[Eric] Re: QT Designer & Plugins on PyQT

[Сергей Гринько]

I suggest to add at the level of the project, two new properties:
1) "PYQTDESIGNERPATH" - the way the search module plug-ins for QT-Designer
(custom widgets)
2) "PYTHONPATH" - module search path for the realization of QT-Designer
(custom widgets)

The module UserInterface.py in class UserInterface method __designer () add
the code reads these properties and changing environment.
Example:

import os
...
class UserInterface(KQMainWindow):
    ...
    # Set a specified environment variable with a directory name.
    def setEnvDesigner(self, var_name, dir_name):
        # Convert the relative directory name to an absolute one.
        os.putenv(var_name, os.path.join(self.project.ppath, dir_name))

    def __designer(self, fn = None, version = 0):
        ...
        # Tell Qt Designer where it can find the directory containing the
plugins and
        # Python where it can find the widgets.
        # "kernel/UI/widgets/plugins" - sample path (must be read from the
properties of the project)
        # "kernel/UI/widgets" - sample path (must be read from the
properties of the project)
        self.setEnvDesigner("PYQTDESIGNERPATH", "kernel/UI/widgets/plugins")
        self.setEnvDesigner("PYTHONPATH", "kernel/UI/widgets")
        #
        proc = QProcess()
        if not proc.startDetached(designer, args):
            KQMessageBox.critical(self,
                self.trUtf8('Process Generation Error'),
                self.trUtf8(
                    '<p>Could not start Qt-Designer.<br>'
                    'Ensure that it is available as <b>%1</b>.</p>'
                ).arg(designer))

Following these changes, everything works well.

9 июня 2009 г. 13:08 пользователь Сергей Гринько
<sergey.grinko at gmail.com>написал:

> I use Eric 4.3.4
> How to make it possible to start with QT Designer, designate the path
> search directory containing the plugins and Python where it can find the
> widgets.
> Example:
>
> # Set a specified environment variable with a directory name.
> def setEnvironment(env, var_name, dir_name):
>     # Convert the relative directory name to an absolute one.
>     dir = os.path.join(os.path.dirname(os.path.abspath(__file__)),
> dir_name)
>
>     # Remove any existing value so that we have a controlled environment.
>     idx = env.indexOf(QtCore.QRegExp("^%s=.*" % var_name,
> QtCore.Qt.CaseInsensitive))
>
>     if idx >= 0:
>         env.removeAt(idx)
>
>     env << "%s=%s" % (var_name, dir)
>
> # Tell Qt Designer where it can find the directory containing the plugins
> and
> # Python where it can find the widgets.
> env = QtCore.QProcess.systemEnvironment()
> setEnvironment(env, "PYQTDESIGNERPATH", "python")
> setEnvironment(env, "PYTHONPATH", "widgets")
>
> # Start Designer.
> designer = QtCore.QProcess()
> designer.setEnvironment(env)
> ....
>
>


-- 
С уважением Гринько Сергей
Email: sergey.grinko at gmail.com
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