119 lines
3.9 KiB
Kotlin
119 lines
3.9 KiB
Kotlin
package jp.juggler.subwaytooter.util
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import android.graphics.RectF
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import jp.juggler.subwaytooter.api.entity.TootInstance
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import jp.juggler.subwaytooter.pref.PrefI
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import jp.juggler.subwaytooter.table.SavedAccount
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import jp.juggler.subwaytooter.table.daoImageAspect
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import jp.juggler.util.log.LogCategory
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import kotlin.math.min
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enum class EmojiSizeMode {
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Square,
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Wide,
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}
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fun SavedAccount?.emojiSizeMode(): EmojiSizeMode =
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when (PrefI.ipEmojiWideMode.value) {
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PrefI.EMOJI_WIDE_ENABLE -> EmojiSizeMode.Wide
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PrefI.EMOJI_WIDE_DISABLE -> EmojiSizeMode.Square
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else /* PrefI.EMOJI_WIDE_AUTO */ -> {
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val ti = this?.let { TootInstance.getCached(it) }
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when {
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ti == null -> EmojiSizeMode.Square
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ti.isMisskey || !ti.fedibirdCapabilities.isNullOrEmpty() -> EmojiSizeMode.Wide
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else -> EmojiSizeMode.Square
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}
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}
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}
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/**
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* カスタム絵文字のSpanやビューの描画領域やサイズを計算する
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*/
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class EmojiImageRect(
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private val sizeMode: EmojiSizeMode,
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val scale: Float = 1f,
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val scaleRatio: Float = 1f,
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val descentRatio: Float = 0f,
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val maxEmojiWidth: Float,
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// val layout: (Int, Int) -> Unit,
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) {
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companion object {
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private val log = LogCategory("EmojiImageRect")
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val imageAspectCache = HashMap<String, Float>()
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}
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val rectDst = RectF()
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var emojiWidth = 0f
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var emojiHeight = 0f
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var transY = 0f
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/**
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* lastAspect に基づいて rectDst と transY を更新する
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*/
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fun updateRect(
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url: String,
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aspectArg: Float? = null,
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textSize: Float,
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baseline: Float,
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) {
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// テキストサイズをスケーリングした基本高さ
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val h = textSize * scaleRatio * scale
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// ベースラインから上下方向にずらすオフセット
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val cDescent = emojiHeight * descentRatio
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this.transY = baseline - emojiHeight + cDescent
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updateRect(url, aspectArg, h)
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}
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fun updateRect(
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url: String,
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aspectArg: Float? = null,
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h: Float,
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) {
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this.emojiHeight = h
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val aspect = when (aspectArg) {
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null -> {
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imageAspectCache[url]
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?: daoImageAspect.load(url)?.also { imageAspectCache[url] = it }
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?: 1f
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}
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else -> {
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if (url.isNotEmpty()) imageAspectCache[url] = aspectArg
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aspectArg
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}
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}.takeIf { it > 0f } ?: 1f
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when {
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// 横長画像で、それを許可するモード
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aspect > 1.36f && sizeMode == EmojiSizeMode.Wide -> {
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// 絵文字のアスペクト比から描画範囲の幅と高さを決める
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val dstWidth = min(maxEmojiWidth, aspect * emojiHeight)
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val dstHeight = dstWidth / aspect
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val dstX = 0f
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val dstY = (emojiHeight - dstHeight) / 2f
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rectDst.set(dstX, dstY, dstX + dstWidth, dstY + dstHeight)
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emojiWidth = dstWidth
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}
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else -> {
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// 絵文字のアスペクト比から描画範囲の幅と高さを決める
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val dstWidth: Float
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val dstHeight: Float
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if (aspect >= 1f) {
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dstWidth = emojiHeight
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dstHeight = emojiHeight / aspect
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} else {
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dstHeight = emojiHeight
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dstWidth = emojiHeight * aspect
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}
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val dstX = (emojiHeight - dstWidth) / 2f
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val dstY = (emojiHeight - dstHeight) / 2f
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rectDst.set(dstX, dstY, dstX + dstWidth, dstY + dstHeight)
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emojiWidth = emojiHeight
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}
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}
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}
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}
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