Issue 123558 - In particular .pptx particular shape gradient darkest area at wrong place and not dark enough
Summary: In particular .pptx particular shape gradient darkest area at wrong place and...
Status: CONFIRMED
Alias: None
Product: Impress
Classification: Application
Component: open-import (show other issues)
Version: 3.4.0
Hardware: All Windows 7
: P3 Trivial (vote)
Target Milestone: ---
Assignee: AOO issues mailing list
QA Contact:
URL:
Keywords: interop_OOXML
Depends on:
Blocks:
 
Reported: 2013-10-27 12:24 UTC by Rainer Bielefeld
Modified: 2013-11-06 09:41 UTC (History)
4 users (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---

Attachments
Screenshot Comparison (31.96 KB, application/vnd.oasis.opendocument.graphics)
2013-10-27 12:24 UTC, Rainer Bielefeld 		no flags Details
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Description Rainer Bielefeld 2013-10-27 12:24:14 UTC 
Created attachment 81828 [details]
Screenshot Comparison

Steps how to reproduce with "AOO 4.0.1   – German UI / German locale  [Rev. 1524958 2013-09-20 11:40:29]" on  German WIN7 Home Premium (64bit)", “historic”  4.0  User Profile used for all  predecessor versions

1. From AOO Start center open  Attachment 81812 [details] for Bug 123515
2. Open a copy of that document in MS PPT Viewer (or SoftMaker FreeOffice)
3. Start slideshow for both documents and compare gradient in area of top left
   shape (X/Y 50/55mm):
   Views differ:
   (a) AOO most dark area not as dark as in MS PPT viewer
   (b) AOO looks rather linear, PPT Viewer seems to show nonlinear gradient
   (c) IN PPT Viewer darkest area not at the bottom of the shape

Please also see screenshot comparison in att. here

Additional info:
----------------
(d) not a new problem, all the same with OOo 3.3.0
(e) Still Reproducible with  "AOO 4.1.0-Dev – English  UI / German locale - 
    [AOO410m1(Build:9750)  -  Rev. 1534248 - 2013-10-22]" on German 
     WIN7 Home Premium (64bit)", own separate user profile.
Comment 1 Rainer Bielefeld 2013-10-27 12:26:06 UTC 
Spin off from "Bug 123515 - In .pptx shape area "Slide Background Filling" shown with color" reported by fanyuzhen@gmail.com

I think this here is a trivial one.

Latest confirmation for AOO 4.1.0-dev, but because of incomplete LCo selector 
(Bug 123063) no correct information can be left.
Comment 2 Edwin Sharp 2013-10-28 07:29:49 UTC 
Confirmed with
AOO410m1(Build:9750)  -  Rev. 1525015
Rev.1525015
PowerPoint 2007
Win 7
Comment 3 Armin Le Grand 2013-10-30 16:34:15 UTC 
ALG: A first find: In FillProperties::pushToPropMap in case XML_gradFill a com::sun::star::awt::Gradient is constructed; this cannot be a 1:1 gradient since the MS definitions differ too much from this one, it will always be a 'matching'. I will check if that matching could be improved, but when looking at the comments in that code there is already a compromize matcing. Example comment:

// position of gradient center (limited to [30%;70%], otherwise gradient is too hidden)

Thus; not sure if this can be improved with our own current gradient definition.