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main.py

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+import tkinter as tk
+from tkinter import ttk, filedialog, messagebox
+import os
+import subprocess
+import threading
+
+# 拖拽支持（Windows）
+try:
+    from tkinterdnd2 import DND_FILES, TkinterDnD
+    DND_AVAILABLE = True
+except:
+    DND_AVAILABLE = False
+
+
+class PDFCompressorApp:
+    def __init__(self, root):
+        self.root = root
+        self.root.title("Snail PDF压缩工具")
+        self.root.geometry("650x450")
+
+        self.files = []
+        self.quality_map = {
+            "极限压缩（低质量）": "/screen",
+            "标准压缩（推荐）": "/ebook",
+            "高质量（打印）": "/printer"
+        }
+
+        self.create_widgets()
+
+    def create_widgets(self):
+        frame = tk.Frame(self.root)
+        frame.pack(fill="both", expand=True, padx=10, pady=10)
+
+        # 文件列表
+        self.listbox = tk.Listbox(frame, height=12)
+        self.listbox.pack(fill="both", expand=True)
+
+        # 拖拽支持
+        if DND_AVAILABLE:
+            self.listbox.drop_target_register(DND_FILES)
+            self.listbox.dnd_bind("<<Drop>>", self.drop_files)
+
+        # 按钮区
+        btn_frame = tk.Frame(frame)
+        btn_frame.pack(pady=5)
+
+        tk.Button(btn_frame, text="添加文件", command=self.add_files).pack(side="left", padx=5)
+        tk.Button(btn_frame, text="添加文件夹", command=self.add_folder).pack(side="left", padx=5)
+        tk.Button(btn_frame, text="清空", command=self.clear_files).pack(side="left", padx=5)
+
+        # 压缩质量
+        tk.Label(frame, text="压缩质量:").pack()
+        self.quality = tk.StringVar(value="标准压缩（推荐）")
+        ttk.Combobox(
+            frame,
+            textvariable=self.quality,
+            values=list(self.quality_map.keys())
+        ).pack()
+
+        # 进度条
+        self.progress = ttk.Progressbar(frame, length=600)
+        self.progress.pack(pady=10)
+
+        # 状态
+        self.status = tk.Label(frame, text="等待开始")
+        self.status.pack()
+
+        # 开始按钮
+        tk.Button(frame, text="开始压缩", bg="green", fg="white",
+                  command=self.start).pack(pady=10)
+
+    def add_files(self):
+        files = filedialog.askopenfilenames(filetypes=[("PDF Files", "*.pdf")])
+        self.add_to_list(files)
+
+    def add_folder(self):
+        folder = filedialog.askdirectory()
+        if folder:
+            pdfs = [os.path.join(folder, f) for f in os.listdir(folder) if f.lower().endswith(".pdf")]
+            self.add_to_list(pdfs)
+
+    def add_to_list(self, files):
+        for f in files:
+            if f not in self.files:
+                self.files.append(f)
+                self.listbox.insert(tk.END, f)
+
+    def drop_files(self, event):
+        files = self.root.tk.splitlist(event.data)
+        self.add_to_list(files)
+
+    def clear_files(self):
+        self.files.clear()
+        self.listbox.delete(0, tk.END)
+
+    def start(self):
+        if not self.files:
+            messagebox.showwarning("提示", "请先添加PDF文件")
+            return
+
+        threading.Thread(target=self.compress_all, daemon=True).start()
+
+    def compress_all(self):
+        gs_path = os.path.join(os.getcwd(), "bin", "gswin64c.exe")
+
+        if not os.path.exists(gs_path):
+            messagebox.showerror("错误", "未找到 bin/gswin64c.exe（请检查Ghostscript绿色版）打包后的exe文件放置SnailPDF目录下运行")
+            return
+
+        total = len(self.files)
+        self.progress["maximum"] = total
+
+        for i, file in enumerate(self.files):
+            output = file.replace(".pdf", "_compressed.pdf")
+
+            try:
+                before_size = os.path.getsize(file)
+
+                cmd = [
+                    gs_path,
+                    "-sDEVICE=pdfwrite",
+                    "-dCompatibilityLevel=1.4",
+                    f"-dPDFSETTINGS={self.quality_map[self.quality.get()]}",
+                    "-dNOPAUSE",
+                    "-dBATCH",
+                    f"-sOutputFile={output}",
+                    file
+                ]
+
+                subprocess.run(
+                    cmd,
+                    capture_output=True,
+                    text=True,
+                    creationflags=subprocess.CREATE_NO_WINDOW
+                )
+                after_size = os.path.getsize(output)
+                ratio = (1 - after_size / before_size) * 100
+
+                self.status.config(
+                    text=f"完成: {os.path.basename(file)} | 压缩率: {ratio:.1f}%"
+                )
+
+            except Exception as e:
+                self.status.config(text=f"失败: {os.path.basename(file)}")
+
+            self.progress["value"] = i + 1
+
+        messagebox.showinfo("完成", "全部压缩完成！")
+
+
+if __name__ == "__main__":
+    if DND_AVAILABLE:
+        root = TkinterDnD.Tk()
+    else:
+        root = tk.Tk()
+
+    app = PDFCompressorApp(root)
+    root.mainloop()
+
+#打包命令 .\python.exe -m PyInstaller --onefile --windowed --icon=icon.ico --name "SnailSend" .\main.py