в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

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2010-05-26T12:41:38Z

1 версия

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==Custom Line Cap Construction==

<source lang="vbnet">
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
Shared Sub Main()
Dim form1 As Form1 = new Form1
Application.Run(form1)
End Sub

End Class

Public Class Form1
Inherits System.Windows.Forms.Form
#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()
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Name = "Form1"
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.Text = "Form1"
End Sub
#End Region
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim G As Graphics = e.Graphics
Dim P As Pen = New Pen(Color.Blue, 1)
Dim Pts() As Point = {New Point(10, 10), _
New Point(15, 10), _
New Point(20, 15), _
New Point(20, 20), _
New Point(15, 25), _
New Point(10, 10)}
Dim Path As GraphicsPath = New GraphicsPath()
Path.AddLines(Pts)
G.SmoothingMode = SmoothingMode.AntiAlias
Dim MyCustomLineCap As CustomLineCap = New CustomLineCap(Nothing, Path)
MyCustomLineCap.BaseInset = 0
MyCustomLineCap.WidthScale = 1
MyCustomLineCap.StrokeJoin = LineJoin.Miter
P.CustomEndCap = MyCustomLineCap
P.CustomStartCap = MyCustomLineCap
G.DrawLine(P, 50, 150, 200, 150)
MyCustomLineCap.Dispose()
Path.Dispose()
P.Dispose()
End Sub
End Class

</source>

==Custom Line Caps==

<source lang="vbnet">
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms

Public Class MainClass
Shared Sub Main()
Dim form1 As Form = New Form1()
Application.Run(form1)
End Sub " ValidationError
End Class

Public Class Form1
Private Sub Form1_Paint(ByVal sender As Object, _
ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
" Make a GraphicsPath that draws an X.
Dim pts() As Point = { _
New Point(-20, -20), _
New Point(0, 0), _
New Point(-20, 20), _
New Point(0, 0), _
New Point(20, 20), _
New Point(0, 0), _
New Point(20, -20) _
}
Dim cap_path As New GraphicsPath
cap_path.AddLines(pts)
" Make the CustomLineCap.
Dim x_cap As New CustomLineCap(Nothing, cap_path)
" Draw some lines with x_cap.
Dim the_pen As New Pen(Color.Black, 1)
the_pen.CustomStartCap = x_cap
the_pen.CustomEndCap = x_cap
e.Graphics.DrawLine(the_pen, 50, 100, 200, 10)

End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
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()
Me.SuspendLayout()
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Name = "Form1"
Me.Text = "TransformArrow"
Me.ResumeLayout(False)
End Sub
End Class

</source>

==LineCap Demo==

<source lang="vbnet">
Imports System
Imports System.Windows.Forms
Imports System.Drawing.Text
Imports System.Drawing
Public Class MainClass

Shared Sub Main(ByVal args As String())
Dim myform As Form = New Form1()
Application.Run(myform)
End Sub
End Class

Public Class Form1
Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
Dim x As Integer = 5
Dim y As Integer = 10
Dim the_pen As New Pen(Color.Black, 20)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.AnchorMask)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.ArrowAnchor)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.DiamondAnchor)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.Flat)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.NoAnchor)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.Round)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.RoundAnchor)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.Square)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.SquareAnchor)
DrawSample(e.Graphics, x, y, Drawing2D.LineCap.Triangle)
End Sub
Private Sub DrawSample(ByVal gr As Graphics, ByRef x As Integer, ByRef y As Integer, ByVal style As Drawing2D.LineCap)
Dim the_pen As New Pen(Color.Black, 20)
the_pen.EndCap = style
gr.DrawString(style.ToString, Me.Font, Brushes.Black, x, y - 5)
gr.DrawLine(the_pen, x + 100, y, x + 150, y)
y += 50
If y > Me.ClientRectangle.Height Then
x += 200
y = 80
End If
End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
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()
Me.SuspendLayout()
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(564, 209)
Me.Name = "Form1"
Me.Text = "Title"
Me.ResumeLayout(False)
End Sub
End Class

</source>

==LineCaps 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 LineCapsForm()
Application.Run(myform)
End Sub
End Class
Public Class LineCapsForm
Inherits System.Windows.Forms.Form
#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 = "LineCapsForm"
End Sub
#End Region

Private Sub LineCapsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
Dim g As Graphics = e.Graphics
Dim capNames As String() = System.Enum.GetNames(GetType(LineCap))
Array.Sort(capNames)
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 / ((capNames.Length) / 2)
Dim blackBrush As Brush = Brushes.Black
Dim whitePen As Pen = Pens.White
Dim capName As String
For Each capName In capNames
Dim pen As Pen = New Pen(Color.Black, 12)
pen.EndCap = CType(System.Enum.Parse(GetType(LineCap), capName), LineCap)
If pen.EndCap <> LineCap.AnchorMask Then
If pen.EndCap = LineCap.Custom Then
pen.CustomEndCap = New AdjustableArrowCap(3, 3, False)
End If
g.DrawLine(pen, x, CInt(y + height * 2 / 3), CInt(x + width * 2 / 3), CInt(y + height * 2 / 3))
g.DrawLine(whitePen, x, CInt(y + height * 2 / 3), CInt(x + width * 2 / 3), CInt(y + height * 2 / 3))
g.DrawString(capName, Me.Font, blackBrush, x, y)
x = x + width
If x > Me.ClientRectangle.Width - width Then
y = y + height
x = 0
End If
End If
Next
End Sub
End Class

</source>

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VB.Net/2D/LineCaps - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия