empathicqubit/Signal-Android
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

Add black and white to the color picker.

Browse source
This commit is contained in:
Greyson Parrelli 2021-09-07 20:15:14 -04:00
parent ddad9acef1
commit 58a22f0eea
1 changed files with 24 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
app/src/main/java/org/thoughtcrime/securesms/scribbles/HSVColorSlider.kt
View file

@ -24,15 +24,35 @@ import org.thoughtcrime.securesms.util.customizeOnDraw
*/ */
object HSVColorSlider { object HSVColorSlider {
private const val MAX_SEEK_DIVISIONS = 1023
private const val MAX_HUE = 360 private const val MAX_HUE = 360
private const val COLOR_DIVISIONS = 1023
private const val BLACK_DIVISIONS = 175
private const val WHITE_DIVISIONS = 125
private const val MAX_SEEK_DIVISIONS = COLOR_DIVISIONS + BLACK_DIVISIONS + WHITE_DIVISIONS
private const val STANDARD_LIGHTNESS = 0.4f
private val colors: IntArray = (0..MAX_SEEK_DIVISIONS).map { hue -> private val colors: IntArray = (0..COLOR_DIVISIONS).map { hue ->
ColorUtils.HSLToColor( ColorUtils.HSLToColor(
floatArrayOf( floatArrayOf(
hue.toHue(MAX_SEEK_DIVISIONS), hue.toHue(COLOR_DIVISIONS),
1f, 1f,
calculateLightness(hue.toFloat(), 0.4f) calculateLightness(hue.toFloat(), STANDARD_LIGHTNESS)
)
)
}.toIntArray() + (BLACK_DIVISIONS downTo 0).map { value ->
ColorUtils.HSLToColor(
floatArrayOf(
MAX_HUE.toFloat(),
1f,
value / BLACK_DIVISIONS.toFloat() * STANDARD_LIGHTNESS
)
)
}.toIntArray() + (0..WHITE_DIVISIONS).map { value ->
ColorUtils.HSLToColor(
floatArrayOf(
MAX_HUE.toFloat(),
0f,
value / WHITE_DIVISIONS.toFloat()
) )
) )
}.toIntArray() }.toIntArray()
@ -90,7 +110,6 @@ object HSVColorSlider {
} }
private fun calculateLightness(hue: Float, valueFor60To80: Float = 0.3f): Float { private fun calculateLightness(hue: Float, valueFor60To80: Float = 0.3f): Float {
val point1 = PointF() val point1 = PointF()
val point2 = PointF() val point2 = PointF()