Fix justification in multi fontengine glyphruns

QTextLine::glyphRuns was not handling justification when splitting
glyphRuns due to multiple font-engines. This patch adds the missing
justification.

Task-number: QTBUG-41901
Change-Id: I02d24218630506da21531a6499784dff2eecdf6f
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp
index 911d1b8bc7..1ac50d3e5c 100644
--- a/src/gui/text/qtextlayout.cpp
+++ b/src/gui/text/qtextlayout.cpp
@@ -2256,8 +2256,10 @@ QList<QGlyphRun> QTextLine::glyphRuns(int from, int length) const
                                                       logClusters,
                                                       iterator.itemStart,
                                                       iterator.itemLength));
-                    for (int i = 0; i < subLayout.numGlyphs; ++i)
-                        pos.rx() += subLayout.advances[i].toReal();
+                    for (int i = 0; i < subLayout.numGlyphs; ++i) {
+                        QFixed justification = QFixed::fromFixed(subLayout.justifications[i].space_18d6);
+                        pos.rx() += (subLayout.advances[i] + justification).toReal();
+                    }
 
                     if (rtl)
                         end = start;