87 lines
2.7 KiB
Kotlin
87 lines
2.7 KiB
Kotlin
/*
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* Copyright (c) 2020 Hemanth Savarla.
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*
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* Licensed under the GNU General Public License v3
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*
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* This is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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*/
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package code.name.monkey.retromusic.extensions
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import androidx.annotation.ColorInt
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import androidx.core.graphics.ColorUtils
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import androidx.palette.graphics.Palette
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fun getSuitableColorFor(palette: Palette, i: Int, i2: Int): Int {
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val dominantSwatch = palette.dominantSwatch
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if (dominantSwatch != null) {
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if (hasEnoughContrast(i, dominantSwatch.rgb)) {
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return dominantSwatch.rgb
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}
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}
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val vibrantSwatch = palette.vibrantSwatch
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if (vibrantSwatch != null) {
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if (hasEnoughContrast(i, vibrantSwatch.rgb)) {
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return vibrantSwatch.rgb
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}
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}
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val darkVibrantSwatch = palette.darkVibrantSwatch
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if (darkVibrantSwatch != null) {
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if (hasEnoughContrast(i, darkVibrantSwatch.rgb)) {
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return darkVibrantSwatch.rgb
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}
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}
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val lightVibrantSwatch = palette.lightVibrantSwatch
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if (lightVibrantSwatch != null) {
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if (hasEnoughContrast(i, lightVibrantSwatch.rgb)) {
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return lightVibrantSwatch.rgb
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}
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}
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val darkMutedSwatch = palette.darkMutedSwatch
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if (darkMutedSwatch != null) {
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if (hasEnoughContrast(i, darkMutedSwatch.rgb)) {
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return darkMutedSwatch.rgb
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}
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}
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val lightMutedSwatch = palette.lightMutedSwatch
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if (lightMutedSwatch != null) {
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if (hasEnoughContrast(i, lightMutedSwatch.rgb)) {
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return lightMutedSwatch.rgb
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}
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}
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val mutedSwatch = palette.mutedSwatch
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if (mutedSwatch != null) {
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if (hasEnoughContrast(i, mutedSwatch.rgb)) {
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return mutedSwatch.rgb
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}
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}
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return i2
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}
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fun hasEnoughContrast(i: Int, i2: Int): Boolean {
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return ColorUtils.calculateContrast(i2, i) >= 2.toDouble()
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}
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fun hasEnoughLuminance(i: Int): Boolean {
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return ColorUtils.calculateLuminance(i) >= 0.4f.toDouble()
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}
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fun isBlack(fArr: FloatArray): Boolean {
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return fArr[2] <= 0.035f
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}
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fun isNearRedLine(fArr: FloatArray): Boolean {
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val f = fArr[0]
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return f >= 10.0f && f <= 37.0f && fArr[1] <= 0.82f
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}
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fun isDark(@ColorInt i: Int): Boolean {
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return ColorUtils.calculateLuminance(i) < 0.5
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}
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