I have a listview filled with SRT subtitle. I'am trying to change listview color based on subtitle errors. Everything is working fine, but color won't change when subtitles is overlapping. I take end-time of one subtitle and start-time of next subtitle. Based on difference, it decide is there overlapping or not. Calculations are OK but backcolor and forecolor won't change. It does change backcolor for current item but I need to change backcolor for next listview item.
'EXAMPLE #######################################
For i as integer = 0 to listview1.items.count -1
ListView1.Items(i).UseItemStyleForSubItems = False
'this is working #######
ListView1.Items.Item(i).SubItems(1).BackColor = ColorTranslator.FromHtml("#F0A6A7")
'but this is NOT working ( THIS IS WHAT I NEED) ####################
ListView1.Items.Item(i).SubItems(i + 1).BackColor = ColorTranslator.FromHtml("#F0A6A7")
Next i
'########################################################
Public Function Color_Errors(ByVal SubtitleListView As ListView)
For i = 0 To SubtitleListView.Items.Count - 2
SubtitleListView.Items(i).UseItemStyleForSubItems = False
SubtitleListView.Items(i + 1).UseItemStyleForSubItems = False
SubtitleListView.Items.Item(i).SubItems(1).ResetStyle()
SubtitleListView.Items.Item(i).SubItems(2).ResetStyle()
SubtitleListView.Items.Item(i).SubItems(3).ResetStyle()
SubtitleListView.Items.Item(i).SubItems(4).ResetStyle()
SubtitleListView.Items.Item(i).SubItems(5).ResetStyle()
Dim Text As String = SubtitleListView.Items.Item(i + 1).SubItems(5).Text
Dim TextLength As Integer = Get_Longest_Line_Length(Text)
Dim NumberOfLines As Integer = Split(Text, "|").Length
Dim Duration As Double = Convert_Time_to_Milliseconds(SubtitleListView.Items.Item(i).SubItems(4).Text)
Dim Pause As Double = Convert_Time_to_Milliseconds(SubtitleListView.Items.Item(i).SubItems(1).Text)
Dim _Start As Double = Convert_Time_to_Milliseconds(SubtitleListView.Items.Item(i).SubItems(2).Text)
Dim _End As Double = Convert_Time_to_Milliseconds(SubtitleListView.Items.Item(i).SubItems(3).Text)
Dim _NextStart As Double
If i < (SubtitleListView.Items.Count - 1) Then
_NextStart = Convert_TimeSpan_to_Milliseconds(SubtitleListView.Items.Item(i + 1).SubItems(2).Text)
End If
'TOO LONG LINES
If TextLength > MaxLength Then
SubtitleListView.Items.Item(i).SubItems(5).BackColor = ColorTranslator.FromHtml("#F0A6A7")
SubtitleListView.Items.Item(i).SubItems(5).ForeColor = Color.Black
End If
'TOO LONG DURATION
If Duration > 6000 Then
SubtitleListView.Items.Item(i).SubItems(4).BackColor = ColorTranslator.FromHtml("#F5CBD9")
SubtitleListView.Items.Item(i).SubItems(4).ForeColor = ColorTranslator.FromHtml("#6F0021")
SubtitleListView.Items.Item(i).SubItems(3).BackColor = ColorTranslator.FromHtml("#F5CBD9")
SubtitleListView.Items.Item(i).SubItems(3).ForeColor = ColorTranslator.FromHtml("#6F0021")
'SHORTER THAN 2 SECONDS
ElseIf Duration < 2000 AndAlso Duration >= 700 Then
SubtitleListView.Items.Item(i).SubItems(4).BackColor = Color.Red
SubtitleListView.Items.Item(i).SubItems(4).ForeColor = Color.White
'TOO SHORT DURATION
ElseIf Duration < 700 Then
SubtitleListView.Items.Item(i).SubItems(3).BackColor = ColorTranslator.FromHtml("#FFF0E1")
SubtitleListView.Items.Item(i).SubItems(3).ForeColor = ColorTranslator.FromHtml("#A45200")
SubtitleListView.Items.Item(i).SubItems(4).BackColor = ColorTranslator.FromHtml("#FFF0E1")
SubtitleListView.Items.Item(i).SubItems(4).ForeColor = ColorTranslator.FromHtml("#A45200")
End If
''TOO SHORT PAUSE
If Pause < 200 Then
SubtitleListView.Items.Item(i).SubItems(1).BackColor = ColorTranslator.FromHtml("#ACC9E6")
SubtitleListView.Items.Item(i).SubItems(1).ForeColor = Color.Black
SubtitleListView.Items.Item(i).SubItems(2).BackColor = ColorTranslator.FromHtml("#ACC9E6")
SubtitleListView.Items.Item(i).SubItems(2).ForeColor = Color.Black
End If
If NumberOfLines > 2 Then
SubtitleListView.Items.Item(i).SubItems(5).ForeColor = ColorTranslator.FromHtml("#0000FF")
End If
'ERROR PART #################################################
If i < (SubtitleListView.Items.Count - 1) Then
If _End > _NextStart Then
SubtitleListView.Items.Item(i + 1).SubItems(1).BackColor = ColorTranslator.FromHtml("#BB0025")
SubtitleListView.Items.Item(i + 1).SubItems(1).ForeColor = Color.White
SubtitleListView.Items.Item(i).SubItems(2).BackColor = ColorTranslator.FromHtml("#BB0025")
SubtitleListView.Items.Item(i).SubItems(2).ForeColor = Color.White
End If
End If
'############################################################
Next i
Return Nothing
End Function
Public Function Convert_Time_to_Milliseconds(ByVal Time As String)
If Time.Contains(":") = True Then
Dim VremePrviDeo() As String = Split(Time, ":")
If VremePrviDeo.Length = 3 Then
Dim Sati As Integer = VremePrviDeo(0) * 60 * 60 * 1000
Dim Minuti As Integer = VremePrviDeo(1) * 60 * 1000
Dim VremeDrugiDeo() As String = Split(VremePrviDeo(2), ",")
Dim Sekunde As Integer = VremeDrugiDeo(0) * 1000
Dim Milisekunde As Integer = VremeDrugiDeo(1)
Dim Miliseconds As Double = Sati + Minuti + Sekunde + Milisekunde
Return Miliseconds.ToString
ElseIf VremePrviDeo.Length = 2 Then
Dim Minuti As Integer = VremePrviDeo(0) * 60 * 1000
Dim VremeDrugiDeo() As String = Split(VremePrviDeo(2), ",")
Dim Sekunde As Integer = VremeDrugiDeo(0) * 1000
Dim Milisekunde As Integer = VremeDrugiDeo(1)
Dim Miliseconds As Double = Minuti + Sekunde + Milisekunde
Return Miliseconds.ToString
End If
Else
Dim VremePrviDeo() As String = Split(Time, ",")
Dim Sekunde As Integer = VremePrviDeo(0) * 1000
Dim Milisekunde As Integer = VremePrviDeo(1)
Dim Miliseconds As Double = Sekunde + Milisekunde
Return Miliseconds.ToString
End If
Return Nothing
End Function
Public Function Get_Longest_Line_Length(ByVal Text As String)
Dim Duzina As Integer = 0
For Each line As String In Split(Text, "|")
If line.Length > Duzina Then
Duzina = line.Length
End If
Next
Return Duzina
End Function
Public Function Convert_TimeSpan_to_Milliseconds(ByVal Time As String)
'Try
Dim Parsed() As String = Parse_String_to_TimeSpan(Time)
Dim Sat As Double = TimeSpan.FromHours(Parsed(0)).TotalMilliseconds
Dim Minut As Double = TimeSpan.FromMinutes(Parsed(1)).TotalMilliseconds
Dim Sekunda As Double = TimeSpan.FromSeconds(Parsed(2)).TotalMilliseconds
Dim Milisekunda As Double = TimeSpan.FromMilliseconds(Parsed(3)).TotalMilliseconds
Dim TotalTime As Double = Sat + Minut + Sekunda + Milisekunda
Return TotalTime
'Catch ex As Exception
'End Try
'Return Nothing
End Function