osu-lazer/osu.Game/Graphics/UserInterface/TooltipIconButton.cs

// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE

using OpenTK;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Cursor;
using osu.Framework.Graphics.Shapes;
using osu.Game.Graphics.Containers;

namespace osu.Game.Graphics.UserInterface
{
    public class TooltipIconButton : OsuClickableContainer, IHasTooltip
    {
        private readonly SpriteIcon icon;

        public FontAwesome Icon
        {
            get { return icon.Icon; }
            set { icon.Icon = value; }
        }

        public TooltipIconButton()
        {
            Children = new Drawable[]
                {
                    new Box
                    {
                        RelativeSizeAxes = Axes.Both,
                        Alpha = 0,
                    },
                    icon = new SpriteIcon
                    {
                        Origin = Anchor.Centre,
                        Anchor = Anchor.Centre,
                        Size = new Vector2(18),
                    }
                };
        }


        public string TooltipText { get; set; }
    }
}