Variable tab widget

include/InstrumentTrack.h

@@ -427,6 +427,9 @@ protected slots:
 private:
 	virtual void modelChanged();
 	void viewInstrumentInDirection(int d);
+	//! adjust size of any child widget of the main tab
+	//! required to keep the old look when using a variable sized tab widget
+	void adjustTabSize(QWidget *w);
 
 	InstrumentTrack * m_track;
 	InstrumentTrackView * m_itv;

include/TabWidget.h

@@ -36,7 +36,10 @@ class TabWidget : public QWidget
 {
 	Q_OBJECT
 public:
-	TabWidget( const QString & _caption, QWidget * _parent, bool usePixmap = false );
+	//! @param resizable If true, the widget resizes to fit the size of all tabs
+	//!   If false, all child widget will be cut down to the TabWidget's size
+	TabWidget( const QString & _caption, QWidget * _parent,
+				bool usePixmap = false, bool resizable = false );
 	virtual ~TabWidget() = default;
 
 	void addTab( QWidget * w, const QString & name, const char *pixmap = NULL, int idx = -1 );
@@ -74,7 +77,7 @@ class TabWidget : public QWidget
 	virtual void paintEvent( QPaintEvent * _pe );
 	virtual void resizeEvent( QResizeEvent * _re );
 	virtual void wheelEvent( QWheelEvent * _we );
-
+	virtual QSize minimumSizeHint() const;
 
 private:
 	struct widgetDesc
@@ -88,6 +91,7 @@ class TabWidget : public QWidget
 
 	widgetStack m_widgets;
 
+	bool	m_resizable;
 	int 	m_activeTab;
 	QString m_caption;      // Tab caption, used as the tooltip text on icon tabs
 	quint8 	m_tabbarHeight; // The height of the tab bar

src/gui/InstrumentView.cpp

@@ -34,7 +34,6 @@ InstrumentView::InstrumentView( Instrument * _Instrument, QWidget * _parent ) :
 	PluginView( _Instrument, _parent )
 {
 	setModel( _Instrument );
-	setFixedSize( 250, 250 );
 	setAttribute( Qt::WA_DeleteOnClose, true );
 }
 

src/gui/widgets/TabWidget.cpp

@@ -34,8 +34,10 @@
 #include "gui_templates.h"
 #include "embed.h"
 
-TabWidget::TabWidget( const QString & caption, QWidget * parent, bool usePixmap ) :
+TabWidget::TabWidget(const QString & caption, QWidget * parent, bool usePixmap,
+					 bool resizable) :
 	QWidget( parent ),
+	m_resizable( resizable ),
 	m_activeTab( 0 ),
 	m_caption( caption ),
 	m_usePixmap( usePixmap ),
@@ -81,7 +83,10 @@ void TabWidget::addTab( QWidget * w, const QString & name, const char *pixmap, i
 	m_widgets[idx] = d;
 
 	// Position tab's window
-	w->setFixedSize( width() - 4, height() - m_tabbarHeight );
+	if (!m_resizable)
+	{
+		w->setFixedSize( width() - 4, height() - m_tabbarHeight );
+	}
 	w->move( 2, m_tabbarHeight - 1 );
 	w->hide();
 
@@ -189,17 +194,19 @@ void TabWidget::mousePressEvent( QMouseEvent * me )
 
 void TabWidget::resizeEvent( QResizeEvent * )
 {
-	for( widgetStack::iterator it = m_widgets.begin();
-						it != m_widgets.end(); ++it )
+	if (!m_resizable)
 	{
-		( *it ).w->setFixedSize( width() - 4, height() - m_tabbarHeight );
+		for ( widgetStack::iterator it = m_widgets.begin();
+							it != m_widgets.end(); ++it )
+		{
+			( *it ).w->setFixedSize( width() - 4, height() - m_tabbarHeight );
+		}
 	}
 }
 
 
 
 
-
 void TabWidget::paintEvent( QPaintEvent * pe )
 {
 	QPainter p( this );
@@ -284,7 +291,7 @@ void TabWidget::wheelEvent( QWheelEvent * we )
 	if( we->y() > m_tabheight )
 	{
 		return;
-  }
+	}
 
 	we->accept();
 	int dir = ( we->delta() < 0 ) ? 1 : -1;
@@ -300,6 +307,32 @@ void TabWidget::wheelEvent( QWheelEvent * we )
 	setActiveTab( tab );
 }
 
+
+
+
+// Let parent widgets know how much space this tab widget needs
+QSize TabWidget::minimumSizeHint() const
+{
+	if (m_resizable)
+	{
+		int maxWidth = 0, maxHeight = 0;
+		for ( widgetStack::const_iterator it = m_widgets.begin();
+							it != m_widgets.end(); ++it )
+		{
+			maxWidth = std::max(maxWidth, it->w->width());
+			maxHeight = std::max(maxHeight, it->w->height());
+		}
+		// "-1" :
+		// in "addTab", under "Position tab's window", the widget is
+		// moved up by 1 pixel
+		return QSize(maxWidth + 4, maxHeight + m_tabbarHeight - 1);
+	}
+	else { return QWidget::minimumSizeHint(); }
+}
+
+
+
+
 // Return the color to be used to draw a TabWidget's title text (if any)
 QColor TabWidget::tabTitleText() const
 {

src/tracks/InstrumentTrack.cpp

@@ -1326,7 +1326,7 @@ InstrumentTrackWindow::InstrumentTrackWindow( InstrumentTrackView * _itv ) :
 				this, SLOT( textChanged( const QString & ) ) );
 
 	m_nameLineEdit->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred));
-	nameAndChangeTrackLayout->addWidget(m_nameLineEdit);
+	nameAndChangeTrackLayout->addWidget(m_nameLineEdit, 1);
 
 
 	// set up left/right arrows for changing instrument
@@ -1438,8 +1438,11 @@ InstrumentTrackWindow::InstrumentTrackWindow( InstrumentTrackView * _itv ) :
 	generalSettingsLayout->addLayout( basicControlsLayout );
 
 
-	m_tabWidget = new TabWidget( "", this, true );
-	m_tabWidget->setFixedHeight( INSTRUMENT_HEIGHT + GRAPHIC_TAB_HEIGHT - 4 );
+	m_tabWidget = new TabWidget( "", this, true, true );
+	// "-1" :
+	// in "TabWidget::addTab", under "Position tab's window", the widget is
+	// moved up by 1 pixel
+	m_tabWidget->setMinimumHeight( INSTRUMENT_HEIGHT + GRAPHIC_TAB_HEIGHT - 4 - 1 );
 
 
 	// create tab-widgets
@@ -1471,24 +1474,27 @@ InstrumentTrackWindow::InstrumentTrackWindow( InstrumentTrackView * _itv ) :
 	m_tabWidget->addTab( m_effectView, tr( "Effects" ), "fx_tab", 3 );
 	m_tabWidget->addTab( m_midiView, tr( "MIDI" ), "midi_tab", 4 );
 	m_tabWidget->addTab( m_miscView, tr( "Miscellaneous" ), "misc_tab", 5 );
+	adjustTabSize(m_ssView);
+	adjustTabSize(instrumentFunctions);
+	adjustTabSize(m_effectView);
+	adjustTabSize(m_midiView);
+	adjustTabSize(m_miscView);
 
 	// setup piano-widget
 	m_pianoView = new PianoView( this );
-	m_pianoView->setFixedSize( INSTRUMENT_WIDTH, PIANO_HEIGHT );
+	m_pianoView->setMinimumHeight( PIANO_HEIGHT );
+	m_pianoView->setMaximumHeight( PIANO_HEIGHT );
 
 	vlayout->addWidget( generalSettingsWidget );
-	vlayout->addWidget( m_tabWidget );
+	vlayout->addWidget( m_tabWidget, 1 );
 	vlayout->addWidget( m_pianoView );
-
-
 	setModel( _itv->model() );
 
 	updateInstrumentView();
 
-	setFixedWidth( INSTRUMENT_WIDTH );
 	resize( sizeHint() );
 
-	QMdiSubWindow * subWin = gui->mainWindow()->addWindowedWidget( this );
+	QMdiSubWindow* subWin = gui->mainWindow()->addWindowedWidget( this );
 	Qt::WindowFlags flags = subWin->windowFlags();
 	flags |= Qt::MSWindowsFixedSizeDialogHint;
 	flags &= ~Qt::WindowMaximizeButtonHint;
@@ -1501,7 +1507,7 @@ InstrumentTrackWindow::InstrumentTrackWindow( InstrumentTrackView * _itv ) :
 	systemMenu->actions().at( 4 )->setVisible( false ); // Maximize
 
 	subWin->setWindowIcon( embed::getIconPixmap( "instrument_track" ) );
-	subWin->setFixedSize( subWin->size() );
+	subWin->setMinimumSize( subWin->size() );
 	subWin->hide();
 }
 
@@ -1650,6 +1656,8 @@ void InstrumentTrackWindow::updateInstrumentView()
 
 		modelChanged(); 		// Get the instrument window to refresh
 		m_track->dataChanged(); // Get the text on the trackButton to change
+
+		adjustTabSize(m_instrumentView);
 	}
 }
 
@@ -1837,6 +1845,7 @@ void InstrumentTrackWindow::viewInstrumentInDirection(int d)
 		// scroll the SongEditor/BB-editor to make sure the new trackview label is visible
 		bringToFront->trackContainerView()->scrollToTrackView(bringToFront);
 	}
+	Q_ASSERT(bringToFront);
 	bringToFront->getInstrumentTrackWindow()->setFocus();
 }
 
@@ -1849,4 +1858,12 @@ void InstrumentTrackWindow::viewPrevInstrument()
 	viewInstrumentInDirection(-1);
 }
 
+void InstrumentTrackWindow::adjustTabSize(QWidget *w)
+{
+	// "-1" :
+	// in "TabWidget::addTab", under "Position tab's window", the widget is
+	// moved up by 1 pixel
+	w->setMinimumSize(INSTRUMENT_WIDTH - 4, INSTRUMENT_HEIGHT - 4 - 1);
+}
+
 #include "InstrumentTrack.moc"