Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1: (26 commits)
  Fix incorrect usage of _HB_OPEN_Free_Device() in CaretValue cleanup
  Fix null HB_Device** dereference on exit in Harfbuzz GPOS code
  Doc: Relicensed the documentation under the GNU FDL version 1.3.
  doc: Added more DITA output to the XML generator
  Designer: Prevent QButtonGroup from being added for Q3ButtonGroup.
  Fix for a leak in the mac style.
  Doc: Fixing bugs to style and script
  doc: Added more DITA output to the XML generator
  Make sure that <br/> is seen as a valid tag in Qt::mightBeRichText()
  Fix compiler warnings in QtGui (text,painting).
  Allow Unix to generate unique UUIDs if /dev/urandom exists.
  Allow GNU Free Documentation license header.
  Add missing license header.
  Updated Harfbuzz from git+ssh://git.freedesktop.org/git/harfbuzz to ab9a897b688e991a8405cf938dea9d6a2f1ac072
  Fix example compile and runtime warnings, webkit examples not built.
  qgl_cl_p.h is no longer existent
  Updated Harfbuzz from git+ssh://git.freedesktop.org/git/harfbuzz to 5699175f55acbdfa4ac95ab6c727ebd4a201f3a2
  Doc: Fixed documentation errors.
  doc: Added more DITA output to the XML generator
  doc: Fixed type of Package::name
  ...

1 files changed, 18 insertions, 0 deletions

diff --git a/src/corelib/io/qbuffer.cpp b/src/corelib/io/qbuffer.cpp
index c1ff353..73c71ea 100644
--- a/src/corelib/io/qbuffer.cpp
+++ b/src/corelib/io/qbuffer.cpp
@@ -62,6 +62,9 @@ public:
     QByteArray defaultBuf;
     int ioIndex;
 
+    virtual qint64 peek(char *data, qint64 maxSize);
+    virtual QByteArray peek(qint64 maxSize);
+
 #ifndef QT_NO_QOBJECT
     // private slots
     void _q_emitSignals();
@@ -83,6 +86,21 @@ void QBufferPrivate::_q_emitSignals()
 }
 #endif
 
+qint64 QBufferPrivate::peek(char *data, qint64 maxSize)
+{
+    qint64 readBytes = qMin(maxSize, static_cast<qint64>(buf->size()) - pos);
+    memcpy(data, buf->constData() + pos, readBytes);
+    return readBytes;
+}
+
+QByteArray QBufferPrivate::peek(qint64 maxSize)
+{
+    qint64 readBytes = qMin(maxSize, static_cast<qint64>(buf->size()) - pos);
+    if (pos == 0 && maxSize >= buf->size())
+        return *buf;
+    return QByteArray(buf->constData() + pos, readBytes);
+}
+
 /*!
     \class QBuffer
     \reentrant