优化程序

ui/group.py

@@ -486,6 +486,13 @@ class GroupWidget(QWidget):
             self._add_btn.click() if e.button() == Qt.MouseButton.LeftButton else None
         )
 
+        # 🖥️ 变成桌面文件框按钮（放在加号左边）
+        self._dock_btn = QPushButton()
+        self._dock_btn.setFixedSize(22, 22)
+        self._dock_btn.setToolTip("变成桌面文件框")
+        self._dock_btn.setStyleSheet("border:none; background:transparent;")
+        self._dock_btn.clicked.connect(self._toggle_dock_box)
+
         self._more_btn = QPushButton()
         self._more_btn.setFixedSize(22, 22)
         self._more_btn.setStyleSheet("border:none; background:transparent;")
@@ -496,6 +503,7 @@ class GroupWidget(QWidget):
         h_layout.addWidget(self.title_label)
         h_layout.addStretch()
         h_layout.addWidget(self.path_label)
+        h_layout.addWidget(self._dock_btn)
         h_layout.addWidget(self._add_btn)
         h_layout.addWidget(self._more_btn)
 
@@ -511,10 +519,65 @@ class GroupWidget(QWidget):
         n = item_count_for_group(self.group_data["id"])
         self.title_label.setText(f"{self.group_data['name']} ({n})")
 
+    def _has_docked_box(self) -> bool:
+        """检查本分组是否已有关联的桌面文件框。"""
+        conn = database.get_conn()
+        row = conn.execute("SELECT id FROM file_boxes WHERE group_id=?",
+                           (self.group_data["id"],)).fetchone()
+        conn.close()
+        return row is not None
+
+    def _toggle_dock_box(self):
+        """点击 🖥️ 按钮：创建或恢复/聚焦已关联的桌面文件框。"""
+        from db import database as db_mod
+        from ui.box import FileBox
+
+        gid = self.group_data["id"]
+        box_id = db_mod.create_file_box_from_group(gid)
+        if box_id is None:
+            # 已存在 → 找出来 show + raise
+            conn = db_mod.get_conn()
+            row = conn.execute("SELECT id FROM file_boxes WHERE group_id=?", (gid,)).fetchone()
+            conn.close()
+            if row:
+                box_id = row["id"]
+
+        # 拿到 PanelWindow 引用
+        main = self.window() if hasattr(self, "window") else None
+        from ui.dock import PanelWindow
+        if isinstance(main, PanelWindow):
+            main._load_file_boxes()
+        else:
+            # 直接构造一个 FileBox 并 show
+            conn = db_mod.get_conn()
+            box_row = conn.execute("SELECT * FROM file_boxes WHERE id=?", (box_id,)).fetchone()
+            conn.close()
+            if box_row:
+                box_data = dict(box_row)
+                # 如果 FileBox._panel_ref 还没设，尝试找一个
+                if FileBox._panel_ref is None:
+                    # 扫描 QApplication topLevelWidgets 找 PanelWindow
+                    from PyQt6.QtWidgets import QApplication
+                    for w in QApplication.topLevelWidgets():
+                        if isinstance(w, PanelWindow):
+                            FileBox._panel_ref = w; break
+                box = FileBox(box_data)
+                box.show()
+
+        self._apply_theme()  # 刷新按钮状态色
+
     def _apply_theme(self):
         t = theme.current()
         ic = "#cccccc" if theme.name() == "dark" else "#555555"
 
+        # 已关联文件框 → 用蓝色高亮按钮
+        if self._has_docked_box():
+            dock_color = "#4a9eff"
+            self._dock_btn.setToolTip("已在桌面文件框（点击聚焦）")
+        else:
+            dock_color = ic
+            self._dock_btn.setToolTip("变成桌面文件框")
+
         self.header.setStyleSheet(f"""
             QWidget {{ background:{t['header_bg']}; border-radius:5px; }}
             QWidget:hover {{ background:{t['header_hover']}; }}
@@ -526,6 +589,8 @@ class GroupWidget(QWidget):
         arrow = "fa5s.chevron-down" if not self.collapsed else "fa5s.chevron-right"
         self.toggle_icon.setPixmap(qta.icon(arrow, color=ic).pixmap(14, 14))
 
+        self._dock_btn.setIcon(qta.icon("fa5s.desktop", color=dock_color))
+        self._dock_btn.setIconSize(QSize(11, 11))
         self._add_btn.setIcon(qta.icon("fa5s.plus", color=ic))
         self._add_btn.setIconSize(QSize(11, 11))
         self._more_btn.setIcon(qta.icon("fa5s.ellipsis-h", color=ic))
@@ -573,6 +638,7 @@ class GroupWidget(QWidget):
             QMenu::item:selected {{ background:{t['menu_selected']}; }}
         """)
         rename_act = menu.addAction("重命名")
+        dock_act = menu.addAction("🖥️ 变成桌面文件框")
         del_act = menu.addAction("删除分组")
         action = menu.exec(QCursor.pos())
         if action == rename_act:
@@ -583,6 +649,28 @@ class GroupWidget(QWidget):
                 database.rename_group(self.group_data["id"], name.strip())
                 self.group_data["name"] = name.strip()
                 self._update_title_count()
+        elif action == dock_act:
+            from db import database as db_mod
+            from ui.dock import PanelWindow  # 延迟 import
+            box_id = db_mod.create_file_box_from_group(self.group_data["id"])
+            if box_id is None:
+                dialog_style.information(self, "提示", "该分组已关联桌面文件框")
+            else:
+                # 通知主面板立即加载这个新 FileBox
+                main_window = self.window()
+                if isinstance(main_window, PanelWindow):
+                    main_window._load_file_boxes()
+                    # 找到刚创建的 FileBox 并 show
+                    from ui.box import FileBox
+                    for b in FileBox._instances:
+                        if b._group_id == self.group_data["id"] and not b.isVisible():
+                            b.show()
+                            break
+                dialog_style.information(
+                    self, "成功",
+                    f"分组「{self.group_data['name']}」已变成桌面文件框 ✅\n"
+                    f"两者数据实时联动"
+                )
         elif action == del_act:
             ret = dialog_style.question(
                 self,