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

/**
 * Disable eclipse traversal event, and dispatch into our Alt/Ctrl
 * handlers in place of it
 * 
 * @param e the trapped TraverseEvent
 */
protected void handleTraverseEvent(TraverseEvent e) {
	// setting detail to NONE but doit=true disables further processing
	e.detail = SWT.TRAVERSE_NONE;
	e.doit = true;

	Event ee = new Event();
	ee.character = e.character;
	ee.doit = true;
	ee.stateMask = (e.stateMask & SWT.MODIFIER_MASK);
	ee.keyCode = e.keyCode;

	ee.display = e.display;
	ee.widget = e.widget;	// will throw an exception if not valid
	ee.time = e.time;
	ee.data = e.data;

	switch (ee.stateMask) {
		case SWT.CONTROL:	// Emacs+ key binding forces CTRL 
			dispatchCtrl(new VerifyEvent(ee));
			break;
		case SWT.ALT:	// AFAIK MOD3 is always ALT
			dispatchAlt(new VerifyEvent(ee));
			break;
	}
}
 

public void handleEvent(Event event) {
	boolean check = checkKey(event.stateMask, event.keyCode, event.character);
	if (check && isUniversalBinding()) {
		// clear key cache
		resetKeys();
		// check for binding of the form M-1 etc.
		if (Character.isDigit(event.character)) {
			addToCount(event.character);
		} else if (isMinus(event)) {
			resetToMinus(event.keyCode, event.stateMask);
		} else {
			// reset count
			processUniversal();
		}
		updatePrefix();
	} else if (processKey(check,event.keyCode)) {
		leave();
	}
	// setting detail to NONE but doit=true disables further processing
	event.type = SWT.None;
	event.detail = SWT.TRAVERSE_NONE;
	event.doit = true;
}
 

/**
 * On mnemonic handler 
 *
 * @param event
 */
void onMnemonic(TraverseEvent event) {
    char mnemonic = _findMnemonic(text);
    if (mnemonic == '\0') return;
    if (Character.toLowerCase(event.character) != mnemonic) return;
    Composite control = this.getParent();
    while (control != null) {
        Control[] children = control.getChildren();
        int index = 0;
        while (index < children.length) {
            if (children[index] == this) break;
            index++;
        }
        index++;
        if (index < children.length) {
            if (children[index].setFocus()) {
                event.doit = true;
                event.detail = SWT.TRAVERSE_NONE;
            }
        }
        control = control.getParent();
    }
}
 

/**
 * Handle the keyTraversed event on any child control in the table.
 * 
 * @param sender
 *            The row sending the event.
 * @param e
 *            The SWT TraverseEvent
 */
public void keyTraversed(TableRow sender, TraverseEvent e) {
	if (doMakeFocusedRowVisible()) return;

	if (parent.isTraverseOnTabsEnabled()) {
		if (e.detail == SWT.TRAVERSE_TAB_NEXT) {
			if (currentColumn >= sender.getNumColumns() - 1) {
				e.detail = SWT.TRAVERSE_NONE;
				handleNextRowNavigation();
			}
		} else if (e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
			if (currentColumn == 0) {
				e.detail = SWT.TRAVERSE_NONE;
				handlePreviousRowNavigation(sender);
			}
		} else if (e.detail == SWT.TRAVERSE_RETURN) {
			e.detail = SWT.TRAVERSE_NONE;
			if (currentColumn >= sender.getNumColumns() - 1) {
				handleNextRowNavigation();
			} else {
				deferredSetFocus(getControl(currentColumn + 1, currentRow),
						false);
			}
		}
	} else {
		if (e.detail == SWT.TRAVERSE_TAB_NEXT) {
			if (currentColumn >= sender.getNumColumns() - 1) {
				e.detail = SWT.TRAVERSE_NONE;
			}
		} else if (e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
			if (currentColumn == 0) {
				e.detail = SWT.TRAVERSE_NONE;
			}
		}
	}
}
 

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;
}
 

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 onMnemonic( TraverseEvent event )
{
	char mnemonic = _findMnemonic( text );
	if ( mnemonic == '\0' )
		return;
	if ( Character.toLowerCase( event.character ) != mnemonic )
		return;
	Composite control = this.getParent( );
	while ( control != null )
	{
		Control[] children = control.getChildren( );
		int index = 0;
		while ( index < children.length )
		{
			if ( children[index] == this )
				break;
			index++;
		}
		index++;
		if ( index < children.length )
		{
			if ( children[index].setFocus( ) )
			{
				event.doit = true;
				event.detail = SWT.TRAVERSE_NONE;
			}
		}
		control = control.getParent( );
	}
}
 

public void handleEvent(Event event) {
	if (processKey(checkKey(event.stateMask, event.keyCode, event.character),event.keyCode)) {
		leave();
	}
	// setting detail to NONE but doit=true disables further processing
	event.type = SWT.None;
	event.detail = SWT.TRAVERSE_NONE;
	event.doit = true;
}