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I have been trying to figure this out for the last two days. I want to make my window frameless, I saw in a couple of resources that I should be using Qt.FramelessWindowHint . However, it doesn't want to work and I can't figure out why.
Can someone please point out what's wrong with my code, as I am very new to PyQt5?
(I have commented out sections that are related to some other files)
from PyQt5 import QtWidgets, QtCore, QtGui
from PyQt5.QtCore import QTimer, Qt
#from HomeWindow import Ui_Form
class Ui_MainWindow(QtWidgets.QMainWindow):
def __init__(self):
super().__init__()
#def secondscreen(self):
#self.Form = QtWidgets.QWidget()
#self.ui = Ui_Form()
#self.ui.setupUi(self.Form)
#self.Form.showMaximized()
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(560, 350)
MainWindow.setStyleSheet("background-color: rgb(255, 255, 255);")
flags = Qt.WindowFlags(Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint)
self.setWindowFlags(flags)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)
self.textBrowser.setGeometry(QtCore.QRect(80, 280, 470, 60))
self.textBrowser.setFrameShape(QtWidgets.QFrame.NoFrame)
self.textBrowser.setFrameShadow(QtWidgets.QFrame.Plain)
self.textBrowser.setObjectName("textBrowser")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(10, 270, 61, 71))
self.label.setText("")
self.label.setPixmap(QtGui.QPixmap("../Media/College Logo.png"))
self.label.setScaledContents(True)
self.label.setObjectName("label")
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(290, 60, 220, 80))
font = QtGui.QFont()
font.setPointSize(28)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(290, 140, 81, 16))
font = QtGui.QFont()
font.setPointSize(9)
self.label_3.setFont(font)
self.label_3.setObjectName("label_3")
self.label_4 = QtWidgets.QLabel(self.centralwidget)
self.label_4.setGeometry(QtCore.QRect(0, 20, 231, 211))
self.label_4.setText("")
self.label_4.setPixmap(QtGui.QPixmap("../Media/Smample Logo.png"))
self.label_4.setScaledContents(True)
self.label_4.setAlignment(QtCore.Qt.AlignCenter)
self.label_4.setObjectName("label_4")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(290, 190, 93, 28))
self.pushButton.setObjectName("pushButton")
#self.pushButton.clicked.connect(self.secondscreen)
#self.pushButton.clicked.connect(MainWindow.close)
#QTimer.singleShot (5000, self.secondscreen)
#QTimer.singleShot (5001, MainWindow.close)
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.textBrowser.setHtml(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:7.8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-family:\'MS Shell Dlg 2\';\">(c) 2020 SQU, Inc. Protected by international patents. See Squ.om/patents. App name is a registered trademark of SQU, Inc. Other product or brand names may be trademarks or registred trademarks of their respective holder.</span></p></body></html>"))
self.label_2.setText(_translate("MainWindow", "Mechanica"))
self.label_3.setText(_translate("MainWindow", "Version 1.0"))
self.pushButton.setText(_translate("MainWindow", "Start"))
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_())
You shouldn't try to edit or mimic the behavior of files generated by pyuic, as doing it leads to confusion about the object structure, and that's exactly your case.
Your Ui_MainWindow already inherits from QMainWindow, there's no use to create an instance of QMainWindow. In fact, what you're seeing is that QMainWindow, while you're setting the flag on the Ui_MainWindow instance, which you're never actually showing.
class Ui_MainWindow(QtWidgets.QMainWindow):
def __init__(self):
super().__init__()
self.setupUi(self)
# ...
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
mainWindow = Ui_MainWindow()
mainWindow.show()
sys.exit(app.exec_())
Related
How to send data to thread is running by pyqt as the code below?
I think it would be using pyqtslot, but I don't know how to use.
I'm trying to use the pyqt qthread for multithreading program.
In the code, there are two different workers instance. I try to use signal and slot for data share. but it seemed that the signal is blocked until one of the qthread is finished.
this is the code.
gui.py
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(641, 204)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.Button_start_1 = QtWidgets.QPushButton(self.centralwidget)
self.Button_start_1.setGeometry(QtCore.QRect(30, 20, 81, 41))
self.Button_start_1.setObjectName("Button_start_1")
self.Button_start_2 = QtWidgets.QPushButton(self.centralwidget)
self.Button_start_2.setGeometry(QtCore.QRect(30, 70, 81, 41))
self.Button_start_2.setObjectName("Button_start_2")
self.Button_stop_1 = QtWidgets.QPushButton(self.centralwidget)
self.Button_stop_1.setGeometry(QtCore.QRect(150, 20, 75, 41))
self.Button_stop_1.setObjectName("Button_stop_1")
self.Button_stop_2 = QtWidgets.QPushButton(self.centralwidget)
self.Button_stop_2.setGeometry(QtCore.QRect(150, 70, 75, 41))
self.Button_stop_2.setObjectName("Button_stop_2")
self.lcdNumber_1 = QtWidgets.QLCDNumber(self.centralwidget)
self.lcdNumber_1.setGeometry(QtCore.QRect(250, 20, 151, 41))
self.lcdNumber_1.setObjectName("lcdNumber_1")
self.lcdNumber_2 = QtWidgets.QLCDNumber(self.centralwidget)
self.lcdNumber_2.setGeometry(QtCore.QRect(250, 70, 151, 41))
self.lcdNumber_2.setObjectName("lcdNumber_2")
self.Button_pause_thread_1 = QtWidgets.QPushButton(self.centralwidget)
self.Button_pause_thread_1.setGeometry(QtCore.QRect(420, 20, 121, 41))
self.Button_pause_thread_1.setObjectName("Button_pause_thread_1")
self.Button_pause_thread_2 = QtWidgets.QPushButton(self.centralwidget)
self.Button_pause_thread_2.setGeometry(QtCore.QRect(420, 70, 121, 41))
self.Button_pause_thread_2.setObjectName("Button_pause_thread_2")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 641, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.Button_start_1.setText(_translate("MainWindow", "Start thread1"))
self.Button_start_2.setText(_translate("MainWindow", "Start thread2"))
self.Button_stop_1.setText(_translate("MainWindow", "Stop thread 1"))
self.Button_stop_2.setText(_translate("MainWindow", "Stop thread 1"))
self.Button_pause_thread_1.setText(_translate("MainWindow", "Pause thread 1"))
self.Button_pause_thread_2.setText(_translate("MainWindow", "Pause thread 2"))
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_())
Main.py
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow
from PyQt5.QtCore import pyqtSignal
from PyQt5 import QtCore
import time
from gui import Ui_MainWindow
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.uic = Ui_MainWindow()
self.uic.setupUi(self)
self.thread = {}
self.uic.Button_start_1.clicked.connect(self.start_worker_1)
self.uic.Button_start_2.clicked.connect(self.start_worker_2)
self.uic.Button_stop_1.clicked.connect(self.stop_worker_1)
self.uic.Button_stop_2.clicked.connect(self.stop_worker_2)
def start_worker_1(self):
self.thread[1] = ThreadClass(index=1)
self.thread[1].start()
self.thread[1].signal.connect(self.my_function)
self.uic.Button_start_1.setEnabled(False)
self.uic.Button_stop_1.setEnabled(True)
def start_worker_2(self):
self.thread[2] = ThreadClass(index=2)
self.thread[2].start()
self.thread[2].signal.connect(self.my_function)
self.uic.Button_start_2.setEnabled(False)
self.uic.Button_stop_2.setEnabled(True)
def stop_worker_1(self):
self.thread[1].stop()
self.uic.Button_stop_1.setEnabled(False)
self.uic.Button_start_1.setEnabled(True)
def stop_worker_2(self):
self.thread[2].stop()
self.uic.Button_stop_2.setEnabled(False)
self.uic.Button_start_2.setEnabled(True)
def my_function(self, counter):
m = counter
i = self.sender().index
if i == 1:
self.uic.lcdNumber_1.display(m)
if i == 2:
self.uic.lcdNumber_2.display(m)
class ThreadClass(QtCore.QThread):
signal = pyqtSignal(int)
def __init__(self, index=0):
super().__init__()
self.index = index
def run(self):
print('Starting thread...', self.index)
counter = 0
while True:
counter += 1
print(counter)
time.sleep(1)
self.signal.emit(counter)
def stop(self):
print('Stopping thread...', self.index)
self.terminate()
def get_value_from_button(self):
print("value of thread ")
if __name__ == "__main__":
app = QApplication(sys.argv)
main_win = MainWindow()
main_win.show()
sys.exit(app.exec())
I need to get data at get_value_from_button(self) function, when I press the button.
I am trying to set my webcam to a label and open it on pageload. However code does not throw any error also it does not getting bind to the label as well. Can anyone tell me how to fix this?
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'camera.ui'
#
# Created by: PyQt5 UI code generator 5.15.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again. Do not edit this file unless you know what you are doing.
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QApplication, QMainWindow,qApp
import sys
import cv2
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(800, 600)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayoutWidget = QtWidgets.QWidget(self.centralwidget)
self.gridLayoutWidget.setGeometry(QtCore.QRect(169, 59, 471, 251))
self.gridLayoutWidget.setObjectName("gridLayoutWidget")
self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.label = QtWidgets.QLabel(self.gridLayoutWidget)
self.label.setObjectName("label")
self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
self.capture = cv2.cv2.VideoCapture(0)
timer = QtCore.QTimer()
timer.setInterval(int(1000/30))
timer.timeout.connect(self.get_frame)
timer.start()
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def get_frame(self):
frame = self.capture.read()
image = QtGui.QImage(frame, *frame.shape[1::-1], QtGui.QImage.Format_RGB888).rgbSwapped()
pixmap = QtGui.QPixmap.fromImage(image)
self.label.setPixmap(pixmap)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
if __name__ == "__main__":
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
The problem is that timer is a local variable that will be destroyed so the get_frame method will not be invoked, the solution is to make it a member of the class so you must change timer to self.timer. Also the read() method returns a tuple, no the frame so you should change it to:
def get_frame(self):
ret, frame = self.capture.read()
if ret:
image = QtGui.QImage(
frame, *frame.shape[1::-1], QtGui.QImage.Format_RGB888
).rgbSwapped()
pixmap = QtGui.QPixmap.fromImage(image)
self.label.setPixmap(pixmap)
I searched in Google usually many posts are talking about how to open a new window and not indicating how to close the window. I found several posts in this website but most of them are using dialog window which is not considered in my software.
I make a UI, which contains a spin box and a button, to demonstrate my problem. I can type in a number equal or less than 5 in spin box. When I click the button, a number of new windows will show up and how many windows will show up is depending on the number in the spin box. If I change to the number in spin box then click the button, the original windows will be closed and new windows will be shown.
Fox example, first I type in "2" in spin box then click the button. Then 2 new windows will show up. If I change the number in spin box to 3 then click the button, the original 2 windows will be closed and 3 new windows will show up.
Here is my main program code:
from PyQt5.QtWidgets import QApplication, QMainWindow
from uitest_review import Ui_MainWindow # import the UI module
# set up a class for main window
class window(QMainWindow):
def __init__(self, parent=None):
super(window, self).__init__(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.ui.Open.clicked.connect(self.openwindow)
def openwindow(self):
windownum = self.ui.windownum.value()
print("open window num:", windownum)
opennewwindow = newwindow(self)
opennewwindow.show()
class newwindow(QMainWindow):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
if __name__ == "__main__":
app = QApplication([])
gui = window()
gui.show()
app.exec_()
Here is my UI code:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(816, 577)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setObjectName("gridLayout")
self.scrollArea = QtWidgets.QScrollArea(self.centralwidget)
self.scrollArea.setWidgetResizable(True)
self.scrollArea.setObjectName("scrollArea")
self.scrollAreaWidgetContents = QtWidgets.QWidget()
self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 796, 537))
self.scrollAreaWidgetContents.setObjectName(\
"scrollAreaWidgetContents")
self.verticalLayout = QtWidgets.QVBoxLayout(self.scrollAreaWidgetContents)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
spacerItem = QtWidgets.QSpacerItem(20, 10, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Minimum)
self.verticalLayout.addItem(spacerItem)
self.windownum = QtWidgets.QSpinBox(self.scrollAreaWidgetContents)
self.windownum.setMaximum(5)
self.windownum.setObjectName("windownum")
self.verticalLayout.addWidget(self.windownum)
self.groupBox = QtWidgets.QGroupBox(self.scrollAreaWidgetContents)
self.groupBox.setTitle("")
self.groupBox.setObjectName("groupBox")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.groupBox)
self.horizontalLayout.setObjectName("horizontalLayout")
spacerItem1 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout.addItem(spacerItem1)
self.Open = QtWidgets.QPushButton(self.groupBox)
font = QtGui.QFont()
font.setPointSize(14)
font.setBold(True)
font.setWeight(75)
self.Open.setFont(font)
self.Open.setObjectName("Open")
self.horizontalLayout.addWidget(self.Open)
spacerItem2 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout.addItem(spacerItem2)
self.verticalLayout.addWidget(self.groupBox)
self.scrollArea.setWidget(self.scrollAreaWidgetContents)
self.gridLayout.addWidget(self.scrollArea, 0, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.Open.setText(_translate("MainWindow", "Open"))
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 create a new class (newwindow) in my main program and I can call this class to show a new window. But I cannot figure out how to detect how many windows is opened and how to close them. Does anyone can help me? Thank you so much.
I figured out by myself.
class window(QMainWindow):
def __init__(self, parent=None):
super(window, self).__init__(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.ui.Open.clicked.connect(self.openwindow)
self.openedwin = []
def openwindow(self):
windownum = self.ui.windownum.value()
if windownum != 0:
if self.openedwin != []:
for window in self.openedwin:
window.close()
for repeat in range(windownum):
opennewwindow = newwindow(self)
# print("opennewwindow:", opennewwindow)
self.openedwin.append(opennewwindow)
opennewwindow.show()
# print("self.openedwin:", self.openedwin)
class newwindow(QMainWindow):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
if __name__ == "__main__":
app = QApplication([])
gui = window()
gui.show()
app.exec_()
I add a list self.openedwin = [] to save all window objects. I can use "window object".close() command to close the window before opening new one.
How can I compute the net price (Price * (1 - discount)) automatically whenever I enter data? I can make it work on a button press but I'd like to do it whenever data is entered.
See image below.
Thank you in advance!
At first it seems like you are using QLineEdit for the input. Because you want to input integers, I would recommend using the QSpinBox or QDoubleSpinBox, which are made for the input of integers.
I built up such a GUI like you have with QtCreator and converted it with pyuic5 -x gui.ui -o gui.py on my Raspberry Pi to Python.
You simply need to connect the value change of the SpinBox with a function that gives out the net price. For doing this, see the code below:
# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(800, 415)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(30, 40, 201, 81))
font = QtGui.QFont()
font.setPointSize(26)
self.label.setFont(font)
self.label.setObjectName("label")
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(30, 140, 201, 81))
font = QtGui.QFont()
font.setPointSize(26)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(30, 260, 201, 81))
font = QtGui.QFont()
font.setPointSize(26)
self.label_3.setFont(font)
self.label_3.setObjectName("label_3")
self.label_netprice = QtWidgets.QLabel(self.centralwidget)
self.label_netprice.setGeometry(QtCore.QRect(260, 282, 421, 41))
self.label_netprice.setStyleSheet("background-color: rgb(255, 255, 255);")
self.label_netprice.setText("")
self.label_netprice.setObjectName("label_netprice")
self.doubleSpinBox_price = QtWidgets.QDoubleSpinBox(self.centralwidget)
self.doubleSpinBox_price.setGeometry(QtCore.QRect(260, 60, 421, 41))
self.doubleSpinBox_price.setObjectName("doubleSpinBox_price")
####################################
# Link to function when value changes
self.doubleSpinBox_price.valueChanged.connect(self.Refresh)
####################################
self.doubleSpinBox_discount = QtWidgets.QDoubleSpinBox(self.centralwidget)
self.doubleSpinBox_discount.setGeometry(QtCore.QRect(260, 160, 421, 41))
self.doubleSpinBox_discount.setObjectName("doubleSpinBox_discount")
####################################
# Link to function when value changes
self.doubleSpinBox_discount.valueChanged.connect(self.Refresh)
####################################
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.label.setText(_translate("MainWindow", "Price:"))
self.label_2.setText(_translate("MainWindow", "Discount:"))
self.label_3.setText(_translate("MainWindow", "Net Price:"))
##########################################
# Function for refreshing the output label
def Refresh(self):
price = self.doubleSpinBox_price.value()
discount = self.doubleSpinBox_discount.value()
netprice = price * (1 - discount)
self.label_netprice.setText(str(netprice))
##########################################
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_())
In my code the SpinBoxes are limited at 99 but you can set this to a higher value.
Just a hint: People are more likely to help you, if you give them a short but relatable code example to work with and they don't have to build their own GUI.
I hope this helps. If you find it useful, please mark it as correct.
Best wishes,
RaspiManu
I trying to learn PyQt5 so it might a noobie question, but I search a lot and I couldn't find a solution.
I wrinting a sample code showing a countdow to a defined datetime and now it looks like in the image below:
I need to resize the image to cover the app, atm I have a window 300x200 and background image 2400x1800.
I also need the background to resize on MainWindow resize. At first glance css property background-size is not supported, border-image would strech the image.
OS: Windows 7-10 (not a choise)
Python: 3.4.3
PyQt: 5.5
Current code (not working)
from PyQt5 import QtWidgets, QtGui
from PyQt5.QtCore import QObject, pyqtSignal, QTimer
import design
import sys
from datetime import datetime, timedelta
# UI base class is inherited from design.Ui_MainWindow
class Counter(QtWidgets.QMainWindow, design.Ui_MainWindow):
def __init__(self):
super(self.__class__, self).__init__()
self.setupUi(self)
# applying background image
self.background = QtGui.QPixmap("./assets/img/trecime.jpg")
palette = QtGui.QPalette()
palette.setBrush(QtGui.QPalette.Background,QtGui.QBrush(self.background).scale(self.size()))
self.MainWindow.setPalette(palette)
# custom colors for QLCDWidgets
lcdPalette = self.dayCount.palette()
lcdPalette.setColor(lcdPalette.WindowText, QtGui.QColor(255,0,0, 200))
lcdPalette.setColor(lcdPalette.Background, QtGui.QColor(0, 0, 0, 0))
lcdPalette.setColor(lcdPalette.Light, QtGui.QColor(200, 0, 0, 120))
lcdPalette.setColor(lcdPalette.Dark, QtGui.QColor(100, 0, 0, 150))
self.dayCount.setPalette(lcdPalette)
lcdPalette.setColor(lcdPalette.WindowText, QtGui.QColor(255,255,255, 200))
lcdPalette.setColor(lcdPalette.Light, QtGui.QColor(200, 0, 0, 0))
lcdPalette.setColor(lcdPalette.Dark, QtGui.QColor(200, 0, 0, 0))
self.timeCount.setPalette(lcdPalette)
# init Qtimer
self.timer = QTimer()
self.timer.timeout.connect(self.update_timer)
self.timer.start(200)
# config final date
self.finalDatetime = datetime(2016, 11, 30, 14, 00)
def resizeEvent(self, resizeEvent):
print('resized')
def update_timer(self):
currentDatetime = datetime.today()
delta = self.finalDatetime - currentDatetime
(days, hours, minutes) = days_hours_minutes(delta)
self.dayCount.display(days)
# blinking colon
separator = ":" if delta.microseconds < 799999 else ' '
self.timeCount.display('%02d%s%02d' % (hours, separator, minutes))
def days_hours_minutes(td):
return td.days, td.seconds//3600, (td.seconds//60)%60
def main():
app = QtWidgets.QApplication(sys.argv)
counter = Counter()
counter.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
pyqt style sheet can be used for this resizing
try
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import *
class MainWindow(QMainWindow):
def __init__(self,MainWindow):
super().__init__()
self.centralWidget = QWidget()
self.setCentralWidget(self.centralWidget)
MainWindow.setObjectName("MainWindow")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.centralWidget)
self.horizontalLayout_2.setContentsMargins(11, 11, 11, 11)
self.horizontalLayout_2.setSpacing(6)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setSpacing(6)
self.horizontalLayout.setObjectName("horizontalLayout")
self.start_button = QtWidgets.QPushButton(self.centralWidget)
self.start_button.setObjectName("start_button")
self.horizontalLayout.addWidget(self.start_button)
self.stop_button = QtWidgets.QPushButton(self.centralWidget)
self.stop_button.setObjectName("stop_button")
self.horizontalLayout.addWidget(self.stop_button)
self.horizontalLayout_2.addLayout(self.horizontalLayout)
MainWindow.setCentralWidget(self.centralWidget)
self.menuBar = QtWidgets.QMenuBar(MainWindow)
self.menuBar.setGeometry(QtCore.QRect(0, 0, 400, 26))
self.menuBar.setObjectName("menuBar")
MainWindow.setMenuBar(self.menuBar)
self.mainToolBar = QtWidgets.QToolBar(MainWindow)
self.mainToolBar.setObjectName("mainToolBar")
MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.mainToolBar)
self.statusBar = QtWidgets.QStatusBar(MainWindow)
self.statusBar.setObjectName("statusBar")
MainWindow.setStatusBar(self.statusBar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.start_button.setText(_translate("MainWindow", "Start"))
self.stop_button.setText(_translate("MainWindow", "Stop"))
stylesheet = """
MainWindow {
border-image: url("The_Project_logo.png");
background-repeat: no-repeat;
background-position: center;
}
"""
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
app.setStyleSheet(stylesheet) # <---
window = MainWindow()
window.resize(640, 640)
window.show()
sys.exit(app.exec_())