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tdemultimedia/kmix/kmixerwidget.cpp

267 lines
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/*
* KMix -- KDE's full featured mini mixer
*
* Copyright (C) 2004 Christian Esken <esken@kde.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
*/
// Qt
#include <qlabel.h>
#include <qlayout.h>
#include <qslider.h>
#include <qstring.h>
#include <qtooltip.h>
#include <qapplication.h> // for QApplication::revsreseLayout()
// KDE
#include <kconfig.h>
#include <kdebug.h>
#include <kglobal.h>
#include <klocale.h>
#include <ktabwidget.h>
// KMix
#include "mixdevicewidget.h"
#include "kmixerwidget.h"
#include "kmixtoolbox.h"
#include "mixer.h"
#include "viewinput.h"
#include "viewoutput.h"
#include "viewswitches.h"
// KMix experimental
#include "viewgrid.h"
#include "viewsurround.h"
/**
This widget is embedded in the KMix Main window. Each Hardware Mixer is visualized by one KMixerWidget.
KMixerWidget contains
(a) a headline where you can change Mixer's (if you got more than one Mixer)
(b) a Tab with 2-4 Tabs (containing View's with sliders, switches and other GUI elements visualizing the Mixer)
(c) A balancing slider
(d) A label containg the mixer name
*/
KMixerWidget::KMixerWidget( int _id, Mixer *mixer, const QString &mixerName,
MixDevice::DeviceCategory categoryMask,
QWidget * parent, const char * name, ViewBase::ViewFlags vflags )
: QWidget( parent, name ), _mixer(mixer), m_balanceSlider(0),
m_topLayout(0),
m_id( _id ),
_iconsEnabled( true ), _labelsEnabled( false ), _ticksEnabled( false ),
_valueStyle ( -1 ) // this definitely does not correspond to the 'default value display' style,
// so the style will be set by a later call to setValueStyle()
{
m_categoryMask = categoryMask;
if ( _mixer )
{
createLayout(vflags);
}
else
{
// No mixer found
// !! Fix this: This is actually never shown!
QBoxLayout *layout = new QHBoxLayout( this );
QString s = i18n("Invalid mixer");
if ( !mixerName.isEmpty() )
s.append(" \"").append(mixerName).append("\"");
QLabel *errorLabel = new QLabel( s, this );
errorLabel->setAlignment( QLabel::AlignCenter | QLabel::WordBreak );
layout->addWidget( errorLabel );
}
}
KMixerWidget::~KMixerWidget()
{
}
/**
* Creates the widgets as described in the KMixerWidget constructor
*/
void KMixerWidget::createLayout(ViewBase::ViewFlags vflags)
{
// delete old objects
if( m_balanceSlider ) {
delete m_balanceSlider;
}
if( m_topLayout ) {
delete m_topLayout;
}
// create main layout
m_topLayout = new QVBoxLayout( this, 0, 3, "m_topLayout" );
// Create tabs of input + output + [...]
m_ioTab = new KTabWidget( this, "ioTab" );
m_topLayout->add( m_ioTab );
/*******************************************************************
* Now the main GUI is created.
* 1) Select a (GUI) profile, which defines which controls to show on which Tab
* 2a) Create the Tab's and the corresponding Views
* 2b) Create device widgets
* 2c) Add Views to Tab
********************************************************************/
//KMixGUIProfile* prof = MixerToolbox::selectProfile(_mixer);
possiblyAddView(new ViewOutput ( m_ioTab, "output", i18n("Output"), _mixer, vflags ) );
possiblyAddView(new ViewInput( m_ioTab, "input", i18n("Input"), _mixer, vflags ) );
possiblyAddView(new ViewSwitches( m_ioTab, "switches", i18n("Switches"), _mixer, vflags ) );
if ( vflags & ViewBase::Experimental_SurroundView )
possiblyAddView( new ViewSurround( m_ioTab, "surround", i18n("Surround"), _mixer, vflags ) );
if ( vflags & ViewBase::Experimental_GridView )
possiblyAddView( new ViewGrid( m_ioTab, "grid", i18n("Grid"), _mixer, vflags ) );
// *** Lower part: Slider and Mixer Name ************************************************
QHBoxLayout *balanceAndDetail = new QHBoxLayout( m_topLayout, 8, "balanceAndDetail");
// Create the left-right-slider
m_balanceSlider = new QSlider( -100, 100, 25, 0, QSlider::Horizontal, this, "RightLeft" );
m_balanceSlider->setTickmarks( QSlider::Below );
m_balanceSlider->setTickInterval( 25 );
m_balanceSlider->setMinimumSize( m_balanceSlider->sizeHint() );
m_balanceSlider->setFixedHeight( m_balanceSlider->sizeHint().height() );
QLabel *mixerName = new QLabel(this, "mixerName");
mixerName->setText( _mixer->mixerName() );
balanceAndDetail->addSpacing( 10 );
balanceAndDetail->addWidget( m_balanceSlider );
balanceAndDetail->addWidget( mixerName );
balanceAndDetail->addSpacing( 10 );
connect( m_balanceSlider, SIGNAL(valueChanged(int)), this, SLOT(balanceChanged(int)) );
QToolTip::add( m_balanceSlider, i18n("Left/Right balancing") );
// --- "MenuBar" toggling from the various View's ---
show();
// kdDebug(67100) << "KMixerWidget::createLayout(): EXIT\n";
}
void KMixerWidget::possiblyAddView(ViewBase* vbase)
{
if ( vbase->count() == 0 )
delete vbase;
else {
_views.push_back(vbase);
vbase ->createDeviceWidgets();
m_ioTab->addTab( vbase , vbase->caption() );
connect( vbase, SIGNAL(toggleMenuBar()), parentWidget(), SLOT(toggleMenuBar()) );
}
}
void KMixerWidget::setIcons( bool on )
{
for ( std::vector<ViewBase*>::iterator it = _views.begin(); it != _views.end(); it++) {
ViewBase* mixerWidget = *it;
KMixToolBox::setIcons(mixerWidget->_mdws, on);
} // for all tabs
}
void KMixerWidget::setLabels( bool on )
{
if ( _labelsEnabled!=on ) {
// value was changed
_labelsEnabled = on;
for ( std::vector<ViewBase*>::iterator it = _views.begin(); it != _views.end(); it++) {
ViewBase* mixerWidget = *it;
KMixToolBox::setLabels(mixerWidget->_mdws, on);
} // for all tabs
}
}
void KMixerWidget::setTicks( bool on )
{
if ( _ticksEnabled!=on ) {
// value was changed
_ticksEnabled = on;
for ( std::vector<ViewBase*>::iterator it = _views.begin(); it != _views.end(); it++) {
ViewBase* mixerWidget = *it;
KMixToolBox::setTicks(mixerWidget->_mdws, on);
} // for all tabs
}
}
void KMixerWidget::setValueStyle( int vs )
{
if ( _valueStyle!=vs ) {
// value was changed
_valueStyle = vs;
for ( std::vector<ViewBase*>::iterator it = _views.begin(); it != _views.end(); it++) {
ViewBase* mixerWidget = *it;
KMixToolBox::setValueStyle(mixerWidget->_mdws, vs);
} // for all tabs
}
}
/**
* @todo : Is the view list already filled, when loadConfig() is called?
*/
void KMixerWidget::loadConfig( KConfig *config, const QString &grp )
{
for ( std::vector<ViewBase*>::iterator it = _views.begin(); it != _views.end(); it++) {
ViewBase* mixerWidget = *it;
QString viewPrefix = "View.";
viewPrefix += mixerWidget->name();
KMixToolBox::loadConfig(mixerWidget->_mdws, config, grp, viewPrefix );
mixerWidget->configurationUpdate();
} // for all tabs
}
void KMixerWidget::saveConfig( KConfig *config, const QString &grp )
{
config->setGroup( grp );
// Write mixer name. It cannot be changed in the Mixer instance,
// it is only saved for diagnostical purposes (analyzing the config file).
config->writeEntry("Mixer_Name_Key", _mixer->mixerName());
for ( std::vector<ViewBase*>::iterator it = _views.begin(); it != _views.end(); it++) {
ViewBase* mixerWidget = *it;
QString viewPrefix = "View.";
viewPrefix += mixerWidget->name();
KMixToolBox::saveConfig(mixerWidget->_mdws, config, grp, viewPrefix );
} // for all tabs
}
void KMixerWidget::toggleMenuBarSlot() {
emit toggleMenuBar();
}
// in RTL mode, the slider is reversed, we cannot just connect the signal to setBalance()
// hack arround it before calling _mixer->setBalance()
void KMixerWidget::balanceChanged(int balance)
{
if (QApplication::reverseLayout())
balance = -balance;
_mixer->setBalance( balance );
}
#include "kmixerwidget.moc"