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

59 lines
2.0 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 osu.Framework.Graphics.Effects;
using osuTK;
namespace osu.Game.Graphics.Containers
{
/// <summary>
/// Display an icon that is forced to scale to the size of this container.
/// </summary>
public class ConstrainedIconContainer : CompositeDrawable
{
public Drawable Icon
{
get => InternalChild;
set => InternalChild = value;
}
/// <summary>
/// Determines an edge effect of this <see cref="Container"/>.
/// Edge effects are e.g. glow or a shadow.
/// Only has an effect when <see cref="CompositeDrawable.Masking"/> is true.
/// </summary>
public new EdgeEffectParameters EdgeEffect
{
get => base.EdgeEffect;
set => base.EdgeEffect = 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.
var 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;
}
}
public ConstrainedIconContainer()
{
Masking = true;
}
}
}