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* KMix -- KDE's full featured mini mixer
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* Copyright (C) 2000 Stefan Schimanski <1Stein@gmx.de>
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* Copyright (C) 2001 Preston Brown <pbrown@kde.org>
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* Copyright (C) 2004 Christian Esken <esken@kde.org>
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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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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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 GNU
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* Library General Public License for more details.
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#include <kapplication.h>
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#include <kglobalsettings.h>
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#include <kiconloader.h>
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#include <kwindowsystem.h>
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#include <kactioncollection.h>
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#include <ktoggleaction.h>
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#include <qapplication.h>
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#include <QDesktopWidget>
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#include <QMouseEvent>
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#include <Phonon/MediaObject>
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#include "dialogselectmaster.h"
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#include "kmixdockwidget.h"
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#include "mixdevicewidget.h"
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#include "mixertoolbox.h"
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#include "viewdockareapopup.h"
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KMixDockWidget::KMixDockWidget(KMixWindow* parent, QWidget *referenceWidget, bool volumePopup)
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: KStatusNotifierItem(parent)
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, _referenceWidget(referenceWidget)
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, _playBeepOnVolumeChange(false) // disabled due to triggering a "Bug"
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, _oldToolTipValue(-1)
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, _volumePopup(volumePopup)
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, _kmixMainWindow(parent)
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setToolTipIconByName("kmix");
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setCategory(Hardware);
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m_mixer = Mixer::getGlobalMasterMixer(); // ugly, but we'll live with that for now
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createMasterVolWidget();
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connect(this, SIGNAL(scrollRequested(int,Qt::Orientation)), this, SLOT(trayWheelEvent(int)));
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connect(this, SIGNAL(secondaryActivateRequested(QPoint)), this, SLOT(dockMute()));
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connect(contextMenu(), SIGNAL(aboutToShow()), this, SLOT(contextMenuAboutToShow()));
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// TODO remove this, as in a KMenu it does not need window tricks
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// ViewDockAreaPopup* dockAreaPopup = qobject_cast<ViewDockAreaPopup*>(referenceWidget);
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// if ( dockAreaPopup ) {
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// KWindowSystem::setState( dockAreaPopup->winId(), NET::StaysOnTop | NET::SkipTaskbar | NET::SkipPager );
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KMixDockWidget::~KMixDockWidget()
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void KMixDockWidget::createActions()
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QMenu *menu = contextMenu();
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MixDevice* md = Mixer::getGlobalMasterMD();
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if ( md != 0 && md->playbackVolume().hasSwitch() ) {
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// Put "Mute" selector in context menu
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KToggleAction *action = actionCollection()->add<KToggleAction>( "dock_mute" );
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action->setText( i18n( "M&ute" ) );
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connect(action, SIGNAL(triggered(bool) ), SLOT( dockMute() ));
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menu->addAction( action );
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// Put "Select Master Channel" dialog in context menu
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if ( m_mixer != 0 ) {
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QAction *action = actionCollection()->addAction( "select_master" );
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action->setText( i18n("Select Master Channel...") );
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connect(action, SIGNAL(triggered(bool) ), SLOT(selectMaster()));
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menu->addAction( action );
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// Setup volume preview
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if ( _playBeepOnVolumeChange ) {
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_audioPlayer = Phonon::createPlayer(Phonon::MusicCategory);
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_audioPlayer->setParent(this);
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KMixDockWidget::createMasterVolWidget()
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// Reset flags, so that the dock icon will be reconstructed
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_oldToolTipValue = -1;
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_oldPixmapType = '-';
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if (Mixer::getGlobalMasterMD() == 0) {
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// In case that there is no mixer installed, there will be no controlChanged() signal's
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// Thus we prepare the dock areas manually
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m_mixer->readSetFromHWforceUpdate(); // after changing the master device, make sure to re-read (otherwise no "changed()" signals might get sent by the Mixer
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/* With the recently introduced QSocketNotifier stuff, we can't rely on regular timer updates
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any longer. Also the readSetFromHWforceUpdate() won't be enough. As a workaround, we trigger
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all "repaints" manually here.
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The call to m_mixer->readSetFromHWforceUpdate() is most likely superfluous, even if we don't use QSocketNotifier (e.g. in backends OSS, Solaris, ...)
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/* We are setting up 3 connections:
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* Refreshig the _dockAreaPopup (not anymore necessary, because ViewBase already does it)
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* Refreshing the Tooltip
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* Refreshing the Icon
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// connect( m_mixer, SIGNAL(controlChanged()), _dockAreaPopup, SLOT(refreshVolumeLevels()) );
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connect( m_mixer, SIGNAL(controlChanged()), this, SLOT(setVolumeTip() ) );
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connect( m_mixer, SIGNAL(controlChanged()), this, SLOT(updatePixmap() ) );
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void KMixDockWidget::selectMaster()
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DialogSelectMaster* dsm = new DialogSelectMaster(m_mixer);
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connect ( dsm, SIGNAL(newMasterSelected(QString&, QString&)), SLOT( handleNewMaster(QString&, QString&)) );
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connect ( dsm, SIGNAL(newMasterSelected(QString&, QString&)), SIGNAL( newMasterSelected()) );
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// !! The dialog is modal. Does it delete itself?
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void KMixDockWidget::handleNewMaster(QString& /*mixerID*/, QString& /*control_id*/)
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/* When a new master is selected, we will need to destroy *this instance of KMixDockWidget.
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Reason: This widget is a KSystemTrayIcon, and needs an associated QWidget. This is in
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our case the ViewDockAreaPopup instance. As that is recreated, we need to recrate ourself as well.
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The only chance to do so is outside, in fact it is done by KMixWindow::updateDocking(). This needs to
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use deleteLater(), as we are executing in a SLOT currently.
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_kmixMainWindow->updateDocking();
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Mixer *mixer = MixerToolBox::instance()->find(mixerID);
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kError(67100) << "KMixDockWidget::createPage(): Invalid Mixer (mixerID=" << mixerID << ")" << endl;
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return; // can not happen
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//Mixer::setGlobalMaster(mixer->id(), control_id); // We must save this information "somewhere".
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createMasterVolWidget();
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KMixDockWidget::setVolumeTip()
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MixDevice *md = Mixer::getGlobalMasterMD();
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int newToolTipValue = 0;
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tip = i18n("Mixer cannot be found"); // !! text could be reworked
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newToolTipValue = -2;
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// Playback volume will be used for the DockIcon if available.
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// This heuristic is "good enough" for the DockIcon for now.
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Volume& vol = md->playbackVolume();
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if (! vol.hasVolume() ) {
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vol = md->captureVolume();
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if ( vol.hasVolume() && vol.maxVolume() != 0 ) {
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val = (vol.getAvgVolume(Volume::MMAIN)*100 )/( vol.maxVolume() );
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// create a new "virtual" value. With that we see "volume changes" as well as "muted changes"
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newToolTipValue = val;
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if ( md->isMuted() ) newToolTipValue += 10000;
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if ( _oldToolTipValue != newToolTipValue ) {
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tip = i18n( "Volume at %1%", val );
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if ( md->playbackVolume().hasSwitch() && md->isMuted() ) {
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tip += i18n( " (Muted)" );
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// The actual updating is only done when the "toolTipValue" was changed
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if ( newToolTipValue != _oldToolTipValue ) {
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// changed (or completely new tooltip)
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setToolTipTitle(tip);
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_oldToolTipValue = newToolTipValue;
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KMixDockWidget::updatePixmap()
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MixDevice *md = Mixer::getGlobalMasterMD();
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else if ( md->playbackVolume().hasSwitch() && md->isMuted() )
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Volume& vol = md->playbackVolume();
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if (! vol.hasVolume() ) {
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vol = md->captureVolume();
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long absoluteVolume = vol.getAvgVolume(Volume::MALL);
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int percentage = vol.percentage(absoluteVolume);
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if ( percentage < 25 ) newPixmapType = '1'; // Hint: also negative-values
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else if ( percentage < 75 ) newPixmapType = '2';
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else newPixmapType = '3';
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if ( newPixmapType != _oldPixmapType ) {
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// Pixmap must be changed => do so
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switch ( newPixmapType ) {
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case 'e': setIconByName( "kmixdocked_error" ); break;
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case 'm': setIconByName( "audio-volume-muted" ); break;
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case '1': setIconByName( "audio-volume-low" ); break;
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case '2': setIconByName( "audio-volume-medium" ); break;
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case '3': setIconByName( "audio-volume-high" ); break;
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_oldPixmapType = newPixmapType;
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void KMixDockWidget::activate(const QPoint &pos)
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KMenu* dockAreaPopup = qobject_cast<KMenu*>(_referenceWidget);
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if ( !dockAreaPopup ) {
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// Use default KStatusNotifierItem behavior if we are not using the
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KStatusNotifierItem::activate(pos);
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if ( dockAreaPopup->isVisible() ) {
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dockAreaPopup->hide();
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if (contextMenu()->isVisible()) {
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contextMenu()->hide();
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dockAreaPopup->adjustSize();
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int h = dockAreaPopup->height();
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int x = pos.x() - dockAreaPopup->width()/2;
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// kDebug() << "h="<<h<< " x="<<x << " y="<<y<< "gx="<< geometry().x() << "gy="<< geometry().y();
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dockAreaPopup->move(x, y); // so that the mouse is outside of the widget
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kDebug() << "moving to" << dockAreaPopup->size() << x << y;
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dockAreaPopup->show();
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// Now handle Multihead displays. And also make sure that the dialog is not
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// moved out-of-the screen on the right (see Bug 101742).
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const QDesktopWidget* vdesktop = QApplication::desktop();
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const QRect& vScreenSize = vdesktop->screenGeometry(dockAreaPopup);
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//const QRect screenGeometry(const QWidget *widget) const
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if ( (x+dockAreaPopup->width()) > (vScreenSize.width() + vScreenSize.x()) ) {
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// move horizontally, so that it is completely visible
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dockAreaPopup->move(vScreenSize.width() + vScreenSize.x() - dockAreaPopup->width() -1 , y);
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else if ( x < vScreenSize.x() ) {
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// horizontally out-of bound
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dockAreaPopup->move(vScreenSize.x(), y);
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// the above stuff could also be implemented vertically
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KWindowSystem::setState( dockAreaPopup->winId(), NET::StaysOnTop | NET::SkipTaskbar | NET::SkipPager );
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// KMixDockWidget::trayToolTipEvent(QHelpEvent *e ) {
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// kDebug(67100) << "trayToolTipEvent" ;
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KMixDockWidget::trayWheelEvent(int delta)
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MixDevice *md = Mixer::getGlobalMasterMD();
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Volume vol = md->playbackVolume();
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if ( md->playbackVolume().hasVolume() )
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vol = md->playbackVolume();
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vol = md->captureVolume();
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int inc = vol.maxVolume() / 20;
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if ( inc < 1 ) inc = 1;
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for ( int i = 0; i < vol.count(); i++ ) {
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int newVal = vol[i] + (inc * (delta / 120));
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if( newVal < 0 ) newVal = 0;
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vol.setVolume( (Volume::ChannelID)i, newVal < vol.maxVolume() ? newVal : vol.maxVolume() );
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if ( _playBeepOnVolumeChange ) {
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QString fileName("KDE_Beep_Digital_1.ogg");
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_audioPlayer->setCurrentSource(fileName);
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_audioPlayer->play();
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if ( md->playbackVolume().hasVolume() )
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md->playbackVolume().setVolume(vol);
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md->captureVolume().setVolume(vol);
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m_mixer->commitVolumeChange(md);
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KMixDockWidget::dockMute()
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MixDevice *md = Mixer::getGlobalMasterMD();
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md->setMuted( !md->isMuted() );
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md->mixer()->commitVolumeChange( md );
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KMixDockWidget::contextMenuAboutToShow()
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QAction* showAction = actionCollection()->action("minimizeRestore");
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if ( associatedWidget() && showAction )
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if ( associatedWidget()->isVisible() )
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showAction->setText( i18n("Hide Mixer Window") );
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showAction->setText( i18n("Show Mixer Window") );
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// Enable/Disable "Muted" menu item
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MixDevice* md = Mixer::getGlobalMasterMD();
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KToggleAction *dockMuteAction = static_cast<KToggleAction*>(actionCollection()->action("dock_mute"));
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//kDebug(67100) << "---> md=" << md << "dockMuteAction=" << dockMuteAction << "isMuted=" << md->isMuted();
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if ( md != 0 && dockMuteAction != 0 ) {
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bool hasSwitch = md->playbackVolume().hasSwitch();
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dockMuteAction->setEnabled( hasSwitch );
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dockMuteAction->setChecked( hasSwitch && md->isMuted() );
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#include "kmixdockwidget.moc"
added
removed
kmix/kmixdockwidget.cpp
