From f0b99fd68cb3b6b484d50c1f9ebc0e77997fd2dd Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Wed, 9 Jan 2013 20:32:40 +1300
Subject: Completely rewritten project

---
 src/org/traccar/web/client/view/MapView.java | 149 +++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 src/org/traccar/web/client/view/MapView.java

(limited to 'src/org/traccar/web/client/view/MapView.java')

diff --git a/src/org/traccar/web/client/view/MapView.java b/src/org/traccar/web/client/view/MapView.java
new file mode 100644
index 0000000..af38c44
--- /dev/null
+++ b/src/org/traccar/web/client/view/MapView.java
@@ -0,0 +1,149 @@
+package org.traccar.web.client.view;
+
+import java.util.AbstractMap;
+import java.util.HashMap;
+import java.util.List;
+
+import org.gwtopenmaps.openlayers.client.Icon;
+import org.gwtopenmaps.openlayers.client.LonLat;
+import org.gwtopenmaps.openlayers.client.Map;
+import org.gwtopenmaps.openlayers.client.MapOptions;
+import org.gwtopenmaps.openlayers.client.MapWidget;
+import org.gwtopenmaps.openlayers.client.Marker;
+import org.gwtopenmaps.openlayers.client.Pixel;
+import org.gwtopenmaps.openlayers.client.Projection;
+import org.gwtopenmaps.openlayers.client.Size;
+import org.gwtopenmaps.openlayers.client.control.ScaleLine;
+import org.gwtopenmaps.openlayers.client.layer.Markers;
+import org.gwtopenmaps.openlayers.client.layer.OSM;
+import org.traccar.web.shared.model.Device;
+import org.traccar.web.shared.model.Position;
+
+import com.google.gwt.core.client.Scheduler;
+import com.google.gwt.event.logical.shared.ResizeEvent;
+import com.google.gwt.event.logical.shared.ResizeHandler;
+import com.google.gwt.user.client.Command;
+import com.sencha.gxt.widget.core.client.ContentPanel;
+
+class MarkerIconFactory {
+
+    private static final Size iconSize = new Size(21, 25);
+    private static final Pixel iconOffset = new Pixel(-10.5f, -25.0f);
+
+    private static final String iconUrl = "http://www.openlayers.org/api/img/";
+    private static final String iconRed = iconUrl + "marker.png";
+    private static final String iconBlue = iconUrl + "marker-blue.png";
+    private static final String iconGreen = iconUrl + "marker-green.png";
+    private static final String iconGold = iconUrl + "marker-gold.png";
+
+    public static Icon getLocationIcon() {
+        return new Icon(iconRed, iconSize, iconOffset);
+    }
+
+    public static Icon getSelectedLocationIcon() {
+        return new Icon(iconGreen, iconSize, iconOffset);
+    }
+
+    public static Icon getArchiveIcon() {
+        return new Icon(iconBlue, iconSize, iconOffset);
+    }
+
+    public static Icon getSelectedArchiveIcon() {
+        return new Icon(iconGold, iconSize, iconOffset);
+    }
+
+}
+
+public class MapView {
+
+    private ContentPanel contentPanel;
+
+    public ContentPanel getView() {
+        return contentPanel;
+    }
+
+    private MapWidget mapWidget;
+    private Map map;
+    private Markers markerLayer;
+
+    private LonLat createPoint(double longitude, double latitude) {
+        LonLat point = new LonLat(longitude, latitude);
+        point.transform(new Projection("EPSG:4326").getProjectionCode(), map.getProjection());
+        return point;
+    }
+
+    public MapView() {
+        contentPanel = new ContentPanel();
+        contentPanel.setHeadingText("Map");
+
+        MapOptions defaultMapOptions = new MapOptions();
+        defaultMapOptions.setNumZoomLevels(16);
+
+        mapWidget = new MapWidget("100%", "100%", defaultMapOptions);
+        map = mapWidget.getMap();
+
+        OSM mapLayer = OSM.Mapnik("Mapnik");
+        mapLayer.setIsBaseLayer(true);
+
+        markerLayer = new Markers("Markers");
+
+        map.addLayer(mapLayer);
+        map.addLayer(markerLayer);
+        map.addControl(new ScaleLine());
+        map.setCenter(createPoint(30, 60), 1);
+
+        contentPanel.add(mapWidget);
+
+        // Update map size
+        contentPanel.addResizeHandler(new ResizeHandler() {
+            @Override
+            public void onResize(ResizeEvent event) {
+                Scheduler.get().scheduleDeferred(new Command() {
+                    @Override
+                    public void execute() {
+                        map.updateSize();
+                    }
+                });
+            }
+        });
+    }
+
+    private AbstractMap<Long, Marker> markerMap = new HashMap<Long, Marker>();
+    private Device selectedDevice;
+
+    public void showPositions(List<Position> positions) {
+        markerMap.clear();
+        markerLayer.clearMarkers();
+        for (Position position : positions) {
+            Marker marker = new Marker(
+                    createPoint(position.getLongitude(), position.getLatitude()), MarkerIconFactory.getLocationIcon());
+            markerMap.put(position.getDevice().getId(), marker);
+            markerLayer.addMarker(marker);
+        }
+        if (selectedDevice != null) {
+            select(selectedDevice, false);
+        }
+    }
+
+    private void changeMarkerIcon(Marker marker, Icon icon) {
+        Marker newMarker = new Marker(marker.getLonLat(), icon);
+        markerLayer.removeMarker(marker);
+        markerLayer.addMarker(newMarker);
+    }
+
+    public void select(Device device, boolean center) {
+        if (selectedDevice != null) {
+            changeMarkerIcon(markerMap.get(selectedDevice.getId()), MarkerIconFactory.getLocationIcon());
+            selectedDevice = null;
+        }
+        if (device != null && markerMap.containsKey(device.getId())) {
+            Marker marker = markerMap.get(device.getId());
+            if (center) {
+                map.panTo(marker.getLonLat());
+            }
+            changeMarkerIcon(marker, MarkerIconFactory.getSelectedLocationIcon());
+            selectedDevice = device;
+        }
+    }
+
+}
-- 
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