| /****************************************************************************** |
| * Copyright (c) 2002, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.diagram.ui.handles; |
| |
| import java.beans.PropertyChangeEvent; |
| import java.beans.PropertyChangeListener; |
| |
| import org.eclipse.draw2d.Cursors; |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.Locator; |
| import org.eclipse.draw2d.StackLayout; |
| import org.eclipse.draw2d.TreeSearch; |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.gef.DragTracker; |
| import org.eclipse.gef.handles.AbstractHandle; |
| import org.eclipse.gmf.runtime.diagram.core.listener.DiagramEventBroker; |
| import org.eclipse.gmf.runtime.diagram.core.listener.NotificationListener; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.IResizableCompartmentEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.internal.figures.CollapseFigure; |
| import org.eclipse.gmf.runtime.diagram.ui.internal.properties.Properties; |
| import org.eclipse.gmf.runtime.diagram.ui.internal.tools.CompartmentCollapseTracker; |
| import org.eclipse.gmf.runtime.notation.DrawerStyle; |
| import org.eclipse.gmf.runtime.notation.NotationPackage; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| /** |
| * A handle for collapsing resizable compartments |
| * |
| * @author melaasar |
| */ |
| public class CompartmentCollapseHandle |
| extends AbstractHandle |
| implements PropertyChangeListener, NotificationListener { |
| |
| /** |
| * Positions the supplied figure in its owner's top left corner offset by [1,1] |
| */ |
| private class CollapseHandleLocator implements Locator { |
| public void relocate(IFigure target) { |
| Rectangle theBounds = getOwnerFigure().getClientArea().getCopy(); |
| getOwnerFigure().translateToAbsolute(theBounds); |
| target.translateToRelative(theBounds); |
| target.setLocation(theBounds.getLocation()); |
| } |
| } |
| |
| /** handle figure dimension */ |
| public static Dimension SIZE = new Dimension(11, 11); |
| |
| /** the handle figure */ |
| protected CollapseFigure collapseFigure = null; |
| |
| /** |
| * Creates a new Compartment Collapse Handle |
| * |
| * @param owner |
| */ |
| public CompartmentCollapseHandle(IGraphicalEditPart owner) { |
| setOwner(owner); |
| setLocator(new CollapseHandleLocator()); |
| setCursor(Cursors.ARROW); |
| |
| setSize(SIZE); |
| setLayoutManager(new StackLayout()); |
| |
| if (owner != null && owner.getParent() != null |
| && owner.getParent() instanceof IGraphicalEditPart) |
| add(collapseFigure = new CollapseFigure(((IGraphicalEditPart) owner |
| .getParent()).getFigure())); |
| else |
| add(collapseFigure = new CollapseFigure()); |
| |
| View view = owner.getNotationView(); |
| if (view != null) { |
| DrawerStyle style = (DrawerStyle) view |
| .getStyle(NotationPackage.eINSTANCE.getDrawerStyle()); |
| if (style != null) { |
| collapseFigure.setCollapsed(style.isCollapsed()); |
| return; |
| } |
| } |
| collapseFigure.setCollapsed(false); |
| } |
| |
| /** |
| * @see org.eclipse.draw2d.IFigure#findFigureAt(int, int, TreeSearch) |
| */ |
| public IFigure findFigureAt(int x, int y, TreeSearch search) { |
| IFigure found = super.findFigureAt(x, y, search); |
| return (collapseFigure.equals(found)) ? this : found; |
| } |
| |
| /** |
| * @see org.eclipse.gef.handles.AbstractHandle#createDragTracker() |
| */ |
| protected DragTracker createDragTracker() { |
| return new CompartmentCollapseTracker( |
| (IResizableCompartmentEditPart) getOwner()); |
| } |
| |
| /** |
| * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent) |
| */ |
| public void propertyChange(PropertyChangeEvent evt) { |
| if (evt.getPropertyName().equals(Properties.ID_COLLAPSED)) |
| collapseFigure.setCollapsed( |
| ((Boolean) evt.getNewValue()).booleanValue()); |
| } |
| |
| /** |
| * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent) |
| */ |
| public void notifyChanged(Notification notification) { |
| if (NotationPackage.eINSTANCE.getDrawerStyle_Collapsed()==notification.getFeature()) |
| collapseFigure.setCollapsed(notification.getNewBooleanValue()); |
| } |
| |
| /** |
| * @see org.eclipse.draw2d.IFigure#addNotify() |
| */ |
| public void addNotify() { |
| super.addNotify(); |
| IGraphicalEditPart owner = (IGraphicalEditPart) getOwner(); |
| View view = owner.getNotationView(); |
| if (view!=null){ |
| getDiagramEventBroker().addNotificationListener(owner.getNotationView(),CompartmentCollapseHandle.this); |
| } |
| } |
| |
| /** |
| * @see org.eclipse.draw2d.IFigure#removeNotify() |
| */ |
| public void removeNotify() { |
| IGraphicalEditPart owner = (IGraphicalEditPart) getOwner(); |
| getDiagramEventBroker().removeNotificationListener(owner.getNotationView(),this); |
| super.removeNotify(); |
| } |
| |
| private DiagramEventBroker getDiagramEventBroker() { |
| TransactionalEditingDomain theEditingDomain = ((IGraphicalEditPart) getOwner()) |
| .getEditingDomain(); |
| if (theEditingDomain != null) { |
| return DiagramEventBroker.getInstance(theEditingDomain); |
| } |
| return null; |
| } |
| |
| } |