Gtk-Warning: Drawing a Gadget with Negative Dimensions

[jriyyya]

I reckon the warning is caused by the MenuItem class

MenuItem class is imported from sugar3.graphics.menuitem and as is visible in the above screenshot, it's causing Gtk to throw a warning

This might be a deprecation issue or an issue with how the alignment is being set for the MenuItem class as seen here

[chimosky]

Haven't taken a look but you can copy the sugar3 repo into the memorize activity directory and test your assumptions there, you could start by changing the alignment and see if the warnings persist.

Looking at git blame the line you're looking at was added for accelerator support for menu items.

Also for future logs, copying and pasting the errors and enclosing them in ticks makes it easier to view and copy if necessary.

[jriyyya]

After digging down, I found that this warning is related to GTK version 3.20.0 which was fixed in later versions. Currently the version used in this activity is 3.25.5 which by expected behavior should not show this warning.

I am still wondering what might be the reason for it.

Also I tested my assumptions with the way you suggested, turns out it was not related to it, although the warning can be ignored through some ways which I am trying to figure out.

[quozl]

Thanks for that. The activity does not specify an exact version, only a minimum 3.0. It does not happen when I use GTK 3.24.20 tested on Ubuntu 20.04. If it does not happen for you with GTK 3.25.5, and if there is a known fix, then there's nothing for us to do.

However, where did you find this warning was fixed, and how is it that you are using GTK 3.20.0 in the first place?

[jriyyya]

However, where did you find this warning was fixed, and how is it that you are using GTK 3.20.0 in the first place?

After I was satisfied that it has nothing to do with our code, I searched up internet and realised prior to 3.20.0 some people were getting this warning which was resolved after that.

Example1
Example 2

Also
Through this I thought the warning can be avoided but when i tried this, it was creating other critical warning so avoided doing so.

[quozl]

Thanks. In your opening comment of the issue you showed a screenshot of the warning. What version of GTK was used in that context?

[jriyyya]

It was 3.25.5

[quozl]

Hmm, okay, so you're saying the message happens with GTK 3.25.5, and I've been unable to reproduce it on GTK 3.24.20.

Next steps for this issue may be;

• verify that the sugar3 code is calling GTK properly,
• find the change between 3.24.20 and 3.25.5 that introduced the problem.

I tried cloning what I thought was the GTK git repository, but it stops at 3.24.37, and I can't find any release notes in the documentation tree beyond 3.22.

[jriyyya]

Hmm, okay, so you're saying the message happens with GTK 3.25.5, and I've been unable to reproduce it on GTK 3.24.20.

I was wondering if you were reproducing this by changing the board size.

As the menuitem widget is not triggered if we do not change the board size, thereby not getting the warning.

[quozl]

Ah, okay. Yes, the warning appears.

(sugar-activity3:1340): Gtk-WARNING **: 06:59:00.076: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node menuitem owner SugarPaletteHeader)

Next step is to verify that the sugar3 code is calling GTK properly.

Triggering a traceback or core dump at the point of the warning may help with diagnosis.

[sparshg]

On Gtk 3.24.37,
The error occurs even if you just hover over the 'load-demo-games' button, the 'change-size' button and the font button in edit game, all having MenuItem

Replaced MenuItem with its parent class Gtk.ImageMenuItem, issue persists
(from gi.repository.Gtk import ImageMenuItem as MenuItem)