Java Code Examples for org.eclipse.swt.widgets.Control#getParent()

public static boolean containsFocusControl( Control container )
{
	Control control = container.getDisplay( ).getFocusControl( );

	if ( control == container )
		return true;

	while ( control != null )
	{
		control = control.getParent( );
		if ( control == container )
			return true;
	}

	return false;
}
 

/**
  * Get the scrolled page content of the given control by
  * traversing the parents.
  *
  * @param control the control to get the scrolled page content for
  * @return the scrolled page content or <code>null</code> if none found
  */
 private ScrolledPageContent getParentScrolledComposite(Control control) {
    Control parent= control.getParent();
    while (!(parent instanceof ScrolledPageContent)) {
        parent= parent.getParent();
    }
    if (parent instanceof ScrolledPageContent) {
        return (ScrolledPageContent) parent;
    }
    return null;
}
 

protected ExpandableComposite getParentExpandableComposite(Control control) {
	Control parent= control.getParent();
	while (!(parent instanceof ExpandableComposite) && parent != null) {
		parent= parent.getParent();
	}
	if (parent instanceof ExpandableComposite) {
		return (ExpandableComposite) parent;
	}
	return null;
}
 

protected ScrolledPageContent getParentScrolledComposite(Control control) {
	Control parent= control.getParent();
	while (!(parent instanceof ScrolledPageContent) && parent != null) {
		parent= parent.getParent();
	}
	if (parent instanceof ScrolledPageContent) {
		return (ScrolledPageContent) parent;
	}
	return null;
}
 

private final ExpandableComposite getParentExpandableComposite(Control control) {
	Control parent= control.getParent();
	while (!(parent instanceof ExpandableComposite) && parent != null) {
		parent= parent.getParent();
	}
	if (parent instanceof ExpandableComposite) {
		return (ExpandableComposite) parent;
	}
	return null;
}
 

private boolean isChildrenOfThis( Control control )
{
	while ( control != null )
	{
		if ( control == this )
		{
			return true;
		}
		control = control.getParent( );
	}
	return false;
}
 

private void helpPressed( )
{
	Control c = cmpTop.getDisplay( ).getFocusControl( );
	while ( c != null )
	{
		if ( c.isListening( SWT.Help ) )
		{
			c.notifyListeners( SWT.Help, new Event( ) );
			break;
		}
		c = c.getParent( );
	}
}
 

/**
 * Enable the specific composite
 */
private void enableParent( Control control )
{
	Composite parent = control.getParent( );
	if ( parent == null || parent instanceof Shell )
	{
		return;
	}
	if ( !parent.isEnabled( ) )
	{
		parent.setEnabled( true );
	}
	enableParent( parent );
}
 

@Override
public boolean containsControl(Control control) {
	do {
		if (control == fShell)
			return true;
		if (control instanceof Shell)
			return false;
		control= control.getParent();
	} while (control != null);
	return false;
}
 

/**
 * Setup 1 column layout.
 *
 * @param managedForm the managed form
 * @return the composite
 */
public Composite setup1ColumnLayout(IManagedForm managedForm) {
  final ScrolledForm sform = managedForm.getForm();
  final Composite form = sform.getBody();
  form.setLayout(new GridLayout(1, false)); // this is required !
  Composite xtra = toolkit.createComposite(form);
  xtra.setLayout(new GridLayout(1, false));
  xtra.setLayoutData(new GridData(GridData.FILL_BOTH));

  Control c = form.getParent();
  while (!(c instanceof ScrolledComposite))
    c = c.getParent();
  ((GridData) xtra.getLayoutData()).widthHint = c.getSize().x;
  return xtra;
}
 

/**
 * Enable the specified composite.
 */
private void enableParent( Control control )
{
    Composite parent = control.getParent( );
    if ( parent == null || parent instanceof Shell )
    {
        return;
    }
    if ( !parent.isEnabled( ) )
    {
        parent.setEnabled( true );
    }
    enableParent( parent );
}
 

private Day getDay(MouseEvent e) {
	Control control = (Control) e.widget;
	while (!(control instanceof Day)) {
		control = control.getParent();
	}
	Day day = (Day) control;
	return day;
}
 

public boolean containsControl(Control control)
{
	do
	{
		if (control == fShell)
			return true;
		if (control instanceof Shell)
			return false;
		control = control.getParent();
	}
	while (control != null);
	return false;
}
 

protected ExpandableComposite getParentExpandableComposite(Control control) {
	Control parent = control.getParent();
	while (!(parent instanceof ExpandableComposite) && parent != null) {
		parent = parent.getParent();
	}
	if (parent instanceof ExpandableComposite) {
		return (ExpandableComposite) parent;
	}
	return null;
}
 

protected boolean isFocusAncestorA (Control control) {
    Display display = getDisplay ();
    Control focusControl = display.getFocusControl ();
    while (focusControl != null && focusControl != control) {
        focusControl = focusControl. getParent();
    }
    return control == focusControl;
}
 

private boolean isChildrenOfThis( Control control )
{
	while ( control != null )
	{
		if ( control == this )
		{
			return true;
		}
		control = control.getParent( );
	}
	return false;
}
 

private ScrolledPageContent getParentScrolledComposite(Control control) {
	Control parent = control.getParent();
	while (!(parent instanceof ScrolledPageContent) && parent != null) {
		parent = parent.getParent();
	}
	if (parent instanceof ScrolledPageContent) {
		return (ScrolledPageContent) parent;
	}
	return null;
}
 

public static BaseMdiEntry getEntryFromSkinObject(PluginUISWTSkinObject pluginSkinObject) {
	if (pluginSkinObject instanceof SWTSkinObject) {
		Control control = ((SWTSkinObject) pluginSkinObject).getControl();
		while (control != null && !control.isDisposed()) {
			Object entry = control.getData("BaseMDIEntry");
			if (entry instanceof BaseMdiEntry) {
				BaseMdiEntry mdiEntry = (BaseMdiEntry) entry;
				return mdiEntry;
			}
			control = control.getParent();
		}
	}
	return null;
}
 

/**
 * Setup 2 column layout.
 *
 * @param managedForm the managed form
 * @param w1 the w 1
 * @param w2 the w 2
 * @return the form 2 panel
 */
public Form2Panel setup2ColumnLayout(IManagedForm managedForm, int w1, int w2) {
  final ScrolledForm sform = managedForm.getForm();
  final Composite form = sform.getBody();
  form.setLayout(new GridLayout(1, false)); // this is required !
  Composite xtra = toolkit.createComposite(form);
  xtra.setLayout(new GridLayout(1, false));
  xtra.setLayoutData(new GridData(GridData.FILL_BOTH));
  Control c = xtra.getParent();
  while (!(c instanceof ScrolledComposite))
    c = c.getParent();
  ((GridData) xtra.getLayoutData()).widthHint = c.getSize().x;
  ((GridData) xtra.getLayoutData()).heightHint = c.getSize().y;
  sashForm = new SashForm(xtra, SWT.HORIZONTAL);

  sashForm.setLayoutData(new GridData(GridData.FILL_BOTH)); // needed

  leftPanel = newComposite(sashForm);
  ((GridLayout) leftPanel.getLayout()).marginHeight = 5;
  ((GridLayout) leftPanel.getLayout()).marginWidth = 5;
  rightPanel = newComposite(sashForm);
  ((GridLayout) rightPanel.getLayout()).marginHeight = 5;
  ((GridLayout) rightPanel.getLayout()).marginWidth = 5;
  sashForm.setWeights(new int[] { w1, w2 });
  leftPanelPercent = (float) w1 / (float) (w1 + w2);
  rightPanelPercent = (float) w2 / (float) (w1 + w2);

  rightPanel.addControlListener(new ControlAdapter() {
    @Override
    public void controlResized(ControlEvent e) {
      setSashFormWidths();
    }
  });

  return new Form2Panel(form, leftPanel, rightPanel);
}
 

private void addDropListener(Composite parent) {
	LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();

	DropTargetAdapter dragAdapter = new DropTargetAdapter() {
		@Override
		public void drop(DropTargetEvent event) {
			Control droppedObj = (Control) ((StructuredSelection) transfer.getSelection()).getFirstElement();

			// Get the existing parent of the dragged control
			Composite oldParent = droppedObj.getParent();

			if (oldParent == parent) {
				return;
			}

			if  (droppedObj instanceof Label) {
				System.out.println("Dropped");
			}
			// handle the drop
			if (droppedObj instanceof Label) {
				Label droppedLabel = (Label) droppedObj;
				droppedLabel.setParent(parent); // Change parent
			}

			if (droppedObj instanceof Button) {
				Button droppedButton = (Button) droppedObj;
				droppedButton.setParent(parent); // Change parent
			}

			// request a layout pass
			oldParent.requestLayout();
			// If you change that to layout the layout will be correct
			parent.layout();
		}
	};

	DropTarget dropTarget = new DropTarget(parent, DND.DROP_MOVE | DND.DROP_COPY);
	dropTarget.setTransfer(new Transfer[] { transfer });
	dropTarget.addDropListener(dragAdapter);
}