Bug 393384 - Moving rectangular selections has bad & un-undoable side effects with alpha transparency
Summary: Moving rectangular selections has bad & un-undoable side effects with alpha t...
Status: CONFIRMED
Alias: None
Product: kolourpaint
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Compiled Sources Linux
: NOR normal
Target Milestone: ---
Assignee: kolourpaint-support
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-04-22 04:54 UTC by poseidon
Modified: 2019-03-06 21:15 UTC (History)
1 user (show)

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Description poseidon 2018-04-22 04:54:56 UTC 
1. Create a 100% transparent bitmap.
2. Set the secondary color to something opaque.
3. Make a rectangular selection, and move it.
4. The transparent stuff is filled with the secondary color. This happens with either 'Transparent' or 'Opaque' modes with the selection tool.

Undo doesn't know about the filling side-effect.

This is with v18.07.70 built from source; this bug is old as dirt tho.

It's rather obnoxious. A user can work-around it by just not using transparency.