/************************************************************************************
* Copyright (c) 2008 William Chen. *
* *
* 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 *
* *
* Use is subject to the terms of Eclipse Public License v1.0. *
* *
* Contributors: *
* William Chen - initial API and implementation. *
************************************************************************************/
package org.dyno.visual.swing.editors.actions;
import org.dyno.visual.swing.VisualSwingPlugin;
import org.dyno.visual.swing.base.EditorAction;
import org.dyno.visual.swing.designer.VisualDesigner;
import org.dyno.visual.swing.designer.WidgetSelection;
import org.dyno.visual.swing.plugin.spi.WidgetAdapter;
import org.dyno.visual.swing.undo.DeleteOperation;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.operations.IOperationHistory;
import org.eclipse.core.commands.operations.IUndoableOperation;
import org.eclipse.swt.SWT;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.ActionFactory;
/**
*
* DeleteAction
*
* @version 1.0.0, 2008-7-3
* @author William Chen
*/
public class DeleteAction extends EditorAction {
public DeleteAction() {
setId(ActionFactory.DELETE.getId());
setToolTipText(Messages.DeleteAction_Delete_Components);
setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_DELETE));
setDisabledImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_DELETE_DISABLED));
setAccelerator(SWT.DEL);
setRetargetable(true);
setEnabled(false);
}
@Override
public void updateState() {
VisualDesigner designer = getDesigner();
if(designer==null)
return;
WidgetSelection selection = new WidgetSelection(designer.getRoot());
WidgetAdapter rootAdapter = WidgetAdapter.getWidgetAdapter(designer.getRoot());
setEnabled(!selection.isEmpty()
&& !rootAdapter.isSelected());
}
@Override
public void run() {
VisualDesigner designer = getDesigner();
if(designer==null)
return;
IOperationHistory operationHistory = PlatformUI.getWorkbench()
.getOperationSupport().getOperationHistory();
IUndoableOperation operation = new DeleteOperation(designer
.getSelectedComponents(), designer.getRoot());
operation.addContext(designer.getUndoContext());
try {
operationHistory.execute(operation, null, null);
} catch (ExecutionException e) {
VisualSwingPlugin.getLogger().error(e);
}
designer.invalidate();
designer.doLayout();
designer.repaint();
}
@Override
public ActionFactory getActionFactory() {
return ActionFactory.DELETE;
}
}