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[packages/qt4.git] / 0072-Fix-font-cache-check-in-QFontEngineFT-recalcAdvances.patch
1 From 80e3108f5cd1e1850ec81a21100d79a0946addd7 Mon Sep 17 00:00:00 2001
2 From: Miikka Heikkinen <miikka.heikkinen@digia.com>
3 Date: Fri, 16 Mar 2012 11:13:55 +0200
4 Subject: [PATCH 72/74] Fix font cache check in QFontEngineFT::recalcAdvances()
5 MIME-Version: 1.0
6 Content-Type: text/plain; charset=UTF-8
7 Content-Transfer-Encoding: 8bit
8
9 Cached font was used regardless of the format, resulting in incorrect
10 advance in some cases when default format differed from the cached
11 format.
12
13 Task-number: QTBUG-24188
14 Change-Id: I39e4156bd9ba743afa7e106e934c90227fbf2b8b
15 Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
16 (cherry picked from qtbase/2ea976c3a713535c2419d936d575e0b24545f0fa)
17 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
18 Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>
19 Reviewed-by: Jiang Jiang <gzjjgod@gmail.com>
20 ---
21  src/gui/text/qfontengine_ft.cpp | 4 +++-
22  1 file changed, 3 insertions(+), 1 deletion(-)
23
24 diff --git a/src/gui/text/qfontengine_ft.cpp b/src/gui/text/qfontengine_ft.cpp
25 index aecbf76..44a0aca 100644
26 --- a/src/gui/text/qfontengine_ft.cpp
27 +++ b/src/gui/text/qfontengine_ft.cpp
28 @@ -1603,7 +1603,9 @@ void QFontEngineFT::recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlag
29                     (flags & HB_ShaperFlag_UseDesignMetrics)) && FT_IS_SCALABLE(freetype->face);
30      for (int i = 0; i < glyphs->numGlyphs; i++) {
31          Glyph *g = defaultGlyphSet.getGlyph(glyphs->glyphs[i]);
32 -        if (g) {
33 +        // Since we are passing Format_None to loadGlyph, use same default format logic as loadGlyph
34 +        GlyphFormat acceptableFormat = (defaultFormat != Format_None) ? defaultFormat : Format_Mono;
35 +        if (g && g->format == acceptableFormat) {
36              glyphs->advances_x[i] = design ? QFixed::fromFixed(g->linearAdvance) : QFixed(g->advance);
37          } else {
38              if (!face)
39 -- 
40 1.9.3
41
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