PyQt: Get the position of QGraphicsWidgets in a QGraphicsGridLayout

Posted by Chris Phillips on Stack Overflow See other posts from Stack Overflow or by Chris Phillips
Published on 2010-05-10T00:45:19Z Indexed on 2010/05/10 0:48 UTC
Read the original article Hit count: 390

Filed under:

pyqt

|

qt

|

python

I have a fairly simple PyQt application in which I'm placing instances of a QGraphicsWidget in a QGraphicsGridLayout and want to connect the widgets with lines drawn with a QGraphicsPath. Unfortunately, no matter what I try, I always get (0, 0) back as the position for both the start and end widgets.

I'm constructing the graph with a recursive function that adds widgets to the scene and layout. Once the recursive function is complete, the layout is added to a new widget, which is added to the scene to show everything. The edges are added to the scene as widgets are created.

How do I get a non-zero position of any of the widgets in the grid layout?

© Stack Overflow or respective owner

Related posts about pyqt

pyqt QTreeWidget setItemWidget dissapears after drag/drop

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to keep a widget put into a QTreeWidgetItem after a reparent (drag and drop) using QTreeWidget.setItemWidget() But the result, if you compile the following code - is that the widget inside the QTreeWidgetItem disappears. Any idea why? What code would fix this (repopulate the QTreeWidgetItem… >>> More
How to resize QInputDialog, PyQt

as seen on Stack Overflow - Search for 'Stack Overflow'
I am getting input with this here areaInput = QtGui.QInputDialog.getText(self, "Copy Area", "New Area Name:", 0) However I would like to make the dialog box larger, I've tried things such as QtGui.QInputDialog.resize(400, 400) However it says "the first argument must be a QWidget class" and… >>> More
Applying atyle sheets in pyqt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello all, If i apply a property to a parent widget it is automatically applied for child widgets too.. Is there any way of preventing this?? For example if i set background color as white in a dialog the button,combo boxes and scroll bars looks white as it lacks it native look(have to say it's unpleasant… >>> More
Linking a qtDesigner .ui file to python/pyqt?

as seen on Stack Overflow - Search for 'Stack Overflow'
So if I go into QtDesigner and build a UI, it'll be saved as a .ui file. How can I make this as a python file or use this in python? >>> More
Linking a qtDesigner .ui file to python/pyqt?

as seen on Stack Overflow - Search for 'Stack Overflow'
So if I go into QtDesigner and build a UI, it'll be saved as a .ui file. How can I make this as a python file or use this in python? >>> More

Related posts about qt

qt cannot open input file 'c:\Qt\qt\lib\qtmaind.lib'

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am using qt 4.5 I have created a project and I want to compile on visual studio 2008 for windows mobile 6.0 So I have created the project files doing this: D:\Projects\Phone_PDA\Phone_PDA>set QMAKESPEC=win32-msvc2008 D:\Projects\Phone_PDA\Phone_PDA>qmake -tp vc The VS project was… >>> More
Qt Linking Error.

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I configure qt-x11 with following options ./configure -prefix /iTalk/qtx11 -prefix-install -bindir /iTalk/qtx11-install/bin -libdir /iTalk/qtx11-install/lib -docdir /iTalk/qtx11-install/doc -headerdir /iTalk/qtx11-install/include -datadir /iTalk/qtx11-install/data -examplesdir /iTalk/qtx11-install/examples… >>> More
To connect Gstreamer with Qt in order to play a gstreamer video in the Qt Widget

as seen on Stack Overflow - Search for 'Stack Overflow'
I tried using phonon to play the video but could not succeed. Off-late came to know through the Qt forums that even the latest version of Qt does not support phonon. Thats when i started using Gstreamer.Any suggestions as to how to connect the Gstreamer window with the Qt widget?My aim is to play… >>> More
How to mix C++ Qt objects and Qt Jambi objects

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to combine some existing Qt code written in C++ with some code written in Java using Qt Jambi, but I'm not quite sure how to do it. I'm basically trying to acieve two things: Pass a QObject from C++ to Java using JNI Pass a Qt Jambi QObject from Java to C++ It looks like I can… >>> More
La rubrique Qt sur Facebook, devenez vous aussi fan et suivez l'actualité Qt depuis Facebook

as seen on Developper.com - Search for 'Developper.com'
Comme vous l'avez probablement remarqué, les réseaux sociaux explosent de partout, Developpez.com et toutes ses rubriques se doivent donc, comme toujours auparavant, de suivre l'évolution en s'ouvrant à ces réseaux sociaux. Vous pouvez donc désormais suivre l'actualité de la rubrique sur Facebook… >>> More