[Interest] Cross-platform font normalization best practice

[Hamish Moffatt]

On 13/05/15 22:06, Bob Hood wrote:
>
> So, to make OS X look close to the Windows default settings, I have to 
> use a font and/or size that is different than the OS X default 
> settings.  This entails manually changing at runtime.  I was wondering 
> if there was a built-in mechanism for handling that.
>
> Adding a platform-specific section to the MainWindow constructor, just 
> following the setupUi() call, appears to achieve what I'm after:
>
>     ui->setupUi(this);
>
> #ifdef _MACOS
>     // this normalizes the appearance of the dialog to look more like 
> Windows.
>     this->setStyleSheet("font: 11pt \"Lucida Grande\";");
>     ui->label_Intro_Line_1->setStyleSheet("font: 18pt \"Tahoma\";");
>     ui->label_Intro_Line_2->setStyleSheet("font: 18pt \"Tahoma\";");
> #endif
>
>
> But it just feels clunky to me, since changes to the default Windows 
> settings in the *.ui file will require modification of the separate 
> C++ code to match.  Having platform-specific sections in the *.ui file 
> itself would seem to be a more elegant approach.
>

Maybe you could set up font substitutions (QFont::insertSubstitution()) 
from a generic name to a different real font on each platform, and then 
use that generic name in your stylesheet/code instead? (I haven't tried 
this.)

Alternatively, if you just want one font throughout, or mostly 
throughout, you can set it as your default font with 
QApplication::setFont(), then don't specify the font names at all in 
your style sheets. This is what we're doing here, although we do use the 
same font on both platforms.


Hamish



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