package com.future.dispatch.utils.glide;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;

import androidx.annotation.NonNull;

import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;
import com.bumptech.glide.load.resource.bitmap.TransformationUtils;

import java.security.MessageDigest;


/**
 * Created by CaostGrace on 2018/6/27 9:35
 *
 * @project_name: baoxin
 * @package_name: com.cdwh.chatApp.utils
 * @class_name: GlideRoundTransform
 * @github: https://github.com/CaostGrace
 * @简书: http://www.jianshu.com/u/b252a19d88f3
 * @content: 圆角图片
 */
public class GlideRoundTransform extends BitmapTransformation {

    private static float radius = 0f;

    /**
     * 构造函数 默认圆角半径 4dp
     *
     * @param context Context
     */
    public GlideRoundTransform(Context context) {
        this(context, 4);
    }

    /**
     * 构造函数
     *
     * @param context Context
     * @param dp      圆角半径
     */
    public GlideRoundTransform(Context context, int dp) {
        super();
        radius = Resources.getSystem().getDisplayMetrics().density * dp;
    }

    @Override
    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
        Bitmap bitmap = TransformationUtils.centerCrop(pool, toTransform, outWidth, outHeight);
        return roundCrop(pool, bitmap);
    }

    private static Bitmap roundCrop(BitmapPool pool, Bitmap source) {
        if (source == null) return null;

        Bitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        if (result == null) {
            result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        }

        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());
        canvas.drawRoundRect(rectF, radius, radius, paint);
        return result;
    }


    @Override
    public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {

    }
}