Twidere-App-Android-Twitter.../twidere/src/main/kotlin/org/mariotaku/twidere/util/glide/RoundedRectTransformation.kt

73 lines
2.6 KiB
Kotlin

/*
* Twidere - Twitter client for Android
*
* Copyright (C) 2012-2017 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mariotaku.twidere.util.glide
import android.content.Context
import android.graphics.*
import com.bumptech.glide.Glide
import com.bumptech.glide.load.Transformation
import com.bumptech.glide.load.engine.Resource
import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool
import com.bumptech.glide.load.resource.bitmap.BitmapResource
class RoundedRectTransformation(
private val bitmapPool: BitmapPool,
private val radius: Float,
private val radiusPercent: Float
) : Transformation<Bitmap> {
val rectF = RectF()
constructor(context: Context, radius: Float, radiusPercent: Float) :
this(Glide.get(context).bitmapPool, radius, radiusPercent)
override fun transform(resource: Resource<Bitmap>, outWidth: Int, outHeight: Int): Resource<Bitmap> {
val source = resource.get()
val width = source.width
val height = source.height
val bitmap = bitmapPool.get(width, height, Bitmap.Config.ARGB_8888)
?: Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
val canvas = Canvas(bitmap)
val paint = Paint()
paint.isAntiAlias = true
paint.shader = BitmapShader(source, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)
rectF.right = width.toFloat()
rectF.bottom = height.toFloat()
val calculatedRadius = if (radiusPercent != 0f) {
width * radiusPercent
} else {
radius
}
drawRoundRect(canvas, calculatedRadius, paint)
return BitmapResource.obtain(bitmap, bitmapPool)
}
private fun drawRoundRect(canvas: Canvas, radius: Float, paint: Paint) {
canvas.drawRoundRect(rectF, radius, radius, paint)
}
override fun getId(): String {
return "RoundedRectTransformation(radius=$radius, radiusPercent=$radius)"
}
}