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2013-01-29 14:49:11 -08:00
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+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * 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 com.google.android.apps.mytracks.maps;
+
+import com.google.android.gms.maps.GoogleMap;
+import com.google.android.gms.maps.model.LatLng;
+import com.google.android.gms.maps.model.Polyline;
+import com.google.android.gms.maps.model.PolylineOptions;
+
+import java.util.ArrayList;
+
+/**
+ * Various utility functions for track path painting.
+ * 
+ * @author Vangelis S.
+ */
+public class TrackPathUtils {
+
+  private TrackPathUtils() {}
+
+  /**
+   * Add a path.
+   * 
+   * @param googleMap the google map
+   * @param paths the existing paths
+   * @param points the path points
+   * @param color the path color
+   * @param append true to append to the last path
+   */
+  public static void addPath(GoogleMap googleMap, ArrayList<Polyline> paths,
+      ArrayList<LatLng> points, int color, boolean append) {
+    if (points.size() == 0) {
+      return;
+    }
+    if (append && paths.size() != 0) {
+      Polyline lastPolyline = paths.get(paths.size() - 1);
+      ArrayList<LatLng> pathPoints = new ArrayList<LatLng>();
+      pathPoints.addAll(lastPolyline.getPoints());
+      pathPoints.addAll(points);
+      lastPolyline.setPoints(pathPoints);
+    } else {
+      PolylineOptions polylineOptions = new PolylineOptions().addAll(points).width(5).color(color);
+      Polyline polyline = googleMap.addPolyline(polylineOptions);
+      paths.add(polyline);
+    }
+    points.clear();
+  }
+}