| /******************************************************************************* |
| * Copyright (c) 2003, 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.rulers; |
| |
| import java.beans.PropertyChangeEvent; |
| import java.beans.PropertyChangeListener; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gef.rulers.RulerChangeListener; |
| import org.eclipse.gef.rulers.RulerProvider; |
| |
| import org.eclipse.gef.examples.logicdesigner.model.LogicGuide; |
| import org.eclipse.gef.examples.logicdesigner.model.LogicRuler; |
| import org.eclipse.gef.examples.logicdesigner.model.commands.CreateGuideCommand; |
| import org.eclipse.gef.examples.logicdesigner.model.commands.DeleteGuideCommand; |
| import org.eclipse.gef.examples.logicdesigner.model.commands.MoveGuideCommand; |
| |
| /** |
| * @author Pratik Shah |
| */ |
| public class LogicRulerProvider extends RulerProvider { |
| |
| private LogicRuler ruler; |
| private PropertyChangeListener rulerListener = new PropertyChangeListener() { |
| public void propertyChange(PropertyChangeEvent evt) { |
| if (evt.getPropertyName().equals(LogicRuler.PROPERTY_CHILDREN)) { |
| LogicGuide guide = (LogicGuide) evt.getNewValue(); |
| if (getGuides().contains(guide)) { |
| guide.addPropertyChangeListener(guideListener); |
| } else { |
| guide.removePropertyChangeListener(guideListener); |
| } |
| for (int i = 0; i < listeners.size(); i++) { |
| ((RulerChangeListener) listeners.get(i)) |
| .notifyGuideReparented(guide); |
| } |
| } else { |
| for (int i = 0; i < listeners.size(); i++) { |
| ((RulerChangeListener) listeners.get(i)) |
| .notifyUnitsChanged(ruler.getUnit()); |
| } |
| } |
| } |
| }; |
| private PropertyChangeListener guideListener = new PropertyChangeListener() { |
| public void propertyChange(PropertyChangeEvent evt) { |
| if (evt.getPropertyName().equals(LogicGuide.PROPERTY_CHILDREN)) { |
| for (int i = 0; i < listeners.size(); i++) { |
| ((RulerChangeListener) listeners.get(i)) |
| .notifyPartAttachmentChanged(evt.getNewValue(), |
| evt.getSource()); |
| } |
| } else { |
| for (int i = 0; i < listeners.size(); i++) { |
| ((RulerChangeListener) listeners.get(i)) |
| .notifyGuideMoved(evt.getSource()); |
| } |
| } |
| } |
| }; |
| |
| public LogicRulerProvider(LogicRuler ruler) { |
| this.ruler = ruler; |
| this.ruler.addPropertyChangeListener(rulerListener); |
| List guides = getGuides(); |
| for (int i = 0; i < guides.size(); i++) { |
| ((LogicGuide) guides.get(i)) |
| .addPropertyChangeListener(guideListener); |
| } |
| } |
| |
| public List getAttachedModelObjects(Object guide) { |
| return new ArrayList(((LogicGuide) guide).getParts()); |
| } |
| |
| public Command getCreateGuideCommand(int position) { |
| return new CreateGuideCommand(ruler, position); |
| } |
| |
| public Command getDeleteGuideCommand(Object guide) { |
| return new DeleteGuideCommand((LogicGuide) guide, ruler); |
| } |
| |
| public Command getMoveGuideCommand(Object guide, int pDelta) { |
| return new MoveGuideCommand((LogicGuide) guide, pDelta); |
| } |
| |
| public int[] getGuidePositions() { |
| List guides = getGuides(); |
| int[] result = new int[guides.size()]; |
| for (int i = 0; i < guides.size(); i++) { |
| result[i] = ((LogicGuide) guides.get(i)).getPosition(); |
| } |
| return result; |
| } |
| |
| public Object getRuler() { |
| return ruler; |
| } |
| |
| public int getUnit() { |
| return ruler.getUnit(); |
| } |
| |
| public void setUnit(int newUnit) { |
| ruler.setUnit(newUnit); |
| } |
| |
| public int getGuidePosition(Object guide) { |
| return ((LogicGuide) guide).getPosition(); |
| } |
| |
| public List getGuides() { |
| return ruler.getGuides(); |
| } |
| |
| } |