osu/osu.Game/Graphics/Containers/ConstrainedIconContainer.cs

41 lines
1.5 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osuTK;
namespace osu.Game.Graphics.Containers
{
/// <summary>
/// Display an icon that is forced to scale to the size of this container.
/// </summary>
public partial class ConstrainedIconContainer : CompositeDrawable
{
public Drawable Icon
{
get => InternalChild;
set => InternalChild = value;
}
protected override void Update()
{
base.Update();
if (InternalChildren.Count > 0 && InternalChild.DrawSize.X > 0)
{
// We're modifying scale here for a few reasons
// - Guarantees correctness if BorderWidth is being used
// - If we were to use RelativeSize/FillMode, we'd need to set the Icon's RelativeSizeAxes directly.
// We can't do this because we would need access to AutoSizeAxes to set it to none.
// Other issues come up along the way too, so it's not a good solution.
float fitScale = Math.Min(DrawSize.X / InternalChild.DrawSize.X, DrawSize.Y / InternalChild.DrawSize.Y);
InternalChild.Scale = new Vector2(fitScale);
InternalChild.Anchor = Anchor.Centre;
InternalChild.Origin = Anchor.Centre;
}
}
}
}