56 lines
1.9 KiB
Diff
56 lines
1.9 KiB
Diff
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From cb2633468413d8c2a9e28d4c4a10b25e90dd3116 Mon Sep 17 00:00:00 2001
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From: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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Date: Mon, 25 Nov 2024 16:05:09 +0100
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Subject: Skip ad hoc handling of variation selector in font merging
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Since we now support emoji parsing, there is no longer any need
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for this ad hoc processing of VS-16. The exception is if Qt is
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built without the emoji segmenter, in which case we should keep
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it for consistency with previous versions.
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Task-number: QTBUG-111801
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Change-Id: I3e243b9610fe55dda26eba63ac849e6afa22a185
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Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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diff --git a/src/gui/text/qfontengine.cpp b/src/gui/text/qfontengine.cpp
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index 02595b40c5..6be6a5aca2 100644
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--- a/src/gui/text/qfontengine.cpp
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+++ b/src/gui/text/qfontengine.cpp
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@@ -1997,8 +1997,11 @@ int QFontEngineMulti::stringToCMap(const QChar *str, int len,
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int glyph_pos = 0;
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QStringIterator it(str, str + len);
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- int lastFallback = -1;
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+#if defined(QT_NO_EMOJISEGMENTER)
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char32_t previousUcs4 = 0;
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+#endif
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+
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+ int lastFallback = -1;
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while (it.hasNext()) {
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const char32_t ucs4 = it.peekNext();
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@@ -2057,6 +2060,7 @@ int QFontEngineMulti::stringToCMap(const QChar *str, int len,
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}
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}
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+#if defined(QT_NO_EMOJISEGMENTER)
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// For variant-selectors, they are modifiers to the previous character. If we
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// end up with different font selections for the selector and the character it
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// modifies, we try applying the selector font to the preceding character as well
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@@ -2095,11 +2099,15 @@ int QFontEngineMulti::stringToCMap(const QChar *str, int len,
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}
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}
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}
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+#endif
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}
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it.advance();
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++glyph_pos;
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+
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+#if defined(QT_NO_EMOJISEGMENTER)
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previousUcs4 = ucs4;
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+#endif
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}
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*nglyphs = glyph_pos;
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