Seems that on Mac OS FillColor(), FrameColor() and TextColor() are not returning dynamic results when changing the system’s appearance mode from light to dark or from dark to light.
Feedback case: <https://xojo.com/issue/54786>
Does anyone have a work around for this?
This sort of seems to work (just extracting a color from the 64-bit numbers) but I’m not sure if it’s really “correct”. I’m worried that it will disable blending, etc. that the semantic colors are supposed to have because I wasn’t able to include the first part of the 64-bit value. The resulting colors more or less “look” pretty close though…
[code]dim bg as color
dim fg as color
dim bgValue as color
if IsDarkMode() then
bg = &c252525
fg = &cFFFEFE
bgValue = &c252525
else
bg = &cE7E7E7
fg = &c000000
bgValue = &cE7E7E7
end if[/code]
Read the Documentation on Xojo’s DarkMode implementation.
You don’t query the Colors in a Graphics context (such as in Canvas.Paint).
Or in other words: In a Canvas.Paint Event you’ll get the appropriate colors.
But I agree, it’s a bit unfortunate that Xojo doesn’t provide TextColor, FillColor, … globally in a dynamic way.
TextColor, FillColor, and the like are available globally even outside the Paint event. I’m reluctant to share this information as many people abuse drawing. However, there are needs for it - watch TextArea fail during a light/dark switch.
When I tried to correct this issue by taking advantage of the AppearanceChanged event (a workaround I should not have to do) I discovered the same issue Isaac has. <https://xojo.com/issue/54616>
The issue you guys are running into is that the underlying system color (which is where we pull these colors from) is not guaranteed to have changed until a graphics context is painted, even though the system notifies you that the user has changed the system appearance.
See the updated example project in <https://xojo.com/issue/54786>
In one Label, the current Text/Fill/…-Color is updated in a Timer. And there is a Canvas.Paint
The Canvas does update the Colors - the Timer (which is accessing the “global” one), never does.
This somehow contradicts with what you’re saying
I would then expect the “global” one to change at least after the Canvas.Paint has fired when switching Dark/Light-Mode.
See also our example here for list boxes:
https://www.mbsplugins.de/archive/2019-01-23/Alternating_row_colors_for_Dar