[Lazarus] Bug? Form (in design mode) shrinks every time i click on a component in the palette

[Salvatore Coppola]

about 30 pixel recall me scrollbar width

2015-04-17 13:12 GMT+02:00 Kostas Michalopoulos <badsectoracula at gmail.com>:

> So i have this weird problem under Linux with the GTK2 backend (it doesn't
> happen in the Qt backend): every time i click on a component button in the
> palette, the designed form shrinks a bit (about 30 pixels or so). This
> happens in the stable 1.2 version, 1.4RC and trunk. Deleting ~/.lazarus etc
> doesn't fix it so it isn't a settings issue.
>
> I tried to debug it a bit by adding breakpoints in SetBounds, DoOnResize,
> etc but couldn't find where the resize request comes from (OnResize stuff
> comes from a "WM" message). What is even more weird, commenting out the
> OnClick code in the component palette so that it isn't handled at all,
> still causes it - i suspect some weird combination of GTK+ events might
> cause it since the buttons are still pressed. Although TBH this was mostly
> "shooting blind" trying to find some clue.
>
> The only thing i suspect is the window manager i'm using, Window Maker,
> might not support some of the more recent window hint/style/etc stuff
> (although i'm using the latest version and is in active development since a
> few years now). Steam also seems to have trouble with interacting with
> wmaker, but that one implements its own widgets and it might be a bug they
> didn't bother to fix. Every other program i've tried seems to work fine
> with wmaker so i'm not sure if it is that (and besides it works fine with
> the Qt backend).
>
> Does anyone have any idea what might cause this and how to fix it (no,
> replacing wmaker isn't an option :-P besides if it is a bug there i'll just
> fix wmaker)?
>
>
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