When you assign a widget as the parent of a QLayout by passing it into the constructor, the layout is automatically set as the layout for that widget. In your code you are not only doing this, but explicitly calling setlayout(). This is no problem when when the widget passed is the same. If they … Read more
What you need is Pyside QIcon.fromTheme function. Basicaly it creates QIcon object with needed icon from current system theme. Usage: undoicon = QIcon.fromTheme(“edit-undo”) “edit undo” – name of the icon “type”https://stackoverflow.com/”function” can be found here This works on X11 systems, for MacOSX and Windows check QIcon documentation QIcon.fromTheme Edit Inserting this from the website, since … Read more
For the complete noobs at PySide and .ui files, here is a complete example: from PySide import QtCore, QtGui, QtUiTools def loadUiWidget(uifilename, parent=None): loader = QtUiTools.QUiLoader() uifile = QtCore.QFile(uifilename) uifile.open(QtCore.QFile.ReadOnly) ui = loader.load(uifile, parent) uifile.close() return ui if __name__ == “__main__”: import sys app = QtGui.QApplication(sys.argv) MainWindow = loadUiWidget(“:/forms/myform.ui”) MainWindow.show() sys.exit(app.exec_())
If you’re coming here from Google and not having luck with the accepted answer, that’s because you’re missing the other secret invocation: QScrollArea::setWidget. You must create and explicitly identify a single widget which is to be scrolled. It’s not enough to just add the item as a child! Adding multiple items directly to the ScrollArea … Read more
Firstly, just be aware that Qt already uses the concept of views and models but that’s not actually what you’re after. In short the Qt MCV concept is a way to automatically link a widget (e.g. a QListView) to a data source (e.g. a QStringListModel) so that changes to the data in the model automagically … Read more
Yes, there is QComboBox.findText, which will return the index of the matched item (or -1, if there isn’t one). By default, the search does exact, case-sensitive matching, but you can tweak the behaviour by passing some match-flags as the second argument. For example, to do case-insensitive matching: index = combo.findText(text, QtCore.Qt.MatchFixedString) if index >= 0: … Read more
Override the closeEvent method of QWidget in your main window. For example: class MainWindow(QWidget): # or QMainWindow … def closeEvent(self, event): # do stuff if can_exit: event.accept() # let the window close else: event.ignore() Another possibility is to use the QApplication‘s aboutToQuit signal like this: app = QApplication(sys.argv) app.aboutToQuit.connect(myExitHandler) # myExitHandler is a callable
This can be solved by setting the resize-mode for each column. The first section must stretch to take up the available space, whilst the last two sections just resize to their contents: PyQt5: header = self.table.horizontalHeader() header.setSectionResizeMode(0, QHeaderView.Stretch) header.setSectionResizeMode(1, QHeaderView.ResizeToContents) header.setSectionResizeMode(2, QHeaderView.ResizeToContents) PyQt6/PyQt5: header = self.table.horizontalHeader() header.setSectionResizeMode(0, QHeaderView.ResizeMode.Stretch) header.setSectionResizeMode(1, QHeaderView.ResizeMode.ResizeToContents) header.setSectionResizeMode(2, QHeaderView.ResizeMode.ResizeToContents) PyQt4: header = … Read more
This link explains the following about the pyqtSlot decorator: Although PyQt4 allows any Python callable to be used as a slot when connecting signals, it is sometimes necessary to explicitly mark a Python method as being a Qt slot and to provide a C++ signature for it. PyQt4 provides the pyqtSlot() function decorator to do … Read more
It should be enough to create an empty virtualenv and then copy the contents of the …/site-packages/PyQt4 directories into it. I suggest to install PyQt4 once globally, make a copy of the directory, uninstall it and then use this trick to create VEs.