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osu-lazer/osu.Game/Screens/Select/FooterButton.cs

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// 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.
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#nullable disable
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using System;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Shapes;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Input.Bindings;
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using osu.Framework.Input.Events;
using osu.Framework.Localisation;
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using osu.Game.Graphics.Containers;
using osu.Game.Graphics.Sprites;
using osu.Game.Input.Bindings;
using osuTK;
using osuTK.Graphics;
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namespace osu.Game.Screens.Select
{
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public partial class FooterButton : OsuClickableContainer, IKeyBindingHandler<GlobalAction>
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{
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public const float SHEAR_WIDTH = 7.5f;
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protected static readonly Vector2 SHEAR = new Vector2(SHEAR_WIDTH / Footer.HEIGHT, 0);
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public LocalisableString Text
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{
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get => SpriteText?.Text ?? default;
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set
{
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if (SpriteText != null)
SpriteText.Text = value;
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}
}
private Color4 deselectedColour;
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public Color4 DeselectedColour
{
get => deselectedColour;
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set
{
deselectedColour = value;
if (light.Colour != SelectedColour)
light.Colour = value;
}
}
private Color4 selectedColour;
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public Color4 SelectedColour
{
get => selectedColour;
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set
{
selectedColour = value;
box.Colour = selectedColour;
}
}
protected FillFlowContainer ButtonContentContainer;
protected readonly Container TextContainer;
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protected readonly SpriteText SpriteText;
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private readonly Box box;
private readonly Box light;
public FooterButton()
{
AutoSizeAxes = Axes.Both;
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Shear = SHEAR;
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Children = new Drawable[]
{
box = new Box
{
RelativeSizeAxes = Axes.Both,
EdgeSmoothness = new Vector2(2, 0),
Colour = Color4.White,
Alpha = 0,
},
light = new Box
{
Height = 4,
EdgeSmoothness = new Vector2(2, 0),
RelativeSizeAxes = Axes.X,
},
new Container
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{
AutoSizeAxes = Axes.Both,
Children = new Drawable[]
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{
ButtonContentContainer = new FillFlowContainer
{
Anchor = Anchor.CentreLeft,
Origin = Anchor.CentreLeft,
Direction = FillDirection.Horizontal,
Shear = -SHEAR,
AutoSizeAxes = Axes.X,
Height = 50,
Spacing = new Vector2(15, 0),
Children = new Drawable[]
{
TextContainer = new Container
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
AutoSizeAxes = Axes.Both,
Child = SpriteText = new OsuSpriteText
{
AlwaysPresent = true,
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
}
},
},
},
},
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},
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};
}
protected override void LoadComplete()
{
base.LoadComplete();
Enabled.BindValueChanged(_ => updateDisplay(), true);
}
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public Action Hovered;
public Action HoverLost;
public GlobalAction? Hotkey;
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private bool mouseDown;
protected override void UpdateAfterChildren()
{
base.UpdateAfterChildren();
float horizontalMargin = (100 - TextContainer.Width) / 2;
ButtonContentContainer.Padding = new MarginPadding
{
Left = horizontalMargin,
// right side margin offset to compensate for shear
Right = horizontalMargin - SHEAR_WIDTH / 2
};
}
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protected override bool OnHover(HoverEvent e)
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{
Hovered?.Invoke();
updateDisplay();
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return true;
}
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protected override void OnHoverLost(HoverLostEvent e)
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{
HoverLost?.Invoke();
updateDisplay();
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}
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protected override bool OnMouseDown(MouseDownEvent e)
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{
if (!Enabled.Value)
return true;
mouseDown = true;
updateDisplay();
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return base.OnMouseDown(e);
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}
protected override void OnMouseUp(MouseUpEvent e)
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{
mouseDown = false;
updateDisplay();
base.OnMouseUp(e);
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}
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protected override bool OnClick(ClickEvent e)
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{
if (!Enabled.Value)
return true;
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box.ClearTransforms();
box.Alpha = 1;
box.FadeOut(Footer.TRANSITION_LENGTH * 3, Easing.OutQuint);
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return base.OnClick(e);
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}
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public virtual bool OnPressed(KeyBindingPressEvent<GlobalAction> e)
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{
if (e.Action == Hotkey && !e.Repeat)
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{
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TriggerClick();
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return true;
}
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return false;
}
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public virtual void OnReleased(KeyBindingReleaseEvent<GlobalAction> e) { }
private void updateDisplay()
{
this.FadeTo(Enabled.Value ? 1 : 0.25f, Footer.TRANSITION_LENGTH, Easing.OutQuint);
light.ScaleTo(Enabled.Value && IsHovered ? new Vector2(1, 2) : new Vector2(1), Footer.TRANSITION_LENGTH, Easing.OutQuint);
light.FadeColour(Enabled.Value && IsHovered ? SelectedColour : DeselectedColour, Footer.TRANSITION_LENGTH, Easing.OutQuint);
box.FadeTo(Enabled.Value & mouseDown ? 0.3f : 0f, Footer.TRANSITION_LENGTH * 2, Easing.OutQuint);
if (Enabled.Value && IsHovered)
Hovered?.Invoke();
else
HoverLost?.Invoke();
}
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}
}