wxPython on Ubuntu18.04 grid scroll gives error

[akshath Singhal]

Using grid scroll on wxPython causes following error:

(wxglade_out.py:3029): Gtk-CRITICAL **: 23:59:48.646: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

The code is as follows:

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
#
# generated by wxGlade 0.8.0 on Wed Jul  3 19:57:39 2019
#

import wx
import wx.grid

# begin wxGlade: dependencies
# end wxGlade

# begin wxGlade: extracode
# end wxGlade


class MyFrame(wx.Frame):
    def __init__(self, *args, **kwds):
        # begin wxGlade: MyFrame.__init__
        kwds["style"] = kwds.get("style", 0) | wx.DEFAULT_FRAME_STYLE
        wx.Frame.__init__(self, *args, **kwds)
        self.SetSize((400, 300))
        self.panel_2 = wx.Panel(self, wx.ID_ANY)
        self.display_list = wx.grid.Grid(self, wx.ID_ANY, size=(1600,1100))
        self.__set_properties()
        self.__do_layout()
        for i in range(24):
            for j in range(24):
                self.display_list.SetCellValue(i,j,str(i))
        self.Refresh()
        self.Update()
        # end wxGlade

    def __set_properties(self):
        # begin wxGlade: MyFrame.__set_properties
        self.SetTitle("frame")
        self.display_list.CreateGrid(25, 25)       
        # end wxGlade

    def __do_layout(self):
        # begin wxGlade: MyFrame.__do_layout
        sizer_1 = wx.BoxSizer(wx.VERTICAL)
        sizer_2 = wx.BoxSizer(wx.VERTICAL)
        sizer_2.Add(self.display_list, 0, wx.EXPAND, 0)
        sizer_2.Add(self.panel_2, 0, wx.EXPAND, 0)
        sizer_1.Add(sizer_2, 1, wx.EXPAND, 0)
        self.SetSizer(sizer_1)
        self.Layout()
        # end wxGlade

# end of class MyFrame

class MyApp(wx.App):
    def OnInit(self):
        self.frame = MyFrame(None, wx.ID_ANY, "")
        self.SetTopWindow(self.frame)
        self.frame.Show()
        return True

# end of class MyApp

if __name__ == "__main__":
    app = MyApp(0)
    app.MainLoop()

[akshath Singhal]

I tried the same on Ubuntu 16 and no warning was generated. I am trying to build this open source application and require it to support most of the commonly used OS.
I believe the problem doesnt exist in libgtk3.18.9 but does in libgtk3.22.

[akshath Singhal]

Also, the problem occurs only after editing the cell value. Once the editor has been closed. That should narrow down the search for the error.

[Robin Dunn]

On Wednesday, July 3, 2019 at 11:42:21 AM UTC-7, akshath Singhal wrote:

Using grid scroll on wxPython causes following error:

(wxglade_out.py:3029): Gtk-CRITICAL **: 23:59:48.646: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

See response at https://github.com/wxWidgets/Phoenix/issues/1297

 

--

Robin

[akshath Singhal]

Thanks for the answer. Can you provide some guidance as to how these warnings can be redirected?

[Robin Dunn]

On Monday, July 8, 2019 at 6:05:19 PM UTC-7, akshath Singhal wrote:

Thanks for the answer. Can you provide some guidance as to how these warnings can be redirected?

https://www.guru99.com/linux-redirection.html

--

Robin