VB.Net/2D/Pen Join

Материал из VB Эксперт
Версия от 15:41, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Pen Join Demo

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

   Shared Sub Main()
       Dim myform As Form = New JoinsForm()
   End Sub

End Class Public Class JoinsForm

   Inherits System.Windows.Forms.Form
  1. Region " Windows Form Designer generated code "
   Public Sub New()
       "This call is required by the Windows Form Designer.
       "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
           End If
       End If
   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 = "JoinsForm"
   End Sub
  1. End Region
   Private Sub JoinsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
       Dim g As Graphics = e.Graphics
       Dim joinNames As String() = System.Enum.GetNames(GetType(LineJoin))
       Dim x As Integer = 0
       Dim y As Integer = 0
       Dim width As Integer = Me.ClientRectangle.Width / 2
       Dim height As Integer = Me.ClientRectangle.Height / ((joinNames.Length) / 2)
       Dim blackBrush As Brush = Brushes.Black
       Dim blackPen As Pen = Pens.Black
       Dim whitePen As Pen = Pens.White
       Dim joinName As String
       For Each joinName In joinNames
           Dim pen As Pen = New Pen(Color.Black, 12)
           pen.LineJoin = CType(System.Enum.Parse(GetType(LineJoin), joinName), LineJoin)
           g.DrawRectangle(pen, New Rectangle(x + 20, y + 20, width - 40, height - 40))
           g.DrawRectangle(whitePen, New Rectangle(x + 20, y + 20, width - 40, height - 40))
           Dim format As StringFormat = New StringFormat()
           format.Alignment = StringAlignment.Center
           format.LineAlignment = StringAlignment.Center
           g.DrawString(joinName, Me.Font, blackBrush, New RectangleF(x, y, width, height), format)
           x = x + width
           If x > Me.ClientRectangle.Width - width Then
               y = y + height
               x = 0
           End If
   End Sub

End Class