/*
* 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) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.gui.base.actions;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Locale;
import javax.swing.Icon;
import javax.swing.KeyStroke;
import org.pentaho.reporting.engine.classic.core.modules.gui.base.PreviewPane;
import org.pentaho.reporting.engine.classic.core.modules.gui.base.SwingPreviewModule;
import org.pentaho.reporting.engine.classic.core.modules.gui.commonswing.AbstractActionPlugin;
import org.pentaho.reporting.engine.classic.core.modules.gui.commonswing.ReportEventSource;
import org.pentaho.reporting.engine.classic.core.modules.gui.commonswing.SwingGuiContext;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
import org.pentaho.reporting.libraries.base.util.ResourceBundleSupport;
/**
* Creation-Date: 16.11.2006, 16:34:55
*
* @author Thomas Morgner
*/
public class GoToPreviousPageActionPlugin extends AbstractActionPlugin
implements ControlActionPlugin
{
private class PageUpdateListener implements PropertyChangeListener
{
protected PageUpdateListener()
{
}
public void propertyChange(final PropertyChangeEvent evt)
{
revalidate();
}
}
private ResourceBundleSupport resources;
private ReportEventSource eventSource;
private PageUpdateListener updateListener;
public GoToPreviousPageActionPlugin()
{
updateListener = new PageUpdateListener();
}
public void deinitialize(final SwingGuiContext swingGuiContext)
{
super.deinitialize(swingGuiContext);
swingGuiContext.getEventSource().removePropertyChangeListener(updateListener);
}
public boolean initialize(final SwingGuiContext context)
{
super.initialize(context);
resources = new ResourceBundleSupport(context.getLocale(),
SwingPreviewModule.BUNDLE_NAME, ObjectUtilities.getClassLoader(SwingPreviewModule.class));
eventSource = context.getEventSource();
eventSource.addPropertyChangeListener(updateListener);
revalidate();
return true;
}
private void revalidate()
{
if (eventSource.isPaginated() == false)
{
setEnabled(false);
return;
}
if (eventSource.getPageNumber() <= 1)
{
setEnabled(false);
return;
}
setEnabled(true);
}
protected String getConfigurationPrefix()
{
return "org.pentaho.reporting.engine.classic.core.modules.gui.base.go-to-previous."; //$NON-NLS-1$
}
/**
* Returns the display name for the export action.
*
* @return The display name.
*/
public String getDisplayName()
{
return resources.getString("action.back.name"); //$NON-NLS-1$
}
/**
* Returns the short description for the export action.
*
* @return The short description.
*/
public String getShortDescription()
{
return resources.getString("action.back.description"); //$NON-NLS-1$
}
/**
* Returns the small icon for the export action.
*
* @return The icon.
*/
public Icon getSmallIcon()
{
final Locale locale = getContext().getLocale();
return getIconTheme().getSmallIcon(locale, "action.back.small-icon"); //$NON-NLS-1$
}
/**
* Returns the large icon for the export action.
*
* @return The icon.
*/
public Icon getLargeIcon()
{
final Locale locale = getContext().getLocale();
return getIconTheme().getLargeIcon(locale, "action.back.icon"); //$NON-NLS-1$
}
/**
* Returns the accelerator key for the export action.
*
* @return The accelerator key.
*/
public KeyStroke getAcceleratorKey()
{
return resources.getOptionalKeyStroke("action.back.accelerator"); //$NON-NLS-1$
}
/**
* Returns the mnemonic key code.
*
* @return The code.
*/
public Integer getMnemonicKey()
{
return resources.getOptionalMnemonic("action.back.mnemonic"); //$NON-NLS-1$
}
public boolean configure(final PreviewPane reportPane)
{
reportPane.setPageNumber(Math.max(1, reportPane.getPageNumber() - 1));
return true;
}
}