VB.Net/2D/Image Animator

Материал из VB Эксперт
Версия от 15:41, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Image Animator 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 AnimationForm()
       Application.Run(myform)
   End Sub

End Class Public Class AnimationForm

   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"
       "
       "AnimationForm
       "
       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 = "AnimationForm"
       Me.Text = "AnimationForm"
       Me.ResumeLayout(False)
   End Sub
  1. End Region
   Dim gif As Bitmap = New Bitmap("nav.bmp")
   Private Sub AnimationForm_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load
       Me.SetClientSizeCore(gif.Width, gif.Height + statusBar1.Height)
       If ImageAnimator.CanAnimate(gif) Then
           ImageAnimator.Animate(gif, New EventHandler(AddressOf gif_FrameChanged))
       End If
       statusBar1.Text = gif.GetFrameCount(FrameDimension.Time) & " frames"
   End Sub
   Private Sub gif_FrameChanged(ByVal sender As Object, ByVal e As EventArgs)
       Me.Invalidate()
   End Sub
   Private Sub AnimationForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
       ImageAnimator.UpdateFrames(gif)
       Dim g As Graphics = e.Graphics
       Dim rect As Rectangle = Me.ClientRectangle
       rect.Height = rect.Height - statusBar1.Height
       g.DrawImage(gif, rect)
   End Sub

End Class

      </source>


Rounded Rect Path 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 Form1()
       Application.Run(myform)
   End Sub

End Class Public Class Form1

   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
       Me.SetStyle(ControlStyles.ResizeRedraw, True)
       Me.SetStyle(ControlStyles.DoubleBuffer, True)
       Me.SetStyle(ControlStyles.AllPaintingInWmPaint, True)
   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 = "Form1"
   End Sub
  1. End Region
   Private Function GetRoundedRectPath(ByVal rect As Rectangle, ByVal radius As Integer) As GraphicsPath
       Dim diameter As Integer = 2 * radius
       Dim arcRect As Rectangle = New Rectangle(rect.Location, New Size(diameter, diameter))
       Dim path As GraphicsPath = New GraphicsPath()
       path.AddArc(arcRect, 180, 90)
       arcRect.X = rect.Right - diameter
       path.AddArc(arcRect, 270, 90)
       arcRect.Y = rect.Bottom - diameter
       path.AddArc(arcRect, 0, 90)
       arcRect.X = rect.Left
       path.AddArc(arcRect, 90, 90)
       path.CloseFigure()
       Return path
   End Function
   Private Sub Form1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
       Dim g As Graphics = e.Graphics
       Dim width As Integer = Me.ClientRectangle.Width
       Dim height As Integer = Me.ClientRectangle.Height
       Dim rect As Rectangle = New Rectangle(10, 10, width - 20, height - 20)
       Dim format As StringFormat = New StringFormat()
       format.Alignment = StringAlignment.Center
       format.LineAlignment = StringAlignment.Center
       Dim path As GraphicsPath = GetRoundedRectPath(rect, width / 10)
       g.FillPath(Brushes.Yellow, path)
       g.DrawPath(Pens.Black, path)
   End Sub

End Class

      </source>