package in.srain.cube.views.ptr.header; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.PointF; import android.view.animation.Animation; import android.view.animation.Transformation; import java.util.Random; /** * Created by srain on 11/6/14. */ public class StoreHouseBarItem extends Animation { public PointF midPoint; public float translationX; public int index; private final Paint mPaint = new Paint(); private float mFromAlpha = 1.0f; private float mToAlpha = 0.4f; private PointF mCStartPoint; private PointF mCEndPoint; public StoreHouseBarItem(int index, PointF start, PointF end, int color, int lineWidth) { this.index = index; midPoint = new PointF((start.x + end.x) / 2, (start.y + end.y) / 2); mCStartPoint = new PointF(start.x - midPoint.x, start.y - midPoint.y); mCEndPoint = new PointF(end.x - midPoint.x, end.y - midPoint.y); setColor(color); setLineWidth(lineWidth); mPaint.setAntiAlias(true); mPaint.setStyle(Paint.Style.STROKE); } public void setLineWidth(int width) { mPaint.setStrokeWidth(width); } public void setColor(int color) { mPaint.setColor(color); } public void resetPosition(int horizontalRandomness) { Random random = new Random(); int randomNumber = -random.nextInt(horizontalRandomness) + horizontalRandomness; translationX = randomNumber; } @Override protected void applyTransformation(float interpolatedTime, Transformation t) { float alpha = mFromAlpha; alpha = alpha + ((mToAlpha - alpha) * interpolatedTime); setAlpha(alpha); } public void start(float fromAlpha, float toAlpha) { mFromAlpha = fromAlpha; mToAlpha = toAlpha; super.start(); } public void setAlpha(float alpha) { mPaint.setAlpha((int) (alpha * 255)); } public void draw(Canvas canvas) { canvas.drawLine(mCStartPoint.x, mCStartPoint.y, mCEndPoint.x, mCEndPoint.y, mPaint); } }