feat(gui): 新增查看换盘G-code按钮，弹出只读窗口展示内容

a1_swap_mod_packer/gui.py

@@ -34,6 +34,7 @@ try:
         QAbstractItemView,
         QCheckBox,
         QComboBox,
+        QDialog,
         QFileDialog,
         QFormLayout,
         QGridLayout,
@@ -512,10 +513,13 @@ class MainWindow(QMainWindow):
         self.swap_gcode_combo.setMinimumWidth(240)
         self.swap_gcode_combo.setMaximumWidth(440)
         self.refresh_button = QPushButton(t("gui.options.refresh"))
+        self.view_gcode_button = QPushButton(t("gui.options.view_gcode"))
         self.open_folder_button = QPushButton(t("gui.options.open_folder"))
         self.refresh_button.setFixedWidth(self.refresh_button.sizeHint().width())
+        self.view_gcode_button.setFixedWidth(self.view_gcode_button.sizeHint().width())
         self.open_folder_button.setFixedWidth(self.open_folder_button.sizeHint().width())
         self.refresh_button.clicked.connect(self.load_swap_gcode_to_combo)
+        self.view_gcode_button.clicked.connect(self.view_swap_gcode)
         self.open_folder_button.clicked.connect(self.open_swap_gcode_folder)
 
         # 默认份数
@@ -619,6 +623,7 @@ class MainWindow(QMainWindow):
         grid.addWidget(self.swap_gcode_combo, 0, 1, 1, 2)
         swap_btn_row = QHBoxLayout()
         swap_btn_row.addWidget(self.refresh_button)
+        swap_btn_row.addWidget(self.view_gcode_button)
         swap_btn_row.addWidget(self.open_folder_button)
         swap_btn_row.addStretch(1)
         grid.addLayout(swap_btn_row, 0, 3)
@@ -889,6 +894,35 @@ class MainWindow(QMainWindow):
         folder.mkdir(parents=True, exist_ok=True)
         self.open_path(folder)
 
+    def view_swap_gcode(self) -> None:
+        """在弹出的只读窗口中展示当前选中的换盘 G-code 内容。"""
+        gcode_path = self.swap_gcode_combo.currentData()
+        if not gcode_path:
+            return
+        try:
+            text = Path(gcode_path).read_text(encoding="utf-8-sig", errors="replace")
+        except OSError as exc:
+            QMessageBox.warning(self, t("gui.dialog.warning.title"), str(exc))
+            return
+
+        dialog = QDialog(self)
+        dialog.setWindowTitle(t("gui.dialog.view_gcode.title") + " - " + Path(gcode_path).name)
+        dialog.resize(700, 480)
+        layout = QVBoxLayout(dialog)
+        editor = QTextEdit()
+        editor.setReadOnly(True)
+        font = QFont("Consolas", 10)
+        editor.setFont(font)
+        editor.setText(text)
+        layout.addWidget(editor)
+        close_btn = QPushButton(t("gui.button.close"))
+        close_btn.clicked.connect(dialog.close)
+        btn_row = QHBoxLayout()
+        btn_row.addStretch(1)
+        btn_row.addWidget(close_btn)
+        layout.addLayout(btn_row)
+        dialog.exec()
+
     def open_patch_config(self) -> None:
         """打开 G-code 补丁配置文件。"""
         path = default_patch_config_path()
@@ -1490,9 +1524,11 @@ class MainWindow(QMainWindow):
         self.options_group.setTitle(t("gui.options.group.title"))
         self.refresh_button.setText(t("gui.options.refresh"))
         self.open_folder_button.setText(t("gui.options.open_folder"))
+        self.view_gcode_button.setText(t("gui.options.view_gcode"))
         # 重新计算按钮宽度以适应翻译后的文本长度
         self.refresh_button.setFixedWidth(self.refresh_button.sizeHint().width())
         self.open_folder_button.setFixedWidth(self.open_folder_button.sizeHint().width())
+        self.view_gcode_button.setFixedWidth(self.view_gcode_button.sizeHint().width())
         self.bed_cooldown_check.setText(t("gui.options.bed_cooldown"))
         self.eject_wait_check.setText(t("gui.options.eject_wait"))
         self.show_plate_number_check.setText(t("gui.options.plate_number"))