Added UI Toolkit Progress

Src/Unity/Scripts/UX/Library/DashBoardProgress.cs

@@ -0,0 +1,101 @@
+using System.Linq;
+using UnityEngine;
+using UnityEngine.UIElements;
+
+namespace BITKit.UX
+{
+
+    // An element that displays progress inside a partially filled circle
+    public class DashBoardProgress : VisualElement
+    {
+        public new class UxmlTraits : VisualElement.UxmlTraits
+        {
+            // The progress property is exposed to UXML.
+            private readonly UxmlFloatAttributeDescription m_ProgressAttribute = new UxmlFloatAttributeDescription()
+            {
+                name = "progress"
+            };
+
+            // Use the Init method to assign the value of the progress UXML attribute to the C# progress property.
+            public override void Init(VisualElement ve, IUxmlAttributes bag, CreationContext cc)
+            {
+                base.Init(ve, bag, cc);
+
+                ((DashBoardProgress)ve).progress = m_ProgressAttribute.GetValueFromBag(bag, cc);
+            }
+        }
+
+        // Define a factory class to expose this control to UXML.
+        public new class UxmlFactory : UxmlFactory<DashBoardProgress, UxmlTraits> { }
+
+        // These are USS class names for the control overall and the label.
+        public static readonly string ussClassName = "radial-progress";
+        public static readonly string ussLabelClassName = "radial-progress__label";
+
+        private Color m_ProgressColor;
+
+        // This is the label that displays the percentage.
+        private Label m_Label;
+
+        // This is the number that the Label displays as a percentage.
+        private float m_Progress;
+
+        // A value between 0 and 100
+        public float progress
+        {
+            // The progress property is exposed in C#.
+            get => m_Progress;
+            set
+            {
+                // Whenever the progress property changes, MarkDirtyRepaint() is named. This causes a call to the
+                // generateVisualContents callback.
+                m_Progress = value;
+                MarkDirtyRepaint();
+            }
+        }
+
+        // This default constructor is RadialProgress's only constructor.
+        public DashBoardProgress()
+        {
+            // Add the USS class name for the overall control.
+            AddToClassList(ussClassName);
+
+            // Register a callback to generate the visual content of the control.
+            generateVisualContent += GenerateVisualContent;
+
+            progress = 0.5f;
+        }
+
+        private void GenerateVisualContent(MeshGenerationContext context)
+        {
+            var width = contentRect.width;
+            var height = contentRect.height;
+
+            var painter = context.painter2D;
+            painter.lineWidth = resolvedStyle.unityTextOutlineWidth;
+            painter.lineCap = LineCap.Butt;
+
+            var startAngle = -220f;
+
+            //startAngle = Mathf.Lerp(-90f, 480f, nextProgress);
+
+           //var endAngle = 360.0f * (progress) + startAngle - 30;
+           var endAngle = 40f;
+
+           endAngle = Mathf.Lerp(startAngle, endAngle, progress);
+           //计算progress
+           
+           // Draw the track
+           painter.strokeColor = resolvedStyle.unityTextOutlineColor;
+           painter.BeginPath();
+           painter.Arc(new Vector2(width * 0.5f, height * 0.5f), width*0.5f - painter.lineWidth/2f, startAngle, 40f);
+           painter.Stroke();
+
+            // Draw the progress Out
+            painter.strokeColor = resolvedStyle.color;
+            painter.BeginPath();
+            painter.Arc(new Vector2(width * 0.5f, height * 0.5f), width*0.5f - painter.lineWidth/2f, startAngle, endAngle);
+            painter.Stroke();
+        }
+    }
+}