Im trying to develop a program which have many of my custom widget. in my widget i have a crosshair mouse pointer and when i move it in one of my widgets, all of them must sense it and the crosshair must react on every single widget.
I have a self.update() on the end of the paintEnent function.
How can i force the other widgets on my app to react it?
paintEvent is not a simple code like this and as i add every functions on this part, it make a very high CPU usage. How can i manage it?
import sys
from PyQt5.QtWidgets import QApplication, QDialog, QListWidget,
QComboBox, QVBoxLayout, QPushButton, QLabel, QMainWindow, QWidget,
QHBoxLayout, QVBoxLayout, QSizePolicy
from PyQt5.QtCore import Qt, QSize, QRect
from PyQt5.QtGui import QPalette, QColor, QPen, QPixmap, QPainter,
QBrush
class Boom(QWidget):
xPos=-1.0
def __init__(self,bgColor,xSpace=1,ySpace=1):
super().__init__()
self.bgColor=bgColor
self.x = -1
self.y = -1
self.setSizePolicy(QSizePolicy.MinimumExpanding,QSizePolicy.MinimumExpanding)
self.setMouseTracking(True)
layout = QVBoxLayout()
self.setLayout(layout)
def mouseMoveEvent(self, event):
global xPos
self.x = event.x()
self.y = event.y()
xPos=self.x/self.width()
self.update()
def paintEvent(self, e):
painter = QPainter(self)
font = painter.font()
font.setFamily('Times')
font.setPointSize(8)
painter.setFont(font)
brush = QBrush()
brush.setColor(QColor(self.bgColor))
brush.setStyle(Qt.SolidPattern)
pen = QPen()
pen.setWidth(1)
pen.setColor(QColor('black'))
painter.setPen(pen)
rect = QRect(0, 0, painter.device().width(), painter.device().height())
painter.fillRect(rect, brush)
pen.setColor(QColor('blue'))
painter.setPen(pen)
painter.drawLine(self.x, 0, self.x,painter.device().height()) #V
painter.drawLine(0, self.y, painter.device().width(),self.y) #H
self.update()
painter.end()
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.setWindowTitle("Graph")
MainPanelLayout = QHBoxLayout()
MainPanelLayout.setContentsMargins(1,1,1,1)
MainPanelLayout.setSpacing(1)
B1=Boom('pink',0)
B2=Boom('gray',1)
MainPanelLayout.addWidget(B1)
MainPanelLayout.addWidget(B2)
widget = QWidget()
widget.setLayout(MainPanelLayout)
self.setCentralWidget(widget)
if __name__ == "__main__":
app = QApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
# mainWindow.showMaximized()
app.exec_()
Iv found a way!
I used signal and slots to communicate between instances
May it works for others too :)
import sys
from PyQt5.QtWidgets import QApplication, QDialog, QListWidget,QComboBox, QVBoxLayout, QPushButton, QLabel, QMainWindow,QWidget, QHBoxLayout, QVBoxLayout, QSizePolicy
from PyQt5.QtCore import Qt, QSize, QRect, QObject, pyqtSignal
from PyQt5.QtGui import QPalette, QColor, QPen, QPixmap, QPainter,QBrush
import FxMainForm
class BoomCommunicate(QObject):
signal = pyqtSignal()
class Boom(QWidget):
xPos=-1
def __init__(self,bgColor,nChannel=-1,xSpace=1,ySpace=1):
super().__init__()
self.bgColor=bgColor
self.xSpace=xSpace
self.ySpace=ySpace
self.x = -1
self.y = -1
self.nChannel=nChannel
self.setSizePolicy(QSizePolicy.MinimumExpanding,QSizePolicy.MinimumExpanding)
self.setMouseTracking(True)
self.layout = QVBoxLayout()
self.setLayout(self.layout)
self.communicate = BoomCommunicate()
self.communicate.signal.connect(self.trigger_refresh)
def mouseMoveEvent(self, event):
self.x = event.x()
self.y = event.y()
if self.nChannel==0:
Boom.xPos=self.x/self.width()
self.communicate.signal.emit()
def paintEvent(self, e):
painter = QPainter(self)
font = painter.font()
font.setFamily('Times')
font.setPointSize(8)
painter.setFont(font)
brush = QBrush()
brush.setColor(QColor(self.bgColor))
brush.setStyle(Qt.SolidPattern)
pen = QPen()
pen.setWidth(1)
pen.setColor(QColor('black'))
painter.setPen(pen)
## Border
rect = QRect(0, 0, painter.device().width(), painter.device().height())
painter.fillRect(rect, brush)
pen.setColor(QColor('blue'))
painter.setPen(pen)
# self.Drawings(painter,pen,brush)
if self.nChannel==0:
painter.setPen(QPen(Qt.red, 1, Qt.SolidLine))
painter.drawLine(self.x, self.ySpace, self.x,painter.device().height()-self.ySpace-1) ##V
painter.drawLine(self.xSpace, self.y, painter.device().width()-self.ySpace-1,self.y) ##H
if not FxMainForm.studyItem==None:
painter.setPen(QPen(Qt.black, 1, Qt.SolidLine))
painter.drawText(5, 15,FxMainForm.studyItem[0]+' ('+FxMainForm.studyItem[1]+') ')
Boom.xPos=self.x/self.width()
else:
painter.setPen(QPen(Qt.red, 1, Qt.SolidLine))
painter.drawLine(int(Boom.xPos*painter.device().width()), self.ySpace,int(Boom.xPos*painter.device().width()),painter.device().height()-self.ySpace-1)
painter.end()
def trigger_refresh(self):
self.update()
def sizeHint(self):
return QSize(100, 100)
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.setWindowTitle("Graph-Boom")
self.MainPanelLayout = QHBoxLayout()
self.MainPanelLayout.setContentsMargins(1,1,1,1)
self.MainPanelLayout.setSpacing(1)
self.B1=Boom('pink',0)
self.B2=Boom('gray',1)
self.MainPanelLayout.addWidget(self.B1)
self.MainPanelLayout.addWidget(self.B2)
self.B1.communicate.signal.connect(self.B2.update)
self.widget = QWidget()
self.widget.setLayout(self.MainPanelLayout)
self.setCentralWidget(self.widget)
if __name__ == "__main__":
app = QApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
# mainWindow.showMaximized()
app.exec_()
Related
I am trying to create a PyQt5 - QLabel with both image and text. I would like to have a text at the bottom of the image. Below is a part of the code
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class Window(QWidget):
def __init__(self, *args, **kwargs):
QWidget.__init__(self, *args, **kwargs)
l4=QLabel()
l4.setText('delete')
l4.setAlignment(Qt.AlignBottom)
pixmap = QPixmap("/home/moh/Documents/My_GUI/Icons/Delete.png")
l4.setPixmap(pixmap)
l4.setAlignment(Qt.AlignTop)
self.layout = QGridLayout()
self.layout.addWidget(l4, 0, 0)
self.setLayout(self.layout)
self.show()
app = QApplication(sys.argv)
win = Window()
sys.exit(app.exec_())
You have to use 2 QLabel in a QVBoxLayout:
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication, QLabel, QVBoxLayout, QWidget
class Window(QWidget):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
pixmap_label = QLabel(
pixmap=QPixmap("/home/moh/Documents/My_GUI/Icons/Delete.png")
)
text_label = QLabel(text="delete")
lay = QVBoxLayout(self)
lay.addWidget(pixmap_label, alignment=Qt.AlignCenter)
lay.addWidget(text_label, alignment=Qt.AlignCenter)
if __name__ == "__main__":
app = QApplication(sys.argv)
win = Window()
win.show()
sys.exit(app.exec_())
If you want to use a circle Qlabel image, use this code:
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap, QPainterPath, QPainter
from PyQt5.QtWidgets import QApplication, QLabel, QVBoxLayout, QWidget
class Label(QLabel):
def __init__(self, *args, antialiasing=True, **kwargs):
super(Label, self).__init__(*args, **kwargs)
self.Antialiasing = antialiasing
self.setMaximumSize(90, 90)
self.setMinimumSize(90, 90)
self.radius = 45
self.target = QPixmap(self.size())
self.target.fill(Qt.transparent)
p = QPixmap("Image.jpg").scaled(
90, 90, Qt.KeepAspectRatioByExpanding, Qt.SmoothTransformation)
painter = QPainter(self.target)
if self.Antialiasing:
painter.setRenderHint(QPainter.Antialiasing, True)
painter.setRenderHint(QPainter.HighQualityAntialiasing, True)
painter.setRenderHint(QPainter.SmoothPixmapTransform, True)
path = QPainterPath()
path.addRoundedRect(
0, 0, self.width(), self.height(), self.radius, self.radius)
painter.setClipPath(path)
painter.drawPixmap(0, 0, p)
self.setPixmap(self.target)
class Window(QWidget):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
pixmap_label = Label()
text_label = QLabel(text="delete")
lay = QVBoxLayout(self)
lay.addWidget(pixmap_label, alignment=Qt.AlignCenter)
lay.addWidget(text_label, alignment=Qt.AlignCenter)
if __name__ == "__main__":
app = QApplication(sys.argv)
win = Window()
win.show()
sys.exit(app.exec_())
Task:
For example (the code below) we create QHBoxLayout in which there are two buttons.
import sys
from PyQt5.QtWidgets import (QWidget, QPushButton, QHBoxLayout, QApplication)
class Example(QWidget):
def __init__(self):
super().__init__()
hbox = QHBoxLayout()
okButton = QPushButton("OK")
cancelButton = QPushButton("Cancel")
hbox.addWidget(okButton)
hbox.addWidget(cancelButton)
self.setLayout(hbox)
self.setGeometry(100, 100, 500, 500)
self.show()
app = QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
Necessary:
Set the size for hbox (QHBoxLayout) (W_pix, H_pix) and its coordinates (X_pos, Y_pos) on the main window (they do not fit, I did not find such functions in the documentation for the description for QHBoxLayout, QWidget).
v.2
import sys
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtCore import QRect
from PyQt5.QtWidgets import (QWidget, QPushButton,
QHBoxLayout, QApplication, QMainWindow, QVBoxLayout)
class Example(QMainWindow):
def __init__(self):
super().__init__()
self.hbox = QVBoxLayout()
self.okButton = QPushButton("OK")
self.cancelButton = QPushButton("Cancel")
self.hbox.addWidget(self.okButton)
self.hbox.addWidget(self.cancelButton)
self.setGeometry(100, 100, 500, 500)
self.setLayout(self.hbox)
self.hbox.setGeometry(QtCore.QRect(200, 200, 300, 300))
self.show()
app = QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
A QXLayout is not a visual element, so establishing the geometry (position and size) cannot be applied directly but must be interpreted.
The task of QHBoxLayout is to distribute widgets horizontally using as information the sizeHint, sizePolicy, minimum and maximum sizes, etc. and will use the maximum available size that gives the widget where it was established.
Considering the last point you can extrapolate your requirement to that widget since as described the geometry that handles the layout is that of that widget. So in this case a QWidget used as a container is created.
from PyQt5.QtWidgets import QApplication, QHBoxLayout, QMainWindow, QPushButton, QWidget
class Example(QMainWindow):
def __init__(self):
super().__init__()
x_pos, y_pos = 10, 10
w_pix, h_pix = 150, 150
container = QWidget(self)
container.setContentsMargins(0, 0, 0, 0)
container.setFixedSize(w_pix, h_pix)
container.move(x_pos, y_pos)
container.setStyleSheet("background-color:salmon;")
hbox = QHBoxLayout(container)
hbox.setContentsMargins(0, 0, 0, 0)
self.okButton = QPushButton("OK")
self.cancelButton = QPushButton("Cancel")
hbox.addWidget(self.okButton)
hbox.addWidget(self.cancelButton)
self.resize(640, 480)
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
I want my window and it's QGraphicsScene to be transparent which is controlled by QSlider.
I tried looking for some answers here and there, but it's mainly setting background color to 0 :
self.setStyleSheet("background-color:rgba(0, 0, 0, 0);")
or like that :
self.setWindowFlags(Qt.FramelessWindowHint)
self.setAttribute(Qt.WA_TranslucentBackground)
Which does it job, but I would like to make slider which will control level of transparency and I don't see how can I do it with commands above.
Can somebody please give me some advise how to do it ? Thank you
I will attach my test code here below(I want to be able to control transparency of everything , but do not touch slider and button):
from PySide2.QtGui import QBrush, QColor
from PySide2.QtCore import QSize, Qt
from PySide2.QtWidgets import QDialog, QVBoxLayout, QGraphicsView, QGraphicsScene, QFrame, QSizePolicy, QApplication, QSlider, QPushButton
class MainWindow(QDialog):
def __init__(self):
QDialog.__init__(self)
self.mainLayout = QVBoxLayout()
self.graphicsWidget = MainGraphicsWidget()
self.window = 'transp_test'
self.title = 'transparent UI'
self.size = (1000, 650)
self.create()
def create(self, **kwargs):
self.setWindowTitle(self.title)
self.resize(QSize(*self.size))
self.setLayout(self.mainLayout)
self.mainLayout.addWidget(self.graphicsWidget)
class MainGraphicsWidget(QGraphicsView):
def __init__(self, parent=None):
super(MainGraphicsWidget, self).__init__(parent)
self._scene = QGraphicsScene(backgroundBrush = Qt.gray)
self.setScene(self._scene)
self.transpSlider = QSlider()
self.transpSlider.setRange(0,100)
self.mainButton = QPushButton('I want it to be "Test" button')
self._scene.addWidget(self.mainButton)
self._scene.addWidget(self.transpSlider)
self.transpSlider.move(300, 100)
self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
self.setResizeAnchor(QGraphicsView.AnchorUnderMouse)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setBackgroundBrush(QBrush(QColor(30, 30, 30)))
self.setFrameShape(QFrame.NoFrame)
self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding))
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
window = MainWindow()
window.setGeometry(600, 300, 600, 600)
window.show()
sys.exit(app.exec_())
Here is one way.
class MainWindow(QDialog):
def __init__(self):
QDialog.__init__(self)
# these two lines are needed to get a transparent background in windows
self.setWindowFlags(Qt.FramelessWindowHint)
self.setAttribute(Qt.WA_TranslucentBackground)
# rest of class definition unchanged
class MainGraphicsWidget(QGraphicsView):
def __init__(self, parent=None):
super(MainGraphicsWidget, self).__init__(parent)
# set transparent background color for the widget itself
self.setStyleSheet("background-color: #00000000")
self._scene = QGraphicsScene()
self.setScene(self._scene)
# create of slider and connect to slot for changing opacity.
self.transpSlider = QSlider()
self.transpSlider.setStyleSheet('background-color: #00000000')
self.transpSlider.setRange(0,255)
self.transpSlider.valueChanged.connect(self.set_opacity)
self.transpSlider.setValue(255)
# rest of __init__ unchanged
def set_opacity(self, value):
brush = self.backgroundBrush()
color = brush.color()
color.setAlpha(value)
brush.setColor(color)
self.setBackgroundBrush(color)
Note that I've changed the range of the slider to 0-255 to make changing the opacity from fully opaque to fully transparent easier.
Try it:
#from PySide2.QtGui import QBrush, QColor
#from PySide2.QtCore import QSize, Qt
#from PySide2.QtWidgets import QDialog, QVBoxLayout, QGraphicsView, QGraphicsScene, QFrame, QSizePolicy, QApplication, QSlider, QPushButton
from PyQt5 import QtCore, QtWidgets, QtGui
from PyQt5.QtGui import QBrush, QColor
from PyQt5.QtCore import QSize, Qt
from PyQt5.QtWidgets import (QDialog, QVBoxLayout, QGraphicsView, QGraphicsScene,
QFrame, QSizePolicy, QApplication, QSlider, QPushButton)
class MainGraphicsWidget(QGraphicsView):
def __init__(self, parent=None):
super(MainGraphicsWidget, self).__init__(parent)
self._scene = QGraphicsScene()
self.setScene(self._scene)
self.transpSlider = QtWidgets.QSlider(
QtCore.Qt.Horizontal,
minimum=10,
maximum=100,
value=100,
valueChanged=self.onValueChanged,
)
self.mainButton = QPushButton('I want it to be "Test" button \n QUIT')
self.mainButton.resize(150, 150)
self.mainButton.clicked.connect(parent.close)
self._scene.addWidget(self.mainButton)
self._scene.addWidget(self.transpSlider)
self.transpSlider.move(300, 100)
self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
self.setResizeAnchor(QGraphicsView.AnchorUnderMouse)
c = QColor(220, 30, 30)
c.setAlphaF(1)
self.setBackgroundBrush(QBrush(c))
self.setFrameShape(QFrame.NoFrame)
self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding))
#QtCore.pyqtSlot(int)
def onValueChanged(self, value):
c = QColor(220, 30, 30)
c.setAlphaF(value * 0.01)
self.setBackgroundBrush(QBrush(c))
window.setWindowOpacity(value * 0.03)
self.setStyleSheet("MainGraphicsWidget {{background-color: rgba(0, 215, 55, {});}}".format(value))
class MainWindow(QDialog):
def __init__(self):
super().__init__()
self.setAttribute(Qt.WA_NoSystemBackground, False)
self.setStyleSheet("MainWindow {background-color: rgba(0, 215, 55, 70);}")
self.graphicsWidget = MainGraphicsWidget(self)
self.window = 'transp_test'
self.title = 'transparent UI'
self.size = (1000, 650)
self.setWindowTitle(self.title)
self.resize(QSize(*self.size))
self.mainLayout = QVBoxLayout()
self.setLayout(self.mainLayout)
self.mainLayout.addWidget(self.graphicsWidget)
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
window = MainWindow()
window.setGeometry(600, 100, 600, 600)
window.show()
sys.exit(app.exec_())
The example shown below adds a very simple custom pyqt5 widget to a QScrollArea. When i move the custom widget "off" the area of the scroll area I would expect that scrollbars should appear. Obviously this is not the case.
#!/usr/bin/python3
from PyQt5.QtWidgets import QMainWindow, QWidget, QApplication, QScrollArea
from PyQt5.QtCore import QObject
from PyQt5.QtGui import QPainter, QColor, QPen
import sys
class ExampleWidget(QWidget):
def __init__(self, parent=None):
super().__init__(parent=parent)
def paintEvent(self, e):
qp = QPainter()
qp.begin(self)
self.drawWidget(qp)
qp.end()
def drawWidget(self, qp):
qp.setPen(QColor(255, 0, 0))
qp.setBrush(QColor(255, 0, 0))
qp.drawRect(0, 0, 100, 100)
class Example(QMainWindow):
def __init__(self):
super().__init__()
self.setGeometry(300, 300, 300, 200)
self.scrollArea = QScrollArea(self)
self.setCentralWidget(self.scrollArea)
self.widget = ExampleWidget(self.scrollArea)
self.widget.setGeometry(250, 150, 100, 100)
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
How can I make the scrollbars appear once a widget is moved so it's not visible completely anymore?
In the code that samples ExampleWidget is a child of QScrollArea: self.widget = ExampleWidget(self.scrollArea), that does not imply that the widget is handled with the properties of the QScrollArea, the QScrollArea has a viewport() that is the background widget and the QScrollArea only shows a part of it. So if you want a widget to be inside you have to use the setWidget() method. On the other hand that viewport() has the size of the content and how it calculates that size ?, by default it uses the sizeHint() of the widget, and in your case it does not have it so it will not show what you want.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class ExampleWidget(QtWidgets.QWidget):
def paintEvent(self, e):
qp = QtGui.QPainter(self)
self.drawWidget(qp)
def drawWidget(self, qp):
qp.setPen(QtGui.QColor(255, 0, 0))
qp.setBrush(QtGui.QColor(255, 0, 0))
qp.drawRect(0, 0, 100, 100)
def sizeHint(self):
return QtCore.QSize(500, 500)
class Example(QtWidgets.QMainWindow):
def __init__(self):
super().__init__()
self.scrollArea = QtWidgets.QScrollArea()
self.setCentralWidget(self.scrollArea)
self.widget = ExampleWidget()
self.scrollArea.setWidget(self.widget)
self.show()
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
I have a QMainWindow with a toolbar, and I'm having troubles with fitting the QPixmap to the window, such that it won't tackle with the toolbar.
I want to display the picture:
And from the code:
import sys
from PyQt5.QtCore import QRect
from PyQt5.QtWidgets import QAction, QMainWindow, QApplication
from PyQt5.QtGui import QPixmap, QPainter
class Menu(QMainWindow):
def __init__(self):
super().__init__()
newAct = QAction('New', self)
self.toolbar = self.addToolBar('Remove')
self.toolbar.addAction(newAct)
self.image = QPixmap("background.png")
self.setGeometry(100, 30, 500, 300)
self.resize(self.image.width(), self.image.height())
self.show()
def paintEvent(self, event):
painter = QPainter(self)
rect = QRect(0, 0, self.image.width(), self.image.height())
painter.drawPixmap(rect, self.image)
if __name__ == '__main__':
app = QApplication(sys.argv)
mainMenu = Menu()
sys.exit(app.exec_())
I get:
And as you can see, The picture is on the toolbar as well, and I don't want that.
Another try:
import sys
from PyQt5.QtCore import QRect
from PyQt5.QtWidgets import QAction, QMainWindow, QApplication
from PyQt5.QtGui import QPixmap, QPainter
class Menu(QMainWindow):
def __init__(self):
super().__init__()
newAct = QAction('New', self)
self.toolbar = self.addToolBar('Remove')
self.toolbar.addAction(newAct)
self.image = QPixmap("background.png")
self.setGeometry(100, 30, 500, 300)
self.resize(self.image.width(), self.image.height() + self.toolbar.height())
self.show()
def paintEvent(self, event):
painter = QPainter(self)
rect = QRect(0, self.toolbar.height(), self.image.width(), self.image.height() + self.toolbar.height())
painter.drawPixmap(rect, self.image)
if __name__ == '__main__':
app = QApplication(sys.argv)
mainMenu = Menu()
sys.exit(app.exec_())
But I get:
And as you can see, I don't see one of the lines (the blue one).
How can I fix it, so the picture will fit the window excluding the toolbar?
In addition to that, it means I'll have to change all my mouse clicks to move the y-axis. Is there perhaps a way I can set everything such that (x,y)=(0,0) would be at the uppermost left, below the toolbar?
I'm using Python 3.6.5 |Anaconda custom (64-bit) on windows | PyQt version: 5.9.2
Although I can not reproduce the problem, the following solution must work, in it I draw the image in a widget and I set them as centralwidget.
import sys
from PyQt5.QtCore import QRect
from PyQt5.QtWidgets import QAction, QMainWindow, QApplication, QWidget
from PyQt5.QtGui import QPixmap, QPainter
class Widget(QWidget):
def __init__(self, parent=None):
super().__init__(parent)
self.image = QPixmap("background.png")
self.setFixedSize(self.image.size())
def paintEvent(self, event):
painter = QPainter(self)
painter.drawPixmap(self.rect(), self.image)
class Menu(QMainWindow):
def __init__(self):
super().__init__()
newAct = QAction('New', self)
self.toolbar = self.addToolBar('Remove')
self.toolbar.addAction(newAct)
self.setCentralWidget(Widget())
self.setFixedSize(self.sizeHint())
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
mainMenu = Menu()
sys.exit(app.exec_())