Java Code Examples for org.eclipse.swt.SWT#Traverse

public void handleEvent( Event event )
{
	switch ( event.type )
	{
		case SWT.FocusOut :
			focusLost( new FocusEvent( event ) );
			break;

		case SWT.Traverse :
			switch ( event.detail )
			{
				case SWT.TRAVERSE_TAB_NEXT :
				case SWT.TRAVERSE_TAB_PREVIOUS :
					// Indicates getting focus control rather than
					// cursor control
					event.doit = true;
					isPressingKey = true;
			}
			break;

	}
}
 

protected Control createControl(Composite parent) {
	combo = new DateChooserCombo(parent, getStyle());
	combo.setFont(parent.getFont());

	Listener listener = new Listener() {
		public void handleEvent(Event event) {
			switch ( event.type ) {
				case SWT.Traverse :
					if ( event.detail == SWT.TRAVERSE_ESCAPE
							 || event.detail == SWT.TRAVERSE_RETURN ) {
						event.doit = false;
					}
					break;

				case SWT.FocusOut :
					DateChooserComboCellEditor.this.focusLost();
					break;
			}				
		}
	};
	combo.addListener(SWT.Traverse, listener);
	combo.addListener(SWT.FocusOut, listener);

	return combo;
}
 

public void handleEvent(Event event) {
	switch (event.type) {
	case SWT.FocusIn:
	case SWT.FocusOut:
		handleFocus(event.type);
		break;
	case SWT.MouseDoubleClick:
	case SWT.MouseDown:
	case SWT.MouseMove:
	case SWT.MouseUp:
		handleMouseEvents(event);
		break;
	case SWT.Traverse:
		handleTraverse(event);
		break;
	}
}
 

private void setSelectionFromFocusButton(Event event) {
    int fb = getFocusDayButton();
    if (fb >= 0 && fb < dayButtons.length) {
        VButton button = dayButtons[fb];
        int stateMask = event.stateMask;
        setSelectionFromButton(button, stateMask);
        boolean defaultSelection = false;
        if (event.type == SWT.KeyDown && event.stateMask == 0) {
            if (event.keyCode == SWT.KEYPAD_CR
                    || event.character == SWT.CR) {
                defaultSelection = true;
            }
        } else if (event.type == SWT.Traverse && event.stateMask == 0) {
            if (event.keyCode == SWT.TRAVERSE_RETURN) {
                defaultSelection = true;
            }
        }
        cdt.fireSelectionChanged(defaultSelection);
    }
}
 

/**
 * 
 */
private void placeComponents( )
{
	// THE LAYOUT OF THIS COMPOSITE (FILLS EVERYTHING INSIDE IT)
	FillLayout flMain = new FillLayout( );
	flMain.marginHeight = 0;
	flMain.marginWidth = 0;
	setLayout( flMain );

	// THE LAYOUT OF THE OUTER COMPOSITE (THAT GROWS VERTICALLY BUT ANCHORS
	// ITS CONTENT NORTH)
	cmpContentOuter = new Composite( this, SWT.NONE );
	GridLayout glContentOuter = new GridLayout( );
	glContentOuter.verticalSpacing = 0;
	glContentOuter.horizontalSpacing = 0;
	glContentOuter.marginHeight = 0;
	glContentOuter.marginWidth = 0;
	glContentOuter.numColumns = 1;
	cmpContentOuter.setLayout( glContentOuter );

	// THE LAYOUT OF THE INNER COMPOSITE (ANCHORED NORTH AND ENCAPSULATES
	// THE CANVAS + BUTTON)
	cmpContentInner = new Composite( cmpContentOuter, SWT.BORDER );
	GridLayout glContentInner = new GridLayout( );
	glContentInner.verticalSpacing = 0;
	glContentInner.horizontalSpacing = 0;
	glContentInner.marginHeight = 0;
	glContentInner.marginWidth = 0;
	glContentInner.numColumns = 2;
	cmpContentInner.setLayout( glContentInner );
	GridData gdContentInner = new GridData( GridData.FILL_HORIZONTAL );
	cmpContentInner.setLayoutData( gdContentInner );

	// THE CANVAS
	cnvSelection = new FillCanvas( cmpContentInner,
			SWT.NONE,
			this.bAutoEnabled,
			wizardContext == null ? null
					: wizardContext.getImageServiceProvider( ) );
	cnvSelection.setTextIndent( 8 );
	GridData gdCNVSelection = new GridData( GridData.FILL_BOTH );
	gdCNVSelection.heightHint = iSize;
	cnvSelection.setLayoutData( gdCNVSelection );

	initFill( );

	// THE BUTTON
	btnDown = new Button( cmpContentInner, SWT.ARROW | SWT.DOWN );
	GridData gdBDown = new GridData( GridData.FILL );
	gdBDown.verticalAlignment = GridData.BEGINNING;
	gdBDown.widthHint = iSize - 2;
	gdBDown.heightHint = iSize;
	btnDown.setLayoutData( gdBDown );
	btnDown.addSelectionListener( this );

	addDisposeListener( this );

	Listener listener = new Listener( ) {

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

	int[] textEvents = {
			SWT.KeyDown,
			SWT.MouseDown,
			SWT.Traverse,
			SWT.FocusIn,
			SWT.FocusOut
	};
	for ( int i = 0; i < textEvents.length; i++ )
	{
		cnvSelection.addListener( textEvents[i], listener );
	}

}
 

private boolean include(boolean key, int type) {
	if(type == SWT.Selection) {
		return false;
	}
	if(key && (type == SWT.KeyDown || type == SWT.KeyUp || type == SWT.Traverse)) {
		return true;
	}
	if(!key && !(type == SWT.KeyDown || type == SWT.KeyUp || type == SWT.Traverse)) {
		return true;
	}
	return false;
}
 

private void consumeEvent(Event event)
{
	switch (event.type)
	{
		case SWT.KeyDown:
			event.doit = false;
			break;
		case SWT.Traverse:
			event.detail = SWT.TRAVERSE_NONE;
			event.doit = true;
			break;
		default:
	}
	event.type = SWT.NONE;
}
 

void createPopup( Object[] items, int selectionIndex )
{
	// create shell and list
	popup = new Shell( getShell( ), SWT.NO_TRIM | SWT.ON_TOP );

	table = new Table( popup, SWT.SINGLE
			| SWT.V_SCROLL
			| SWT.FULL_SELECTION );
	new TableColumn( table, SWT.LEFT );
	if ( font != null )
		table.setFont( font );
	if ( foreground != null )
		table.setForeground( foreground );
	if ( background != null )
		table.setBackground( background );

	label.setBackground( table.getBackground( ) );
	label.setForeground( table.getForeground( ) );
	label.setFont( table.getFont( ) );

	int[] popupEvents = {
			SWT.Close, SWT.Paint, SWT.Deactivate
	};
	for ( int i = 0; i < popupEvents.length; i++ )
		popup.addListener( popupEvents[i], listener );
	int[] tableEvents = {
			SWT.MouseUp,
			SWT.Selection,
			SWT.Traverse,
			SWT.KeyDown,
			SWT.KeyUp,
			SWT.FocusIn,
			SWT.FocusOut,
			SWT.Dispose
	};
	for ( int i = 0; i < tableEvents.length; i++ )
		table.addListener( tableEvents[i], listener );
}
 

void createPopup( String[] items, int selectionIndex )
{
	// create shell and list
	popup = new Shell( getShell( ), SWT.NO_TRIM | SWT.ON_TOP );
	int style = getStyle( );
	int listStyle = SWT.SINGLE | SWT.V_SCROLL;
	if ( ( style & SWT.FLAT ) != 0 )
		listStyle |= SWT.FLAT;
	if ( ( style & SWT.RIGHT_TO_LEFT ) != 0 )
		listStyle |= SWT.RIGHT_TO_LEFT;
	if ( ( style & SWT.LEFT_TO_RIGHT ) != 0 )
		listStyle |= SWT.LEFT_TO_RIGHT;
	list = new List( popup, listStyle );
	if ( font != null )
		list.setFont( font );
	if ( foreground != null )
		list.setForeground( foreground );
	if ( background != null )
		list.setBackground( background );

	int[] popupEvents = {
			SWT.Close, SWT.Paint, SWT.Deactivate
	};
	for ( int i = 0; i < popupEvents.length; i++ )
		popup.addListener( popupEvents[i], listener );
	int[] listEvents = {
			SWT.MouseUp,
			SWT.Selection,
			SWT.Traverse,
			SWT.KeyDown,
			SWT.KeyUp,
			SWT.FocusIn,
			SWT.Dispose
	};
	for ( int i = 0; i < listEvents.length; i++ )
		list.addListener( listEvents[i], listener );

	if ( items != null )
		list.setItems( items );
	if ( selectionIndex != -1 )
		list.setSelection( selectionIndex );
}
 

public void handleEvent( Event event )
{
	switch ( event.type )
	{
		case SWT.FocusOut :
			if ( event.widget instanceof ColorSelectionCanvas )
			{
				( (ColorSelectionCanvas) event.widget ).redraw( );
			}
			if ( isPopupControl( event.widget ) )
			{
				Control cTmp = isPressingKey ? getDisplay( ).getFocusControl( )
						: getDisplay( ).getCursorControl( );
				// Set default value back
				isPressingKey = false;
				if ( cTmp != null )
				{
					// Condition added to handle behavior under Linux
					if ( isPopupControl( cTmp )
							|| SWT.getPlatform( ).indexOf( "win32" ) == 0//$NON-NLS-1$
							&& ( cTmp.equals( cnvSelection ) || cTmp.equals( btnDown ) ) )
					{
						return;
					}

					if ( cTmp.equals( cnvSelection )
							|| cTmp.equals( btnDown ) )
					{
						bJustFocusLost = true;
					}
				}

				cmpDropDown.getShell( ).close( );
			}
			break;

		case SWT.KeyDown :
			if ( cmpDropDown != null
					&& !cmpDropDown.getShell( ).isDisposed( ) )
			{
				if ( event.keyCode == SWT.ARROW_UP )
				{
					cmpDropDown.getShell( ).close( );
				}
				else if ( event.keyCode == SWT.CR
						|| event.keyCode == SWT.KEYPAD_CR )
				{
					if ( srTransparency != null )
					{
						this.iTransparency = srTransparency.getSelection( );
					}
					if ( fCurrent instanceof ColorDefinition
							&& bTransparencyChanged )
					{
						( (ColorDefinition) fCurrent ).setTransparency( this.iTransparency );
					}
					this.setFill( fCurrent );
					cmpDropDown.getShell( ).close( );
				}
			}
			break;

		case SWT.Traverse :
			switch ( event.detail )
			{
				case SWT.TRAVERSE_TAB_NEXT :
				case SWT.TRAVERSE_TAB_PREVIOUS :
					// Indicates getting focus control rather than cursor
					// control
					isPressingKey = true;
					event.doit = true;
			}
			break;
	}

}
 

void handleEventCanvas( Event event )
{
	switch ( event.type )
	{
		case SWT.FocusIn :
		{
			cnvSelection.redraw( );
			break;
		}
		case SWT.FocusOut :
		{
			cnvSelection.redraw( );
			break;
		}
		case SWT.KeyDown :
		{
			if ( event.keyCode == SWT.KEYPAD_CR
					|| event.keyCode == SWT.CR
					|| event.keyCode == ' ' )
			{
				event.doit = true;
				toggleDropDown( );
			}
			break;
		}
		case SWT.MouseDown :
			if ( !bEnabled )
			{
				return;
			}
			// fireHandleEvent( MOUSE_CLICKED_EVENT );
			toggleDropDown( );
			break;
		case SWT.Traverse :
		{
			switch ( event.detail )
			{
				case SWT.TRAVERSE_ESCAPE :
					getShell( ).close( );
					break;
				case SWT.TRAVERSE_RETURN :
				case SWT.TRAVERSE_TAB_NEXT :
				case SWT.TRAVERSE_TAB_PREVIOUS :
				case SWT.TRAVERSE_ARROW_PREVIOUS :
				case SWT.TRAVERSE_ARROW_NEXT :
					event.doit = true;
					cnvSelection.redraw( );
			}
			break;
		}
	}
}
 

/**
 * creates the popup shell.
 * @param selectionIndex
 */
void createPopup(int selectionIndex) {
	// create shell and table
	popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);

	// set style
	int style = getStyle();
	int tableStyle = SWT.SINGLE | SWT.V_SCROLL;
	if ((style & SWT.FLAT) != 0)
		tableStyle |= SWT.FLAT;
	if ((style & SWT.RIGHT_TO_LEFT) != 0)
		tableStyle |= SWT.RIGHT_TO_LEFT;
	if ((style & SWT.LEFT_TO_RIGHT) != 0)
		tableStyle |= SWT.LEFT_TO_RIGHT;

	// create table
	table = new Table(popup, SWT.SINGLE | SWT.FULL_SELECTION);

	if (font != null)
		table.setFont(font);
	if (foreground != null)
		table.setForeground(foreground);
	if (background != null)
		table.setBackground(background);

	// Add popup listeners
	int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate, SWT.Help };
	for (int i = 0; i < popupEvents.length; i++) {
		popup.addListener(popupEvents[i], listener);
	}

	// add table listeners
	int[] tableEvents = { SWT.MouseMove, SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp,
			SWT.FocusIn, SWT.Dispose };
	for (int i = 0; i < tableEvents.length; i++) {
		table.addListener(tableEvents[i], listener);
	}

	// set the selection
	if (selectionIndex != -1) {
		table.setSelection(selectionIndex);
	}
}
 

/**
 * creates the popup shell.
 * @param selectionIndex
 */
void createPopup(int selectionIndex) {
	// create shell and table
	popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);

	// set style
	int style = getStyle();
	int tableStyle = SWT.SINGLE | SWT.V_SCROLL;
	if ((style & SWT.FLAT) != 0)
		tableStyle |= SWT.FLAT;
	if ((style & SWT.RIGHT_TO_LEFT) != 0)
		tableStyle |= SWT.RIGHT_TO_LEFT;
	if ((style & SWT.LEFT_TO_RIGHT) != 0)
		tableStyle |= SWT.LEFT_TO_RIGHT;

	// create table
	table = new Table(popup, SWT.SINGLE | SWT.FULL_SELECTION);

	if (font != null)
		table.setFont(font);
	if (foreground != null)
		table.setForeground(foreground);
	if (background != null)
		table.setBackground(background);

	// Add popup listeners
	int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate, SWT.Help };
	for (int i = 0; i < popupEvents.length; i++) {
		popup.addListener(popupEvents[i], listener);
	}

	// add table listeners
	int[] tableEvents = { SWT.MouseMove, SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp,
			SWT.FocusIn, SWT.Dispose };
	for (int i = 0; i < tableEvents.length; i++) {
		table.addListener(tableEvents[i], listener);
	}

	// set the selection
	if (selectionIndex != -1) {
		table.setSelection(selectionIndex);
	}
}
 

/**
 * Constructs a new instance of this class given its parent
 * and a style value describing its behavior and appearance.
 * <p>
 * The style value is either one of the style constants defined in
 * class <code>SWT</code> which is applicable to instances of this
 * class, or must be built by <em>bitwise OR</em>'ing together 
 * (that is, using the <code>int</code> "|" operator) two or more
 * of those <code>SWT</code> style constants. The class description
 * lists the style constants that are applicable to the class.
 * Style bits are also inherited from superclasses.
 * </p>
 *
 * @param parent a widget which will be the parent of the new instance (cannot be null)
 * @param style the style of widget to construct
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
 * </ul>
 *
 * @see SWT#BORDER
 * @see SWT#READ_ONLY
 * @see SWT#FLAT
 * @see Widget#getStyle()
 */
public CCombo (Composite parent, int style) {
	super (parent, style = checkStyle (style));
	
	int textStyle = SWT.SINGLE;
	if ((style & SWT.READ_ONLY) != 0) textStyle |= SWT.READ_ONLY;
	if ((style & SWT.FLAT) != 0) textStyle |= SWT.FLAT;
	text = new Text (this, textStyle);
	int arrowStyle = SWT.ARROW | SWT.DOWN;
	if ((style & SWT.FLAT) != 0) arrowStyle |= SWT.FLAT;
	arrow = new Button (this, arrowStyle);

	listener = new Listener () {
		public void handleEvent (Event event) {
			if (popup == event.widget) {
				popupEvent (event);
				return;
			}
			if (text == event.widget) {
				textEvent (event);
				return;
			}
			if (list == event.widget) {
				listEvent (event);
				return;
			}
			if (arrow == event.widget) {
				arrowEvent (event);
				return;
			}
			if (CCombo.this == event.widget) {
				comboEvent (event);
				return;
			}

		}
	};
	
	
	int [] comboEvents = {SWT.Dispose, SWT.Move, SWT.Resize};
	for (int i=0; i<comboEvents.length; i++) this.addListener (comboEvents [i], listener);
	
	int [] textEvents = {SWT.KeyDown, SWT.KeyUp, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.Traverse, SWT.FocusIn, SWT.FocusOut};
	for (int i=0; i<textEvents.length; i++) text.addListener (textEvents [i], listener);
	
	int [] arrowEvents = {SWT.Selection, SWT.FocusIn, SWT.FocusOut};
	for (int i=0; i<arrowEvents.length; i++) arrow.addListener (arrowEvents [i], listener);
	
	createPopup(null, -1);
	initAccessible();
	
}
 

public void handleEvent(Event event) {
	switch (event.type){
	case SWT.Traverse:
		lastTraverse = event.detail;
		if(SWT.TRAVERSE_TAB_NEXT == event.detail || SWT.TRAVERSE_TAB_PREVIOUS == event.detail) {
			if(focusControl != null) {
				event.doit = true;
				focusControl.handleEvent(event);
				if(event.doit) {
					Composite comp = focusControl.getWidget();
					if(SWT.TRAVERSE_TAB_NEXT == event.detail) {
						setFocusToNext(comp);
					} else {
						setFocusToPrev(comp);
					}
				}
			}
		}
		break;
	case SWT.FocusIn:
		setFocusControl(getVControl(event.widget));
		break;
	case SWT.MouseDown:
		mouseButton = event.button;
		mouseDown = new Point(event.x, event.y);
		if(activeControl != null && activeControl.setState(VControl.STATE_MOUSE_DOWN, true)) {
			activeControl.redraw();
		}
		break;
	case SWT.MouseMove:
		if(panels.containsKey(event.widget)) {
			VControl vcontrol = panels.get(event.widget).getControl(event.x, event.y, true);
			if(vcontrol != activeControl && (vcontrol == null || vcontrol.isEnabled())) {
				activate(vcontrol);
			}
		} else if(activeControl != null && event.widget != activeControl.getControl()) {
			activeControl.deactivate();
			activeControl = null;
		}
		break;
	case SWT.MouseUp:
		mouseButton = -1;
		mouseDown = null;
		if(activeControl != null && activeControl.setState(VControl.STATE_MOUSE_DOWN, false)) {
			activeControl.redraw();
		}
		break;
	}
}
 

void createPopup(Collection<CTreeComboItem> items, CTreeComboItem selectedItem) {
	// create shell and list
	popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);
	final int style = getStyle();
	int listStyle = SWT.H_SCROLL | SWT.V_SCROLL | SWT.SINGLE;
	if ((style & SWT.FLAT) != 0) {
		listStyle |= SWT.FLAT;
	}
	if ((style & SWT.RIGHT_TO_LEFT) != 0) {
		listStyle |= SWT.RIGHT_TO_LEFT;
	}
	if ((style & SWT.LEFT_TO_RIGHT) != 0) {
		listStyle |= SWT.LEFT_TO_RIGHT;
	}
	tree = new Tree(popup, listStyle);
	tree.addTreeListener(hookListener);
	if (font != null) {
		tree.setFont(font);
	}
	if (foreground != null) {
		tree.setForeground(foreground);
	}
	if (background != null) {
		tree.setBackground(background);
	}

	final int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate };
	for (int i = 0; i < popupEvents.length; i++) {
		popup.addListener(popupEvents[i], listener);
	}
	final int[] listEvents = { SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp, SWT.FocusIn, SWT.Dispose, SWT.Collapse, SWT.Expand };
	for (int i = 0; i < listEvents.length; i++) {
		tree.addListener(listEvents[i], listener);
	}

	for (final CTreeComboColumn c : columns) {
		final TreeColumn col = new TreeColumn(tree, SWT.NONE);
		c.setRealTreeColumn(col);
	}

	if (items != null) {
		createTreeItems(items.toArray(new CTreeComboItem[0]));
	}

	if (selectedItem != null) {
		tree.setSelection(selectedItem.getRealTreeItem());
	}
}
 

/**
 * The CTreeCombo class represents a selectable user interface object
 * that combines a text field and a tree and issues notification
 * when an item is selected from the tree.
 * <p>
 * Note that although this class is a subclass of <code>Composite</code>,
 * it does not make sense to add children to it, or set a layout on it.
 * </p>
 * <dl>
 * <dt><b>Styles:</b>
 * <dd>BORDER, READ_ONLY, FLAT</dd>
 * <dt><b>Events:</b>
 * <dd>DefaultSelection, Modify, Selection, Verify</dd>
 * </dl>
 */
public CTreeCombo(Composite parent, int style) {
	super(parent, style = checkStyle(style));

	int textStyle = SWT.SINGLE;
	if ((style & SWT.READ_ONLY) != 0) {
		textStyle |= SWT.READ_ONLY;
	}
	if ((style & SWT.FLAT) != 0) {
		textStyle |= SWT.FLAT;
	}
	text = new Text(this, textStyle);
	int arrowStyle = SWT.ARROW | SWT.DOWN;
	if ((style & SWT.FLAT) != 0) {
		arrowStyle |= SWT.FLAT;
	}
	arrow = new Button(this, arrowStyle);

	listener = new Listener() {
		@Override
		public void handleEvent(Event event) {
			if (popup == event.widget) {
				popupEvent(event);
				return;
			}
			if (text == event.widget) {
				textEvent(event);
				return;
			}
			if (tree == event.widget) {
				treeEvent(event);
				return;
			}
			if (arrow == event.widget) {
				arrowEvent(event);
				return;
			}
			if (CTreeCombo.this == event.widget) {
				comboEvent(event);
				return;
			}
			if (getShell() == event.widget) {
				getDisplay().asyncExec(new Runnable() {
					@Override
					public void run() {
						if (isDisposed()) {
							return;
						}
						handleFocus(SWT.FocusOut);
					}
				});
			}
		}
	};
	filter = (event) -> {
		final Shell shell = ((Control) event.widget).getShell();
		if (shell == CTreeCombo.this.getShell()) {
			handleFocus(SWT.FocusOut);
		}
	};

	final int[] comboEvents = { SWT.Dispose, SWT.FocusIn, SWT.Move, SWT.Resize };
	for (int i = 0; i < comboEvents.length; i++) {
		addListener(comboEvents[i], listener);
	}

	final int[] textEvents = { SWT.DefaultSelection, SWT.KeyDown, SWT.KeyUp, SWT.MenuDetect, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.MouseDoubleClick, SWT.MouseWheel, SWT.Traverse, SWT.FocusIn, SWT.Verify };
	for (int i = 0; i < textEvents.length; i++) {
		text.addListener(textEvents[i], listener);
	}

	final int[] arrowEvents = { SWT.MouseDown, SWT.MouseUp, SWT.Selection, SWT.FocusIn };
	for (int i = 0; i < arrowEvents.length; i++) {
		arrow.addListener(arrowEvents[i], listener);
	}

	createPopup(null, null);
	initAccessible();
}
 

void handleEventCanvasSelection( Event event )
{
	switch ( event.type )
	{
		case SWT.FocusIn :
		{
			cnvSelection.redraw( );
			break;
		}
		case SWT.FocusOut :
		{
			cnvSelection.redraw( );
			break;
		}
		case SWT.KeyDown :
		{
			// At this point the widget may have been disposed.
			// If so, do not continue.
			if ( isDisposed( ) )
				break;

			if ( event.keyCode == SWT.ARROW_UP
					|| event.keyCode == SWT.ARROW_DOWN )
			{
				toggleDropDown( );
			}
			break;
		}
		case SWT.Traverse :
		{
			switch ( event.detail )
			{
				case SWT.TRAVERSE_ESCAPE :
					getShell( ).close( );
					break;
				case SWT.TRAVERSE_RETURN :
				case SWT.TRAVERSE_TAB_NEXT :
				case SWT.TRAVERSE_TAB_PREVIOUS :
				case SWT.TRAVERSE_ARROW_PREVIOUS :
				case SWT.TRAVERSE_ARROW_NEXT :
					event.doit = true;
					cnvSelection.redraw( );
			}
			break;
		}
		case SWT.MouseDown :
			toggleDropDown( );
			break;
	}
}
 

/**
 * Manages event at the calendar level.
 *
 * @param event event
 */
protected void calendarEvent(Event event) {
	switch (event.type) {
		case SWT.Traverse:
			switch (event.detail) {
				case SWT.TRAVERSE_ARROW_NEXT:
				case SWT.TRAVERSE_ARROW_PREVIOUS:
				case SWT.TRAVERSE_PAGE_NEXT:
				case SWT.TRAVERSE_PAGE_PREVIOUS:
					event.doit = false;
					break;
				default:
					event.doit = true;
			}
			break;

		case SWT.FocusIn:
			handleFocus(event.type);
			break;

		case SWT.KeyDown: {
			final boolean ctrl = (event.stateMask & SWT.CTRL) != 0;
			switch (event.keyCode) {
				case SWT.ARROW_LEFT:
					if (event.stateMask != 0) {
						return;
					}
					setFocus(focusIndex - 1);
					break;
				case SWT.ARROW_RIGHT:
					if (event.stateMask != 0) {
						return;
					}
					setFocus(focusIndex + 1);
					break;
				case SWT.ARROW_UP:
					if (event.stateMask != 0) {
						return;
					}
					setFocus(focusIndex - 7);
					break;
				case SWT.ARROW_DOWN:
					if (event.stateMask != 0) {
						return;
					}
					setFocus(focusIndex + 7);
					break;
				case SWT.PAGE_DOWN:
					if (event.stateMask != 0 || !navigationEnabled) {
						return;
					}
					changeCurrentMonth(ctrl ? 12 : 1);
					break;
				case SWT.PAGE_UP:
					if (event.stateMask != 0 || !navigationEnabled) {
						return;
					}
					changeCurrentMonth(ctrl ? -12 : -1);
					break;
				case ' ':
					select(focusIndex, event.stateMask);
					break;
				case SWT.HOME:
					if (event.stateMask != 0) {
						return;
					}
					setFocusOnToday(autoSelectOnFooter);
					break;
				default:
					return;
			}
			if (hasFocus) {
				gridRedraw();
			}
			break;
		}

		case SWT.Dispose: {
			final Display display = getDisplay();
			display.removeFilter(SWT.FocusIn, filter);
			display.removeFilter(SWT.KeyDown, filter);
			hasFocus = false;
			break;
		}
	}
}
 

void handleEventCanvasMarkers( Event event )
{
	switch ( event.type )
	{
		case SWT.KeyDown :
		{
			if ( event.keyCode == SWT.ARROW_LEFT )
			{
				if ( iSelectedIndex - 1 >= 0 )
				{
					iSelectedIndex--;
					setEnabledState( );
				}
			}
			else if ( event.keyCode == SWT.ARROW_RIGHT )
			{
				if ( iSelectedIndex + 1 < getMarkers( ).size( ) )
				{
					iSelectedIndex++;
					setEnabledState( );
				}
			}
			else if ( event.keyCode == SWT.ARROW_UP )
			{
				if ( iSelectedIndex - MARKER_ROW_MAX_NUMBER >= 0 )
				{
					iSelectedIndex -= MARKER_ROW_MAX_NUMBER;
					setEnabledState( );
				}
			}
			else if ( event.keyCode == SWT.ARROW_DOWN )
			{
				if ( iSelectedIndex + MARKER_ROW_MAX_NUMBER < getMarkers( ).size( ) )
				{
					iSelectedIndex += MARKER_ROW_MAX_NUMBER;
					setEnabledState( );
				}
			}
			
			else if ( event.keyCode == SWT.CR
					|| event.keyCode == SWT.KEYPAD_CR )
			{
				currentMarkerEditor.setFocus( );
			}
			else if ( event.keyCode == SWT.ESC )
			{
				cnvMarkers.getShell( ).close( );
			}
			break;
		}
		case SWT.Traverse :
		{
			switch ( event.detail )
			{
				case SWT.TRAVERSE_RETURN :
				case SWT.TRAVERSE_TAB_NEXT :
				case SWT.TRAVERSE_TAB_PREVIOUS :
				case SWT.TRAVERSE_ARROW_PREVIOUS :
				case SWT.TRAVERSE_ARROW_NEXT :
					event.doit = true;
					cnvMarkers.redraw( );
			}
			break;
		}
		case SWT.Paint :
			paintControl( new PaintEvent( event ) );
			break;
		case SWT.MouseDown :
			mouseDown( new MouseEvent( event ) );
			break;
	}
}