first commit

2026-09-07 08:07:08 +08:00
commit e703fb2752
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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.Xml.Serialization;
+
+namespace JinYuan.ControlLib
+{
+    public partial class CheckBoxExt : CheckBox
+    {
+        public CheckBoxExt()
+        {
+            InitializeComponent();
+
+            _format.LineAlignment=StringAlignment.Center;
+            _format.Alignment=StringAlignment.Center;
+
+
+            //设置控件样式，去除缓冲
+            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
+            this.SetStyle(ControlStyles.DoubleBuffer, true);
+            this.SetStyle(ControlStyles.ResizeRedraw, true);
+            this.SetStyle(ControlStyles.Selectable, true);
+            this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
+        }
+
+        private StringFormat _format = new StringFormat();
+        
+
+
+        private int defultCheckButtonWidth=20;
+        [Browsable(true)]//是否可见
+        [Category("自定义属性")] //类别
+        [Description("设置或显示标题名称")]
+        public int DefultCheckButtonWidth
+        {
+            get { return defultCheckButtonWidth; }
+            set { defultCheckButtonWidth= value; }
+        }
+
+        private Color checkColor=Color.FromArgb(3,25,66);
+        [Browsable(true)]//是否可见
+        [Category("自定义属性")] //类别
+        [Description("设置或显示选中颜色")]
+        public Color CheckColor
+        {
+            get { return checkColor; }
+            set 
+            { 
+                checkColor = value;
+                this.Invalidate();
+            }
+        }
+
+        private Color checkBackColor = Color.White;
+        [Browsable(true)]//是否可见
+        [Category("自定义属性")] //类别
+        [Description("设置或显示选中框背景颜色")]
+        public Color CheckBackColor
+        {
+            get { return checkBackColor; }
+            set
+            {
+                checkBackColor = value;
+                this.Invalidate();
+            }
+        }
+
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            base.OnPaint(e);
+            base.OnPaintBackground(e);
+
+            Graphics g = e.Graphics;    
+            g.SmoothingMode=System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
+            g.TextRenderingHint=System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
+
+            Rectangle checkRec;
+            Rectangle textRec;
+
+            CalculatorRec(out checkRec,out textRec);
+
+            SolidBrush solidBrush = new SolidBrush(CheckBackColor);
+            g.FillRectangle(solidBrush, checkRec);
+
+            Pen pen=new Pen(Color.LightGray);
+            g.DrawRectangle(pen, checkRec);
+
+            if (this.CheckState==CheckState.Checked)
+            {
+                //画勾选
+                DrawCheckFlag(g, checkRec,checkColor);
+            }
+
+            //绘制文本
+            g.DrawString(this.Text, this.Font, new SolidBrush(this.ForeColor), textRec, this._format);
+        }
+
+
+        /// <summary>
+        /// 计算矩形
+        /// </summary>
+        /// <param name="checkRec"></param>
+        /// <param name="textRec"></param>
+        private void CalculatorRec(out Rectangle checkRec, out Rectangle textRec)
+        {
+            checkRec = new Rectangle(3,(this.Height - defultCheckButtonWidth) / 2, defultCheckButtonWidth,
+                defultCheckButtonWidth);
+
+            textRec = new Rectangle(checkRec.Right+3,0,Width-checkRec.Right-6,this.Height);
+        }
+
+
+        /// <summary>
+        /// 画勾选
+        /// </summary>
+        /// <param name="g"></param>
+        /// <param name="rectangle"></param>
+        /// <param name="color"></param>
+        private void DrawCheckFlag(Graphics g,Rectangle rectangle,Color color) 
+        {
+            PointF[] pointFs = new PointF[3];
+
+            pointFs[0] = new PointF(rectangle.X+rectangle.Width/4.5f,rectangle.Y+rectangle.Height/2.5f);
+            pointFs[1] = new PointF(rectangle.X + rectangle.Width / 2.5F, rectangle.Bottom - rectangle.Height / 3.0f);
+            pointFs[2] = new PointF(rectangle.Right-rectangle.Width/4.0f, rectangle.Y+rectangle.Height/4.5f);
+
+            Pen pen = new Pen(color,2.0f);
+            g.DrawLines(pen, pointFs);
+
+        }
+    }
+}