首次提交：本地项目同步到Gitea

2026-01-24 08:45:54 +08:00
commit 4a6b23db69
256 changed files with 25311 additions and 0 deletions
--- a/LibShapes/Core/Shape/ShapeArc.cs
+++ b/LibShapes/Core/Shape/ShapeArc.cs
@@ -0,0 +1,78 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Linq;
+using System.Text;
+
+namespace Io.Github.Kerwinxu.LibShapes.Core.Shape
+{
+    /// <summary>
+    /// 椭圆弧
+    /// </summary>
+    public class ShapeArc : ShapeRectangle
+    {
+        public ShapeArc()
+        {
+            // 设置默认的角度
+            StartAngle = 0;
+            SweepAngle = 90;
+        }
+
+        [DescriptionAttribute("弧线的起始角度"), DisplayName("弧线的起始角度"), CategoryAttribute("外观")]
+        public float StartAngle { get; set; }
+
+
+        [DescriptionAttribute("startAngle 和弧线末尾之间的角度"), DisplayName("夹角"), CategoryAttribute("外观")]
+        public float SweepAngle { get; set; }
+
+        public override ShapeEle DeepClone()
+        {
+            // 这里用json的方式
+            string json = JsonConvert.SerializeObject(this);
+            return JsonConvert.DeserializeObject<ShapeArc>(json);
+            //throw new NotImplementedException();
+        }
+
+        public override System.Drawing.RectangleF GetBounds(Matrix matrix)
+        {
+            // 这个实际上是矩形的
+            GraphicsPath path = base.GetGraphicsPathWithAngle();
+            // 这里加上旋转
+            Matrix matrix1 = new Matrix();
+            // 这里按照中心点旋转,
+            var rect = path.GetBounds();
+            var centerPoint = new PointF() { X = rect.X + rect.Width / 2, Y = rect.Y + rect.Height / 2 };
+            matrix1.RotateAt(Angle, centerPoint);
+            Matrix matrix2 = matrix.Clone();
+            matrix2.Multiply(matrix1);
+            // 应用这个转换
+            path.Transform(matrix2);
+            return path.GetBounds();
+            //return base.GetBounds(matrix);
+        }
+
+        public override GraphicsPath GetGraphicsPathWithAngle()
+        {
+            GraphicsPath path = new GraphicsPath();
+            var rect = new System.Drawing.RectangleF()
+            {
+                X = getX(),
+                Y = getY(),
+                Width = getWidth(),
+                Height = getHeight(),
+            };
+
+            var rect2 = correctRectangle(rect);
+            path.AddArc(
+                   rect2,
+                   StartAngle,
+                   SweepAngle);
+  
+            return path;
+            //return base.GetGraphicsPathWithAngle();
+        }
+    }
+}