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non-linear color picker range slider #142

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non-linear color picker range slider #142

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54d8618
add support for nonlinear float sliders, color picker range slider is…
johncosfm Dec 23, 2025
32a53e3
format
johncosfm Dec 23, 2025
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19 changes: 18 additions & 1 deletion engine/Sandbox.Tools/ControlWidget/FloatControlWidget.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,11 @@ public class FloatControlWidget : StringControlWidget
public string Icon { get; set; }
public string Label { get; set; }
public Action<Rect, float> SliderPaint { get; set; }
public float SliderCurve
{
get => SliderWidget?.Curve ?? 1f;
set => SliderWidget?.Curve = value;
}

/// <summary>
/// If true we can draw a slider
Expand Down Expand Up @@ -277,6 +282,7 @@ public class FloatSlider : Widget
{
public float Minimum { get; set; }
public float Maximum { get; set; }
public float Curve { get; set; } = 1f;
public Action OnValueEdited { get; set; }
public Color HighlightColor { get; set; } = Theme.TextLight;
public Action<Rect, float> SliderPaint { get; set; }
Expand Down Expand Up @@ -304,12 +310,23 @@ public float DeltaValue
{
get
{
return MathX.LerpInverse( Value, Minimum, Maximum, true );
var v = Value;
if ( Curve != 1 )
{
var range = Maximum - Minimum;
v = MathF.Pow( v / range, 1f / Curve ) * range;
}
return MathX.LerpInverse( v, Minimum, Maximum, true );
}

set
{
var v = MathX.LerpTo( Minimum, Maximum, value, true );
if ( Curve != 1 )
{
var range = Maximum - Minimum;
v = MathF.Pow( v / range, Curve ) * range;
}
Value = v;
}

Expand Down
5 changes: 3 additions & 2 deletions game/addons/tools/Code/Widgets/ColorPicker/ColorPicker.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -150,7 +150,7 @@ public Color ValueWithoutRange

var hueSlider = new HsvFloatControlWidget( so.GetProperty( nameof( Hue ) ), HueSliderPaint );
AlphaSlider = new HsvFloatControlWidget( so.GetProperty( nameof( Alpha ) ), AlphaSliderPaint );
RangeSlider = new HsvFloatControlWidget( so.GetProperty( nameof( Range ) ), RangeSliderPaint );
RangeSlider = new HsvFloatControlWidget( so.GetProperty( nameof( Range ) ), RangeSliderPaint, 3 );

so.OnPropertyStartEdit += ( p ) => EditingStarted?.Invoke();
so.OnPropertyFinishEdit += ( p ) => EditingFinished?.Invoke();
Expand Down Expand Up @@ -382,10 +382,11 @@ class HsvFloatControlWidget : FloatControlWidget
public override bool IncludeLabel => false;
public override bool IsWideMode => true;

public HsvFloatControlWidget( SerializedProperty property, Action<Rect, float> sliderPaint ) : base( property )
public HsvFloatControlWidget( SerializedProperty property, Action<Rect, float> sliderPaint, float curve = 1f ) : base( property )
{
Label = null;
Icon = "multiple_stop";
SliderPaint = sliderPaint;
SliderCurve = curve;
}
}