[Webkit-unassigned] [Bug 180581] New: [GTK] Issues with Ahem's ex / x-height

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=180581

            Bug ID: 180581
           Summary: [GTK] Issues with Ahem's ex / x-height
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Ms2ger at igalia.com
                CC: bugs-noreply at webkitgtk.org

Cairo does not allow us to extract the defined x-height from a font, and we instead need to draw an "x" and measure it with cairo_scaled_font_text_extents.

The Ahem font has a defined x-height of 0.8em, which does not seem to match the result of cairo_scaled_font_text_extents.

This causes a number of our tests that use the font to fail on GTK.

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