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/*****************************************************************************
* Copyright (c) 2011, 2014 CEA LIST, Christian W. Damus, 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:
* CEA LIST - Initial API and implementation
* Christian W. Damus - bug 399859
*
*****************************************************************************/
package org.eclipse.papyrus.uml.decoratormodel.properties.widgets;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.databinding.observable.ChangeEvent;
import org.eclipse.core.databinding.observable.IChangeListener;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableLayout;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
import org.eclipse.papyrus.infra.widgets.editors.AbstractListEditor;
import org.eclipse.papyrus.uml.decoratormodel.internal.properties.messages.Messages;
import org.eclipse.papyrus.uml.decoratormodel.internal.ui.commands.UnloadDecoratorModelHandler;
import org.eclipse.papyrus.uml.decoratormodel.internal.ui.providers.DecoratorModelLabelProvider;
import org.eclipse.papyrus.uml.decoratormodel.internal.ui.wizards.DuplicateDecoratorModelWizard;
import org.eclipse.papyrus.uml.decoratormodel.internal.ui.wizards.LoadProfileApplicationsWizard;
import org.eclipse.papyrus.uml.decoratormodel.properties.Activator;
import org.eclipse.papyrus.views.properties.widgets.AbstractPropertyEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.statushandlers.StatusManager;
import org.eclipse.uml2.uml.Package;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
/**
* Property sheet editor for the "decorator models" property of a package.
*/
public class DecoratorModelPropertyEditor extends AbstractPropertyEditor {
public DecoratorModelPropertyEditor(Composite parent, int style) {
super(new DecoratorModelEditor(parent, style));
}
//
// Nested types
//
static class DecoratorModelEditor extends AbstractListEditor implements IChangeListener {
private TableViewer table;
private Button loadButton;
private Button unloadButton;
private Button duplicateButton;
private boolean preservingSelection;
protected DecoratorModelEditor(Composite parent, int style) {
super(parent, style, Messages.DecoratorModelPropertyEditor_0);
setLayout(new GridLayout(2, false));
createActionButtons(this);
table = new TableViewer(this, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI);
GridData gd = new GridData(GridData.FILL_BOTH);
gd.minimumHeight = 140;
gd.horizontalSpan = 2;
table.getTable().setLayoutData(gd);
TableLayout tableLayout = new TableLayout(true);
table.getTable().setLayout(tableLayout);
table.getTable().setHeaderVisible(true);
table.getTable().setLinesVisible(true);
table.setContentProvider(ArrayContentProvider.getInstance());
TableViewerColumn stateColumn = new TableViewerColumn(table, SWT.NONE);
stateColumn.getColumn().setText(Messages.DecoratorModelPropertyEditor_1);
stateColumn.setLabelProvider(new StateCellLabelProvider());
tableLayout.addColumnData(new ColumnWeightData(25, 100, true));
TableViewerColumn resourceColumn = new TableViewerColumn(table, SWT.NONE);
resourceColumn.getColumn().setText(Messages.DecoratorModelPropertyEditor_2);
resourceColumn.setLabelProvider(new DelegatingStyledCellLabelProvider(new DecoratorModelLabelProvider()));
tableLayout.addColumnData(new ColumnWeightData(75, 350, true));
table.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
updateButtons();
}
});
table.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
if (loadButton.isEnabled()) {
loadDecoratorModels();
}
}
});
updateButtons();
}
protected void createActionButtons(Composite parent) {
Composite buttonsArea = new Composite(parent, SWT.NONE);
buttonsArea.setLayoutData(new GridData(SWT.END, SWT.DEFAULT, false, false));
buttonsArea.setLayout(new RowLayout());
loadButton = new Button(buttonsArea, SWT.PUSH);
loadButton.setImage(Activator.getDefault().getImage("/icons/full/dtool16/load_resource.png")); //$NON-NLS-1$
loadButton.setToolTipText(Messages.DecoratorModelPropertyEditor_3);
unloadButton = new Button(buttonsArea, SWT.PUSH);
unloadButton.setImage(Activator.getDefault().getImage("/icons/full/ctool16/unload_resource.png")); //$NON-NLS-1$
unloadButton.setToolTipText(Messages.DecoratorModelPropertyEditor_4);
duplicateButton = new Button(buttonsArea, SWT.PUSH);
duplicateButton.setImage(Activator.getDefault().getImage("/icons/full/ctool16/dup_resource.png")); //$NON-NLS-1$
duplicateButton.setToolTipText(Messages.DecoratorModelPropertyEditor_5);
SelectionListener action = new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
action((Button) e.widget);
}
};
loadButton.addSelectionListener(action);
unloadButton.addSelectionListener(action);
duplicateButton.addSelectionListener(action);
}
protected void action(Button button) {
if (button == loadButton) {
loadDecoratorModels();
} else if (button == unloadButton) {
unloadDecoratorModels();
} else if (button == duplicateButton) {
duplicateDecoratorModel();
}
updateButtons();
}
@Override
protected void doBinding() {
super.doBinding();
table.setInput(modelProperty);
modelProperty.addChangeListener(this);
}
public void handleChange(ChangeEvent event) {
if (!isDisposed()) {
preservingSelection(new Runnable() {
public void run() {
table.refresh();
}
});
}
}
protected Package getPackage() {
return (Package) getContextElement();
}
protected void loadDecoratorModels() {
Set<URI> resources = ImmutableSet.copyOf(Iterables.filter(((IStructuredSelection) table.getSelection()).toList(), URI.class));
if (!Iterables.isEmpty(resources)) {
final LoadProfileApplicationsWizard wizard = new LoadProfileApplicationsWizard(false, true);
wizard.init(getPackage(), resources);
preservingSelection(new Runnable() {
public void run() {
if (wizard.isComplete()) {
// Just do it
wizard.performFinish();
} else {
new WizardDialog(getShell(), wizard).open();
}
}
});
}
}
protected void unloadDecoratorModels() {
final Iterable<Resource> resources = Iterables.filter(((IStructuredSelection) table.getSelection()).toList(), Resource.class);
if (!Iterables.isEmpty(resources)) {
final ResourceSet rset = Iterables.getFirst(resources, null).getResourceSet();
preservingSelection(new Runnable() {
public void run() {
try {
UnloadDecoratorModelHandler.unloadResources(Activator.getActiveWorkbenchWindow(), rset, resources);
} catch (ExecutionException e) {
Throwable exc = (e.getCause() != null) ? e.getCause() : e;
IStatus status = new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.DecoratorModelPropertyEditor_6, exc);
Activator.getDefault().getLog().log(status);
StatusManager.getManager().handle(status, StatusManager.SHOW);
}
}
});
}
}
protected void duplicateDecoratorModel() {
final Object selected = ((IStructuredSelection) table.getSelection()).getFirstElement();
if (selected != null) {
preservingSelection(new Runnable() {
public void run() {
DuplicateDecoratorModelWizard wizard = new DuplicateDecoratorModelWizard();
wizard.init(EMFHelper.getResourceSet(getPackage()), selected);
new WizardDialog(getShell(), wizard).open();
}
});
}
}
protected void updateButtons() {
List<?> selection = ((IStructuredSelection) table.getSelection()).toList();
boolean enableLoad = !selection.isEmpty();
boolean enableUnload = enableLoad;
boolean enableDup = selection.size() == 1;
if (enableLoad) {
for (Object next : selection) {
enableLoad = enableLoad && !(next instanceof Resource);
enableUnload = enableUnload && (next instanceof Resource);
}
}
loadButton.setImage(Activator.getDefault().getImage(enableLoad ? "/icons/full/etool16/load_resource.png" : "/icons/full/dtool16/load_resource.png")); //$NON-NLS-1$ //$NON-NLS-2$
loadButton.setEnabled(enableLoad);
unloadButton.setEnabled(enableUnload);
duplicateButton.setEnabled(enableDup);
}
void preservingSelection(Runnable runnable) {
final boolean wasPreservingSelection = preservingSelection;
List<Object> selection = null;
Set<URI> uris = null;
if (!preservingSelection) {
selection = Lists.newArrayList((Iterator<?>) ((IStructuredSelection) table.getSelection()).iterator());
uris = Sets.newHashSet();
for (Object next : selection) {
if (next instanceof Resource) {
next = ((Resource) next).getURI();
}
if (next instanceof URI) {
uris.add((URI) next);
}
}
preservingSelection = true;
}
try {
runnable.run();
} finally {
preservingSelection = wasPreservingSelection;
if (selection != null) {
selection.clear();
for (Object next : modelProperty) {
URI uri = (next instanceof Resource) ? ((Resource) next).getURI() : (next instanceof URI) ? (URI) next : null;
if (uris.contains(uri)) {
selection.add(next);
}
}
table.setSelection(new StructuredSelection(selection), true);
updateButtons();
}
}
}
@Override
public Object getEditableType() {
return List.class;
}
@Override
public void setReadOnly(boolean readOnly) {
// Pass
}
@Override
public boolean isReadOnly() {
return true;
}
}
static class StateCellLabelProvider extends CellLabelProvider {
@Override
public void update(ViewerCell cell) {
cell.setText((cell.getElement() instanceof Resource) ? Messages.DecoratorModelPropertyEditor_7 : Messages.DecoratorModelPropertyEditor_8);
}
}
}
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