Trendlines and graph repainting

[Djobydjoba]

Hi Mark,

I wonder if it could be possible to avoid the graph repainting (prices, moving averages, bottom indicator in TA graph...) when a trendline is moved, duplicated, resized or deleted, in order to avoid the graph flickering effect. When a new trendline is drawn there is no flickering / repainting, so maybe it might not be necessary with the other operations on trendlines?

[Mark]

Hi Djobydjoba,

I'm not sure, but it is something I can take a look at...

[Djobydjoba]

Another significant flickering effect with graphs is when you have chosen a background color other than black.
Then when the graph is refreshed you can observe that the background flashes in black before the background color is reapplied. I don't know if this could be avoided (maybe the background color could be preset for the entire window?). This would improve the experience.

An example with a window resizing (but it can be observed too with a change of the date range or when a line is drawn):
https://i.ibb.co/XrZKStk5/Background-Flickering.gif

[Mark]

Hi Djobydjoba,

I think it may be because the outer background remains black (where the graph labels are drawn), so the window background really is still black, and we have to draw the other color background for where the data is plotted. I can take a closer look at how it is really being drawn though. Maybe there is a better way...