Message: previous - next
Month: December 2017

Re: [trinity-devel] TDE on dense small screens

From: Vincent Reher <tde@...>
Date: Mon, 11 Dec 2017 16:19:43 -0800
On Monday 11 December 2017, E. Liddell wrote:
> On Sat, 9 Dec 2017 19:21:19 -0800
> Vincent Reher <tde@...> wrote:
> > The remaining issue concerns TDE window/menu controls that are too small.  These include window resizing double-arrows, window scrollbar and associated up and down arrows, the menu-submenu right arrow, list expand-collapse (+/-) controls, checkboxes, and radio buttons.
> > 
> > I suspect that these resources are part of QT3 but don't really know for sure.  I suspect QT3 because applications that do not use that toolkit (e.g. LibreOffice and Firefox) do not manifest the problem. 
> > 
> > I am hoping that somebody more knowledgeable about GUI configuration and programming can point me in the right direction.  Is this something that can be corrected via a configuration file (e.g. qtrc)?  If not, can somebody point me to where in in the source code tree I should be looking and what I would need to do to correct this?
> Widget appearances are dictated by the style code, which is applied by QT3.  You would 
> have to either fix QT3 or create a new widget style to make everything correctly HiDPI-sensitive.  
> However, you *may* be able to improve your experience somewhat by selecting the "High 
> Contrast" style and turning on "Use wider lines" in its configuration.  This will make most widgets 
> somewhat larger.  It isn't the most elegant style, though.
> If you are interested in authoring your own widget style (requires C++ knowledge, 
> unfortunately), you can find existing styles in tdelibs/tdestyles and tdeartwork/styles.
> If you want to patch QT3 directly, my guess is that you would have to look at
> qt3/src/styles/qcommonstyle.cpp , which has a lot of size-related magic constants
> you could play with.
> E. Liddell
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Thanks, your message was very helpful in clarifying a path forward. I tried the High Contrast style and while I agree that its appearance leaves a lot to be desired, it did seem to remedy matters by presenting larger more visible window/menu controls.  That says to me that modifying an existing style might provide a solution to the problem at hand.  Perhaps that won't be as modern a solution as a true "it just works" dynamic scaling of these graphical controls, but it will be good enough for me if it allows me to run TDE on laptops such as these at native resolution.

Interestingly, one of the things that was not corrected by that style was the really tiny window resizing cursor.  I investigated further and noticed that my favorite cursor theme "Xfree theme redglass" now has an annotation "incomplete for TDE" --  I had never noticed that before.  I guess the theme is incomplete because it lacks the "redglass" window resizing cursor.  Without it, this particular cursor becomes "Adwaita", a theme that apparently doesn't scale at all.  I guess I will also have to learn how to "complete" the redglass theme.