2020-09-30 16:52:12 +08:00
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// 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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2024-05-22 16:29:39 +08:00
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using System.Numerics;
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2022-01-08 23:12:52 +08:00
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using System.Globalization;
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2020-09-30 16:52:12 +08:00
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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.Graphics.UserInterface;
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using osu.Framework.Localisation;
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using osu.Game.Overlays.Settings;
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using osu.Game.Utils;
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using Vector2 = osuTK.Vector2;
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2023-08-01 06:22:08 +08:00
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namespace osu.Game.Graphics.UserInterfaceV2
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{
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public partial class SliderWithTextBoxInput<T> : CompositeDrawable, IHasCurrentValue<T>
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where T : struct, INumber<T>, IMinMaxValue<T>
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{
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/// <summary>
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/// A custom step value for each key press which actuates a change on this control.
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/// </summary>
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public float KeyboardStep
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{
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get => slider.KeyboardStep;
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set => slider.KeyboardStep = value;
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}
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public Bindable<T> Current
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{
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get => slider.Current;
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set => slider.Current = value;
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}
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private bool instantaneous;
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/// <summary>
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/// Whether changes to the slider should instantaneously transfer to the text box (and vice versa).
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/// If <see langword="false"/>, the transfer will happen on text box commit (explicit, or implicit via focus loss), or on slider drag end.
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/// </summary>
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public bool Instantaneous
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{
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get => instantaneous;
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set
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{
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instantaneous = value;
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slider.TransferValueOnCommit = !instantaneous;
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}
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}
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private readonly SettingsSlider<T> slider;
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private readonly LabelledTextBox textBox;
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public SliderWithTextBoxInput(LocalisableString labelText)
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{
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RelativeSizeAxes = Axes.X;
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AutoSizeAxes = Axes.Y;
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InternalChildren = new Drawable[]
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{
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new FillFlowContainer
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{
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RelativeSizeAxes = Axes.X,
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AutoSizeAxes = Axes.Y,
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Direction = FillDirection.Vertical,
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Spacing = new Vector2(20),
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Children = new Drawable[]
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{
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textBox = new LabelledTextBox
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{
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Label = labelText,
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},
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slider = new SettingsSlider<T>
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{
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TransferValueOnCommit = true,
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RelativeSizeAxes = Axes.X,
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}
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}
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},
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};
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textBox.OnCommit += textCommitted;
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textBox.Current.BindValueChanged(textChanged);
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Current.BindValueChanged(updateTextBoxFromSlider, true);
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}
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public bool TakeFocus() => GetContainingFocusManager().ChangeFocus(textBox);
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private bool updatingFromTextBox;
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private void textChanged(ValueChangedEvent<string> change)
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{
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if (!instantaneous) return;
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tryUpdateSliderFromTextBox();
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}
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private void textCommitted(TextBox t, bool isNew)
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{
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tryUpdateSliderFromTextBox();
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// If the attempted update above failed, restore text box to match the slider.
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Current.TriggerChange();
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}
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private void tryUpdateSliderFromTextBox()
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{
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updatingFromTextBox = true;
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try
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{
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switch (slider.Current)
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{
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case Bindable<int> bindableInt:
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bindableInt.Value = int.Parse(textBox.Current.Value);
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break;
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case Bindable<double> bindableDouble:
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bindableDouble.Value = double.Parse(textBox.Current.Value);
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break;
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default:
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slider.Current.Parse(textBox.Current.Value, CultureInfo.CurrentCulture);
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break;
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}
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}
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catch
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{
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// ignore parsing failures.
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// sane state will eventually be restored by a commit (either explicit, or implicit via focus loss).
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}
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updatingFromTextBox = false;
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}
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private void updateTextBoxFromSlider(ValueChangedEvent<T> _)
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{
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if (updatingFromTextBox) return;
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decimal decimalValue = decimal.CreateTruncating(slider.Current.Value);
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textBox.Text = decimalValue.ToString($@"N{FormatUtils.FindPrecision(decimalValue)}");
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}
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}
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}
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