The window would have two layouts: A, the main layout to show some images; B, the qlabel to show some status. When the window is started, A would be empty. A would show some images after some operations.
My question is: how to let B show in the bottom? The current code is:
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
class TimeLine(QMainWindow):
def __init__(self):
super(TimeLine, self).__init__()
widget = QWidget()
self.setCentralWidget(widget)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
widget.setLayout(layout)
statusLabel = QLabel('status bar')
statusLabel.setStyleSheet("background-color:blue")
statusLabel.setMaximumHeight(20)
layout.addWidget(statusLabel)
layout.setSpacing(0)
app = QApplication(sys.argv)
window = TimeLine()
window.show()
app.exec_()
And the result is:
The blue label shows in the middle, and I want it to be show in the bottom.
Then, I add a stretch. The layout B would show in the bottom, however, the layout A would also be squeezed. The code is:
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
class TimeLine(QMainWindow):
def __init__(self):
super(TimeLine, self).__init__()
widget = QWidget()
self.setCentralWidget(widget)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
widget.setLayout(layout)
mainLabel = QLabel()
mainLabel.setStyleSheet("background-color:yellow")
statusLabel = QLabel()
statusLabel.setStyleSheet("background-color:blue")
statusLabel.setMaximumHeight(20)
layout.addWidget(mainLabel)
layout.addStretch()
layout.addWidget(statusLabel)
layout.setSpacing(0)
app = QApplication(sys.argv)
window = TimeLine()
window.show()
app.exec_()
And the result is:
The yellow label is the main label, the gray color represents the back ground. I want the yellow label to occupy all the window except from the blue label.
Thus, what I want is:
when there is no other label, I hope the blue label show in the bottom, like:
where there is another label (yellow label), I hope the yellow label occupy all the space except from the blue label, like:
I saw your task like this:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class TimeLine(QMainWindow):
def __init__(self):
super(TimeLine, self).__init__()
widget = QWidget()
self.setCentralWidget(widget)
mainLabel = QLabel("This is a label.", alignment = Qt.AlignCenter)
mainLabel.setStyleSheet("background-color:yellow")
layout = QVBoxLayout(widget)
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(mainLabel)
self.statusBar().setStyleSheet("background-color:blue; color: #fff")
self.statusBar().showMessage('Hello {} !'.format('status bar'))
if __name__ == "__main__":
app = QApplication(sys.argv)
window = TimeLine()
window.show()
sys.exit(app.exec_())
If I understand your question correctly, you want the blue label to be aligned with the bottom edge of the main window at all times. One way to get what you want to to set the alignment of the label to Qt.AlignBottom when adding it to the layout. You also need to adjust the stretch factors of the two labels to make sure the yellow label takes up all the space above the blue label when it's present, i.e.
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
import sys
class TimeLine(QMainWindow):
def __init__(self):
super(TimeLine, self).__init__()
widget = QWidget()
self.setCentralWidget(widget)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
widget.setLayout(layout)
mainLabel = QLabel()
mainLabel.setStyleSheet("background-color:yellow")
statusLabel = QLabel('status bar')
statusLabel.setStyleSheet("background-color:blue")
statusLabel.setMaximumHeight(20)
layout.addWidget(mainLabel, stretch = 1)
layout.addWidget(statusLabel, stretch = 0, alignment = Qt.AlignBottom)
layout.setSpacing(0)
app = QApplication(sys.argv)
window = TimeLine()
window.show()
app.exec_()
Both labels:
Blue label only:
Related
I can't make scroll area scrolling.
Added into it QLabel and grid with 100 lines.
You can see code and screenshot bellow.
Does someone know how to add grid into scrolling area?
import sys
from PyQt5 import QtWidgets
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class Window(QMainWindow):
def __init__(self):
super().__init__()
self.setGeometry(100, 100, 960, 820)
self.setMinimumWidth(960)
self.setMinimumHeight(820)
self.user_interface()
def user_interface(self):
self.setFont(QFont('Times', 11))
# 100 lines grid
grid = QGridLayout()
for i in range(0, 100):
for j in range(0, 1):
grid.addWidget(QLabel("Hello There"), i, j)
grid.addWidget(QLabel("General Kenobi"), i, j + 1)
# scroll layout with QLabel and 100 lines grid
scroll_layout = QVBoxLayout()
scroll_layout.addWidget(QLabel("Scroll me down baby"))
scroll_layout.addLayout(grid)
scroll_layout.addStretch()
# Creation of scroll area and set scroll layout as its layout
scroll_area = QScrollArea()
scroll_area.setLayout(scroll_layout)
scroll_area.setWidgetResizable(False)
# main layout
main_layout = QtWidgets.QVBoxLayout()
main_layout.addWidget(QLabel("I stay on my place"))
main_layout.addWidget(scroll_area)
# application GUI setup
central_widget = QtWidgets.QWidget(self)
self.setCentralWidget(central_widget)
central_widget.setLayout(main_layout)
self.show()
def main():
app = QApplication(sys.argv)
window = Window()
sys.exit(app.exec())
if __name__ == '__main__':
main()
Here is screenshot:
Thanks guys!
Found solution for my question ->
https://www.pythonguis.com/tutorials/qscrollarea/
I was wondering if it is possible to add a QScrollArea to a QGridLayout? Below is my attempt however, it always fails with the error.
TypeError: setWidget(self, QWidget): argument 1 has unexpected type 'QGridLayout'
Is this method only possible for combo and list boxes? I am basically passing QPixmap images into a QGridLayout which needs to be scrolled. Any help much appreciated thank you.
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class PicClip(QWidget):
def __init__(self):
super().__init__()
# Load image
self.im = QPixmap("1.jpg")
self.im1 = QPixmap("1.jpg")
# Label 1
self.label = QLabel()
self.label.setPixmap(self.im)
# Label 2
self.label1 = QLabel()
self.label1.setPixmap(self.im1)
# Make Grid
self.grid = QGridLayout()
# Create widgets to grid
self.grid.addWidget(self.label, 0, 1, alignment=Qt.AlignCenter)
self.grid.addWidget(self.label1, 1, 1, alignment=Qt.AlignCenter)
# Set layout of Grid
self.setLayout(self.grid)
# Scroll
scroll = QScrollArea()
scroll.setWidget(self.grid)
scroll.setWidgetResizable(True)
# Show
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = PicClip()
sys.exit(app.exec_())
self.grid is layout and you are trying to add layout using setWidget function. setWidget function only gets QWidget
simple trick is to add wrapper QWidget and set self.grid as its layout
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class PicClip(QMainWindow): # I modified this line to show window properly
def __init__(self):
super().__init__()
# Load image
self.im = QPixmap("1.jpg")
self.im1 = QPixmap("1.jpg")
# Label 1
self.label = QLabel()
self.label.setPixmap(self.im)
# Label 2
self.label1 = QLabel()
self.label1.setPixmap(self.im1)
# Make Grid
self.grid = QGridLayout()
# Create widgets to grid
self.grid.addWidget(self.label, 0, 1, alignment=Qt.AlignCenter)
self.grid.addWidget(self.label1, 1, 1, alignment=Qt.AlignCenter)
# Set layout of Grid
self.setLayout(self.grid)
# Scroll
scroll = QScrollArea()
# add wrapper widget and set its layout
wrapper_widget = QWidget()
wrapper_widget.setLayout(self.grid)
scroll.setWidget(wrapper_widget)
scroll.setWidgetResizable(True)
# Show
self.setCentralWidget(scroll) # I modified this line to show window properly
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = PicClip()
sys.exit(app.exec_())
It's My Code. My Requirement: if the Window Grows the frame also expands as per ratio in both directions. I am trying with SetSize Policy, but nothing will happen. How to achieve it?
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class FrameExample(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Frame Example")
self.setGeometry(100,100,600,600)
self.frame = QFrame()
self.frame.setFixedSize(200,200)
# self.frame.setSizePolicy(QSizePolicy.Minimum,QSizePolicy.Fixed)
self.frame.setStyleSheet("background-color:skyblue")
self.frame1 = QFrame()
self.frame1.setGeometry(QRect(10,10,600,600))
self.frame1.resize(600,600)
self.frame1.setStyleSheet("background-color:lightgreen")
layout = QVBoxLayout()
layout.addWidget(self.frame)
layout.addWidget(self.frame1)
self.setLayout(layout)
if __name__=="__main__":
app = QApplication(sys.argv)
countrywin =FrameExample()
countrywin.show()
sys.exit(app.exec_())
From the comments, it appears you want the top frame to get a third of the width (i.e. 200/600 == 1/3), with the height remaining fixed - but it should not resize smaller than the minimum in either direction. Meanwhile, the bottom frame should just take up whatever space is left over.
This can be achieved by firstly setting the minimum-size and an appropriate size-policy on the top frame. Its proportions can then be controlled by putting it in a horizontal layout and adding stretchers with appropriate stretch factors (depending on how the frame should be aligned).
Here is a working example based on your code:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class FrameExample(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Frame Example")
self.setGeometry(100, 100, 600, 600)
self.frame = QFrame()
self.frame.setStyleSheet("background-color:skyblue")
self.frame.setMinimumSize(QSize(200, 200))
self.frame.setSizePolicy(
QSizePolicy.MinimumExpanding, QSizePolicy.Fixed)
hbox = QHBoxLayout()
# align left
hbox.addWidget(self.frame, 1)
hbox.addStretch(2)
# align centre
# hbox.addStretch()
# hbox.addWidget(self.frame)
# hbox.addStretch()
self.frame1 = QFrame()
self.frame1.setStyleSheet("background-color:lightgreen")
layout = QVBoxLayout()
layout.addLayout(hbox)
layout.addWidget(self.frame1)
self.setLayout(layout)
if __name__=="__main__":
app = QApplication(sys.argv)
countrywin =FrameExample()
countrywin.show()
sys.exit(app.exec_())
I have QGridLayout in which I insert QLCDNumber as follows:
self.mainLayout.addWidget(display, 0, 0, 1 , 5)
Everything is quite fine but the digit (0 by default) is 'moving' from center to right while window scaling. Can someone give me a hint how to prevent QLCDNumber from scalling and to align text inside it to the right?
Try it:
import sys
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
class Window(QMainWindow):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.lcd = QLCDNumber()
self.lcd.setFixedSize(150, 70) # Set the size you want
self.lcd.display(12345)
centralWidget = QWidget()
self.setCentralWidget(centralWidget)
self.mainLayout = QGridLayout(centralWidget)
self.mainLayout.addWidget(self.lcd, 0, 0, Qt.AlignRight) # Set the alignment option
self.mainLayout.addWidget(QTextEdit("TextEdit..."), 1,0)
self.mainLayout.addWidget(QPushButton("Button"), 2,0, Qt.AlignCenter)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Window()
ex.show()
sys.exit(app.exec_())
I would like to render some layouts - that groups some widgets - over a background layout that contains an image widget.
Let me explain myself with an image. The following image shows the desired output:
However, all I haven't find the way to overlay the two image widgets, and they show like this:
And this is the Python code I wrote:
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5 import QtCore, Qt
import sys
class ExampleWindow(QMainWindow):
def __init__(self, windowsize):
super().__init__()
self.windowsize = windowsize
self.initUI()
def initUI(self):
self.setGeometry(0, 0, self.windowsize.width(), self.windowsize.height())
self.setMaximumSize(self.windowsize.width(), self.windowsize.height())
self.setMinimumSize(self.windowsize.width(), self.windowsize.height())
self.setWindowFlags(QtCore.Qt.CustomizeWindowHint | QtCore.Qt.FramelessWindowHint)
widget = QWidget()
self.setCentralWidget(widget)
# Picture 1's widget
pixmap = QPixmap('picture_1.jpg')
pixmap = pixmap.scaledToWidth(self.windowsize.width())
self.image = QLabel()
self.image.setPixmap(pixmap)
left_box = QVBoxLayout()
left_box.setContentsMargins(0,0,0,0)
left_box.setSpacing(0)
left_box.setAlignment(Qt.Qt.AlignLeft)
left_box.addWidget(self.image, 0, Qt.Qt.AlignLeft | Qt.Qt.AlignTop)
# Picture 2's widget
pixmap = QPixmap('picture_2.jpg')
pixmap = pixmap.scaledToWidth(400)
self.image2 = QLabel()
self.image2.setPixmap(pixmap)
right_box = QVBoxLayout()
right_box.setContentsMargins(0, 0, 0, 0)
right_box.setSpacing(0)
right_box.setAlignment(Qt.Qt.AlignLeft)
right_box.addWidget(self.image2, 0, Qt.Qt.AlignLeft | Qt.Qt.AlignBottom)
layout_box = QHBoxLayout()
layout_box.addLayout(left_box)
layout_box.addLayout(right_box)
widget.setLayout(layout_box)
if __name__ == '__main__':
app = QApplication(sys.argv)
screensize = app.desktop().availableGeometry()
ex = ExampleWindow(screensize)
ex.show()
sys.exit(app.exec_())
Could you please help me to modify my code in order to get the widgets overlaid as shown on first image?
Layouts are elements that manage the geometry of widgets, in your case both layouts try to occupy the largest available space. For a widget to be part of another widget there are 2 possibilities, the first is to use a layout, and the second is that the main widget is the father of the new widget, in the case of the first image we will use the first one, and for the second one we will use the second method.
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
class ExampleWindow(QMainWindow):
def __init__(self, windowsize):
super().__init__()
self.windowsize = windowsize
self.initUI()
def initUI(self):
self.setFixedSize(self.windowsize)
self.setWindowFlags(Qt.CustomizeWindowHint | Qt.FramelessWindowHint)
widget = QWidget()
self.setCentralWidget(widget)
pixmap1 = QPixmap('picture_1.jpg')
pixmap1 = pixmap1.scaledToWidth(self.windowsize.width())
self.image = QLabel()
self.image.setPixmap(pixmap1)
layout_box = QHBoxLayout(widget)
layout_box.setContentsMargins(0, 0, 0, 0)
layout_box.addWidget(self.image)
pixmap2 = QPixmap('picture_2.jpg')
self.image2 = QLabel(widget)
self.image2.setPixmap(pixmap2)
self.image2.setFixedSize(pixmap2.size())
p = self.geometry().bottomRight() - self.image2.geometry().bottomRight() - QPoint(100, 100)
self.image2.move(p)
if __name__ == '__main__':
app = QApplication(sys.argv)
screensize = app.desktop().availableGeometry().size()
ex = ExampleWindow(screensize)
ex.show()
sys.exit(app.exec_())