[Webkit-unassigned] [Bug 42251] New: [GTK]Text shadow is displayed wrong for text starting with  

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=42251

           Summary: [GTK]Text shadow is displayed wrong for text starting
                    with  
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mihnea at adobe.com


Hi,

Suppose i have the following HMTL snippet:

<div style="text-shadow:red 10px 10px 0px"> Test</div>

GtkLauncher displays the shadow incorrectly: the red shadow is clamped so that only *Tes* letters are completely visible. Only part of last *t* letter is displayed.

If i do something like (  not the first item in text):
<div style="text-shadow:red 10px 10px 0px">T est</div>
then the text shadow is displayed correctly.

I saw this failure when i first loaded layout test: *fast/repaint/shadow-multiple-horizontal.html* in GtkLauncher and i noticed that the text shadows were not diplayed correctly. However, if   character is not the first character in the text, then the shadow is displayed correctly. Debugging the code a little, i saw that in FontCairo.cpp, function drawGlyphs, calling *cairo_scaled_font_glyph_extents* issues different values for: * Test* and *T est*, the latter being bigger and rendered correctly.

The cairo port on Windows does not have this problem.

Regards,
Mihnea Ovidenie

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