[Libreoffice-bugs] [Bug 137007] New: Enhancement: Please integrate or replicate the functionality of the "Save As Images" extension directly into draw (with bug fixes)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=137007

            Bug ID: 137007
           Summary: Enhancement: Please integrate or replicate the
                    functionality of the "Save As Images" extension
                    directly into draw (with bug fixes)
           Product: LibreOffice
           Version: 7.1.0.0.alpha0+ Master
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: medium
         Component: Draw
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: mwtjunkmail at gmail.com

Description:
This enhancement: 
https://extensions.libreoffice.org/en/extensions/show/export-as-images

Really helps as a big time saver. It exports all slides in an LO Draw document
all at once into various graphical formats, and I can determine the resolution
of the exports independently of the draw document's dimensions.

I make images that I then wrap around 3-D objects, and this extension, combined
with the slide implementation and vector capabilities in Draw, makes
updates/output a heck of a lot faster thann programs like PS, Paint.net, or
other raster programs that only support building one image per file. 

Exporting 40 slides all at once rather than one at a time is a massive time
savings.

The only problem with the "save as images" extension, as useful as it is: it
cannot support transparency with its PNG output function. No matter how many
different ways I set up an LO Draw document to have a transparent background,
Export As Images produces a white background, forcing me to export to PNG each
slide manually to get the transparency.

This problem is not related to any of the transparency issues I've ever logged
against Skia. This was happening before Skia was ever around.

The creator of this extension is long gone. I left a message on the extension's
web page back when 6.4.4. was out if he'd update it. No reply.

I'm therefore raising my hand to say the functionality of this extension is
really good, minus this one really big flaw. I can use Save As Images for
slides with no transparency backgrounds, which I often do, but it's useless if
the backgrounds have any transparency requirements at all.

It also relies on old code libraries, the references to which sometimes break.

It would be awesome if this extension, with the bug fix for recognizing
transparent backgrounds, were integrated directly into Draw.

Steps to Reproduce:
1. In Windows LO Draw, add the extension:
https://extensions.libreoffice.org/en/extensions/show/export-as-images

2. Create an LO draw document with multiple slides.
3. Uses the Save As Images to export all slides at once.

Actual Results:
Okay as long as the background isn't transparent.

Expected Results:
PNG exports should recognize transparent backgrounds.


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.1.0.0.alpha0+ (x64)
Build ID: f08ddf3d3df0ef12fef36e96ffe6f5b9a7fda9e3
CPU threads: 8; OS: Windows 10.0 Build 20215; UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: threaded

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