https://bugs.documentfoundation.org/show_bug.cgi?id=155913
Bug ID: 155913
Summary: MCGR: Transparency gradient must not have steps
("Increment" in UI)
Product: LibreOffice
Version: 24.2.0.0 alpha0+ Master
Hardware: x86-64 (AMD64)
OS: Windows (All)
Status: UNCONFIRMED
Keywords: implementationError, regression
Severity: normal
Priority: medium
Component: LibreOffice
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: rb.hensc...@t-online.de
CC: armin.le.gr...@me.com
Created attachment 187974
--> https://bugs.documentfoundation.org/attachment.cgi?id=187974&action=edit
Color gradient with 4 steps and linear transparency gradient
Open attached document created with LO 7.5. It has a shape with a 4 step color
gradient and an orthogonal linear transparency gradient. Below the shape is a
screenshot how it looks in LO 7.5.
The error is that the step count 4 is applied to the transparency gradient too.
The corresponding attribute in ODF 1.3 is
<quote>
20.137 draw:gradient-step-count
The draw:gradient-step-count attribute specifies the gradient step count of a
color interpolation.
●Value 0 means that the step count is automatically calculated on the
size and resolution of the filled area.
●Values 1 and 2 shall not be used.
●Values of 3 or greater mean that the step count is that fixed value.
A gradient step count of color interpolation may be above 256.
</quote>
That is very clear, that the draw:gradient-step-count is only applicable to the
color interpolation. There exists no similar attribute for an applied
draw:opacity element.
The current behavior in LO7.5 is correct and confirms to the standard. The
behavior must not change with introducing multicolor gradients.
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