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List: gtk-app-devel
Subject: [Pango] Underline attribute does not work with scaled cairo context.
From: Magicloud Magiclouds <magicloud.magiclouds () gmail ! com>
Date: 2010-04-21 5:28:58
Message-ID: o2p3bd412d41004202228h9587855fh4933633ebcd8a4f () mail ! gmail ! com
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Hi, I set the attributes for the layout with Underline, Size, Letter
Spacing, Font Description. All others worked fine except the
Underline, worked as there was no scale at all. So when the string
displayed in correct size, the underline on the other hand, displayed
as huge black blocks.
Following is my code, sorry it is in haskell.
layout <- liftIO $ do
ctxt <- cairoCreateContext Nothing
layout <- layoutText ctxt $ show $ day e
fd <- fontDescriptionFromString "WenQuanYi Micro Hei Mono Bold"
layoutSetAttributes layout ((if odd $ ceiling x
then case y of
3 -> AttrUnderline 0 2 UnderlineSingle
4 -> AttrUnderline 0 2 UnderlineSingle
5 -> AttrUnderline 0 2 UnderlineSingle
6 -> AttrUnderline 0 2 UnderlineSingle
7 -> AttrUnderline 0 2 UnderlineSingle
8 -> AttrUnderline 0 2 UnderlineDouble
9 -> AttrUnderline 0 2 UnderlineDouble
10 -> AttrUnderline 0 2 UnderlineSingle
11 -> AttrUnderline 0 2 UnderlineSingle
12 -> AttrUnderline 0 2 UnderlineSingle
13 -> AttrUnderline 0 2 UnderlineSingle
14 -> AttrUnderline 0 2 UnderlineSingle
15 -> AttrUnderline 0 2 UnderlineDouble
16 -> AttrUnderline 0 2 UnderlineDouble
else case y of
3 -> AttrUnderline 0 2 UnderlineDouble
4 -> AttrUnderline 0 2 UnderlineDouble
5 -> AttrUnderline 0 2 UnderlineSingle
6 -> AttrUnderline 0 2 UnderlineSingle
7 -> AttrUnderline 0 2 UnderlineSingle
8 -> AttrUnderline 0 2 UnderlineSingle
9 -> AttrUnderline 0 2 UnderlineSingle
10 -> AttrUnderline 0 2 UnderlineDouble
11 -> AttrUnderline 0 2 UnderlineDouble
12 -> AttrUnderline 0 2 UnderlineSingle
13 -> AttrUnderline 0 2 UnderlineSingle
14 -> AttrUnderline 0 2 UnderlineSingle
15 -> AttrUnderline 0 2 UnderlineSingle
16 -> AttrUnderline 0 2 UnderlineSingle) :
[ AttrSize 0 2 0.4
, AttrLetterSpacing 0 2 (-0.3)
, AttrFontDescription 0 2 fd ])
return layout
setSourceRGB 0 0 0
(_, PangoRectangle _ _ w h) <- liftIO $ layoutGetExtents layout
moveTo (x - 0.5 - w / 2 + 0.05 + 0.1) (y + 0.2)
showLayout layout
--
竹密岂妨流水过
山高哪阻野云飞
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