Package org.pentaho.reporting.designer.core.actions.elements

Source Code of org.pentaho.reporting.designer.core.actions.elements.EditGroupAction

/*!
* 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.elements;

import java.awt.Component;
import java.awt.Window;
import java.awt.event.ActionEvent;
import javax.swing.Action;
import javax.swing.JDialog;
import javax.swing.JFrame;

import org.pentaho.reporting.designer.core.ReportDesignerContext;
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.editor.groups.EditGroupDetailsDialog;
import org.pentaho.reporting.designer.core.model.selection.DocumentContextSelectionModel;
import org.pentaho.reporting.designer.core.util.IconLoader;
import org.pentaho.reporting.designer.core.util.undo.EditGroupUndoEntry;
import org.pentaho.reporting.engine.classic.core.RelationalGroup;
import org.pentaho.reporting.engine.classic.core.event.ReportModelEvent;
import org.pentaho.reporting.libraries.designtime.swing.LibSwingUtil;

public final class EditGroupAction extends AbstractElementSelectionAction
{
  public EditGroupAction()
  {
    putValue(Action.NAME, ActionMessages.getString("EditGroupAction.Text"));
    putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("EditGroupAction.Description"));
    putValue(Action.MNEMONIC_KEY, ActionMessages.getOptionalMnemonic("EditGroupAction.Mnemonic"));
    putValue(Action.ACCELERATOR_KEY, ActionMessages.getOptionalKeyStroke("EditGroupAction.Accelerator"));
    putValue(Action.SMALL_ICON, IconLoader.getInstance().getGroupIcon());
  }

  protected void selectedElementPropertiesChanged(final ReportModelEvent event)
  {
  }

  /**
   * Invoked when an action occurs.
   */
  public void actionPerformed(final ActionEvent e)
  {
    final DocumentContextSelectionModel selectionModel = getSelectionModel();
    if (selectionModel == null)
    {
      return;
    }

    if (selectionModel.getSelectionCount() != 1)
    {
      return;
    }
    final Object selectedElement = selectionModel.getSelectedElement(0);
    if (selectedElement instanceof RelationalGroup == false)
    {
      setEnabled(false);
      return;
    }

    final EditGroupUndoEntry groupUndoEntry = performEditGroup(getReportDesignerContext(), selectedElement, false);
    if (groupUndoEntry != null)
    {
      final ReportDocumentContext activeContext = getActiveContext();
      groupUndoEntry.redo(activeContext);
    }
  }

  public static EditGroupUndoEntry performEditGroup(final ReportDesignerContext context,
                                                    final Object selectedElement,
                                                    final boolean addGroup)
  {
    final Component parent = context.getView().getParent();
    final Window window = LibSwingUtil.getWindowAncestor(parent);
    final EditGroupDetailsDialog dialog;
    if (window instanceof JDialog)
    {
      dialog = new EditGroupDetailsDialog((JDialog) window);
    }
    else if (window instanceof JFrame)
    {
      dialog = new EditGroupDetailsDialog((JFrame) window);
    }
    else
    {
      dialog = new EditGroupDetailsDialog();
    }

    final RelationalGroup group = (RelationalGroup) selectedElement;
    return dialog.editGroup(group, context.getActiveContext(), addGroup);
  }

  protected void updateSelection()
  {
    if (isSingleElementSelection() == false)
    {
      setEnabled(false);
      return;
    }

    final Object selectedElement = getSelectionModel().getSelectedElement(0);
    if (selectedElement instanceof RelationalGroup == false)
    {
      setEnabled(false);
      return;
    }
    setEnabled(true);
  }
}
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