Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1:
  Some optimizations for QImage::load()
  fix setRawData()
  Fix QML crashes on the N900
  doc: Added DITA XML generator
  Fix build failure on Symbian 3.1.
  Add the Qt::TextBypassShaping flag.
  QTextEngine: skip an unnecessary call to GetDeviceCaps on Windows.
  Add my 4.7.0 changes
  qdoc: Added DITA XML generator
  doc: Fixed confusing ownership issue.
  update Russian translations for Qt tools
  update Russian translation for Qt libraries
  QXmlSchema documentation correction
  doc: Changed last breadcrumb to not be a link.
  doc: Fixed reference to setSize(), which is in QRectF.
  QNetworkCookie: do not accept cookies with non-alNum domain
  QtDeclarative: Remove trailing commas in enums
  Doc: MonotonicClock is obviously monotonic

4 files changed, 34 insertions, 1 deletions

diff --git a/src/gui/text/qfontmetrics.cpp b/src/gui/text/qfontmetrics.cpp
index 5163c94..d02e841 100644
--- a/src/gui/text/qfontmetrics.cpp
+++ b/src/gui/text/qfontmetrics.cpp
@@ -526,6 +526,14 @@ int QFontMetrics::rightBearing(QChar ch) const
 */
 int QFontMetrics::width(const QString &text, int len) const
 {
+    return width(text, len, 0);
+}
+
+/*!
+    \internal
+*/
+int QFontMetrics::width(const QString &text, int len, int flags) const
+{
     int pos = text.indexOf(QLatin1Char('\x9c'));
     if (pos != -1) {
         len = (len < 0) ? pos : qMin(pos, len);
@@ -535,6 +543,23 @@ int QFontMetrics::width(const QString &text, int len) const
     if (len == 0)
         return 0;
 
+    if (flags & Qt::TextBypassShaping) {
+        // Skip harfbuzz complex shaping, only use advances
+        int numGlyphs = len;
+        QVarLengthGlyphLayoutArray glyphs(numGlyphs);
+        QFontEngine *engine = d->engineForScript(QUnicodeTables::Common);
+        if (!engine->stringToCMap(text.data(), len, &glyphs, &numGlyphs, 0)) {
+            glyphs.resize(numGlyphs);
+            if (!engine->stringToCMap(text.data(), len, &glyphs, &numGlyphs, 0))
+                Q_ASSERT_X(false, Q_FUNC_INFO, "stringToCMap shouldn't fail twice");
+        }
+
+        QFixed width;
+        for (int i = 0; i < numGlyphs; ++i)
+            width += glyphs.advances_x[i];
+        return qRound(width);
+    }
+
     QStackTextEngine layout(text, d.data());
     layout.ignoreBidi = true;
     return qRound(layout.width(0, len));
diff --git a/src/gui/text/qfontmetrics.h b/src/gui/text/qfontmetrics.h
index dca4b93..2518b54 100644
--- a/src/gui/text/qfontmetrics.h
+++ b/src/gui/text/qfontmetrics.h
@@ -89,6 +89,7 @@ public:
     int leftBearing(QChar) const;
     int rightBearing(QChar) const;
     int width(const QString &, int len = -1) const;
+    int width(const QString &, int len, int flags) const;
 
     int width(QChar) const;
     int charWidth(const QString &str, int pos) const;
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp
index d34553f..3486264 100644
--- a/src/gui/text/qtextengine.cpp
+++ b/src/gui/text/qtextengine.cpp
@@ -885,7 +885,7 @@ void QTextEngine::shapeText(int item) const
     QFixed letterSpacing = font.d->letterSpacing;
     QFixed wordSpacing = font.d->wordSpacing;
 
-    if (letterSpacingIsAbsolute)
+    if (letterSpacingIsAbsolute && letterSpacing.value())
         letterSpacing *= font.d->dpi / qt_defaultDpiY();
 
     if (letterSpacing != 0) {
@@ -2648,6 +2648,12 @@ QTextItemInt::QTextItemInt(const QScriptItem &si, QFont *font, const QTextCharFo
         flags |= QTextItem::StrikeOut;
 }
 
+QTextItemInt::QTextItemInt(const QGlyphLayout &g, QFont *font, QFontEngine *fe)
+    : flags(0), justified(false), underlineStyle(QTextCharFormat::NoUnderline),
+      num_chars(0), chars(0), logClusters(0), f(font), fontEngine(fe), glyphs(g)
+{
+}
+
 QTextItemInt QTextItemInt::midItem(QFontEngine *fontEngine, int firstGlyphIndex, int numGlyphs) const
 {
     QTextItemInt ti = *this;
diff --git a/src/gui/text/qtextengine_p.h b/src/gui/text/qtextengine_p.h
index d92148f..00b1392 100644
--- a/src/gui/text/qtextengine_p.h
+++ b/src/gui/text/qtextengine_p.h
@@ -311,6 +311,7 @@ public:
           logClusters(0), f(0), fontEngine(0)
     {}
     QTextItemInt(const QScriptItem &si, QFont *font, const QTextCharFormat &format = QTextCharFormat());
+    QTextItemInt(const QGlyphLayout &g, QFont *font, QFontEngine *fe);
 
     /// copy the structure items, adjusting the glyphs arrays to the right subarrays.
     /// the width of the returned QTextItemInt is not adjusted, for speed reasons