VB.Net/2D/String Trim Paint

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String Trim Demo

<source lang="vbnet"> Imports System Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Configuration Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Text Imports System.Globalization Imports System.Text Imports System.Collections Public Class MainClass

   Shared Sub Main()
       Dim myform As Form = New TrimmingForm()
       Application.Run(myform)
   End Sub

End Class

Public Class TrimmingForm

   Inherits System.Windows.Forms.Form
  1. Region " Windows Form Designer generated code "
   Public Sub New()
       MyBase.New()
       "This call is required by the Windows Form Designer.
       InitializeComponent()
       "Add any initialization after the InitializeComponent() call
   End Sub
   "Form overrides dispose to clean up the component list.
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing Then
           If Not (components Is Nothing) Then
               components.Dispose()
           End If
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       components = New System.ruponentModel.Container()
       Me.Text = "TrimmingForm"
   End Sub
  1. End Region
   Private Sub TrimmingForm_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
       Dim g As Graphics = e.Graphics
       Dim s As String = "s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s"
       Dim file As String = "file file file file file file file file file file file file file file file file file file file file file file file file file file file"
       Dim trimmings As StringTrimming() = New StringTrimming() {StringTrimming.None, _
                                    StringTrimming.Character, _
                                    StringTrimming.EllipsisCharacter, _
                                    StringTrimming.Word, _
                                    StringTrimming.EllipsisWord, _
                                    StringTrimming.EllipsisPath}
       Dim y As Single = 0
       Dim format As StringFormat = New StringFormat()
       format.FormatFlags = StringFormatFlags.LineLimit
       Dim size As SizeF = g.MeasureString(StringTrimming.EllipsisCharacter.ToString(), Me.Font)
       format.SetTabStops(0, New Single() {size.Width + 10, 0})
       Dim trimming As StringTrimming
       For Each trimming In trimmings
           format.Trimming = trimming
           Dim line As String = trimming.ToString() & ":" & vbTab & s
           If trimming = StringTrimming.EllipsisPath Then
               line = trimming.ToString() & ":" & vbTab & file
           End If
           Dim rect As RectangleF = New RectangleF(0, y, Me.ClientRectangle.Width, Me.Font.GetHeight(g) * 1.5)
           g.DrawString(line, Me.Font, Brushes.Black, rect, format)
           y = y + Me.Font.GetHeight(g)
       Next
   End Sub

End Class

      </source>