Qtoolbutton - menu and popup mode

1、 Menu and popup mode , Same as QPushButton, Click to have a quick access .

During the setting process , The top-level menu will not pop up the title and related icons .

2、 Set menu options for normal buttons , During the setting process , The top-level menu will not pop up the title and related icons .

import sys
from PyQt5.Qt import *

#  Make it into an activity module , Easy to modify 
# 1、 Create application , You can pass parameters to app, Enter parameters from the command line 
app = QApplication(sys.argv)
window = QWidget()
window.setWindowTitle("QToolButton Use ")
window.resize(500, 500)

#  Create a normal button 
btn = QPushButton(window)
btn.setText(" General buttons ")
btn.move(100, 100)
btn.setFlat(True)

menu = QMenu(btn)
menu.setTitle(" menu ")
#  Put submenus and actions in the menu 

sub_menu = QMenu(menu)
sub_menu.setTitle(" Sub menu ")

#  Put in meun In parent object 
action = QAction(" Behavior ", menu)
#  monitor action Signal in 
action.triggered.connect(lambda : print(" Clicked behavior "))
menu.addMenu(sub_menu)
menu.addSeparator()
menu.addAction(action)

btn.setMenu(menu)

window.show()
sys.exit(app.exec_())

3、 Set common tool buttons ：（setMenu() call QToolButton Class ）

How to pop up menus under ordinary tool buttons ：（ Hold down the mouse , It will appear later .）

  Use scenarios ： This button of the browser , Press and hold and the browsing record will be displayed .

import sys
from PyQt5.Qt import *

#  Make it into an activity module , Easy to modify 
# 1、 Create application , You can pass parameters to app, Enter parameters from the command line 
app = QApplication(sys.argv)
window = QWidget()
window.setWindowTitle("QToolButton Use ")
window.resize(500, 500)

tb = QToolButton(window)
tb.setText(" Button ")
tb.setArrowType(Qt.LeftArrow)
tb.setToolButtonStyle(Qt.ToolButtonTextBesideIcon)
tb.setAutoRaise(True)

menu = QMenu(tb)
menu.setTitle(" menu ")
#  Put submenus and actions in the menu 

sub_menu = QMenu(menu)
sub_menu.setTitle(" Sub menu ")

#  Put in meun In parent object 
action = QAction(" Behavior ", menu)
#  monitor action Signal in 
action.triggered.connect(lambda : print(" Clicked behavior "))
menu.addMenu(sub_menu)
menu.addSeparator()
menu.addAction(action)
tb.setMenu(menu)

window.show()
sys.exit(app.exec_())

4、 Modify the menu popup mode of the tool button ：

Menu mode details ： Sometimes the image signal is transmitted .（ The slot to which this signal is connected is not executed ）

import sys
from PyQt5.Qt import *

#  Make it into an activity module , Easy to modify 
# 1、 Create application , You can pass parameters to app, Enter parameters from the command line 
app = QApplication(sys.argv)
window = QWidget()
window.setWindowTitle("QToolButton Use ")
window.resize(500, 500)

tb = QToolButton(window)
tb.setText(" Button ")
tb.setArrowType(Qt.LeftArrow)
tb.setToolButtonStyle(Qt.ToolButtonTextBesideIcon)
tb.setAutoRaise(True)

menu = QMenu(tb)
menu.setTitle(" menu ")
#  Put submenus and actions in the menu 

sub_menu = QMenu(menu)
sub_menu.setTitle(" Sub menu ")

#  Put in meun In parent object 
action = QAction(" Behavior ", menu)
#  monitor action Signal in 
action.triggered.connect(lambda : print(" Clicked behavior "))
menu.addMenu(sub_menu)
menu.addSeparator()
menu.addAction(action)

tb.clicked.connect(lambda: print(" The tool button is clicked "))

tb.setMenu(menu)

#  Modify the popup method of the menu 
#tb.setPopupMode(QToolButton.InstantPopup)
window.show()
sys.exit(app.exec_())