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package eu.kanade.tachiyomi.widget
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import android.graphics.Canvas
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import android.graphics.Paint
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import android.text.style.ReplacementSpan
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import androidx.annotation.ColorInt
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import androidx.annotation.Dimension
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/**
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* Source: https://github.com/santaevpavel
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*
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* A class that draws the outlines of a text when given a stroke color and stroke width.
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*/
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class OutlineSpan(
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@ColorInt private val strokeColor: Int,
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@Dimension private val strokeWidth: Float
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) : ReplacementSpan() {
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override fun getSize(
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paint: Paint,
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text: CharSequence,
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start: Int,
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end: Int,
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fm: Paint.FontMetricsInt?
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): Int {
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return paint.measureText(text.toString().substring(start until end)).toInt()
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}
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override fun draw(
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canvas: Canvas,
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text: CharSequence,
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start: Int,
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end: Int,
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x: Float,
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top: Int,
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y: Int,
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bottom: Int,
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paint: Paint
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) {
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val originTextColor = paint.color
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paint.apply {
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color = strokeColor
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style = Paint.Style.STROKE
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this.strokeWidth = this@OutlineSpan.strokeWidth
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}
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canvas.drawText(text, start, end, x, y.toFloat(), paint)
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paint.apply {
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color = originTextColor
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style = Paint.Style.FILL
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}
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canvas.drawText(text, start, end, x, y.toFloat(), paint)
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}
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}
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