Merge remote branch 'origin/master' into qt-master-from-4.6

Conflicts:
	configure.exe
	src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
	src/opengl/qgl.cpp

3 files changed, 23 insertions, 1 deletions

diff --git a/src/gui/widgets/qdockwidget.cpp b/src/gui/widgets/qdockwidget.cpp
index fdace46..54189de 100644
--- a/src/gui/widgets/qdockwidget.cpp
+++ b/src/gui/widgets/qdockwidget.cpp
@@ -1010,7 +1010,7 @@ void QDockWidgetPrivate::setWindowState(bool floating, bool unplug, const QRect
 
     if (!floating && parent) {
         QMainWindowLayout *mwlayout = qobject_cast<QMainWindowLayout *>(q->parentWidget()->layout());
-        if (!mwlayout || mwlayout->dockWidgetArea(q) == Qt::NoDockWidgetArea)
+        if (mwlayout && mwlayout->dockWidgetArea(q) == Qt::NoDockWidgetArea)
             return; // this dockwidget can't be redocked
     }
 
diff --git a/src/gui/widgets/qplaintextedit.cpp b/src/gui/widgets/qplaintextedit.cpp
index 0d798b7..ef9fac3 100644
--- a/src/gui/widgets/qplaintextedit.cpp
+++ b/src/gui/widgets/qplaintextedit.cpp
@@ -1320,6 +1320,26 @@ QTextCursor QPlainTextEdit::textCursor() const
     return d->control->textCursor();
 }
 
+/*!
+    Returns the reference of the anchor at position \a pos, or an
+    empty string if no anchor exists at that point.
+
+    \since 4.7
+ */
+QString QPlainTextEdit::anchorAt(const QPoint &pos) const
+{
+    Q_D(const QPlainTextEdit);
+    int cursorPos = d->control->hitTest(pos + QPoint(d->horizontalOffset(),
+                                                     d->verticalOffset()),
+                                        Qt::ExactHit);
+    if (cursorPos < 0)
+        return QString();
+
+    QTextDocumentPrivate *pieceTable = document()->docHandle();
+    QTextDocumentPrivate::FragmentIterator it = pieceTable->find(cursorPos);
+    QTextCharFormat fmt = pieceTable->formatCollection()->charFormat(it->format);
+    return fmt.anchorHref();
+}
 
 /*!
     Undoes the last operation.
diff --git a/src/gui/widgets/qplaintextedit.h b/src/gui/widgets/qplaintextedit.h
index 15cf0967..106ae6d 100644
--- a/src/gui/widgets/qplaintextedit.h
+++ b/src/gui/widgets/qplaintextedit.h
@@ -159,6 +159,8 @@ public:
     QRect cursorRect(const QTextCursor &cursor) const;
     QRect cursorRect() const;
 
+    QString anchorAt(const QPoint &pos) const;
+
     bool overwriteMode() const;
     void setOverwriteMode(bool overwrite);