Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Save previous font engine for right bearing adjustment
  Fix compilation under OSX 10.7 or using llvm-gcc.
  Fix typo in QFontDialog docs
  Reset previousGlyph once we reached a new text item

1 files changed, 15 insertions, 4 deletions

diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp
index 183bcea..d180f0e 100644
--- a/src/gui/text/qtextlayout.cpp
+++ b/src/gui/text/qtextlayout.cpp
@@ -1715,6 +1715,7 @@ namespace {
         QFixed minimumRightBearing;
 
         QFontEngine *fontEngine;
+        QFontEngine *previousFontEngine;
         const unsigned short *logClusters;
 
         bool manualWrap;
@@ -1735,12 +1736,19 @@ namespace {
             return glyphs.glyphs[logClusters[currentPosition - 1]];
         }
 
-        inline void saveCurrentGlyph()
+        inline void resetPreviousGlyph()
         {
             previousGlyph = 0;
+            previousFontEngine = 0;
+        }
+
+        inline void saveCurrentGlyph()
+        {
+            resetPreviousGlyph();
             if (currentPosition > 0 &&
                 logClusters[currentPosition - 1] < glyphs.numGlyphs) {
                 previousGlyph = currentGlyph(); // needed to calculate right bearing later
+                previousFontEngine = fontEngine;
             }
         }
 
@@ -1760,8 +1768,11 @@ namespace {
 
         inline void adjustPreviousRightBearing()
         {
-            if (previousGlyph > 0)
-                adjustRightBearing(previousGlyph);
+            if (previousGlyph > 0 && previousFontEngine) {
+                qreal rb;
+                previousFontEngine->getGlyphBearings(previousGlyph, 0, &rb);
+                rightBearing = qMin(QFixed(), QFixed::fromReal(rb));
+            }
         }
 
         inline void resetRightBearing()
@@ -1851,7 +1862,7 @@ void QTextLine::layout_helper(int maxGlyphs)
     lbh.currentPosition = line.from;
     int end = 0;
     lbh.logClusters = eng->layoutData->logClustersPtr;
-    lbh.previousGlyph = 0;
+    lbh.resetPreviousGlyph();
 
     while (newItem < eng->layoutData->items.size()) {
         lbh.resetRightBearing();