(Linux) Size of the window is not the one specified by window width and height when is set to not resizable

[LucianCrainic]

Description

Hello, i found out on Linux that when i set page.window_resizable to False the window is not resizable but the size of the window is not the one specified by page.window_width and page.window_height. The window is bigger than the specified size. I tested it on a MacOs machine and it works as expected. I emulated the bug on a VM with Ubuntu 22.04.1 LTS and Python 3.10.6 using UTM. I also tested it on a real machine with Ubuntu (same version) and i still get the same issue.

Code example to reproduce the issue:

import flet
from flet import IconButton, Page, Row, TextField, icons

def main(page: Page):
    page.title = "Flet counter example"
    page.vertical_alignment = "center"

    # if i comment out the following line then the window has the correct size
    page.window_resizable = False
    page.window_width = 200
    page.window_height = 200

    txt_number = TextField(value="0", text_align="right", width=100)

    def minus_click(e):
        txt_number.value = int(txt_number.value) - 1
        page.update()

    def plus_click(e):
        txt_number.value = int(txt_number.value) + 1
        page.update()

    page.add(
        Row(
            [
                IconButton(icons.REMOVE, on_click=minus_click),
                txt_number,
                IconButton(icons.ADD, on_click=plus_click),
            ],
            alignment="center",
        )
    )

flet.app(target=main)

Describe the results you received: When page.window_resizable is set to False the window is not resizable but the size of the window is not the one specified by page.window_width and page.window_height. The window is bigger than the specified size.

https://user-images.githubusercontent.com/32139751/236680161-31730623-7472-4b31-b5fd-f782f6a3b828.mov

Describe the results you expected: I expected when the window_resizable is set to False to have a window with the size specified by window_width and window_height that is not resizable.

Flet version (pip show flet):

Version: 0.5.2
Summary: Flet for Python - easily build interactive multi-platform apps in Python
Home-page:
Author: Appveyor Systems Inc.
Author-email: hello@flet.dev
License: Apache-2.0
Location: /home/lucian/.local/lib/python3.10/site-packages
Requires: flet-core, httpx, oauthlib, packaging, watchdog, websocket-client, websockets
Required-by:

Operating system: Linux Ubuntu 22.04.1 LTS

Additional environment details: I emulated the bug on a VM with Ubuntu 22.04.1 LTS and Python 3.10.6 using UTM. I also tested it on a real machine with Ubuntu (same version) and i still get the same issue. I also tested it on a MacOs machine and it works as expected.

[xcrong]

I am use Kubuntu 22.04.2. I encounte the same problem use your code .

There is info of my environment. Maybe it's helpful.

╰─>$ neofetch
           `.:/ossyyyysso/:.               theo@theo-kde 
        .:oyyyyyyyyyyyyyyyyyyo:`           ------------- 
      -oyyyyyyyodMMyyyyyyyysyyyyo-         OS: Kubuntu 22.04.2 LTS x86_64 
    -syyyyyyyyyydMMyoyyyydmMMyyyyys-       Host: 81YR Lenovo XiaoXin-15ARE 2020 
   oyyysdMysyyyydMMMMMMMMMMMMMyyyyyyyo     Kernel: 5.15.0-70-generic 
 `oyyyydMMMMysyysoooooodMMMMyyyyyyyyyo`    Uptime: 13 days, 4 hours, 51 mins 
 oyyyyyydMMMMyyyyyyyyyyyysdMMysssssyyyo    Packages: 2950 (dpkg), 11 (snap) 
-yyyyyyyydMysyyyyyyyyyyyyyysdMMMMMysyyy-   Shell: fish 3.3.1 
oyyyysoodMyyyyyyyyyyyyyyyyyyydMMMMysyyyo   Resolution: 1920x1080 
yyysdMMMMMyyyyyyyyyyyyyyyyyyysosyyyyyyyy   DE: Plasma 5.24.7 
yyysdMMMMMyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy   WM: KWin 
oyyyyysosdyyyyyyyyyyyyyyyyyyydMMMMysyyyo   Theme: [Plasma], Breeze [GTK2/3] 
-yyyyyyyydMysyyyyyyyyyyyyyysdMMMMMysyyy-   Icons: [Plasma], breeze-dark [GTK2/3] 
 oyyyyyydMMMysyyyyyyyyyyysdMMyoyyyoyyyo    Terminal: vscode 
 `oyyyydMMMysyyyoooooodMMMMyoyyyyyyyyo     CPU: AMD Ryzen 5 4600U with Radeon Graphics (12) @ 2.100GHz 
   oyyysyyoyyyysdMMMMMMMMMMMyyyyyyyyo      GPU: AMD ATI 03:00.0 Renoir 
    -syyyyyyyyydMMMysyyydMMMysyyyys-       Memory: 11806MiB / 15356MiB 
      -oyyyyyyydMMyyyyyyysosyyyyo-
        ./oyyyyyyyyyyyyyyyyyyo/.                                   
           `.:/oosyyyysso/:.`                                      

╰─>$ python --version
Python 3.10.6

╰─>$ pip show flet
Name: flet
Version: 0.6.2
Summary: Flet for Python - easily build interactive multi-platform apps in Python
Home-page: 
Author: Appveyor Systems Inc.
Author-email: hello@flet.dev
License: Apache-2.0
Location: /home/theo/playground/space/venv/lib/python3.10/site-packages
Requires: flet-core, httpx, oauthlib, packaging, watchdog, websocket-client, websockets
Required-by: 

[LucianCrainic]

@FeodorFitsner any news on this ?

[ndonkoHenri]

It works on windows as expected. Certainly/definitely a linux issue as you mentioned.

[LucianCrainic]

Is there any way to fix it or any idea on how to fix it ? I would love to do a PR for this project since i used it a lot for my personal projects.

[vindevoy]

I confirm that this is a problem on Linux Cinnamon also, still with flet 0.17.

Source code where I have the problem in this repo: https://gitlab.com/vindevoy/flet-fontawesome.git

Branch: bug/page.window_resizable File: tests/icons/main.py Line 53

I don't know if it is related to this, but when I close the application, I always get this error from GDK: (flet:740484): Gdk-CRITICAL **: 21:01:27.875: gdk_window_get_state: assertion 'GDK_IS_WINDOW (window)' failed