[Qt-interest] Derived custom widgets

[Neville Dastur]

On 30/08/10 23:08, Scott Aron Bloom wrote:
>
> You have to use QStyle::SC_COmboBoxArrow to get the size of the 
> subcontrol with QStyle::subControlRect
>
Thank you for the suggestion. Unfortunately, this just gives the size of 
the arrow icon. About 15 pixels. I have tried using the same function 
but with params such as style()->subControlRect(QStyle::CC_ToolButton, 
&opt, QStyle::SC_ToolButtonMenu, 0), but none give a reasonable size.

A small gif illustrates the desired result. So on Ubuntu the popup 
button measures 26 x 22 pixels, but obviously this is going to vary by 
style and so was looking for a generic way of getting the size.

I also thought I would illustrate the spinbox problem.



>
> There probably IS a better way.. but I don't know it J
>
>
>
> 1) I am using a fudge factor of 24 to account for the combobox drop down
>   
> arrow button. I can't find a pixel metric for it. Is there a better way
> of getting the width
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