[Interest] How to force scroll bars always visible on Mac

[Calogero Mauceri]

Hi John,

Unfortunately even if I hover where the scroll bars *should* be, they 
never show up, neither on other mac applications.
I know I can change that behavior from the machine settings, but that 
will solve the problem on my machine, my application users will still 
have the problem.

I was just wondering if Qt exposes some functionalities for forcing the 
scroll bars to be always visible. I tried to change the ScrollBarPolicy 
for vertical and horizontal scrollbars to be |Qt::ScrollBarAlwaysOn|, 
but that did not change anything, the scroll bars all always hidden.

Calogero

Il 4/7/2015 6:03 PM, John Weeks ha scritto:
> Whether you agree with the design or not, that's the way it is. Presumably, if you hover where the scroll bars *should* be, they should show up if they are needed. As a 25-year Macintosh user I hate it!
>
> The behavior is controlled by the user via the General control panel. There are three radio buttons for "Show scroll bars:" Automatically (what I described), When scrolling (I think that's like when you drag with two fingers), and Always. Being an old-time Mac user who believes in the old Mac HIG that said we shouldn't have hidden UI elements, I have mine set to Always.
>
> -John Weeks
>
>
>> On 07 Apr 2015, at 8:01 am, Calogero Mauceri <mauceri at actgate.com> wrote:
>>
>> Hi all,
>>
>> I have a tricky problem on Mac OS X 10.10 related to scrolling content
>> on a QGraphicsView.
>>
>> I have a QGraphicsView where I reimplemented the wheelEvent to zoom
>> in/out the content of the view. The only way I have for scrolling the
>> content is clicking and dragging the scroll bars. Actually on Mac OS X
>> 10.10 scroll bars are hidden by default and shown only when the user
>> scrolls the area through mouse or trackpad. Having reimplemented the
>> default behavior the scrollbars in my QGraphicsView are never shown.
>> Is there any Qt way to force the scroll bars to be always visible? Do
>> you have any other suggestion on how to fix this problem?
>>
>> Thanks,
>>      Calogero
>>
>> -- 
>> Calogero Mauceri
>> Software Engineer
>>
>> Applied Coherent Technology Corporation (ACT)
>> www.actgate.com
>>
>>
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-- 
Calogero Mauceri
Software Engineer

Applied Coherent Technology Corporation (ACT)
www.actgate.com

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