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fix: 裁剪图像脚本New-Object不能置于.NET方法参数表(组件从未跑通的根因), 改用[Type]::new()

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yu 2026-11-03 13:58:46 +08:00
parent 9bfa4ac107
commit 38b2199d4b
1 changed files with 4 additions and 1 deletions
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5
src/main/capabilities/remaining-core.ts
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@ -179,7 +179,10 @@ register("Image_CropImg", async (_ctx, node, args) => {
const x = num(args, ["xstart"], 0), y = num(args, ["ystart"], 0), width = num(args, ["xend"], 100) - x, height = num(args, ["yend"], 100) - y;
if (width <= 0 || height <= 0) throw new RuntimeError("validation_error", `裁剪区域无效（宽 ${width} × 高 ${height}）`, { nodeId: node.id, componentId: node.componentId, recommendation: "终点坐标需要大于起点坐标（单位是图片上的像素）" });
fs.mkdirSync(path.dirname(output), { recursive: true });
await powershell(`Add-Type -AssemblyName System.Drawing;$image=[System.Drawing.Image]::FromFile(${psString(input)});$rect=New-Object System.Drawing.Rectangle(${x},${y},${width},${height});$bitmap=New-Object System.Drawing.Bitmap($rect.Width,$rect.Height);$graphics=[System.Drawing.Graphics]::FromImage($bitmap);$graphics.DrawImage($image,New-Object System.Drawing.Rectangle(0,0,$rect.Width,$rect.Height),$rect,[System.Drawing.GraphicsUnit]::Pixel);$bitmap.Save(${psString(output)});$graphics.Dispose();$bitmap.Dispose();$image.Dispose()`);
// 注意: .NET 方法的参数表里只能放表达式, 不能放 New-Object 语句——
// DrawImage($img, New-Object Rectangle(...), ...) 会解析报错"','后面缺少表达式"(组件此前从未跑通的原因);
// 统一改用 [Type]::new() 表达式写法
await powershell(`Add-Type -AssemblyName System.Drawing;$image=[System.Drawing.Image]::FromFile(${psString(input)});$rect=[System.Drawing.Rectangle]::new(${x},${y},${width},${height});$bitmap=[System.Drawing.Bitmap]::new($rect.Width,$rect.Height);$graphics=[System.Drawing.Graphics]::FromImage($bitmap);$graphics.DrawImage($image,[System.Drawing.Rectangle]::new(0,0,$rect.Width,$rect.Height),$rect,[System.Drawing.GraphicsUnit]::Pixel);$bitmap.Save(${psString(output)});$graphics.Dispose();$bitmap.Dispose();$image.Dispose()`);
return output;
});
register("Image_RelativePosition", async (_ctx, node, args) => {