/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.designer.core.actions.global;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import javax.swing.Action;
import javax.swing.JOptionPane;
import org.pentaho.reporting.designer.core.actions.AbstractElementSelectionAction;
import org.pentaho.reporting.designer.core.actions.ActionMessages;
import org.pentaho.reporting.designer.core.editor.ReportDocumentContext;
import org.pentaho.reporting.designer.core.model.selection.DocumentContextSelectionModel;
import org.pentaho.reporting.designer.core.util.IconLoader;
import org.pentaho.reporting.designer.core.util.dnd.InsertationUtil;
import org.pentaho.reporting.designer.core.util.undo.CompoundUndoEntry;
import org.pentaho.reporting.designer.core.util.undo.UndoEntry;
import org.pentaho.reporting.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.Group;
import org.pentaho.reporting.engine.classic.core.GroupBody;
import org.pentaho.reporting.engine.classic.core.ReportDefinition;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.Section;
import org.pentaho.reporting.engine.classic.core.event.ReportModelEvent;
import org.pentaho.reporting.engine.classic.core.parameters.ParameterDefinitionEntry;
public final class DeleteAction extends AbstractElementSelectionAction
{
public DeleteAction()
{
putValue(Action.NAME, ActionMessages.getString("DeleteAction.Text"));
putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("DeleteAction.Description"));
putValue(Action.MNEMONIC_KEY, ActionMessages.getOptionalMnemonic("DeleteAction.Mnemonic"));
putValue(Action.SMALL_ICON, IconLoader.getInstance().getDeleteIconSmall());
putValue(Action.ACCELERATOR_KEY, ActionMessages.getOptionalKeyStroke("DeleteAction.Accelerator"));
}
/**
* Invoked when an action occurs.
*/
public void actionPerformed(final ActionEvent e)
{
final ReportDocumentContext activeContext = getActiveContext();
if (activeContext == null)
{
return;
}
final DocumentContextSelectionModel selectionModel = activeContext.getSelectionModel();
final Object[] selectedElements = selectionModel.getSelectedElements();
if (isParameter())
{
final String theTitle = ActionMessages.getString("DeleteAction.Warning");
final String theDeleteMessage = ActionMessages.getString("DeleteAction.Confirmation");
final Component theParent = getReportDesignerContext().getView().getParent();
final int result = JOptionPane.showConfirmDialog(theParent, theDeleteMessage, theTitle, JOptionPane.YES_NO_OPTION);
if (result != JOptionPane.YES_OPTION)
{
return;
}
}
final ArrayList<UndoEntry> undos = new ArrayList<UndoEntry>();
for (int i = 0; i < selectedElements.length; i++)
{
final Object element = selectedElements[i];
final UndoEntry undoEntry = InsertationUtil.delete(activeContext, element);
if (undoEntry != null)
{
undos.add(undoEntry);
}
}
if (undos.isEmpty() == false)
{
activeContext.getUndo().addChange(ActionMessages.getString("DeleteAction.Text"),
new CompoundUndoEntry((UndoEntry[]) undos.toArray(new UndoEntry[undos.size()])));
}
}
private boolean isParameter()
{
final DocumentContextSelectionModel selectionModel = getActiveContext().getSelectionModel();
final Object[] selectedElements = selectionModel.getSelectedElements();
for (int i = 0; i < selectedElements.length; i++)
{
if (selectedElements[i] instanceof ParameterDefinitionEntry)
{
return true;
}
}
return false;
}
protected void selectedElementPropertiesChanged(final ReportModelEvent event)
{
}
protected void updateSelection()
{
final DocumentContextSelectionModel selectionModel1 = getSelectionModel();
if (selectionModel1 == null || selectionModel1.getSelectionCount() == 0)
{
setEnabled(false);
return;
}
final Object[] selectedElements = selectionModel1.getSelectedElements();
for (int i = 0; i < selectedElements.length; i++)
{
final Object selectedElement = selectedElements[i];
if (selectedElement instanceof AbstractReportDefinition)
{
// you cannot delete the report itself
if (getActiveContext().getReportDefinition() == selectedElement)
{
setEnabled(false);
return;
}
}
else if (selectedElement instanceof ReportElement)
{
final Section parent = ((ReportElement) selectedElement).getParentSection();
if (parent instanceof ReportDefinition)
{
// prevent the deletion of the top level bands
setEnabled(false);
return;
}
else if (parent instanceof Group || parent instanceof GroupBody)
{
// prevent the deletion of the group headers/footers
setEnabled(false);
return;
}
}
}
setEnabled(true);
}
}