[Webkit-unassigned] [Bug 218450] New: [GTK] System font scaling not applied to 'font-size: XXXpt'

Mon Nov 2 09:38:06 PST 2020

https://bugs.webkit.org/show_bug.cgi?id=218450

            Bug ID: 218450
           Summary: [GTK] System font scaling not applied to 'font-size:
                    XXXpt'
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcrha at redhat.com
                CC: bugs-noreply at webkitgtk.org

Upstream bug report against Evolution:
https://gitlab.gnome.org/GNOME/evolution/-/issues/1195

The user has set in the system (GNOME Tweaks) fractional font scaling (1.5 in his case) and WebKitGTK shows text inside <font size="3"></font> in a different size than the fonts out of the <font/> element, while these two should be the same. It does that when the font-size style is declared in 'pt'.

I can fix it on the Evolution side, but in case some future version of the WebKitGTK will apply the system font scaling factor to the 'pt' font-size, it might apply it twice (once by evo, once by WebKit), thus I'm asking whether you think it should be fixed on the application side or on the WebKitGTK side.

Example HTML for testing, where the "size3" and the "size normal" should be of the same size:

<html><head>
<style><!-- body { font-size:10pt; } --></style>
</head><body>
<font size="1">size1</font><br>
<font size="2">size2</font><br>
<font size="3">size3</font>size normal<br>
<font size="4">size4</font><br>
<font size="5">size5</font><br>
<font size="6">size6</font><br>
<font size="7">size7</font><br>
</body></html>

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