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193 lines
6.1 KiB
C#
193 lines
6.1 KiB
C#
// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System.Collections.Generic;
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using osu.Framework.Allocation;
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using OpenTK.Graphics;
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using osu.Framework.Configuration;
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using osu.Framework.Extensions.Color4Extensions;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Colour;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Graphics.UserInterface;
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using osu.Framework.Input;
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using osu.Game.Graphics;
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using osu.Game.Graphics.Sprites;
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namespace osu.Game.Overlays.Settings
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{
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public abstract class SettingsItem<T> : Container, IFilterable
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{
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protected abstract Drawable CreateControl();
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protected Drawable Control { get; }
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private IHasCurrentValue<T> controlWithCurrent => Control as IHasCurrentValue<T>;
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protected override Container<Drawable> Content => FlowContent;
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protected readonly FillFlowContainer FlowContent;
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private SpriteText text;
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private readonly SettingsItemDefaultIndicator<T> defaultIndicator = new SettingsItemDefaultIndicator<T>();
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public bool ShowsDefaultIndicator = true;
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private Color4? defaultIndicatorColour;
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public Color4 DefaultIndicatorColour
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{
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get { return defaultIndicatorColour ?? Color4.White; }
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set
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{
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defaultIndicatorColour = value;
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defaultIndicator?.SetIndicatorColour(DefaultIndicatorColour);
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}
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}
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public virtual string LabelText
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{
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get { return text?.Text ?? string.Empty; }
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set
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{
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if (text == null)
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{
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// construct lazily for cases where the label is not needed (may be provided by the Control).
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Add(text = new OsuSpriteText { Depth = 1 });
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}
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text.Text = value;
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}
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}
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// hold a reference to the provided bindable so we don't have to in every settings section.
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private Bindable<T> bindable;
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public virtual Bindable<T> Bindable
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{
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get
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{
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return bindable;
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}
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set
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{
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bindable = value;
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controlWithCurrent?.Current.BindTo(bindable);
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if (ShowsDefaultIndicator)
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{
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defaultIndicator.Bindable.BindTo(bindable);
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defaultIndicator.Bindable.TriggerChange();
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}
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}
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}
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public IEnumerable<string> FilterTerms => new[] { LabelText };
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public bool MatchingFilter
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{
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set
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{
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// probably needs a better transition.
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this.FadeTo(value ? 1 : 0);
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}
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}
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protected SettingsItem()
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{
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RelativeSizeAxes = Axes.X;
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AutoSizeAxes = Axes.Y;
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Padding = new MarginPadding { Right = SettingsOverlay.CONTENT_MARGINS };
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FlowContent = new FillFlowContainer
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{
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RelativeSizeAxes = Axes.X,
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AutoSizeAxes = Axes.Y,
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Padding = new MarginPadding { Left = SettingsOverlay.CONTENT_MARGINS, Right = 5 },
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};
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if ((Control = CreateControl()) != null)
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{
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if (controlWithCurrent != null)
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controlWithCurrent.Current.DisabledChanged += disabled => { Colour = disabled ? Color4.Gray : Color4.White; };
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FlowContent.Add(Control);
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}
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}
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[BackgroundDependencyLoader]
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private void load(OsuColour colours)
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{
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AddInternal(FlowContent);
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if (defaultIndicator != null)
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{
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if (!defaultIndicatorColour.HasValue)
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defaultIndicatorColour = colours.Yellow;
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defaultIndicator.SetIndicatorColour(DefaultIndicatorColour);
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AddInternal(defaultIndicator);
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}
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}
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private class SettingsItemDefaultIndicator<T> : Box
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{
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internal readonly Bindable<T> Bindable = new Bindable<T>();
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private Color4 indicatorColour;
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private bool hovering;
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public SettingsItemDefaultIndicator()
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{
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Bindable.ValueChanged += value => UpdateState();
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Bindable.DisabledChanged += disabled => UpdateState();
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RelativeSizeAxes = Axes.Y;
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Width = SettingsOverlay.CONTENT_MARGINS;
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Alpha = 0f;
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}
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public override bool HandleInput => true;
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protected override bool OnMouseDown(InputState state, MouseDownEventArgs args) => true;
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protected override bool OnMouseUp(InputState state, MouseUpEventArgs args) => true;
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protected override bool OnClick(InputState state)
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{
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if (!Bindable.Disabled)
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Bindable.SetDefault();
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return true;
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}
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protected override bool OnHover(InputState state)
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{
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hovering = true;
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UpdateState();
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return true;
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}
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protected override void OnHoverLost(InputState state)
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{
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hovering = false;
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UpdateState();
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}
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internal void SetIndicatorColour(Color4 indicatorColour)
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{
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this.indicatorColour = indicatorColour;
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UpdateState();
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}
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internal void UpdateState()
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{
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var colour = Bindable.Disabled ? Color4.Gray : indicatorColour;
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Alpha = Bindable.IsDefault ? 0f : hovering && !Bindable.Disabled ? 1f : 0.5f;
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Colour = ColourInfo.GradientHorizontal(colour.Opacity(0.8f), colour.Opacity(0));
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}
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}
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}
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}
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