Fix position list default height to fit 5 rows.

Co-authored-by: Cursor <cursoragent@cursor.com>

desktop/gold_order_app.py

@@ -52,6 +52,8 @@ LOT_MID = 0.05
 LOT_LOW = 0.01
 MAX_SIDE_LOTS = 0.50
 MAX_OPEN_POSITIONS = 5  # 同时最多持仓笔数，满则买卖置灰
+POS_ROW_HEIGHT = 46  # 持仓列表单行约高（含内边距）
+POS_LIST_HEIGHT = POS_ROW_HEIGHT * MAX_OPEN_POSITIONS  # 默认可视 5 条持仓高度
 DAY_LOSS_LOCK = 0.05   # 当日合计亏损达余额 5% 禁止开仓
 DAY_PROFIT_LOCK = 0.10  # 当日合计盈利达余额 10% 禁止开仓
 # 币圈习惯：绿涨红跌
@@ -939,8 +941,14 @@ class OrderApp(tk.Tk):
             ("浮盈", 9),
             ("操作", 10),
         ]
-        pos_wrap = tk.Frame(root, bg="#2b2b2b", highlightthickness=0)
+        # 持仓区固定为 5 行可视高度，超出可滚动
-        pos_wrap.pack(fill=tk.BOTH, expand=True)
+        pos_wrap = tk.Frame(
+            root,
+            bg="#2b2b2b",
+            highlightthickness=1,
+            highlightbackground="#2a2a38",
+        )
+        pos_wrap.pack(fill=tk.X, expand=False, pady=(0, 0))
 
         self.pos_head = tk.Frame(pos_wrap, bg="#333333")
         self.pos_head.pack(fill=tk.X)
@@ -955,9 +963,12 @@ class OrderApp(tk.Tk):
                 anchor="center",
             ).grid(row=0, column=i, sticky="nsew", padx=2, pady=6)
 
-        body = tk.Frame(pos_wrap, bg="#2b2b2b")
+        body = tk.Frame(pos_wrap, bg="#2b2b2b", height=POS_LIST_HEIGHT)
-        body.pack(fill=tk.BOTH, expand=True)
+        body.pack(fill=tk.X, expand=False)
-        self.pos_canvas = tk.Canvas(body, bg="#2b2b2b", highlightthickness=0, bd=0)
+        body.pack_propagate(False)
+        self.pos_canvas = tk.Canvas(
+            body, bg="#2b2b2b", highlightthickness=0, bd=0, height=POS_LIST_HEIGHT
+        )
         scroll = ttk.Scrollbar(body, orient=tk.VERTICAL, command=self.pos_canvas.yview)
         self.pos_inner = tk.Frame(self.pos_canvas, bg="#2b2b2b")
         self.pos_inner.bind(
@@ -965,7 +976,7 @@ class OrderApp(tk.Tk):
             lambda e: self.pos_canvas.configure(scrollregion=self.pos_canvas.bbox("all")),
         )
         self._pos_window = self.pos_canvas.create_window((0, 0), window=self.pos_inner, anchor="nw")
-        self.pos_canvas.configure(yscrollcommand=scroll.set)
+        self.pos_canvas.configure(yscrollcommand=scroll.set, height=POS_LIST_HEIGHT)
         self.pos_canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
         scroll.pack(side=tk.RIGHT, fill=tk.Y)
         self.pos_canvas.bind("<Configure>", self._on_pos_canvas_configure)