ShowGridAction.java example

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pentaho-reporting-master
/*!
* 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 org.pentaho.reporting.designer.core.actions.AbstractDesignerContextAction;
import org.pentaho.reporting.designer.core.actions.ActionMessages;
import org.pentaho.reporting.designer.core.actions.ToggleStateAction;
import org.pentaho.reporting.designer.core.settings.SettingsListener;
import org.pentaho.reporting.designer.core.settings.WorkspaceSettings;

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

/**
 * Todo: Document Me
 *
 * @author Thomas Morgner
 */
public final class ShowGridAction extends AbstractDesignerContextAction
  implements ToggleStateAction, SettingsListener {
  public ShowGridAction() {
    putValue( Action.NAME, ActionMessages.getString( "ShowGridAction.Text" ) );
    putValue( Action.SHORT_DESCRIPTION, ActionMessages.getString( "ShowGridAction.Description" ) );
    putValue( Action.MNEMONIC_KEY, ActionMessages.getOptionalMnemonic( "ShowGridAction.Mnemonic" ) );
    putValue( Action.ACCELERATOR_KEY, ActionMessages.getOptionalKeyStroke( "ShowGridAction.Accelerator" ) );

    WorkspaceSettings.getInstance().addSettingsListener( this );
    settingsChanged();
  }

  public boolean isSelected() {
    return Boolean.TRUE.equals( getValue( Action.SELECTED_KEY ) );
  }

  public void setSelected( final boolean selected ) {
    putValue( Action.SELECTED_KEY, selected );
  }

  public void settingsChanged() {
    putValue( Action.SELECTED_KEY, WorkspaceSettings.getInstance().isShowGrid() );
  }

  /**
   * Invoked when an action occurs.
   */
  public void actionPerformed( final ActionEvent e ) {
    final boolean snap = WorkspaceSettings.getInstance().isShowGrid();
    WorkspaceSettings.getInstance().setShowGrid( !snap );
  }
}