/*
* Copyright (C) 2010 Brockmann Consult GmbH (info@brockmann-consult.de)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version.
* 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see http://www.gnu.org/licenses/
*/
package org.esa.snap.ui.layer;
import com.bc.ceres.binding.PropertyContainer;
import com.bc.ceres.glayer.Layer;
import com.bc.ceres.glayer.LayerContext;
import com.bc.ceres.glayer.LayerType;
/**
* This layer source uses the given layer type to construct new layer.
* <p>
* <i>Note: This API is not public yet and may significantly change in the future. Use it at your own risk.</i>
*
* @author Marco Peters
* @version $ Revision $ $ Date $
* @since BEAM 4.6
*/
public class SimpleLayerSource implements LayerSource {
private LayerType layerType;
public SimpleLayerSource(LayerType layerType) {
this.layerType = layerType;
}
@Override
public boolean isApplicable(LayerSourcePageContext pageContext) {
return layerType.isValidFor(pageContext.getLayerContext());
}
@Override
public boolean hasFirstPage() {
return false;
}
@Override
public AbstractLayerSourceAssistantPage getFirstPage(LayerSourcePageContext pageContext) {
return null;
}
@Override
public boolean canFinish(LayerSourcePageContext pageContext) {
return true;
}
@Override
public boolean performFinish(LayerSourcePageContext pageContext) {
LayerContext layerCtx = pageContext.getLayerContext();
Layer layer = layerType.createLayer(layerCtx, new PropertyContainer());
if (layer != null) {
layerCtx.getRootLayer().getChildren().add(layer);
return true;
}
return false;
}
@Override
public void cancel(LayerSourcePageContext pageContext) {
}
}