CircleTransform for Picasso
/*
* Copyright 2016 Daniel Gomez Rico
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
class CircleTransform : Transformation {
override fun key(): String? {
return "circle";
}
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 (!Objects.equals(squaredBitmap, source)) {
source.recycle();
}
val config = source.config ?: Bitmap.Config.ARGB_8888
val bitmap = Bitmap.createBitmap(size, size, config);
val canvas = Canvas(bitmap);
val paint = Paint();
val shader = BitmapShader(squaredBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
paint.setShader(shader);
paint.setAntiAlias(true);
val r = size / 2f;
canvas.drawCircle(r, r, r, paint);
squaredBitmap.recycle();
return bitmap;
}
}
/*
* Copyright 2014 Julian Shen
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.picassodemo;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;
import com.squareup.picasso.Transformation;
/**
* Created by julian on 13/6/21.
*/
public class CircleTransform implements Transformation {
@Override
public Bitmap transform(Bitmap source) {
int size = Math.min(source.getWidth(), source.getHeight());
int x = (source.getWidth() - size) / 2;
int y = (source.getHeight() - size) / 2;
Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
if (!Objects.equals(squaredBitmap, source)) {
source.recycle();
}
Bitmap.Config config =
source.getConfig() == null ? Bitmap.Config.ARGB_8888 : source.getConfig();
Bitmap bitmap = Bitmap.createBitmap(size, size, config);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
BitmapShader shader =
new BitmapShader(squaredBitmap, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
paint.setShader(shader);
paint.setAntiAlias(true);
float r = size / 2f;
canvas.drawCircle(r, r, r, paint);
squaredBitmap.recycle();
return bitmap;
}
@Override
public String key() {
return "circle";
}
}