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

[Kostas Michalopoulos]

Ah yeah, i forgot to mention that the shrink is vertical only.

On Fri, Apr 17, 2015 at 2:03 PM, Salvatore Coppola <coppolastudio at gmail.com>
wrote:

> 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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