I vaguely remember Qt folks mentioning that there's a font-related bug in Qt
DRT.
- Ryosuke
On Wed, Feb 9, 2011 at 4:42 AM, Dan Bernstein <m...@apple.com> wrote:
> In an attempt to give layout tests consistent results across platforms, I
> ofter use the Ahem font. However, I’ve noticed that Qt still requires
> platform-specific results when I do that. One recent example is
> fast/dynamic/unicode-bidi.html
>
> $ diff -u LayoutTests/platform/qt/fast/dynamic/unicode-bidi-expected.txt
> LayoutTests/fast/dynamic/unicode-bidi-expected.txt
> --- LayoutTests/platform/qt/fast/dynamic/unicode-bidi-expected.txt 2011-02-03
> 09:02:59.000000000 -0800
> +++ LayoutTests/fast/dynamic/unicode-bidi-expected.txt 2011-01-28
> 10:46:32.000000000 -0800
> @@ -3,14 +3,14 @@
> layer at (0,0) size 800x600 layerType: background only
> layer at (8,8) size 100x50
> RenderBlock (positioned) zI: -1 {DIV} at (8,8) size 100x50
> [color=#FF0000]
> - RenderInline {SPAN} at (0,0) size 50x49 [color=#008000]
> - RenderText {#text} at (0,0) size 50x49
> + RenderInline {SPAN} at (0,0) size 50x50 [color=#008000]
> + RenderText {#text} at (0,0) size 50x50
> text run at (0,0) width 50: "x"
> - RenderText zI: -1 {#text} at (50,0) size 50x49
> + RenderText zI: -1 {#text} at (50,0) size 50x50
> text run at (50,0) width 50: "x"
> layer at (0,0) size 800x600 layerType: foreground only
> RenderBlock {HTML} at (0,0) size 800x600
> RenderBody {BODY} at (8,8) size 784x584
> RenderBlock {DIV} at (0,0) size 784x50 [color=#008000]
> - RenderText {#text} at (0,0) size 100x49
> + RenderText {#text} at (0,0) size 100x50
> text run at (0,0) width 100 RTL override: "xp"
>
> Here, all the 50px Ahem text has a height of 49 pixels on Qt. The pixel
> results, though, show it having the same height it does in Mac OS X (and
> presumably other platforms).
>
> What is causing this difference? How does it affect other fonts and real
> websites? Is there a way to fix this?
>
> Thanks,
> —Dan
>
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> webkit-dev@lists.webkit.org
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>
>
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