Android Open Source - Sketcher Circles Style

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Back to project page Sketcher.

License

The source code is released under:

Apache License

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Java Source Code

package org.sketcher.style;
// w  w  w . ja  va  2 s .  c o  m
import java.util.HashMap;

import org.sketcher.Style;

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;

class CirclesStyle implements Style {
  private float prevX;
  private float prevY;

  private Paint paint = new Paint();

  {
    paint.setColor(Color.BLACK);
    paint.setAlpha(50);
    paint.setStyle(Paint.Style.STROKE);
    paint.setAntiAlias(true);
    paint.setStrokeWidth(1);
  }

  @Override
  public void stroke(Canvas c, float x, float y) {
    float dx = x - prevX;
    float dy = y - prevY;

    int dxy = (int) (Math.sqrt(dx * dx + dy * dy) * 2);

    int gridx = (int) (Math.floor(x / 50) * 50 + 25);
    int gridy = (int) (Math.floor(y / 50) * 50 + 25);

    int rand = (int) (Math.floor(Math.random() * 9) + 1);
    int radius = dxy / rand;

    for (int i = 0; i < rand; i++) {
      c.drawCircle(gridx, gridy, (rand - i) * radius, paint);
    }

    prevX = x;
    prevY = y;
  }

  @Override
  public void strokeStart(float x, float y) {
    prevX = x;
    prevY = y;
  }

  @Override
  public void draw(Canvas c) {
  }

  @Override
  public void setColor(int color) {
    paint.setColor(color);
    paint.setAlpha(50);
  }

  @Override
  public void saveState(HashMap<Integer, Object> state) {
  }

  @Override
  public void restoreState(HashMap<Integer, Object> state) {
  }
}

Java Source Code List