From 15318cad33835e4e2dc620d033e43cd930676cdd Mon Sep 17 00:00:00 2001
From: kergoth <kergoth>
Date: Fri, 25 Jan 2002 22:14:26 +0000
Subject: Initial revision

---
(limited to 'core/applets/volumeapplet/volume.cpp')

diff --git a/core/applets/volumeapplet/volume.cpp b/core/applets/volumeapplet/volume.cpp
new file mode 100644
index 0000000..35dbf22
--- a/dev/null
+++ b/core/applets/volumeapplet/volume.cpp
@@ -0,0 +1,199 @@
+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include "volume.h"
+
+#include <qpe/resource.h>
+#include <qpe/qpeapplication.h>
+#include <qpe/config.h>
+#if ( defined Q_WS_QWS || defined(_WS_QWS_) ) && !defined(QT_NO_COP)
+#include <qpe/qcopenvelope_qws.h>
+#endif
+
+#include <qpainter.h>
+#include <qcheckbox.h>
+#include <qslider.h>
+#include <qlayout.h>
+#include <qframe.h>
+#include <qpixmap.h>
+
+
+VolumeControl::VolumeControl( QWidget *parent, const char *name )
+    : QFrame( parent, name, WDestructiveClose | WStyle_StaysOnTop | WType_Popup )
+{
+    setFrameStyle( QFrame::PopupPanel | QFrame::Raised );
+
+    QVBoxLayout *vbox = new QVBoxLayout( this );
+    slider = new QSlider( this );
+    muteBox = new QCheckBox( tr("Mute"), this );
+    slider->setRange( 0, 100 );
+    slider->setTickmarks( QSlider::Both );
+    slider->setTickInterval( 20 );
+    slider->setFocusPolicy( QWidget::NoFocus );
+    muteBox->setFocusPolicy( QWidget::NoFocus );
+    vbox->setMargin( 6 );
+    vbox->setSpacing( 3 );
+    vbox->addWidget( slider, 0, Qt::AlignVCenter | Qt::AlignHCenter );
+    vbox->addWidget( muteBox );
+    setFixedHeight( 100 );
+    setFixedWidth( sizeHint().width() );
+    setFocusPolicy(QWidget::NoFocus);
+}
+
+void VolumeControl::keyPressEvent( QKeyEvent *e) 
+{
+    switch(e->key()) {
+	case Key_Up:
+	    slider->subtractStep();
+	    break;
+	case Key_Down:
+	    slider->addStep();
+	    break;
+	case Key_Space:
+	    muteBox->toggle();
+	    break;
+	case Key_Escape:
+	    close();
+	    break;
+    }
+}
+
+//===========================================================================
+
+VolumeApplet::VolumeApplet( QWidget *parent, const char *name )
+    : QWidget( parent, name )
+{
+    setFixedHeight( 18 );
+    setFixedWidth( 14 );
+    volumePixmap = Resource::loadPixmap( "volume" );
+    muted = FALSE; // ### read from pref
+    volumePercent = 50; // ### read from pref
+    connect( qApp, SIGNAL( volumeChanged(bool) ), this, SLOT( volumeChanged(bool) ) );
+    writeSystemVolume();
+}
+
+VolumeApplet::~VolumeApplet()
+{
+}
+
+void VolumeApplet::mousePressEvent( QMouseEvent *)
+{
+    // Create a small volume control window to adjust the volume with
+    VolumeControl *vc = new VolumeControl;
+    vc->slider->setValue( 100 - volumePercent );
+    vc->muteBox->setChecked( muted );
+    connect( vc->slider, SIGNAL( valueChanged( int ) ), this, SLOT( sliderMoved( int ) ) );
+    connect( vc->muteBox, SIGNAL( toggled( bool ) ), this, SLOT( mute( bool ) ) );
+    QPoint curPos = mapToGlobal( rect().topLeft() );
+    vc->move( curPos.x()-(vc->sizeHint().width()-width())/2, curPos.y() - 100 );
+    vc->show();
+}
+
+void VolumeApplet::volumeChanged( bool nowMuted )
+{
+    int previousVolume = volumePercent;
+
+    if ( !nowMuted )
+        readSystemVolume();
+
+    // Handle case where muting it toggled
+    if ( muted != nowMuted ) {
+	muted = nowMuted;
+	repaint( TRUE );
+	return;
+    }
+
+    // Avoid over repainting
+    if ( previousVolume != volumePercent )
+	repaint( 2, height() - 3, width() - 4, 2, FALSE );
+}
+
+
+void VolumeApplet::mute( bool toggled )
+{
+    muted = toggled;
+    // clear if removing mute
+    repaint( !toggled );
+    writeSystemVolume();
+}
+
+
+void VolumeApplet::sliderMoved( int percent )
+{
+    setVolume( 100 - percent );
+}
+
+
+void VolumeApplet::readSystemVolume()
+{
+    Config cfg("Sound");
+    cfg.setGroup("System");
+    volumePercent = cfg.readNumEntry("Volume");
+}
+
+
+void VolumeApplet::setVolume( int percent )
+{
+    // clamp volume percent to be between 0 and 100
+    volumePercent = (percent < 0) ? 0 : ((percent > 100) ? 100 : percent);
+    // repaint just the little volume rectangle
+    repaint( 2, height() - 3, width() - 4, 2, FALSE );
+    writeSystemVolume();
+}
+
+
+void VolumeApplet::writeSystemVolume()
+{
+    {
+	Config cfg("Sound");
+	cfg.setGroup("System");
+	cfg.writeEntry("Volume",volumePercent);
+    }
+#if ( defined Q_WS_QWS || defined(_WS_QWS_) ) && !defined(QT_NO_COP)
+    // Send notification that the volume has changed
+    QCopEnvelope( "QPE/System", "volumeChange(bool)" ) << muted;
+#endif
+}
+
+
+void VolumeApplet::paintEvent( QPaintEvent* )
+{
+    QPainter p(this);
+
+    if (volumePixmap.isNull())
+        volumePixmap = Resource::loadPixmap( "volume" );
+    p.drawPixmap( 0, 1, volumePixmap );
+    p.setPen( darkGray );
+    p.drawRect( 1, height() - 4, width() - 2, 4 );
+
+    int pixelsWide = volumePercent * (width() - 4) / 100;
+    p.fillRect( 2, height() - 3, pixelsWide, 2, red );
+    p.fillRect( pixelsWide + 2, height() - 3, width() - 4 - pixelsWide, 2, lightGray );
+
+    if ( muted ) {
+	p.setPen( red );
+	p.drawLine( 1, 2, width() - 2, height() - 5 );
+	p.drawLine( 1, 3, width() - 2, height() - 4 );
+	p.drawLine( width() - 2, 2, 1, height() - 5 );
+	p.drawLine( width() - 2, 3, 1, height() - 4 );
+    }
+}
+
+
--
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