On 10/01/2013 02:46 AM, David Boddie wrote:
On Tue Oct 1 03:05:55 BST 2013, John Fabiani wrote:
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.
I've done things with embedding in the past and never really liked the
process of starting up a Python interpreter from within a C++ application.
For something I'm currently working on, I decided to do what Matt suggests,
which is to build the application as a library - for a qmake-based build
system, this basically means changing the TEMPLATE line in its .pro file to
TEMPLATE = lib
Then you create wrappers for the classes you need. If your application's
main() function is simple - creates an application, creates a window, opens
it - then you can start by creating a wrapper for the window class and
writing an equivalent Python script to start the application.
I would put some examples on the (unofficial) PyQt Wiki but it appears to
have disappeared again.
David
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If you would forward an example to me it would very helpful. I think
both of you are suggesting that I wrap the C++ (BTW a very large app)
and then write the entire program using PyQt. Is that correct. You also
suggest you succeeded integrating PyQt into a C++ but were disappointed
with the results? Could you explain beyond -you didn't like loading a
python interpreter. What was the down side. Load time seems very fast
with PythonQt. I don't know what the load time of PyQt would be - but
if it was under 10 seconds - that would be ok.
I may have to move to QML and javascript (a terrible language) - short
of wrapping everything and or rewriting the entire program.
BTW thanks guys for helping me.
Johnf
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