[PyQt] Designer source

[Detlev Offenbach]

Hello Henning,

I would be interested in integrating it in eric4 and eric5. However, before 
going to spend time on it I would like to be ensured of these points.

1. A version for Python2 and Python3 is made available.
2. The package is maintained and updated over the next couple of years.
3. It should work on the platforms supported by eric (Windows, Linux, Mac OS 
X).
4. Installers for Windows and Mac OS X should be provided (most people don't 
seem to like the diea to compiled such stuff themself).

Regards,
Detlev

Am Donnerstag, 22. März 2012, 20:21:38 schrieb Henning Schröder:
> If someone wants to integrate Designer here is a useable starting point:
> https://bitbucket.org/henning/pyqtdesigner/get/tip.tar.gz
> You can open, edit and save forms.
> Before testing you have to call build.sh
> This creates a C++ shared library which is loaded by Python with ctypes.
> The (important) parts were written by Dmitriy Zhukov, author of pynoto.
> I added the PyQt-glue code
> Greets
> Henning
> 
> On Fri, Mar 9, 2012 at 12:09 PM, Andreas Pakulat <apaku at gmx.de> wrote:
> > On 09.03.12 09:38:06, Hans-Peter Jansen wrote:
> >> Am Thursday 08 March 2012 23:08:09 schrieb Andreas Pakulat:
> >> > On 08.03.12 19:42:39, Detlev Offenbach wrote:
> >> > > Am Donnerstag, 8. März 2012, 09:49:41 schrieb Andreas Pakulat:
> >> > > > On 08.03.12 09:35:51, Andreas Pakulat wrote:
> >> > > > > On 07.03.12 16:14:18, JPolk wrote:
> >> > > > > > ...'cause it would make it easier for me to merge
> >> > > > > > Designer with Maya ;-)>
> >> > > > > 
> >> > > > > Write Maya in C++ ;P
> >> > > > 
> >> > > > Hmm, on a more serious note, you won't get around writing
> >> > > > C++. AFAIK the public API of the QtDesigner library (and
> >> > > > hence also the PyQt module) does not include the
> >> > > > necessary functions to actually create a designer
> >> > > > yourself. One needs to use one or two private headers
> >> > > > from QtDesigner for the necessary functions. You could of
> >> > > > course simply wrap that private API in a simple class and
> >> > > > expose that via sip to Python and then do all the rest in
> >> > > > Python.
> >> > > 
> >> > > If somebody would do that and maintain it over time I would be
> >> > > the first to use to integrate Designer into the eric IDE.
> >> > 
> >> > Its not an easy task though, we had something somewhat-working for
> >> > KDevelop4 in a plugin, but it did require some nasty hacks and
> >> > workarounds the designer API. Its simply not really meant to be
> >> > added to "arbitrary" IDE's, but mainly geared towards the
> >> > designer standalone app.
> >> > 
> >> > Note, I'm basing that information on Qt4.5/4.6, i.e. a point in
> >> > time
> >> > where QtCreator was still in its early stages. Maybe in more
> >> > recent
> >> > Qt versions this got improved to provide better integration for
> >> > QtCreator.
> >> 
> >> My humble guess is: it's easier to create a module, that resembles the
> >> main designer functionality, than wrapping that biest,
> > 
> > Actually my PyQt4 already comes with a QtDesigner module and that looks
> > somewhat complete.
> > 
> >> given, that a lot of the necessary hacks are done to work around the
> >> inflexibility of C++ for that purpose.
> > 
> > The main hackery in C++ was getting a grip on the entry-point that the
> > QtDesigner module provides to instantiate all the various parts of it
> > (action-editor, property-editor, workspace area, widget-list, gui
> > actions). The other problem was more related to decisions done for
> > KDevelop, designer really requires all .ui files to be in the same
> > workspace widget. Working around this limitation was I believe a major
> > pain point in the KDevelop plugin before it was abandoned.
> > 
> > I'm not sure how much of designer's code works around C++ limitations.
> > Some things are more workarounds for the Qt widgets not being designed
> > for something like designer in the first place (i.e. there's a
> > wrapping-widget or even just look-a-like widget for the fancies Qt
> > widgets inside designers codebase).
> > 
> > Andreas
> > 
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-- 
Detlev Offenbach
detlev at die-offenbachs.de