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:
  improve performance of QTextEngine, esp. setBoundary by using non-detaching operator[]
  Improve docs for QTEST_MAIN macro.
  Work around an apparent GCC optimiser bug accessing arrays beyond end
  Do not crash in case a future version of libdbus has a new kind of message.
  Docs: QTBUG-9150 Incorrect snippet in class doc.
  tst_headers: make failure more detailed when failing to open a file
  Fix number of chapters in qtestlib tutorial.
  Fixed QStatusBar not to repaint itself too early
  QNAM HTTP: Fix missing error() signal
  Make it clear which security updates are needed for Visual Studio 2005.

3 files changed, 48 insertions, 36 deletions

diff --git a/src/gui/math3d/qgenericmatrix.h b/src/gui/math3d/qgenericmatrix.h
index 3224ae2..f91bce7 100644
--- a/src/gui/math3d/qgenericmatrix.h
+++ b/src/gui/math3d/qgenericmatrix.h
@@ -198,52 +198,58 @@ Q_OUTOFLINE_TEMPLATE QGenericMatrix<M, N, T> QGenericMatrix<N, M, T>::transposed
 template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T>& QGenericMatrix<N, M, T>::operator+=(const QGenericMatrix<N, M, T>& other)
 {
-    for (int index = 0; index < N * M; ++index)
-        m[0][index] += other.m[0][index];
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            m[col][row] += other.m[col][row];
     return *this;
 }
 
 template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T>& QGenericMatrix<N, M, T>::operator-=(const QGenericMatrix<N, M, T>& other)
 {
-    for (int index = 0; index < N * M; ++index)
-        m[0][index] -= other.m[0][index];
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            m[col][row] -= other.m[col][row];
     return *this;
 }
 
 template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T>& QGenericMatrix<N, M, T>::operator*=(T factor)
 {
-    for (int index = 0; index < N * M; ++index)
-        m[0][index] *= factor;
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            m[col][row] *= factor;
     return *this;
 }
 
 template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE bool QGenericMatrix<N, M, T>::operator==(const QGenericMatrix<N, M, T>& other) const
 {
-    for (int index = 0; index < N * M; ++index) {
-        if (m[0][index] != other.m[0][index])
-            return false;
-    }
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)  {
+            if (m[col][row] != other.m[col][row])
+                return false;
+        }
     return true;
 }
 
 template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE bool QGenericMatrix<N, M, T>::operator!=(const QGenericMatrix<N, M, T>& other) const
 {
-    for (int index = 0; index < N * M; ++index) {
-        if (m[0][index] != other.m[0][index])
-            return true;
-    }
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col) {
+            if (m[col][row] != other.m[col][row])
+                return true;
+        }
     return false;
 }
 
 template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T>& QGenericMatrix<N, M, T>::operator/=(T divisor)
 {
-    for (int index = 0; index < N * M; ++index)
-        m[0][index] /= divisor;
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            m[col][row] /= divisor;
     return *this;
 }
 
@@ -251,8 +257,9 @@ template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T> operator+(const QGenericMatrix<N, M, T>& m1, const QGenericMatrix<N, M, T>& m2)
 {
     QGenericMatrix<N, M, T> result(1);
-    for (int index = 0; index < N * M; ++index)
-        result.m[0][index] = m1.m[0][index] + m2.m[0][index];
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            result.m[col][row] = m1.m[col][row] + m2.m[col][row];
     return result;
 }
 
@@ -260,8 +267,9 @@ template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T> operator-(const QGenericMatrix<N, M, T>& m1, const QGenericMatrix<N, M, T>& m2)
 {
     QGenericMatrix<N, M, T> result(1);
-    for (int index = 0; index < N * M; ++index)
-        result.m[0][index] = m1.m[0][index] - m2.m[0][index];
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            result.m[col][row] = m1.m[col][row] - m2.m[col][row];
     return result;
 }
 
@@ -284,8 +292,9 @@ template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T> operator-(const QGenericMatrix<N, M, T>& matrix)
 {
     QGenericMatrix<N, M, T> result(1);
-    for (int index = 0; index < N * M; ++index)
-        result.m[0][index] = -matrix.m[0][index];
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            result.m[col][row] = -matrix.m[col][row];
     return result;
 }
 
@@ -293,8 +302,9 @@ template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T> operator*(T factor, const QGenericMatrix<N, M, T>& matrix)
 {
     QGenericMatrix<N, M, T> result(1);
-    for (int index = 0; index < N * M; ++index)
-        result.m[0][index] = matrix.m[0][index] * factor;
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            result.m[col][row] = matrix.m[col][row] * factor;
     return result;
 }
 
@@ -302,8 +312,9 @@ template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T> operator*(const QGenericMatrix<N, M, T>& matrix, T factor)
 {
     QGenericMatrix<N, M, T> result(1);
-    for (int index = 0; index < N * M; ++index)
-        result.m[0][index] = matrix.m[0][index] * factor;
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            result.m[col][row] = matrix.m[col][row] * factor;
     return result;
 }
 
@@ -311,8 +322,9 @@ template <int N, int M, typename T>
 Q_OUTOFLINE_TEMPLATE QGenericMatrix<N, M, T> operator/(const QGenericMatrix<N, M, T>& matrix, T divisor)
 {
     QGenericMatrix<N, M, T> result(1);
-    for (int index = 0; index < N * M; ++index)
-        result.m[0][index] = matrix.m[0][index] / divisor;
+    for (int row = 0; row < M; ++row)
+        for (int col = 0; col < N; ++col)
+            result.m[col][row] = matrix.m[col][row] / divisor;
     return result;
 }
 
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp
index 3bd6122..17d5fc1 100644
--- a/src/gui/text/qtextengine.cpp
+++ b/src/gui/text/qtextengine.cpp
@@ -894,16 +894,16 @@ void QTextEngine::shapeText(int item) const
                 if (letterSpacingIsAbsolute)
                     glyphs.advances_x[i-1] += letterSpacing;
                 else {
-                    const QFixed advance = glyphs.advances_x[i-1];
-                    glyphs.advances_x[i-1] += (letterSpacing - 100) * advance / 100;
+                    QFixed &advance = glyphs.advances_x[i-1];
+                    advance += (letterSpacing - 100) * advance / 100;
                 }
             }
         }
         if (letterSpacingIsAbsolute)
             glyphs.advances_x[si.num_glyphs-1] += letterSpacing;
         else {
-            const QFixed advance = glyphs.advances_x[si.num_glyphs-1];
-            glyphs.advances_x[si.num_glyphs-1] += (letterSpacing - 100) * advance / 100;
+            QFixed &advance = glyphs.advances_x[si.num_glyphs-1];
+            advance += (letterSpacing - 100) * advance / 100;
         }
     }
     if (wordSpacing != 0) {
@@ -2521,14 +2521,14 @@ void QTextEngine::setBoundary(int strPos) const
         return;
 
     int itemToSplit = 0;
-    while (itemToSplit < layoutData->items.size() && layoutData->items[itemToSplit].position <= strPos)
+    while (itemToSplit < layoutData->items.size() && layoutData->items.at(itemToSplit).position <= strPos)
         itemToSplit++;
     itemToSplit--;
-    if (layoutData->items[itemToSplit].position == strPos) {
+    if (layoutData->items.at(itemToSplit).position == strPos) {
         // already a split at the requested position
         return;
     }
-    splitItem(itemToSplit, strPos - layoutData->items[itemToSplit].position);
+    splitItem(itemToSplit, strPos - layoutData->items.at(itemToSplit).position);
 }
 
 void QTextEngine::splitItem(int item, int pos) const
diff --git a/src/gui/widgets/qstatusbar.cpp b/src/gui/widgets/qstatusbar.cpp
index c88d2a1..c60913e 100644
--- a/src/gui/widgets/qstatusbar.cpp
+++ b/src/gui/widgets/qstatusbar.cpp
@@ -575,7 +575,7 @@ void QStatusBar::reformat()
     d->savedStrut = maxH;
     vbox->addSpacing(2);
     d->box->activate();
-    repaint();
+    update();
 }
 
 /*!