PySide Qt for Python에서 QAction QMenuBar QToolBar 단축키 스코프와 상태 토글 완벽 가이드

from PySide6.QtWidgets import QApplication, QMainWindow, QToolBar, QMenuBar, QTextEdit, QAction
from PySide6.QtGui import QKeySequence
from PySide6.QtCore import Qt
import sys

class Window(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Actions & Shortcuts")

        editor = QTextEdit()
        self.setCentralWidget(editor)

        # 1) QAction 생성
        act_toggle_wrap = QAction("줄 바꿈 토글", self)
        act_toggle_wrap.setCheckable(True)
        act_toggle_wrap.setShortcut(QKeySequence("Ctrl+W"))
        act_toggle_wrap.setShortcutContext(Qt.WindowShortcut)  # 윈도우 전역
        act_toggle_wrap.toggled.connect(lambda on: editor.setLineWrapMode(
            QTextEdit.WidgetWidth if on else QTextEdit.NoWrap
        ))
        self.addAction(act_toggle_wrap)  # 컨텍스트 활성화를 위해 윈도우에 등록

        # 2) 메뉴바/툴바에 동일 액션 연결
        menubar = QMenuBar(self)
        menu_view = menubar.addMenu("보기")
        menu_view.addAction(act_toggle_wrap)
        self.setMenuBar(menubar)

        toolbar = QToolBar("보기")
        toolbar.addAction(act_toggle_wrap)
        self.addToolBar(toolbar)

        # 3) 플랫폼에 맞는 키 표시: QKeySequence 표준키 활용 예
        act_new = QAction("새 파일", self)
        act_new.setShortcut(QKeySequence.New)  # Win: Ctrl+N / macOS: ⌘N
        self.addAction(act_new)
        menu_file = menubar.addMenu("파일")
        menu_file.addAction(act_new)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = Window()
    w.resize(800, 520)
    w.show()
    sys.exit(app.exec())

from PySide6.QtWidgets import QApplication, QMainWindow, QAction, QInputDialog
from PySide6.QtGui import QKeySequence
from PySide6.QtCore import Qt
import sys

class DynamicShortcutDemo(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Dynamic Shortcut Example")

        # 초기 액션
        self.action_save = QAction("저장", self)
        self.action_save.setShortcut(QKeySequence("Ctrl+S"))
        self.action_save.setShortcutContext(Qt.WindowShortcut)
        self.action_save.triggered.connect(lambda: print("파일 저장됨"))
        self.addAction(self.action_save)

        # 단축키 변경 액션
        self.action_edit_shortcut = QAction("단축키 변경", self)
        self.action_edit_shortcut.setShortcut(QKeySequence("Ctrl+K"))
        self.action_edit_shortcut.triggered.connect(self.change_shortcut)
        self.addAction(self.action_edit_shortcut)

    def change_shortcut(self):
        new_key, ok = QInputDialog.getText(self, "단축키 변경", "새 단축키 입력 (예: Ctrl+Alt+S):")
        if ok and new_key:
            try:
                seq = QKeySequence(new_key)
                self.action_save.setShortcut(seq)
                print(f"단축키 변경됨: {seq.toString()}")
            except Exception as e:
                print(f"오류: {e}")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = DynamicShortcutDemo()
    w.resize(500, 300)
    w.show()
    sys.exit(app.exec())

act_refresh = QAction("새로고침", window)
act_refresh.setShortcut(QKeySequence("F5"))

# 메인 윈도우 안에서는 어디서나 작동
act_refresh.setShortcutContext(Qt.WindowShortcut)
act_refresh.triggered.connect(lambda: print("화면 갱신됨"))
window.addAction(act_refresh)

# ApplicationShortcut 예시
act_global_help = QAction("도움말", window)
act_global_help.setShortcut(QKeySequence("Ctrl+F1"))
act_global_help.setShortcutContext(Qt.ApplicationShortcut)
act_global_help.triggered.connect(lambda: print("도움말 호출"))
window.addAction(act_global_help)

from PySide6.QtWidgets import QApplication, QMainWindow, QPlainTextEdit, QAction, QMenuBar, QToolBar
from PySide6.QtGui import QKeySequence
from PySide6.QtCore import Qt
import sys

class ToggleActionExample(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("QAction 상태 토글 예제")

        self.editor = QPlainTextEdit()
        self.setCentralWidget(self.editor)

        # QAction 생성
        self.action_show_line = QAction("줄 번호 표시", self)
        self.action_show_line.setCheckable(True)
        self.action_show_line.setChecked(True)
        self.action_show_line.setShortcut(QKeySequence("Ctrl+L"))
        self.action_show_line.setShortcutContext(Qt.WindowShortcut)
        self.action_show_line.toggled.connect(self.toggle_line_numbers)
        self.addAction(self.action_show_line)

        # 메뉴/툴바에 연결
        menubar = QMenuBar(self)
        menu_view = menubar.addMenu("보기")
        menu_view.addAction(self.action_show_line)
        self.setMenuBar(menubar)

        toolbar = QToolBar("보기")
        toolbar.addAction(self.action_show_line)
        self.addToolBar(toolbar)

    def toggle_line_numbers(self, visible):
        if visible:
            print("줄 번호 표시 ON")
        else:
            print("줄 번호 표시 OFF")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = ToggleActionExample()
    w.resize(600, 400)
    w.show()
    sys.exit(app.exec())

from PySide6.QtWidgets import QApplication, QMainWindow, QLabel, QAction
from PySide6.QtGui import QKeySequence
from PySide6.QtCore import Qt
import sys

class GlobalShortcutDemo(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Global Shortcut Demo")

        self.label = QLabel("Ctrl+1 : Dark Mode / Ctrl+2 : Light Mode / Ctrl+Q : Quit", alignment=Qt.AlignCenter)
        self.setCentralWidget(self.label)

        # 다크모드 전환
        self.act_dark = QAction("Dark Mode", self)
        self.act_dark.setShortcut(QKeySequence("Ctrl+1"))
        self.act_dark.setShortcutContext(Qt.ApplicationShortcut)
        self.act_dark.triggered.connect(lambda: self.switch_mode("dark"))
        self.addAction(self.act_dark)

        # 라이트모드 전환
        self.act_light = QAction("Light Mode", self)
        self.act_light.setShortcut(QKeySequence("Ctrl+2"))
        self.act_light.setShortcutContext(Qt.ApplicationShortcut)
        self.act_light.triggered.connect(lambda: self.switch_mode("light"))
        self.addAction(self.act_light)

        # 종료
        self.act_quit = QAction("Quit", self)
        self.act_quit.setShortcut(QKeySequence("Ctrl+Q"))
        self.act_quit.setShortcutContext(Qt.ApplicationShortcut)
        self.act_quit.triggered.connect(app.quit)
        self.addAction(self.act_quit)

    def switch_mode(self, mode):
        if mode == "dark":
            self.setStyleSheet("background-color: #121212; color: white;")
            self.label.setText("🌙 Dark Mode 활성화")
        else:
            self.setStyleSheet("background-color: white; color: black;")
            self.label.setText("☀️ Light Mode 활성화")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = GlobalShortcutDemo()
    w.resize(600, 300)
    w.show()
    sys.exit(app.exec())