/*
* Copyright (c) 2013 Data Harmonisation Panel
*
* All rights reserved. This program and the accompanying materials are made
* available under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution. If not, see <http://www.gnu.org/licenses/>.
*
* Contributors:
* Data Harmonisation Panel <http://www.dhpanel.eu>
*/
package eu.esdihumboldt.hale.ui.views.mapping;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.zest.core.viewers.GraphViewer;
/**
* Action to add a filter to the alignment view content provider.
*
* @author Kai Schwierczek
*/
public class FilterCellAction extends Action {
private final GraphViewer viewer;
private final AlignmentViewContentProvider contentProvider;
private final ViewerFilter filter;
private final String activateMessage;
private final String deactivateMessage;
private final boolean inverse;
/**
* Create a filter action. Initially, the filter is disabled.
*
* @param activateMessage the message to show for activating the filer
* @param deactivateMessage the message to show for deactivating the filer
* @param imageDesc the image descriptor
* @param viewer the viewer the filter is to be applied to
* @param contentProvider the content provider of the viewer
* @param filter the filter
* @param initiallyChecked if the action should be initially checked
* @param inverse if the mode is inverse - meaning if the action is checked,
* the filter is disabled
*/
public FilterCellAction(String activateMessage, String deactivateMessage,
ImageDescriptor imageDesc, GraphViewer viewer,
AlignmentViewContentProvider contentProvider, ViewerFilter filter,
boolean initiallyChecked, boolean inverse) {
super(activateMessage, AS_CHECK_BOX);
this.viewer = viewer;
this.contentProvider = contentProvider;
this.filter = filter;
this.inverse = inverse;
this.activateMessage = activateMessage;
this.deactivateMessage = deactivateMessage;
setImageDescriptor(imageDesc);
setChecked(initiallyChecked);
run();
}
/**
* @see Action#run()
*/
@Override
public void run() {
boolean active = isChecked();
if (inverse) {
active = !active;
}
String text = (active) ? (deactivateMessage) : (activateMessage);
setToolTipText(text);
setText(text);
if (active) {
contentProvider.addFilter(filter);
}
else {
contentProvider.removeFilter(filter);
}
viewer.refresh();
// XXX refresh(Object) documentation of GraphViewer lies! no automatic
// layout!
viewer.applyLayout();
}
}