Change code style.

2012-09-03 14:15:22 +08:00
commit 3b92eb3a23
708 changed files with 65506 additions and 0 deletions
@@ -0,0 +1,139 @@
+/*
+ * 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.apps.mytracks.ColoredPath;
+import com.google.android.apps.mytracks.MapOverlay.CachedLocation;
+import com.google.android.maps.GeoPoint;
+import com.google.android.maps.Projection;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Point;
+import android.graphics.Rect;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A path painter that varies the path colors based on fixed speeds or average
+ * speed margin depending of the TrackPathDescriptor passed to its constructor.
+ * 
+ * @author Vangelis S.
+ */
+public class DynamicSpeedTrackPathPainter implements TrackPathPainter {
+  private final TrackPathDescriptor trackPathDescriptor;
+  private final Paint slowPaint;
+  private final Paint mediumPaint;
+  private final Paint fastPaint;
+  private final List<ColoredPath> coloredPaths;
+
+  public DynamicSpeedTrackPathPainter(Context context, TrackPathDescriptor trackPathDescriptor) {
+    this.trackPathDescriptor = trackPathDescriptor;
+    slowPaint = TrackPathUtils.getPaint(context, R.color.slow_path);
+    mediumPaint = TrackPathUtils.getPaint(context, R.color.normal_path);
+    fastPaint = TrackPathUtils.getPaint(context, R.color.fast_path);
+    coloredPaths = new ArrayList<ColoredPath>();
+  }
+
+  @Override
+  public boolean hasPath() {
+    return !coloredPaths.isEmpty();
+  }
+
+  @Override
+  public boolean updateState() {
+    return trackPathDescriptor.updateState();
+  }
+
+  @Override
+  public void updatePath(
+      Projection projection, Rect viewRect, int startIndex, List<CachedLocation> points) {
+    boolean hasLastPoint = startIndex != 0 && points.get(startIndex -1).isValid();
+    Point point = new Point();
+    if (hasLastPoint) {
+      GeoPoint geoPoint = points.get(startIndex -1).getGeoPoint();
+      projection.toPixels(geoPoint, point);
+    }
+    boolean newSegment = !hasLastPoint;
+    // Assume if last point exists, it is visible
+    boolean lastPointVisible = hasLastPoint;
+    int slowSpeed = trackPathDescriptor.getSlowSpeed();
+    int normalSpeed = trackPathDescriptor.getNormalSpeed();
+
+    for (int i = startIndex; i < points.size(); ++i) {
+      CachedLocation cachedLocation = points.get(i);
+
+      // If not valid, start a new segment
+      if (!cachedLocation.isValid()) {
+        newSegment = true;
+        continue;
+      }
+
+      GeoPoint geoPoint = cachedLocation.getGeoPoint();
+      // Check if this breaks the existing segment.
+      boolean pointVisible = viewRect.contains(geoPoint.getLongitudeE6(), geoPoint.getLatitudeE6());
+      if (!pointVisible && !lastPointVisible) {
+        // This point and the last point are both outside visible area.
+        newSegment = true;
+      }
+      lastPointVisible = pointVisible;
+
+      // Either update point or draw a line from the last point
+      if (newSegment) {
+        projection.toPixels(geoPoint, point);
+        newSegment = false;
+      } else {
+        ColoredPath coloredPath;
+        if (cachedLocation.getSpeed() <= slowSpeed) {
+          coloredPath = new ColoredPath(slowPaint);
+        } else if (cachedLocation.getSpeed() <= normalSpeed) {
+          coloredPath = new ColoredPath(mediumPaint);
+        } else {
+          coloredPath = new ColoredPath(fastPaint);
+        }
+        coloredPath.getPath().moveTo(point.x, point.y);
+        projection.toPixels(geoPoint, point);
+        coloredPath.getPath().lineTo(point.x, point.y);
+        coloredPaths.add(coloredPath);
+      }
+    }
+  }
+
+  @Override
+  public void clearPath() {
+    coloredPaths.clear();
+  }
+
+  @Override
+  public void drawPath(Canvas canvas) {
+    for (int i = 0; i < coloredPaths.size(); i++) {
+      ColoredPath coloredPath = coloredPaths.get(i);
+      canvas.drawPath(coloredPath.getPath(), coloredPath.getPathPaint());
+    }
+  }
+
+  /**
+   * Gets the colored paths.
+   */
+  @VisibleForTesting
+  List<ColoredPath> getColoredPaths() {
+    return coloredPaths;
+  }
+}