chore: import upstream snapshot with attribution

2026-07-13 12:26:32 +08:00
commit a4dc407056
177 changed files with 11414 additions and 0 deletions
@@ -0,0 +1,103 @@
+// Copyright 2025 Takuto Nakamura
+//
+//    Licensed under the Apache License, Version 2.0 (the "License");
+//    you may not use this file except in compliance with the License.
+//    You may obtain a copy of the License at
+//
+//        http://www.apache.org/licenses/LICENSE-2.0
+//
+//    Unless required by applicable law or agreed to in writing, software
+//    distributed under the License is distributed on an "AS IS" BASIS,
+//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//    See the License for the specific language governing permissions and
+//    limitations under the License.
+
+using System.Drawing.Imaging;
+
+namespace RunCat365
+{
+    internal readonly ref struct BitmapLock
+    {
+        private readonly Bitmap bitmap;
+        internal BitmapData Data { get; }
+
+        internal BitmapLock(Bitmap bitmap, ImageLockMode mode)
+        {
+            this.bitmap = bitmap;
+            Data = bitmap.LockBits(
+                new Rectangle(0, 0, bitmap.Width, bitmap.Height),
+                mode,
+                PixelFormat.Format32bppArgb
+            );
+        }
+
+        internal void Dispose()
+        {
+            bitmap.UnlockBits(Data);
+        }
+    }
+
+    internal static class BitmapExtension
+    {
+        internal static Bitmap Recolor(this Bitmap bitmap, Color color)
+        {
+            var newBitmap = new Bitmap(bitmap.Width, bitmap.Height, PixelFormat.Format32bppArgb);
+
+            using var srcLock = new BitmapLock(bitmap, ImageLockMode.ReadOnly);
+            using var dstLock = new BitmapLock(newBitmap, ImageLockMode.WriteOnly);
+
+            unsafe
+            {
+                byte* srcPtr = (byte*)srcLock.Data.Scan0;
+                byte* dstPtr = (byte*)dstLock.Data.Scan0;
+
+                for (int y = 0; y < bitmap.Height; y++)
+                {
+                    byte* srcRow = srcPtr + (y * srcLock.Data.Stride);
+                    byte* dstRow = dstPtr + (y * dstLock.Data.Stride);
+
+                    for (int x = 0; x < bitmap.Width; x++)
+                    {
+                        byte* srcPixel = srcRow + (x * 4);
+                        byte* dstPixel = dstRow + (x * 4);
+
+                        dstPixel[0] = color.B;
+                        dstPixel[1] = color.G;
+                        dstPixel[2] = color.R;
+                        dstPixel[3] = srcPixel[3];
+                    }
+                }
+            }
+
+            return newBitmap;
+        }
+
+        internal static Icon ToIcon(this Bitmap bitmap)
+        {
+            using var pngStream = new MemoryStream();
+            bitmap.Save(pngStream, ImageFormat.Png);
+            var pngData = pngStream.ToArray();
+
+            using var icoStream = new MemoryStream();
+            using var bw = new BinaryWriter(icoStream);
+
+            bw.Write((short)0);
+            bw.Write((short)1);
+            bw.Write((short)1);
+
+            bw.Write((byte)(bitmap.Width >= 256 ? 0 : bitmap.Width));
+            bw.Write((byte)(bitmap.Height >= 256 ? 0 : bitmap.Height));
+            bw.Write((byte)0);
+            bw.Write((byte)0);
+            bw.Write((short)1);
+            bw.Write((short)32);
+            bw.Write(pngData.Length);
+            bw.Write(22);
+
+            bw.Write(pngData);
+
+            icoStream.Position = 0;
+            return new Icon(icoStream);
+        }
+    }
+}