VB.Net/GUI/Ruler

Материал из VB Эксперт
Версия от 15:42, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
(разн.) ← Предыдущая | Текущая версия (разн.) | Следующая → (разн.)
Перейти к: навигация, поиск

Simple Ruler

<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 PageUnitsForm()
       Application.Run(myform)
   End Sub

End Class

Public Class PageUnitsForm

   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.
   Friend WithEvents statusBar1 As System.Windows.Forms.StatusBar
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.statusBar1 = New System.Windows.Forms.StatusBar()
       Me.SuspendLayout()
       "
       "statusBar1
       "
       Me.statusBar1.Location = New System.Drawing.Point(0, 244)
       Me.statusBar1.Name = "statusBar1"
       Me.statusBar1.Size = New System.Drawing.Size(292, 22)
       Me.statusBar1.TabIndex = 1
       Me.statusBar1.Text = "statusBar1"
       "
       "PageUnitsForm
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(292, 266)
       Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.statusBar1})
       Me.Name = "PageUnitsForm"
       Me.Text = "PageUnitsForm"
       Me.ResumeLayout(False)
   End Sub
  1. End Region
   Sub PaintInInches(ByVal g As Graphics)
       g.PageUnit = GraphicsUnit.Inch
       g.PageScale = 1
       Dim rulerFont As Font = New Font("MS Sans Serif", 8.25F)
       Dim blackPen As Pen = New Pen(Color.Red, 0)
       Dim rulerFontHeight As Single = rulerFont.GetHeight(g)
       Dim rulerRect As RectangleF = New RectangleF(0, 0, 6.5F, rulerFontHeight * 1.5F)
       Dim i As Single
       For i = 1 To 6
           Dim rect As RectangleF = New RectangleF(i - rulerFontHeight, 0, rulerFontHeight * 2, rulerFontHeight)
           Dim format As StringFormat = New StringFormat()
           format.Alignment = StringAlignment.Center
           g.DrawString(i.ToString(), rulerFont, Brushes.Black, rect, format)
       Next
       For i = 0.5 To 6.5 Step 1
           g.DrawLine(blackPen, i, 0, i, rulerFontHeight / 2)
       Next
   End Sub
   Private Sub PageUnitsForm_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
       PaintInInches(e.Graphics)
   End Sub
   
   Private Function PixelsToInches(ByVal pixels As Single) As Single
       Dim g As Graphics = Me.CreateGraphics()
       Return pixels / g.DpiY
   End Function
   

End Class

      </source>