Adjust gui brightness

[Lodorot]

Hi,

I would like to add functionality for adjusting the brightness of the gui to my app. So that the color of text, buttons, ... could be changed to a lighter or darker color by the user.

I've seen that there is the possibility to define style sheets but as I would like to have about 100 brightness steps 100 hand edit qss files isn't that nice.


Thank you for all ideas. I really need this.


Lodorot

PS: I'm using Qt 4.5.1

[cydside]

Take a look here (Issue 29, Translucent Widgets in Qt), maybe it's what you're looking for.

[Lodorot]

@cydside Could you specify how translucet widgets can help me changing the color of all the gui widgets in my window to a darker or lighter color?

Thanks

Lodorot

[aamer4yu]

Cant say about the translucent widgets... but you can try the following with style sheets -
Define your style sheet with some variable multiplied by brightness... something like -

QWidget
{
background-color: rgb(234* _BRIGHTNESS_ , 134* _BRIGHTNESS_ , 34* _BRIGHTNESS_ );
}

QWidget
{
background-color: rgb(234* _BRIGHTNESS_ , 134* _BRIGHTNESS_ , 34* _BRIGHTNESS_ );
}

To copy to clipboard, switch view to plain text mode 

Then read the style sheet in your code, replace the _BRIGHTNESS_ with your desired value ( 0-1) and apply the style sheet.

Hope this will give you the desired effect