C#自定义控件二XP按钮

C#自定义控件二XP按钮

效果图：

通过继承 Button按钮，重写OnPaint事件重新绘制。

 

为了增强效果，可以构造函数中this.Cursor = Cursors.Hand; 将鼠标形状改成手势。

 

第一步：重写 OnPaint事件

private bool mouseover = false;

 

        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)

        {

            Color c5 = Color.FromA#ffffff;

            Color c2 = Color.FromA#c0c0c0;

            if (mouseover)

            {

                c5 = Color.FromA#f5f5f5;

                c2 = Color.FromA#b4afbe;

            }

 

            Brush b = new System.Drawing.Drawing2D.LinearGradientBrush(ClientRectangle, c5, c2, LinearGradientMode.Vertical);

            int offsetwidth = this.Width / 50;

            Point[] points = new Point[8];

            points[0].X = offsetwidth;

            points[0].Y = 0;

            points[1].X = this.Width - offsetwidth;

            points[1].Y = 0;

            points[2].X = this.Width;

            points[2].Y = offsetwidth;

            points[3].X = this.Width;

            points[3].Y = this.Height - offsetwidth;

            points[4].X = this.Width - offsetwidth;

            points[4].Y = this.Height;

            points[5].X = offsetwidth;

            points[5].Y = this.Height;

            points[6].X = 0;

            points[6].Y = this.Height - offsetwidth;

            points[7].X = 0;

            points[7].Y = offsetwidth;

            e.Graphics.FillPolygon(b, points, FillMode.Winding);

 

 

            int offsetwidth1 = (this.Width - 5) / 50 + 2;

            Point[] points1 = new Point[8];

           points1[0].X = offsetwidth1;

            points1[0].Y = 2;

            points1[1].X = this.Width - offsetwidth1;

            points1[1].Y = 2;

            points1[2].X = this.Width - 1;

            points1[2].Y = offsetwidth1;

            points1[3].X = this.Width - 1;

            points1[3].Y = this.Height - offsetwidth1;

            points1[4].X = this.Width - offsetwidth1;

            points1[4].Y = this.Height - 1;

            points1[5].X = 1;

            points1[5].Y = this.Height - 1;

            points1[6].X = 2;

            points1[6].Y = this.Height - offsetwidth1;

            points1[7].X = 2;

            points1[7].Y = offsetwidth1;

            Pen p = new Pen(Color.Orange, 2);

            Pen p1 = new Pen(Color.Wheat, 2);

            e.Graphics.DrawLine(p1, points1[0], points1[1]);

 

            e.Graphics.DrawLine(p, points1[1], points1[2]);

            e.Graphics.DrawLine(p, points1[2], points1[3]);

            e.Graphics.DrawLine(p, points1[3], points1[4]);

            e.Graphics.DrawLine(p, points1[4], points1[5]);

            e.Graphics.DrawLine(p, points1[5], points1[6]);

            e.Graphics.DrawLine(p1, points1[6], points1[7]);

            e.Graphics.DrawLine(p1, points1[7], points1[0]);

            e.Graphics.DrawPolygon(new Pen(Color.DarkBlue, 2), points);

 

            StringFormat drawFormat = new StringFormat();

            drawFormat.FormatFlags = StringFormatFlags.DisplayFormatControl;

            drawFormat.LineAlignment = StringAlignment.Center;

            drawFormat.Alignment = System.Drawing.StringAlignment.Center;

 

            e.Graphics.DrawString(this.Text, this.Font, new LinearGradientBrush(this.ClientRectangle, Color.Black, Color.Black, LinearGradientMode.Vertical), this.ClientRectangle, drawFormat);

            b.Dispose();

 

        }      

 

第二步：重写鼠标移入事件

protected override void OnMouseEnter(EventArgs e)

        {

            mouseover = true;

            this.Invalidate(false);

            base.OnMouseEnter(e);

        }

 

第三步：重写鼠标移出事件

protected override void OnMouseLeave(EventArgs e)

        {

            mouseover = false;

            this.Invalidate(false);

            base.OnMouseLeave(e);

        }

 

提示：可以将Color c5 和Color c2 改成自己想要的颜色，也可写成属性让用户选择，会产生不一样的效果哦！试试看吧！

 

贴出全部代码：

//控件名：myXPButton

//作者：刘典武

//时间：2011-06-02

 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Drawing;

using System.Data;

using System.Text;

using System.Windows.Forms;

using System.Drawing.Drawing2D;

 

namespace myControl

{   

    public partial class myXPButton : Button

    {

        public myXPButton()

        {

            this.Cursor = Cursors.Hand;

        }

 

        private bool mouseover = false;

 

        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)

        {

            Color c5 = Color.FromA#ffffff;//按钮表面上部颜色

            Color c2 = Color.FromA#c0c0c0;//按钮表面下部颜色

            if (mouseover)//鼠标移入的话重新改变

            {

                c5 = Color.FromA#f5f5f5;

                c2 = Color.FromA#b4afbe;

            }

 

            Brush b = new System.Drawing.Drawing2D.LinearGradientBrush(ClientRectangle, c5, c2, LinearGradientMode.Vertical);

            int offsetwidth = this.Width / 50;

            Point[] points = new Point[8];

            points[0].X = offsetwidth;

            points[0].Y = 0;

            points[1].X = this.Width - offsetwidth;

            points[1].Y = 0;

            points[2].X = this.Width;

            points[2].Y = offsetwidth;

            points[3].X = this.Width;

            points[3].Y = this.Height - offsetwidth;

            points[4].X = this.Width - offsetwidth;

            points[4].Y = this.Height;

            points[5].X = offsetwidth;

            points[5].Y = this.Height;

            points[6].X = 0;

            points[6].Y = this.Height - offsetwidth;

            points[7].X = 0;

            points[7].Y = offsetwidth;

            e.Graphics.FillPolygon(b, points, FillMode.Winding);

 

            int offsetwidth1 = (this.Width - 5) / 50 + 2;

            Point[] points1 = new Point[8];

            points1[0].X = offsetwidth1;

            points1[0].Y = 2;

            points1[1].X = this.Width - offsetwidth1;

            points1[1].Y = 2;

            points1[2].X = this.Width - 1;

            points1[2].Y = offsetwidth1;

            points1[3].X = this.Width - 1;

            points1[3].Y = this.Height - offsetwidth1;

            points1[4].X = this.Width - offsetwidth1;

            points1[4].Y = this.Height - 1;

            points1[5].X = 1;

            points1[5].Y = this.Height - 1;

            points1[6].X = 2;

            points1[6].Y = this.Height - offsetwidth1;

            points1[7].X = 2;

            points1[7].Y = offsetwidth1;

            Pen p = new Pen(Color.Orange, 2);

            Pen p1 = new Pen(Color.Wheat, 2);

            e.Graphics.DrawLine(p1, points1[0], points1[1]);

 

            e.Graphics.DrawLine(p, points1[1], points1[2]);

            e.Graphics.DrawLine(p, points1[2], points1[3]);

            e.Graphics.DrawLine(p, points1[3], points1[4]);

            e.Graphics.DrawLine(p, points1[4], points1[5]);

            e.Graphics.DrawLine(p, points1[5], points1[6]);

            e.Graphics.DrawLine(p1, points1[6], points1[7]);

            e.Graphics.DrawLine(p1, points1[7], points1[0]);

            e.Graphics.DrawPolygon(new Pen(Color.DarkBlue, 2), points);

 

            StringFormat drawFormat = new StringFormat();

            drawFormat.FormatFlags = StringFormatFlags.DisplayFormatControl;

            drawFormat.LineAlignment = StringAlignment.Center;

            drawFormat.Alignment = System.Drawing.StringAlignment.Center;

 

            e.Graphics.DrawString(this.Text, this.Font, new LinearGradientBrush(this.ClientRectangle, Color.Black, Color.Black, LinearGradientMode.Vertical), this.ClientRectangle, drawFormat);

            b.Dispose();

        }      

        protected override void OnMouseEnter(EventArgs e)

        {

            mouseover = true;

            this.Invalidate(false);

            base.OnMouseEnter(e);

        }

        protected override void OnMouseLeave(EventArgs e)

        {

            mouseover = false;

            this.Invalidate(false);

            base.OnMouseLeave(e);

        }              

    }

}