osu/osu.Game/Graphics/UserInterface/OsuButton.cs

150 lines
4.2 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.Diagnostics;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Graphics.UserInterface;
using osu.Framework.Input.Events;
using osu.Game.Graphics.Sprites;
using osuTK.Graphics;
namespace osu.Game.Graphics.UserInterface
{
/// <summary>
/// A button with added default sound effects.
/// </summary>
public class OsuButton : Button
{
public string Text
{
get => SpriteText?.Text;
set
{
if (SpriteText != null)
SpriteText.Text = value;
}
}
private Color4? backgroundColour;
public Color4 BackgroundColour
{
set
{
backgroundColour = value;
Background.FadeColour(value);
}
}
protected override Container<Drawable> Content { get; }
protected Box Hover;
protected Box Background;
protected SpriteText SpriteText;
public OsuButton()
{
Height = 40;
AddInternal(Content = new Container
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Masking = true,
CornerRadius = 5,
RelativeSizeAxes = Axes.Both,
Children = new Drawable[]
{
Background = new Box
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.Both,
},
Hover = new Box
{
Alpha = 0,
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.Both,
Colour = Color4.White.Opacity(.1f),
Blending = BlendingParameters.Additive,
Depth = float.MinValue
},
SpriteText = CreateText(),
new HoverClickSounds(HoverSampleSet.Loud),
}
});
Enabled.BindValueChanged(enabledChanged, true);
}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
if (backgroundColour == null)
BackgroundColour = colours.BlueDark;
Enabled.ValueChanged += enabledChanged;
Enabled.TriggerChange();
}
protected override bool OnClick(ClickEvent e)
{
if (Enabled.Value)
{
Debug.Assert(backgroundColour != null);
Background.FlashColour(backgroundColour.Value, 200);
}
return base.OnClick(e);
}
protected override bool OnHover(HoverEvent e)
{
if (Enabled.Value)
Hover.FadeIn(200, Easing.OutQuint);
return base.OnHover(e);
}
protected override void OnHoverLost(HoverLostEvent e)
{
base.OnHoverLost(e);
Hover.FadeOut(300);
}
protected override bool OnMouseDown(MouseDownEvent e)
{
Content.ScaleTo(0.9f, 4000, Easing.OutQuint);
return base.OnMouseDown(e);
}
protected override bool OnMouseUp(MouseUpEvent e)
{
Content.ScaleTo(1, 1000, Easing.OutElastic);
return base.OnMouseUp(e);
}
protected virtual SpriteText CreateText() => new OsuSpriteText
{
Depth = -1,
Origin = Anchor.Centre,
Anchor = Anchor.Centre,
Font = OsuFont.GetFont(weight: FontWeight.Bold)
};
private void enabledChanged(ValueChangedEvent<bool> e)
{
this.FadeColour(e.NewValue ? Color4.White : Color4.Gray, 200, Easing.OutQuint);
}
}
}