初始化上传

2025-08-26 08:37:44 +08:00
commit 31d81b91b6
448 changed files with 80981 additions and 0 deletions
--- a/常用工具集/ViewModels/03图片相关/图片转ICOViewModel.cs
+++ b/常用工具集/ViewModels/03图片相关/图片转ICOViewModel.cs
@@ -0,0 +1,118 @@
+using System;
+using 常用工具集.Base;
+using Avalonia.Media.Imaging;
+using SkiaSharp;
+using Ursa.Controls;
+using Avalonia.Platform.Storage;
+using System.Linq;
+using System.IO;
+using ImageMagick;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace 常用工具集.ViewModel._03图片相关
+{
+    public class 图片转ICOViewModel : ViewModelBase
+    {
+        public string ImagePath { get; set; }
+
+        public Bitmap ImageSource { get; set; }
+
+        public DelegateCommand SelectImageCmd { get; set; }
+
+        public DelegateCommand ExportCmd { get; set; }
+
+        public 图片转ICOViewModel()
+        {
+            SelectImageCmd = new DelegateCommand(SelectImageCmdFunc);
+            ExportCmd = new DelegateCommand(ExportCmdFunc);
+        }
+
+        private async void SelectImageCmdFunc(object obj)
+        {
+
+            var sp = GlobalValues.StorageProvider;
+            if (sp is null) return;
+            FilePickerOpenOptions options = new FilePickerOpenOptions();
+            options.Title = "选择图片";
+            options.AllowMultiple = false;
+            options.FileTypeFilter = [FilePickerFileTypes.ImageAll];
+            var result = await sp.OpenFilePickerAsync(options);
+            if (result == null || result.Count == 0) return;
+            ImagePath = result.FirstOrDefault()?.Path.LocalPath;
+            ImageSource = new Bitmap(ImagePath);
+        }
+
+        private async void ExportCmdFunc(object obj)
+        {
+            int size = Convert.ToInt32(obj);
+            SKBitmap sbitmap = SKBitmap.Decode(ImagePath);
+            SKBitmap bitmap = ResizeImage(sbitmap, size, size);
+            //Icon icon = ConvertToIcon(bitmap);
+            //IconDir icon = new IconDir();
+            //icon.AddImage(bitmap, bitmap.Width, bitmap.Height);
+
+
+            var sp = GlobalValues.StorageProvider;
+            if (sp is null) return;
+            var result = await sp.OpenFolderPickerAsync(new FolderPickerOpenOptions()
+            {
+                Title = "请选择要生成的目录",
+                AllowMultiple = false,
+            });
+            if (result == null || result.Count == 0)
+            {
+                await MessageBox.ShowAsync("文件夹路径不能为空");
+                return;
+            }
+            string filePath = result.FirstOrDefault()?.Path.LocalPath;
+            if (!filePath.EndsWith("/"))
+            {
+                filePath += "/";
+            }
+            string fileName = "favicon_" + size + "_" + DateTime.Now.ToString("yyyyMMddHHmmss");
+            byte[] bytes = null;
+            using (MemoryStream stream = new MemoryStream())
+            {
+                SKData data = bitmap.Encode(SKEncodedImageFormat.Png, 100);
+                data.SaveTo(stream);
+                bytes = stream.ToArray();
+            }
+            using (MemoryStream stream = new MemoryStream(bytes))
+            {
+                using (MagickImage image = new MagickImage(stream))
+                {
+                    image.Format = MagickFormat.Ico;
+                    image.Write(filePath + fileName + ".ico");
+                }
+            }
+            await MessageBox.ShowAsync("生成成功");
+            //icon.Dispose();
+            bitmap.Dispose();
+            sbitmap.Dispose();
+        }
+
+
+        /// <summary>
+        /// 图片缩放
+        /// </summary>
+        /// <param name="bmp"></param>
+        /// <param name="newW"></param>
+        /// <param name="newH"></param>
+        /// <returns></returns>
+        public static SKBitmap ResizeImage(SKBitmap bmp, int newW, int newH)
+        {
+            try
+            {
+                SKBitmap b = new SKBitmap(newW, newH, SKColorType.Argb4444, SKAlphaType.Opaque);
+                SKCanvas g = new SKCanvas(b);
+                g.DrawBitmap(bmp, new SKRect(0, 0, newW, newH));
+                g.Dispose();
+                return b;
+            }
+            catch
+            {
+                return null;
+            }
+        }
+    }
+}