apply the rounded corners to images loaded by Picasso too

app/src/main/kotlin/com/simplemobiletools/gallery/pro/extensions/Context.kt

@@ -476,7 +476,7 @@ fun Context.loadPng(path: String, target: MySquareImageView, cropThumbnails: Boo
         .apply(options)
         .listener(object : RequestListener<Bitmap> {
             override fun onLoadFailed(e: GlideException?, model: Any?, targetBitmap: Target<Bitmap>?, isFirstResource: Boolean): Boolean {
-                tryLoadingWithPicasso(path, target, signature)
+                tryLoadingWithPicasso(path, target, cropThumbnails, roundCorners, signature)
                 return false
             }
 
@@ -495,17 +495,24 @@ fun Context.loadPng(path: String, target: MySquareImageView, cropThumbnails: Boo
 }
 
 // intended mostly for Android 11 issues, that fail loading PNG files bigger than 10 MB
-fun tryLoadingWithPicasso(path: String, view: MySquareImageView, signature: ObjectKey) {
+fun Context.tryLoadingWithPicasso(path: String, view: MySquareImageView, cropThumbnails: Boolean, roundCorners: Int, signature: ObjectKey) {
     var pathToLoad = "file://$path"
     pathToLoad = pathToLoad.replace("%", "%25").replace("#", "%23")
 
     try {
-        Picasso.get()
+        var builder = Picasso.get()
             .load(pathToLoad)
             .centerCrop()
             .fit()
             .stableKey(signature.toString())
-            .into(view)
+
+        if (roundCorners != ROUNDED_CORNERS_NONE) {
+            val cornerSize = if (roundCorners == ROUNDED_CORNERS_SMALL) R.dimen.rounded_corner_radius_small else R.dimen.rounded_corner_radius_big
+            val cornerRadius = resources.getDimension(cornerSize).toInt()
+            builder = builder.transform(RoundedCornersTransformation(cornerRadius.toFloat()))
+        }
+
+        builder.into(view)
     } catch (e: Exception) {
     }
 }

app/src/main/kotlin/com/simplemobiletools/gallery/pro/helpers/PicassoRoundedCornersTransformation.kt

@@ -0,0 +1,32 @@
+package com.simplemobiletools.gallery.pro.helpers
+
+import android.graphics.*
+import com.squareup.picasso.Transformation
+
+// taken from https://stackoverflow.com/a/35241525/1967672
+class RoundedCornersTransformation(private val radius: Float) : Transformation {
+
+    override fun transform(source: Bitmap): Bitmap {
+        val size = Math.min(source.width, source.height)
+        val x = (source.width - size) / 2
+        val y = (source.height - size) / 2
+        val squaredBitmap = Bitmap.createBitmap(source, x, y, size, size)
+        if (squaredBitmap != source) {
+            source.recycle()
+        }
+
+        val bitmap = Bitmap.createBitmap(size, size, source.config)
+        val canvas = Canvas(bitmap)
+        val paint = Paint()
+        val shader = BitmapShader(squaredBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)
+        paint.shader = shader
+        paint.isAntiAlias = true
+
+        val rect = RectF(0f, 0f, source.width.toFloat(), source.height.toFloat())
+        canvas.drawRoundRect(rect, radius, radius, paint)
+        squaredBitmap.recycle()
+        return bitmap
+    }
+
+    override fun key() = "rounded_corners"
+}