/*!
* 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.editor.palette;
import java.awt.Image;
import java.awt.Point;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragSource;
import java.awt.image.BufferedImage;
import java.beans.BeanInfo;
import java.util.Locale;
import javax.swing.BorderFactory;
import javax.swing.ButtonModel;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import org.pentaho.reporting.designer.core.ReportDesignerContext;
import org.pentaho.reporting.designer.core.actions.elements.InsertElementAction;
import org.pentaho.reporting.designer.core.util.dnd.ElementMetaDataTransferable;
import org.pentaho.reporting.engine.classic.core.event.ReportModelEvent;
import org.pentaho.reporting.engine.classic.core.metadata.ElementMetaData;
import org.pentaho.reporting.engine.classic.core.metadata.ElementTypeRegistry;
/**
* A component holding the report. It contains the lineals, zoom controller in the upper left corner and as a viewport,
* it contains the report-layout component.
*
* @author Ezequiel Cuellar
*/
public class PaletteButton extends JButton implements DragGestureListener
{
private static class AlwaysActiveInsertElementAction extends InsertElementAction
{
private AlwaysActiveInsertElementAction(final ElementMetaData metaData)
{
super(metaData);
}
protected void selectedElementPropertiesChanged(final ReportModelEvent event)
{
}
protected void updateSelection()
{
setEnabled(getActiveContext() != null);
}
}
private String elementName;
private static final BufferedImage EMPTY_DRAG_IMAGE = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
public PaletteButton(final ElementMetaData elementMetaData,
final ReportDesignerContext context)
{
if (elementMetaData == null)
{
throw new NullPointerException();
}
elementName = elementMetaData.getName();
putClientProperty("hideActionText", Boolean.TRUE); // NON-NLS
final DragSource dragSource = new DragSource();
dragSource.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY, this);
final InsertElementAction action = new AlwaysActiveInsertElementAction(elementMetaData);
action.setReportDesignerContext(context);
setAction(action);
final Image icon = elementMetaData.getIcon(Locale.getDefault(), BeanInfo.ICON_COLOR_16x16);
if (icon != null)
{
setIcon(new ImageIcon(icon));
}
else
{
setText(elementMetaData.getDisplayName(Locale.getDefault()));
}
setToolTipText(elementMetaData.getDescription(Locale.getDefault()));
setFocusable(false);
setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
}
public void dragGestureRecognized(final DragGestureEvent anEvent)
{
final ElementMetaData elementMetaData = ElementTypeRegistry.getInstance().getElementType(elementName);
final ElementMetaDataTransferable transferable = new ElementMetaDataTransferable(elementMetaData);
anEvent.startDrag(DragSource.DefaultCopyNoDrop, EMPTY_DRAG_IMAGE, new Point(), transferable, null);
final ButtonModel model = getModel();
model.setArmed(false);
model.setPressed(false);
}
}