package safeluck.drive.evaluation.customview;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.support.annotation.Nullable;
import android.text.Layout;
import android.text.StaticLayout;
import android.text.TextPaint;
import android.util.AttributeSet;
import android.view.View;

import safeluck.drive.evaluation.util.Utils;

/**
 * MyApplication2
 * Created by lzw on 2019/3/18. 11:18:47
 * 邮箱：632393724@qq.com
 * All Rights Saved! Chongqing AnYun Tech co. LTD
 */
public class ArrowView extends View {

    private Path path = new Path();
    private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    private float PADDING = Utils.px2dp(40);
    private double a = Math.toRadians(55.0);
    private int color = Color.parseColor("#99C3D1");
    private String text = "直角转弯";
    private Path textPath = new Path();

    public ArrowView(Context context) {
        super(context);
    }

    public ArrowView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public ArrowView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        path.moveTo(getWidth()/2-PADDING,getHeight()/2-PADDING);
        path.rLineTo(PADDING,0);
        path.rLineTo(PADDING*(float)Math.cos(a),PADDING*(float)Math.sin(a));
        path.rLineTo(-PADDING*(float)Math.cos(a),PADDING*(float)Math.sin(a));
        path.rLineTo(-(PADDING),0);
        path.rLineTo(PADDING*(float)Math.cos(a),-PADDING*(float)Math.sin(a));
        path.rLineTo(-PADDING*(float)Math.cos(a),-PADDING*(float)Math.sin(a));
        path.close();
        paint.setColor(color);
        canvas.drawPath(path,paint);
        paint.setColor(Color.parseColor("#1412f6"));
        char[] index =  getKeyChar(text);
        Paint.FontMetrics fm = paint.getFontMetrics();
        float childHeight = PADDING/text.length();
        for (int i = 0; i < text.length(); i++) {
            canvas.drawText(String.valueOf(index[i]),getWidth()/2-PADDING/3, (float) (((i + 0.5) * childHeight) - (fm.ascent + fm.descent) / 2)+PADDING/3, paint);
        }
    }

    protected char[] getKeyChar(String str) {
        char[] keys = new char[str.length()];
        for (int i = 0; i < keys.length; i++) {
            keys[i] = str.charAt(i);
        }
        return keys;
    }
}