pyside

I would like to add mathematical expressions to the table labels (e.g.: 2^3 should be properly formatted) Here is a simple example of a table: http://thomas-cokelaer.info/blog/2012/10/pyqt4-example-of-tablewidget-usage/ setHorizontalHeaderLabels accepts string, only. I wonder if is it possible to implement somehow this matplotlib approach: matplotlib - write TeX on Qt form are there other options? I've also been trying for some time to display complex labels in the header of a QTableWidget . I was able to do it by reimplementing the paintSection method of a QHeaderView and painting manually

I've seen some example code for PySide slots that uses the @QtCore.Slot decorator, and some that does not. Testing it myself, it doesn't seem to make a difference. Is there a reason I should or should not use it? For example, in the following code: import sys from PySide import QtCore # the next line seems to make no difference @QtCore.Slot() def a_slot(s): print s class SomeClass(QtCore.QObject): happened = QtCore.Signal(str) def __init__(self): QtCore.QObject.__init__(self) def do_signal(self): self.happened.emit("Hi.") sc = SomeClass() sc.happened.connect(a_slot) sc.do_signal() the @QtCore

How could get String(Text) from QlineEdit ? I tried Like this. myArea.getList() function is get string value and check database with string value and return List self.a = QLineEdit() self.b = QlineEdit() .... self.b = self.myArea.getList(str(self.a.textChanged.connect(self.textchanged))) def textchanged(self, text): self.my_edit = text Input text in a , then a changes. read a , check data by a , b 's data created, Input text in b , read b , check data by b First, I don't know how to get QLineEdit() 's value. print QLineEdit Text works but return String. Here is a complete example how to get

I am overriden QGraphicsScene and overload 2 methods: mouseDoubleClickEvent and mouseReleaseEvent . I want different logic executing on each of this event, but I do not know how to distinguish it? At least 1 mouseReleaseEvent occured before mouseDoubleClickEvent . Cory Klein For the logic that you want to occur on a double click, put the code inside mouseDoubleClickEvent() and for the logic that you want to occur on a mouse release, put the code inside mouseReleaseEvent() . If you want to do something when the user clicks but doesn't double click, you have to wait to see if they click twice or

I am trying to get drag&drop to work between two QListViews using a custom QStandardItem. I can't find the info I need online other than this document which helped a little bit but now I'm stuck. Drag&drop from one QListView to another works fine when I use a QStandardItem to hold my data, but when I use a custom item I run into trouble, because the receiving model/view creates a QStandardItem when a custom item is dropped. Ideally I could tell the receiving model to use my custom item as the default item and otherwise just do it's thing, but I suppose it won't be that easy?! It seems that

I have an object in the heap and a reference to it. There are certain circumstances in which the object gets deleted but the reference that points to its location doesn't know that. How can I check if there is real data in the heap? For example: from PySide import * a = QProgressBar() b = QProgressBar() self.setIndexWidget(index,a) self.setIndexWidget(index,b) Then the a object gets deleted but print(a) returns a valid address. However if you try a.value() - runtime error occurs (C++ object already deleted). a is None returns False . use sip module, read more about sip here import sip a =