Dario Sassi
84 lines
3.8 KiB
VB.net
84 lines
3.8 KiB
VB.net
Imports EgtWPFLib5.EgtFloating
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Public Class ProbingParameterExpanderV
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Private m_RightTrayV As RightTrayV
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Private EgtFloatingPanel As EgtFloatingPanel
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Private m_bFirst As Boolean = True
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Private Sub OperationExpanderView_Loaded(sender As Object, e As System.Windows.RoutedEventArgs) Handles Me.Loaded
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If m_bFirst Then
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m_RightTrayV = FindAncestor(Of RightTrayV)(Me)
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EgtFloatingPanel = FindAncestor(Of EgtFloatingPanel)(Me)
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AddHandler m_RightTrayV.SizeChanged, AddressOf RightTrayV_SizeChanged
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PanelHeight = EgtFloatingPanel.DesiredSize.Height
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Me.AutomaticCloseExpanderStackPanelHeight = AutomaticCloseExpanderStackPanel.ActualHeight
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m_bFirst = False
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End If
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CalculateOperationParametersStackPanelMaxHeight()
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End Sub
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Dim m_bSizeChanging As Boolean = False
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Private Sub RightTrayV_SizeChanged(sender As Object, e As System.Windows.SizeChangedEventArgs)
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If m_bSizeChanging Then Return
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m_bSizeChanging = True
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CalculateOperationParametersStackPanelMaxHeight()
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m_bSizeChanging = False
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End Sub
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Dim PanelHeight As Double = 0
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Dim AutomaticCloseExpanderStackPanelHeight As Double = 0
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' ricalcola spazio utilizzabile quando modificata dimensione finestra e quindi dimensione della tray
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Private Sub CalculateOperationParametersStackPanelMaxHeight()
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Dim AutomaticCloseExpanderStackPanelHeight As Double = 0
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Dim OpenedExpanderList As New List(Of Boolean)
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For Index = 0 To AutomaticCloseExpanderStackPanel.Children.Count - 1
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If TypeOf AutomaticCloseExpanderStackPanel.Children(Index) Is Expander Then
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Dim IndexedExpander As Expander = DirectCast(AutomaticCloseExpanderStackPanel.Children(Index), Expander)
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If IndexedExpander.IsExpanded Then
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OpenedExpanderList.Add(True)
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IndexedExpander.IsExpanded = False
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Dim CurrExpanderContent As FrameworkElement = DirectCast(IndexedExpander.Content, FrameworkElement)
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CurrExpanderContent.Measure(New Size(Double.PositiveInfinity, Double.PositiveInfinity))
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AutomaticCloseExpanderStackPanelHeight -= CurrExpanderContent.DesiredSize.Height
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' Sottraggo anche i padding
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AutomaticCloseExpanderStackPanelHeight -= (IndexedExpander.Padding.Top + IndexedExpander.Padding.Bottom)
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Else
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OpenedExpanderList.Add(False)
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End If
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Else
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OpenedExpanderList.Add(False)
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End If
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Next
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Dim RemainingHeight As Double = m_RightTrayV.ActualHeight - PanelHeight
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AutomaticCloseExpanderStackPanel.MaxHeight = Me.AutomaticCloseExpanderStackPanelHeight + RemainingHeight
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For Index = AutomaticCloseExpanderStackPanel.Children.Count - 1 To 0 Step -1
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If TypeOf AutomaticCloseExpanderStackPanel.Children(Index) Is Expander Then
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Dim IndexedExpander As Expander = DirectCast(AutomaticCloseExpanderStackPanel.Children(Index), Expander)
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If OpenedExpanderList(Index) Then
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IndexedExpander.IsExpanded = True
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End If
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End If
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Next
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End Sub
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' Funzione che permette di trovare il primo contenitore di tipo T di un elemento grafico dependencyObject
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Public Function FindAncestor(Of T As Class)(dependencyObject As DependencyObject) As T
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Dim target As DependencyObject = dependencyObject
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Do
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target = LogicalTreeHelper.GetParent(target)
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Loop While target IsNot Nothing AndAlso Not (TypeOf target Is T)
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If IsNothing(target) Then
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target = dependencyObject
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Do
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target = VisualTreeHelper.GetParent(target)
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Loop While target IsNot Nothing AndAlso Not (TypeOf target Is T)
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End If
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Return TryCast(target, T)
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End Function
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End Class
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