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: (52 commits)
  Update QtDeclarative def files
  Fix exponential behavior of QTextCursor::removeSelectedText
  Optimization: change signal/slot to function call
  Don't show warning for attempts to load pixmaps asynchronously
  Remove Image::pixmap property. QML applications should use
  Update QmlChanges.txt
  Don't double delete cancelled pixmap cache requests
  Extend QDeclarativeImageProvider to support QPixmap loading and
  Allow the debugger to modify method bodies
  Micro optimization in QML date/time formatting functions.
  Fix Symbian build
  QML: Let the debugger now the name of embedded functions within a QML function
  Added QDeclarativeSpringAnimation
  docs
  Add Symbian support for runtime.orientation property
  Don't crash if drag.target has no parentItem
  QDeclarativeText optimization.
  Make Text, TextInput, and TextEdit all have the same size for the same text.
  More generated images in anticipation of QT-3574
  Remove deprecated Flickable.flickDirection
  ...

4 files changed, 36 insertions, 22 deletions

diff --git a/src/gui/text/qtextcursor.cpp b/src/gui/text/qtextcursor.cpp
index a9caa6b..63aa946 100644
--- a/src/gui/text/qtextcursor.cpp
+++ b/src/gui/text/qtextcursor.cpp
@@ -64,7 +64,8 @@ enum {
 
 QTextCursorPrivate::QTextCursorPrivate(QTextDocumentPrivate *p)
     : priv(p), x(0), position(0), anchor(0), adjusted_anchor(0),
-      currentCharFormat(-1), visualNavigation(false), keepPositionOnInsert(false)
+      currentCharFormat(-1), visualNavigation(false), keepPositionOnInsert(false),
+      changed(false)
 {
     priv->addCursor(this);
 }
diff --git a/src/gui/text/qtextcursor_p.h b/src/gui/text/qtextcursor_p.h
index 4e36b95..4b3262f 100644
--- a/src/gui/text/qtextcursor_p.h
+++ b/src/gui/text/qtextcursor_p.h
@@ -114,6 +114,7 @@ public:
     int currentCharFormat;
     uint visualNavigation : 1;
     uint keepPositionOnInsert : 1;
+    uint changed : 1;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/text/qtextdocument_p.cpp b/src/gui/text/qtextdocument_p.cpp
index f3cd481..54bf36b 100644
--- a/src/gui/text/qtextdocument_p.cpp
+++ b/src/gui/text/qtextdocument_p.cpp
@@ -205,6 +205,7 @@ QTextDocumentPrivate::QTextDocumentPrivate()
 
     undoEnabled = true;
     inContentsChange = false;
+    blockCursorAdjustment = false;
 
     defaultTextOption.setTabStop(80); // same as in qtextengine.cpp
     defaultTextOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
@@ -234,17 +235,17 @@ void QTextDocumentPrivate::init()
 void QTextDocumentPrivate::clear()
 {
     Q_Q(QTextDocument);
-    for (int i = 0; i < cursors.count(); ++i) {
-        cursors.at(i)->setPosition(0);
-        cursors.at(i)->currentCharFormat = -1;
-        cursors.at(i)->anchor = 0;
-        cursors.at(i)->adjusted_anchor = 0;
+
+    foreach (QTextCursorPrivate *curs, cursors) {
+        curs->setPosition(0);
+        curs->currentCharFormat = -1;
+        curs->anchor = 0;
+        curs->adjusted_anchor = 0;
     }
 
     QList<QTextCursorPrivate *>oldCursors = cursors;
     QT_TRY{
         cursors.clear();
-        changedCursors.clear();
 
         QMap<int, QTextObject *>::Iterator objectIt = objects.begin();
         while (objectIt != objects.end()) {
@@ -287,8 +288,8 @@ void QTextDocumentPrivate::clear()
 
 QTextDocumentPrivate::~QTextDocumentPrivate()
 {
-    for (int i = 0; i < cursors.count(); ++i)
-        cursors.at(i)->priv = 0;
+    foreach (QTextCursorPrivate *curs, cursors)
+        curs->priv = 0;
     cursors.clear();
     undoState = 0;
     undoEnabled = true;
@@ -669,7 +670,14 @@ void QTextDocumentPrivate::remove(int pos, int length, QTextUndoCommand::Operati
 {
     if (length == 0)
         return;
+    blockCursorAdjustment = true;
     move(pos, -1, length, op);
+    blockCursorAdjustment = false;
+    foreach (QTextCursorPrivate *curs, cursors) {
+        if (curs->adjustPosition(pos, -length, op) == QTextCursorPrivate::CursorMoved) {
+            curs->changed = true;
+        }
+    }
 }
 
 void QTextDocumentPrivate::setCharFormat(int pos, int length, const QTextCharFormat &newFormat, FormatChangeMode mode)
@@ -1221,9 +1229,11 @@ void QTextDocumentPrivate::finishEdit()
         }
     }
 
-    while (!changedCursors.isEmpty()) {
-        QTextCursorPrivate *curs = changedCursors.takeFirst();
-        emit q->cursorPositionChanged(QTextCursor(curs));
+    foreach (QTextCursorPrivate *curs, cursors) {
+        if (curs->changed) {
+            curs->changed = false;
+            emit q->cursorPositionChanged(QTextCursor(curs));
+        }
     }
 
     contentsChanged();
@@ -1266,11 +1276,13 @@ void QTextDocumentPrivate::adjustDocumentChangesAndCursors(int from, int addedOr
     if (!editBlock)
         ++revision;
 
-    for (int i = 0; i < cursors.size(); ++i) {
-        QTextCursorPrivate *curs = cursors.at(i);
-        if (curs->adjustPosition(from, addedOrRemoved, op) == QTextCursorPrivate::CursorMoved) {
-            if (!changedCursors.contains(curs))
-                changedCursors.append(curs);
+    if (blockCursorAdjustment)  {
+        ; // postpone, will be called again from QTextDocumentPrivate::remove()
+    } else {
+        foreach (QTextCursorPrivate *curs, cursors) {
+            if (curs->adjustPosition(from, addedOrRemoved, op) == QTextCursorPrivate::CursorMoved) {
+                curs->changed = true;
+            }
         }
     }
 
@@ -1693,8 +1705,8 @@ bool QTextDocumentPrivate::ensureMaximumBlockCount()
 void QTextDocumentPrivate::aboutToRemoveCell(int from, int to)
 {
     Q_ASSERT(from <= to);
-    for (int i = 0; i < cursors.size(); ++i)
-        cursors.at(i)->aboutToRemoveCell(from, to);
+    foreach (QTextCursorPrivate *curs, cursors)
+        curs->aboutToRemoveCell(from, to);
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/text/qtextdocument_p.h b/src/gui/text/qtextdocument_p.h
index d1bd698..b46d01c 100644
--- a/src/gui/text/qtextdocument_p.h
+++ b/src/gui/text/qtextdocument_p.h
@@ -277,7 +277,7 @@ public:
     void documentChange(int from, int length);
 
     inline void addCursor(QTextCursorPrivate *c) { cursors.append(c); }
-    inline void removeCursor(QTextCursorPrivate *c) { cursors.removeAll(c); changedCursors.removeAll(c); }
+    inline void removeCursor(QTextCursorPrivate *c) { cursors.removeAll(c); }
 
     QTextFrame *frameAt(int pos) const;
     QTextFrame *rootFrame() const;
@@ -329,8 +329,7 @@ private:
     BlockMap blocks;
     int initialBlockCharFormatIndex;
 
-    QList<QTextCursorPrivate*> cursors;
-    QList<QTextCursorPrivate*> changedCursors;
+    QList<QTextCursorPrivate *> cursors;
     QMap<int, QTextObject *> objects;
     QMap<QUrl, QVariant> resources;
     QMap<QUrl, QVariant> cachedResources;
@@ -346,6 +345,7 @@ public:
     int maximumBlockCount;
     uint needsEnsureMaximumBlockCount : 1;
     uint inContentsChange : 1;
+    uint blockCursorAdjustment : 1;
     QSizeF pageSize;
     QString title;
     QString url;