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174 lines
6.1 KiB
C#
174 lines
6.1 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Screens;
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using osu.Game.Configuration;
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using osu.Game.Screens;
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using osu.Game.Screens.Backgrounds;
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using osuTK;
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namespace osu.Game.Graphics.Containers
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{
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/// <summary>
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/// Handles user-defined scaling, allowing application at multiple levels defined by <see cref="ScalingMode"/>.
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/// </summary>
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public class ScalingContainer : Container
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{
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private Bindable<float> sizeX;
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private Bindable<float> sizeY;
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private Bindable<float> posX;
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private Bindable<float> posY;
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private readonly ScalingMode? targetMode;
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private Bindable<ScalingMode> scalingMode;
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private readonly Container content;
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protected override Container<Drawable> Content => content;
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
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private readonly Container sizableContainer;
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private BackgroundScreenStack backgroundStack;
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/// <summary>
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/// Create a new instance.
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/// </summary>
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/// <param name="targetMode">The mode which this container should be handling. Handles all modes if null.</param>
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public ScalingContainer(ScalingMode? targetMode = null)
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{
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this.targetMode = targetMode;
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RelativeSizeAxes = Axes.Both;
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InternalChild = sizableContainer = new AlwaysInputContainer
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{
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RelativeSizeAxes = Axes.Both,
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RelativePositionAxes = Axes.Both,
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CornerRadius = 10,
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Child = content = new ScalingDrawSizePreservingFillContainer(targetMode != ScalingMode.Gameplay)
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};
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}
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private class ScalingDrawSizePreservingFillContainer : DrawSizePreservingFillContainer
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{
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private readonly bool applyUIScale;
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private Bindable<float> uiScale;
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
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public ScalingDrawSizePreservingFillContainer(bool applyUIScale)
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{
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this.applyUIScale = applyUIScale;
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}
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[BackgroundDependencyLoader]
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private void load(OsuConfigManager osuConfig)
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{
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if (applyUIScale)
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{
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uiScale = osuConfig.GetBindable<float>(OsuSetting.UIScale);
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uiScale.BindValueChanged(scaleChanged, true);
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}
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}
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private void scaleChanged(ValueChangedEvent<float> args)
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{
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this.ScaleTo(new Vector2(args.NewValue), 500, Easing.Out);
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this.ResizeTo(new Vector2(1 / args.NewValue), 500, Easing.Out);
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}
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}
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[BackgroundDependencyLoader]
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private void load(OsuConfigManager config)
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{
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scalingMode = config.GetBindable<ScalingMode>(OsuSetting.Scaling);
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scalingMode.ValueChanged += _ => updateSize();
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sizeX = config.GetBindable<float>(OsuSetting.ScalingSizeX);
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sizeX.ValueChanged += _ => updateSize();
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sizeY = config.GetBindable<float>(OsuSetting.ScalingSizeY);
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sizeY.ValueChanged += _ => updateSize();
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posX = config.GetBindable<float>(OsuSetting.ScalingPositionX);
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posX.ValueChanged += _ => updateSize();
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posY = config.GetBindable<float>(OsuSetting.ScalingPositionY);
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posY.ValueChanged += _ => updateSize();
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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updateSize();
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sizableContainer.FinishTransforms();
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}
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private bool requiresBackgroundVisible => (scalingMode.Value == ScalingMode.Everything || scalingMode.Value == ScalingMode.ExcludeOverlays) && (sizeX.Value != 1 || sizeY.Value != 1);
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private void updateSize()
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{
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const float fade_time = 500;
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if (targetMode == ScalingMode.Everything)
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{
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// the top level scaling container manages the background to be displayed while scaling.
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if (requiresBackgroundVisible)
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{
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if (backgroundStack == null)
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{
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AddInternal(backgroundStack = new BackgroundScreenStack
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{
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Colour = OsuColour.Gray(0.1f),
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Alpha = 0,
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Depth = float.MaxValue
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});
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backgroundStack.Push(new ScalingBackgroundScreen());
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}
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backgroundStack.FadeIn(fade_time);
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}
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else
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backgroundStack?.FadeOut(fade_time);
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}
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bool scaling = targetMode == null || scalingMode.Value == targetMode;
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var targetSize = scaling ? new Vector2(sizeX.Value, sizeY.Value) : Vector2.One;
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var targetPosition = scaling ? new Vector2(posX.Value, posY.Value) * (Vector2.One - targetSize) : Vector2.Zero;
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bool requiresMasking = scaling && targetSize != Vector2.One;
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if (requiresMasking)
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sizableContainer.Masking = true;
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sizableContainer.MoveTo(targetPosition, 500, Easing.OutQuart);
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sizableContainer.ResizeTo(targetSize, 500, Easing.OutQuart).OnComplete(_ => { sizableContainer.Masking = requiresMasking; });
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}
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private class ScalingBackgroundScreen : BackgroundScreenDefault
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{
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public override void OnEntering(IScreen last)
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{
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this.FadeInFromZero(4000, Easing.OutQuint);
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}
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}
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private class AlwaysInputContainer : Container
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{
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
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public AlwaysInputContainer()
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{
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RelativeSizeAxes = Axes.Both;
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}
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}
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}
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}
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