纯代码绘制漂亮特效动画按钮

Imports System.ComponentModel <DefaultEvent("Click")> _ Public Class DSButton Private _ButtonColor As Color = Color.White Private SF As New System.Drawing.StringFormat Private _Text As String <DefaultValue(True)> Public Property ButtonColor As Color Get Return _ButtonColor End Get Set(ByVal value As Color) _ButtonColor = value MakeRoundedRect(RoundRectValue, Me, Color.FromArgb(255, ButtonColor.R / 255 * 50, ButtonColor.G / 255 * 50, ButtonColor.B / 255 * 50)) End Set End Property Public Property RoundRectValue As Integer = 10 Private nIndex As Integer = 0 Private IsMouseEnter As Boolean = False Public Property IsShowAnimate As Boolean = False Public Property ButtonText As String Get Return _Text End Get Set(ByVal value As String) _Text = value MakeRoundedRect(RoundRectValue, Me, Color.FromArgb(255, ButtonColor.R / 255 * 50, ButtonColor.G / 255 * 50, ButtonColor.B / 255 * 50)) End Set End Property Private _TextColor As Color = Color.White Public Property TextColor As Color Get Return _TextColor End Get Set(ByVal value As Color) _TextColor = value MakeRoundedRect(RoundRectValue, Me, Color.FromArgb(255, ButtonColor.R / 255 * 50, ButtonColor.G / 255 * 50, ButtonColor.B / 255 * 50)) End Set End Property Private Sub DSButton_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load SetStyle(ControlStyles.UserPaint, True) SetStyle(ControlStyles.AllPaintingInWmPaint, True) SetStyle(ControlStyles.ResizeRedraw, True) SetStyle(ControlStyles.Selectable, True) SF.LineAlignment = StringAlignment.Center SF.Alignment = StringAlignment.Center MakeRoundedRect(RoundRectValue, Me, Color.FromArgb(255, ButtonColor.R / 255 * 50, ButtonColor.G / 255 * 50, ButtonColor.B / 255 * 50)) End Sub Private Sub MakeRoundedRect(ByVal Rounded As Integer, ByVal Ct As Control, ByVal ButtonColor As Color) If Ct.BackgroundImage IsNot Nothing Then Ct.BackgroundImage.Dispose() Ct.BackgroundImage = New Bitmap(Ct.Width, Ct.Height) Dim WW, HH As Integer WW = Ct.Width - 1 HH = Ct.Height - 1 Using G As Graphics = Graphics.FromImage(Ct.BackgroundImage) G.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias G.TextRenderingHint = Drawing.Text.TextRenderingHint.ClearTypeGridFit Using Gp As New Drawing2D.GraphicsPath Gp.AddArc(New Rectangle(0, 0, Rounded, Rounded), 180, 90) Gp.AddArc(New Rectangle(WW - Rounded, 0, Rounded, Rounded), -90, 90) Gp.AddArc(New Rectangle(WW - Rounded, HH - Rounded, Rounded, Rounded), 0, 90) Gp.AddArc(New Rectangle(0, HH - Rounded, Rounded, Rounded), 90, 90) Gp.AddLine(New Point(0, HH - Rounded), New Point(0, Rounded / 2)) Using Lg As New Drawing2D.LinearGradientBrush(New Point(0, 0), New Point(0, HH), ControlPaint.Dark(ButtonColor, 0.5), ButtonColor) G.FillPath(Lg, Gp) G.DrawPath(Pens.Black, Gp) End Using End Using WW = WW - 3 HH = HH - 3 Using Gp As New Drawing2D.GraphicsPath Gp.AddArc(New Rectangle(3, 3, Rounded, Rounded), 180, 90) Gp.AddArc(New Rectangle(WW - Rounded, 3, Rounded, Rounded), -90, 90) Gp.AddArc(New Rectangle(WW - Rounded, HH / 2 - Rounded - 1, Rounded, Rounded), 0, 90) Gp.AddArc(New Rectangle(3, HH / 2 - Rounded - 1, Rounded, Rounded), 90, 90) Using Lg As New Drawing2D.LinearGradientBrush(New Point(0, 0), New Point(0, HH / 2), Color.FromArgb(220, 255, 255, 255), Color.FromArgb(50, 255, 255, 255)) G.FillPath(Lg, Gp) End Using End Using Using Gp As New Drawing2D.GraphicsPath Gp.AddEllipse(New Rectangle(3, HH / 2 + 10, WW, HH / 2)) Using Lg As New Drawing2D.PathGradientBrush(Gp) Lg.CenterColor = Color.FromArgb(150, 255, 255, 255) Lg.SurroundColors = New Color() {Color.Transparent} Gp.FillMode = Drawing2D.FillMode.Winding G.FillPath(Lg, Gp) End Using End Using Try If _Text.Length <> 0 Then G.DrawString(_Text, Me.Font, New SolidBrush(TextColor), New Rectangle(0, 0, Me.Width, Me.Height), SF) Catch End Try End Using End Sub Private Sub DSButton_MouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseClick End Sub Private Sub DSButton_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseDown If e.Button = MouseButtons.Left Then MakeRoundedRect(RoundRectValue, Me, Color.Black) End If End Sub Private Sub DSButton_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.MouseEnter If DesignMode = False Then IsMouseEnter = True Timer1.Enabled = True End If End Sub Private Sub DSButton_MouseLeave(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.MouseLeave If DesignMode = False Then IsMouseEnter = False Timer1.Enabled = True End If End Sub Private Sub DSButton_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseUp MakeRoundedRect(RoundRectValue, Me, _ButtonColor) End Sub Private Sub DSButton_SizeChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.SizeChanged If Me.IsHandleCreated Then MakeRoundedRect(RoundRectValue, Me, ButtonColor) End If End Sub Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick Select Case IsMouseEnter Case True If IsShowAnimate = True Then nIndex = IIf(nIndex + 30 >= 225, 255, nIndex + 30) If nIndex >= 255 Then Timer1.Enabled = False Else nIndex = 255 Timer1.Enabled = False End If Case False nIndex = IIf(nIndex - 20 <= 50, 50, nIndex - 20) If nIndex <= 50 Then Timer1.Enabled = False End Select Try MakeRoundedRect(RoundRectValue, Me, Color.FromArgb(255, ButtonColor.R / 255 * nIndex, ButtonColor.G / 255 * nIndex, ButtonColor.B / 255 * nIndex)) Catch End Try End Sub End Class