Created attachment 55501 [details]
Example PDF made by save as from Inkscape. Looks fine in PDF viewers. In LODraw
the gradient/pattern extends to the limits of the image. 3.5.0b2 does exactly the same thing.
This is a specific issue extracted from bug 43806
Created attachment 55502 [details]
source SVG for the problem PDF
Created attachment 55503 [details]
Screen shot of LODraw after opening the problem PDF
Problem is unchanged in 3.5.0rc1 on Windows
Ubuntu 10.04.3 x86
Linux 2.6.32-37-generic Russian UI
OS > All
Created attachment 98038 [details]
New gradient test (PDF)
Two types of bugs are mixed in provided test PDF (gradient.pdf): clipping and opacity.
Here is the new test files: gradient_test4.svg and gradient_test4.pdf
They are free from opacity bugs (and from big black rectangles as well).
Created attachment 98039 [details]
New gradient test (SVG)
Created attachment 98040 [details]
Clipping patch (experimental)
Clipping must be performed without modifying of source objects.
But there is no such feature in LibreOffice Draw.
I have tried to implement modifying clipping.
But I was faced with two problems:
1. Radial gradients rendered by poppler as 256 polygons with 400 points.
That is bad for performance, but when clip is applied, situation becomes even worse.
2. Function basegfx::tools::clipPolyPolygonOnPolyPolygon() behaves badly in border cases. With my test file it fails 2 times: with radial gradient clipping and with pattern fill clipping.
Here is my experimental patch file.
Maybe it will be useful for someone.
Bug 86211 contains newer version of clipping patch
Confirmed: 184.108.40.206: Linux IA64
Black area shouldn't show up.
Removing comma from Whiteboard (please use a space to delimit values in this field)
Build ID: 6b232aeecc55f1715bc111e636e36a8e24827efb
CPU Threads: 4; OS Version: Windows 6.1; UI Render: default;
TinderBox: Win-x86@39, Branch:master, Time: 2016-01-26_07:40:04
Locale: de-DE (de_DE)
*** Bug 54924 has been marked as a duplicate of this bug. ***
Is it really PDF import to LO Draw or may be PDF export? Could somebody please explain the bug step by step as in Bug 54924 which has been marked as duplicate?
(In reply to kitaets from comment #14)
> Is it really PDF import to LO Draw or may be PDF export?
When I create a rectangle in Draw, fill it with a gradient from black to white, export to pdf and reopen the pdf, the object is rasterized (same as for svg in tdf#64464). Looking into the raw pdf file there is nothing obviously wrong.
I'm not saying the export filter has no bugs, but do we really need two tickets? Having a large list to go through might be discouraging. Anyway, feel free to reactivate the duplicate if you think it's necessary (in this case set blocks 99746 and see as well 44731 please).
Created attachment 135945 [details]
test 4 in LOO 220.127.116.11 64 bit
same in 18.104.22.168
white sheet, right circles, wrong lines outside the circles
black sheet in windows 10 64bit
Version: 22.214.171.124 (x64)
CPU-Threads: 4; Betriebssystem:Windows 6.19; UI-Render: GL;
Gebietsschema: de-DE (de_DE); Calc: CL
Version: 126.96.36.199 (x64)
CPU-Threads: 4; Betriebssystem:Windows 6.19; UI-Render: Standard; Layout Engine: new;
Gebietsschema: de-DE (de_DE); Calc: group
Created attachment 135946 [details]
gradient-svg test LOO-188.8.131.52-64bit
problem in last circle gradient
test in 184.108.40.206
wrong direction of second gradient
third gradient not white near circle line.
4th circle is black full inside and a greater rectangle black in addition
Created attachment 135948 [details]
4th circle gradient with more lines in inkscape 0.92.2
Created attachment 135949 [details]
source svg in firefox 52.3 screenshot
less lines in 4th circle.
Comment on attachment 135948 [details]
more lines in 4th circle not reproducable
Created attachment 135951 [details]
scribus 1.5.3 also with problem in 4th circle by gradient.svg
Created attachment 135952 [details]
more lines in 4th circle
Created attachment 135953 [details]
all right like svg
Created attachment 135954 [details]
all right like svg in Firefox
Comment on attachment 135949 [details]
source svg in firefox 52.3 screenshot
all ok, not less or more lines
220.127.116.11 64 bit win10
same like 18.104.22.168, no improvement or change.
in LO Draw 6.1 beta 2
Problem PDF opens with black background and wrong gradients
Source SVG from Problem PDF opens very fine
For 6.2 the pdfium based filter is now handling both import and insert, and the pdfium rendering to bitmap on canvas correctly renders the linear, radial and pattern fills of attachment 55501 [details] or attachment 98038 [details]
But break of the inserted PDF, or Import (e.g. opening) of the PDF with PDFium, is not handling clip of the gradient fills well.
Should this and similar import/break bugs be closed and restated against the new PDFium filter?
@Miklos, Ashod, Kendy
I would let Ashod / Kendy decide when the pdfium import is ready to replace the poppler one.
svg import improved but not perfect in LO 22.214.171.124
black circles incomplete.
pdf-import same buggy like before.
blue circles incomplete not black
svg import in 126.96.36.199 circles are incomplete, but in export pdf all is ok.
so nearly 50% is here ok.
import of problem pdfs are nearly like bugs 43806 and 44729
Created attachment 153612 [details]
import gradient.svg in Lo 188.8.131.52 and export pdf
svg import to LO 184.108.40.206 circles are incomplete.
but pdf export the circles are ok and the result is perfect in my view.
so svg import with pdf export is ok.
problem pdf import failed like before in 5.x and 6.x