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widgets placement in tabs - python

So I have this code:
from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton, QWidget, QAction, QTabWidget, QVBoxLayout, QHBoxLayout, QComboBox, QLabel
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot
from lang import getLang
import sys, os, configparser
config = configparser.ConfigParser()
config.read("Settings.ini")
# Config get setting and change setting
#print(config.get("Main", "language"))
#config.set("Main", "language", "danish")
#with open("Settings.ini", "w") as cfg_file:
#config.write(cfg_file)
class App(QMainWindow):
def __init__(self):
super().__init__()
# Window Settings
self.x, self.y, self.w, self.h = 0, 0, 300, 200
self.setGeometry(self.x, self.y, self.w, self.h)
self.window = MainWindow(self)
self.setCentralWidget(self.window)
self.setWindowTitle("Window title") # Window Title
self.show()
class MainWindow(QWidget):
def __init__(self, parent):
super(QWidget, self).__init__(parent)
layout = QVBoxLayout(self)
# Run this after settings
self.lang = getLang(config.get("Main", "language"))
# Initialize tabs
tab_holder = QTabWidget() # Create tab holder
tab_1 = QWidget() # Tab one
tab_2 = QWidget() # Tab two
# Add tabs
tab_holder.addTab(tab_1, self.lang["tab_1_title"]) # Add "tab1" to the tabs holder "tabs"
tab_holder.addTab(tab_2, self.lang["tab_2_title"]) # Add "tab2" to the tabs holder "tabs"
# Create first tab
tab_1.layout = QVBoxLayout(self)
tab_2.layout = QVBoxLayout(self)
# Buttons
button_start = QPushButton(self.lang["btn_start"])
button_stop = QPushButton(self.lang["btn_stop"])
button_test = QPushButton(self.lang["btn_test"])
# Button Extra
button_start.setToolTip("This is a tooltip for the button!") # Message to show when mouse hover
button_start.clicked.connect(self.on_click)
button_stop.clicked.connect(self.on_click)
button_test.clicked.connect(self.on_click)
#button_start.setEnabled(False)
# comboBox
label_language = QLabel("Language")
combo_language = QComboBox(self)
combo_language.addItem(self.lang["language_danish"])
combo_language.addItem(self.lang["language_english"])
# Move widgets
combo_language.move(50, 150)
label_language.move(50, 50)
# Tab Binding
self.AddToTab(tab_1, button_start)
self.AddToTab(tab_1, button_stop)
self.AddToTab(tab_2, label_language)
self.AddToTab(tab_2, combo_language)
# Add tabs to widget
tab_1.setLayout(tab_1.layout)
tab_2.setLayout(tab_2.layout)
layout.addWidget(tab_holder)
self.setLayout(layout)
#pyqtSlot()
def on_click(self):
button = self.sender().text()
if button == self.lang["btn_start"]:
print("Dank")
elif button == self.lang["btn_stop"]:
print("Not dank")
def AddToTab(self, tab, obj):
tab.layout.addWidget(obj)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
Currently it creates a window that contains 2 buttons on tab one. A "Start" and "Stop" button with no actual function yet other than printing text.
On tab 2 I have a label saying "Language:" and a dropdown menu that contains "Danish" and "English".
The problem I have with this, is that it's placement is really really weird and annoying as shown here:
I'm not sure how to change the placement as I can't just use .move on the text label, buttons and dropdown menu since they are placed in tabs.
For example, on tab two I would like the label "Language:" to be right to the left of the dropdown menu.

The problem is caused because you are using QVBoxLayout to set the widgets inside each tab. The task of the layout is to manage the position and size of the widgets so you can not use move(), besides it is not necessary.
The solution is that you create a custom layout for each tab, but keeping an order will create a custom widget for each tab, in the case of the first tab I'll continue using QVBoxlayout but add a stretch so that the widget stays stuck in the top position. In the second case I will combine a QVBoxLayout with a QHBoxLayout, the QHBoxLayout will use it to place the QLabel and the QComboBox and the QVBoxLayout will use it to push the widgets to the top position.
Implementing the above, I have omitted the lang for obvious reasons, we get the following:
from PyQt5 import QtCore, QtGui, QtWidgets
import sys, os, configparser
config = configparser.ConfigParser()
config.read("Settings.ini")
# Config get setting and change setting
#print(config.get("Main", "language"))
#config.set("Main", "language", "danish")
#with open("Settings.ini", "w") as cfg_file:
#config.write(cfg_file)
class App(QtWidgets.QMainWindow):
def __init__(self):
super().__init__()
# Window Settings
self.x, self.y, self.w, self.h = 0, 0, 300, 200
self.setGeometry(self.x, self.y, self.w, self.h)
self.window = MainWindow(self)
self.setCentralWidget(self.window)
self.setWindowTitle("Window title") # Window Title
self.show()
class GeneralWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(GeneralWidget, self).__init__(parent)
lay = QtWidgets.QVBoxLayout(self)
# Buttons
button_start = QtWidgets.QPushButton("start") #self.lang["btn_start"])
button_stop = QtWidgets.QPushButton("stop") #self.lang["btn_stop"])
# Button Extra
button_start.setToolTip("This is a tooltip for the button!") # Message to show when mouse hover
button_start.clicked.connect(self.on_click)
button_stop.clicked.connect(self.on_click)
lay.addWidget(button_start)
lay.addWidget(button_stop)
lay.addStretch()
#QtCore.pyqtSlot()
def on_click(self):
button = self.sender().text()
if button == self.lang["btn_start"]:
print("Dank")
elif button == self.lang["btn_stop"]:
print("Not dank")
class OptionsWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(OptionsWidget, self).__init__(parent)
lay = QtWidgets.QVBoxLayout(self)
hlay = QtWidgets.QHBoxLayout()
lay.addLayout(hlay)
lay.addStretch()
label_language = QtWidgets.QLabel("Language")
combo_language = QtWidgets.QComboBox(self)
combo_language.addItem("item1") #self.lang["language_danish"])
combo_language.addItem("item2") #self.lang["language_english"])
hlay.addWidget(label_language)
hlay.addWidget(combo_language)
class MainWindow(QtWidgets.QWidget):
def __init__(self, parent):
super(MainWindow, self).__init__(parent)
layout = QtWidgets.QVBoxLayout(self)
# Run this after settings
# self.lang = getLang(config.get("Main", "language"))
# Initialize tabs
tab_holder = QtWidgets.QTabWidget() # Create tab holder
tab_1 = GeneralWidget() # Tab one
tab_2 = OptionsWidget() # Tab two
# Add tabs
tab_holder.addTab(tab_1, "General") #self.lang["tab_1_title"]) # Add "tab1" to the tabs holder "tabs"
tab_holder.addTab(tab_2, "Options") #self.lang["tab_2_title"]) # Add "tab2" to the tabs holder "tabs"
layout.addWidget(tab_holder)
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())

Related

I am trying to get input from a user in one tab then show it in the second tab. I could not find a question or an example about how to do that. This is an example of the code that I want to use, How can I show the data from Tab(1) Qlabel in QTextEdit box in Tab(2), I am a beginner in pyqt5 and not sure how this would work:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class TabWidget(QDialog):
def __init__(self):
super().__init__()
self.setWindowTitle('Tab Widget Application')
tabwidget = QTabWidget()
tabwidget.addTab(FirstTab(), 'First Tab')
tabwidget.addTab(SecondTab(),'Second Tab')
vbox=QVBoxLayout()
vbox.addWidget(tabwidget)
self.setLayout(vbox)
class FirstTab(QWidget):
def __init__(self):
super().__init__()
self.nameLabel = QLabel(self)
self.nameLabel.setText('Name:')
self.line = QLineEdit(self)
self.line.move(80, 20)
self.line.resize(200, 32)
self.nameLabel.move(20, 20)
self.btn=QPushButton('switch',self)
self.btn.move(80, 50)
self.btn.clicked.connect(lambda: SecondTab.display(SecondTab(),self.nameLabel.text()))
class SecondTab(QWidget):
def __init__(self):
super().__init__()
self.layout = QVBoxLayout()
self.editor=QTextEdit()
self.layout.addWidget(self.editor)
self.setLayout(self.layout)
def display(self,text):
self.editor.setText(text)
if __name__ == '__main__':
app=QApplication(sys.argv)
tabwidget = TabWidget()
tabwidget.resize(500,500)
tabwidget.show()
app.exec()

In order to track changes amongst child widgets, you'll need a main "controller".
Your QTabWidget will suffice, as long as you implement it in the correct way:
class TabWidget(QDialog):
def __init__(self):
super().__init__()
self.setWindowTitle('Tab Widget Application')
# if the target widget of the layout is provided as an init argument, the
# layout will be automatically set to it
vbox = QVBoxLayout(self)
tabwidget = QTabWidget()
vbox.addWidget(tabwidget)
firstTab = FirstTab()
tabwidget.addTab(firstTab, 'First Tab')
secondTab = SecondTab()
tabwidget.addTab(secondTab,'Second Tab')
firstTab.line.textChanged.connect(secondTab.editor.setPlainText)
firstTab.btn.clicked.connect(lambda: tabwidget.setCurrentWidget(secondTab))

I've created aQMainWindow with menubar and 4 dockable widgets. First dockwidget contents multipletabs, second is Qpainter widget, third is Matlabplot and fourth is pdf report.
When I run the code shows up like this below.
I want to be like below.
I want to divide screen into four widget automatically whenever it runs at any screen, And I want to have tabs to resize to its content.
Or do you have any better idea of having such widget, you are welcome to come with it.
Update of code
Resize of Qdockwidget brings this post forward. It seems that Qt Qdockwidget resize has been an issue for long time ago. I find it very difficult to program my Qmainwindow with 4 Qdockwidget, which the dock would fit and resize according to its contents, with other words, child widget. and According to Qt documentation, Qdockwidget resizes and respect the size of child Widgets. to get straight to problem, my mainwindow has 4 qdockwidgets, I would like to have them resizable according to contents.
What I have tried and used so far.
I have used following size functions.
self.sizeHint, self.minimumSize(), self.maximumSize() and self.setFixedSize(self.sizeHint()).
I am able to fix the size of contents in first Qdockwidget by using following codes.
self.setFixedSize(self.sizeHint())
Above code is written in the child widgets Class widgets
But that is not enough in order to work it, despite following codes needed to run and effect.
self.first.setMinimumSize(self.first.sizeHint())
self.grid.setMinimumSize(self.grid.sizeHint())
self.third.setMinimumSize(self.third.sizeHint())
self.adjustSize()
self.first.setMinimumSize(self.first.minimumSizeHint())
self.grid.setMinimumSize(self.grid.minimumSizeHint())
self.third.setMinimumSize(self.third.minimumSizeHint())
Noting that still my dockwindow does not resize according to child widgets. Dockwidget expand and increase. One may ask, Qdockwidgets could arrange and control by resizeDocks(). This code line is used and tried, but still does not get the desired behaviour.
I have been looking around and could find some relevant questions.
C++ resize a docked Qt QDockWidget programmatically?
Forcing a QDockWidget to behave like a central widget when it comes to resizing
Create a QDockWidget that resizes to it's contents
Those questions do not solve my problem.
Visualization of my code launch
1- When code runs and display on screen.
2- Desired and wanted display by first run of software.
3- When user tabs between tabwidgets want to resize to its content as image below.
4- The code is given below.
import sys, os
from PyQt5 import QtCore, QtWidgets, QtGui
from PyQt5.QtWidgets import QMainWindow, QLabel, QGridLayout, QWidget,
QDesktopWidget, QApplication, QAction, QFileDialog,QColorDialog
from PyQt5.QtWidgets import QPushButton, QMessageBox, QDockWidget,
QTabWidget, QVBoxLayout, QGroupBox, QHBoxLayout, QFrame, QSplitter
from PyQt5.QtWidgets import QTableWidget, QRadioButton, QListWidget,
QCheckBox, QTextEdit, QDialog, QSizePolicy
from PyQt5.QtCore import QSize, Qt, QFileInfo, QFile
from PyQt5.QtGui import QIcon, QKeySequence, QPainter, QPalette, QPen,
QBrush, QTextCursor, QFont
import matplotlib.pyplot as plt
#plt.style.use('ggplot')
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar
import seaborn as sns
iconroot = os.path.dirname(__file__)
class mywindow(QMainWindow):
def __init__(self):
super(mywindow, self).__init__()
self.setMinimumSize(QSize(1200,800))
self.setWindowTitle('My Graphic Window')
centralWidget = QWidget(self)
self.setCentralWidget(centralWidget)
gridLayout = QGridLayout(self)
centralWidget.setLayout(gridLayout)
qtRectangle = self.frameGeometry()
centerPoint = QDesktopWidget().availableGeometry().center()
qtRectangle.moveCenter(centerPoint)
self.move(qtRectangle.topLeft())
imageroot = QFileInfo(__file__).absolutePath()
# Greate new action
newaction = QAction(QIcon(imageroot +'/images/new.png'), '&New', self)
newaction.setShortcut('Ctrl+N')
newaction.setStatusTip('New document')
newaction.triggered.connect(self.newCall)
# Greate menu bar and add action
menubar = self.menuBar()
filemenu = menubar.addMenu('&Test')
filemenu.addAction(newaction)
# Get current screen geometry
self.Screen = QtWidgets.QDesktopWidget().screenGeometry()
print(self.Screen, self.Screen.height(), self.Screen.width())
# def createToolbar(self):
self.filetoolbar = self.addToolBar('File')
self.filetoolbar.addAction(newaction)
self.topleftdockwindow()
self.toprightdockwindow()
def newCall(self):
print('New')
# Greate dockable subwindow.
def topleftdockwindow(self):
topleftwindow = QDockWidget ('Info',self)
# Stick window to left or right
topleftwindow.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
self.addDockWidget(Qt.TopDockWidgetArea, topleftwindow)
topleftwindow.setWidget(createtabwidget())
topleftwindow.resize( topleftwindow.minimumSize() )
bottomleftwindow = QDockWidget("Matplot",self)
bottomleftwindow.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
self.addDockWidget(Qt.BottomDockWidgetArea, bottomleftwindow)
bottomleftwindow.setWidget(createplotwidget())
self.setDockNestingEnabled(True)
topleftwindow.resize( topleftwindow.minimumSize() )
self.splitDockWidget(topleftwindow, bottomleftwindow , Qt.Vertical)
#self.resizeDocks((topleftwindow, bottomleftwindow), (40,20),
#Qt.Horizontal)
# Greate topright dockwindow.
def toprightdockwindow(self):
toprightdock = QDockWidget ('Plot',self)
toprightdock = QDockWidget ('Plot',self)
toprightdock.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
self.addDockWidget(Qt.TopDockWidgetArea, toprightdock)
#self.setDockOptions(self.AnimatedDocks | self.AllowNestedDocks)
toprightdock.setWidget(createpaintwidget())
toprightdock.setFloating( True )
bottomrightdock = QDockWidget("Technical report",self)
bottomrightdock.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
self.addDockWidget(Qt.BottomDockWidgetArea, bottomrightdock)
bottomrightdock.setWidget(QtWidgets.QListWidget())
self.splitDockWidget(toprightdock, bottomrightdock, Qt.Vertical)
class createpaintwidget(QWidget):
def __init__(self):
super().__init__()
self.setBackgroundRole(QPalette.Base)
self.setAutoFillBackground(True)
self.sizeHint()
self.adjustSize()
def paintEvent(self, event):
self.pen = QPen()
self.brush = QBrush(Qt.gray,Qt.Dense7Pattern)
painter = QPainter(self)
painter.setPen(self.pen)
painter.setBrush(self.brush)
painter.drawRect(100,100,250,250)
painter.setBrush(QBrush())
painter.drawEllipse(400,100,200,200)
class createplotwidget(QWidget):
def __init__(self):
super().__init__()
self.initializewidget()
self.plot1()
self.setMaximumSize(self.sizeHint())
self.adjustSize()
def initializewidget(self):
self.setWindowTitle("Plotting M&N")
gridlayout = QGridLayout()
self.setLayout(gridlayout)
self.figure = plt.figure(figsize=(15,5))
self.canvas = FigureCanvas(self.figure)
self.toolbar = NavigationToolbar(self.canvas,self)
gridlayout.addWidget(self.canvas,1,0,1,2)
gridlayout.addWidget(self.toolbar,0,0,1,2)
def plot1(self):
# sns.set()
ax = self.figure.add_subplot(111)
x = [i for i in range(100)]
y = [i**2 for i in x]
ax.plot(x,y, 'b.-')
ax.set_title('Quadratic Plot')
self.canvas.draw()
class createtextdocument(QWidget):
def __init__(self):
super().__init__()
self.textedit()
def textedit(self):
self.textedit = QTextEdit()
self.cursor = self.textedit.textCursor()
class createtabwidget(QDialog):
def __init__(self):
super().__init__()
# Greate tabs in dockable window
tab = QTabWidget()
scroll = QScrollArea()
ncroll = QScrollArea()
mcroll = QScrollArea()
self.first = firsttabgeometry()
self.grid = Grid()
self.third = thirdtabloads()
scroll.setWidget(self.first)
ncroll.setWidget(self.grid)
mcroll.setWidget(self.third)
scroll.setWidgetResizable(True)
self.first.setMinimumSize(self.first.sizeHint())
self.grid.setMinimumSize(self.grid.sizeHint())
self.third.setMinimumSize(self.third.sizeHint())
self.adjustSize()
self.first.setMinimumSize(self.first.minimumSizeHint())
self.grid.setMinimumSize(self.grid.minimumSizeHint())
self.third.setMinimumSize(self.third.minimumSizeHint())
# Adding multiple tabslides
tab.addTab(self.first,'One')
tab.addTab(self.grid,'Two')
tab.addTab(self.third,'Three')
tab.setFont(QFont("Georgia",10,QFont.Normal))
vboxlayout = QVBoxLayout()
vboxlayout.addWidget(tab)
self.setLayout(vboxlayout)
class firsttabgeometry(QWidget):
def __init__(self):
super().__init__()
self.setFixedSize(self.sizeHint())
iconroot = QFileInfo(__file__).absolutePath()
font = QFont("Georgia",10,QFont.Normal)
# Add widget and buttons to tabs
sectiontypegroupbox = QGroupBox('&One',self)
sectiontypegroupbox.setFont(QFont("Georgia",10,QFont.Normal))
tab1button = QPushButton('')
tab1button.setIcon(QIcon(iconroot +'/images/circularcolumn'))
tab1button.setIconSize(QSize(60,60))
tab1button.clicked.connect(self.One)
squarebutton = QPushButton('')
squarebutton.setIcon(QIcon(iconroot +'/images/squarecolumn'))
squarebutton.setIconSize(QSize(60,60))
squarebutton.clicked.connect(self.Two)
wallbutton = QPushButton("")
wallbutton.setIcon(QIcon(iconroot +'/images/wall'))
wallbutton.setIconSize(QSize(60,60))
wallbutton.clicked.connect(self.Three)
circularlabel = QLabel(" One",self)
circularlabel.setSizePolicy(QSizePolicy.Expanding,QSizePolicy.Expanding)
circularlabel.setFont(font)
sclabel = QLabel(" Two",self)
sclabel.setSizePolicy(QSizePolicy.Expanding,QSizePolicy.Expanding)
sclabel.setFont(font)
walllabel = QLabel(" Three",self)
walllabel.setSizePolicy(QSizePolicy.Expanding,QSizePolicy.Expanding)
walllabel.setFont(font)
bottomgroupbox = QGroupBox("Group 2")
vboxlayout = QHBoxLayout()
vboxlayout.addStretch()
radiobutton2 = QRadioButton("Radio Button")
radiobutton3 = QRadioButton("Radio Button")
testbutton2 = QPushButton('Test Button 2')
vboxlayout.addWidget(radiobutton2)
vboxlayout.addWidget(radiobutton3)
vboxlayout.addWidget(testbutton2)
bottomgroupbox.setLayout(vboxlayout)
mainlayout = QGridLayout()
mainlayout.addWidget(tab1button,0,0)
mainlayout.addWidget(circularlabel,0,1)
mainlayout.addWidget(squarebutton,1,0)
mainlayout.addWidget(sclabel,1,1)
mainlayout.addWidget(wallbutton,2,0)
mainlayout.addWidget(walllabel,2,1)
mainlayout.setContentsMargins(200,50,50,50)
sectiontypegroupbox.setLayout(mainlayout)
gridlayout = QGridLayout()
gridlayout.addWidget(sectiontypegroupbox,1,0)
gridlayout.setContentsMargins(25,25,25,25)
self.setLayout(gridlayout)
def One(self):
print('One')
def Two(self):
print('Two')
def Three(self):
print('Three')
class FooWidget(QtWidgets.QWidget):
def __init__(self, path_icon, text, checked=False, parent=None):
super(FooWidget, self).__init__(parent)
lay = QtWidgets.QVBoxLayout(self)
pixmap = QtGui.QPixmap(os.path.join(iconroot, path_icon))
pixmap_label = QtWidgets.QLabel()
pixmap_label.resize(150, 150)
pixmap_label.setPixmap(pixmap.scaled(pixmap_label.size(), QtCore.Qt.KeepAspectRatio))
text_label = QtWidgets.QLabel(text)
checkbox = QtWidgets.QCheckBox(checked=checked)
lay.addWidget(pixmap_label)
lay.addWidget(text_label)
lay.addWidget(checkbox)
class Grid(QtWidgets.QWidget):
def __init__(self, parent=None):
super(Grid, self).__init__(parent)
self.setFixedSize(self.sizeHint())
font = QFont("Georgia",8,QFont.Normal)
lay = QtWidgets.QHBoxLayout(self)
icons = ["images/fixed-fixed.png",
"images/pinned-pinned.png",
"images/fixed-free.png",
"images/fixed-pinned.png"]
texts = ["Ley = 1.0 L\nLec = 1.0 L",
"Ley = 0.699 L\nLec = 0.699 L",
"Ley = 2.0 L\nLec = 2.0 L",
"Ley = 0.5 L\nLec = 0.5 L"]
for path_icon, text in zip(icons, texts):
w = FooWidget(os.path.join(iconroot, path_icon), text)
lay.addWidget(w)
class thirdtabloads(QtWidgets.QWidget):
def __init__(self, parent=None):
super(thirdtabloads, self).__init__(parent)
self.adjustSize()
table = loadtable()
add_button = QtWidgets.QPushButton("Add")
add_button.clicked.connect(table._addrow)
delete_button = QtWidgets.QPushButton("Delete")
delete_button.clicked.connect(table._removerow)
copy_button = QtWidgets.QPushButton("Copy")
copy_button.clicked.connect(table._copyrow)
button_layout = QtWidgets.QVBoxLayout()
button_layout.addWidget(add_button, alignment=QtCore.Qt.AlignBottom)
button_layout.addWidget(delete_button, alignment=QtCore.Qt.AlignTop)
button_layout.addWidget(copy_button, alignment=QtCore.Qt.AlignTop )
tablehbox = QtWidgets.QHBoxLayout()
tablehbox.setContentsMargins(10,10,10,10)
tablehbox.addWidget(table)
grid = QtWidgets.QGridLayout(self)
grid.addLayout(button_layout, 0, 1)
grid.addLayout(tablehbox, 0, 0)
def copy_widget(w):
if isinstance(w, QtWidgets.QWidget):
new_w = type(w)()
if isinstance(w, QtWidgets.QComboBox):
vals = [w.itemText(ix) for ix in range(w.count())]
new_w.addItems(vals)
return new_w
class loadtable(QtWidgets.QTableWidget):
def __init__(self, parent=None):
super(loadtable, self).__init__(1, 5, parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
headertitle = ("Load Name","N [kN]","My [kNm]","Mz [kNm]","Load Type")
self.setHorizontalHeaderLabels(headertitle)
self.verticalHeader().hide()
self.horizontalHeader().setHighlightSections(False)
self.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.Fixed)
self.setSelectionMode(QtWidgets.QAbstractItemView.NoSelection)
self.setColumnWidth(0, 130)
combox_lay = QtWidgets.QComboBox(self)
combox_lay.addItems(["ULS","SLS"])
self.setCellWidget(0, 4, combox_lay)
self.cellChanged.connect(self._cellclicked)
#QtCore.pyqtSlot(int, int)
def _cellclicked(self, r, c):
it = self.item(r, c)
it.setTextAlignment(QtCore.Qt.AlignCenter)
#QtCore.pyqtSlot()
def _addrow(self):
rowcount = self.rowCount()
self.insertRow(rowcount)
combox_add = QtWidgets.QComboBox(self)
combox_add.addItems(["ULS","SLS"])
self.setCellWidget(rowcount, 4, combox_add)
#QtCore.pyqtSlot()
def _removerow(self):
if self.rowCount() > 0:
self.removeRow(self.rowCount()-1)
#QtCore.pyqtSlot()
def _copyrow(self):
r = self.currentRow()
if 0 <= r < self.rowCount():
cells = {"items": [], "widgets": []}
for i in range(self.columnCount()):
it = self.item(r, i)
if it:
cells["items"].append((i, it.clone()))
w = self.cellWidget(r, i)
if w:
cells["widgets"].append((i, copy_widget(w)))
self.copy(cells, r+1)
def copy(self, cells, r):
self.insertRow(r)
for i, it in cells["items"]:
self.setItem(r, i, it)
for i, w in cells["widgets"]:
self.setCellWidget(r, i, w)
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
app.setStyle("Fusion")
mainWin = mywindow()
mainWin.show()
mainWin.showMaximized()
sys.exit(app.exec_())
I would appreciate much any help on this.

If floating windows aren't essential to your tool then you can try dropping QDockWidget and using a series of QSplitter instead. This way you can have your nice box layout while having tabs to resize horizontally and vertically, and still resizing properly when the tool as a whole resizes.
My example is in PySide2, but you'll probably need to do very minor tweaks to PyQt5 (probably just the import names):
from PySide2 import QtCore
from PySide2 import QtGui
from PySide2 import QtWidgets
class SubWindow(QtWidgets.QWidget):
def __init__(self, label, parent=None):
super(SubWindow, self).__init__(parent)
self.label = QtWidgets.QLabel(label, parent=self)
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.label.setStyleSheet("QLabel {font-size:40px;}")
self.main_layout = QtWidgets.QVBoxLayout()
self.main_layout.addWidget(self.label)
self.setLayout(self.main_layout)
class MainWindow(QtWidgets.QWidget):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.sub_win_1 = SubWindow("1", parent=self)
self.sub_win_2 = SubWindow("2", parent=self)
self.sub_win_3 = SubWindow("3", parent=self)
self.sub_win_4 = SubWindow("4", parent=self)
self.sub_splitter_1 = QtWidgets.QSplitter(QtCore.Qt.Horizontal, parent=self)
self.sub_splitter_1.addWidget(self.sub_win_1)
self.sub_splitter_1.addWidget(self.sub_win_2)
self.sub_splitter_2 = QtWidgets.QSplitter(QtCore.Qt.Horizontal, parent=self)
self.sub_splitter_2.addWidget(self.sub_win_3)
self.sub_splitter_2.addWidget(self.sub_win_4)
self.splitter = QtWidgets.QSplitter(QtCore.Qt.Vertical, parent=self)
self.splitter.addWidget(self.sub_splitter_1)
self.splitter.addWidget(self.sub_splitter_2)
self.main_layout = QtWidgets.QVBoxLayout()
self.main_layout.addWidget(self.splitter)
self.setLayout(self.main_layout)
self.setWindowTitle("Layout example")
self.resize(500, 500)
inst = MainWindow()
inst.show()
This gives you something like this:
Right now the top/bottom horizontal splitters function separately, but you can easily tie them together with an event.
Hope that helps!

I created a QButtonGroup (there might be unused artefacts in the code. Please ignore them). I would like to retrieve the Id of all checked radio buttons. However, the QButtonGroup.checkedId() does return only one button at a time.
Is it possible to retrieve a list of all checked RadioButtons ?
import sys
from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton, QWidget, QAction, QTabWidget, QVBoxLayout,\
QHBoxLayout, QGridLayout, QSplitter, QFrame, QTextEdit, QFileDialog, QGroupBox,\
QButtonGroup, QLabel, QRadioButton
class MyRadioButtonGroup(QWidget):
"""
creates radio buttons from a list
"""
def __init__(self, label, instructions, name_list):
super().__init__()
self.title_label = QLabel(label)
self.name_list = name_list
# create the widget
self.layout = QVBoxLayout()
self.group_box = QGroupBox(instructions)
self.button_group = QButtonGroup()
self.button_group.setExclusive(False)
# create the buttons
self.button_list = [QRadioButton(item) for item in self.name_list]
self.button_layout = QVBoxLayout()
for i, button in enumerate(self.button_list):
self.button_layout.addWidget(button)
self.button_group.addButton(button)
self.button_group.setId(button, i)
self.group_box.setLayout(self.button_layout)
# create the main layout
self.main_layout = QVBoxLayout()
self.main_layout.addWidget(self.title_label)
self.main_layout.addWidget(self.group_box)
self.setLayout(self.main_layout)
# method for getting the state of the buttons
def get_states(self):
states = self.button_group.checkedId()
return states
class MainApp(QMainWindow):
""" This creates the main Window and configures its look
"""
def __init__(self):
'''
Initializes the class with standard parameters
'''
super().__init__()
self.title = 'Data Analysis App'
# start at top left corner of the screen
self.left = 0
self.top = 0
# set the window height and width
self.width = 1280
self.height = 780
# set the styles of fonts etc.
self.setStyleSheet('font-size: 16pt')
# call the makeUI method
self.makeUI()
def makeUI(self):
# set window geometry
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
# generate the tab layout
self.table_widget = MyTableWidget()
self.setCentralWidget(self.table_widget)
# apparently we have to call the show method in order to show it
self.show()
class MyTableWidget(QWidget):
"""
Initializes the tab layout
"""
def __init__(self):
super().__init__()
self.layout = QVBoxLayout(self)
# initialize the tab screens
self.tabs = QTabWidget()
# add the tab screens to the tab widget
self.tabs.resize(600, 600)
# make the layout of the tabs
self.make_tab1()
# initialize the tabs
self.layout.addWidget(self.tabs)
self.setLayout(self.layout)
def make_tab1(self):
"""Style of tab 1 is created here"""
'''Defines master layout of tab1'''
tab1 = QWidget()
tab1.layout = QHBoxLayout()
'''Button Section'''
# converts the data into excel and pandas dataframe
btn_test = QPushButton('Test')
btn_test.clicked.connect(self.test)
name_list = ['A', 'B', 'C']
self.radio_buttons = MyRadioButtonGroup('TEST', 'Check more than one', name_list)
'''Page layout section '''
tab1.layout.addWidget(btn_test)
tab1.layout.addWidget(self.radio_buttons)
tab1.setLayout(tab1.layout)
self.tabs.addTab(tab1, 'Test Radio Buttons')
''' Methods section
'''
def test(self):
print(self.radio_buttons.get_states())
if __name__ == '__main__':
""" This code block is always the same and makes sure that e.g. STRG+C kills the window etc.
"""
app = QApplication(sys.argv)
ex = MainApp()
sys.exit(app.exec())

You could just retrieve them with a list comprehension:
def test(self):
print([i for i, button in enumerate(self.radio_buttons.button_group.buttons()) if button.isChecked()])

I am trying to show set of actions when a button is clicked and other set of options if another button is clicked.
Below is the code:
class Screen(QWidget):
def __init__(self):
super(Screen, self).__init__()
layout = QHBoxLayout(self)
self.all_running()
layout.addWidget(self.running_full_widget)
self.actions('1')
layout.addWidget(self.actions_full_widget)
self.setLayout(layout)
self.show()
def all_running(self):
self.running_full_widget = QWidget()
runnning_full_layout= QVBoxLayout()
button1 = QPushButton("btn1")
button2 = QPushButton("btn2")
button1.clicked.connect(lambda: self.actions('2'))
button2.clicked.connect(lambda: self.actions('3'))
runnning_full_layout.addWidget(button1)
runnning_full_layout.addWidget(button2)
self.running_full_widget.setLayout(runnning_full_layout)
def actions(self,value):
self.actions_full_widget= QWidget()
val = int(value)
print(val)
actions_layout = QVBoxLayout()
for i in range(val):
actions_item = QLabel(str(i))
actions_layout.addWidget(actions_item)
self.actions_full_widget.setLayout(actions_layout)
app = QApplication(sys.argv)
Gui = Screen()
sys.exit(app.exec_())
When button is clicked i can see the value is updated but it is not updated in the main layout.
how can i dynamically update the widgets ?
How can I do that in cases where i need to add widgets based on a dynamic value.
did i miss anything with signals and slots?
Kindly correct me if i am wrong. Thanks

Your code was almost there. The problem you are seeing is the widgets were being added but never removed. The following code could be simplified, but I tried to keep it close to yours so you could see the changes more easily.
The main change is now there is a class member screen_layout and the widgets are added/removed from it inside actions().
import sys
from PyQt5.QtWidgets import QHBoxLayout, QVBoxLayout, QWidget, QPushButton, QLabel, QApplication
class Screen(QWidget):
def __init__(self):
super(Screen, self).__init__()
layout = QHBoxLayout(self)
self.screen_layout = layout
self.all_running()
layout.addWidget(self.running_full_widget)
self.actions_full_widget = None
self.actions('1')
# layout.addWidget(self.actions_full_widget)
self.setLayout(layout)
self.show()
def all_running(self):
self.running_full_widget = QWidget()
runnning_full_layout= QVBoxLayout()
button1 = QPushButton("btn1")
button2 = QPushButton("btn2")
button1.clicked.connect(lambda: self.actions('2'))
button2.clicked.connect(lambda: self.actions('3'))
runnning_full_layout.addWidget(button1)
runnning_full_layout.addWidget(button2)
self.running_full_widget.setLayout(runnning_full_layout)
def actions(self,value):
# Remove any previously added widget
if self.actions_full_widget is not None:
self.screen_layout.removeWidget(self.actions_full_widget)
self.actions_full_widget.deleteLater()
self.actions_full_widget= QWidget()
val = int(value)
print(val)
actions_layout = QVBoxLayout()
for i in range(val):
actions_item = QLabel(str(i))
actions_layout.addWidget(actions_item)
self.actions_full_widget.setLayout(actions_layout)
self.screen_layout.addWidget(self.actions_full_widget)
app = QApplication(sys.argv)
Gui = Screen()
sys.exit(app.exec_())

I am trying to set up a window that has a text input & a combo box. At the moment I just want to see the text & the selection displayed under the appropriate widget.
I have used QVBoxLayout() as I will be adding more stuff later & thought it would be a simple way of laying out the window.
Unfortunately only the combo box ever gets displayed. The code:
from PyQt4 import QtCore, QtGui
import sys
class Polyhedra(QtGui.QMainWindow):
def __init__(self):
super(Polyhedra, self).__init__()
self.initUI()
def initUI(self):
# Poly names
self.pNames = QtGui.QLabel(self)
polyNameInput = QtGui.QLineEdit(self)
# polyName entry
polyNameInput.textChanged[str].connect(self.onChanged)
# Polytype selection
self.defaultPolyType = QtGui.QLabel("Random polyhedra", self)
polyType = QtGui.QComboBox(self)
polyType.addItem("Random polyhedra")
polyType.addItem("Spheres")
polyType.addItem("Waterman polyhedra")
polyType.activated[str].connect(self.onActivated)
# Layout
vbox = QtGui.QVBoxLayout()
vbox.addWidget(polyNameInput)
vbox.addWidget(self.pNames)
vbox.addWidget(polyType)
vbox.addWidget(self.defaultPolyType)
vbox.addStretch()
# Set up window
self.setGeometry(500, 500, 300, 300)
self.setWindowTitle('Pyticle')
self.show()
# Combo box
def onActivated(self, text):
self.defaultPolyType.setText(text)
self.defaultPolyType.adjustSize()
# Poly names
def onChanged(self, text):
self.pNames.setText(text)
self.pNames.adjustSize()
def main():
app = QtGui.QApplication(sys.argv)
ex = Polyhedra()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
So whats going on here? Am I missing some important directive to QVBoxLayout()?
Using Python 2.7 on Win 7 x64 machine with PyQt 4.
EDIT: Additional problem (still related to missing widgets)
I have amended the code following the clarification below. I then added more widgets when a certain option in the combobox is chosen (see below) but these widgets dont show. I attempted to add a child widget to 'widget' called 'ranPolyWidget' to take a numerical input.
# Combo box
def onActivated(self, text):
if text=="Random polyhedra":
self.randomSeedLbl = QtGui.QLabel("Seed: ", self)
randomSeed = QtGui.QLineEdit(self)
randomSeed.textChanged[str].connect(self.setSeed)
ranPolyWidget = QtGui.QWidget(self.widget)
rbox = QtGui.QVBoxLayout(ranPolyWidget)
rbox.addWidget(randomSeed)
self.layout().addWidget(ranPolyWidget)
self.show()
else:
self.defaultPolyType.setText(text)
self.defaultPolyType.adjustSize()
Same issue as before, no widgets. I am missing something pretty fundamental arent I?

You're forgetting to set it to the widget or main window, so since the QComboBox is the last one made, it's the only one displayed. Basically, everything is added to the layout, but the layout is "free-floating", and so it does not display properly. You need to bind the layout to a QWidget, which I do here. For most widgets, you can can do this by the QtGui.QVBoxLayout(widget) or by widget.setLayout(layout).
Alternatively, if you want multiple layouts on a widget, you can do have a parent layout and then add each child layout to the main layout.
EDIT: This is a better answer:
Make a widget, set layout to widget and set as central widget.
QMainWindow-s don't like you using the builtin layout or overriding it.
widget = QtGui.QWidget()
vbox = QtGui.QVBoxLayout(widget)
self.setCentralWidget(widget)
Old Answer:
self.layout().addLayout(vbox).
This should fix your issue:
Changes I made:
Since QMainWindow already has a layout, add in a widget (28G) and then set the VBoxLayout to the widget and add it to the main window.
from PyQt4 import QtCore, QtGui
import sys
class Polyhedra(QtGui.QMainWindow):
def __init__(self):
super(Polyhedra, self).__init__()
self.initUI()
def initUI(self):
# Poly names
self.pNames = QtGui.QLabel(self)
polyNameInput = QtGui.QLineEdit(self)
# polyName entry
polyNameInput.textChanged[str].connect(self.onChanged)
# Polytype selection
self.defaultPolyType = QtGui.QLabel("Random polyhedra", self)
polyType = QtGui.QComboBox(self)
polyType.addItem("Random polyhedra")
polyType.addItem("Spheres")
polyType.addItem("Waterman polyhedra")
polyType.activated[str].connect(self.onActivated)
# Layout
widget = QtGui.QWidget()
vbox = QtGui.QVBoxLayout(widget)
vbox.addWidget(polyNameInput)
vbox.addWidget(self.pNames)
vbox.addWidget(polyType)
vbox.addWidget(self.defaultPolyType)
vbox.addStretch()
# Set up window
self.setGeometry(500, 500, 300, 300)
self.setWindowTitle('Pyticle')
self.layout().addWidget(widget)
self.show()
# Combo box
def onActivated(self, text):
self.defaultPolyType.setText(text)
self.defaultPolyType.adjustSize()
# Poly names
def onChanged(self, text):
self.pNames.setText(text)
self.pNames.adjustSize()
def main():
app = QtGui.QApplication(sys.argv)
ex = Polyhedra()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
EDIT:
For adding new widgets, you should add them to the layout of the central widget and parent them to that widget.
Here's how I'd restructure your full code:
from PyQt4 import QtCore, QtGui
import sys
class CentralWidget(QtGui.QWidget):
def __init__(self, parent=None):
super(CentralWidget, self).__init__(parent)
# set layouts
self.layout = QtGui.QVBoxLayout(self)
# Poly names
self.pNames = QtGui.QLabel(self)
polyNameInput = QtGui.QLineEdit(self)
# polyName entry
polyNameInput.textChanged[str].connect(self.onChanged)
# Polytype selection
self.defaultPolyType = QtGui.QLabel("Random polyhedra", self)
polyType = QtGui.QComboBox(self)
polyType.addItem("Random polyhedra")
polyType.addItem("Spheres")
polyType.addItem("Waterman polyhedra")
polyType.activated[str].connect(self.onActivated)
self.layout.addWidget(polyNameInput)
self.layout.addWidget(self.pNames)
self.layout.addWidget(polyType)
self.layout.addWidget(self.defaultPolyType)
self.layout.addStretch()
def onActivated(self, text):
'''Adds randSeed to layout'''
if text=="Random polyhedra":
self.randomSeedLbl = QtGui.QLabel("Seed: ", self)
randomSeed = QtGui.QLineEdit(self)
randomSeed.textChanged[str].connect(self.setSeed)
self.layout.addWidget(randomSeed)
else:
self.defaultPolyType.setText(text)
self.defaultPolyType.adjustSize()
# Poly names
def onChanged(self, text):
self.pNames.setText(text)
self.pNames.adjustSize()
class Polyhedra(QtGui.QMainWindow):
def __init__(self):
super(Polyhedra, self).__init__()
# I like having class attributes bound in __init__
# Not very Qt of me, but it's more
# so I break everything down into subclasses
# find it more Pythonic and easier to debug: parent->child
# is easy when I need to repaint or delete child widgets
self.central_widget = CentralWidget(self)
self.setCentralWidget(self.central_widget)
# Set up window
self.setGeometry(500, 500, 300, 300)
self.setWindowTitle('Pyticle')
self.show()
# Combo box
def onActivated(self, text):
'''Pass to child'''
self.central_widget.onActivated(text)
def main():
app = QtGui.QApplication(sys.argv)
ex = Polyhedra()
sys.exit(app.exec_())
if __name__ == '__main__':
main()