pyside

I'm trying to create something similar to terragens node network view in python using PySide. I subclassed QGraphicsRectItem using this code. class Node(QGraphicsRectItem): def __init__(self,pos): QGraphicsRectItem.__init__(self,pos.x()-100,pos.y()-30,200,60) self.setFlag(QGraphicsItem.ItemIsMovable,True) (...) Which gives this (with some fancy painting): I'd like to implent connecting nodes by dragging the mouse from one small rectangle to another, but this results in moving the whole node. So I don't want the QGraphicsRectItem getting moved when the mouse is pressed inside a small rectangle.

I am trying to run a process in a separate thread but it is freezing my Gui and I cant understand why. I am initialising the thread in the init function of my class: self.cipher = Cipher() self.cipher_thread = QThread() self.cipher.moveToThread(self.cipher_thread) self.cipher_thread.started.connect(lambda: self.cipher.encrypt(self.plaintext_file_path, self.ciphertext_file_path, self.init_vector, self.key)) self.cipher_thread.start() The encrypt method of the cipher class is: def encrypt(self): # check that both the key and the initialisation vector are 16 bytes long if len(self.k) == self.key

I have problems implementing Qt tree model with lazy loading using canFetchMore() and fetchMore() . I have this code: from PySide.QtCore import Qt, QAbstractItemModel, QModelIndex from PySide.QtWidgets import QTreeView, QApplication BATCH_SIZE = 100 class ObjectItem(object): def __init__(self, parent, name, data, row): self.parent = parent self.name = name self.data = data self.row = row self.hasChildren = False self.canFetchMore = False # ints have no children if isinstance(data, int): return self.childCount = 0 self.childItems = [] if len(data) > 0: self.canFetchMore = True self.hasChildren

I'm using PySide/PyQt, but this is a general Qt question. Is there a way to set up a QFormLayout so that labels are centered vertically without having to explicitly create the QLabel's and set their vertical size policy to expanding first? When the widget in column 2 is taller than my label, I want my label to be centered vertically with the widget, rather than aligned with it's top... Here's an example script that demonstrates the problem. I've colored the labels red to better demonstrate their size behavior. from PySide import QtCore, QtGui app = QtGui.QApplication([]) widget = QtGui.QWidget

What is the best approach for wrapping a custom C++ library with custom Qt display widgets in Python for using in a PySide based QApplication? Does the C++ library need special treatment for wrapping with SWIG? Will wrapped Qt widgets integrate properly with PySide? I would appreciate any comments on the appropriate nomenclature needed to refine my unsuccessful searches on this subject. The Shiboken bindings tool used to generate the PySide bindings for Qt turns out to be the right tool for the job. The basic procedure for generating the bindings for a custom C++ library is outlined here: http