加几个控件

Gui/UILib/ProgressRing.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Drawing;
+
+namespace CMLeonOS.Gui.UILib
+{
+    internal class ProgressRing : Control
+    {
+        public ProgressRing(Window parent, int x, int y, int width, int height) : base(parent, x, y, width, height)
+        {
+        }
+
+        private Color _background = UITheme.Surface;
+        internal Color Background
+        {
+            get { return _background; }
+            set { _background = value; Render(); }
+        }
+
+        private Color _ringColor = UITheme.Accent;
+        internal Color RingColor
+        {
+            get { return _ringColor; }
+            set { _ringColor = value; Render(); }
+        }
+
+        private Color _trackColor = UITheme.SurfaceBorder;
+        internal Color TrackColor
+        {
+            get { return _trackColor; }
+            set { _trackColor = value; Render(); }
+        }
+
+        private bool _active = true;
+        internal bool Active
+        {
+            get { return _active; }
+            set { _active = value; Render(); }
+        }
+
+        internal int Thickness { get; set; } = 3;
+
+        private int frame = 0;
+
+        internal override void Render()
+        {
+            Clear(Background);
+
+            int radius = Math.Max(6, (Math.Min(Width, Height) / 2) - 4);
+            int centerX = Width / 2;
+            int centerY = Height / 2;
+
+            for (int angle = 0; angle < 360; angle += 12)
+            {
+                DrawArcPoint(centerX, centerY, radius, angle, TrackColor);
+            }
+
+            if (Active)
+            {
+                for (int i = 0; i < 8; i++)
+                {
+                    int angle = (frame + (i * 18)) % 360;
+                    Color color = Color.FromArgb(
+                        Math.Max(60, RingColor.R - (i * 12)),
+                        Math.Max(60, RingColor.G - (i * 12)),
+                        Math.Max(60, RingColor.B - (i * 12)));
+                    DrawArcPoint(centerX, centerY, radius, angle, color);
+                }
+
+                frame = (frame + 10) % 360;
+                WM.UpdateQueue.Enqueue(this);
+            }
+
+            WM.Update(this);
+        }
+
+        private void DrawArcPoint(int centerX, int centerY, int radius, int angleDegrees, Color color)
+        {
+            double radians = angleDegrees * (Math.PI / 180d);
+            int pointX = centerX + (int)(Math.Cos(radians) * radius);
+            int pointY = centerY + (int)(Math.Sin(radians) * radius);
+
+            for (int y = -Thickness / 2; y <= Thickness / 2; y++)
+            {
+                for (int x = -Thickness / 2; x <= Thickness / 2; x++)
+                {
+                    DrawPoint(pointX + x, pointY + y, color);
+                }
+            }
+        }
+    }
+}