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@ -5,45 +5,67 @@ import android.graphics.Canvas
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import android.graphics.Color
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import android.graphics.ColorFilter
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import android.graphics.Paint
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import android.graphics.Path
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import android.graphics.PixelFormat
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import android.graphics.Rect
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import android.graphics.RectF
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import android.graphics.drawable.Drawable
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import androidx.annotation.StyleRes
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import androidx.core.content.withStyledAttributes
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import androidx.core.graphics.ColorUtils
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import androidx.core.graphics.withClip
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import com.google.android.material.color.MaterialColors
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import org.koitharu.kotatsu.R
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import kotlin.math.absoluteValue
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class FaviconFallbackDrawable(
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class FaviconDrawable(
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context: Context,
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@StyleRes styleResId: Int,
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name: String,
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) : Drawable() {
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private val paint = Paint(Paint.ANTI_ALIAS_FLAG)
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private var colorBackground = Color.WHITE
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private var colorStroke = Color.LTGRAY
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private val letter = name.take(1).uppercase()
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private val color = MaterialColors.harmonizeWithPrimary(context, colorOfString(name))
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private var cornerSize = 0f
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private var colorForeground = Color.DKGRAY
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private val textBounds = Rect()
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private val tempRect = Rect()
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private val boundsF = RectF()
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private val clipPath = Path()
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init {
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paint.style = Paint.Style.FILL
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context.withStyledAttributes(styleResId, R.styleable.FaviconFallbackDrawable) {
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colorBackground = getColor(R.styleable.FaviconFallbackDrawable_backgroundColor, colorBackground)
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colorStroke = getColor(R.styleable.FaviconFallbackDrawable_strokeColor, colorStroke)
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cornerSize = getDimension(R.styleable.FaviconFallbackDrawable_cornerSize, cornerSize)
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paint.strokeWidth = getDimension(R.styleable.FaviconFallbackDrawable_strokeWidth, 0f) * 2f
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}
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paint.textAlign = Paint.Align.CENTER
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paint.isFakeBoldText = true
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colorForeground = MaterialColors.harmonize(colorOfString(name), colorBackground)
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}
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override fun draw(canvas: Canvas) {
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val cx = bounds.exactCenterX()
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paint.color = color
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canvas.drawPaint(paint)
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paint.color = Color.WHITE
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val ty = bounds.height() / 2f + textBounds.height() / 2f - textBounds.bottom
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canvas.drawText(letter, cx, ty, paint)
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if (cornerSize > 0f) {
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canvas.withClip(clipPath) {
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doDraw(canvas)
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}
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} else {
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doDraw(canvas)
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}
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}
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override fun onBoundsChange(bounds: Rect) {
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super.onBoundsChange(bounds)
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boundsF.set(bounds)
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val innerWidth = bounds.width() - (paint.strokeWidth * 2f)
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paint.textSize = getTextSizeForWidth(innerWidth, letter) * 0.5f
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paint.getTextBounds(letter, 0, letter.length, textBounds)
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invalidateSelf()
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clipPath.reset()
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clipPath.addRoundRect(boundsF, cornerSize, cornerSize, Path.Direction.CW)
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clipPath.close()
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}
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override fun setAlpha(alpha: Int) {
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@ -58,6 +80,24 @@ class FaviconFallbackDrawable(
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@Deprecated("Deprecated in Java")
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override fun getOpacity() = PixelFormat.TRANSPARENT
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private fun doDraw(canvas: Canvas) {
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// background
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paint.color = colorBackground
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paint.style = Paint.Style.FILL
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canvas.drawPaint(paint)
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// letter
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paint.color = colorForeground
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val cx = (boundsF.left + boundsF.right) * 0.6f
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val ty = boundsF.bottom * 0.7f + textBounds.height() * 0.5f - textBounds.bottom
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canvas.drawText(letter, cx, ty, paint)
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if (paint.strokeWidth > 0f) {
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// stroke
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paint.color = colorStroke
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paint.style = Paint.Style.STROKE
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canvas.drawPath(clipPath, paint)
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}
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}
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private fun getTextSizeForWidth(width: Float, text: String): Float {
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val testTextSize = 48f
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paint.textSize = testTextSize
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