https://bugs.kde.org/show_bug.cgi?id=432226
Bug ID: 432226
Summary: Calling setVisible() on a node's color channels does
not behave as expected.
Product: krita
Version: 4.4.2
Platform: macOS (DMG)
OS: macOS
Status: REPORTED
Severity: minor
Priority: NOR
Component: Scripting
Assignee: krita-bugs-n...@kde.org
Reporter: chris.ven...@gmail.com
Target Milestone: ---
SUMMARY
The python Channel.setVisible() scripting call does not behave as expected.
Rather than individually addressing the specified channel's visibility, it
affects all other channels' visibilities too.
STEPS TO REPRODUCE
1. Start Krita
2. Create a new blank document
3. Open the Tools->Scripts->Scripter
4. Run the following script in the scripter:
from krita import *
activeView = Krita.instance().activeWindow().activeView()
activeDocument = activeView.document()
activeNode = activeDocument.activeNode()
for i in range(4):
activeNode.channels()[i].setVisible(False)
5. Open the layer's properties dialog
6. Observe the active channel status
OBSERVED RESULT
All three color channels are active (ticked), only the alpha channel is
inactive (unticked)
EXPECTED RESULT
All four channels should be inactive (unticked)
SOFTWARE/OS VERSIONS
Windows: Not tested
macOS: Catalina 10.15.6: Tested, bug is always reproducible
Linux/KDE Plasma: Not tested
(available in About System)
KDE Plasma Version: NA
KDE Frameworks Version: NA
Qt Version: NA
ADDITIONAL INFORMATION
Further testing shows that whenever a setVisible(X) call is made on a channel,
all other channel visibilities are reset to true,
and only the last channel's visibility is correctly set.
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