/* uDig - User Friendly Desktop Internet GIS client
* http://udig.refractions.net
* (C) 2004, Refractions Research Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*/
package org.locationtech.udig.tools.edit.impl;
import java.util.List;
import java.util.Set;
import org.locationtech.udig.core.IProvider;
import org.locationtech.udig.core.StaticProvider;
import org.locationtech.udig.tool.edit.internal.Messages;
import org.locationtech.udig.tools.edit.AbstractEditTool;
import org.locationtech.udig.tools.edit.Activator;
import org.locationtech.udig.tools.edit.Behaviour;
import org.locationtech.udig.tools.edit.DefaultEditToolBehaviour;
import org.locationtech.udig.tools.edit.EditToolConfigurationHelper;
import org.locationtech.udig.tools.edit.EditToolHandler;
import org.locationtech.udig.tools.edit.EnablementBehaviour;
import org.locationtech.udig.tools.edit.MutualExclusiveBehavior;
import org.locationtech.udig.tools.edit.activator.DrawGeomsActivator;
import org.locationtech.udig.tools.edit.behaviour.AcceptOnDoubleClickBehaviour;
import org.locationtech.udig.tools.edit.behaviour.CursorControlBehaviour;
import org.locationtech.udig.tools.edit.behaviour.DefaultCancelBehaviour;
import org.locationtech.udig.tools.edit.behaviour.RemoveVertexBehaviour;
import org.locationtech.udig.tools.edit.behaviour.SelectFeatureBehaviour;
import org.locationtech.udig.tools.edit.behaviour.accept.AcceptChangesBehaviour;
import org.locationtech.udig.tools.edit.enablement.ValidToolDetectionActivator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Cursor;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.filter.spatial.Intersects;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.MultiLineString;
import com.vividsolutions.jts.geom.MultiPoint;
import com.vividsolutions.jts.geom.MultiPolygon;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.Polygon;
/**
* A Tool that removes vertices from EditGeoms and selects features.
* @author jones
* @since 1.1.0
*/
public class RemoveVertexTool extends AbstractEditTool {
@Override
protected void initActivators( Set<Activator> activators ) {
Set<Activator> defaults = DefaultEditToolBehaviour.createDefaultEditActivators(DrawGeomsActivator.DrawType.POLYGON);
activators.addAll(defaults);
}
@Override
protected void initAcceptBehaviours( List<Behaviour> acceptBehaviours ) {
MutualExclusiveBehavior mutualExclusive=new MutualExclusiveBehavior();
acceptBehaviours.add(mutualExclusive);
mutualExclusive.getBehaviours().add( new AcceptChangesBehaviour(Polygon.class, false){
@Override
public boolean isValid( EditToolHandler handler ) {
SimpleFeature feature = handler.getContext().getEditManager().getEditFeature();
if( feature==null )
return false;
Class< ? extends Geometry> class1 = ((Geometry)feature.getDefaultGeometry()).getClass();
return super.isValid(handler) && feature!=null &&
(class1==Polygon.class || class1==MultiPolygon.class);
}
});
mutualExclusive.getBehaviours().add( new AcceptChangesBehaviour(LineString.class, false){
@Override
public boolean isValid( EditToolHandler handler ) {
SimpleFeature feature = handler.getContext().getEditManager().getEditFeature();
if( feature==null )
return false;
Class< ? extends Geometry> class1 = ((Geometry)feature.getDefaultGeometry()).getClass();
return super.isValid(handler) && feature!=null &&
(class1==LineString.class || class1==MultiLineString.class);
}
});
mutualExclusive.getBehaviours().add( new AcceptChangesBehaviour(Point.class, false){
@Override
public boolean isValid( EditToolHandler handler ) {
SimpleFeature feature = handler.getContext().getEditManager().getEditFeature();
if( feature==null )
return false;
Class< ? extends Geometry> class1 = ((Geometry)feature.getDefaultGeometry()).getClass();
return super.isValid(handler) && feature!=null &&
(class1==Point.class || class1==MultiPoint.class);
}
});
}
@Override
protected void initCancelBehaviours( List<Behaviour> cancelBehaviours ) {
cancelBehaviours.add(new DefaultCancelBehaviour());
}
@SuppressWarnings("unchecked")
@Override
protected void initEventBehaviours( EditToolConfigurationHelper helper ) {
helper.add(new CursorControlBehaviour(handler, new StaticProvider<String>(Messages.RemoveVertexTool_select_feature),
new CursorControlBehaviour.SystemCursorProvider(SWT.CURSOR_CROSS),
new StaticProvider<String>(Messages.RemoveVertexTool_remove_vertex) , new IProvider<Cursor>(){
public Cursor get(Object... params) {
return null;
}
}, null));
// vertex selection OR geometry selection should not both happen so make them a mutual exclusion behaviour
helper.startMutualExclusiveList();
helper.add(new SelectFeatureBehaviour(new Class[]{Geometry.class}, Intersects.class));
helper.add(new RemoveVertexBehaviour());
helper.stopMutualExclusiveList();
helper.add( new AcceptOnDoubleClickBehaviour() );
helper.done();
}
@Override
protected void initEnablementBehaviours( List<EnablementBehaviour> helper ) {
helper.add(new ValidToolDetectionActivator(new Class[]{Geometry.class, LineString.class, MultiLineString.class,
Polygon.class, MultiPolygon.class, Point.class, MultiPoint.class}));
}
}