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tdemultimedia/kmix/mdwenum.cpp

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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.
*/
#include <qcursor.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qobject.h>
#include <qtooltip.h>
#include <klocale.h>
#include <kconfig.h>
#include <kcombobox.h>
#include <kaction.h>
#include <kpopupmenu.h>
#include <kglobalaccel.h>
#include <kkeydialog.h>
#include <kdebug.h>
#include "mdwenum.h"
#include "mixer.h"
#include "viewbase.h"
/**
* Class that represents an Enum element (a select one-from-many selector)
* The orientation (horizontal, vertical) is ignored
*/
MDWEnum::MDWEnum(Mixer *mixer, MixDevice* md,
Qt::Orientation orientation,
QWidget* parent, ViewBase* mw, const char* name) :
MixDeviceWidget(mixer,md,false,orientation,parent,mw,name),
_label(0), _enumCombo(0), _layout(0)
{
// create actions (on _mdwActions, see MixDeviceWidget)
// KStdAction::showMenubar() is in MixDeviceWidget now
new KToggleAction( i18n("&Hide"), 0, this, SLOT(setDisabled()), _mdwActions, "hide" );
new KAction( i18n("C&onfigure Shortcuts..."), 0, this, SLOT(defineKeys()), _mdwActions, "keys" );
// create widgets
createWidgets();
/* !!! remove this for production version */
m_keys->insert( "Next Value", i18n( "Next Value" ), QString::null,
KShortcut(), KShortcut(), this, SLOT( nextEnumId() ) );
installEventFilter( this ); // filter for popup
}
MDWEnum::~MDWEnum()
{
}
void MDWEnum::createWidgets()
{
if ( _orientation == Qt::Vertical ) {
_layout = new QVBoxLayout( this );
_layout->setAlignment(Qt::AlignHCenter);
}
else {
_layout = new QHBoxLayout( this );
_layout->setAlignment(Qt::AlignVCenter);
}
QToolTip::add( this, m_mixdevice->name() );
//this->setStretchFactor( _layout, 0 );
//QSizePolicy qsp( QSizePolicy::Ignored, QSizePolicy::Maximum);
//_layout->setSizePolicy(qsp);
//_layout->setSpacing(KDialog::spacingHint());
_label = new QLabel( m_mixdevice->name(), this);
_layout->addWidget(_label);
_label->setFixedHeight(_label->sizeHint().height());
_enumCombo = new KComboBox( FALSE, this, "mixerCombo" );
// ------------ fill ComboBox start ------------
int maxEnumId= m_mixdevice->enumValues().count();
for (int i=0; i<maxEnumId; i++ ) {
_enumCombo->insertItem( *(m_mixdevice->enumValues().at(i)),i);
}
// ------------ fill ComboBox end --------------
_layout->addWidget(_enumCombo);
_enumCombo->setFixedHeight(_enumCombo->sizeHint().height());
connect( _enumCombo, SIGNAL( activated( int ) ), this, SLOT( setEnumId( int ) ) );
QToolTip::add( _enumCombo, m_mixdevice->name() );
//_layout->addSpacing( 4 );
}
void MDWEnum::update()
{
if ( m_mixdevice->isEnum() ) {
//kdDebug(67100) << "MDWEnum::update() enumID=" << m_mixdevice->enumId() << endl;
_enumCombo->setCurrentItem( m_mixdevice->enumId() );
}
else {
// !!! print warning message
}
}
void MDWEnum::showContextMenu()
{
if( m_mixerwidget == NULL )
return;
KPopupMenu *menu = m_mixerwidget->getPopup();
QPoint pos = QCursor::pos();
menu->popup( pos );
}
QSize MDWEnum::sizeHint() const {
if ( _layout != 0 ) {
return _layout->sizeHint();
}
else {
// layout not (yet) created
return QWidget::sizeHint();
}
}
/**
This slot is called, when a user has clicked the mute button. Also it is called by any other
associated KAction like the context menu.
*/
void MDWEnum::nextEnumId() {
if( m_mixdevice->isEnum() ) {
int curEnum = enumId();
if ( (unsigned int)curEnum < m_mixdevice->enumValues().count() ) {
// next enum value
setEnumId(curEnum+1);
}
else {
// wrap around
setEnumId(0);
}
} // isEnum
}
void MDWEnum::setEnumId(int value)
{
if ( m_mixdevice->isEnum() ) {
m_mixdevice->setEnumId( value );
m_mixer->commitVolumeChange( m_mixdevice );
}
}
int MDWEnum::enumId()
{
if ( m_mixdevice->isEnum() ) {
return m_mixdevice->enumId();
}
else {
return 0;
}
}
void MDWEnum::setDisabled()
{
setDisabled( true );
}
void MDWEnum::setDisabled( bool value ) {
if ( m_disabled!=value)
{
value ? hide() : show();
m_disabled = value;
}
}
/**
* An event filter for the various QWidgets. We watch for Mouse press Events, so
* that we can popup the context menu.
*/
bool MDWEnum::eventFilter( QObject* obj, QEvent* e )
{
if (e->type() == QEvent::MouseButtonPress) {
QMouseEvent *qme = static_cast<QMouseEvent*>(e);
if (qme->button() == Qt::RightButton) {
showContextMenu();
return true;
}
}
return QWidget::eventFilter(obj,e);
}
#include "mdwenum.moc"