[Libreoffice-bugs] [Bug 141324] New: HTML exported depends on monitor resolution

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=141324

            Bug ID: 141324
           Summary: HTML exported depends on monitor resolution
           Product: LibreOffice
           Version: 6.1.3.2 release
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: LibreOffice
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: d.obber at siaspa.com

Created attachment 170810
  --> https://bugs.documentfoundation.org/attachment.cgi?id=170810&action=edit
source ott & two different html files, due to different screen resolution

I've a java program that exports a block of the document, delimited by a
bookmark. 

I use XSelection/XTransferable/isDataFlavorSupported() to select the bookmark
text and then to export it as HTML. Everything worked. 

Suddenly I had a problem with a template because the colWidths of a html table
had a different size than before.

I've investigated the issue and I found that the problem is related to the
monitor resolution. 

If I run the program with a resolution of 1920x1080, the colWidths of the html
table are about 20% larger than if run the program with a screen resolution of
1600x900. 

A) Large colWidths  (1920x1080 - font size 125%)

 <colgroup>
     <col width="194"> 
     <col width="177"> 
     <col width="189"> 
     <col width="188"> 
 </colgroup>

B) Normal colWidths  (1600x900, 1920x1080 - font size 100%)

 <colgroup>
     <col width="154"> 
     <col width="141"> 
     <col width="151"> 
     <col width="150"> 
</colgroup>

I tried different resolutions and I've got always results of kind A or of kind
B.

Another clue: the program with the same resolution (1920x1080) but with a
different Font Size (100% or 125%, Windows 10 settings) produces different
results (respectively A and B)

In attach there's a zip file with an OTT that has a Bookmark BK_TESTO_LIBERO
that I export. As you can see from the two HTML files, a table has different
colWidths.

I use this HTML to display some text to the end user with a rich text component
and then I take it back. With the large colWidths, the table in the final
document goes over the right margin.

Is there a way to have the same result independently from the screen
resolution?

David 

p.s. If needed, I can try to build a simple java program to test it.

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