package com.bokecc.livemodule.utils;

import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;

import androidx.annotation.NonNull;

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

import java.security.MessageDigest;

public class GlideCircleTransform extends BitmapTransformation {

    @Override
    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
        return circleCrop(pool, toTransform);
    }

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

        int size = Math.min(source.getWidth(), source.getHeight());
        int x = (source.getWidth() - size) / 2;
        int y = (source.getHeight() - size) / 2;

        Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
        Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);
        if (result == null) {
            result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
        }

        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        // 要处理的bitmap对象
        // 在X轴处理的效果，Shader.TileMode里有三种模式：CLAMP、MIRROR和REPETA
        // 在Y轴处理的效果，Shader.TileMode里有三种模式：CLAMP、MIRROR和REPETA
        paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        double r = (double) size / 2;
        canvas.drawCircle((float) r, (float)r, (float)r, paint);
        return result;
    }

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

    }
}