Android Open Source - Android_OSM_offlinemap Circle Drawable

From Project

Back to project page Android_OSM_offlinemap.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.vellut.offlinemap;
/*from  w w  w  . j  a  va2s. c  o  m*/
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;

public class CircleDrawable extends Drawable {

  private int radius;
  private Paint paint, paintBorder;
  
  public CircleDrawable(int color, int radius) {
    this.radius = radius;
    paint = new Paint();
    paint.setStyle(Style.FILL);
    paint.setColor(color);
    paint.setAntiAlias(false);

    paintBorder = new Paint();
    paintBorder.setStyle(Style.STROKE);
    paintBorder.setColor(Color.WHITE);
    paintBorder.setStrokeWidth(2);
    paintBorder.setAntiAlias(true);

    setBounds(-radius, -radius, radius, radius);
  }
  
  @Override
  public void draw(Canvas canvas) {
    float cx = (getBounds().right + getBounds().left) / 2;
    float cy = (getBounds().top + getBounds().bottom) / 2;
    canvas.drawCircle(cx, cy, radius, paint);
    canvas.drawCircle(cx, cy, radius, paintBorder);
  }

  @Override
  public int getOpacity() {
    return PixelFormat.OPAQUE;
  }
  
  @Override
  public int getIntrinsicWidth() {
    return radius * 2;
  }
  
  @Override
  public int getIntrinsicHeight() {
    return radius * 2;
  }
  
  @Override
  public void setAlpha(int alpha) {
    paint.setAlpha(alpha);
  }

  @Override
  public void setColorFilter(ColorFilter cf) {
    paint.setColorFilter(cf);
  }
}

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