https://bugs.kde.org/show_bug.cgi?id=381732
Bug ID: 381732
Summary: (gmic-qt) Problems with layer dimension and position
calculations
Product: krita
Version: unspecified
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: G'Mic for Krita
Assignee: krita-bugs-n...@kde.org
Reporter: nicholaslapoin...@gmail.com
Target Milestone: ---
Created attachment 106341
--> https://bugs.kde.org/attachment.cgi?id=106341&action=edit
Demo file
It is easier to notice the first three here when
https://phabricator.kde.org/D6409 is applied.
1. A layer with visible dimensions smaller than its actual dimensions will have
an unaffected edge after applying the filter. It will also appear similarly
cropped in the G'MIC dialog's preview.
Applying the filter "Black & white" -> "Black & white" to the layer "Top-left
logo" in the attached file will show this.
2. Layers are only sent to G'MIC in a rectangle given by (0, 0, layerWidth,
layerHeight). For example, a 100x100 layer on 0,0 will be okay; the same layer
moved to 100,100 will not.
3. If those two are fixed, then it may still be possible that an off-canvas
part of a layer will not be affected at all. This also happens in Krita 3.0.1.
It can be by tested using "Black & white" on "Partially off-canvas logo" and
then moving the layer back onto the canvas.
4. The G'MIC dialog's preview can zoom very differently than it does in the
GIMP plug-in. This can be seen by opening
krita/pics/app/1024-apps-calligrakrita.png in both GIMP and Krita, then
enlarging the canvas to 2048x2048 (with the layer anchored to the top-left). If
the canvas is not enlarged, then they will instead zoom with the same
appearance.
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