Package org.pentaho.reporting.designer.core.inspections.impl

Source Code of org.pentaho.reporting.designer.core.inspections.impl.OverlappingElementsInspection

/*!
* 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.inspections.impl;

import java.util.Map;
import java.util.Set;

import org.pentaho.reporting.designer.core.Messages;
import org.pentaho.reporting.designer.core.ReportDesignerContext;
import org.pentaho.reporting.designer.core.editor.ReportDocumentContext;
import org.pentaho.reporting.designer.core.inspections.InspectionResult;
import org.pentaho.reporting.designer.core.inspections.InspectionResultListener;
import org.pentaho.reporting.designer.core.inspections.LocationInfo;
import org.pentaho.reporting.designer.core.model.CachedLayoutData;
import org.pentaho.reporting.designer.core.model.ModelUtility;
import org.pentaho.reporting.engine.classic.core.Element;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.util.InstanceID;

/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class OverlappingElementsInspection extends AbstractStructureInspection
{
  public OverlappingElementsInspection()
  {
  }

  protected void inspectElement(final ReportDesignerContext designerContext,
                                final ReportDocumentContext reportRenderContext,
                                final InspectionResultListener resultHandler,
                                final String[] columnNames,
                                final ReportElement element)
  {
    if (element instanceof Element == false)
    {
      return;
    }

    final CachedLayoutData data = ModelUtility.getCachedLayoutData((Element) element);
    if (data.isConflictsInTableMode())
    {
      final Map<InstanceID, Set<InstanceID>> conflicts = reportRenderContext.getSharedRenderer().getConflicts();
      final Set<InstanceID> instanceIDs = conflicts.get(element.getObjectID());
      final String message;
      if (instanceIDs == null || instanceIDs.isEmpty())
      {
        message = Messages.getString("OverlappingElementsInspection.ElementConflictsInTableMode", element.getName());
      }
      else
      {
        final String elementName = computeConflictingElementName(reportRenderContext, instanceIDs);
        if (instanceIDs.size() == 1)
        {
          message = Messages.getString("OverlappingElementsInspection.ElementConflictsInTableModeSingle", element.getName(), elementName);
        }
        else
        {
          message = Messages.getString("OverlappingElementsInspection.ElementConflictsInTableModeMultiples",
              element.getName(), elementName, instanceIDs.size());
        }
      }

      resultHandler.notifyInspectionResult(new InspectionResult(this, InspectionResult.Severity.WARNING,
          message, new LocationInfo(element)));
    }

  }

  private String computeConflictingElementName(final ReportDocumentContext reportRenderContext,
                                             final Set<InstanceID> instanceIDs)
  {
    final Map<InstanceID, Element> elementsById = reportRenderContext.getSharedRenderer().getElementsById();
    final InstanceID firstElement = instanceIDs.iterator().next();
    final Element conflictingElement = elementsById.get(firstElement);
    if (conflictingElement == null)
    {
      return Messages.getString("OverlappingElementsInspection.UnidentifiedElement");
    }
    return conflictingElement.getName();
  }

  public boolean isInlineInspection()
  {
    return true;
  }
}
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