/**
*
* Copyright
* 2009-2015 Jayway Products AB
* 2016-2017 Föreningen Sambruk
*
* Licensed under AGPL, Version 3.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.gnu.org/licenses/agpl.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package se.streamsource.streamflow.client.ui.workspace.cases.general.forms.geo;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.geom.Point2D;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.jxmapviewer.JXMapViewer;
import org.jxmapviewer.painter.Painter;
import org.jxmapviewer.viewer.GeoPosition;
public class AreaPainter implements Painter<JXMapViewer>
{
private Color color = new Color(1f, 0f, 0f, 0.5f);
private Color outlineColor = Color.BLACK;
private List<GeoPosition> points;
public AreaPainter()
{
points = new ArrayList<GeoPosition>();
}
void setPoints(Collection<GeoPosition> points) {
this.points= new ArrayList<GeoPosition>(points);
}
@Override
public void paint(Graphics2D g, JXMapViewer map, int w, int h)
{
g = (Graphics2D) g.create();
// convert from viewport to world bitmap
Rectangle rect = map.getViewportBounds();
g.translate(-rect.x, -rect.y);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
Polygon polygon = pointsToPolygon(map, points);
g.setPaint(color);
g.fill(polygon);
g.setPaint(outlineColor);
g.setStroke(new BasicStroke(2));
g.draw(polygon);
g.dispose();
}
private Polygon pointsToPolygon(JXMapViewer map, List<GeoPosition> points) {
Polygon result = new Polygon();
for (GeoPosition p: points) {
Point2D p2d = map.getTileFactory().geoToPixel(p, map.getZoom());
result.addPoint((int) p2d.getX(), (int) p2d.getY());
}
return result;
}
}