Update handling of runtime platforms

更新对运行时平台的处理方式，用全局变量保存，避免从子控件获取父控件属性；
添加获取运行时平台命令行续行符的功能；

src/py2exe_gui/Constants/platform_constants.py

@@ -31,3 +31,22 @@ def get_platform() -> PLATFORM:
         return PLATFORM.macos
     else:
         return PLATFORM.others
+
+
+# 以全局变量形式，保存当前运行时的平台信息
+RUNTIME_PLATFORM = get_platform()
+
+# 各平台的命令行续行符
+line_continuation_text = {"shell": "\\", "cmd": "^", "powershell": "`"}
+
+
+def get_line_continuation() -> str:
+    """
+    获取当前运行平台对应的命令行续行符 \n
+    :return: line continuation character
+    """
+
+    if PLATFORM.windows == RUNTIME_PLATFORM:
+        return line_continuation_text["powershell"]
+    else:
+        return line_continuation_text["shell"]

src/py2exe_gui/Widgets/center_widget.py

@@ -19,7 +19,7 @@ from PySide6.QtWidgets import (
 )
 
 from ..Constants.packaging_constants import PyinstallerArgs
-from ..Constants.platform_constants import PLATFORM
+from ..Constants.platform_constants import PLATFORM, RUNTIME_PLATFORM
 from .arguments_browser import ArgumentsBrowser
 from .dialog_widgets import IconFileDlg, ScriptFileDlg
 
@@ -41,9 +41,6 @@ class CenterWidget(QWidget):
 
         self.parent_widget = parent
 
-        # 根据运行平台不同，提供的控件也有所区别
-        self.running_platform: PLATFORM = parent.running_platform  # type: ignore
-
         # 待打包的入口脚本
         self.script_path_label = QLabel()
         self.script_file_dlg = ScriptFileDlg()
@@ -61,16 +58,16 @@ class CenterWidget(QWidget):
         self.fd_group = QButtonGroup()
 
         # 应用图标（仅 Windows 与 macOS）
-        if self.running_platform in (PLATFORM.windows, PLATFORM.macos):
+        if RUNTIME_PLATFORM in (PLATFORM.windows, PLATFORM.macos):
             self.icon_path_label = QLabel()
             self.icon_file_dlg = IconFileDlg()
             self.icon_browse_btn = QPushButton()
             self.icon_path_le = QLineEdit()
 
-        # TODO 重构不同平台功能判断，减少 if self.running_platform in () 语句重复次数
+        # TODO 重构不同平台功能判断，减少 if RUNTIME_PLATFORM in () 语句重复次数
 
         # 是否为stdio启用终端（仅 Windows 与 macOS）
-        if self.running_platform in (PLATFORM.windows, PLATFORM.macos):
+        if RUNTIME_PLATFORM in (PLATFORM.windows, PLATFORM.macos):
             self.console_checkbox = QCheckBox()
 
         # 清理缓存与临时文件
@@ -106,7 +103,7 @@ class CenterWidget(QWidget):
         self.fd_group.addButton(self.one_dir_btn, 0)
         self.fd_group.addButton(self.one_file_btn, 1)
 
-        if self.running_platform in (PLATFORM.windows, PLATFORM.macos):
+        if RUNTIME_PLATFORM in (PLATFORM.windows, PLATFORM.macos):
             self.icon_path_label.setText("应用图标：")
             self.icon_path_le.setReadOnly(True)
             self.icon_path_le.setPlaceholderText("图标文件路径")
@@ -210,7 +207,7 @@ class CenterWidget(QWidget):
         self.fd_group.idClicked.connect(one_fd_selected)  # type: ignore
         self.run_packaging_btn.clicked.connect(run_packaging)  # type: ignore
 
-        if self.running_platform in (PLATFORM.windows, PLATFORM.macos):
+        if RUNTIME_PLATFORM in (PLATFORM.windows, PLATFORM.macos):
             self.icon_browse_btn.clicked.connect(self.icon_file_dlg.open)  # type: ignore
             self.icon_file_dlg.fileSelected.connect(icon_file_selected)  # type: ignore
             self.console_checkbox.toggled.connect(console_selected)  # type: ignore
@@ -245,7 +242,7 @@ class CenterWidget(QWidget):
         main_layout.addLayout(fd_layout)
         main_layout.addStretch(10)
 
-        if self.running_platform in (PLATFORM.windows, PLATFORM.macos):
+        if RUNTIME_PLATFORM in (PLATFORM.windows, PLATFORM.macos):
             main_layout.addWidget(self.console_checkbox)
             main_layout.addStretch(10)
             icon_layout = QGridLayout()

src/py2exe_gui/__main__.py

@@ -6,7 +6,7 @@ import sys
 from PySide6.QtGui import QCloseEvent
 from PySide6.QtWidgets import QApplication
 
-from .Constants.platform_constants import get_platform  # noqa
+from .Constants.platform_constants import RUNTIME_PLATFORM  # noqa
 from .Core import Packaging, PackagingTask  # noqa
 from .Resources import compiled_resources  # noqa
 from .Widgets import MainWindow, SubProcessDlg  # noqa
@@ -18,7 +18,6 @@ class MainApp(MainWindow):
     """
 
     def __init__(self, *args, **kwargs) -> None:
-        self.running_platform = get_platform()  # 获取当前运行的平台信息
         super().__init__(*args, **kwargs)
 
         self.packaging_task = PackagingTask(self)