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/*******************************************************************************
* Copyright (c) 2010 protos software gmbh (http://www.protos.de).
* 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
*******************************************************************************/
package org.eclipse.etrice.ui.behavior.editor;
import java.util.ArrayList;
import java.util.Map;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.etrice.core.room.ActorClass;
import org.eclipse.etrice.core.room.RefinedState;
import org.eclipse.etrice.core.room.RoomFactory;
import org.eclipse.etrice.core.room.State;
import org.eclipse.etrice.core.room.StateGraph;
import org.eclipse.etrice.core.room.util.RoomHelpers;
import org.eclipse.etrice.ui.behavior.Activator;
import org.eclipse.etrice.ui.behavior.support.ContextSwitcher;
import org.eclipse.etrice.ui.behavior.support.SupportUtil;
import org.eclipse.etrice.ui.common.editor.RoomDiagramEditor;
import org.eclipse.graphiti.mm.pictograms.Diagram;
import org.eclipse.graphiti.mm.pictograms.Shape;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.swt.graphics.Image;
public class BehaviorEditor extends RoomDiagramEditor {
public static final String BEHAVIOR_EDITOR_ID = "org.eclipse.etrice.ui.behavior.editor.BehaviorEditor";
public BehaviorEditor() {
super();
}
@Override
public Image getDefaultImage() {
return Activator.getImage("icons/Behavior.gif");
}
@Override
public void initializeGraphicalViewer() {
super.initializeGraphicalViewer();
Command cmd = new RecordingCommand(getEditingDomain()) {
@Override
protected void doExecute() {
ContextSwitcher.switchTop(getDiagramTypeProvider().getDiagram());
}
};
getEditingDomain().getCommandStack().execute(cmd);
getEditingDomain().getCommandStack().flush();
}
public boolean showStateGraph(StateGraph sg) {
URI boUri = EcoreUtil.getURI(sg);
final StateGraph mySG = (StateGraph) getEditingDomain().getResourceSet().getEObject(boUri, true);
if (mySG==null)
return false;
Command cmd = new RecordingCommand(getEditingDomain()) {
@Override
protected void doExecute() {
ContextSwitcher.switchTo(getDiagramTypeProvider().getDiagram(), mySG);
}
};
getEditingDomain().getCommandStack().execute(cmd);
getEditingDomain().getCommandStack().flush();
return true;
}
/**
* @return the actor class of this editor
*/
public ActorClass getActorClass() {
Diagram diagram = getDiagramTypeProvider().getDiagram();
EObject bo = Graphiti.getLinkService().getBusinessObjectForLinkedPictogramElement(diagram);
if (bo instanceof ActorClass)
return (ActorClass) bo;
return null;
}
/* (non-Javadoc)
* @see org.eclipse.graphiti.ui.internal.editor.DiagramEditorInternal#doSave(org.eclipse.core.runtime.IProgressMonitor)
*/
@Override
public void doSave(IProgressMonitor monitor) {
getEditingDomain().getCommandStack().execute(new RecordingCommand(getEditingDomain()) {
protected void doExecute() {
removeEmptySubgraphs();
rebaseRefinedStates();
removeUnusedRefinedStates();
}
});
super.doSave(monitor);
}
/**
*
*/
protected void removeUnusedRefinedStates() {
Diagram diagram = getDiagramTypeProvider().getDiagram();
ActorClass ac = SupportUtil.getActorClass(diagram);
if (ac.getStateMachine()!=null) {
ArrayList<RefinedState> toBeRemoved = new ArrayList<RefinedState>();
for (State s : ac.getStateMachine().getStates()) {
if (s instanceof RefinedState) {
if (isUnused((RefinedState)s))
toBeRemoved.add((RefinedState) s);
}
}
ac.getStateMachine().getStates().removeAll(toBeRemoved);
}
}
/**
* @param s
* @return
*/
private boolean isUnused(RefinedState s) {
if (RoomHelpers.hasDirectSubStructure(s))
return false;
if (RoomHelpers.hasDetailCode(s.getEntryCode()))
return false;
if (RoomHelpers.hasDetailCode(s.getExitCode()))
return false;
return true;
}
protected void removeEmptySubgraphs() {
Diagram diagram = getDiagramTypeProvider().getDiagram();
// if our current context is an empty state graph we go one level up
StateGraph current = ContextSwitcher.getCurrentStateGraph(diagram);
if (current!=null && current.eContainer() instanceof State) {
State s = (State) current.eContainer();
if (!RoomHelpers.hasDirectSubStructure(s)) {
ContextSwitcher.goUp(diagram, current);
}
}
ArrayList<Shape> toBeRemoved = new ArrayList<Shape>();
for (Shape ctxShape : diagram.getChildren()) {
EObject bo = Graphiti.getLinkService().getBusinessObjectForLinkedPictogramElement(ctxShape);
if (bo.eIsProxy()) {
toBeRemoved.add(ctxShape);
continue;
}
assert(bo instanceof StateGraph): "expected state graph";
StateGraph sg = (StateGraph) bo;
if (sg.eContainer() instanceof State) {
State s = (State) sg.eContainer();
if (!RoomHelpers.hasDirectSubStructure(s)) {
EcoreUtil.delete(sg);
toBeRemoved.add(ctxShape);
}
}
}
// need to recursively delete the shapes to avoid dangling HREFs
for (Shape shape : toBeRemoved) {
EcoreUtil.delete(shape, true);
}
}
protected void rebaseRefinedStates() {
ActorClass ac = getActorClass();
if (ac.getStateMachine()==null)
return;
Map<RefinedState, RefinedState> rs2parent = RoomHelpers.getRefinedStatesToRelocate(ac);
// move all to the new context
for (RefinedState rs : rs2parent.keySet()) {
RefinedState parent = rs2parent.get(rs);
if (parent.getSubgraph()==null)
parent.setSubgraph(RoomFactory.eINSTANCE.createStateGraph());
parent.getSubgraph().getStates().add(rs);
}
}
}
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