Merge commit 'qt/master'

Conflicts:
	examples/painting/svgviewer/files/bubbles.svg
	src/corelib/kernel/qobject.cpp
	src/network/kernel/qhostinfo.cpp
	tests/auto/qhostinfo/tst_qhostinfo.cpp

3 files changed, 60 insertions, 40 deletions

diff --git a/doc/src/examples/qxmlstreambookmarks.qdoc b/doc/src/examples/qxmlstreambookmarks.qdoc
index 26964c4..904cd6d 100644
--- a/doc/src/examples/qxmlstreambookmarks.qdoc
+++ b/doc/src/examples/qxmlstreambookmarks.qdoc
@@ -51,10 +51,10 @@
 
     \section1 XbelWriter Class Definition
 
-    The \c XbelWriter class is a subclass of QXmlStreamReader, which provides
-    an XML parser with a streaming API. \c XbelWriter also contains a private
-    instance of QTreeWidget in order to display the bookmarks according to
-    hierarchies.
+    The \c XbelWriter class contains a private instance of QXmlStreamWriter,
+    which provides an XML writer with a streaming API. \c XbelWriter also
+    has a reference to the QTreeWidget instance where the bookmark hierarchy
+    is stored.
 
     \snippet examples/xml/streambookmarks/xbelwriter.h 0
 
@@ -75,7 +75,7 @@
 
     \snippet examples/xml/streambookmarks/xbelwriter.cpp 1
 
-    The \c writeItem() function accepts a QTreeWidget object and writes it
+    The \c writeItem() function accepts a QTreeWidgetItem object and writes it
     to the stream, depending on its \c tagName, which can either be a "folder",
     "bookmark", or "separator".
 
@@ -83,9 +83,10 @@
 
     \section1 XbelReader Class Definition
 
-    The \c XbelReader class is a subclass of QXmlStreamReader, the pendent
-    class for QXmlStreamWriter. \c XbelReader contains a private instance
-    of QTreeWidget to group bookmarks according to their hierarchies.
+    The \c XbelReader contains a private instance of QXmlStreamReader, the
+    companion class to QXmlStreamWriter. \c XbelReader also contains a
+    reference to the QTreeWidget that is used to group the bookmarks according
+    to their hierarchy.
 
     \snippet examples/xml/streambookmarks/xbelreader.h 0
 
@@ -102,21 +103,26 @@
     \snippet examples/xml/streambookmarks/xbelreader.cpp 0
 
     The \c read() function accepts a QIODevice and sets it using
-    \l{QXmlStreamReader::setDevice()}{setDevice()}. The actual process
-    of reading only takes place if the file is a valid XBEL 1.0 file. 
-    Note that the XML input needs to be well-formed to be accepted by 
-    QXmlStreamReader. Otherwise, the \l{QXmlStreamReader::raiseError()}
-    {raiseError()} function is used to display an error message. Since the
-    XBEL reader is only concerned with reading XML elements, it makes
-    extensive use of the \l{QXmlStreamReader::readNextStartElement()}
+    \l{QXmlStreamReader::}{setDevice()}. The actual process of reading only
+    takes place if the file is a valid XBEL 1.0 file. Note that the XML input
+    needs to be well-formed to be accepted by QXmlStreamReader. Otherwise, the
+    \l{QXmlStreamReader::}{raiseError()} function is used to display an error
+    message. Since the XBEL reader is only concerned with reading XML elements,
+    it makes extensive use of the \l{QXmlStreamReader::}{readNextStartElement()}
     convenience function.
 
     \snippet examples/xml/streambookmarks/xbelreader.cpp 1
 
+    The \c errorString() function is used if an error occurred, in order to
+    obtain a description of the error complete with line and column number
+    information.
+
+    \snippet examples/xml/streambookmarks/xbelreader.cpp 2
+
     The \c readXBEL() function reads the name of a startElement and calls
     the appropriate function to read it, depending on whether if its a
     "folder", "bookmark" or "separator". Otherwise, it calls
-    \l{QXmlStreamReader::skipCurrentElement()}. The Q_ASSERT() macro is used
+    \l{QXmlStreamReader::}{skipCurrentElement()}. The Q_ASSERT() macro is used
     to provide a pre-condition for the function.
 
     \snippet examples/xml/streambookmarks/xbelreader.cpp 3
@@ -126,8 +132,8 @@
     \snippet examples/xml/streambookmarks/xbelreader.cpp 4
 
     The \c readSeparator() function creates a separator and sets its flags.
-    The text is set to 30 "0xB7", the HEX equivalent for period, and then
-    read using \c readElementText().
+    The text is set to 30 "0xB7", the HEX equivalent for period. The element
+    is then skipped using \l{QXmlStreamReader::}{skipCurrentElement()}.
 
     \snippet examples/xml/streambookmarks/xbelreader.cpp 5
 
diff --git a/doc/src/howtos/restoring-geometry.qdoc b/doc/src/howtos/restoring-geometry.qdoc
index c9e6f4f..cc6f3e1 100644
--- a/doc/src/howtos/restoring-geometry.qdoc
+++ b/doc/src/howtos/restoring-geometry.qdoc
@@ -45,25 +45,28 @@
 
     \ingroup best-practices
 
-	This document describes how to save and restore a window's
-    geometry using the geometry properties. On Windows, this is 
-    basically storing the result of QWidget::geometry() and calling
-    QWidget::setGeometry() in the next session before calling
-    \l{QWidget::show()}{show()}.
+    This document describes how to save and restore a \l{Window
+    Geometry}{window's geometry} using the geometry properties. On
+    Windows, this is basically storing the result of
+    QWidget::geometry() and calling QWidget::setGeometry() in the next
+    session before calling \l{QWidget::show()}{show()}.
 
-    On X11, this won't work because an invisible window doesn't have
-    a frame yet. The window manager will decorate the window later.
-    When this happens, the window shifts towards the bottom/right
-    corner of the screen depending on the size of the decoration frame.
-    Although X provides a way to avoid this shift, most window managers
-    fail to implement this feature.
+    On X11, this might not work because an invisible window does not
+    have a frame yet. The window manager will decorate the window
+    later.  When this happens, the window shifts towards the
+    bottom/right corner of the screen depending on the size of the
+    decoration frame.  Although X provides a way to avoid this shift,
+    some window managers fail to implement this feature.
 
     Since version 4.2, Qt provides functions that saves and restores a
     window's geometry and state for you. QWidget::saveGeometry()
     saves the window geometry and maximized/fullscreen state, while
     QWidget::restoreGeometry() restores it. The restore function also
     checks if the restored geometry is outside the available screen
-    geometry, and modifies it as appropriate if it is.
+    geometry, and modifies it as appropriate if it is:
+
+    \snippet doc/src/snippets/code/src_gui_widgets_qmainwindow.cpp 0
+    \snippet doc/src/snippets/code/src_gui_widgets_qmainwindow.cpp 1
 
     If those functions are not available or cannot be used, then a
     workaround is to call \l{QWidget::setGeometry()}{setGeometry()}
@@ -74,14 +77,6 @@
     \l{QWidget::pos()}{pos()} and \l{QWidget::size()}{size()} and to
     restore the geometry using \l{QWidget::resize()} and
     \l{QWidget::move()}{move()} before calling
-    \l{QWidget::show()}{show()}, as demonstrated in the following
-    code snippets (from the \l{mainwindows/application}{Application}
-    example):
-
-    \snippet examples/mainwindows/application/mainwindow.cpp 35
-    \codeline
-    \snippet examples/mainwindows/application/mainwindow.cpp 38
-
-    This method works on Windows, Mac OS X, and most X11 window
-    managers.
+    \l{QWidget::show()}{show()}, as demonstrated in the
+    \l{mainwindows/application}{Application} example.
 */
diff --git a/doc/src/snippets/code/src_gui_widgets_qmainwindow.cpp b/doc/src/snippets/code/src_gui_widgets_qmainwindow.cpp
new file mode 100644
index 0000000..0e4040a
--- /dev/null
+++ b/doc/src/snippets/code/src_gui_widgets_qmainwindow.cpp
@@ -0,0 +1,19 @@
+//! [0]
+void MyMainWindow::closeEvent(QCloseEvent *event)
+{
+    QSettings settings("MyCompany", "MyApp");
+    settings.setValue("geometry", saveGeometry());
+    settings.setValue("windowState", saveState());
+    QMainWindow::closeEvent(event);
+}
+//! [0]
+
+
+//! [1]
+void MainWindow::readSettings()
+{
+    QSettings settings("MyCompany", "MyApp");
+    restoreGeometry(settings.value("myWidget/geometry").toByteArray());
+    restoreState(settings.value("myWidget/windowState").toByteArray());
+}
+//! [1]