fixed various crashes when removing instrument-track with visible instrument-track-window or loading another instrument/preset

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/branches/lmms-mv@712 0778d3d1-df1d-0410-868b-ea421aaaa00d

src/core/instrument.cpp

@@ -139,6 +139,7 @@ instrumentView::instrumentView( instrument * _instrument, QWidget * _parent ) :
 {
 	setModel( _instrument );
 	setFixedSize( 250, 250 );
+	setAttribute( Qt::WA_DeleteOnClose, TRUE );
 }
 
 
@@ -146,24 +147,34 @@ instrumentView::instrumentView( instrument * _instrument, QWidget * _parent ) :
 
 instrumentView::~instrumentView()
 {
+	if( getInstrumentTrackWindow() )
+	{
+		getInstrumentTrackWindow()->m_instrumentView = NULL;
+	}
 }
 
 
 
+
 void instrumentView::setModel( ::model * _model, bool )
 {
 	if( dynamic_cast<instrument *>( _model ) != NULL )
 	{
 		modelView::setModel( _model );
-		if( dynamic_cast<instrumentTrackView *>( parentWidget() ) !=
-									NULL )
-		{
-			dynamic_cast<instrumentTrackView *>( parentWidget() )->
-				setWindowIcon( *( model()->
+		getInstrumentTrackWindow()->setWindowIcon( *( model()->
 						getDescriptor()->logo ) );
-		}
+		connect( model(), SIGNAL( destroyed( QObject * ) ),
+					this, SLOT( close() ) );
 	}
 }
 
 
+
+
+instrumentTrackWindow * instrumentView::getInstrumentTrackWindow( void )
+{
+	return( dynamic_cast<instrumentTrackWindow *>(
+					parentWidget()->parentWidget() ) );
+}
+
 #endif

src/tracks/instrument_track.cpp

@@ -145,6 +145,7 @@ instrumentTrack::instrumentTrack( trackContainer * _tc ) :
 
 instrumentTrack::~instrumentTrack()
 {
+	delete m_instrument;
 	engine::getMixer()->removePlayHandles( this );
 	engine::getMixer()->getMIDIClient()->removePort( m_midiPort );
 }
@@ -778,6 +779,7 @@ void instrumentTrack::loadTrackSpecificSettings( const QDomElement & _this )
 					m_instrument->restoreState(
 							node.toElement() );
 				}
+				emit instrumentChanged();
 			}
 		}
 		node = node.nextSibling();
@@ -1146,6 +1148,7 @@ instrumentTrackWindow::instrumentTrackWindow( instrumentTrackView * _itv ) :
 
 instrumentTrackWindow::~instrumentTrackWindow()
 {
+	delete m_instrumentView;
 	if( engine::getMainWindow()->workspace() )
 	{
 		parentWidget()->hide();
@@ -1167,6 +1170,7 @@ void instrumentTrackWindow::modelChanged( void )
 			this, SLOT( updateInstrumentView() ),
 			Qt::QueuedConnection );
 	m_volumeKnob->setModel( &m_track->m_volumeModel );
+	m_volumeKnob->setModel( &m_track->m_volumeModel );
 	m_surroundArea->setModel( &m_track->m_surroundAreaModel );
 	m_pianoView->setModel( &m_track->m_piano );
 

src/widgets/automatable_button.cpp

@@ -207,8 +207,6 @@ void automatableButtonGroup::removeButton( automatableButton * _btn )
 {
 	m_buttons.erase( qFind( m_buttons.begin(), m_buttons.end(), _btn ) );
 	_btn->m_group = NULL;
-
-	model()->setRange( 0, m_buttons.size() - 1 );
 }
 
 
@@ -243,6 +241,7 @@ void automatableButtonGroup::modelChanged( void )
 
 void automatableButtonGroup::updateButtons( void )
 {
+	model()->setRange( 0, m_buttons.size() - 1 );
 	int i = 0;
 	foreach( automatableButton * btn, m_buttons )
 	{

src/widgets/group_box.cpp

@@ -77,6 +77,7 @@ groupBox::groupBox( const QString & _caption, QWidget * _parent ) :
 
 groupBox::~groupBox()
 {
+	delete m_led;
 }
 
 

src/widgets/instrument_function_views.cpp

@@ -88,6 +88,7 @@ chordCreatorView::chordCreatorView( chordCreator * _cc, QWidget * _parent ) :
 
 chordCreatorView::~chordCreatorView()
 {
+	delete m_chordsGroupBox;
 }
 
 
@@ -231,6 +232,8 @@ arpeggiatorView::arpeggiatorView( arpeggiator * _arp, QWidget * _parent ) :
 
 arpeggiatorView::~arpeggiatorView()
 {
+	delete m_arpDirectionBtnGrp;
+	delete m_arpGroupBox;
 }