On 09/30/2013 06:36 PM, Glenn Ramsey wrote:
On 01/10/13 14:22, John Fabiani wrote:
On 09/30/2013 06:11 PM, John Fabiani wrote:
-------- Original Message --------
Subject: Re: [PyQt] c++ app integrate PyQt
Date: Mon, 30 Sep 2013 17:51:28 -0700
From: John Fabiani <jo...@jfcomputer.com>
To: Matt Newell <newe...@blur.com>
On 09/30/2013 05:24 PM, Matt Newell wrote:
> On Monday, September 30, 2013 04:51:24 PM John Fabiani wrote:
>> Hi,
>> I have an existing Qt C++ app (Qt5.1.1). Is it possible to
integrate
>> PyQt into the project. I'd like the PyQt to have access to some
of the
>> C++ functions, C++ classes, but I want to write frames,windows,
all the
>> controls in PyQt including accessing the database. Most important I
>> want only one app loop. I was able in get PythonQt working but
realized
>> that it was a lot of work to get it to do what I want - that is to
>> create a complete sub-program written in python.
>>
>>
>> Any hints or links will be helpful.
>>
>> Thankis in advance,
>>
>>
>> Johnf
>
> Yes it's possible. You have to wrap any c++ classes you want to
use from
> python using sip. Then you need to embed python in your app, or
rewrite the
> main part of the application in python.
>
> You'll want to first split your app into a library so you can test
your python
> bindings from a regular python script or cmd interpreter. Start
with one
> class to get your feet wet and go from there.
>
> Matt
That sounds encouraging. But it lacks a little detail - like how does
one embed python (PyQt) into a C++ app. The sip I sort of understand
and it is doable. I only need a few C++ classes and that makes sense.
But I don't have a clue how or where to start on embeding PyQt. Does
someone have an example or a link explaining the details.
Johnf
Write the right phrase in a google search and you find things. But I
wonder if
this the best solution? It's also old.
http://acaciaecho.wordpress.com/2011/08/15/hybridqtwithpyqt/
Anyone, have opinion?
Johnf
From your spec (writing all of the GUI in PyQt) it sounds like you
should be writing your C++ components as Python extension modules
rather than embedding a Python interpreter in your app.
There are several ways to do that: SIP, SWIG, Boost.Python.
Also if you do this then your app will play nicely with packaging
tools like Py2exe and PyInstaller. If you have .ui files you should be
able to reuse them with minimal or no changes.
Glenn
Sorry if I mis-led you somewhere. The C++ app has been around for many
years and is NOT going to be rewritten anytime soon. I want to
integrate a python solution that will allow me to create new content
using python all running within the C++ app loop. I'm hoping I can do
it with PyQt. Creating the library would work - it would allow me to
test and work in python. There are only a few things I need the python
to know about from the C++ side - the login data, a couple of pieces of
data, and one Class. After those minor things I don't need a thing.
That said, it would be nice if the python side could call up some of the
C++ forms.
Johnf
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