/*
* Copyright (c) 2016 Vivid Solutions.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
*
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.locationtech.jtstest.testbuilder.ui.tools;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.MouseEvent;
import javax.swing.SwingUtilities;
import org.locationtech.jts.awt.GeometryCollectionShape;
import org.locationtech.jts.geom.*;
import org.locationtech.jtstest.testbuilder.AppCursors;
import org.locationtech.jtstest.testbuilder.IconLoader;
import org.locationtech.jtstest.testbuilder.geom.*;
/**
* @version 1.7
*/
public class EditVertexTool
extends IndicatorTool
{
private static EditVertexTool instance = null;
//Point2D currentIndicatorLoc = null;
Coordinate currentVertexLoc = null;
private Coordinate selectedVertexLocation = null;
private Coordinate[] adjVertices = null;
public static EditVertexTool getInstance() {
if (instance == null)
instance = new EditVertexTool();
return instance;
}
private EditVertexTool() {
super(AppCursors.EDIT_VERTEX);
}
public void mousePressed(MouseEvent e) {
currentVertexLoc = null;
if (SwingUtilities.isRightMouseButton(e))
return;
// initiate moving a vertex
Coordinate mousePtModel = toModelCoordinate(e.getPoint());
double tolModel = getModelSnapTolerance();
selectedVertexLocation = geomModel().locateVertexPt(mousePtModel, tolModel);
if (selectedVertexLocation != null) {
adjVertices = geomModel().findAdjacentVertices(selectedVertexLocation);
currentVertexLoc = selectedVertexLocation;
redrawIndicator();
}
}
public void mouseReleased(MouseEvent e) {
if (SwingUtilities.isRightMouseButton(e))
return;
clearIndicator();
// finish the move of the vertex
if (selectedVertexLocation != null) {
Coordinate newLoc = toModelSnapped(e.getPoint());
geomModel().moveVertex(selectedVertexLocation, newLoc);
}
}
public void mouseDragged(MouseEvent e) {
currentVertexLoc = toModelSnapped(e.getPoint());
if (selectedVertexLocation != null)
redrawIndicator();
}
public void mouseClicked(MouseEvent e) {
if (! SwingUtilities.isRightMouseButton(e))
return;
Coordinate mousePtModel = toModelCoordinate(e.getPoint());
double tolModel = getModelSnapTolerance();
boolean isMove = ! e.isControlDown();
if (isMove) {
GeometryLocation geomLoc = geomModel().locateNonVertexPoint(mousePtModel, tolModel);
//System.out.println("Testing: insert vertex at " + geomLoc);
if (geomLoc != null) {
geomModel().setGeometry(geomLoc.insert());
}
}
else { // is a delete
GeometryLocation geomLoc = geomModel().locateVertex(mousePtModel, tolModel);
//System.out.println("Testing: delete vertex at " + geomLoc);
if (geomLoc != null) {
geomModel().setGeometry(geomLoc.delete());
}
}
}
protected Shape getShape()
{
GeometryCollectionShape ind = new GeometryCollectionShape();
Point2D currentIndicatorLoc = toView(currentVertexLoc);
ind.add(getIndicatorCircle(currentIndicatorLoc));
if (adjVertices != null) {
for (int i = 0; i < adjVertices.length; i++) {
GeneralPath line = new GeneralPath();
line.moveTo((float) currentIndicatorLoc.getX(), (float) currentIndicatorLoc.getY());
Point2D pt = toView(adjVertices[i]);
line.lineTo((float) pt.getX(), (float) pt.getY());
ind.add(line);
}
}
return ind;
// return getIndicatorCircle(currentIndicatorLoc);
}
private static final double IND_CIRCLE_RADIUS = 10.0;
protected Shape getIndicatorCircle(Point2D p) {
return new Ellipse2D.Double(p.getX() - (IND_CIRCLE_RADIUS / 2), p.getY()
- (IND_CIRCLE_RADIUS / 2), IND_CIRCLE_RADIUS, IND_CIRCLE_RADIUS);
}
}