首次提交：本地项目同步到Gitea

LibShapes/Core/State/State.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Windows.Forms;
+
+namespace Io.Github.Kerwinxu.LibShapes.Core.State
+{
+    public abstract class State
+    {
+        /// <summary>
+        /// 画布
+        /// </summary>
+        public UserControlCanvas canvas { get; set; }
+
+        public PointF startPoint { get; set; }
+
+
+        public State(UserControlCanvas canvas, PointF start_pointF)
+        {
+            this.canvas = canvas;
+            this.startPoint = start_pointF;
+        }
+
+        public State(UserControlCanvas canvas)
+        {
+            this.canvas = canvas;
+        }
+
+        public virtual void LeftMouseDown(PointF pointF) { }
+        public virtual void LeftMouseMove(PointF pointF) { }
+        public virtual void LeftMouseUp(PointF pointF) {}
+
+        public virtual void RightMouseClick(PointF pointF) { }
+
+        /// <summary>
+        /// 将画布的坐标转成虚拟的坐标
+        /// </summary>
+        /// <param name="pointF"></param>
+        /// <returns></returns>
+        protected PointF cantosPointToVirtualPoint(PointF pointF)
+        {
+            return this.canvas.shapes.pointTransform.CanvasToVirtualPoint(pointF);
+        }
+
+    }
+}