Change lighten and darken again

2 files changed, 7 insertions, 7 deletions

diff --git a/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/ColorPickerView.kt b/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/ColorPickerView.kt
index 2643d27..da864c9 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/ColorPickerView.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/ColorPickerView.kt
@@ -32,7 +32,7 @@ internal class ColorPickerView @JvmOverloads constructor(
     var circleSize: Int = context.dimen(R.dimen.kau_color_circle_size).toInt()
     val backgroundColor = context.resolveColor(R.attr.md_background_color,
             if (context.resolveColor(android.R.attr.textColorPrimary).isColorDark()) Color.WHITE else 0xff424242.toInt())
-    val backgroundColorTint = backgroundColor.colorToForeground(0.2f)
+    val backgroundColorTint = backgroundColor.colorToForeground()
     lateinit var dialog: MaterialDialog
     lateinit var builder: ColorContract
     lateinit var colorsTop: IntArray
diff --git a/library/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt b/library/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt
index 2c5a395..8ae23d1 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt
@@ -69,25 +69,25 @@ fun Int.withMinAlpha(@IntRange(from = 0L, to = 255L) alpha: Int): Int
         = Color.argb(Math.max(alpha, Color.alpha(this)), Color.red(this), Color.green(this), Color.blue(this))
 
 @ColorInt
-fun Int.lighten(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.2f): Int {
+fun Int.lighten(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.1f): Int {
     val (red, green, blue) = intArrayOf(Color.red(this), Color.green(this), Color.blue(this))
-            .map { Math.min(255f * factor + it, 255f).toInt() }
+            .map { (it * (1f - factor) + 255f * factor).toInt() }
     return Color.argb(Color.alpha(this), red, green, blue)
 }
 
 @ColorInt
-fun Int.darken(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.2f): Int {
+fun Int.darken(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.1f): Int {
     val (red, green, blue) = intArrayOf(Color.red(this), Color.green(this), Color.blue(this))
-            .map { Math.max(it - 255f * factor, 0f).toInt() }
+            .map { (it * (1f - factor)).toInt() }
     return Color.argb(Color.alpha(this), red, green, blue)
 }
 
 @ColorInt
-fun Int.colorToBackground(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.2f): Int
+fun Int.colorToBackground(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.1f): Int
         = if (isColorDark()) darken(factor) else lighten(factor)
 
 @ColorInt
-fun Int.colorToForeground(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.2f): Int
+fun Int.colorToForeground(@FloatRange(from = 0.0, to = 1.0) factor: Float = 0.1f): Int
         = if (isColorDark()) lighten(factor) else darken(factor)
 
 @Throws(IllegalArgumentException::class)