https://bugs.documentfoundation.org/show_bug.cgi?id=123260
Bug ID: 123260
Summary: FILEOPEN: PPTX imported gradient fill wrong due to
different fill algorithm
Product: LibreOffice
Version: 6.1.3.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Impress
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: tobias.bur...@physik.fu-berlin.de
Created attachment 149018
--> https://bugs.documentfoundation.org/attachment.cgi?id=149018&action=edit
Screen short - left PowerPoint 2003 (with setting for the second/right color),
right LO Impress 6.1.3.2
Test case: attachment 130940 [of bug 105792]
PPTX file (PowerPoint 2007) with gradient-filled rectangle
In PowerPoint the rectangle shows up as horizontal gradient BLUE to
TRANSPARENT.
In Impress as BLUE to REDISHGRAY to TRANSPARENT
In the file, the settings are:
Left: BLUE, 0% transparency
Right: ORANGE, 100% transparency
PowerPoint seemingly does:
- calculate the first color (BLUE)
- calculate the second color (TRANSPARENT/no color)
- interpolate between them
Impress seemingly does:
- interpolate between the colors (BLUE->ORANGE)
- apply to it the interpolation of the transparency
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