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

Source Code of org.pentaho.reporting.designer.core.actions.elements.InsertCrosstabGroupAction$InsertGroupOnDetailsUndoEntry

/*!
* 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.crosstab.CreateCrosstabDialog;
import org.pentaho.reporting.designer.core.editor.crosstab.CrosstabEditSupport;
import org.pentaho.reporting.designer.core.model.ModelUtility;
import org.pentaho.reporting.designer.core.model.selection.DocumentContextSelectionModel;
import org.pentaho.reporting.designer.core.settings.SettingsListener;
import org.pentaho.reporting.designer.core.settings.WorkspaceSettings;
import org.pentaho.reporting.designer.core.util.IconLoader;
import org.pentaho.reporting.designer.core.util.exceptions.UncaughtExceptionsModel;
import org.pentaho.reporting.designer.core.util.undo.UndoEntry;
import org.pentaho.reporting.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.CrosstabGroup;
import org.pentaho.reporting.engine.classic.core.Group;
import org.pentaho.reporting.engine.classic.core.GroupBody;
import org.pentaho.reporting.engine.classic.core.GroupDataBody;
import org.pentaho.reporting.engine.classic.core.RelationalGroup;
import org.pentaho.reporting.engine.classic.core.SubGroupBody;
import org.pentaho.reporting.engine.classic.core.event.ReportModelEvent;
import org.pentaho.reporting.engine.classic.core.util.InstanceID;
import org.pentaho.reporting.libraries.designtime.swing.LibSwingUtil;

public final class InsertCrosstabGroupAction extends AbstractElementSelectionAction implements SettingsListener
{
  private static class InsertGroupOnDetailsUndoEntry implements UndoEntry
  {
    private InstanceID target;
    private CrosstabGroup newGroup;
    private GroupDataBody oldBody;

    public InsertGroupOnDetailsUndoEntry(final InstanceID target,
                                         final CrosstabGroup newGroup,
                                         final GroupDataBody oldBody)
    {
      this.target = target;
      this.newGroup = newGroup;
      this.oldBody = (GroupDataBody) oldBody.derive();
    }

    public void undo(final ReportDocumentContext renderContext)
    {
      final RelationalGroup selectedGroup = (RelationalGroup)
          ModelUtility.findElementById(renderContext.getReportDefinition(), target);

      selectedGroup.setBody((GroupBody) oldBody.derive());
    }

    public void redo(final ReportDocumentContext renderContext)
    {
      final RelationalGroup selectedGroup = (RelationalGroup)
          ModelUtility.findElementById(renderContext.getReportDefinition(), target);
      CrosstabEditSupport.installCrosstabIntoLastGroup(selectedGroup, newGroup);
    }

    public UndoEntry merge(final UndoEntry newEntry)
    {
      return null;
    }
  }

  private static final long serialVersionUID = 6766753579037904765L;

  public InsertCrosstabGroupAction()

  {
    putValue(Action.NAME, ActionMessages.getString("InsertCrosstabGroupAction.Text"));
    putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("InsertCrosstabGroupAction.Description"));
    putValue(Action.MNEMONIC_KEY, ActionMessages.getOptionalMnemonic("InsertCrosstabGroupAction.Mnemonic"));
    putValue(Action.ACCELERATOR_KEY, ActionMessages.getOptionalKeyStroke("InsertCrosstabGroupAction.Accelerator"));
    putValue(Action.SMALL_ICON, IconLoader.getInstance().getGenericSquare());

    setVisible(WorkspaceSettings.getInstance().isExperimentalFeaturesVisible());
    WorkspaceSettings.getInstance().addSettingsListener(this);
  }

  protected void selectedElementPropertiesChanged(final ReportModelEvent event)
  {
  }

  public void actionPerformed(final ActionEvent e)
  {
    final ReportDocumentContext activeContext = getActiveContext();
    if (activeContext == null)
    {
      return;
    }

    try
    {
      final AbstractReportDefinition report = activeContext.getReportDefinition();
      Object selectedElement = report;
      if (getSelectionModel().getSelectionCount() > 0)
      {
        selectedElement = getSelectionModel().getSelectedElement(0);
      }

      final ReportDesignerContext context = getReportDesignerContext();
      final Component parent = context.getView().getParent();
      final Window window = LibSwingUtil.getWindowAncestor(parent);
      final CreateCrosstabDialog dialog;
      if (window instanceof JDialog)
      {
        dialog = new CreateCrosstabDialog((JDialog) window);
      }
      else if (window instanceof JFrame)
      {
        dialog = new CreateCrosstabDialog((JFrame) window);
      }
      else
      {
        dialog = new CreateCrosstabDialog();
      }


      final CrosstabGroup newGroup = dialog.createCrosstab(context, null);
      if (newGroup == null)
      {
        return;
      }

      if (selectedElement == report)
      {
        final Group rootGroup = report.getRootGroup();
        report.setRootGroup(newGroup);
        activeContext.getUndo().addChange(ActionMessages.getString("InsertCrosstabGroupAction.UndoName"),
            new CrosstabEditSupport.EditGroupOnReportUndoEntry(rootGroup, newGroup));
      }

      if (selectedElement instanceof RelationalGroup == false)
      {
        return;
      }
      final RelationalGroup selectedGroup = (RelationalGroup) selectedElement;

      final GroupBody bodyElement = selectedGroup.getBody();
      if (bodyElement instanceof SubGroupBody)
      {
        final SubGroupBody subGroupBodyReportElement = (SubGroupBody) bodyElement;
        final Group oldBodyContent = subGroupBodyReportElement.getGroup();

        subGroupBodyReportElement.setGroup(newGroup);

        activeContext.getUndo().addChange(ActionMessages.getString("InsertGroupAction.UndoName"),
            new CrosstabEditSupport.EditGroupOnGroupUndoEntry(selectedGroup.getObjectID(), oldBodyContent, newGroup));
      }
      else if (bodyElement instanceof GroupDataBody)
      {
        // we cannot simply insert the group-data body into the crosstab. We need to locate the
        // innermost group and need to place the body there.
        final GroupDataBody oldBody = CrosstabEditSupport.installCrosstabIntoLastGroup(selectedGroup, newGroup);
        getActiveContext().getUndo().addChange(ActionMessages.getString("InsertGroupAction.UndoName"),
            new InsertGroupOnDetailsUndoEntry(selectedGroup.getObjectID(), newGroup, oldBody));

      }
    }
    catch (final Exception ex)
    {
      UncaughtExceptionsModel.getInstance().addException(ex);
    }
  }

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

    final DocumentContextSelectionModel selectionModel = getSelectionModel();
    if (selectionModel == null)
    {
      setEnabled(false);
      return;
    }

    if (selectionModel.getSelectionCount() == 0)
    {
      // there's nothing selected, we can safely add a new group
      // at the report level (AbstractReportDefinition)
      setEnabled(true);
      return;
    }
    if (isSingleElementSelection() == false)
    {
      // there's more than 1 element selected, disable because
      // we can't know where to insert in this case
      setEnabled(false);
      return;
    }

    final AbstractReportDefinition report = getActiveContext().getReportDefinition();
    final Object selectedElement = selectionModel.getSelectedElement(0);
    if (selectedElement == report || selectedElement instanceof RelationalGroup)
    {
      setEnabled(true);
      return;
    }

    setEnabled(false);
  }

  public void settingsChanged()
  {
    setVisible(WorkspaceSettings.getInstance().isExperimentalFeaturesVisible());
  }
}
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