[Qgis-developer] Is there an advantage in using pyuic on command line instead of uic.loadUi in plugin source?

[Tim Sutton]

Hi


On Tue, May 6, 2014 at 8:54 AM, Nathan Woodrow <madmanwoo at gmail.com> wrote:

> I normally do it this way:
>
> base, widget = uic.loadUiType('myui.ui')
>
> class MyWidget(base, widget):
>     def __init__(self, parent=None)
>          super(MyWidget, self).__init__(parent)
>

According to the docs[1] you get the concrete class first, then the base
class in the returned tuple:

PyQt4.uic.loadUiType(*uifile*[, *from_imports=False*[,
*resource_suffix='_rc'*]])<http://pyqt.sourceforge.net/Docs/PyQt4/designer.html#PyQt4.uic.loadUiType>

Load a Qt Designer .ui file and return a tuple of the generated *form
class* and
the *Qt base class*. These can then be used to create any number of
instances of the user interface without having to parse the .ui file more
than once.

[1] http://pyqt.sourceforge.net/Docs/PyQt4/designer.html#the-uic-module

Regards

Tim


> - Nathan
>
>
> On Tue, May 6, 2014 at 4:52 PM, Tim Sutton <lists at linfiniti.com> wrote:
>
>> Hi
>>
>>
>> On Sat, Apr 26, 2014 at 2:45 PM, Anita Graser <anitagraser at gmx.at> wrote:
>>
>>> Hi,
>>>
>>> I'm wondering if there is an advantage in using pyuic to manually
>>> compile .ui files instead of just using uic.loadUi() in the plugin
>>> directly, e.g.
>>>
>>> from PyQt4 import uic
>>> self.dock = uic.loadUi( os.path.join( path, "dockwidget2.ui" ) )
>>>
>>>
>> As Martin mentioned, getting the class type back is nicer. I tested this
>> and it works nicely:
>>
>>
>> ----------------
>>
>> import os
>>
>> from PyQt4 import QtCore, QtGui, uic
>>
>> BASE_CLASS = uic.loadUiType(os.path.join(
>>     os.path.dirname(__file__), 'results_dialog_base.ui'))[0]
>>
>>
>> class ResultDialog(QtGui.QDialog, BASE_CLASS):
>>     """Dialog for showing the results of the plugin creation process."""
>>     def __init__(self):
>>         QtGui.QDialog.__init__(self)
>>         # Set up the user interface from Designer.
>>         self.setupUi(self)
>>
>> --------------
>>
>> The advantage is that you can use Qt multi-inheritance which means less
>> and cleaner code. More details in the Qt section at [1].
>>
>> [1] http://test.inasafe.org/en/developer-docs/coding_standards.html
>>
>> Regards
>>
>> Tim
>>
>>
>>
>>
>>> Thanks for any insights!
>>>
>>> Best wishes,
>>> Anita
>>>
>>>
>>>
>>> --
>>> anitagraser.com
>>> _______________________________________________
>>> Qgis-developer mailing list
>>> Qgis-developer at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>>>
>>
>>
>>
>> --
>> Tim Sutton - QGIS Project Steering Committee Member
>> ==============================================
>> Please do not email me off-list with technical
>> support questions. Using the lists will gain
>> more exposure for your issues and the knowledge
>> surrounding your issue will be shared with all.
>>
>> Irc: timlinux on #qgis at freenode.net
>> ==============================================
>>
>> _______________________________________________
>> Qgis-developer mailing list
>> Qgis-developer at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>>
>
>


-- 
Tim Sutton - QGIS Project Steering Committee Member
==============================================
Please do not email me off-list with technical
support questions. Using the lists will gain
more exposure for your issues and the knowledge
surrounding your issue will be shared with all.

Irc: timlinux on #qgis at freenode.net
==============================================
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