| /******************************************************************************* |
| * Copyright (c) 2000, 2010 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.gef.examples.logicdesigner.edit; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Vector; |
| |
| import org.eclipse.swt.accessibility.AccessibleControlEvent; |
| import org.eclipse.swt.accessibility.AccessibleEvent; |
| import org.eclipse.swt.graphics.Image; |
| |
| import org.eclipse.draw2d.ConnectionAnchor; |
| import org.eclipse.draw2d.IFigure; |
| |
| import org.eclipse.gef.AccessibleAnchorProvider; |
| import org.eclipse.gef.AccessibleEditPart; |
| import org.eclipse.gef.EditPolicy; |
| |
| import org.eclipse.gef.examples.logicdesigner.LogicMessages; |
| import org.eclipse.gef.examples.logicdesigner.figures.FigureFactory; |
| import org.eclipse.gef.examples.logicdesigner.figures.LEDFigure; |
| import org.eclipse.gef.examples.logicdesigner.model.LED; |
| |
| /** |
| * Holds the EditPart signifying an LED. |
| */ |
| public class LEDEditPart extends LogicEditPart { |
| |
| private static Image LED_SEL_PRIM_BG; |
| private static Image LED_SEL_SECD_BG; |
| |
| private static Image createImage(String name) { |
| InputStream stream = LEDFigure.class.getResourceAsStream(name); |
| Image image = new Image(null, stream); |
| try { |
| stream.close(); |
| } catch (IOException ioe) { |
| } |
| return image; |
| } |
| |
| protected AccessibleEditPart createAccessible() { |
| return new AccessibleGraphicalEditPart() { |
| |
| public void getName(AccessibleEvent e) { |
| e.result = LogicMessages.LogicPlugin_Tool_CreationTool_LED_Label; |
| } |
| |
| public void getValue(AccessibleControlEvent e) { |
| e.result = Integer.toString(getLEDModel().getValue()); |
| } |
| |
| }; |
| } |
| |
| protected void createEditPolicies() { |
| super.createEditPolicies(); |
| installEditPolicy(EditPolicy.COMPONENT_ROLE, new LEDEditPolicy()); |
| } |
| |
| /** |
| * Returns a newly created Figure to represent this. |
| * |
| * @return Figure of this. |
| */ |
| protected IFigure createFigure() { |
| return FigureFactory.createNewLED(); |
| } |
| |
| public Object getAdapter(Class key) { |
| if (key == AccessibleAnchorProvider.class) |
| return new DefaultAccessibleAnchorProvider() { |
| public List getSourceAnchorLocations() { |
| List list = new ArrayList(); |
| Vector sourceAnchors = getNodeFigure() |
| .getSourceConnectionAnchors(); |
| for (int i = 0; i < sourceAnchors.size(); i++) { |
| ConnectionAnchor anchor = (ConnectionAnchor) sourceAnchors |
| .get(i); |
| list.add(anchor.getReferencePoint() |
| .getTranslated(0, -3)); |
| } |
| return list; |
| } |
| |
| public List getTargetAnchorLocations() { |
| List list = new ArrayList(); |
| Vector targetAnchors = getNodeFigure() |
| .getTargetConnectionAnchors(); |
| for (int i = 0; i < targetAnchors.size(); i++) { |
| ConnectionAnchor anchor = (ConnectionAnchor) targetAnchors |
| .get(i); |
| list.add(anchor.getReferencePoint().getTranslated(0, 3)); |
| } |
| return list; |
| } |
| }; |
| return super.getAdapter(key); |
| } |
| |
| protected Image getBackgroundImage(int state) { |
| if (state == SELECTED_PRIMARY) { |
| if (LED_SEL_PRIM_BG == null) |
| LED_SEL_PRIM_BG = createImage("icons/ledbgprim.gif"); //$NON-NLS-1$ |
| return LED_SEL_PRIM_BG; |
| } |
| if (state == SELECTED) { |
| if (LED_SEL_SECD_BG == null) |
| LED_SEL_SECD_BG = createImage("icons/ledbgsel.gif"); //$NON-NLS-1$ |
| return LED_SEL_SECD_BG; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the Figure of this as a LEDFigure. |
| * |
| * @return LEDFigure of this. |
| */ |
| public LEDFigure getLEDFigure() { |
| return (LEDFigure) getFigure(); |
| } |
| |
| /** |
| * Returns the model of this as a LED. |
| * |
| * @return Model of this as an LED. |
| */ |
| protected LED getLEDModel() { |
| return (LED) getModel(); |
| } |
| |
| public void propertyChange(java.beans.PropertyChangeEvent change) { |
| if (change.getPropertyName().equals(LED.P_VALUE)) |
| refreshVisuals(); |
| else |
| super.propertyChange(change); |
| } |
| |
| /** |
| * Apart from the usual visual update, it also updates the numeric contents |
| * of the LED. |
| */ |
| public void refreshVisuals() { |
| getLEDFigure().setValue(getLEDModel().getValue()); |
| super.refreshVisuals(); |
| } |
| |
| public void setSelected(int i) { |
| super.setSelected(i); |
| refreshVisuals(); |
| } |
| |
| } |