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| # The QToolBar class provides a movable
# panel that contains a set of controls.
import sys
from PySide6.QtCore import Qt
from PySide6.QtGui import QAction, QIcon
from PySide6.QtWidgets import (QApplication, QMainWindow,
QTextEdit, QLabel, QMessageBox)
class QEditor(QMainWindow):
def __init__(self):
super().__init__()
self.text_edit = QTextEdit()
self.setCentralWidget(self.text_edit)
self.label = QLabel()
self.statusBar().addWidget(self.label)
self.text_edit.textChanged.connect(self.on_text_changed)
menu_bar = self.menuBar()
file_menu = menu_bar.addMenu('&File')
# You can add icons to QActions.
# Icons are shown both in the menu and in the toolbar.
# I used icons from the Tango project.
exit_action = QAction(self)
exit_action.setText('&Exit')
exit_action.setIcon(QIcon('./icons/exit.png'))
exit_action.triggered.connect(QApplication.quit)
file_menu.addAction(exit_action)
help_menu = menu_bar.addMenu('&Help')
about_action = QAction(self)
about_action.setText('&About')
about_action.setIcon(QIcon('./icons/about.png'))
about_action.triggered.connect(self.show_messagebox)
help_menu.addAction(about_action)
# 1 - Create the toolbar
file_toolbar = self.addToolBar('File')
# 2 - Add actions to it. I reuse the same actions
# that I used for the menu.
file_toolbar.addAction(exit_action)
file_toolbar.addAction(about_action)
# 3 - ... and that's about it. Here I just
# set the icons to be displayed besides the text.
file_toolbar.setToolButtonStyle(
Qt.ToolButtonStyle.ToolButtonTextBesideIcon)
def on_text_changed(self):
cursor = self.text_edit.textCursor()
size = len(self.text_edit.toPlainText())
x = str(cursor.blockNumber() + 1)
y = str(cursor.columnNumber() + 1)
self.label.setText('Chars: {}, Ln: {}, Col: {}'.format(size, x, y))
def show_messagebox(self):
messagebox = QMessageBox()
messagebox.setText('PyQt menu example')
messagebox.exec()
if __name__ == '__main__':
if not QApplication.instance():
app = QApplication(sys.argv)
else:
app = QApplication.instance()
editor = QEditor()
editor.show()
sys.exit(app.exec())
|