I would like to know is it possible to have a signal or something to know when the scroll is available and when it is no longer available each time the window is resized?
import sys
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
class Widget(QWidget):
def __init__(self, parent= None):
super(Widget, self).__init__()
widget = QWidget()
layout = QVBoxLayout(self)
for _ in range(10):
btn = QPushButton()
layout.addWidget(btn)
widget.setLayout(layout)
scroll = QScrollArea()
scroll.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded)
scroll.setWidget(widget)
vLayout = QVBoxLayout(self)
vLayout.addWidget(scroll)
self.setLayout(vLayout)
if __name__ == '__main__':
app = QApplication(sys.argv)
dialog = Widget()
dialog.show()
app.exec_()
Since a QScrollBar is usually visible only when its range maximum is greater than 0, you can just check that value.
class Widget(QWidget):
def __init__(self, parent= None):
# ....
# note that the scroll area is now an instance member
self.scroll = QScrollArea()
self.scroll.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.scroll.setWidget(widget)
self.scroll.verticalScrollBar().rangeChanged.connect(self.checkScrollBarRange)
vLayout = QVBoxLayout(self)
vLayout.addWidget(self.scroll)
self.setLayout(vLayout)
# the next is important when resizing the widget containing the scroll area
self.scroll.installEventFilter(self)
def eventFilter(self, source, event):
if source == self.scroll and event.type() == QEvent.Resize:
self.checkScrollBarRange()
return super().eventFilter(source, event)
def checkScrollBarRange(self):
if (self.scroll.verticalScrollBarPolicy() != Qt.ScrollBarAlwaysOff and
self.scroll.verticalScrollBar().maximum()):
print('vertical scroll bar IS visible')
else:
print('vertical scroll bar NOT visible')
Related
I want to get the position of mouse while it's hovering over a label. I read this but my problem is different. I need to grab the mouse position as it hovers over my label without clicking so, mouseMoveEvent doesn't help
here's my code:
class MyWindow(QMainWindow):
def __init__(self):
super().__init__()
self.WindowGUI()
self.level = "Image Not Loaded Yet"
self.mouseIsClicked = False
self.top = 90
self.left = 90
self.height = 1800
self.width = 1800
self.setGeometry(self.top, self.left, self.height, self.width)
self.setWindowTitle("Manual Contact Andgle")
self.setMouseTracking(True)
mainWidget = QWidget(self)
self.setCentralWidget(mainWidget)
mainWidget.setLayout(self.finalVbox)
self.show()
def WindowGUI(self):
self.finalVbox = QVBoxLayout() # Final Layout
self.mainHBox = QHBoxLayout() # Hbox for picLable and Buttons
self.mainVBox = QVBoxLayout() # VBox for two Groupboxes
self.lineVBox = QVBoxLayout() # VBox For Line Drawing Buttons
self.fileVBox = QVBoxLayout() # VBox for file Loading and Saving Buttons
self.lineGroupbox = QGroupBox("Drawing") # GroupBox For Line Drawing Buttons
self.fileGroupbox = QGroupBox("File") # GroupBox for File Loading and Saving Buttons
self.picLable = Label(self) # Lable For showing the Image
self.piclable_pixmap = QPixmap("loadImage.png") # Setting Pixmap
self.picLable.setPixmap(self.piclable_pixmap) # setting pixmap to piclable
def mouseMoveEvent(self, QMouseEvent):
print(QMouseEvent.pos())
If you want to detect the mouse position without pressing on the widget then you must enable mouseTracking that will make the mouseMoveEvent invoked when the mouse is pressed or not, if you want to verify that it is not pressed you must use the buttons() method:
import sys
from PyQt5 import QtWidgets
class Label(QtWidgets.QLabel):
def __init__(self, parent=None):
super().__init__(parent)
self.setMouseTracking(True)
def mouseMoveEvent(self, event):
if not event.buttons():
print(event.pos())
super().mouseMoveEvent(event)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
w = Label()
w.resize(640, 480)
w.show()
sys.exit(app.exec_())
UPDATE:
Mouse events are propagated from children to parents if the children do not consume it, that is, if the child consumes it then the parent cannot consume it. So the QLabel is consuming that event so the window will not be notified, so in this case an eventFilter should be used:
import sys
from PyQt5.QtCore import pyqtSignal, pyqtSlot, QEvent, QObject, QPoint
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication, QLabel, QMainWindow
class HoverTracker(QObject):
positionChanged = pyqtSignal(QPoint)
def __init__(self, widget):
super().__init__(widget)
self._widget = widget
self.widget.setMouseTracking(True)
self.widget.installEventFilter(self)
#property
def widget(self):
return self._widget
def eventFilter(self, obj, event):
if obj is self.widget and event.type() == QEvent.MouseMove:
self.positionChanged.emit(event.pos())
return super().eventFilter(obj, event)
class MyWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("Manual Contact Andgle")
self.picLable = QLabel(self)
self.picLable.setPixmap(QPixmap("loadImage.png"))
hover_tracker = HoverTracker(self.picLable)
hover_tracker.positionChanged.connect(self.on_position_changed)
#pyqtSlot(QPoint)
def on_position_changed(self, p):
print(p)
if __name__ == "__main__":
app = QApplication(sys.argv)
w = MyWindow()
w.resize(640, 480)
w.show()
sys.exit(app.exec_())
You can use enterEvent.
Enter event gets called everytime the mouse is over the widget. With the event.pos() you can get the mouse coordinates.
self.label.enterEvent = lambda event: print(event.pos())
So I'm new to PyQt and I can't seem to quite work out all the kinks. For some reason, whenever I click the "play game" button, the image just doesn't appear. However, it does run the InitUI. Can someone tell me what Im doing wrong? (when It just loaded up the image initially, the image appeared.
class Example(QMainWindow):
def __init__(self):
super().__init__()
self.title = 'PyQt5 image - pythonspot.com'
self.initUI()
def initUI(self):
central_widget = QWidget()
self.chess = ChessWidget(central_widget)
self.setCentralWidget(central_widget)
self.setWindowIcon(QIcon('web.png'))
self.resize(900,900)
self.center()
self.setFixedSize(self.size())
self.show()
def toggleMenu(self, state):
if state:
self.statusbar.show()
else:
self.statusbar.hide()
# def closeEvent(self, event):
#
# reply = QMessageBox.question(self, 'Message',
# """Are you sure you want to quit?""", QMessageBox.Yes |
# QMessageBox.No, QMessageBox.No)
#
# if reply == QMessageBox.Yes:
# event.accept()
# else:
# event.ignore()
def center(self):
qr = self.frameGeometry()
cp = QDesktopWidget().availableGeometry().center()
qr.moveCenter(cp)
self.move(qr.topLeft())
class ChessWidget(QFrame):
def __init__(self, parent):
super().__init__(parent)
qbtn = QPushButton('Play Game', self)
qbtn.clicked.connect(lambda: qbtn.close())
qbtn.clicked.connect(lambda: self.initUI())
qbtn.resize(qbtn.sizeHint())
hbox = QHBoxLayout()
hbox.addStretch(1)
hbox.addWidget(qbtn)
vbox = QVBoxLayout()
vbox.addStretch(1)
vbox.addLayout(hbox)
self.setLayout(vbox)
def initUI(self):
print("hi")
pixmap = QPixmap("ChessBoard.jpg")
lbl = QLabel(self)
pixmap2 = pixmap.scaledToWidth(900)
hbox = QHBoxLayout(self)
hbox.addStretch(1)
hbox.addWidget(lbl)
lbl.setPixmap(pixmap2) ` if __name__ == '__main__':
app = QApplication([])
ex = Example()
sys.exit(app.exec_()) `
You should be getting a useful warning from Qt; if not, check that your test environment has a console active. The warning is:
QLayout: Attempting to add QLayout "" to ChessWidget "", which already has a layout
This happens when you create the QHBoxLayout in ChessWidget.initUI and try to parent it to the ChessWidget. You have already set a QVBoxLayout on that widget.
A quick solution is to retain the name of your layout (vbox -> self.vbox), then in a click event remove the QPushButton from the layout and add the ChessWidget.
I understand you're just making small tests for learning purposes, but this design pattern with the QPushButton being permanently replaced might not be what you want. If you want the QPushButton and ChessWidget to occupy the same space, look at QStackedWidget. This will allow you to switch from one widget to the other as often as you like. This could be a useful approach if you want to hide the ChessWidget later when no game is active, for example.
Note that when you create your QPushButton and QLabel, it's unnecessary to parent them to the ChessWidget as they will be reparented to the layout when added.
Try it:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
class Example(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
central_widget = QWidget()
self.chess = ChessWidget(central_widget)
self.setCentralWidget(central_widget)
self.layV = QVBoxLayout(central_widget) # +++
self.layV.addWidget(self.chess) # +++
self.setWindowIcon(QIcon('D:/_Qt/img/py-qt.png')) # web.png
self.resize(440,440) #(900,900)
class ChessWidget(QFrame):
def __init__(self, parent=None):
super().__init__(parent)
qbtn = QPushButton('Play Game', self)
qbtn.clicked.connect(lambda: qbtn.close())
qbtn.clicked.connect(lambda: self.initUI())
self.hbox = QHBoxLayout()
self.hbox.addWidget(qbtn)
self.vbox = QVBoxLayout()
self.vbox.addStretch(1)
self.vbox.addLayout(self.hbox)
self.setLayout(self.vbox)
def initUI(self):
print("hi")
pixmap = QPixmap("D:/_Qt/img/pyqt.jpg") # ChessBoard.jpg
lbl = QLabel(self)
self.vbox.addWidget(lbl)
lbl.setPixmap(pixmap.scaled(400, 400, Qt.KeepAspectRatio)) # +++
if __name__ == '__main__':
app = QApplication([])
ex = Example()
ex.setWindowTitle('PyQt5 image - pythonspot.com')
ex.show()
sys.exit(app.exec_())
I am trying to figure out a way to customize the scrollbars for QListWidget to have the scrollbars above and below the QListWidget instead of the normal vertical and horizontal scrollbars.
Please check out my example below if you don't understand what I mean.
In the example below I use QPushButtons with QTimers controlling the scrolling in place of the scrollbars but what I am looking for are scrollbars like the ones in QMenu when menu scrolling is enabled.
If that is not an option, I am wondering if there is a scrollbar signal or something that I could try to use to know when the scrollbars are normally activated? That way I can show/hide the buttons as needed. Thanks.
import sys
from PyQt5.QtCore import pyqtSignal, QTimer, Qt
from PyQt5.QtGui import QPainter
from PyQt5.QtWidgets import QWidget, QPushButton, QVBoxLayout, \
QApplication, QStyle, QListWidget, QStyleOptionButton, QListWidgetItem
class UpBtn(QPushButton):
mouseHover = pyqtSignal()
def __init__(self):
QPushButton.__init__(self)
self.setMouseTracking(True)
self.timer = QTimer()
def paintEvent(self, event):
painter = QPainter()
painter.begin(self)
opt = QStyleOptionButton()
self.initStyleOption(opt)
self.style().drawControl(QStyle.CE_ScrollBarSubLine, opt, painter, self)
painter.end()
def startScroll(self):
self.mouseHover.emit()
def enterEvent(self, event):
self.timer.timeout.connect(self.startScroll)
self.timer.start(120)
def leaveEvent(self, event):
self.timer.stop()
class DwnBtn(QPushButton):
mouseHover = pyqtSignal()
def __init__(self):
QPushButton.__init__(self)
self.setMouseTracking(True)
self.timer = QTimer()
def paintEvent(self, event):
painter = QPainter()
painter.begin(self)
opt = QStyleOptionButton()
self.initStyleOption(opt)
self.style().drawControl(QStyle.CE_ScrollBarAddLine, opt, painter, self)
painter.end()
def startScroll(self):
self.mouseHover.emit()
def enterEvent(self, event):
self.timer.timeout.connect(self.startScroll)
self.timer.start(120)
def leaveEvent(self, event):
self.timer.stop()
class Window(QWidget):
def __init__(self):
super(Window, self).__init__()
self.layout = QVBoxLayout()
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.setSpacing(0)
self.upBtn = UpBtn()
self.upBtn.setFixedWidth(230)
self.layout.addWidget(self.upBtn)
self.listWidget = QListWidget()
self.listWidget.setFixedWidth(230)
self.listWidget.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.listWidget.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.layout.addWidget(self.listWidget)
self.downBtn = DwnBtn()
self.downBtn.setFixedWidth(230)
self.layout.addWidget(self.downBtn)
self.setLayout(self.layout)
self.upBtn.clicked.connect(self.upBtnClicked)
self.upBtn.mouseHover.connect(self.upBtnClicked)
self.downBtn.clicked.connect(self.downBtnClicked)
self.downBtn.mouseHover.connect(self.downBtnClicked)
for i in range(100):
item = QListWidgetItem()
item.setText("list item " + str(i))
self.listWidget.addItem(item)
def upBtnClicked(self):
cur = self.listWidget.currentRow()
self.listWidget.setCurrentRow(cur - 1)
def downBtnClicked(self):
cur = self.listWidget.currentRow()
self.listWidget.setCurrentRow(cur + 1)
if __name__ == '__main__':
app = QApplication(sys.argv)
window = Window()
window.show()
sys.exit(app.exec_())
EDIT:
Here is an example image for what I am talking about. This is a scrollable QMenu.
EDIT:
Scrollable QMenu code.
Uncomment the commented parts to get a fixed size like in the image. Normally Qmenu scrolling only works when the menu items exceed the screen height. I am just looking for the top and bottom hover style scrolling but to be used in QListWidget.
import sys
from PyQt5.QtCore import QPoint, QEvent
from PyQt5.QtWidgets import QWidget, QPushButton, QVBoxLayout, \
QApplication, QAction, QMenu, QProxyStyle, QStyle
class MyMenu(QMenu):
def event(self, event):
if event.type() == QEvent.Show:
self.move(self.parent().mapToGlobal(QPoint(-108, 0)))
return super(MyMenu, self).event(event)
# class CustomStyle(QProxyStyle):
# def pixelMetric(self, QStyle_PixelMetric, option=None, widget=None):
# if QStyle_PixelMetric == QStyle.PM_MenuScrollerHeight:
# return 15
# if QStyle_PixelMetric == QStyle.PM_MenuDesktopFrameWidth:
# return 290
# else:
# return QProxyStyle.pixelMetric(self, QStyle_PixelMetric, option, widget)
class MainWindow(QWidget):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.layout = QVBoxLayout()
self.btn = QPushButton("Button")
self.btn.setFixedHeight(30)
self.btn.setFixedWidth(100)
self.myMenu = MyMenu("Menu", self.btn)
self.btn.setMenu(self.myMenu)
self.layout.addWidget(self.btn)
self.setLayout(self.layout)
menus = []
for _ in range(5):
myMenus = QMenu("Menu"+str(_+1), self.btn)
# myMenus.setFixedHeight(120)
myMenus.setStyleSheet("QMenu{menu-scrollable: 1; }")
menus.append(myMenus)
for i in menus:
self.btn.menu().addMenu(i)
for item in range(100):
action = QAction("item" + str(item), self)
i.addAction(action)
if __name__ == '__main__':
app = QApplication(sys.argv)
# app.setStyle(CustomStyle())
w = MainWindow()
w.show()
app.exec_()
The idea is to obtain the row of the upper and lower element that will decide whether the buttons are hidden or not, for that we use the method itemAt () that returns the item given the geometrical coordinates. On the other hand I have improved this calculation has to do every time they change the number of items in the QListView for that we use the signals of the internal model.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class Button(QtWidgets.QPushButton):
moveSignal = QtCore.pyqtSignal()
def __init__(self, *args, **kwargs):
super(Button, self).__init__(*args, **kwargs)
self.m_timer = QtCore.QTimer(self, interval=120)
self.m_timer.timeout.connect(self.moveSignal)
self.setMouseTracking(True)
self.setFixedHeight(20)
def mouseReleaseEvent(self, e):
super(Button, self).mousePressEvent(e)
self.setDown(True)
def enterEvent(self, e):
self.setDown(True)
self.m_timer.start()
super(Button, self).enterEvent(e)
def leaveEvent(self, e):
self.setDown(False)
self.m_timer.stop()
super(Button, self).leaveEvent(e)
class Window(QtWidgets.QWidget):
def __init__(self):
super(Window, self).__init__()
self.setFixedWidth(230)
icon = self.style().standardIcon(QtWidgets.QStyle.SP_ArrowUp)
self.upBtn = Button(icon=icon)
self.upBtn.moveSignal.connect(self.moveUp)
icon = self.style().standardIcon(QtWidgets.QStyle.SP_ArrowDown)
self.downBtn = Button(icon=icon)
self.downBtn.moveSignal.connect(self.moveDown)
self.listWidget = QtWidgets.QListWidget()
self.listWidget.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.listWidget.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
layout = QtWidgets.QVBoxLayout(self)
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
layout.addWidget(self.upBtn)
layout.addWidget(self.listWidget)
layout.addWidget(self.downBtn)
self.adjust_buttons()
self.create_connections()
def create_connections(self):
self.listWidget.currentItemChanged.connect(self.adjust_buttons)
model = self.listWidget.model()
model.rowsInserted.connect(self.adjust_buttons)
model.rowsRemoved.connect(self.adjust_buttons)
model.rowsMoved.connect(self.adjust_buttons)
model.modelReset.connect(self.adjust_buttons)
model.layoutChanged.connect(self.adjust_buttons)
#QtCore.pyqtSlot()
def adjust_buttons(self):
first = self.listWidget.itemAt(QtCore.QPoint())
r = self.listWidget.row(first)
self.upBtn.setVisible(r != 0 and r!= -1)
last = self.listWidget.itemAt(self.listWidget.viewport().rect().bottomRight())
r = self.listWidget.row(last)
self.downBtn.setVisible( r != (self.listWidget.count() -1) and r != -1)
#QtCore.pyqtSlot()
def moveUp(self):
ix = self.listWidget.moveCursor(QtWidgets.QAbstractItemView.MoveUp, QtCore.Qt.NoModifier)
self.listWidget.setCurrentIndex(ix)
#QtCore.pyqtSlot()
def moveDown(self):
ix = self.listWidget.moveCursor(QtWidgets.QAbstractItemView.MoveDown, QtCore.Qt.NoModifier)
self.listWidget.setCurrentIndex(ix)
#QtCore.pyqtSlot(str)
def add_item(self, text):
item = QtWidgets.QListWidgetItem(text)
self.listWidget.addItem(item)
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
window = Window()
for i in range(100):
window.add_item("item {}".format(i))
window.show()
sys.exit(app.exec_())
I am trying to make the last QPushButton visible by using method QScrollArea().ensureWidgetVisible(), but as you can see this method doesn't scroll till the last QPushButton.
Example
Could you please assist and solve my issue perhaps issue with setFrameStyle? thank you in advance.
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class Widget(QWidget):
def __init__(self, parent= None):
super(Widget, self).__init__()
self.setFixedHeight(200)
#Container Widget
widget = QWidget()
#Layout of Container Widget
layout = QVBoxLayout(self)
for _ in range(20):
btn = QPushButton("test")
layout.addWidget(btn)
widget.setLayout(layout)
#Scroll Area Properties
scroll = QScrollArea()
scroll.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn)
scroll.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
scroll.setWidgetResizable(False)
scroll.setWidget(widget)
# print(scroll.verticalScrollBar().maximum())
# vbar = scroll.verticalScrollBar()
# vbar.setValue(vbar.maximum())
#vbar.setValue(vbar.maximum())
#Scroll Area Layer add
vLayout = QVBoxLayout(self)
vLayout.addWidget(scroll)
self.setLayout(vLayout)
# items = (layout.itemAt(i) for i in range(layout.count()))
# for w in items:
# print(w)
print(layout.count())
#scroll.ensureWidgetVisible(layout.itemAt(layout.count()-5).widget(), xMargin=10, yMargin=10 )
scroll.ensureWidgetVisible(layout.itemAt(layout.count()-1).widget() )
print(layout.itemAt(layout.count()-1).widget(),"last widget")
if __name__ == '__main__':
app = QApplication(sys.argv)
dialog = Widget()
dialog.show()
app.exec_()
The problem is that for efficiency reasons widgets sizes are not calculated or updated until they are displayed, in your case the viewport of QScrollArea has not updated its size and therefore moves the scroll to an intermediate position. A possible solution is to use QTimer::singleShot() to call the function ensureWidgetVisible() a moment after it has been displayed:
import sys
from functools import partial
from PyQt5 import QtCore, QtGui, QtWidgets
class Widget(QtWidgets.QWidget):
def __init__(self, parent= None):
super(Widget, self).__init__(parent)
self.setFixedHeight(200)
#Container Widget
widget =QtWidgets.QWidget()
#Layout of Container Widget
layout = QtWidgets.QVBoxLayout(widget)
for _ in range(20):
btn = QtWidgets.QPushButton("test")
layout.addWidget(btn)
scroll = QtWidgets.QScrollArea()
scroll.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
scroll.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
scroll.setWidgetResizable(False)
scroll.setWidget(widget)
#Scroll Area Layer add
vLayout = QtWidgets.QVBoxLayout(self)
vLayout.addWidget(scroll)
last_widget = layout.itemAt(layout.count()-1).widget()
QtCore.QTimer.singleShot(0, partial(scroll.ensureWidgetVisible, last_widget))
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
dialog = Widget()
dialog.show()
sys.exit(app.exec_())
or simply call show() before:
...
last_widget = layout.itemAt(layout.count()-1).widget()
self.show()
scroll.ensureWidgetVisible(last_widget)
I got the following Test-GUI.
There is a left layout and a right layout where i want to put buttons and other things onto. The button on the right should make a QFrame unhide or hide and all the widgets in it. This works.
But after the first two clicks, the layout is different.
The TableWidget on the left layout gets resized and the button is a bit more south.
Is there an easy way to fix this?
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.main_widget = MainWidget()
self.setCentralWidget(self.main_widget)
self.show()
class MainWidget(QWidget):
def __init__(self):
super().__init__()
self.layout = QVBoxLayout()
self.tab_widget = TabWidget()
self.debugger = Dialog()
self.layout.addWidget(self.tab_widget)
self.layout.addWidget(self.debugger)
self.setLayout(self.layout)
class TabWidget(QTabWidget):
def __init__(self):
super().__init__()
self.tab1 = Tab_1()
self.addTab(self.tab1, "Tab1")
class Tab_1(QWidget):
def __init__(self):
super().__init__()
# LEFT LAYOUT BEGIN
self.table = QTableWidget()
self.table.setRowCount(1)
self.table.setColumnCount(2)
self.table.setSizeAdjustPolicy(QAbstractScrollArea.AdjustToContents)
self.table.resizeColumnsToContents()
left_hlayout = QHBoxLayout()
left_hlayout.addWidget(self.table)
# # LEFT LAYOUT END
#
# # RIGHT LAYOUT BEGIN
self.button_options = QPushButton('Options')
self.button_options.setCheckable(True)
self.button_options.toggled.connect(self.option_pressed)
right_vlayout = QVBoxLayout()
right_vlayout.addWidget(self.button_options)
# # RIGHT LAYOUT END
# MAIN LAYOUT BEGING
self.main_layout = QVBoxLayout()
self.horizontal_layout = QHBoxLayout()
self.horizontal_layout.addLayout(left_hlayout)
self.horizontal_layout.addLayout(right_vlayout)
self.main_layout.addLayout(self.horizontal_layout)
self.option = Options()
self.main_layout.addWidget(self.option)
self.setLayout(self.main_layout)
# MAIN LAYOUT END
def option_pressed(self):
if self.button_options.isChecked():
self.option.setVisible(True)
else:
self.option.setVisible(False)
class Options(QFrame):
def __init__(self):
super().__init__()
self.hide()
self.setFrameStyle(QFrame.StyledPanel | QFrame.Sunken)
self.options_layout = QFormLayout()
self.options_label = QLabel('One')
self.options_lineedit = QLineEdit('Two')
self.options_layout.addRow(self.options_label, self.options_lineedit)
self.setLayout(self.options_layout)
class Dialog(QPlainTextEdit):
def __init__(self, parent=None):
super().__init__(parent)
self.setFixedHeight(100)
pal = QPalette()
bgc = QColor(210, 210, 210)
pal.setColor(QPalette.Base, bgc)
self.setPalette(pal)
if __name__ == "__main__":
app = QApplication(sys.argv)
window = MainWindow()
sys.exit(app.exec_())