298 lines
10 KiB
C#
298 lines
10 KiB
C#
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using System.Windows;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Shapes;
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using PCL.Core.App.Localization;
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namespace PCL;
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public partial class MySlider
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{
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public delegate void ChangeEventHandler(object sender, bool user);
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public delegate void PreviewChangeEventHandler(object sender, ModBase.RouteEventArgs e);
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// 自定义属性
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private int _Value;
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private bool changeByKey;
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// 拖动
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public Delegate getHintText;
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// 基础
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public int Uuid = ModBase.GetUuid();
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public MySlider()
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{
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InitializeComponent();
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SizeChanged += RefreshWidth;
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MouseLeftButtonDown += DragStart;
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IsEnabledChanged += (_, _) => RefreshColor();
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MouseEnter += (_, _) => RefreshColor();
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MouseLeave += (_, _) => RefreshColor();
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MouseEnter += (_, _) => MySlider_MouseEnter();
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KeyDown += MySlider_KeyDown;
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}
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public int MaxValue
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{
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get => field;
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set
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{
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if (value == field)
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return;
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field = value;
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RefreshWidth(null, null);
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}
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} = 100;
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public int Value
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{
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get => _Value;
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set
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{
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try
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{
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value = (int)Math.Round(ModBase.MathClamp(value, 0d, MaxValue));
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if (_Value == value)
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return;
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// 触发 Preview 事件，修改新值
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var oldValue = _Value;
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_Value = value;
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if (ModAnimation.AniControlEnabled == 0)
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{
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var e = new ModBase.RouteEventArgs();
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PreviewChange?.Invoke(this, e);
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if (e.handled)
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{
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_Value = oldValue;
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DragStop();
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return;
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}
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}
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if (IsLoaded && ModAnimation.AniControlEnabled == 0)
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{
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if (ActualWidth < ShapeDot.Width)
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return;
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var newWidth = _Value / (double)MaxValue * (ActualWidth - ShapeDot.Width);
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var deltaProcess =
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Math.Abs(LineFore.Width / (ActualWidth - ShapeDot.Width) - _Value / (double)MaxValue);
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var time = (1d - Math.Pow(1d - deltaProcess, 3d)) * 300d + (changeByKey ? 100 : 0);
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ModAnimation.AniStart(
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new[]
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{
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ModAnimation.AaWidth(LineFore,
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Math.Max(0d, newWidth + (newWidth < 0.5d ? 0d : 0.5d)) - LineFore.Width,
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(int)Math.Round(time),
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ease: time > 50d
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? new ModAnimation.AniEaseOutFluent()
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: new ModAnimation.AniEaseLinear()),
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ModAnimation.AaWidth(LineBack,
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Math.Max(0d,
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ActualWidth - ShapeDot.Width - newWidth +
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(ActualWidth - ShapeDot.Width - newWidth < 0.5d ? 0d : 0.5d)) - LineBack.Width,
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(int)Math.Round(time),
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ease: time > 50d
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? new ModAnimation.AniEaseOutFluent()
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: new ModAnimation.AniEaseLinear()),
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ModAnimation.AaX(ShapeDot, newWidth - ShapeDot.Margin.Left, (int)Math.Round(time),
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ease: time > 50d
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? new ModAnimation.AniEaseOutFluent()
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: new ModAnimation.AniEaseLinear())
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}, "MySlider Progress " + Uuid);
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}
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else
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{
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RefreshWidth(null, null);
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}
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if (ModAnimation.AniControlEnabled == 0)
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Change?.Invoke(this, false);
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}
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catch (Exception ex)
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{
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ModBase.Log(
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ex,
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"滑动条进度改变出错",
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ModBase.LogLevel.Hint,
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userSummary: Lang.Text("Application.Control.Error.OperationFailed"));
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}
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}
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}
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// 按键改变
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public uint ValueByKey { get; set; } = 1U;
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public event ChangeEventHandler? Change;
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public event PreviewChangeEventHandler? PreviewChange;
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private void RefreshWidth(object sender, SizeChangedEventArgs? e)
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{
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if (e is not null)
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PanMain.Width = e.NewSize.Width;
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ModAnimation.AniStop("MySlider Progress " + Uuid);
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var newWidth = _Value / (double)MaxValue * (ActualWidth - ShapeDot.Width);
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LineFore.Width = Math.Max(0d, newWidth + (newWidth < 0.5d ? 0d : 0.5d));
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LineBack.Width = Math.Max(0d,
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ActualWidth - ShapeDot.Width - newWidth + (ActualWidth - ShapeDot.Width - newWidth < 0.5d ? 0d : 0.5d));
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ModBase.SetLeft(ShapeDot, newWidth);
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}
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private void DragStart(object sender, MouseButtonEventArgs e)
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{
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CaptureMouse();
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MouseMove += OnDragMouseMove;
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e.Handled = true; // 防止 ScrollViewer 失焦问题
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ModMain.dragControl = this;
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RefreshColor();
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ModMain.frmMain.DragDoing();
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ModAnimation.AniStart(
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ModAnimation.AaScaleTransform(ShapeDot, 1.3d - ((ScaleTransform)ShapeDot.RenderTransform).ScaleX, 40,
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ease: new ModAnimation.AniEaseOutFluent()), "MySlider Scale " + Uuid);
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RefreshPopup();
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ModAnimation.AniStop("MySlider KeyPopup " + Uuid);
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}
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public void DragDoing()
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{
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var percent =
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ModBase.MathClamp((Mouse.GetPosition(PanMain).X - ShapeDot.Width / 2d) / (ActualWidth - ShapeDot.Width), 0d,
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1d);
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var newValue = (int)Math.Round(percent * MaxValue);
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if (newValue != Value) Value = newValue;
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RefreshPopup();
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}
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private void OnDragMouseMove(object sender, MouseEventArgs e)
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{
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DragDoing();
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}
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public void DragStop()
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{
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MouseMove -= OnDragMouseMove;
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if (IsMouseCaptured) ReleaseMouseCapture();
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RefreshColor();
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ModAnimation.AniStart(
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ModAnimation.AaScaleTransform(ShapeDot, 1d - ((ScaleTransform)ShapeDot.RenderTransform).ScaleX, 200,
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ease: new ModAnimation.AniEaseOutFluent()), "MySlider Scale " + Uuid);
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Popup.IsOpen = false;
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}
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public void RefreshPopup()
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{
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if (getHintText is null)
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return;
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Popup.IsOpen = true;
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TextHint.Text = getHintText.DynamicInvoke(Value)?.ToString() ?? "";
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var typeface = new Typeface(TextHint.FontFamily, TextHint.FontStyle, TextHint.FontWeight, TextHint.FontStretch);
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var formattedText = new FormattedText(TextHint.Text, Thread.CurrentThread.CurrentCulture,
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TextHint.FlowDirection, typeface, TextHint.FontSize, TextHint.Foreground, ModBase.dpi);
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TextHint.Width = formattedText.Width; // 使用手动测量的宽度修复 #1057
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}
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// 指向动画
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private void RefreshColor()
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{
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try
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{
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// 判断当前颜色
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string foregroundName;
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string dotFillName;
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int animationTime;
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if (IsEnabled)
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{
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if (ModMain.dragControl is not null && ModMain.dragControl.Equals(this) || IsMouseOver)
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{
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foregroundName = "ColorBrush3";
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dotFillName = "ColorBrush3";
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animationTime = 40;
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}
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else
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{
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foregroundName = "ColorBrushBg0";
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dotFillName = "ColorBrushBg0";
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animationTime = 100;
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}
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}
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else
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{
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foregroundName = "ColorBrushGray5";
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dotFillName = "ColorBrushGray5";
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animationTime = 200;
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}
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// 触发颜色动画
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if (IsLoaded && ModAnimation.AniControlEnabled == 0) // 防止默认属性变更触发动画
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{
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// 有动画
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ModAnimation.AniStart(
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new[]
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{
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ModAnimation.AaColor(this, BorderBrushProperty, foregroundName, animationTime),
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ModAnimation.AaColor(ShapeDot, Shape.FillProperty, dotFillName, animationTime)
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}, "MySlider Color " + Uuid);
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}
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else
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{
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// 无动画
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ModAnimation.AniStop("MySlider Color " + Uuid);
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SetResourceReference(BorderBrushProperty, foregroundName);
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ShapeDot.SetResourceReference(Shape.FillProperty, dotFillName);
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}
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}
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catch (Exception ex)
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{
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ModBase.Log(ex, "滑动条颜色改变出错");
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}
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}
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private void MySlider_MouseEnter()
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{
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Focus(); // 确保按键能改变值
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}
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private void MySlider_KeyDown(object sender, KeyEventArgs e)
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{
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// 拒绝一边拖动一边用按键改变
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if (ReferenceEquals(this, ModMain.dragControl))
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return;
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// 改变值
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if (e.Key == Key.Left)
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{
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changeByKey = true;
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Value = (int)(Value - ValueByKey);
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changeByKey = false;
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e.Handled = true;
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}
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else if (e.Key == Key.Right)
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{
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changeByKey = true;
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Value = (int)(Value + ValueByKey);
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changeByKey = false;
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e.Handled = true;
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}
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else
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{
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return;
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}
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// 更新 Popup
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if (getHintText is not null)
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{
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RefreshPopup();
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ModAnimation.AniStop("MySlider KeyPopup " + Uuid);
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ModAnimation.AniStart(
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ModAnimation.AaCode(() => Popup.IsOpen = false, (int)Math.Round(700d * ModAnimation.aniSpeed)),
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"MySlider KeyPopup " + Uuid);
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}
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}
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}
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