Java Code Examples for org.eclipse.swt.widgets.Composite#addListener()

public GraphicalViewer(Composite parent) {
    canvas = new Canvas(parent, SWT.NONE);
    parent.addListener(SWT.Resize, new Listener() {
        public void handleEvent(Event event) {
            canvas.setBounds(canvas.getParent().getClientArea());
            requestImageRedraw();
        }
    });
    canvas.addPaintListener(new PaintListener() {
        public void paintControl(PaintEvent e) {
            redrawImageIfRequested();
            GC gc = e.gc;
            paintCanvas(gc);
        }

    });
}
 

@Override
protected Composite createDropDown( Composite parent )
{
	Composite composite = new Composite( parent, SWT.BORDER
			| SWT.DOUBLE_BUFFERED );
	GridData gd = new GridData( );
	gd.widthHint = CELL_WIDTH * 8 + MARGIN;
	gd.heightHint = CELL_HEIGHT * 8 + MARGIN;
	composite.setLayoutData( gd );

	composite.addListener( SWT.MouseDown, this );
	composite.addListener( SWT.FocusOut, this );
	composite.addListener( SWT.FocusIn, this );
	composite.addListener( SWT.KeyDown, this );
	composite.addListener( SWT.Traverse, this );
	composite.addPaintListener( this );
	return composite;
}
 

public ItemFrame( Composite parent, Context context )
{
	super( parent, SWT.BORDER );

	this.context = context;
	GridLayout gl = createGridLayout( );
	gl.marginTop = MARGIN;
	gl.marginBottom = MARGIN;
	gl.marginLeft = MARGIN;
	gl.marginRight = MARGIN;
	setLayout( gl );
	view = new Composite( this, SWT.NO_BACKGROUND );
	view.setLayoutData( new GridData( VIEW_WIDTH, VIEW_HEIGHT ) );
	view.addPaintListener( this );
	view.addListener( SWT.MouseDown, this );
	view.addListener( SWT.KeyDown, this );
	view.addListener( SWT.Traverse, this );
	view.addListener( SWT.FocusIn, this );
	view.addListener( SWT.FocusOut, this );

	btnDropDown = new Button( this, SWT.ARROW | SWT.DOWN );
	btnDropDown.setLayoutData( new GridData( BUTTON_WIDTH,
			VIEW_HEIGHT ) );
	btnDropDown.addListener( SWT.Selection, this );
}
 

@Override
protected Control createControl() {
    final Composite container = new Composite(this, SWT.NONE);
    container.setLayout(GridLayoutFactory.fillDefaults().margins(1, 1).create());
    container.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).span(labelAbove ? 2 : 1, 1).create());
    container.setBackground(
            readOnly ? Display.getDefault().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND)
                    : Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
    container.addListener(SWT.Paint, e -> drawBorder(container, e));

    int textStyle = 0;
    if (readOnly) {
        textStyle = SWT.READ_ONLY;
    }

    combo = new CCombo(container, textStyle);
    combo.setData(SWTBOT_WIDGET_ID_KEY, id);
    combo.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create());
    combo.addListener(SWT.FocusIn, event -> redraw(container));
    combo.addListener(SWT.FocusOut, event -> redraw(container));
    combo.setEditable(!readOnly);

    return container;
}
 

/**
 * Creates the grid of labels displaying the days numbers. The grid is composed
 * of a header row, displaying days initials, and 6 row for the days numbers.
 * All labels are empty (no text displayed), the content depending of both the
 * locale (for first day of week) and the current displayed month.
 */
private void createGrid() {
	// Master grid panel
	gridPanel = new Composite(this, SWT.NONE);
	gridLayout = new DateChooserLayout();
	gridPanel.setLayout(gridLayout);
	gridPanel.addListener(SWT.Paint, listener);

	// Weeks numbers panel
	weeksPanel = new Composite(gridPanel, SWT.NONE);
	weeks = new Cell[6];
	for (int i = 0; i < 6; i++) {
		weeks[i] = new Cell(weeksPanel, i);
	}

	// Grid header panel
	headersPanel = new Composite(gridPanel, SWT.NONE);
	headers = new Label[8];
	for (int i = 0; i < 8; i++) {
		headers[i] = new Label(headersPanel, SWT.CENTER);
		headers[i].addListener(SWT.MouseDown, listener);
	}

	// Grid panel
	daysPanel = new Composite(gridPanel, SWT.NONE);
	days = new Cell[42];
	for (int i = 0; i < 42; i++) {
		days[i] = new Cell(daysPanel, i);
		days[i].label.addListener(SWT.MouseUp, listener);
	}
	daysPanel.addListener(SWT.Paint, listener);

	// Footer panel
	todayLabel = new Label(gridPanel, SWT.CENTER);
	todayLabel.addListener(SWT.MouseDoubleClick, listener);
	todayLabel.addListener(SWT.MouseDown, listener);
}
 

/**
 * Creates the header of the calendar. The header contains the label
 * displaying the current month and year, and the two buttons for navigation :
 * previous and next month.
 */
private void createHeader() {
	monthPanel = new Composite(this, SWT.NONE);
	GridLayoutFactory.fillDefaults().numColumns(3).spacing(HEADER_SPACING, 0).margins(HEADER_SPACING, 2).applyTo(monthPanel);
	GridDataFactory.fillDefaults().applyTo(monthPanel);
	monthPanel.addListener(SWT.MouseDown, listener);

	prevMonth = new Button(monthPanel, SWT.ARROW | SWT.LEFT | SWT.FLAT);
	prevMonth.addListener(SWT.MouseUp, listener);
	prevMonth.addListener(SWT.FocusIn, listener);

	currentMonth = new Label(monthPanel, SWT.CENTER);
	currentMonth.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	currentMonth.addListener(SWT.MouseDown, listener);

	nextMonth = new Button(monthPanel, SWT.ARROW | SWT.RIGHT | SWT.FLAT);
	nextMonth.addListener(SWT.MouseUp, listener);
	nextMonth.addListener(SWT.FocusIn, listener);

	monthsMenu = new Menu(getShell(), SWT.POP_UP);
	currentMonth.setMenu(monthsMenu);
	for (int i = 0; i < 12; i++) {
		final MenuItem item = new MenuItem(monthsMenu, SWT.PUSH);
		item.addListener(SWT.Selection, listener);
		item.setData(new Integer(i));
	}
	monthsMenu.addListener(SWT.Show, listener);
}
 

protected Composite createDropDown( Composite parent )
{
	Composite composite = new Composite( parent, SWT.NONE );
	composite.addListener( SWT.FocusOut, this );
	composite.addListener( SWT.KeyDown, this );
	return composite;
}
 

public GanttTester() {
    final Display display = Display.getDefault(); //new Display();
    final Monitor m = display.getMonitors()[0];
    final Shell shell = new Shell(display);
    shell.setText("GanttChart Test Application");
    shell.setLayout(new FillLayout());

    final SashForm sfVSplit = new SashForm(shell, SWT.VERTICAL);
    final SashForm sfHSplit = new SashForm(sfVSplit, SWT.HORIZONTAL);

    final ViewForm vfBottom = new ViewForm(sfVSplit, SWT.NONE);
    _vfChart = new ViewForm(sfHSplit, SWT.NONE);
    final ViewForm rightForm = new ViewForm(sfHSplit, SWT.NONE);

    final ScrolledComposite sc = new ScrolledComposite(rightForm, SWT.V_SCROLL | SWT.H_SCROLL);
    rightForm.setContent(sc);
    sc.setExpandHorizontal(true);
    sc.setExpandVertical(true);
    sc.getVerticalBar().setPageIncrement(150);

    final Composite rightComposite = new Composite(sc, SWT.NONE);
    final GridLayout gl = new GridLayout();
    gl.marginLeft = 0;
    gl.marginTop = 0;
    gl.horizontalSpacing = 0;
    gl.verticalSpacing = 0;
    gl.marginBottom = 0;
    gl.marginHeight = 0;
    gl.marginWidth = 0;
    rightComposite.setLayout(gl);

    sc.setContent(rightComposite);

    rightComposite.addListener(SWT.Resize, new Listener() {

        public void handleEvent(final Event event) {
            sc.setMinSize(rightComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
        }

    });

    sfVSplit.setWeights(new int[] { 91, 9 });
    sfHSplit.setWeights(new int[] { 70, 30 });

    // top left side
    _ganttChart = new GanttChart(_vfChart, SWT.MULTI);
    _vfChart.setContent(_ganttChart);
    _ganttComposite = _ganttChart.getGanttComposite();

    final TabFolder tfRight = new TabFolder(rightComposite, SWT.BORDER);
    final TabItem tiGeneral = new TabItem(tfRight, SWT.NONE);
    tiGeneral.setText("Creation");

    final TabItem tiAdvanced = new TabItem(tfRight, SWT.NONE);
    tiAdvanced.setText("Advanced");

    final TabItem tiEventLog = new TabItem(tfRight, SWT.NONE);
    tiEventLog.setText("Event Log");

    final Composite bottom = new Composite(rightComposite, SWT.NONE);
    bottom.setLayout(new GridLayout());
    createCreateButtons(bottom);

    vfBottom.setContent(createBottom(vfBottom));
    tiGeneral.setControl(createCreationTab(tfRight)); // NOPMD
    tiAdvanced.setControl(createAdvancedTab(tfRight));
    tiEventLog.setControl(createEventLogTab(tfRight));

    shell.setMaximized(true);
    // uncomment to put on right-hand-side monitor
    shell.setLocation(new Point(m.getClientArea().x, 0));

    sc.setMinSize(rightComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

    shell.open();

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
    display.removeListener(SWT.KeyDown, _undoRedoListener);

    shell.dispose();
}
 

/**
 * Fill data
 * @param specLoaded
 */
private void fillData(Spec specLoaded)
{
    if (specLoaded == null)
    {
        hide();
        return;
    } else
    {

        // retrieve the markers associated with the loaded spec
        IMarker[] markers = TLAMarkerHelper.getProblemMarkers(specLoaded.getProject(), null);

        if (markers == null || markers.length == 0)
        {
            hide();
        }

        // sort the markers
        List<IMarker> markersList = new ArrayList<IMarker>(Arrays.asList(markers));
        Collections.sort(markersList, new MarkerComparator());

        // Bug fix: 2 June 2010.  It takes forever if
        // there are a large number of markers, which
        // can easily happen if you remove a definition
        // that's used hundreds of times.
        int iterations = Math.min(markers.length, 20);
        for (int j = 0; j < iterations; j++)
        {
            final IMarker problem = markersList.get(j);

            // listener
            Listener listener = new Listener() {
                // goto marker on click
                public void handleEvent(Event event)
                {
                    TLAMarkerHelper.gotoMarker(problem, ((event.stateMask & SWT.MOD1) != 0));
                }
            };

            // contents of the item
            Composite problemItem = new Composite(bar, SWT.LINE_SOLID);
            problemItem.setLayout(new RowLayout(SWT.VERTICAL));
            problemItem.addListener(SWT.MouseDown, listener);

            String[] lines = problem.getAttribute(IMarker.MESSAGE, "").split("\n");
            for (int i = 0; i < lines.length; i++)
            {
                StyledText styledText = new StyledText(problemItem, SWT.INHERIT_DEFAULT);
                styledText.setEditable(false);
                styledText.setCursor(styledText.getDisplay().getSystemCursor(SWT.CURSOR_HAND));
                styledText.setText(lines[i]);
                styledText.addListener(SWT.MouseDown, listener);

                if (isErrorLine(lines[i], problem))
                {
                    StyleRange range = new StyleRange();
                    range.underline = true;
                    range.foreground = styledText.getDisplay().getSystemColor(SWT.COLOR_RED);
                    range.start = 0;
                    range.length = lines[i].length();
                    styledText.setStyleRange(range);
                }
            }

            ExpandItem item = new ExpandItem(bar, SWT.NONE, 0);
            item.setExpanded(true);
            
            String markerType = TLAMarkerHelper.getType(problem);
            item.setText(AdapterFactory.getMarkerTypeAsText(markerType) + " " + AdapterFactory.getSeverityAsText(problem.getAttribute(IMarker.SEVERITY,
                    IMarker.SEVERITY_ERROR)));
            item.setHeight(problemItem.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
            item.setControl(problemItem);
            item.addListener(SWT.MouseDown, listener);
        }
    }
    return ;
}
 

public void attachToHost( Composite host )
{
	this.host = host;
	host.addListener( ToggleDropDown, this );
}
 

private void createDropDownComponent( int iXLoc, int iYLoc )
{
	if ( !bEnabled )
	{
		return;
	}

	int shellWidth = this.getSize( ).x;
	Shell shell = new Shell( this.getShell( ), SWT.NONE );
	shell.setLayout( new FillLayout( SWT.FILL ) );
	if ( ( getStyle( ) & SWT.RIGHT_TO_LEFT ) != 0 )
	{
		iXLoc -= shellWidth;
	}
	shell.setLocation( iXLoc, iYLoc );

	container = new ScrolledComposite( shell, SWT.V_SCROLL );
	container.setAlwaysShowScrollBars( false );
	container.setExpandHorizontal( true );

	cmpDropDown = new Composite( container, SWT.NONE );
	GridLayout gl = new GridLayout( );
	gl.horizontalSpacing = 0;
	gl.verticalSpacing = 0;
	gl.marginHeight = 0;
	gl.marginWidth = 0;
	cmpDropDown.setLayout( gl );

	Listener listenerCmpDropDown = new Listener( ) {

		public void handleEvent( Event event )
		{
			handleEventCmpDropDown( event );
		}
	};

	cmpDropDown.addListener( SWT.KeyDown, listenerCmpDropDown );
	cmpDropDown.addListener( SWT.FocusOut, listenerCmpDropDown );

	popupCanvases = new ICustomChoice[this.items.length];

	for ( int iC = 0; iC < items.length; iC++ )
	{
		ICustomChoice cnv = createChoice( cmpDropDown, items[iC] );
		GridData gd = new GridData( GridData.FILL_HORIZONTAL );
		cnv.setLayoutData( gd );
		cnv.addListener( SWT.MouseDown, canvasListener );
		cnv.addListener( SWT.MouseEnter, canvasListener );
		cnv.addListener( SWT.KeyDown, canvasListener );

		popupCanvases[iC] = cnv;
		if ( cnvSelection.getValue( ).equals( cnv.getValue( ) ) )
		{
			cnv.notifyListeners( SWT.FocusIn, new Event( ) );
			popupSelection = cnv;
		}
	}

	int width = 0;
	int height = 0;

	int maxWidth = 0;
	Control[] children = container.getChildren( );
	for ( int i = 0; i < children.length; i++ )
	{
		Point point = children[i].computeSize( SWT.DEFAULT, SWT.DEFAULT );
		maxWidth = point.x > maxWidth ? point.x : maxWidth;
		height += point.y;
	}
	
	width = getSize( ).x > maxWidth ? getSize( ).x : maxWidth;
	height = 18 > height ? 18 : height;

	cmpDropDown.setBounds( 0, 0, width, height );

	container.setContent( cmpDropDown );

	if ( height >= 298 )
	{
		int containerWidth = maxWidth
				+ container.getVerticalBar( ).getSize( ).x;
		width = width > containerWidth ? getSize( ).x : containerWidth;
	}

	shell.setSize( width, height < 298 ? height + 2 : 300 );

	shell.layout( );
	shell.open( );
}