Merge branch 'qt-master-from-4.7' of scm.dev.nokia.troll.no:qt/qt-integration into master-integration

* 'qt-master-from-4.7' of scm.dev.nokia.troll.no:qt/qt-integration:
  PathView crashed when the path is provided with undefined values.
  PathView: update modelCount before attempting to regenerate delegates.
  Update docs - calling overloaded functions from QML is now supported
  Doc fixes for introduction page and Item docs

3 files changed, 10 insertions, 30 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativeitem.cpp b/src/declarative/graphicsitems/qdeclarativeitem.cpp
index 24d9b03..922fa8f 100644
--- a/src/declarative/graphicsitems/qdeclarativeitem.cpp
+++ b/src/declarative/graphicsitems/qdeclarativeitem.cpp
@@ -1333,23 +1333,6 @@ QDeclarativeKeysAttached *QDeclarativeKeysAttached::qmlAttachedProperties(QObjec
     }
     \endqml
 
-    \section1 Identity
-
-    Each item has an "id" - the identifier of the Item.
-
-    The identifier can be used in bindings and other expressions to
-    refer to the item. For example:
-
-    \qml
-    Text { id: myText; ... }
-    Text { text: myText.text }
-    \endqml
-
-    The identifier is available throughout to the \l {components}{component}
-    where it is declared.  The identifier must be unique in the component.
-
-    The id should not be thought of as a "property" - it makes no sense
-    to write \c myText.id, for example.
 
     \section1 Key Handling
 
@@ -1376,17 +1359,6 @@ QDeclarativeKeysAttached *QDeclarativeKeysAttached::qmlAttachedProperties(QObjec
     \endqml
 
     See the \l {Keys}{Keys} attached property for detailed documentation.
-
-    \section1 Property Change Signals
-
-    Most properties on Item and Item derivatives have a signal
-    emitted when they change. By convention, the signals are
-    named <propertyName>Changed, e.g. xChanged will be emitted when an item's
-    x property changes. Note that these also have signal handers e.g.
-    the onXChanged signal handler will be called when an item's x property
-    changes. For many properties in Item or Item derivatives this can be used
-    to add a touch of imperative logic to your application (when absolutely
-    necessary).
 */
 
 /*!
diff --git a/src/declarative/graphicsitems/qdeclarativepath.cpp b/src/declarative/graphicsitems/qdeclarativepath.cpp
index 966c51b..e63a2c3 100644
--- a/src/declarative/graphicsitems/qdeclarativepath.cpp
+++ b/src/declarative/graphicsitems/qdeclarativepath.cpp
@@ -46,6 +46,8 @@
 #include <QTime>
 
 #include <private/qbezier_p.h>
+#include <QtCore/qmath.h>
+#include <QtCore/qnumeric.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -367,9 +369,11 @@ void QDeclarativePath::createPointCache() const
 {
     Q_D(const QDeclarativePath);
     qreal pathLength = d->_path.length();
+    if (pathLength <= 0 || qIsNaN(pathLength))
+        return;
     // more points means less jitter between items as they move along the
     // path, but takes longer to generate
-    const int points = int(pathLength*5);
+    const int points = qCeil(pathLength*5);
     const int lastElement = d->_path.elementCount() - 1;
     d->_pointCache.resize(points+1);
 
@@ -418,6 +422,8 @@ QPointF QDeclarativePath::pointAt(qreal p) const
     Q_D(const QDeclarativePath);
     if (d->_pointCache.isEmpty()) {
         createPointCache();
+        if (d->_pointCache.isEmpty())
+            return QPointF();
     }
     int idx = qRound(p*d->_pointCache.size());
     if (idx >= d->_pointCache.size())
diff --git a/src/declarative/graphicsitems/qdeclarativepathview.cpp b/src/declarative/graphicsitems/qdeclarativepathview.cpp
index e3987d0..74d3418 100644
--- a/src/declarative/graphicsitems/qdeclarativepathview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativepathview.cpp
@@ -1318,8 +1318,10 @@ void QDeclarativePathView::componentComplete()
     // It is possible that a refill has already happended to to Path
     // bindings being handled in the componentComplete().  If so
     // don't do it again.
-    if (d->items.count() == 0)
+    if (d->items.count() == 0 && d->model) {
+        d->modelCount = d->model->count();
         d->regenerate();
+    }
     d->updateHighlight();
 }