/*!
* 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.report.preview;

import org.pentaho.reporting.designer.core.ReportDesignerBoot;
import org.pentaho.reporting.designer.core.actions.AbstractReportContextAction;
import org.pentaho.reporting.designer.core.actions.ActionMessages;
import org.pentaho.reporting.designer.core.util.IconLoader;
import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.modules.gui.base.PreviewDialog;
import org.pentaho.reporting.libraries.designtime.swing.LibSwingUtil;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public final class PreviewSwingAction extends AbstractReportContextAction {
  private static class PreviewSizeMonitor extends WindowAdapter {
    private MasterReport report;

    private PreviewSizeMonitor( final MasterReport report ) {
      if ( report == null ) {
        throw new NullPointerException();
      }
      this.report = report;
    }

    /**
     * Invoked when the user attempts to close the window from the window's system menu.
     */
    public void windowClosing( final WindowEvent e ) {
      this.report.setAttribute( ReportDesignerBoot.DESIGNER_NAMESPACE, "preview-dialog-bounds",//$NON-NLS-1$
        LibSwingUtil.rectangleToString( e.getWindow().getBounds() ) );
    }
  }

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

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

    final MasterReport reportElement = getActiveContext().getContextRoot();

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

    dialog.addWindowListener( new PreviewSizeMonitor( reportElement ) );
    dialog.setReportJob( reportElement );
    dialog.pack();

    final Object attribute = reportElement.getAttribute
      ( ReportDesignerBoot.DESIGNER_NAMESPACE, "preview-dialog-bounds" );//$NON-NLS-1$
    if ( attribute instanceof String ) {
      final Rectangle rectangle = LibSwingUtil.parseRectangle( attribute.toString() );
      if ( rectangle != null ) {
        if ( LibSwingUtil.safeRestoreWindow( dialog, rectangle ) ) {
          dialog.setVisible( true );
          return;
        }
      }
    }

    dialog.setSize( 700, 700 );
    LibSwingUtil.centerDialogInParent( dialog );
    dialog.setVisible( true );
  }

}