I'm trying to build a GUI with a custom title bar using along with setWindowFlags(FramelessWindowHint).
I have successfully created close/minimise buttons etc with their respective functions and they work perfectly (They are not included in my code below). However I haven't had the same success with making the window moveable using my custom title bar.
When I ran the code and attempted to drag the window, the cursor changed to the blue loading swirl then crashed. I also tried running it with debugger and when I tried to drag the window I got the error:
TypeError: unsupported operand type(s) for +: 'QPoint' and 'builtin_function_or_method'
Below is my a part of my code. (It may be a little messy as I cut it out of a larger project.)
Any help to solve my problem will be greatly appreciated, thank you.
from PyQt5 import QtCore, QtGui, QtWidgets, Qt
from PyQt5.QtCore import Qt
WINDOW_SIZE = 0
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1200, 700)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setSpacing(0)
self.verticalLayout.setObjectName("verticalLayout")
self.top_bar = QtWidgets.QWidget(self.centralwidget)
self.top_bar.setMaximumSize(QtCore.QSize(16777215, 60))
self.top_bar.setStyleSheet("background-color: rgb(52, 56, 60)")
self.top_bar.setObjectName("top_bar")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.top_bar)
self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_2.setSpacing(0)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.frame = QtWidgets.QFrame(self.top_bar)
self.frame.setMinimumSize(QtCore.QSize(80, 60))
self.frame.setMaximumSize(QtCore.QSize(80, 60))
self.frame.setStyleSheet("background-color:rgb(30, 34, 38);\n"
"border: 0px")
self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame.setObjectName("frame")
self.horizontalLayout_4 = QtWidgets.QHBoxLayout(self.frame)
self.horizontalLayout_4.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_4.setSpacing(0)
self.horizontalLayout_4.setObjectName("horizontalLayout_4")
self.horizontalLayout_2.addWidget(self.frame)
self.header_bar = QtWidgets.QFrame(self.top_bar)
self.header_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.header_bar.setFrameShadow(QtWidgets.QFrame.Raised)
self.header_bar.setObjectName("header_bar")
self.horizontalLayout_2.addWidget(self.header_bar)
self.verticalLayout.addWidget(self.top_bar)
self.content = QtWidgets.QWidget(self.centralwidget)
self.content.setStyleSheet("")
self.content.setObjectName("content")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.content)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setSpacing(0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.verticalLayout.addWidget(self.content)
MainWindow.setCentralWidget(self.centralwidget)
self.header_bar.mouseMoveEvent = self.moveWindow
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
def mousePressEvent(self, event):
MainWindow.dragPos = event.globalPos()
def moveWindow(self, event):
if MainWindow.isMaximized():
MainWindow.showNormal()
else:
if event.buttons() == Qt.LeftButton:
MainWindow.move((MainWindow.pos() + event.globalPos() - MainWindow.dragPos))
MainWindow.dragPos = event.globalPos()
event.accept()
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
I marked the places I changed
from PyQt5 import QtCore, QtGui, QtWidgets, Qt
from PyQt5.QtCore import Qt
WINDOW_SIZE = 0
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1200, 700)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setSpacing(0)
self.verticalLayout.setObjectName("verticalLayout")
self.top_bar = QtWidgets.QWidget(self.centralwidget)
self.top_bar.setMaximumSize(QtCore.QSize(16777215, 60))
self.top_bar.setStyleSheet("background-color: rgb(52, 56, 60)")
self.top_bar.setObjectName("top_bar")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.top_bar)
self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_2.setSpacing(0)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.frame = QtWidgets.QFrame(self.top_bar)
self.frame.setMinimumSize(QtCore.QSize(80, 60))
self.frame.setMaximumSize(QtCore.QSize(80, 60))
self.frame.setStyleSheet("background-color:rgb(30, 34, 38);\n"
"border: 0px")
self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame.setObjectName("frame")
self.horizontalLayout_4 = QtWidgets.QHBoxLayout(self.frame)
self.horizontalLayout_4.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_4.setSpacing(0)
self.horizontalLayout_4.setObjectName("horizontalLayout_4")
self.horizontalLayout_2.addWidget(self.frame)
self.header_bar = QtWidgets.QFrame(self.top_bar)
self.header_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.header_bar.setFrameShadow(QtWidgets.QFrame.Raised)
self.header_bar.setObjectName("header_bar")
self.horizontalLayout_2.addWidget(self.header_bar)
self.verticalLayout.addWidget(self.top_bar)
self.content = QtWidgets.QWidget(self.centralwidget)
self.content.setStyleSheet("")
self.content.setObjectName("content")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.content)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setSpacing(0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.verticalLayout.addWidget(self.content)
MainWindow.setCentralWidget(self.centralwidget)
self.header_bar.mouseMoveEvent = self.moveWindow
#*************************************************************************************************************************************************************
self.header_bar.mousePressEvent = self.mousePress
#*************************************************************************************************************************************************************
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
#*************************************************************************************************************************************************************
def mousePress(self, event):
MainWindow.dragPos = MainWindow.pos()
self.mouse_original_pos = MainWindow.mapToGlobal(event.pos())
#*************************************************************************************************************************************************************
def moveWindow(self, event):
if MainWindow.isMaximized():
MainWindow.showNormal()
else:
if event.buttons() == Qt.LeftButton:
#******************************************************************************************************************************************************
MainWindow_last_pos = MainWindow.dragPos + MainWindow.mapToGlobal(event.pos()) - self.mouse_original_pos
MainWindow.move(MainWindow_last_pos)
event.accept()
#******************************************************************************************************************************************************
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())