keii.dev
A game framework written with osu! in mind.
1// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
2// See the LICENCE file in the repository root for full licence text.
3
4using osu.Framework.Bindables;
5using osu.Framework.Graphics.Containers;
6using osu.Framework.Graphics.Shapes;
7
8namespace osu.Framework.Graphics.UserInterface
9{
10 /// <summary>
11 /// Control that allows for specifying a colour using the hue-saturation-value (HSV) colour model.
12 /// </summary>
13 public abstract partial class HSVColourPicker : CompositeDrawable, IHasCurrentValue<Colour4>
14 {
15 private readonly BindableWithCurrent<Colour4> current = new BindableWithCurrent<Colour4>();
16
17 public Bindable<Colour4> Current
18 {
19 get => current.Current;
20 set => current.Current = value;
21 }
22
23 /// <summary>
24 /// The background of the control.
25 /// </summary>
26 protected Box Background { get; }
27
28 /// <summary>
29 /// Contains the elements of the colour picker.
30 /// </summary>
31 protected FillFlowContainer Content { get; }
32
33 private readonly SaturationValueSelector saturationValueSelector;
34 private readonly HueSelector hueSelector;
35
36 protected HSVColourPicker()
37 {
38 Width = 300;
39 AutoSizeAxes = Axes.Y;
40 Current.Value = Colour4.White;
41
42 InternalChildren = new Drawable[]
43 {
44 Background = new Box
45 {
46 RelativeSizeAxes = Axes.Both
47 },
48 Content = new FillFlowContainer
49 {
50 RelativeSizeAxes = Axes.X,
51 AutoSizeAxes = Axes.Y,
52 Direction = FillDirection.Vertical,
53 Children = new Drawable[]
54 {
55 saturationValueSelector = CreateSaturationValueSelector(),
56 hueSelector = CreateHueSelector()
57 }
58 }
59 };
60 }
61
62 /// <summary>
63 /// Creates the control to be used for interactively selecting the hue of the target colour.
64 /// </summary>
65 protected abstract HueSelector CreateHueSelector();
66
67 /// <summary>
68 /// Creates the control to be used for interactively selecting the saturation and value of the target colour.
69 /// </summary>
70 protected abstract SaturationValueSelector CreateSaturationValueSelector();
71
72 public override bool IsPresent => base.IsPresent
73 || saturationValueSelector.Scheduler.HasPendingTasks
74 || hueSelector.Scheduler.HasPendingTasks;
75
76 protected override void LoadComplete()
77 {
78 base.LoadComplete();
79
80 saturationValueSelector.Current.BindTo(current);
81 hueSelector.Hue.BindTo(saturationValueSelector.Hue);
82 }
83 }
84}