Wind arrow infobox not updating according to heading variations #914
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Wind arrow is updated when clicking on info box and when wind is changing but not at fixed time interval (like Next arrow) Tested with XCSoar 7.23 |
fb
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This commit adds a kind of serial number or digest number which identifies the current contents; if that number doesn't change, the buffer doesn't need to be redrawn. This is mostly important on the Kobo when a fast vario is connected; it will trigger lots of redraws, and the Kobo is very slow at updating the screen. Closes #297 Closes #665
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The wind arrow angle inside the Wind Arrow infobox is not being updated on heading variations because the arrow re-paint function is not continuously being triggered by changes in heading. The patch adds the missing heading change triggers - both for measured heading (via `heading_available`) and computed heading based on track data (via `track_available`). Fixes XCSoar#914
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XCSoar versions having and not having the problem
7.12 and newer (tested on Kobo Touch and WIN64).
Works as expected on 7.11 and older.
Expected behavior
When the aircraft changes heading, the wind arrow infobox should update to show the relative wind direction (with aircraft nose pointing to the top of the screen)
Actual behavior
The arrow always stays in the same position, even if the numerical values may change; the arrow direction changes only when you touch/interact with the infobox.
Steps to reproduce the behavior
Start a SIM flight, set some values for wind (I used 5 Kt and 90°), make the aircraft do some turning and see the wind arrow remaining the same.
Touch the infobox to see that the arrow direction updates correctly once.
Rinse and repeat.
Do you have any idea what may have caused this?
I thought it could have something to do with this lines in the changelog:
Kobo
throttle sensor-triggered screen updates
improve performance of graphical InfoBoxes
but it does the same also on windows version, so I have no clue...
Do you have an idea how to solve the issue?
No idea :-(
IANAC but I can try to do my best if someone point me in the right direction...
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