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104 lines
2.5 KiB
C#
104 lines
2.5 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Shapes;
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using osuTK;
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namespace osu.Game.Graphics.UserInterface
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{
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/// <summary>
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/// A rounded bar which can be expanded or collapsed.
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/// Generally used for tabs or breadcrumbs.
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/// </summary>
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public class ExpandingBar : Circle
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{
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private bool expanded = true;
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public bool Expanded
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{
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get => expanded;
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set
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{
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if (value == expanded)
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return;
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expanded = value;
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updateState();
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}
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}
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private float expandedSize = 4;
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public float ExpandedSize
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{
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get => expandedSize;
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set
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{
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if (value == expandedSize)
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return;
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expandedSize = value;
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updateState();
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}
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}
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private float collapsedSize = 2;
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public float CollapsedSize
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{
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get => collapsedSize;
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set
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{
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if (value == collapsedSize)
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return;
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collapsedSize = value;
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updateState();
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}
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}
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public override Axes RelativeSizeAxes
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{
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get => base.RelativeSizeAxes;
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set
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{
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base.RelativeSizeAxes = Axes.None;
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Size = Vector2.Zero;
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base.RelativeSizeAxes = value;
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updateState();
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}
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}
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public ExpandingBar()
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{
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RelativeSizeAxes = Axes.X;
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Origin = Anchor.Centre;
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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updateState();
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}
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public void Collapse() => Expanded = false;
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public void Expand() => Expanded = true;
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private void updateState()
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{
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float newSize = expanded ? ExpandedSize : CollapsedSize;
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Easing easingType = expanded ? Easing.OutElastic : Easing.Out;
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if (RelativeSizeAxes == Axes.X)
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this.ResizeHeightTo(newSize, 400, easingType);
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else
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this.ResizeWidthTo(newSize, 400, easingType);
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this.FadeTo(expanded ? 1 : 0.5f, 100, Easing.OutQuint);
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}
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}
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}
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