/*
* The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
* for visualizing and manipulating spatial features with geometry and attributes.
*
* Copyright (C) 2003 Vivid Solutions
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jump.workbench.ui.plugin;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import javax.swing.JComponent;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.GeometryCollection;
import com.vividsolutions.jump.feature.Feature;
import com.vividsolutions.jump.util.StringUtil;
import com.vividsolutions.jump.workbench.WorkbenchContext;
import com.vividsolutions.jump.workbench.model.Layer;
import com.vividsolutions.jump.workbench.plugin.AbstractPlugIn;
import com.vividsolutions.jump.workbench.plugin.EnableCheck;
import com.vividsolutions.jump.workbench.plugin.EnableCheckFactory;
import com.vividsolutions.jump.workbench.plugin.MultiEnableCheck;
import com.vividsolutions.jump.workbench.plugin.PlugInContext;
import com.vividsolutions.jump.workbench.ui.EditTransaction;
public class ExplodeSelectedFeaturesPlugIn extends AbstractPlugIn {
public boolean execute(final PlugInContext context) throws Exception {
final ArrayList transactions = new ArrayList();
for (Iterator i =
context
.getLayerViewPanel()
.getSelectionManager()
.getLayersWithSelectedItems()
.iterator();
i.hasNext();
) {
Layer layerWithSelectedItems = (Layer) i.next();
transactions.add(createTransaction(layerWithSelectedItems, context));
}
return EditTransaction.commit(transactions, new EditTransaction.SuccessAction() {
public void run() {
//SuccessActions don't run after redos, which is the behaviour we want here. [Jon Aquino]
for (Iterator i = transactions.iterator(); i.hasNext();) {
EditTransaction transaction = (EditTransaction) i.next();
context
.getLayerViewPanel()
.getSelectionManager()
.getFeatureSelection()
.selectItems(
transaction.getLayer(),
newFeatures(transaction));
}
}
});
}
private Collection newFeatures(EditTransaction transaction) {
ArrayList newFeatures = new ArrayList();
for (int i = 0; i < transaction.size(); i++) {
if (!transaction.getGeometry(i).isEmpty()) {
newFeatures.add(transaction.getFeature(i));
}
}
return newFeatures;
}
private EditTransaction createTransaction(Layer layer, PlugInContext context) {
Collection intactFeatures =
context.getLayerViewPanel().getSelectionManager().getFeaturesWithSelectedItems(layer);
EditTransaction transaction =
new EditTransaction(
new ArrayList(),
getName(),
layer,
isRollingBackInvalidEdits(context),
true,
context.getLayerViewPanel());
for (Iterator i = intactFeatures.iterator(); i.hasNext();) {
Feature intactFeature = (Feature) i.next();
transaction.deleteFeature(intactFeature);
}
for (Iterator i = explode(intactFeatures).iterator(); i.hasNext();) {
Feature explodedFeature = (Feature) i.next();
transaction.createFeature(explodedFeature);
}
return transaction;
}
private List explode(Collection features) {
ArrayList explodedFeatures = new ArrayList();
for (Iterator i = features.iterator(); i.hasNext();) {
Feature feature = (Feature) i.next();
GeometryCollection collection = (GeometryCollection) feature.getGeometry();
feature.setGeometry(collection.getFactory().createGeometryCollection(new Geometry[0]));
for (int j = 0; j < collection.getNumGeometries(); j++) {
Feature explodedFeature = (Feature) feature.clone();
explodedFeature.setGeometry(collection.getGeometryN(j));
explodedFeatures.add(explodedFeature);
}
}
return explodedFeatures;
}
public MultiEnableCheck createEnableCheck(final WorkbenchContext workbenchContext) {
EnableCheckFactory checkFactory = new EnableCheckFactory(workbenchContext);
return new MultiEnableCheck()
.add(checkFactory.createWindowWithLayerViewPanelMustBeActiveCheck())
.add(checkFactory.createAtLeastNFeaturesMustHaveSelectedItemsCheck(1))
.add(checkFactory.createSelectedItemsLayersMustBeEditableCheck())
.add(new EnableCheck() {
public String check(JComponent component) {
Collection featuresWithSelectedItems =
workbenchContext
.getLayerViewPanel()
.getSelectionManager()
.getFeaturesWithSelectedItems();
for (Iterator i = featuresWithSelectedItems.iterator(); i.hasNext();) {
Feature feature = (Feature) i.next();
if (!(feature.getGeometry() instanceof GeometryCollection)) {
return "Selected feature"
+ StringUtil.s(featuresWithSelectedItems.size())
+ " must be geometry collection"
+ StringUtil.s(featuresWithSelectedItems.size());
}
}
return null;
}
});
}
}