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

* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml: (119 commits)
  Add Mac OS X bundle description for qml runtime
  Cleanup
  Disallow writes to read-only value type properties
  Allow undefined to be assigned to QVariant properties
  Add a Qt.isQtObject() method
  Fix crash in QML library imports
  Remove QT_VERSION checks in QML
  List properties aren't read-only
  Small doc fix.
  Make sure WorkerScript thread is stopped on deletion. This also fixes
  Release ListModel's worker agent on deletion.
  Doc fixes
  Fix example
  Example code style improvements
  Enable other wrapping modes.
  TextEdit::wrap changed to TextEdit::wrapMode enumeration
  Remove use of obsolete "Script" element.
  unwarn
  Replace "var" with "variant" in tests
  Fix test after deletion of GraphicsObjectContainer.
  ...

1 files changed, 61 insertions, 11 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativegridview.cpp b/src/declarative/graphicsitems/qdeclarativegridview.cpp
index 8247f17..9be025a 100644
--- a/src/declarative/graphicsitems/qdeclarativegridview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativegridview.cpp
@@ -102,10 +102,11 @@ public:
     QDeclarativeGridViewPrivate()
     : currentItem(0), flow(QDeclarativeGridView::LeftToRight)
     , visibleIndex(0) , currentIndex(-1)
-    , cellWidth(100), cellHeight(100), columns(1), requestedIndex(-1)
+    , cellWidth(100), cellHeight(100), columns(1), requestedIndex(-1), itemCount(0)
     , highlightRangeStart(0), highlightRangeEnd(0), highlightRange(QDeclarativeGridView::NoHighlightRange)
     , highlightComponent(0), highlight(0), trackedItem(0)
     , moveReason(Other), buffer(0), highlightXAnimator(0), highlightYAnimator(0)
+    , highlightMoveDuration(150)
     , bufferMode(NoBuffer), snapMode(QDeclarativeGridView::NoSnap)
     , ownModel(false), wrap(false), autoHighlight(true)
     , fixCurrentVisibility(false), lazyRelease(false), layoutScheduled(false)
@@ -315,6 +316,7 @@ public:
     int cellHeight;
     int columns;
     int requestedIndex;
+    int itemCount;
     qreal highlightRangeStart;
     qreal highlightRangeEnd;
     QDeclarativeGridView::HighlightRangeMode highlightRange;
@@ -326,6 +328,7 @@ public:
     int buffer;
     QSmoothedAnimation *highlightXAnimator;
     QSmoothedAnimation *highlightYAnimator;
+    int highlightMoveDuration;
     enum BufferMode { NoBuffer = 0x00, BufferBefore = 0x01, BufferAfter = 0x02 };
     BufferMode bufferMode;
     QDeclarativeGridView::SnapMode snapMode;
@@ -358,6 +361,7 @@ void QDeclarativeGridViewPrivate::clear()
     currentItem = 0;
     createHighlight();
     trackedItem = 0;
+    itemCount = 0;
 }
 
 FxGridItem *QDeclarativeGridViewPrivate::createItem(int modelIndex)
@@ -403,6 +407,7 @@ void QDeclarativeGridViewPrivate::refill(qreal from, qreal to, bool doBuffer)
     if (!isValid() || !q->isComponentComplete())
         return;
 
+    itemCount = model->count();
     qreal bufferFrom = from - buffer;
     qreal bufferTo = to + buffer;
     qreal fillFrom = from;
@@ -546,6 +551,10 @@ void QDeclarativeGridViewPrivate::layout()
 {
     Q_Q(QDeclarativeGridView);
     layoutScheduled = false;
+    if (!isValid()) {
+        clear();
+        return;
+    }
     if (visibleItems.count()) {
         qreal rowPos = visibleItems.first()->rowPos();
         qreal colPos = visibleItems.first()->colPos();
@@ -662,10 +671,10 @@ void QDeclarativeGridViewPrivate::createHighlight()
             highlight = new FxGridItem(item, q);
             highlightXAnimator = new QSmoothedAnimation(q);
             highlightXAnimator->target = QDeclarativeProperty(highlight->item, QLatin1String("x"));
-            highlightXAnimator->userDuration = 150;
+            highlightXAnimator->userDuration = highlightMoveDuration;
             highlightYAnimator = new QSmoothedAnimation(q);
             highlightYAnimator->target = QDeclarativeProperty(highlight->item, QLatin1String("y"));
-            highlightYAnimator->userDuration = 150;
+            highlightYAnimator->userDuration = highlightMoveDuration;
             highlightXAnimator->restart();
             highlightYAnimator->restart();
             changed = true;
@@ -1197,6 +1206,37 @@ void QDeclarativeGridView::setHighlightFollowsCurrentItem(bool autoHighlight)
 }
 
 /*!
+    \qmlproperty int GridView::highlightMoveDuration
+    This property holds the move animation duration of the highlight delegate.
+
+    highlightFollowsCurrentItem must be true for this property
+    to have effect.
+
+    The default value for the duration is 150ms.
+
+    \sa highlightFollowsCurrentItem
+*/
+int QDeclarativeGridView::highlightMoveDuration() const
+{
+    Q_D(const QDeclarativeGridView);
+    return d->highlightMoveDuration;
+}
+
+void QDeclarativeGridView::setHighlightMoveDuration(int duration)
+{
+    Q_D(QDeclarativeGridView);
+    if (d->highlightMoveDuration != duration) {
+        d->highlightMoveDuration = duration;
+        if (d->highlightYAnimator) {
+            d->highlightXAnimator->userDuration = d->highlightMoveDuration;
+            d->highlightYAnimator->userDuration = d->highlightMoveDuration;
+        }
+        emit highlightMoveDurationChanged();
+    }
+}
+
+
+/*!
     \qmlproperty real GridView::preferredHighlightBegin
     \qmlproperty real GridView::preferredHighlightEnd
     \qmlproperty enumeration GridView::highlightRangeMode
@@ -1781,12 +1821,14 @@ void QDeclarativeGridView::componentComplete()
     Q_D(QDeclarativeGridView);
     QDeclarativeFlickable::componentComplete();
     d->updateGrid();
-    refill();
-    if (d->currentIndex < 0)
-        d->updateCurrent(0);
-    else
-        d->updateCurrent(d->currentIndex);
-    d->fixupPosition();
+    if (d->isValid()) {
+        refill();
+        if (d->currentIndex < 0)
+            d->updateCurrent(0);
+        else
+            d->updateCurrent(d->currentIndex);
+        d->fixupPosition();
+    }
 }
 
 void QDeclarativeGridView::trackedPositionChanged()
@@ -1859,6 +1901,7 @@ void QDeclarativeGridView::itemsInserted(int modelIndex, int count)
         } else if (d->currentIndex < 0) {
             d->updateCurrent(0);
         }
+        d->itemCount += count;
         emit countChanged();
         return;
     }
@@ -1889,6 +1932,7 @@ void QDeclarativeGridView::itemsInserted(int modelIndex, int count)
                 emit currentIndexChanged();
             }
             d->scheduleLayout();
+            d->itemCount += count;
             emit countChanged();
             return;
         }
@@ -1976,6 +2020,7 @@ void QDeclarativeGridView::itemsInserted(int modelIndex, int count)
     for (int j = 0; j < added.count(); ++j)
         added.at(j)->attached->emitAdd();
 
+    d->itemCount += count;
     emit countChanged();
 }
 
@@ -1984,6 +2029,8 @@ void QDeclarativeGridView::itemsRemoved(int modelIndex, int count)
     Q_D(QDeclarativeGridView);
     if (!isComponentComplete())
         return;
+
+    d->itemCount -= count;
     bool currentRemoved = d->currentIndex >= modelIndex && d->currentIndex < modelIndex + count;
     bool removedVisible = false;
 
@@ -2031,7 +2078,8 @@ void QDeclarativeGridView::itemsRemoved(int modelIndex, int count)
         d->releaseItem(d->currentItem);
         d->currentItem = 0;
         d->currentIndex = -1;
-        d->updateCurrent(qMin(modelIndex, d->model->count()-1));
+        if (d->itemCount)
+            d->updateCurrent(qMin(modelIndex, d->itemCount-1));
     }
 
     // update visibleIndex
@@ -2046,7 +2094,7 @@ void QDeclarativeGridView::itemsRemoved(int modelIndex, int count)
     if (removedVisible && d->visibleItems.isEmpty()) {
         d->timeline.clear();
         d->setPosition(0);
-        if (d->model->count() == 0)
+        if (d->itemCount == 0)
             update();
     }
 
@@ -2118,6 +2166,8 @@ void QDeclarativeGridView::itemsMoved(int from, int to, int count)
             if (!movedItem)
                 movedItem = d->createItem(item->index);
             it = d->visibleItems.insert(it, movedItem);
+            if (it == d->visibleItems.begin() && firstItem)
+                movedItem->setPosition(firstItem->colPos(), firstItem->rowPos());
             ++it;
             --remaining;
         } else {