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/*****************************************************************************
* Copyright (c) 2018 CEA LIST 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:
* Nicolas FAUVERGUE (CEA LIST) nicolas.fauvergue@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.activity.observables;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.databinding.observable.value.AbstractObservableValue;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.common.core.command.CompositeCommand;
import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.NotationPackage;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.commands.wrappers.GEFtoEMFCommandWrapper;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ForkNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.JoinNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.part.CustomMessages;
/**
* The observable value for the switch observable action.
*
* @since 3.2
*/
public class SwitchOrientationObservableValue extends AbstractObservableValue<Boolean> {
/**
* The transactional editing domain.
*/
private TransactionalEditingDomain editingDomain;
/**
* The activity nodes edit parts to modify.
*/
private List<EditPart> activityNodesEP;
/**
* Constructor.
*
* @param editingDomain
* The transactional editing domain.
* @param activityNodesEP
* The activity nodes edit parts to modify.
*/
public SwitchOrientationObservableValue(final TransactionalEditingDomain editingDomain, final Collection<EditPart> activityNodesEP) {
this.activityNodesEP = new ArrayList<EditPart>(activityNodesEP.size());
this.activityNodesEP.addAll(activityNodesEP);
this.editingDomain = editingDomain;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.databinding.observable.value.IObservableValue#getValueType()
*/
@Override
public Object getValueType() {
return Boolean.class;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doGetValue()
*/
@Override
protected Boolean doGetValue() {
return true;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doSetValue(java.lang.Object)
*/
@Override
protected void doSetValue(final Boolean value) {
CompositeCommand globalCommand = new CompositeCommand(CustomMessages.ForkJoinSegmentSwitchOrientation_actionLabel);
for (Object part : this.activityNodesEP) {
Object view = null;
Figure figure = null;
if (part instanceof JoinNodeEditPart) {
view = ((JoinNodeEditPart) part).getModel();
figure = ((JoinNodeEditPart) part).getPrimaryShape();
} else if (part instanceof ForkNodeEditPart) {
view = ((ForkNodeEditPart) part).getModel();
figure = ((ForkNodeEditPart) part).getPrimaryShape();
}
// append a command for selected part only if correct configuration
if (view instanceof View && figure != null) {
SwitchSegmentOrientation switchCom = new SwitchSegmentOrientation(editingDomain, figure, (View) view);
globalCommand.add(switchCom);
}
}
// execute the command for all parts
if (!globalCommand.isEmpty() && globalCommand.canExecute()) {
editingDomain.getCommandStack().execute(GEFtoEMFCommandWrapper.wrap(new ICommandProxy(globalCommand)));
}
}
/**
* This class is a command which switches the orientation of a figure. The figure's width and height are switched, rotating the figure on its center. (center location kept)
*/
private class SwitchSegmentOrientation extends AbstractTransactionalCommand {
/** The figure to switch */
private Figure selectedFigure = null;
/** The model view for the figure to switch */
private View selectedView = null;
/**
* Construct a switch orientation command.
*
* @param domain
* The transactional editing domain.
* @param figure
* The figure to rotate.
* @param view
* The view which is the model of the figure.
*/
SwitchSegmentOrientation(final TransactionalEditingDomain domain, final Figure figure, final View view) {
super(domain, CustomMessages.ForkJoinSegmentSwitchOrientation_actionLabel, null);
selectedFigure = figure;
selectedView = view;
}
/**
* Execute the command, rotating the figure.
*
* @see org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand#doExecuteWithResult(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
*
* @param monitor
* The progress monitor.
* @param info
* The adapter for information.
* @return The result of the command.
* @throws ExecutionException
*/
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
if (selectedFigure == null || selectedView == null) {
return CommandResult.newCancelledCommandResult();
}
Dimension newSize = selectedFigure.getSize().getTransposed();
Point newLocation = selectedFigure.getLocation().getCopy();
newLocation.translate((newSize.height - newSize.width) / 2, (newSize.width - newSize.height) / 2);
ViewUtil.setStructuralFeatureValue(selectedView, NotationPackage.eINSTANCE.getLocation_X(), newLocation.x);
ViewUtil.setStructuralFeatureValue(selectedView, NotationPackage.eINSTANCE.getLocation_Y(), newLocation.y);
ViewUtil.setStructuralFeatureValue(selectedView, NotationPackage.eINSTANCE.getSize_Width(), newSize.width);
ViewUtil.setStructuralFeatureValue(selectedView, NotationPackage.eINSTANCE.getSize_Height(), newSize.height);
return CommandResult.newOKCommandResult();
}
/**
* @see org.eclipse.emf.workspace.AbstractEMFOperation#canUndo()
* @return true if command can undo.
*/
@Override
public boolean canUndo() {
return selectedFigure != null && selectedView != null;
}
/**
* @see org.eclipse.emf.workspace.AbstractEMFOperation#canRedo()
* @return true if command can redo.
*/
@Override
public boolean canRedo() {
return selectedFigure != null && selectedView != null;
}
/**
* Undo the switch (by switching again).
*
* @see org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand#doUndo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
*
* @param monitor
* The progress monitor.
* @param info
* The adapter for information.
* @return The result of the command.
* @throws ExecutionException
*/
@Override
protected IStatus doUndo(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
return doExecute(monitor, info);
}
/**
* Redo the switch (by switching again).
*
* @see org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand#doRedo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
*
* @param monitor
* The progress monitor.
* @param info
* The adapter for information.
* @return The result of the command.
* @throws ExecutionException
*/
@Override
protected IStatus doRedo(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
return doExecute(monitor, info);
}
}
}
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