PySide, dynamically loaded UI and PyQtGraph

[Sébastien Celles]

Hello,

I'm trying to load a .ui dynamically using PySide QUiLoader

I did

from PySide import QtCore, QtGui, QtUiTools

from PySide.QtGui import *

from PySide.QtCore import *

import pyqtgraph as pg

from pyqtgraph.Qt import QtCore, QtGui

class PlotWidget(QWidget):

    def __init__(self, parent):

        super(TimelinePane, self).__init__()

        print '\tPlotWidget init 1' # This doesn't print.

        

class MainWindow(QtGui.QDialog):

    def __init__(self, parent = None):

        super(MainWindow, self).__init__(parent)

        loader = QtUiTools.QUiLoader()

        

        #loader.registerCustomWidget(PlotWidget)

        

        path = os.path.dirname(os.path.abspath(__file__))

        uiFile = os.path.join(path, "mainwindow.ui")

        self.ui = loader.load(uiFile)

            

    def show(self):

        self.ui.show()

if __name__ == '__main__':

    app = QtGui.QApplication(sys.argv)

    d = MainWindow()

    d.show()

    app.exec_()

You can see also as attachment mainwindow.ui

I have promote a graphicsView to a personnal class "PlotWidget"

<widget class="PlotWidget" name="graphicsView"/>

but I get the following message

"QFormBuilder was unable to create a custom widget of the class 'PlotWidget'; defaulting to base class 'QGraphicsView'."

but a QGraphicsView appears instead of my PlotWidget

If I uncomment 

loader.registerCustomWidget(PlotWidget)

I get these warning messages

"QFormBuilder was unable to create a custom widget of the class 'PlotWidget'; defaulting to base class 'QGraphicsView'."

"Empty widget item in QHBoxLayout 'horizontalLayout_6'."

Designer: The creation of a widget of the class '' failed.

Designer: The creation of a widget of the class '' failed.

Designer: The creation of a widget of the class '' failed.

and my PlotWidget doesn't appears

I would prefer to have a dynamically loaded ui (with .ui file)

instead of generating code with pyside-uic

I really hope you can help me

Kind regards

Sébastien

[amdo...@gmail.com]

I might be missing it, but it doesn't look like you actually reference the pyqtgraph plot widget class anywhere, as your PlotWidget doesn't actually inherit the pyqtgraph one. I think simply changing your class definition to:

class PlotWidget(pg.PlotWidget):

and then enabling the custom widget line might be enough. Hopefully that is enough to push you in the right direction. I can tell you that am able to use the UI Loader for my application by a similar method without issues.

[scls]

Thanks a lot...

I've just fixed this issue using:

class PlotWidget(pg.PlotWidget):

    def __init__(self, parent):

        super(PlotWidget, self).__init__()

        print '\tPlotWidget init 1' # This doesn't print.