[Libreoffice-bugs] [Bug 144367] New: Add support to export SVGZ images, which are compressed SVG format images from LibreOffice Calc

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=144367

            Bug ID: 144367
           Summary: Add support to export SVGZ images, which are
                    compressed SVG format images from LibreOffice Calc
           Product: LibreOffice
           Version: 7.1.5.2 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: zimon at iki.fi

Description:
Calc can export SVG images, which are useful when a graph contains lots of
information and ie. font size 6 is used to show labels and in X/Y-axes. Often
much better format to use when exporting graph-images from the Calc, and later
imported to PDF-document. Smooth and sharp unlimited zooming is useful.

But since SVG images are XML, they are well (lossless) compressible to SVGZ
format.

(I saw some support for reading SVGZ files as a batch in bug #75487 but it
didn't mention support for export and at least in LO which comes in Fedora 34
[v.7.1.6.2.0] exporting SVGZ from Calc seems not to be possible.)

Steps to Reproduce:
1. Make a graph in LO Calc. Use font size 5 or 6 in labels.
2. Use mouse 2nd button over the graph and take Export As Image
3. Choose format SVG in bottom right where format is chosen. See there is no
SVGZ
4. Save the image as SVG.




Actual Results:
5. Check with Notepad or with hexeditor or with CLI less, the SVG file is
uncompressed XML file.

Expected Results:
Be able to select SVGZ as a image format in stage 3, and have compressed SVGZ
image file exported.


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.1.6.2.0+
Build ID: 10(Build:2)
CPU threads: 8; OS: Linux 5.13; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded

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