[Webkit-unassigned] [Bug 12172] New: SVG Text uses naff layout engine

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=12172

           Summary: SVG Text uses naff layout engine
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: contact at nickshanks.com


When using the <text> element for more than a single letter, it becomes aparent
that Mac OS X's high quality kerning is being ignored and the glyphs are
aparently being rendered one at a time on integer pixel boundries (or something
like that).

This effect is hardest to read when a bitmap font is used, such as Geneva 9pt
— frequently the letters are either too widly spaced or collide!

It is very noticable when resizing a window such that the dimensions of the
image don't change (i.e. it's as tall as the window, and you're making the
window wider only). In this instance the whole image is redrawn (another bug,
presumably) and the text 'dances' in position, because the glyph boxes fall
into new pixels. Contrast this with doing the same to a PDF.


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