GUI桌面环境

Gui/Apps/Paint/Paint.cs

@@ -0,0 +1,88 @@
+using Cosmos.System;
+using CMLeonOS;
+using CMLeonOS.Gui.UILib;
+using System.Drawing;
+
+namespace CMLeonOS.Gui.Apps.Paint
+{
+    internal class Paint : Process
+    {
+        internal Paint() : base("Paint", ProcessType.Application)
+        {
+        }
+
+        AppWindow window;
+
+        Window canvas;
+
+        ToolBox toolBox;
+
+        ColourPicker colourPicker;
+
+        WindowManager wm = ProcessManager.GetProcess<WindowManager>();
+
+        private bool down = false;
+
+        internal Color SelectedColor { get; set; } = Color.Black;
+
+        internal bool IsInBounds(int x, int y)
+        {
+            if (x >= canvas.Width || y >= canvas.Height) return false;
+            if (x < 0 || y < 0) return false;
+
+            return true;
+        }
+
+        private void CanvasDown(int x, int y)
+        {
+            down = true;
+        }
+
+        public override void Start()
+        {
+            base.Start();
+            window = new AppWindow(this, 256, 256, 768, 448);
+            window.Title = "Paint";
+            window.Icon = AppManager.GetAppMetadata("Paint").Icon;
+            window.Closing = TryStop;
+            window.Clear(Color.FromArgb(73, 73, 73));
+            wm.AddWindow(window);
+
+            int canvasWidth = 384;
+            int canvasHeight = 256;
+            canvas = new Window(this, (window.Width / 2) - (canvasWidth / 2), (window.Height / 2) - (canvasHeight / 2), canvasWidth, canvasHeight);
+            canvas.RelativeTo = window;
+            canvas.OnDown = CanvasDown;
+            canvas.Clear(Color.White);
+            wm.AddWindow(canvas);
+
+            toolBox = new ToolBox(this, 0, 0, 128, window.Height);
+            toolBox.RelativeTo = window;
+            colourPicker = new ColourPicker(this, window.Width - 128, 0, 128, window.Height);
+            colourPicker.RelativeTo = window;
+
+            wm.Update(window);
+        }
+
+        public override void Run()
+        {
+            if (down)
+            {
+                if (MouseManager.MouseState == MouseState.None)
+                {
+                    down = false;
+                }
+
+                toolBox.SelectedTool.Run(
+                   this,
+                   canvas,
+                   MouseManager.MouseState,
+                   (int)(MouseManager.X - canvas.ScreenX),
+                   (int)(MouseManager.Y - canvas.ScreenY)
+                );
+
+                wm.Update(canvas);
+            }
+        }
+    }
+}