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Also update rrtop sample with several color palettes
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71 changes: 69 additions & 2 deletions
71
mosaic-runtime/src/commonMain/kotlin/com/jakewharton/mosaic/ansi.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,71 @@ | ||
| package com.jakewharton.mosaic | ||
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| internal const val clearLine = "\u001B[K" | ||
| internal const val cursorUp = "\u001B[F" | ||
| import com.github.ajalt.mordant.rendering.AnsiLevel as MordantAnsiLevel | ||
| import com.jakewharton.mosaic.ui.AnsiLevel | ||
| import com.jakewharton.mosaic.ui.Color | ||
| import kotlin.math.roundToInt | ||
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| private const val ESC = "\u001B" | ||
| internal const val CSI = "$ESC[" | ||
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| internal const val ansiReset = "${CSI}0" | ||
| internal const val clearLine = "${CSI}K" | ||
| internal const val cursorUp = "${CSI}F" | ||
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| internal const val ansiSeparator = ";" | ||
| internal const val ansiClosingCharacter = "m" | ||
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| internal const val ansiFgColorSelector = 38 | ||
| internal const val ansiFgColorReset = 39 | ||
| internal const val ansiFgColorOffset = 0 | ||
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| internal const val ansiBgColorSelector = 48 | ||
| internal const val ansiBgColorReset = 49 | ||
| internal const val ansiBgColorOffset = 10 | ||
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| internal const val ansiSelectorColor256 = 5 | ||
| internal const val ansiSelectorColorRgb = 2 | ||
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| internal fun MordantAnsiLevel.toMosaicAnsiLevel(): AnsiLevel { | ||
| return when (this) { | ||
| MordantAnsiLevel.NONE -> AnsiLevel.NONE | ||
| MordantAnsiLevel.ANSI16 -> AnsiLevel.ANSI16 | ||
| MordantAnsiLevel.ANSI256 -> AnsiLevel.ANSI256 | ||
| MordantAnsiLevel.TRUECOLOR -> AnsiLevel.TRUECOLOR | ||
| } | ||
| } | ||
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| // simpler version without full conversion to HSV | ||
| // https://github.com/ajalt/colormath/blob/4a0cc9796c743cb4965407204ee63b40aaf22fca/colormath/src/commonMain/kotlin/com/github/ajalt/colormath/model/RGB.kt#L301 | ||
| internal fun Color.toAnsi16Code(): Int { | ||
| val value = (maxOf(redFloat, greenFloat, blueFloat) * 100).roundToInt() | ||
| if (value == 30) { | ||
| return 30 | ||
| } | ||
| val v = value / 50 | ||
| val ansiCode = 30 + ( | ||
| (blueFloat.roundToInt() * 4) | ||
| or (greenFloat.roundToInt() * 2) | ||
| or redFloat.roundToInt() | ||
| ) | ||
| return if (v == 2) ansiCode + 60 else ansiCode | ||
| } | ||
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| // https://github.com/ajalt/colormath/blob/4a0cc9796c743cb4965407204ee63b40aaf22fca/colormath/src/commonMain/kotlin/com/github/ajalt/colormath/model/RGB.kt#L310 | ||
| internal fun Color.toAnsi256Code(): Int { | ||
| val ri = redInt | ||
| val gi = greenInt | ||
| val bi = blueInt | ||
| // grayscale | ||
| return if (ri == gi && gi == bi) { | ||
| when { | ||
| ri < 8 -> 16 | ||
| ri > 248 -> 231 | ||
| else -> (((ri - 8) / 247.0) * 24.0).roundToInt() + 232 | ||
| } | ||
| } else { | ||
| 16 + (36 * (redFloat * 5).roundToInt()) + | ||
| (6 * (greenFloat * 5).roundToInt()) + | ||
| (blueFloat * 5).roundToInt() | ||
| } | ||
| } |
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