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/**
* Copyright (c) 2012 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*/
package org.eclipse.papyrus.infra.table.efacet.common.handlers;
import java.util.List;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.facet.widgets.table.metamodel.v0_2_0.table.Table;
import org.eclipse.emf.facet.widgets.table.ui.ITableWidget;
import org.eclipse.emf.facet.widgets.table.ui.internal.exported.ITableWidgetProvider;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.papyrus.infra.core.editor.CoreMultiDiagramEditor;
import org.eclipse.papyrus.infra.table.efacet.common.editor.AbstractSynchronizedTableEditor;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
//import org.eclipse.emf.facet.widgets.table.ui.internal.exported.ITableWidget;
/**
*
* the abstract class for the move line handler
*
*/
public abstract class AbstractMoveRowHandler extends AbstractHandler {
/**
*
* @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*
* @param event
* @return
* @throws ExecutionException
*/
public final Object execute(final ExecutionEvent event) throws ExecutionException {
final Command cmd = getMoveRowCommand();
if(cmd != null && cmd.canExecute()) {
//we save the current row selection
final List<EObject> selectedRows = getSelectedRowEObject();
getEditingDomain().getCommandStack().execute(cmd);
//we set the old row selection
final ITableWidget widget = getTableWidget();
widget.selectRows(selectedRows, true);
}
return null;
}
/**
*
* @see org.eclipse.core.commands.AbstractHandler#isEnabled()
*
* @return
*/
@Override
public boolean isEnabled() {
return (getSelectedRowEObject().size() == 1) && getMoveRowCommand().canExecute();
}
/**
*
* @return
* a list of the selected rows
*/
protected List<EObject> getSelectedRowEObject() {
final ITableWidget widget = getTableWidget();
return widget.getSelectedRowEObjects();
}
/**
*
* @return
* the current table editor
*/
protected AbstractSynchronizedTableEditor getCurrentTableEditor() {
final IWorkbenchPart page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart();
if(page instanceof CoreMultiDiagramEditor) {
final IEditorPart activeEditor = ((CoreMultiDiagramEditor)page).getActiveEditor();
if(activeEditor instanceof AbstractSynchronizedTableEditor) {
return (AbstractSynchronizedTableEditor)activeEditor;
}
}
return null;
}
/**
*
* @return
* the current nattable widget
*/
protected ITableWidget getTableWidget() {
final AbstractSynchronizedTableEditor editor = getCurrentTableEditor();
if(editor != null) {
final ITableWidgetProvider provider = (ITableWidgetProvider)editor.getAdapter(ITableWidgetProvider.class);
if(provider != null) {
final Object widget = provider.getTableWidget();
if(widget instanceof ITableWidget) {
return (ITableWidget)widget;
}
}
}
return null;
}
/**
*
* @return the editing domain to use for the command
*/
protected TransactionalEditingDomain getEditingDomain() {
return (TransactionalEditingDomain)getCurrentTableEditor().getEditingDomain();
}
/**
*
* @return
* the current table
*/
protected Table getTable() {
return (Table)getCurrentTableEditor().getAdapter(Table.class);
}
/**
*
* @return
* the command to move the lines
*/
protected abstract Command getMoveRowCommand();
}
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