabel->setFont(font);
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QFontMetrics qfm(font);
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QRect textSize = qfm.boundingRect("100 % ");
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int widthHint = textSize.width();
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int heightHint = textSize.height();
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//setCurrentVolume(100,false);
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m_volumeLabel->setMaximumHeight(heightHint);
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m_volumeLabel->setMinimumWidth(widthHint);
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m_volumeLabel->nativeWidget()->setFixedWidth(widthHint);
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//Cache the icon pixmaps
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QFontMetrics fm(m_volumeLabel->font());
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QSize iconSize = QSize(fm.height(), fm.height());
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if (m_type == PowerDevil::BackendInterface::Screen) {
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m_brightnessPixmap = KIcon("video-display").pixmap(iconSize);
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} else {
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m_brightnessPixmap = KIcon("input-keyboard").pixmap(iconSize);
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}
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m_iconLabel->nativeWidget()->setPixmap(m_brightnessPixmap);
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m_iconLabel->nativeWidget()->setFixedSize(iconSize);
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m_iconLabel->setMinimumSize(iconSize);
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m_iconLabel->setMaximumSize(iconSize);
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m_meter->setMaximumHeight(iconSize.height());
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m_container->setMinimumSize(iconSize.width() * 13 + m_volumeLabel->nativeWidget()->width(), iconSize.height());
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m_container->setMaximumSize(iconSize.width() * 13 + m_volumeLabel->nativeWidget()->width(), iconSize.height());
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syncToGraphicsWidget();
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}
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#include "moc_brightnessosdwidget.cpp"
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