Opened 9 years ago
Closed 9 years ago
#12673 closed bug (fixed)
BColorControl: doublebuffering does not update slider colors
| Reported by: | rudolfc | Owned by: | jscipione |
|---|---|---|---|
| Priority: | normal | Milestone: | Unscheduled |
| Component: | Kits/Interface Kit | Version: | R1/Development |
| Keywords: | BColorControl Backgrounds prefs | Cc: | |
| Blocked By: | Blocking: | ||
| Platform: | All |
Description
BColorControl has an error where the doublebuffered offscreen control bitmap is not updated: it's apparantly only drawn once. This error is revealed because of the way the Backgrounds prefs app works since pulkomandy's update(s) on dec 10 2014 and jan 6 2015, that is if you also modify backgrounds to use doublebuffering.
The problem can be easily fixed though. See first comment.
Change History (3)
comment:1 by , 9 years ago
comment:2 by , 9 years ago
| Owner: | changed from to |
|---|---|
| Status: | new → assigned |
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If you add a single line in the file: ColorControl.cpp, method BColorControl::Draw, line 375: when fBitmap exists, first call _InitOffscreen() before doing DrawBitmap(fBitmap, B_ORIGIN). I guess though the method _InitOffscreen() would better have another name now though..
Since I might hit the CodePolice or something, I gladly leave it upto someone else (not me) to update this class. thanks.