skrueger/geotools/CrsLabel.java

package skrueger.geotools;

import javax.swing.JLabel;

import schmitzm.geotools.gui.SelectableXMapPane;
import schmitzm.geotools.gui.XMapPaneEvent;
import schmitzm.geotools.map.event.JMapPaneListener;

public class CrsLabel extends JLabel {

        private JMapPaneListener listenForCrsChange = new JMapPaneListener() {

                @Override
                public void performMapPaneEvent(XMapPaneEvent e) {
                        updateCrs();
                }
        };

        private final SelectableXMapPane mapPane;

        CrsLabel(SelectableXMapPane mapPane) {
                super();
                this.mapPane = mapPane;

                mapPane.addMapPaneListener(listenForCrsChange);

                updateCrs();
        }

        public void updateCrs() {
                try {
                        setText("CRS:"
                                        + mapPane.getMapContext().getCoordinateReferenceSystem()
                                                        .getName().toString());
                } catch (Exception e) {
                        setText("CRS:" + "NONE");
                }
        }

        @Override
        protected void finalize() throws Throwable {
                super.finalize();
                if (mapPane != null)
                        mapPane.removeMapPaneListener(listenForCrsChange);
        }

}
1	package skrueger.geotools;
2
3	import javax.swing.JLabel;
4
5	import schmitzm.geotools.gui.SelectableXMapPane;
6	import schmitzm.geotools.gui.XMapPaneEvent;
7	import schmitzm.geotools.map.event.JMapPaneListener;
8
9	public class CrsLabel extends JLabel {
10
11	private JMapPaneListener listenForCrsChange = new JMapPaneListener() {
12
13	@Override
14	public void performMapPaneEvent(XMapPaneEvent e) {
15	updateCrs();
16	}
17	};
18
19	private final SelectableXMapPane mapPane;
20
21	CrsLabel(SelectableXMapPane mapPane) {
22	super();
23	this.mapPane = mapPane;
24
25	mapPane.addMapPaneListener(listenForCrsChange);
26
27	updateCrs();
28	}
29
30	public void updateCrs() {
31	try {
32	setText("CRS:"
33	+ mapPane.getMapContext().getCoordinateReferenceSystem()
34	.getName().toString());
35	} catch (Exception e) {
36	setText("CRS:" + "NONE");
37	}
38	}
39
40	@Override
41	protected void finalize() throws Throwable {
42	super.finalize();
43	if (mapPane != null)
44	mapPane.removeMapPaneListener(listenForCrsChange);
45	}
46
47	}
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