VB.Net Tutorial/2D Graphics/Draw string

Материал из VB Эксперт
Версия от 12:54, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Draw string with Brush and Font settings

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class GDIObjectsCreateBrushFont
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
        Dim canvas As Graphics = e.Graphics
        
        Dim brush1 As New SolidBrush(Color.DarkBlue)
        Dim font1 As New Font("Arial", 24, FontStyle.Bold Or FontStyle.Italic)
        canvas.DrawString("www.vbex.ru",font1, brush1, 120, 70)
        
        canvas = Nothing
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected 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(610, 328)
        Me.Name = "Form1"
        Me.Text = "Creating Graphics Objects (Color, Pen, Font, Brush)"
        Me.ResumeLayout(False)
    End Sub
End Class

Print string in 3D

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TextureTransform
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim g As Graphics = e.Graphics
        Dim str As String = "www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru www.vbex.ru "
        g.ScaleTransform(2, 1)
        g.RotateTransform(45.0F, System.Drawing.Drawing2D.MatrixOrder.Prepend)
        g.TranslateTransform(-20, -70)
        g.DrawString(str, New Font("Verdana", 10), New SolidBrush(Color.Blue), New RectangleF(50, 20, 200, 300))
  End Sub
  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class

Rotate and Transoform in Text painting

Imports System.Drawing.Text
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TransformRotateTextPaint
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Me.Font = New Font("Times New Roman", 20, FontStyle.Bold, GraphicsUnit.Pixel)
        e.Graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit
        DrawArrow(e.Graphics, "")
        e.Graphics.TranslateTransform(150, 50, MatrixOrder.Append)
        DrawArrow(e.Graphics, "Translate 150 horizontally and 50 vertically")
        e.Graphics.RotateTransform(45, MatrixOrder.Append)
        DrawArrow(e.Graphics, "Rotate 45 degrees")
        " Reset the transformation.
        e.Graphics.ResetTransform()
        e.Graphics.RotateTransform(45, MatrixOrder.Append)
        DrawArrow(e.Graphics, "Rotate 45 degrees after reset")
        e.Graphics.TranslateTransform(150, 50, MatrixOrder.Append)
        DrawArrow(e.Graphics, "Translate 150 horizontally and 50 vertically after reset")
    End Sub
    " Draw an arrow outline containing some text.
    Private Sub DrawArrow(ByVal gr As Graphics, ByVal txt As String)
        " Draw the text.
        Dim layout_rectangle As New RectangleF(10, 20, 600, 20)
        Dim string_format As New StringFormat
        string_format.LineAlignment = StringAlignment.Center
        string_format.Alignment = StringAlignment.Center
        gr.DrawString(txt, Me.Font, Brushes.Black, _
            layout_rectangle, string_format)
    End Sub
  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class

Text Contrast

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TextContrast
   public Shared Sub Main
        Application.Run(New TextContrastForm)
   End Sub
End class
Public Class TextContrastForm
    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()
        "
        "TextContrastForm
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.BackColor = System.Drawing.Color.White
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Name = "TextContrastForm"
        Me.Text = "TextContrastForm"
    End Sub
#End Region
    Private Sub TextContrastForm_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
        Dim g As Graphics = e.Graphics
        
        Dim i As Integer
        Dim y As Integer
        For i = 0 To 12 Step 1
            g.TextContrast = i
            Dim line As String = "Contrast = " & i.ToString()
            g.DrawString(line, Me.Font, Brushes.Black, 0, y, New StringFormat())
            y = y + 30
        Next
    End Sub
End Class

Text outline

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class StringOutLine
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
        Dim outlinePath As New Drawing2D.GraphicsPath
        Dim useFont As Font = New Font("Times New Roman", 96, FontStyle.Regular)
        e.Graphics.TextRenderingHint = Drawing.Text.TextRenderingHint.AntiAlias
        e.Graphics.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias
        outlinePath.AddString("www.vbex.ru", useFont.FontFamily, FontStyle.Regular, 96, New Point(0, 0), StringFormat.GenericTypographic)
        useFont.Dispose()
        e.Graphics.FillPath(Brushes.LightGray, outlinePath)
        e.Graphics.TranslateTransform(-5, -5)
        e.Graphics.FillPath(Brushes.White, outlinePath)
        e.Graphics.DrawPath(Pens.Black, outlinePath)
        outlinePath.Dispose()
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected 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.PictureBox1 = New System.Windows.Forms.PictureBox
        CType(Me.PictureBox1, System.ruponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        "
        "PictureBox1
        "
        Me.PictureBox1.BackColor = System.Drawing.Color.White
        Me.PictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.PictureBox1.Location = New System.Drawing.Point(8, 8)
        Me.PictureBox1.Name = "PictureBox1"
        Me.PictureBox1.Size = New System.Drawing.Size(780, 152)
        Me.PictureBox1.TabIndex = 0
        Me.PictureBox1.TabStop = False
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(800, 166)
        Me.Controls.Add(Me.PictureBox1)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.MaximizeBox = False
        Me.Name = "Form1"
        Me.Text = "Outline Text"
        CType(Me.PictureBox1, System.ruponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)
    End Sub
    Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
End Class

Text Shadow

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TextShadow
   public Shared Sub Main
        Application.Run(New ShadowFontsForm)
   End Sub
End class
Public Class ShadowFontsForm
    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()
        "
        "ShadowFontsForm
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(46, 109)
        Me.ClientSize = New System.Drawing.Size(800, 266)
        Me.Font = New System.Drawing.Font("Microsoft Sans Serif", 72.0!)
    End Sub
#End Region
    Private Function GetStringPath(ByVal s As String, ByVal dpi As Single, ByVal rect As RectangleF, ByVal font As Font, ByVal format As StringFormat) As GraphicsPath
        Dim path As GraphicsPath = New GraphicsPath()
        Dim emSize As Single = dpi * font.SizeInPoints / 72
        path.AddString(s, font.FontFamily, CInt(font.Style), emSize, rect, format)
        Return path
    End Function

    Private Sub ShadowFontsForm_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 = "www.vbex.ru"
        
        Dim size As SizeF = New SizeF(Me.ClientRectangle.Width - 4, Me.ClientRectangle.Height - 4)
        
        Dim rect As RectangleF = New RectangleF(0, 0, size.Width, size.Height)
        Dim pathShadow As GraphicsPath = GetStringPath(s, g.DpiY, New RectangleF(4, 4, size.Width, size.Height), Me.Font, StringFormat.GenericTypographic)
        Dim path As GraphicsPath = GetStringPath(s, g.DpiY, rect, Me.Font, StringFormat.GenericTypographic)
        g.FillPath(Brushes.Black, pathShadow)
        g.FillPath(Brushes.Red, path)
    End Sub
End Class

Transform Text

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Math
public class TransformedText
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim txt As String = "The quick brown fox jumps over the lazy dog."
        Dim the_font As New Font("Times New Roman", 30, FontStyle.Bold, GraphicsUnit.Pixel)
        Dim layout_rect As New RectangleF( 10, 10, 200, 200)
        Dim string_format As New StringFormat
        string_format.Alignment = StringAlignment.Center
        string_format.LineAlignment = StringAlignment.Center
        e.Graphics.TranslateTransform(-100, -100, MatrixOrder.Append)
        e.Graphics.RotateTransform(60, MatrixOrder.Append)
        e.Graphics.TranslateTransform(100,100, MatrixOrder.Append)
        e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit
        e.Graphics.DrawString(txt, the_font, Brushes.Black, layout_rect, string_format)
        e.Graphics.DrawRectangle(Pens.Black, Rectangle.Round(layout_rect))
  End Sub
  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class

Transparent string

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class AlphaBlending
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim g As Graphics = Me.CreateGraphics()
        g.Clear(Me.BackColor)
        Dim curImage As Image = Image.FromFile("yourfile.jpg")
        g.DrawImage(curImage, 0, 0, curImage.Width, curImage.Height) "
        Dim opqPen As New Pen(Color.FromArgb(255, 0, 255, 0), 10)
        Dim transPen As New Pen(Color.FromArgb(128, 0, 255, 0), 10)
        Dim totTransPen As New Pen(Color.FromArgb(40, 0, 255, 0), 10)
        g.DrawLine(opqPen, 10, 10, 200, 10)
        g.DrawLine(transPen, 10, 30, 200, 30)
        g.DrawLine(totTransPen, 10, 50, 200, 50)
        Dim semiTransBrush As New SolidBrush(Color.FromArgb(90, 255, 255, 0))
        g.DrawString("Photo " + ControlChars.Lf + "Date: 04/09/2001", New Font("Verdana", 14), semiTransBrush, New RectangleF(20, 100, 300, 100))
        " Dispose
        g.Dispose()

  End Sub
  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class

Use LinearGradientBrush to draw string

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ColorBlending
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim g As Graphics = Me.CreateGraphics()
        g.Clear(Me.BackColor)
        Dim rgBrush As New LinearGradientBrush(New RectangleF(20, 20, 100, 100), Color.Red, Color.Green, LinearGradientMode.Horizontal)
        Dim yrBrush As New LinearGradientBrush(New RectangleF(140, 20, 150, 300), Color.Yellow, Color.Red, LinearGradientMode.ForwardDiagonal)
        Dim rbBrush As New LinearGradientBrush(New RectangleF(10, 10, 50, 50), Color.Red, Color.Blue, LinearGradientMode.ForwardDiagonal)
        g.FillRectangle(rgBrush, 20, 20, 100, 100)
        g.FillEllipse(yrBrush, 140, 20, 200, 200)
        g.DrawString("Color Blending", New Font("Tahoma", 30), rbBrush, New RectangleF(100, 240, 300, 300))

        " Dispose
        g.Dispose()
  End Sub
  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class