上传公开代码
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龙腾猫跃
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Public Class MySliderDot
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'基础
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Public Uuid As Integer = GetUuid()
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Public Event Change(sender As Object, user As Boolean)
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Public Event PreviewChange(sender As Object, e As RouteEventArgs)
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'自定义属性
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Private _MaxValue As Integer = 100
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Public Property MaxValue As Integer
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Get
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Return _MaxValue
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End Get
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Set(value As Integer)
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If value = _MaxValue Then Exit Property
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_MaxValue = value
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RefreshHeight(Nothing, Nothing)
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End Set
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End Property
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Private ChangeByKey As Boolean = False
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Private _Value As Integer = 0
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Public Property Value As Integer
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Get
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Return _Value
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End Get
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Set(newValue As Integer)
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Try
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newValue = MathRange(newValue, 0, MaxValue)
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If _Value = newValue Then Exit Property
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'触发前瞻事件，修改新值
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Dim OldValue = _Value
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_Value = newValue
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If AniControlEnabled = 0 Then
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Dim e = New RouteEventArgs(False)
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RaiseEvent PreviewChange(Me, e)
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If e.Handled Then
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_Value = OldValue
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Exit Property
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End If
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End If
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If IsLoaded AndAlso AniControlEnabled = 0 Then
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If ActualHeight < 16 Then Exit Property
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Dim NewHeight As Double = _Value / MaxValue * (ActualHeight - 16)
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Dim DeltaProcess As Double = Math.Abs(LineFore.Height / (ActualHeight - 16) - _Value / MaxValue)
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Dim Time As Double = (1 - Math.Pow(1 - DeltaProcess, 3)) * 400 + If(ChangeByKey, 100, 0)
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AniStart({
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AaHeight(LineFore, Math.Max(0, NewHeight + If(NewHeight < 0.5, 0, 0.5)) - LineFore.Height, Time,, If(Time > 50, New AniEaseOutFluent, New AniEaseLinear)),
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AaHeight(LineBack, Math.Max(0, ActualHeight - 16 - NewHeight + If(ActualHeight - 16 - NewHeight < 0.5, 0, 0.5)) - LineBack.Height, Time,, If(Time > 50, New AniEaseOutFluent, New AniEaseLinear)),
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AaY(ShapeDot, NewHeight - ShapeDot.Margin.Top, Time,, If(Time > 50, New AniEaseOutFluent, New AniEaseLinear))
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}, "MySlider Progress " & Uuid)
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Else
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RefreshHeight(Nothing, Nothing)
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End If
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If AniControlEnabled = 0 Then RaiseEvent Change(Me, False)
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Catch ex As Exception
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Log(ex, "滑动条进度改变出错", LogLevel.Hint)
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End Try
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End Set
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End Property
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Private Sub RefreshHeight(sender As Object, e As SizeChangedEventArgs) Handles Me.SizeChanged
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If Not IsNothing(e) Then PanMain.Height = e.NewSize.Height
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AniStop("MySlider Progress " & Uuid)
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Dim NewHeight As Double = _Value / MaxValue * (ActualHeight - 16)
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LineFore.Height = Math.Max(0, NewHeight + If(NewHeight < 0.5, 0, 0.5))
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LineBack.Height = Math.Max(0, ActualHeight - 16 - NewHeight + If(ActualHeight - 16 - NewHeight < 0.5, 0, 0.5))
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SetTop(ShapeDot, NewHeight)
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End Sub
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'拖动
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Public GetHintText As [Delegate]
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Private Sub DragStart(sender As Object, e As MouseButtonEventArgs) Handles ShapeDot.MouseLeftButtonDown
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e.Handled = True '防止 ScrollViewer 失焦问题
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DragControl = Me
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AniStart({
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AaScaleTransform(ShapeDot, 2 - CType(ShapeDot.RenderTransform, ScaleTransform).ScaleX, 100,, New AniEaseOutFluent)
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}, "MySlider Scale " & Uuid)
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End Sub
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Public Sub DragDoing()
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Dim Percent As Double = MathRange((Mouse.GetPosition(PanMain).Y - 8) / (ActualHeight - 16), 0, 1)
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Dim NewValue As Integer = Percent * MaxValue
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If Not NewValue = Value Then Value = NewValue
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End Sub
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Public Sub DragStop()
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RefreshColor()
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AniStart({
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AaScaleTransform(ShapeDot, 2.3 - CType(ShapeDot.RenderTransform, ScaleTransform).ScaleX, 200,, New AniEaseOutFluent)
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}, "MySlider Scale " & Uuid)
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If Value > 0 Then
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Value = MaxValue
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Else
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FrmMain.SliderDrag_Finish()
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End If
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End Sub
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'指向动画
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Private Sub RefreshColor() Handles Me.IsEnabledChanged, Me.MouseEnter, Me.MouseLeave
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'Try
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' '判断当前颜色
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' Dim ColorName As String
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' Dim AnimationTime As Integer
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' If IsEnabled Then
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' If IsMouseOver OrElse (Not IsNothing(DragControl) AndAlso DragControl.Equals(Me)) Then
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' ColorName = "ColorBrush3"
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' AnimationTime = 100
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' Else
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' ColorName = "ColorBrush1"
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' AnimationTime = 200
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' End If
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' Else
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' ColorName = "ColorBrushGray4"
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' AnimationTime = 200
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' End If
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' '触发颜色动画
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' If IsLoaded AndAlso AniControlEnabled = 0 Then '防止默认属性变更触发动画
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' '有动画
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' AniStart({AaColor(Me, BorderBrushProperty, ColorName, AnimationTime)}, "MySlider Color " & Uuid)
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' Else
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' '无动画
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' AniStop("MySlider Color " & Uuid)
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' SetResourceReference(BorderBrushProperty, ColorName)
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' End If
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'Catch ex As Exception
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' Log(ex, "滑动条颜色改变出错")
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'End Try
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End Sub
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'按键改变
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'Public Property ValueByKey As UInteger = 1
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'Private Sub MySlider_MouseEnter() Handles Me.MouseEnter
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' Focus() '确保按键能改变值
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'End Sub
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'Private Sub MySlider_KeyDown(sender As Object, e As KeyEventArgs) Handles Me.KeyDown
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' '拒绝一边拖动一边用按键改变
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' If ReferenceEquals(Me, DragControl) Then Exit Sub
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' '改变值
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' If e.Key = Key.Left Then
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' ChangeByKey = True
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' Value -= ValueByKey
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' ChangeByKey = False
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' e.Handled = True
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' ElseIf e.Key = Key.Right Then
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' ChangeByKey = True
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' Value += ValueByKey
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' ChangeByKey = False
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' e.Handled = True
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' Else
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' Exit Sub
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' End If
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' '更新 Popup
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' If GetHintText IsNot Nothing Then
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' TextHint.Text = GetHintText.DynamicInvoke(Value)
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' Popup.IsOpen = True
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' AniStop("MySlider KeyPopup " & Uuid)
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' AniStart(AaCode(Sub() Popup.IsOpen = False, 700 * AniSpeed), "MySlider KeyPopup " & Uuid)
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' End If
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'End Sub
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End Class
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