DolphinQt: Replace MappingButton bold text with graphical indicators.

[jordan-woyak]

The bold text was ugly and this is more visually similar to the other indicators.

Screencast_20250117_235817.webm

[MayImilae]

MUCH better.

[Dentomologist]

One nice thing that I didn't see highlighted in the video is that the indicators will show partial values in the range 0-1; timer(1) demonstrates this well.

On my Windows 11 computer empty QLabels have a width of 6, which ButtonIndicator's sizeHint divides in half to have a width of 3. Draw then subtracts 2 to make room for the borders, meaning the actual indicator is only a single pixel wide and is a bit hard to see. I think having a platform-independent target width and adjusting it for the screen's DPI would be a better approach.

You clamp the input value to at most 1, but negative values will cause the indicator to cover the row of pixels forming the lower border, outside the intended indicator area.

[jordan-woyak]

One nice thing that I didn't see highlighted in the video is that the indicators will show partial values in the range 0-1; timer(1) demonstrates this well.

On my Windows 11 computer empty QLabels have a width of 6, which ButtonIndicator's sizeHint divides in half to have a width of 3. Draw then subtracts 2 to make room for the borders, meaning the actual indicator is only a single pixel wide and is a bit hard to see. I think having a platform-independent target width and adjusting it for the screen's DPI would be a better approach.

You clamp the input value to at most 1, but negative values will cause the indicator to cover the row of pixels forming the lower border, outside the intended indicator area.

Thanks for testing. I've adjusted the size calculation and fixed the clamping math.
Here it is on Windows now:

[Dentomologist]

Tested, LGTM.

[dreamsyntax]

Re-tested new draw