RadiusOverlay.java :  » Location » wakemewhere » com » google » android » apps » wakemewhere » ui » Android Open Source

package com.google.android.apps.wakemewhere.ui;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.Paint.Style;

import com.google.android.apps.wakemewhere.R;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.Projection;


public class RadiusOverlay extends Overlay {

  private static final int CIRCLERADIUS = 60;

  private GeoPoint geopoint;

  public RadiusOverlay(GeoPoint point) {
    geopoint = point;
  }

  @Override
  public void draw(Canvas canvas, MapView mapView, boolean shadow) {

    Projection projection = mapView.getProjection();
    Point point = new Point();
    projection.toPixels(geopoint, point);

    Paint circlePaint = new Paint();
    circlePaint.setStrokeWidth(1);
    circlePaint.setAntiAlias(true);

    // Draw the outer circle
    circlePaint.setARGB(255, 100, 156, 210);
    circlePaint.setStyle(Style.STROKE);
    canvas.drawCircle(point.x, point.y, CIRCLERADIUS + 1, circlePaint);

    // Fill the circle
    circlePaint.setARGB(100, 100, 156, 210);
    circlePaint.setStyle(Style.FILL_AND_STROKE);
    canvas.drawCircle(point.x, point.y, CIRCLERADIUS, circlePaint);
    
    Bitmap bmp = BitmapFactory.decodeResource(
                mapView.getResources(), R.drawable.red_pushpin);  
    
    Paint pushpinPaint = new Paint(Paint.ANTI_ALIAS_FLAG|Paint.FILTER_BITMAP_FLAG);
    canvas.drawBitmap(bmp, point.x-12, point.y-42, pushpinPaint);         
  }
  
}