void slideEvent(RenderBox getBox, BoxConstraints box, Offset globalPosition)
{
float localDx = getBox.globalToLocal(globalPosition).dx - 15f;
float progress = localDx.clamp(0f, box.maxWidth - 30f) / (box.maxWidth - 30f);
switch (trackType)
{
case TrackType.hue:
// 360 is the same as zero
// if set to 360, sliding to end goes to zero
onColorChanged(hsvColor.withHue(progress * 359));
break;
case TrackType.saturation:
onColorChanged(hsvColor.withSaturation(progress));
break;
case TrackType.saturationForHSL:
onColorChanged(Utils.hslToHsv(Utils.hsvToHsl(hsvColor).withSaturation(progress)));
break;
case TrackType.value:
onColorChanged(hsvColor.withValue(progress));
break;
case TrackType.lightness:
onColorChanged(Utils.hslToHsv(Utils.hsvToHsl(hsvColor).withLightness(progress)));
break;
case TrackType.red:
onColorChanged(HSVColorExtention.fromColor(hsvColor.toColor().withRed((progress * 0xff).round())));
break;
case TrackType.green:
onColorChanged(HSVColorExtention.fromColor(hsvColor.toColor().withGreen((progress * 0xff).round())));
break;
case TrackType.blue:
onColorChanged(HSVColorExtention.fromColor(hsvColor.toColor().withBlue((progress * 0xff).round())));
break;
case TrackType.alpha:
onColorChanged(hsvColor.withAlpha(localDx.clamp(0f, box.maxWidth - 30f) / (box.maxWidth - 30f)));
break;
}
}