Hello guys i'm working on a application using python, but i'm having a problem
how can i make a gui window without the default top border which contain the minimize maximize and close icon
using any library(TK, QT5, pygame etc)
pls help as soon as possible
this is my code and i am willing to remove the title bar and just want the frame
import sys
from PyQt5.QtCore import QPoint
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QHBoxLayout
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QWidget
class MainWindow(QWidget):
def __init__(self):
super(MainWindow, self).__init__()
self.layout = QVBoxLayout()
self.layout.addWidget(MyBar(self))
self.setLayout(self.layout)
self.layout.setContentsMargins(0,0,0,0)
self.layout.addStretch(-1)
self.setMinimumSize(800,400)
self.setWindowFlags(Qt.FramelessWindowHint)
self.pressing = False
class MyBar(QWidget):
def __init__(self, parent):
super(MyBar, self).__init__()
self.parent = parent
print(self.parent.width())
self.layout = QHBoxLayout()
self.layout.setContentsMargins(0,0,0,0)
self.title = QLabel("My Own Bar")
btn_size = 35
self.btn_close = QPushButton("x")
self.btn_close.clicked.connect(self.btn_close_clicked)
self.btn_close.setFixedSize(btn_size,btn_size)
self.btn_close.setStyleSheet("background-color: red;")
self.btn_min = QPushButton("-")
self.btn_min.clicked.connect(self.btn_min_clicked)
self.btn_min.setFixedSize(btn_size, btn_size)
self.btn_min.setStyleSheet("background-color: gray;")
self.btn_max = QPushButton("+")
self.btn_max.clicked.connect(self.btn_max_clicked)
self.btn_max.setFixedSize(btn_size, btn_size)
self.btn_max.setStyleSheet("background-color: gray;")
self.title.setFixedHeight(35)
self.title.setAlignment(Qt.AlignCenter)
self.layout.addWidget(self.title)
self.layout.addWidget(self.btn_min)
self.layout.addWidget(self.btn_max)
self.layout.addWidget(self.btn_close)
self.title.setStyleSheet("""
background-color: black;
color: white;
""")
self.setLayout(self.layout)
self.start = QPoint(0, 0)
self.pressing = False
def resizeEvent(self, QResizeEvent):
super(MyBar, self).resizeEvent(QResizeEvent)
self.title.setFixedWidth(self.parent.width())
def mousePressEvent(self, event):
self.start = self.mapToGlobal(event.pos())
self.pressing = True
def mouseMoveEvent(self, event):
if self.pressing:
self.end = self.mapToGlobal(event.pos())
self.movement = self.end-self.start
self.parent.setGeometry(self.mapToGlobal(self.movement).x(),
self.mapToGlobal(self.movement).y(),
self.parent.width(),
self.parent.height())
self.start = self.end
def mouseReleaseEvent(self, QMouseEvent):
self.pressing = False
def btn_close_clicked(self):
self.parent.close()
def btn_max_clicked(self):
self.parent.showMaximized()
def btn_min_clicked(self):
self.parent.showMinimized()
if __name__ == "__main__":
app = QApplication(sys.argv)
mw = MainWindow()
mw.show()
sys.exit(app.exec_())
Related
Force repainting does not repaint PyQt5 widget (Qlabel, QTextEdit, even QProgressBar and etc)
Tested platforms: Linux, MacOS
PyQt5 version: 5.15.7
Installed from pip
As example I created simple app that updating text in QLabel widget in for loop. Force repainting doesnt working
import sys
from time import sleep
from PyQt5.QtWidgets import (QWidget, QApplication, QPushButton, QLabel)
class Example(QWidget):
def __init__(self):
super().__init__()
self.text = QLabel('Test', self)
self.text.move(10, 10)
self.text.resize(60,20)
self.button = QPushButton('Run', self)
self.button.move(17,40)
self.button.clicked.connect(self.some_activity)
self.setGeometry(300, 300, 100, 80)
self.show()
def some_activity(self):
for i in range(100):
text = f'i = {i}'
self.text.setText(text)
# self.text.update() -> Nothing happens (it shouldnt: https://doc.qt.io/qt-5/qwidget.html#update)
self.text.repaint() # -> Nothing happens
self.repaint() # -> Nothing happens
print(f'Text updated: {text}')
sleep(0.03)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
Video demonstration: link
Just needed to use QThread to use for loop in my program
Thanks #musicamante for helping.
import sys
from time import sleep
from PyQt5 import QtCore
from PyQt5.QtWidgets import (QWidget, QApplication, QPushButton, QLabel)
class Thread(QtCore.QThread):
signal = QtCore.pyqtSignal(str)
def __init__(self, parent=None): QtCore.QThread.__init__(self, parent)
def run(self):
for i in range(100):
text = f'i = {i}'
print(f'Text updated: {text}')
self.signal.emit(text)
sleep(.3)
class Example(QWidget):
def __init__(self):
super().__init__()
self.text = QLabel('Test', self)
self.text.move(10, 10)
self.text.resize(60,20)
self.thread = Thread()
self.thread.signal.connect(self.signal, QtCore.Qt.QueuedConnection)
self.button = QPushButton('Run', self)
self.button.move(17,40)
self.button.clicked.connect(self.thread.start)
self.setGeometry(300, 300, 100, 80)
self.show()
def signal(self, text): self.text.setText(text)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
I'm trying to make pyqt5 Gui that shows a webcam live feed, records the feed at the same time, and saves it locally when closed. I managed to acheieve this using Timer(QTimer) in pyqt gui but When I try to implement it using Qthread (Which I really require) only the live feed is working.
Whenever I add Code required for recording video and run the program it says Python has Stopped Working and closes. Here is my Code:
import cv2
import sys
from PyQt5.QtWidgets import QWidget, QLabel, QApplication, QVBoxLayout
from PyQt5.QtCore import QThread, Qt, pyqtSignal, pyqtSlot
from PyQt5.QtGui import QImage, QPixmap
class Thread(QThread):
changePixmap = pyqtSignal(QImage)
def run(self):
self.cap = cv2.VideoCapture(0)
self.width = int(self.cap.get(cv2.CAP_PROP_FRAME_WIDTH))
self.height = int(self.cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
self.codec = cv2.VideoWriter_fourcc('X', 'V', 'I', 'D')
self.writer = cv2.VideoWriter('output.avi', self.codec, 30.0, (self.width, self.height))
while self.cap.isOpened():
ret, self.frame = self.cap.read()
if ret:
self.frame = cv2.flip(self.frame, 1)
rgbimage = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgbimage.shape
bytesPerLine = ch * w
convertToQtFormat = QImage(rgbimage.data, w, h, bytesPerLine, QImage.Format_RGB888)
p = convertToQtFormat.scaled(640, 480, Qt.KeepAspectRatio)
self.changePixmap.emit(p)
class MyApp(QWidget):
def __init__(self):
super(MyApp, self).__init__()
self.title = 'Camera'
self.initUI()
def initUI(self):
self.label = QLabel(self)
lay = QVBoxLayout()
lay.addWidget(self.label)
self.setLayout(lay)
self.th = Thread()
self.th.changePixmap.connect(self.setImage)
self.th.start()
self.show()
#pyqtSlot(QImage)
def setImage(self, image):
self.label.setPixmap(QPixmap.fromImage(image))
self.th.writer.write(image)
def main():
app = QApplication(sys.argv)
ex = MyApp()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
I tried placing the .write() inside the run() of Thread class as well which is showing the same error. Can you guys point out What I'm doing wrong and how to make it work. I'm new to python and pyqt.
Thanks in Advance.
You need to separate threads. First thread is for signal, second is for the record and the main thread is for GUI. Try the following code. There is a button to start/stop the record.
import sys
import cv2
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QLabel, QVBoxLayout
from PyQt5.QtGui import QImage, QPixmap
from PyQt5.QtCore import QTimer, QThread, pyqtSignal, pyqtSlot
from PyQt5 import QtWidgets, QtCore, QtGui
#https://ru.stackoverflow.com/a/1150993/396441
class Thread1(QThread):
changePixmap = pyqtSignal(QImage)
def __init__(self, *args, **kwargs):
super().__init__()
def run(self):
self.cap1 = cv2.VideoCapture(0, cv2.CAP_DSHOW)
self.cap1.set(3,480)
self.cap1.set(4,640)
self.cap1.set(5,30)
while True:
ret1, image1 = self.cap1.read()
if ret1:
im1 = cv2.cvtColor(image1, cv2.COLOR_BGR2RGB)
height1, width1, channel1 = im1.shape
step1 = channel1 * width1
qImg1 = QImage(im1.data, width1, height1, step1, QImage.Format_RGB888)
self.changePixmap.emit(qImg1)
class Thread2(QThread):
def __init__(self, *args, **kwargs):
super().__init__()
self.active = True
def run(self):
if self.active:
self.fourcc = cv2.VideoWriter_fourcc(*'XVID')
self.out1 = cv2.VideoWriter('output.avi', self.fourcc, 30, (640,480))
self.cap1 = cv2.VideoCapture(0, cv2.CAP_DSHOW)
self.cap1.set(3, 480)
self.cap1.set(4, 640)
self.cap1.set(5, 30)
while self.active:
ret1, image1 = self.cap1.read()
if ret1:
self.out1.write(image1)
self.msleep(10)
def stop(self):
self.out1.release()
class MainWindow(QWidget):
def __init__(self):
super().__init__()
self.resize(660, 520)
self.control_bt = QPushButton('START')
self.control_bt.clicked.connect(self.controlTimer)
self.image_label = QLabel()
self.saveTimer = QTimer()
self.th1 = Thread1(self)
self.th1.changePixmap.connect(self.setImage)
self.th1.start()
vlayout = QVBoxLayout(self)
vlayout.addWidget(self.image_label)
vlayout.addWidget(self.control_bt)
#QtCore.pyqtSlot(QImage)
def setImage(self, qImg1):
self.image_label.setPixmap(QPixmap.fromImage(qImg1))
def controlTimer(self):
if not self.saveTimer.isActive():
# write video
self.saveTimer.start()
self.th2 = Thread2(self)
self.th2.active = True
self.th2.start()
# update control_bt text
self.control_bt.setText("STOP")
else:
# stop writing
self.saveTimer.stop()
self.th2.active = False
self.th2.stop()
self.th2.terminate()
# update control_bt text
self.control_bt.setText("START")
if __name__ == '__main__':
app = QApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
sys.exit(app.exec_())
you placed the .write() inside the run() of Thread class is right way.
like:
...
while self.cap.isOpened():
ret, self.frame = self.cap.read()
if ret:
self.frame = cv2.flip(self.frame, 1)
rgbimage = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgbimage.shape
bytesPerLine = ch * w
convertToQtFormat = QImage(
rgbimage.data, w, h, bytesPerLine, QImage.Format_RGB888)
p = convertToQtFormat.scaled(640, 480, Qt.KeepAspectRatio)
# put your writer() here, make sure your param is frame
# not converted to QtImage format
self.writer.write(rgbimage)
self.changePixmap.emit(p)
...
I'm unsure why all aspects of my GUI are showing up apart from the spin box (the code for it is within the home function).
I've tried moving it to the init(self) function, but that doesn't work. I thought it would be intuitive for it to be within the home function as that is where all my other GUI (e.g. buttons) resides.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QAction, QMessageBox, QDoubleSpinBox
from temperature import MplWindow
from filament import MplWindow1
from highvoltage import MplWindow2
class window(QMainWindow):
def __init__(self):
super(window, self).__init__()
self.setGeometry(50, 50, 300, 300)
self.setWindowTitle('Temperature Control')
self.setWindowIcon(QIcon('adn.png'))
extractAction = QAction('&Quit', self)
extractAction.setShortcut('Ctrl+Q')
extractAction.setStatusTip('leave the app')
extractAction.triggered.connect(self.close_application)
self.statusBar()
mainMenu = self.menuBar()
fileMenu = mainMenu.addMenu('&File')
fileMenu.addAction(extractAction)
self.matplWindow = MplWindow()
self.matplWindow1 = MplWindow1()
self.matplWindow2 = MplWindow2()
self.home()
def home(self):
btn = QPushButton('quit', self)
btn.clicked.connect(self.close_application)
btn.resize(btn.sizeHint())
btn.move(200, 260)
button = QPushButton('Temperature',self)
button.clicked.connect(self.opengraph)
button.move(100,50)
button = QPushButton('Filament voltage',self)
button.clicked.connect(self.openfilament)
button.move(100,80)
button = QPushButton('High voltage',self)
button.clicked.connect(self.openhigh)
button.move(100,110)
self.doubleSpinBox = QtWidgets.QDoubleSpinBox()
self.doubleSpinBox.setGeometry(180, 110, 62, 22)
self.show()
def opengraph(self):
self.matplWindow.funAnimation()
def openfilament(self):
self.matplWindow1.funAnimation1()
def openhigh(self):
self.matplWindow2.funAnimation2()
def close_application(self):
choice = QMessageBox.question(self, 'Message',
"Are you sure to quit?", QMessageBox.Yes |
QMessageBox.No, QMessageBox.No)
if choice == QMessageBox.Yes:
sys.exit()
else:
pass
if __name__ == "__main__":
app = QApplication(sys.argv)
Gui = window()
sys.exit(app.exec_())
I worked it out - I moved the code to the init function.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QAction, QMessageBox, QDoubleSpinBox, QLabel, QVBoxLayout
from temperature import MplWindow # +++
from filament import MplWindow1
from highvoltage import MplWindow2
class window(QMainWindow):
def __init__(self):
super(window, self).__init__()
self.setGeometry(50, 50, 300, 300)
self.setWindowTitle('Temperature Control')
self.setWindowIcon(QIcon('adn.png'))
extractAction = QAction('&Quit', self)
extractAction.setShortcut('Ctrl+Q')
extractAction.setStatusTip('leave the app')
extractAction.triggered.connect(self.close_application)
self.statusBar()
mainMenu = self.menuBar()
fileMenu = mainMenu.addMenu('&File')
fileMenu.addAction(extractAction)
self.matplWindow = MplWindow() # +++
self.matplWindow1 = MplWindow1()
self.matplWindow2 = MplWindow2()
# vBoxLayout = QVBoxLayout()
self.label = QLabel("Set point Temp:", self)
self.label.move(50,150)
self.spinBox = QDoubleSpinBox(self)
self.spinBox.move(70,150)
self.home()
def home(self):
btn = QPushButton('quit', self)
btn.clicked.connect(self.close_application)
btn.resize(btn.sizeHint())
btn.move(200, 260)
button = QPushButton('Temperature',self)
button.clicked.connect(self.opengraph)
button.move(100,50)
button = QPushButton('Filament voltage',self)
button.clicked.connect(self.openfilament)
button.move(100,80)
button = QPushButton('High voltage',self)
button.clicked.connect(self.openhigh)
button.move(100,110)
self.show()
def opengraph(self):
self.matplWindow.funAnimation() # +++
def openfilament(self):
self.matplWindow1.funAnimation1()
def openhigh(self):
self.matplWindow2.funAnimation2()
def close_application(self):
choice = QMessageBox.question(self, 'Message',
"Are you sure to quit?", QMessageBox.Yes |
QMessageBox.No, QMessageBox.No)
if choice == QMessageBox.Yes:
sys.exit()
else:
pass
if __name__ == "__main__":
app = QApplication(sys.argv)
Gui = window()
sys.exit(app.exec_())
I have this code i want to convert this code from PyQt4 to PyQt5
Here is the code
import sys
from PyQt4 import QtGui, QtCore
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
self.initUI()
def initUI(self):
hbox = QtGui.QHBoxLayout(self)
left = QtGui.QFrame(self)
left.setFrameShape(QtGui.QFrame.StyledPanel)
right = QtGui.QFrame(self)
right.setFrameShape(QtGui.QFrame.StyledPanel)
splitter = QtGui.QSplitter(QtCore.Qt.Horizontal)
splitter.addWidget(left)
splitter.addWidget(right)
splitter.setStretchFactor(1, 1)
splitter.setSizes([125, 150])
hbox.addWidget(splitter)
self.setLayout(hbox)
QtGui.QApplication.setStyle(QtGui.QStyleFactory.create('Cleanlooks'))
self.setGeometry(300, 300, 300, 200)
self.setWindowTitle('QtGui.QSplitter')
self.show()
def main():
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
How can i convert this code to pyqt5
Here is image show the result of the code
Try it:
import sys
#from PyQt4 import QtGui, QtCore
from PyQt5 import Qt
class Example(Qt.QWidget):
def __init__(self):
super(Example, self).__init__()
self.initUI()
def initUI(self):
hbox = Qt.QHBoxLayout(self)
left = Qt.QFrame(self)
left.setFrameShape(Qt.QFrame.StyledPanel)
left.setStyleSheet('background-color:lightblue; color: white; font-weight: bold;')
labelLeft = Qt.QLabel(" \n left = Qt.QFrame(self)", left)
right = Qt.QFrame(self)
right.setFrameShape(Qt.QFrame.StyledPanel)
labelRight = Qt.QLabel(" \n right = Qt.QFrame(self)", right)
splitter = Qt.QSplitter(Qt.Qt.Horizontal)
splitter.addWidget(left)
splitter.addWidget(right)
splitter.setStretchFactor(1, 1)
splitter.setSizes([125, 150])
hbox.addWidget(splitter)
self.setLayout(hbox)
Qt.QApplication.setStyle(Qt.QStyleFactory.create('Cleanlooks'))
self.setGeometry(300, 300, 300, 200)
self.setWindowTitle('Qt.QSplitter')
self.show()
def main():
app = Qt.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
this is my first post here and I haven't seen it anywhere so hopefully it is ok. I am trying to change the displayed image with a keyboard click (think slideshow). This is my code so far:
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLabel
from PyQt5.QtGui import QPixmap
from PyQt5.QtCore import Qt
import os
class App(QWidget):
def __init__(self):
super().__init__()
self.title = 'Document Analysis'
self.left = 30
self.top = 30
self.width = 640
self.height = 480
self.imagenumber=0
self.initUI()
def keyPressEvent(self, event):
key=event.key()
if key==Qt.Key_Right:
self.imagenumber=self.imagenumber+1
self.showimage(self.imagenumber)
self.show()
else:
super(self).keyPressEvent(event)
def initUI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
self.showimage(0)
self.show()
def showimage(self,imagenumber):
label = QLabel(self)
directory = "C:\\Desktop\\Pictures"
imagelist = os.listdir(directory)
pixmap = QPixmap(directory + '\\' + imagelist[imagenumber])
label.setPixmap(pixmap)
self.resize(pixmap.width() + 500, pixmap.height())
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
It seems to be sort of getting somewhere, the first image displays just fine, and I know imagenumber does change, and when I stopped it from showing at first it resized the window but still didn't show the image. Any suggestions on what I am doing wrong?
This is part of a larger project which is the reason for the extra space on the side of the picture, but help would be appreciated.
You're close. Try the following...
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout
from PyQt5.QtGui import QPixmap
from PyQt5.QtCore import Qt
import os
class App(QWidget):
def __init__(self):
super().__init__()
self.title = 'Document Analysis'
self.left = 30
self.top = 30
self.width = 640
self.height = 480
self.imagenumber=0
self.initUI()
def keyPressEvent(self, event):
key=event.key()
if key==Qt.Key_Right:
self.imagenumber=self.imagenumber+1
self.showimage(self.imagenumber)
# self.show()
else:
super(self).keyPressEvent(event)
def initUI(self):
layout = QVBoxLayout()
self.setLayout(layout)
self.label = QLabel(self)
layout.addWidget(self.label)
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
self.showimage(0)
self.show()
def showimage(self,imagenumber):
# label = QLabel(self)
directory = "C:\\Desktop\\Pictures"
imagelist = os.listdir(directory)
pixmap = QPixmap(directory + '\\' + imagelist[imagenumber])
# label.setPixmap(pixmap)
self.label.setPixmap(pixmap)
self.resize(pixmap.width() + 500, pixmap.height())
# self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
Mainly, you need a persistent label. You also only need to call show() once.