If you select 'ice cream' in the combobox, 'chocolate', 'strawberry' and 'vanilla' buttons are created, and when you select 'fruit' in the combobox, 'apple' and 'persimmon' buttons are created.
I want the pushbutton to change in real time according to the combobox selection.
If you create a button directly with icecream_list or fruit_list, the button is created normally. However, if a button is created by defining a buttonlist through the combo box, the button is not created.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import pandas as pd
combobox1 = pd.DataFrame(({"name":['icecream','fruit']}))
buttonlist = pd.DataFrame({"name":[]})
icecream_list = pd.DataFrame({"name":['chocolate','strawberry','vanilla']})
fruit_list = pd.DataFrame({"name":['apple','persimmon']})
class MyApp1(QWidget):
def __init__(self):
super().__init__()
self.addbutton = addbutton()
self.initUI()
def initUI(self):
mainwin = QHBoxLayout()
comboboxSubject = QComboBox(self)
comboboxSubject.setFixedHeight(15)
for i in range(len(combobox1)):
combobox_name = combobox1.loc[i,'name']
comboboxSubject.addItem(combobox_name)
comboboxSubject.activated[str].connect(self.selectcombobox)
buttonLayout = QVBoxLayout()
buttonLayout.addWidget(self.addbutton)
buttonwin = QFrame()
buttonwin.setLayout(buttonLayout)
splitter = QSplitter(Qt.Vertical)
splitter.addWidget(comboboxSubject)
splitter.addWidget(buttonwin)
mainwin.addWidget(splitter)
self.setLayout(mainwin)
self.setWindowTitle('combobox')
self.move(0, 100)
self.resize(1200, 800)
self.showMaximized()
def selectcombobox(self, text):
global buttonlist
if text == 'icecream':
buttonlist = icecream_list
else:
buttonlist = fruit_list
class addbutton(QWidget):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
for i in range(len(buttonlist)):
buttonlist_1 = QPushButton(buttonlist.iloc[i,0], self)
buttonlist_1.resize(25,25)
buttonlist_1.move(50*i,50)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = MyApp1()
sys.exit(app.exec_())
ex1
ex2
Related
What I want to do is to open a new Countrypage sub-window by clicking on the "New" button which is in Countrypage itself.
For example, if I click the "New" button in a CountryPage window (window title: "Country page"), one more new Countrypage window will be opened in the MDI area (window title: "Country Page 1"). Now if we click the "New" button in "Country Page 1", one more new window will open in the MDI area (window title: "Country page 2") and so on - and I want to close the windows one by one by pressing the corresponding "Close" button in Countrypage. New window are opened only by pressing a "New" button.
And if we close the last opened window by pressing the "Close" button, the text item in the "Country" text-box will be automatically updated in the previous window's "Country" text-box and so on.
Main Script :
import sys,os
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from sample_countrypage import Countrypage
class MainPage(QMainWindow):
count = 0
def __init__(self):
super().__init__()
self.mdi = QMdiArea()
self.mdi.setFixedSize(1000,400)
self.mdi.setHorizontalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.mdi.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.setWindowTitle(" Sample Programme")
self.setGeometry(100,100,1600,600)
self.Ui()
self.show()
def Ui(self):
self.btn1=QPushButton("Country")
self.btn1.setFixedSize(100, 30)
self.btn1.clicked.connect(self.countrypage)
self.left_layout = QVBoxLayout()
self.right_layout = QHBoxLayout()
self.main_layout = QHBoxLayout()
self.left_layout.setContentsMargins(3,5,5,3)
self.left_layout.addWidget(self.btn1)
self.left_layout.addStretch()
self.right_layout.addWidget(self.mdi)
self.main_layout.setSpacing(5)
self.main_layout.setContentsMargins(0,0,0,0)
self.main_layout.addLayout(self.left_layout)
self.main_layout.addLayout(self.right_layout)
self.main_layout.addStretch()
widget = QWidget()
widget.setLayout(self.main_layout)
self.setCentralWidget(widget)
self.subwindow1 = QMdiSubWindow()
self.subwindow1.setObjectName("SubWindow_1")
# self.subwindow1.setWindowFlag(Qt.FramelessWindowHint)
print(Countrypage.btn2click)
def countrypage(self):
self.countrywindow = Countrypage()
self.subwindow1.setWidget(self.countrywindow)
self.subwindow1.setWindowTitle("Create Country")
self.subwindow1.setFixedWidth(300)
self.mdi.addSubWindow(self.subwindow1)
self.subwindow1.show()
self.mdi.cascadeSubWindows()
self.countrywindow.closeRequsted.connect(self.subwindow1close)
def subwindow1close(self):
print("close activated from mdi programme")
self.subwindow1.close()
if __name__ == "__main__":
app = QApplication(sys.argv)
mainwindow = MainPage()
app.setStyle("Windows")
mainwindow.show()
sys.exit(app.exec_())
Countrypage.py
import sys,os
from PyQt5.QtWidgets import QWidget,QApplication,QPushButton,QLineEdit,QFormLayout,QVBoxLayout,QHBoxLayout
from PyQt5.QtCore import pyqtSignal
class Countrypage(QWidget):
closeRequsted = pyqtSignal()
def __init__(self):
super().__init__()
self.btn1 = QPushButton("close")
self.btn2 = QPushButton("New")
self.btn1.clicked.connect(self.result)
self.btn2.clicked.connect(self.btn2click)
self.tb_country = QLineEdit()
self.tb_continent =QLineEdit()
self.form_layout = QFormLayout()
self.form_layout.addRow("Country",self.tb_country)
self.form_layout.addRow("continent",self.tb_continent)
self.form_layout.addRow("",self.btn2)
self.form_layout.addRow("",self.btn1)
self.setLayout(self.form_layout)
def result(self):
self.closeRequsted.emit()
def btn2click(self):
btn2text = (self.btn2.text())
print(btn2text)
if __name__=="__main__":
app = QApplication(sys.argv)
countrywin = Countrypage()
countrywin.show()
sys.exit(app.exec_())
The adding and closing of sub-windows is best handled by the main-window. The CountryPage class doesn't need to know anything about the sub-windows. The new/close buttons can be directly connected to methods of the main-window. This makes it easier to manage the sub-windows via the functions of the mdi-area.
Below is a re-write of your example which should do what you asked for:
Main Script:
import sys, os
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class MainPage(QMainWindow):
def __init__(self):
super().__init__()
self.mdi = QMdiArea()
self.mdi.setFixedSize(1000, 400)
self.mdi.setHorizontalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.mdi.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.setWindowTitle("Sample Programme")
self.setGeometry(100, 100, 1600, 600)
self.Ui()
def Ui(self):
self.btn1 = QPushButton("Country")
self.btn1.setFixedSize(100, 30)
self.btn1.clicked.connect(self.countrypage)
self.left_layout = QVBoxLayout()
self.right_layout = QHBoxLayout()
self.main_layout = QHBoxLayout()
self.left_layout.setContentsMargins(3, 5, 5, 3)
self.left_layout.addWidget(self.btn1)
self.left_layout.addStretch()
self.right_layout.addWidget(self.mdi)
self.main_layout.setSpacing(5)
self.main_layout.setContentsMargins(0, 0, 0, 0)
self.main_layout.addLayout(self.left_layout)
self.main_layout.addLayout(self.right_layout)
self.main_layout.addStretch()
widget = QWidget()
widget.setLayout(self.main_layout)
self.setCentralWidget(widget)
def countrypage(self):
page = Countrypage()
subwindow = self.mdi.addSubWindow(page)
subwindow.setWindowTitle("Create Country")
subwindow.setFixedWidth(300)
page.btn_close.clicked.connect(self.subwindowclose)
page.btn_new.clicked.connect(self.countrypage)
subwindow.show()
self.mdi.cascadeSubWindows()
def subwindowclose(self):
print("close activated from mdi programme")
current = self.mdi.activeSubWindow()
if current is not None:
self.mdi.activatePreviousSubWindow()
previous = self.mdi.activeSubWindow()
if previous is not None:
previous.widget().update_fields(current.widget())
current.close()
if __name__ == "__main__":
app = QApplication(sys.argv)
mainwindow = MainPage()
app.setStyle("Windows")
mainwindow.show()
sys.exit(app.exec_())
Countrypage.py:
import sys,os
from PyQt5.QtWidgets import QWidget,QApplication,QPushButton,QLineEdit,QFormLayout,QVBoxLayout,QHBoxLayout
from PyQt5.QtCore import pyqtSignal
class Countrypage(QWidget):
def __init__(self):
super().__init__()
self.btn_close = QPushButton("Close")
self.btn_new = QPushButton("New")
self.tb_country = QLineEdit()
self.tb_continent = QLineEdit()
self.form_layout = QFormLayout()
self.form_layout.addRow("Country", self.tb_country)
self.form_layout.addRow("Continent", self.tb_continent)
self.form_layout.addRow("", self.btn_close)
self.form_layout.addRow("", self.btn_new)
self.setLayout(self.form_layout)
def update_fields(self, other):
if isinstance(other, Countrypage):
self.tb_country.setText(other.tb_country.text())
self.tb_continent.setText(other.tb_continent.text())
else:
raise TypeError('invalid page type')
I know this question has been asked many times but every time i see different case .
1st problem:
I can't open new window (Window2) having grid layout.
I am trying to open a new window (Window2) in pyqt , this window(Window2) has grid layout .
To make grid layout work , Window2 has parent(QWidget)
and to make it open Window2 has another parent(QMainWindow)
but those two parents conflict each other means:
on having QWidget only as a parent ,Window2 doesn't open at all
on having QMainWindow only as a parent ,Window2 opens but with no grid layout
on having both as parents ,Window2 opens but with no grid layout
and i don't know how to open the window correctly while still having the grid layout
Edit: i have found question about multiple inheritance but i couldn't understand how it works Multiple inheritance
2nd problem:
i am having a global variable numberofholes which value is changed in the class "Window" and is used then in the class "Window2"
so this variable is changed in class"Window" correctly , but is either not defined or its value is not changed in the class "Window2"
so how is the value being global not defined in the class"Window2"
Part of the Code:
import sys
from PyQt5 import QtWidgets, QtGui, QtCore
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
#######global variables#####################################
global memorysize
global numberofholes
####################################################################
class Window(QWidget):
def __init__(self,parent=None):
super(Window,self).__init__(parent)
self.setWindowTitle("Memory")
self.setGeometry(50,50,500,300)
self.home()
def home(self):
self.grid=QGridLayout()
self.setLayout(self.grid)
self.memory=QLabel(self)
self.memory.setText("Total Memory size")
self.grid.addWidget(self.memory,0,0)
self.memoryinput=QLineEdit(self)
self.grid.addWidget(self.memoryinput,0,20)
self.holes=QLabel(self)
self.holes.setText("Number of holes")
self.grid.addWidget(self.holes,5,0)
self.inputholes=QLineEdit(self)
self.grid.addWidget(self.inputholes,5,20)
self.submit=QPushButton("OK",self)
self.grid.addWidget(self.submit,10,0)
#################Action on clicking submit###########################
self.submit.clicked.connect(self.getholes)
def getholes(self):
memorysize=float(self.memoryinput.text())
numberofholes=int(self.inputholes.text())
self.close()
self.window2=Window2(self)
##############second window for holes input##########################
class Window2(QMainWindow,QWidget):
def __init__(self,parent=None):
super().__init__(parent)
self.setWindowTitle("Memory")
self.setGeometry(50,50,500,300)
self.home()
self.show()
def home(self):
self.grid=QGridLayout()
self.setLayout(self.grid)
#print(numberofholes)
for n in range (numberofholes):
self.start_add=QLabel(self)
self.start_add.setText("Starting Address")
self.inputstart=QLineEdit(self)
self.size=QLabel(self)
self.size.setText("Size")
self.inputsize=QLineEdit(self)
self.grid.addWidget(self.start_add,2*n+1,0)
self.grid.addWidget(self.inputstart,2*n+1,1)
self.grid.addWidget(self.size,2*n+1,2)
self.grid.addWidget(self.inputsize,2*n+1,3)
def main():
app = QApplication(sys.argv)
main = Window()
main.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
Try it:
import sys
from PyQt5 import QtWidgets, QtGui, QtCore
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
### global variables
# global memorysize # ---
# global numberofholes # ---
###
class Window(QWidget):
def __init__(self,parent=None):
super(Window,self).__init__(parent)
self.setWindowTitle("Memory 1")
self.setGeometry(50, 50, 500, 300)
self.home()
def home(self):
self.grid = QGridLayout()
self.setLayout(self.grid)
self.memory = QLabel(self)
self.memory.setText("Total Memory size")
self.grid.addWidget(self.memory, 0, 0)
self.memoryinput = QLineEdit(self)
self.grid.addWidget(self.memoryinput, 0, 20)
self.holes = QLabel(self)
self.holes.setText("Number of holes")
self.grid.addWidget(self.holes, 5, 0)
self.inputholes = QLineEdit(self)
self.grid.addWidget(self.inputholes, 5, 20)
self.submit = QPushButton("OK", self)
self.grid.addWidget(self.submit, 10, 0)
# Action on clicking submit
self.submit.clicked.connect(self.getholes)
def getholes(self):
memorysize = float(self.memoryinput.text())
numberofholes = int(self.inputholes.text())
self.hide() # --- close()
self.window2 = Window2(memorysize, numberofholes) # --- self
self.window2.show()
# second window for holes input
class Window2(QWidget): # --- QMainWindow,
def __init__(self, memorysize, numberofholes, parent=None):
super().__init__(parent)
self.memorysize, self.numberofholes = memorysize, numberofholes
print("memorysize=`{}`,\nnumberofholes=`{}`".format(self.memorysize, self.numberofholes))
self.setWindowTitle("Memory 2")
self.setGeometry(50,50,500,300)
self.home()
self.show()
def home(self):
self.grid = QGridLayout()
self.setLayout(self.grid)
print(self.numberofholes)
for n in range (2):
self.start_add = QLabel(self)
self.start_add.setText("Starting Address")
self.inputstart = QLineEdit(self)
self.size = QLabel(self)
self.size.setText("Size")
self.inputsize = QLineEdit(self)
self.grid.addWidget(self.start_add, 2*n+1, 0)
self.grid.addWidget(self.inputstart,2*n+1, 1)
self.grid.addWidget(self.size, 2*n+1, 2)
self.grid.addWidget(self.inputsize, 2*n+1, 3)
if __name__ == '__main__':
app = QApplication(sys.argv)
main = Window()
main.show()
sys.exit(app.exec_())
The code below creates a dialog window with three widgets: QLabel, QComboBox and QButton.
I want QLabel and QComboBox to be sitting on a same line. That is why both of these widgets are assigned to the same horizontal layout.
Resizing the dialog creates a huge empty space between the Label and ComboBox. How to assure that the left side of the Combo sticks to the right side of Label when dialog is resizing?
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
app = QApplication([])
class Dialog(QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QVBoxLayout())
h_layout = QHBoxLayout()
self.layout().addLayout(h_layout)
label = QLabel(self)
label.setText('Month:')
combo = QComboBox(self)
h_layout.addWidget(label)
h_layout.addWidget(combo)
button = QPushButton('Ok')
self.layout().addWidget(button)
self.resize(200, 50)
self.show()
dialog = Dialog()
app.exec_()
You have to establish the size policy through QSizePolicy, in your case you must set the policy QSizePolicy::Expanding in the horizontal component of the QComboBox:
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
app = QApplication(sys.argv)
class Dialog(QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QVBoxLayout())
h_layout = QHBoxLayout()
self.layout().addLayout(h_layout)
label = QLabel(self)
label.setText('Month:')
combo = QComboBox(self)
policy = combo.sizePolicy()
policy.setHorizontalPolicy(QSizePolicy.Expanding)
combo.setSizePolicy(policy)
h_layout.addWidget(label)
h_layout.addWidget(combo)
button = QPushButton('Ok')
self.layout().addWidget(button)
self.resize(200, 50)
self.show()
dialog = Dialog()
sys.exit(app.exec_())
Shorter and better solution is add parameter stretch=1 to addWidget() function:
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
app = QApplication([])
class Dialog(QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QVBoxLayout())
h_layout = QHBoxLayout()
self.layout().addLayout(h_layout)
label = QLabel(self)
label.setText('Month:')
combo = QComboBox(self)
h_layout.addWidget(label)
h_layout.addWidget(combo, stretch=1)
button = QPushButton('Ok')
self.layout().addWidget(button)
self.resize(200, 50)
self.show()
dialog = Dialog()
app.exec_()
I would like to set a QListWidget in PyQt5 to check or uncheck the check boxes when I swipe.
Here is my interface:
And my code:
import sys
from PyQt5.QtCore import QDate, QSize, Qt
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class VerifyDialog(QDialog):
def __init__(self, parent=None):
super(VerifyDialog, self).__init__(parent)
self.listWidget = QListWidget()
for i in range(100):
item = QListWidgetItem("Item %i" % i)
# could be Qt.Unchecked; setting it makes the check appear
item.setCheckState(Qt.Checked)
self.listWidget.addItem(item)
runButton = QPushButton("Run")
runButton.clicked.connect(self.exec)
cancelButton = QPushButton("Cancel")
cancelButton.clicked.connect(self.close)
horizontalLayout = QHBoxLayout()
horizontalLayout.addWidget(self.listWidget, 1)
buttonsLayout = QHBoxLayout()
buttonsLayout.addStretch(1)
buttonsLayout.addWidget(runButton)
buttonsLayout.addWidget(cancelButton)
mainLayout = QVBoxLayout()
mainLayout.addLayout(horizontalLayout)
mainLayout.addSpacing(12)
mainLayout.addLayout(buttonsLayout)
self.setLayout(mainLayout)
self.setWindowTitle("Config Dialog")
self.show()
if __name__=="__main__":
app = QApplication(sys.argv)
dialog = VerifyDialog()
sys.exit(app.exec_())
I want to click on Item 4 and have it uncheck (it's easier than clicking the box), and then I want to drag down and have lots of other items uncheck.
You must use the itemEntered signal that sends you the object under the mouse.
self.listWidget.itemEntered.connect(lambda item: item.setCheckState(Qt.Checked if item.checkState()==Qt.Unchecked else Qt.Unchecked))
Complete code:
import sys
from PyQt5.QtCore import QDate, QSize, Qt
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class VerifyDialog(QDialog):
def __init__(self, parent=None):
super(VerifyDialog, self).__init__(parent)
self.listWidget = QListWidget()
self.listWidget.itemEntered.connect(lambda item: item.setCheckState(Qt.Checked if item.checkState()==Qt.Unchecked else Qt.Unchecked))
for i in range(100):
item = QListWidgetItem("Item %i" % i)
# could be Qt.Unchecked; setting it makes the check appear
item.setCheckState(Qt.Checked)
self.listWidget.addItem(item)
runButton = QPushButton("Run")
runButton.clicked.connect(self.exec)
cancelButton = QPushButton("Cancel")
cancelButton.clicked.connect(self.close)
horizontalLayout = QHBoxLayout()
horizontalLayout.addWidget(self.listWidget, 1)
buttonsLayout = QHBoxLayout()
buttonsLayout.addStretch(1)
buttonsLayout.addWidget(runButton)
buttonsLayout.addWidget(cancelButton)
mainLayout = QVBoxLayout()
mainLayout.addLayout(horizontalLayout)
mainLayout.addSpacing(12)
mainLayout.addLayout(buttonsLayout)
self.setLayout(mainLayout)
self.setWindowTitle("Config Dialog")
self.show()
if __name__=="__main__":
app = QApplication(sys.argv)
dialog = VerifyDialog()
sys.exit(app.exec_())
I'm trying to create a Application form by PySide, and i follow some tutorial , but i have a problem that is a space between QLabel and QCombobox.
This is my code
import sys
from PySide import QtCore, QtGui
from PySide.QtGui import *
from PySide.QtCore import *
class Window(QtGui.QWidget):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
self.setMinimumHeight(660)
self.setMinimumWidth(700)
self.setMaximumHeight(660)
self.setMaximumWidth(900)
grid = QtGui.QGridLayout()
grid.addWidget(self.First(), 0,0,2,0)
self.setLayout(grid)
self.setWindowTitle("Library")
self.resize(700, 660)
def First(self):
groupBox = QtGui.QFrame()
groupBox.setMaximumWidth(230)
groupBox.setMaximumHeight(700)
lbFile = QtGui.QLabel("File :",self)
lbFolders = QtGui.QLabel("Folders :",self)
cbFile = QtGui.QComboBox(self)
cbFile.addItem("File 1")
cbFile.addItem("File 2")
lvFolders = QtGui.QListView(self)
lvFolders.setMaximumWidth(220)
lvFolders.setMaximumHeight(500)
vbox = QtGui.QGridLayout()
vbox.addWidget(lbFile,0,0)
vbox.addWidget(cbFile,0,1)
vbox.addWidget(lbFolders,2,0)
vbox.addWidget(lvFolders,3,0,1,2)
groupBox.setLayout(vbox)
return groupBox
app = QApplication.instance()
if app is None:
app = QApplication(sys.argv)
clock = Window()
clock.show()
app.exec_()
and this is my Form :
I dont know how to delete the space between QLabel "File" and QCombobox "File 1"
Adjust the stretch factor for the second column of the layout, and possibly also make the folders label span both columns:
vbox = QtGui.QGridLayout()
vbox.addWidget(lbFile,0,0)
vbox.addWidget(cbFile,0,1)
vbox.addWidget(lbFolders,2,0,1,2)
vbox.addWidget(lvFolders,3,0,1,2)
vbox.setColumnStretch(1, 1)