On this document http://qt-project.org/doc/qt-5/svgrendering.html you can read "Qt supports the static features of SVG 1.2 Tiny. ECMA scripts and DOM manipulation are currently not supported." That means that several SVG features like text on paths are not rendered by Qt based applications. On several Qt bug reports like this one https://bugreports.qt-project.org/browse/QTBUG-12588 (closed as "out of scope") is recommended to use webkit when rendering complex SVG files. Maybe Gwenview needs to switch to webkit or blink when rendering SVG files. Reproducible: Always I do not see a way to attach a sample SVG file now, so I'll attach one on the comments. That file opens without a problem on rekonq, inkscape, chromium and OpenOffice, but display several problems on Gwenview and karbon14, like missing text, lines that should be invisible are displayed, etc.
Created attachment 87279 [details] Sample SVG with complet layout The attached SVG file opens fine on webkit based applications like rekonq and on other applications like inkscape or OpenOffice is displayed without errors too, but shows several problems on Gwenview and karbon14 due to non complete SVG support.
*** Bug 307331 has been marked as a duplicate of this bug. ***
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Created attachment 124338 [details] Gwenview renedering issue of a SVG. I guess I experience the same bug(s). KDE Plasma Version: 5.17.4 KDE Frameworks Version: 5.65.0 Qt Version: 5.13.2
Created attachment 124339 [details] Sample file of the above post.
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And more than 10 years after, the same bug persist... Is there any plan so that KDE's default image viewer can properly render SVG images in 2020? OS: Gentoo Kernel: x86_64 Linux 5.4.72-gentoo DE: KDE 5.74.0 / Plasma 5.19.5 WM: KWin kde-apps/gwenview-20.08.3:5::gentoo USE="X activities handbook kipi mpris semantic-desktop -debug -fits -raw -share -test"
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(In reply to ebray187 from comment #11) > And more than 10 years after, the same bug persist... Is there any plan so > that KDE's default image viewer can properly render SVG images in 2020? > > OS: Gentoo > Kernel: x86_64 Linux 5.4.72-gentoo > DE: KDE 5.74.0 / Plasma 5.19.5 > WM: KWin > > kde-apps/gwenview-20.08.3:5::gentoo USE="X activities handbook kipi mpris > semantic-desktop -debug -fits -raw -share -test" I'm gonna take a shot at switching over to Qt WebEngine (based on Chromium/Blink). I'm still getting acquainted with Gwenview's code base so I can't make any promises but I'm definitely going to give it a try.
No need to look at Gwenview's source, check kimageformats/qimageformats instead. These have code to load a file into a QImage.
(In reply to Christoph Feck from comment #14) > No need to look at Gwenview's source, check kimageformats/qimageformats > instead. These have code to load a file into a QImage. I'll have a look at it. Thanks a ton.
A possibly relevant merge request was started @ https://invent.kde.org/graphics/gwenview/-/merge_requests/41
Is this still assigned? Is the solution to switch to webkit or blink still considered to be the best choice after the discussion at https://invent.kde.org/graphics/gwenview/-/merge_requests/41 ? Are there any smaller alternative libraries which could be used and are easier to maintain?
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(In reply to postix from comment #17) > Is this still assigned? > Is the solution to switch to webkit or blink still considered to be the best > choice after the discussion at > https://invent.kde.org/graphics/gwenview/-/merge_requests/41 ? > Are there any smaller alternative libraries which could be used and are > easier to maintain? just FYI: there are librsvg and cairo, and we can try piggybacking on CLI inkscape - with a fallback.
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Created attachment 157447 [details] SVG file produced by LibreOffice Draw For now, even SVG files produced by LibreOffice Draw (7.5) cannot be viewed correctly with Gwenview while LibreOffice Writer, Firefox, Scribus and Inkscape show them perfectly.
Will KSVG be a valid alternative library to properly draw fullscreen pictures, or can it only display icons? Will KSVG support e.g. SVG 2 features in development since 2018 (or anything newer than 1.2 tiny from 2008)? Is version 1.0 production ready and suitable for inclusion in Gwenview? https://invent.kde.org/frameworks/ksvg https://www.w3.org/TR/SVG2/ https://www.w3.org/TR/SVGTiny12/
No, because KSvg sits on top of the Qt SVG renderer, which is what suffers from this problem. The solutions are: 1. Improve the Qt SVG renderer 2. Use different SVG renderer
*** Bug 478505 has been marked as a duplicate of this bug. ***