//Create by ChimHsiung 2016
//图片按钮+自定义形状 using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Runtime.CompilerServices;
using System.Drawing.Drawing2D;namespace Chim.UI.ImageButton
{public partial class ImageButton : UserControl{private Image p1;private Image p2;private Image p3;private Cshap shap1;protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)//重载{//解决显示异常,ImageButton事件无效?this.lblTemp.Parent = this.pbImage;this.lblTemp.Width = this.pbImage.Width;this.lblTemp.Left = (int)Math.Round((double)((((double)this.pbImage.Width) / 2.0) - (((double)this.lblTemp.Width) / 2.0)));this.lblTemp.Top = (int)Math.Round((double)((((double)this.pbImage.Height) / 2.0) - (((double)this.lblTemp.Height) / 2.0)));base.OnPaint(e);System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();switch(shap1.ToString()){case "矩形":path.AddRectangle(new Rectangle(this.Location, new Size(this.Width, this.Height)));break;case "圆角矩形": //addarc两参数未明                  Rectangle rec = new Rectangle(this.Location, new Size(this.Width, this.Height));//左上角path.AddArc(rec, 185, 90);//右上角rec.X = this.Right - this.Width;path.AddArc(rec, 275, 90);//右下角rec.Y = this.Bottom - this.Height;path.AddArc(rec, 356, 90);//左下角rec.X = this.Left;path.AddArc(rec, 90, 90);path.CloseFigure();break;case "圆形":path.AddEllipse(0, 0, this.Width, this.Height);break;                case "三角形":Point[] triangleP = new Point[3];triangleP[0] = new Point((this.Left + this.Width) / 2, this.Location.Y);triangleP[1] = new Point(this.Left, this.Top + this.Height);triangleP[2] = new Point(this.Left + this.Width, this.Top + this.Height);path.AddPolygon(triangleP);break;case "菱形":Point[] triangleD = new Point[4];triangleD[0] = this.Location;triangleD[1] = new Point((this.Left + this.Width) / 2, this.Location.Y);triangleD[2] = new Point(this.Left + this.Width, this.Top + this.Height);triangleD[3] = new Point((this.Left + this.Width) / 2, this.Top + this.Height);                    path.AddPolygon(triangleD);                    break;default:path.AddRectangle(new Rectangle(this.Location, new Size(this.Width, this.Height)));break;         }this.Region = new Region(path); }protected override void OnPaintBackground(PaintEventArgs pevent){Pen pen = new Pen(this.BackColor);Graphics g = this.CreateGraphics();g.Clear(Color.Goldenrod);g.FillEllipse(Brushes.DarkKhaki, new Rectangle(0, 0, this.Width, this.Height));}protected override void OnResize(EventArgs e){OnPaint(null);OnPaintBackground(null);base.OnResize(e);}public enum Cshap{矩形 =0,圆角矩形 =1,圆形 =2,三角形 =3,菱形 =4,};public delegate void ClickEventHandler(object sender, EventArgs e);public new event ClickEventHandler Click;public ImageButton(){//base.MouseLeave += new EventHandler(this.ImageButton_MouseLeave);//base.Resize += new EventHandler(this.ImageButton_Resize);//base.Load += new EventHandler(this.ImageButton_Load);//base.MouseEnter += new EventHandler(this.ImageButton_MouseEnter);InitializeComponent();}[Category("外观")][Description("按钮形状")]//[DefaultValue("矩形")]//为何无效public Cshap ButtonShape{get{return this.shap1;}set{this.shap1 = value;//重绘形状OnPaint(null);OnPaintBackground(null);}}[Category("重要属性")][Description("按钮正常时显示的图片")]public Image ButtonImage{get{return this.pbImage.Image;}set{this.pbImage.Image = value;this.p1 = value;}}[Category("重要属性")][Description("按钮中显示的文本")]public string ButtonText{get{return this.lblTemp.Text;}set{this.lblTemp.Text = value;}}[Category("重要属性")][Description("文本显示方式")]public ContentAlignment TextAlign{get{return this.lblTemp.TextAlign;}set{this.lblTemp.TextAlign = value;}}[Category("重要属性")][Description("按钮按下时显示的图片")]public Image MouseClickImage{get{return this.p3;}set{this.p3 = value;}}[Category("重要属性")][Description("按钮点燃时显示的图片")]public Image MouseOverImage{get{return this.p2;}set{this.p2 = value;}}public void ImageButton_MouseEnter(object sender, EventArgs e){Graphics g = this.CreateGraphics();g.DrawEllipse(new Pen(Color.Red), 0, 0, this.Width, this.Height);g.Dispose();this.pbImage.Image = this.p2;}public void ImageButton_MouseLeave(object sender, EventArgs e){this.pbImage.Image = this.p1;}private void ImageButton_Resize(object sender, EventArgs e){this.lblTemp.Left = (int)Math.Round((double)((((double)this.pbImage.Width) / 2.0) - (((double)this.lblTemp.Width) / 2.0)));this.lblTemp.Top = (int)Math.Round((double)((((double)this.pbImage.Height) / 2.0) - (((double)this.lblTemp.Height) / 2.0)));}private void ImageButton_Load(object sender, EventArgs e){lblTemp_TextChanged(sender,e);//this.lblTemp.Parent = this.pbImage;//this.lblTemp.Width = this.pbImage.Width;//this.pbImage.Image = this.p1;//this.lblTemp.Left = (int)Math.Round((double)((((double)this.pbImage.Width) / 2.0) - (((double)this.lblTemp.Width) / 2.0)));//this.lblTemp.Top = (int)Math.Round((double)((((double)this.pbImage.Height) / 2.0) - (((double)this.lblTemp.Height) / 2.0)));}//Lable事件private void lblTemp_Click(object sender, EventArgs e){ClickEventHandler clickEvent = this.Click;if (clickEvent != null){clickEvent(this, e);}}private void lblTemp_MouseDown(object sender, MouseEventArgs e){OnPaintBackground(null); this.pbImage.Image = this.p3;}private void lblTemp_MouseEnter(object sender, EventArgs e){this.Cursor = Cursors.Hand;this.pbImage.Image = this.p2;}private void lblTemp_MouseHover(object sender, EventArgs e){this.pbImage.Image = this.p2;}private void lblTemp_MouseLeave(object sender, EventArgs e){this.Cursor = Cursors.Arrow;this.pbImage.Image = this.p1;}private void lblTemp_MouseUp(object sender, MouseEventArgs e){this.pbImage.Image = this.p1;}private void lblTemp_TextChanged(object sender, EventArgs e){this.lblTemp.Parent = this.pbImage;this.lblTemp.Width = this.pbImage.Width;this.lblTemp.Left = (int)Math.Round((double)((((double)this.pbImage.Width) / 2.0) - (((double)this.lblTemp.Width) / 2.0)));this.lblTemp.Top = (int)Math.Round((double)((((double)this.pbImage.Height) / 2.0) - (((double)this.lblTemp.Height) / 2.0)));}//PictureBox事件private void pbImage_BackgroundImageChanged(object sender, EventArgs e){this.pbImage.Refresh();}private void pbImage_Click(object sender, EventArgs e){ClickEventHandler clickEvent = this.Click;if (clickEvent != null){clickEvent(this, e);}}private void pbImage_MouseDown(object sender, MouseEventArgs e){this.Cursor = Cursors.Hand;this.pbImage.Image = this.p3;}private void pbImage_MouseEnter(object sender, EventArgs e){this.Cursor = Cursors.Hand;this.pbImage.Image = this.p2;}private void pbImage_MouseHover(object sender, EventArgs e){this.pbImage.Image = this.p2;}private void pbImage_MouseLeave(object sender, EventArgs e){this.Cursor = Cursors.Arrow;this.pbImage.Image = this.p1;}private void pbImage_MouseUp(object sender, MouseEventArgs e){this.pbImage.Image = this.p1;}}
}