Merge branch '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.6-integration

* '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2: (23 commits)
  My changes
  Significant digits were lost in QDoubleSpinBox range when changing precision
  My changelog for 4.6.1.
  Added my changes to the 4.6.1 change log.
  Put LinesHint into QVectorPath hints to enable further optimizations
  Update changes file for 4.6.1
  Avoid coordinate limitations in the raster engine.
  Update changelog with my 4.6.1 changes.
  4.6.1 changes
  Fixed bug where QGLPixmapData::toImage() returned too dark image.
  Update change log with Yoann Lopes work.
  Fix completion in QFileDialog.
  Fix point drawing on raster engine for flat and square caps
  Update changes file with Rhys Weatherley's work.
  warning fixes for platforms, where qreal == float
  fix release mode crash in qfont.cpp initFontSubst() on Windows mobile
  Fixed justify aligned text drawing with the GL1 engine.
  Add odf-writer benchmark.
  Fixed subpixel antialiased text drawing with the GL2 engine.
  Fixes warning in the QMacStyle
  ...

22 files changed, 669 insertions, 332 deletions

diff --git a/dist/changes-4.6.1 b/dist/changes-4.6.1
index 0f8c2bc..7813cbe 100644
--- a/dist/changes-4.6.1
+++ b/dist/changes-4.6.1
@@ -55,14 +55,56 @@ QtGui
  - QApplication
     * [QTBUG-6654] Fix crashes when deleting QWidgets in touch event
       handlers.
-
+ - QPixmapCache
+    * Fixed a small leak when using the new QPixmapCAche::Key based API.
  - QPixmap
     * load() and loadFromData() can now support compressed GL textures
       in the DDS, ETC1, PVRTC2, and PVRTC4 formats if the OpenGL graphics
       system is active and the appropriate extensions are present in the
       GL implementation.
+    * [QTBUG-6840] Fixed load() to not modify referenced copies.
+    * [QTBUG-5840] Fixed a crash in fromImage() when passing in a null image.
+    * [QTBUG-6116] Fixed memory leak where a global object was not destroyed
+      at program exit.
+ - QRasterPixmapData
+    * [QTBUG-6985] Fixed metric() to return the correct height in mm.
  - QGraphicsObject
     * 'id' property was removed. Use the 'objectName' property instead.
+ - QPrinter
+    * [QTBUG-3412] QGraphicsProxyWidgets are now rendered correctly when
+      printing a QGraphicsScene to PDF format.
+ - QPainter
+    * [QTBUG-5939] Fixed incorrect redirection matrix that was causing
+      wrong transformation for QGraphicsProxyWidgets.
+    * [QTBUG-6684] Added optimizations of 32-bit blend functions
+      for ARM platforms with NEON support.
+ - QGraphicsEffect
+    * [QTBUG-5918] Fixed redraw bugs when using graphics effects on
+      items while animating them by transformations.
+ - QGraphicsView
+    * [QTBUG-6935] When using CacheBackground, the background is now
+      correctly repainted after the QGraphicsView is shown after being
+      hidden.
+    * [QTBUG-6835] Mouse tracking is now automatically enabled when using
+      AnchorUnderMouse for view transformation.
+    * [QTBUG-6958] Fix speed regression in _q_polishItems()
+    * [QTBUG-6544] Fix a crash on the focus chain when removing items from the scene.
+    * Fix a crash in KDE/Plasma with QGraphicsView with topLevels.
+ - QGraphicsItem
+    * [QTBUG-5917] Fixed memory leaks when removing a QGraphicsEffect from
+      a QGraphicsItem or QWidget with setGraphicsEffect(0).
+    * [QTBUG-5859] Fixes incorrect rounding of the exposed rectangle of the
+      QGraphicsItem causing painting issues when scaling the QGraphicsView.
+    * [QTBUG-5071] Fixes transformation problems when grouping/ungrouping
+      the item with a QGraphicsItemGroup.
+ - QGraphicsWidget
+    * [QTBUG-6272] Only call updateFont if the font have changed.
+ - QTextDocument
+    * [QTBUG-5397] Fixed printing of QTextDocuments not including custom
+      text objects.
+
+ - QTextDocument
+    * [QTBUG-6051] Fixed an endless loop when printing a QTextDocument.
 
  - QGraphicsScene
     * [QTBUG-6654] Fix crashes when deleting QGraphicsItems in touch
@@ -100,6 +142,50 @@ QtOpenGL
     * bindTexture(QString) now supports DDS, ETC1, PVRTC2, and PVRTC4
       compressed textures if the appropriate extensions are present
       in the GL implementation.
+    * bindTexture(QImage): Reduce double-copying of textures when flipping.
+    * [QTBUG-6454] Better EGL extension checking to avoid prefix problems
+      with EGL_foo matching EGL_foo_bar.
+    * [QTBUG-6217] Work around problems with glColor4ub() on Intel Q45/Q43
+      Express by consistently using glColor4f() everywhere.
+    * bindTexture(QImage): Fix GL_BGRA formats under OpenGL/ES by using
+      the same value for both internal and external texture formats.
+    * [QTBUG-5041] Disable depth testing while in renderText().
+ - QGLPaintDevice
+    * [QTBUG-6204] Rebind window surface fbo after native GL rendering.
+ - QGLEngineSelector
+    * [QTBUG-5638] Detect GL2 based on fragment shaders, not programs.
+      Fragment programs are a GL1 feature.
+ - QGLFramebufferObject
+    * [QTBUG-6712] Update docs to better explain how QPainter changes
+      the GL state when used on an FBO.
+ - QGLPixmapData
+    * [QTBUG-6902] Align GL_RGB data on a 4-byte line boundary.
+ - QTriangulatingStroker
+    * [QTBUG-6045] Crash in dashed line handling in the GL stroker.
+ - QGLGlyphCache
+    * [QTBUG-6936] Fix memory leak of QGLGlyphCoord objects.
+ - QGLWidget
+    * [QTBUG-5002, QTBUG-6931] Fixed QGLWidget::renderText().
+    * Fixed WA_TranslucentBackground for QGLWidgets on X11/EGL
+    * Fix EGL surface leaks when re-parenting on X11/EGL
+ - QGL2PaintEngineEx
+    * Performance: Don't mark brush as dirty if it hasn't changed
+    * Performance: Use 3x3 PMV matrices rather than 4x4
+    * Performance: Move the 0.5 offset we add for aliased rendering to updateMatrix()
+    * Performance: Remove superfluous enable/disable vertex arrtib arrays
+    * Performance: Track the glVertexAttribPointer and only update it if it's changed
+    * [QTBUG-7094]  Introduce new "snapToPixelGrid" flag for drawText
+
+QtOpenVG
+--------
+
+ - [QT-2555] Automatically destroy VG pixmaps when the last window surface
+   goes away to reduce memory consumption of backgrounded applications.
+ - [QTBUG-6639] Recover from out-of-memory when creating VGImage's.
+ - [QT-2554] Add a VGImage allocation pool to support reclaiming older
+   images when the GPU runs out of memory.
+ - [QTBUG-7051] Reset the OpenVG scissor after a native painting call-out.
+ - [QTBUG-7015] Avoid deep copies of QImage in QImage::bits() calls.
 
 QtwebKit
 --------
@@ -125,6 +211,15 @@ QtSql
  - foo
     * bar
 
+QtSvg
+-----
+
+ - QSvgRenderer
+    * [QTBUG-6867] Fixed regression in the parsing of paths with relative
+      offsets.
+    * [QTBUG-6899] Fixed crash when parsing invalid coordinate list.
+
+
 QtXml
 -----
 
@@ -134,8 +229,16 @@ QtXml
 Qt Plugins
 ----------
 
- - foo
-    * bar
+ - JPEG plugin
+    * Remove obsolete parameter string handling.
+    * [QT-2023] Re-implement ScaledSize, ClipRect, ScaledClipRect with
+      libjpeg features for greater performance.
+ - PBM plugin
+    * [QTBUG-6937] Use Mono instead of MonoLSB when writing pbm files.
+ - TIFF plugin
+    * [QTBUG-6870] BitsPerSample should default to 1 in TIFF files.
+ - PNG plugin
+    * [QTBUG-7161] Avoid a deep copy of QImage::bits() in the png writer.
 
 Third party components
 ----------------------
@@ -152,11 +255,16 @@ Third party components
 Qt for Unix (X11 and Mac OS X)
 ------------------------------
 
- - 
+ -
 
 Qt for Linux/X11
 ----------------
 
+ - [QTBUG-5732] Fixed querying of GLX extensions under X11.
+ - [QTBUG-5547] Fixed handling of the "..." button.
+ - Added new mkspec for Maemo targets (linux-g++-maemo)
+ - Added new mkspec for Scratchbox host compiler (unsupported/linux-host-g++)
+
  - QGuiEventDispatcherGlib (internal class)
     * Fix regression introduced in 4.6.0 that could cause X11 event
       processing to starve timer events.
@@ -172,6 +280,7 @@ Qt for Linux/X11
 
 Qt for Windows
 --------------
+ - [QTBUG-5145] Compile fixes for win32-icc.
 
  - QAtomicPointer
     * [QTBUG-6079] Fix compilation for 64-bit Windows targets.
@@ -187,6 +296,9 @@ Qt for Windows
 Qt for Mac OS X
 ---------------
 
+ - QPixmap
+   * [QTBUG-5070] Fixed a crash on Mac that could occur when loading
+   pixmaps of different sizes into the same QPixmap object.
  - [QTBUG-6973] Fixed a memory leak when using QWidget::setWindowIcon() in carbon.
  - [QTBUG-5186] Fixed a bug which caused drag and drop icons to show 
    incorrectly.
diff --git a/src/corelib/kernel/qmath.cpp b/src/corelib/kernel/qmath.cpp
index e89c1e6..a3586a4 100644
--- a/src/corelib/kernel/qmath.cpp
+++ b/src/corelib/kernel/qmath.cpp
@@ -44,262 +44,262 @@
 QT_BEGIN_NAMESPACE
 
 const qreal qt_sine_table[QT_SINE_TABLE_SIZE] = {
-    0.0,
-	0.024541228522912288,
-	0.049067674327418015,
-	0.073564563599667426,
-	0.098017140329560604,
-	0.1224106751992162,
-	0.14673047445536175,
-	0.17096188876030122,
-	0.19509032201612825,
-	0.2191012401568698,
-	0.24298017990326387,
-	0.26671275747489837,
-	0.29028467725446233,
-	0.31368174039889152,
-	0.33688985339222005,
-	0.35989503653498811,
-	0.38268343236508978,
-	0.40524131400498986,
-	0.42755509343028208,
-	0.44961132965460654,
-	0.47139673682599764,
-	0.49289819222978404,
-	0.51410274419322166,
-	0.53499761988709715,
-	0.55557023301960218,
-	0.57580819141784534,
-	0.59569930449243336,
-	0.61523159058062682,
-	0.63439328416364549,
-	0.65317284295377676,
-	0.67155895484701833,
-	0.68954054473706683,
-	0.70710678118654746,
-	0.72424708295146689,
-	0.74095112535495911,
-	0.75720884650648446,
-	0.77301045336273699,
-	0.78834642762660623,
-	0.80320753148064483,
-	0.81758481315158371,
-	0.83146961230254524,
-	0.84485356524970701,
-    0.85772861000027212,
-	0.87008699110871135,
-	0.88192126434835494,
-	0.89322430119551532,
-	0.90398929312344334,
-	0.91420975570353069,
-	0.92387953251128674,
-	0.93299279883473885,
-	0.94154406518302081,
-	0.94952818059303667,
-	0.95694033573220894,
-	0.96377606579543984,
-	0.97003125319454397,
-	0.97570213003852857,
-	0.98078528040323043,
-	0.98527764238894122,
-	0.98917650996478101,
-	0.99247953459870997,
-	0.99518472667219682,
-	0.99729045667869021,
-	0.99879545620517241,
-	0.99969881869620425,
-	1.0,
-	0.99969881869620425,
-	0.99879545620517241,
-	0.99729045667869021,
-	0.99518472667219693,
-	0.99247953459870997,
-	0.98917650996478101,
-	0.98527764238894122,
-	0.98078528040323043,
-	0.97570213003852857,
-	0.97003125319454397,
-	0.96377606579543984,
-	0.95694033573220894,
-	0.94952818059303667,
-	0.94154406518302081,
-	0.93299279883473885,
-	0.92387953251128674,
-	0.91420975570353069,
-	0.90398929312344345,
-	0.89322430119551521,
-	0.88192126434835505,
-	0.87008699110871146,
-	0.85772861000027212,
-	0.84485356524970723,
-	0.83146961230254546,
-	0.81758481315158371,
-	0.80320753148064494,
-	0.78834642762660634,
-	0.7730104533627371,
-	0.75720884650648468,
-	0.74095112535495899,
-	0.72424708295146689,
-	0.70710678118654757,
-	0.68954054473706705,
-	0.67155895484701855,
-	0.65317284295377664,
-	0.63439328416364549,
-	0.61523159058062693,
-	0.59569930449243347,
-	0.57580819141784545,
-	0.55557023301960218,
-	0.53499761988709715,
-	0.51410274419322177,
-	0.49289819222978415,
-	0.47139673682599786,
-	0.44961132965460687,
-	0.42755509343028203,
-	0.40524131400498992,
-	0.38268343236508989,
-	0.35989503653498833,
-	0.33688985339222033,
-	0.31368174039889141,
-	0.29028467725446239,
-	0.26671275747489848,
-	0.24298017990326407,
-	0.21910124015687005,
-	0.19509032201612861,
-	0.17096188876030122,
-	0.1467304744553618,
-	0.12241067519921635,
-	0.098017140329560826,
-	0.073564563599667732,
-	0.049067674327417966,
-	0.024541228522912326,
-	0.0,
-	-0.02454122852291208,
-	-0.049067674327417724,
-	-0.073564563599667496,
-	-0.09801714032956059,
-	-0.1224106751992161,
-	-0.14673047445536158,
-	-0.17096188876030097,
-	-0.19509032201612836,
-	-0.2191012401568698,
-	-0.24298017990326382,
-	-0.26671275747489825,
-	-0.29028467725446211,
-	-0.31368174039889118,
-	-0.33688985339222011,
-	-0.35989503653498811,
-	-0.38268343236508967,
-	-0.40524131400498969,
-	-0.42755509343028181,
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-	-0.55557023301960196,
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-	-0.098017140329560506,
-	-0.073564563599667412,
-	-0.049067674327418091,
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+    qreal(0.0),
+    qreal(0.024541228522912288),
+    qreal(0.049067674327418015),
+    qreal(0.073564563599667426),
+    qreal(0.098017140329560604),
+    qreal(0.1224106751992162),
+    qreal(0.14673047445536175),
+    qreal(0.17096188876030122),
+    qreal(0.19509032201612825),
+    qreal(0.2191012401568698),
+    qreal(0.24298017990326387),
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+    qreal(0.29028467725446233),
+    qreal(0.31368174039889152),
+    qreal(0.33688985339222005),
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+    qreal(0.38268343236508978),
+    qreal(0.40524131400498986),
+    qreal(0.42755509343028208),
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+    qreal(0.51410274419322166),
+    qreal(0.53499761988709715),
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+    qreal(0.57580819141784534),
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+    qreal(0.61523159058062682),
+    qreal(0.63439328416364549),
+    qreal(0.65317284295377676),
+    qreal(0.67155895484701833),
+    qreal(0.68954054473706683),
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+    qreal(0.72424708295146689),
+    qreal(0.74095112535495911),
+    qreal(0.75720884650648446),
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+    qreal(0.80320753148064483),
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+    qreal(0.84485356524970701),
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+    qreal(0.98917650996478101),
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+    qreal(0.99729045667869021),
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+    qreal(1.0),
+    qreal(0.99969881869620425),
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+    qreal(0.99729045667869021),
+    qreal(0.99518472667219693),
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+    qreal(0.84485356524970723),
+    qreal(0.83146961230254546),
+    qreal(0.81758481315158371),
+    qreal(0.80320753148064494),
+    qreal(0.78834642762660634),
+    qreal(0.7730104533627371),
+    qreal(0.75720884650648468),
+    qreal(0.74095112535495899),
+    qreal(0.72424708295146689),
+    qreal(0.70710678118654757),
+    qreal(0.68954054473706705),
+    qreal(0.67155895484701855),
+    qreal(0.65317284295377664),
+    qreal(0.63439328416364549),
+    qreal(0.61523159058062693),
+    qreal(0.59569930449243347),
+    qreal(0.57580819141784545),
+    qreal(0.55557023301960218),
+    qreal(0.53499761988709715),
+    qreal(0.51410274419322177),
+    qreal(0.49289819222978415),
+    qreal(0.47139673682599786),
+    qreal(0.44961132965460687),
+    qreal(0.42755509343028203),
+    qreal(0.40524131400498992),
+    qreal(0.38268343236508989),
+    qreal(0.35989503653498833),
+    qreal(0.33688985339222033),
+    qreal(0.31368174039889141),
+    qreal(0.29028467725446239),
+    qreal(0.26671275747489848),
+    qreal(0.24298017990326407),
+    qreal(0.21910124015687005),
+    qreal(0.19509032201612861),
+    qreal(0.17096188876030122),
+    qreal(0.1467304744553618),
+    qreal(0.12241067519921635),
+    qreal(0.098017140329560826),
+    qreal(0.073564563599667732),
+    qreal(0.049067674327417966),
+    qreal(0.024541228522912326),
+    qreal(0.0),
+    qreal(-0.02454122852291208),
+    qreal(-0.049067674327417724),
+    qreal(-0.073564563599667496),
+    qreal(-0.09801714032956059),
+    qreal(-0.1224106751992161),
+    qreal(-0.14673047445536158),
+    qreal(-0.17096188876030097),
+    qreal(-0.19509032201612836),
+    qreal(-0.2191012401568698),
+    qreal(-0.24298017990326382),
+    qreal(-0.26671275747489825),
+    qreal(-0.29028467725446211),
+    qreal(-0.31368174039889118),
+    qreal(-0.33688985339222011),
+    qreal(-0.35989503653498811),
+    qreal(-0.38268343236508967),
+    qreal(-0.40524131400498969),
+    qreal(-0.42755509343028181),
+    qreal(-0.44961132965460665),
+    qreal(-0.47139673682599764),
+    qreal(-0.49289819222978393),
+    qreal(-0.51410274419322155),
+    qreal(-0.53499761988709693),
+    qreal(-0.55557023301960196),
+    qreal(-0.57580819141784534),
+    qreal(-0.59569930449243325),
+    qreal(-0.61523159058062671),
+    qreal(-0.63439328416364527),
+    qreal(-0.65317284295377653),
+    qreal(-0.67155895484701844),
+    qreal(-0.68954054473706683),
+    qreal(-0.70710678118654746),
+    qreal(-0.72424708295146678),
+    qreal(-0.74095112535495888),
+    qreal(-0.75720884650648423),
+    qreal(-0.77301045336273666),
+    qreal(-0.78834642762660589),
+    qreal(-0.80320753148064505),
+    qreal(-0.81758481315158382),
+    qreal(-0.83146961230254524),
+    qreal(-0.84485356524970701),
+    qreal(-0.85772861000027201),
+    qreal(-0.87008699110871135),
+    qreal(-0.88192126434835494),
+    qreal(-0.89322430119551521),
+    qreal(-0.90398929312344312),
+    qreal(-0.91420975570353047),
+    qreal(-0.92387953251128652),
+    qreal(-0.93299279883473896),
+    qreal(-0.94154406518302081),
+    qreal(-0.94952818059303667),
+    qreal(-0.95694033573220882),
+    qreal(-0.96377606579543984),
+    qreal(-0.97003125319454397),
+    qreal(-0.97570213003852846),
+    qreal(-0.98078528040323032),
+    qreal(-0.98527764238894111),
+    qreal(-0.9891765099647809),
+    qreal(-0.99247953459871008),
+    qreal(-0.99518472667219693),
+    qreal(-0.99729045667869021),
+    qreal(-0.99879545620517241),
+    qreal(-0.99969881869620425),
+    qreal(-1.0),
+    qreal(-0.99969881869620425),
+    qreal(-0.99879545620517241),
+    qreal(-0.99729045667869021),
+    qreal(-0.99518472667219693),
+    qreal(-0.99247953459871008),
+    qreal(-0.9891765099647809),
+    qreal(-0.98527764238894122),
+    qreal(-0.98078528040323043),
+    qreal(-0.97570213003852857),
+    qreal(-0.97003125319454397),
+    qreal(-0.96377606579543995),
+    qreal(-0.95694033573220894),
+    qreal(-0.94952818059303679),
+    qreal(-0.94154406518302092),
+    qreal(-0.93299279883473907),
+    qreal(-0.92387953251128663),
+    qreal(-0.91420975570353058),
+    qreal(-0.90398929312344334),
+    qreal(-0.89322430119551532),
+    qreal(-0.88192126434835505),
+    qreal(-0.87008699110871146),
+    qreal(-0.85772861000027223),
+    qreal(-0.84485356524970723),
+    qreal(-0.83146961230254546),
+    qreal(-0.81758481315158404),
+    qreal(-0.80320753148064528),
+    qreal(-0.78834642762660612),
+    qreal(-0.77301045336273688),
+    qreal(-0.75720884650648457),
+    qreal(-0.74095112535495911),
+    qreal(-0.724247082951467),
+    qreal(-0.70710678118654768),
+    qreal(-0.68954054473706716),
+    qreal(-0.67155895484701866),
+    qreal(-0.65317284295377709),
+    qreal(-0.63439328416364593),
+    qreal(-0.61523159058062737),
+    qreal(-0.59569930449243325),
+    qreal(-0.57580819141784523),
+    qreal(-0.55557023301960218),
+    qreal(-0.53499761988709726),
+    qreal(-0.51410274419322188),
+    qreal(-0.49289819222978426),
+    qreal(-0.47139673682599792),
+    qreal(-0.44961132965460698),
+    qreal(-0.42755509343028253),
+    qreal(-0.40524131400499042),
+    qreal(-0.38268343236509039),
+    qreal(-0.359895036534988),
+    qreal(-0.33688985339222),
+    qreal(-0.31368174039889152),
+    qreal(-0.2902846772544625),
+    qreal(-0.26671275747489859),
+    qreal(-0.24298017990326418),
+    qreal(-0.21910124015687016),
+    qreal(-0.19509032201612872),
+    qreal(-0.17096188876030177),
+    qreal(-0.14673047445536239),
+    qreal(-0.12241067519921603),
+    qreal(-0.098017140329560506),
+    qreal(-0.073564563599667412),
+    qreal(-0.049067674327418091),
+    qreal(-0.024541228522912448)
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/dialogs/qfiledialog.cpp b/src/gui/dialogs/qfiledialog.cpp
index c70650d..3d59463 100644
--- a/src/gui/dialogs/qfiledialog.cpp
+++ b/src/gui/dialogs/qfiledialog.cpp
@@ -3245,6 +3245,10 @@ QString QFSCompleter::pathFromIndex(const QModelIndex &index) const
     QString currentLocation = dirModel->rootPath();
     QString path = index.data(QFileSystemModel::FilePathRole).toString();
     if (!currentLocation.isEmpty() && path.startsWith(currentLocation)) {
+#if defined(Q_OS_UNIX) || defined(Q_OS_WINCE)
+        if (currentLocation == QDir::separator())
+            return path.mid(currentLocation.length());
+#endif
         return path.mid(currentLocation.length() + 1);
     }
     return index.data(QFileSystemModel::FilePathRole).toString();
@@ -3300,6 +3304,10 @@ QStringList QFSCompleter::splitPath(const QString &path) const
         else
             dirModel = sourceModel;
         QString currentLocation = QDir::toNativeSeparators(dirModel->rootPath());
+#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
+        if (currentLocation.endsWith(QLatin1Char(':')))
+            currentLocation.append(sep);
+#endif
         if (currentLocation.contains(sep) && path != currentLocation) {
             QStringList currentLocationList = splitPath(currentLocation);
             while (!currentLocationList.isEmpty()
diff --git a/src/gui/itemviews/qabstractitemview.cpp b/src/gui/itemviews/qabstractitemview.cpp
index 2a1fba5..cbd9a8a 100644
--- a/src/gui/itemviews/qabstractitemview.cpp
+++ b/src/gui/itemviews/qabstractitemview.cpp
@@ -146,9 +146,16 @@ void QAbstractItemViewPrivate::setHoverIndex(const QPersistentModelIndex &index)
     if (hover == index)
         return;
 
-    q->update(hover); //update the old one
+    if (selectionBehavior != QAbstractItemView::SelectRows) {
+        q->update(hover); //update the old one
+        q->update(index); //update the new one
+    } else {
+        QRect oldHoverRect = q->visualRect(hover);
+        QRect newHoverRect = q->visualRect(index);
+        viewport->update(QRect(0, newHoverRect.y(), viewport->width(), newHoverRect.height()));
+        viewport->update(QRect(0, oldHoverRect.y(), viewport->width(), oldHoverRect.height()));
+    }
     hover = index;
-    q->update(hover); //update the new one
 }
 
 void QAbstractItemViewPrivate::checkMouseMove(const QPersistentModelIndex &index)
diff --git a/src/gui/itemviews/qtreeview.cpp b/src/gui/itemviews/qtreeview.cpp
index efb8422..d0fa22d 100644
--- a/src/gui/itemviews/qtreeview.cpp
+++ b/src/gui/itemviews/qtreeview.cpp
@@ -1241,15 +1241,6 @@ bool QTreeView::viewportEvent(QEvent *event)
                 viewport()->update(newRect);
             }
         }
-        if (selectionBehavior() == QAbstractItemView::SelectRows) {
-            QModelIndex newHoverIndex = indexAt(he->pos());
-            if (d->hover != newHoverIndex) {
-                QRect oldHoverRect = visualRect(d->hover);
-                QRect newHoverRect = visualRect(newHoverIndex);
-                viewport()->update(QRect(0, newHoverRect.y(), viewport()->width(), newHoverRect.height()));
-                viewport()->update(QRect(0, oldHoverRect.y(), viewport()->width(), oldHoverRect.height()));
-            }
-        }
         break; }
     default:
         break;
@@ -2644,10 +2635,13 @@ void QTreeView::selectAll()
         return;
     SelectionMode mode = d->selectionMode;
     d->executePostedLayout(); //make sure we lay out the items
-    if (mode != SingleSelection && !d->viewItems.isEmpty())
-        d->select(d->viewItems.first().index, d->viewItems.last().index,
+    if (mode != SingleSelection && !d->viewItems.isEmpty()) {
+        const QModelIndex &idx = d->viewItems.last().index;
+        QModelIndex lastItemIndex = idx.sibling(idx.row(), d->model->columnCount(idx.parent()) - 1);
+        d->select(d->viewItems.first().index, lastItemIndex,
                   QItemSelectionModel::ClearAndSelect
                   |QItemSelectionModel::Rows);
+    }
 }
 
 /*!
diff --git a/src/gui/painting/qoutlinemapper.cpp b/src/gui/painting/qoutlinemapper.cpp
index 51b3691..ad0c2eb 100644
--- a/src/gui/painting/qoutlinemapper.cpp
+++ b/src/gui/painting/qoutlinemapper.cpp
@@ -225,9 +225,10 @@ void QOutlineMapper::endOutline()
     controlPointRect = boundingRect(elements, element_count);
 
 #ifdef QT_DEBUG_CONVERT
-    printf(" - control point rect (%.2f, %.2f) %.2f x %.2f\n",
+    printf(" - control point rect (%.2f, %.2f) %.2f x %.2f, clip=(%d,%d, %dx%d)\n",
            controlPointRect.x(), controlPointRect.y(),
-           controlPointRect.width(), controlPointRect.height());
+           controlPointRect.width(), controlPointRect.height(),
+           m_clip_rect.x(), m_clip_rect.y(), m_clip_rect.width(), m_clip_rect.height());
 #endif
 
 
@@ -235,7 +236,9 @@ void QOutlineMapper::endOutline()
     const bool do_clip = (controlPointRect.left() < -QT_RASTER_COORD_LIMIT
                           || controlPointRect.right() > QT_RASTER_COORD_LIMIT
                           || controlPointRect.top() < -QT_RASTER_COORD_LIMIT
-                          || controlPointRect.bottom() > QT_RASTER_COORD_LIMIT);
+                          || controlPointRect.bottom() > QT_RASTER_COORD_LIMIT
+                          || controlPointRect.width() > QT_RASTER_COORD_LIMIT
+                          || controlPointRect.height() > QT_RASTER_COORD_LIMIT);
 
     if (do_clip) {
         clipElements(elements, elementTypes(), element_count);
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 0e7adf3..3f2322e 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -475,8 +475,10 @@ bool QRasterPaintEngine::begin(QPaintDevice *device)
     QRasterPaintEngineState *s = state();
     ensureOutlineMapper();
     d->outlineMapper->m_clip_rect = d->deviceRect.adjusted(-10, -10, 10, 10);
+
+    // This is the upp
     QRect bounds(-QT_RASTER_COORD_LIMIT, -QT_RASTER_COORD_LIMIT,
-                 2*QT_RASTER_COORD_LIMIT, 2*QT_RASTER_COORD_LIMIT);
+                 QT_RASTER_COORD_LIMIT*2 - 1, QT_RASTER_COORD_LIMIT * 2 - 1);
     d->outlineMapper->m_clip_rect = bounds.intersected(d->outlineMapper->m_clip_rect);
 
 
diff --git a/src/gui/painting/qpaintengineex.cpp b/src/gui/painting/qpaintengineex.cpp
index 3c07451..058f226 100644
--- a/src/gui/painting/qpaintengineex.cpp
+++ b/src/gui/painting/qpaintengineex.cpp
@@ -860,7 +860,7 @@ void QPaintEngineEx::drawPoints(const QPointF *points, int pointCount)
             for (int i=0; i<count; ++i) {
                 pts[++oset] = points[i].x();
                 pts[++oset] = points[i].y();
-                pts[++oset] = points[i].x() + 0.001;
+                pts[++oset] = points[i].x() + 1/63.;
                 pts[++oset] = points[i].y();
             }
             QVectorPath path(pts, count * 2, qpaintengineex_line_types_16, QVectorPath::LinesHint);
@@ -870,7 +870,7 @@ void QPaintEngineEx::drawPoints(const QPointF *points, int pointCount)
         }
     } else {
         for (int i=0; i<pointCount; ++i) {
-            qreal pts[] = { points[i].x(), points[i].y(), points[i].x() + 0.001, points[i].y() };
+            qreal pts[] = { points[i].x(), points[i].y(), points[i].x() + 1/63., points[i].y() };
             QVectorPath path(pts, 2, 0);
             stroke(path, pen);
         }
@@ -891,7 +891,7 @@ void QPaintEngineEx::drawPoints(const QPoint *points, int pointCount)
             for (int i=0; i<count; ++i) {
                 pts[++oset] = points[i].x();
                 pts[++oset] = points[i].y();
-                pts[++oset] = points[i].x() + 0.001;
+                pts[++oset] = points[i].x() + 1/63;
                 pts[++oset] = points[i].y();
             }
             QVectorPath path(pts, count * 2, qpaintengineex_line_types_16, QVectorPath::LinesHint);
@@ -901,7 +901,7 @@ void QPaintEngineEx::drawPoints(const QPoint *points, int pointCount)
         }
     } else {
         for (int i=0; i<pointCount; ++i) {
-            qreal pts[] = { points[i].x(), points[i].y(), points[i].x() + 0.001, points[i].y() };
+            qreal pts[] = { points[i].x(), points[i].y(), points[i].x() +1/63., points[i].y() };
             QVectorPath path(pts, 2, 0);
             stroke(path, pen);
         }
diff --git a/src/gui/painting/qpainterpath_p.h b/src/gui/painting/qpainterpath_p.h
index be01549..43f548f 100644
--- a/src/gui/painting/qpainterpath_p.h
+++ b/src/gui/painting/qpainterpath_p.h
@@ -97,6 +97,7 @@ public:
               flags(0)
         {
             int ptsPos = 0;
+            bool isLines = true;
             for (int i=0; i<path.size(); ++i) {
                 const QPainterPath::Element &e = path.at(i);
                 elements[i] = e.type;
@@ -104,6 +105,11 @@ public:
                 points[ptsPos++] = e.y;
                 if (e.type == QPainterPath::CurveToElement)
                     flags |= QVectorPath::CurvedShapeMask;
+
+                // This is to check if the path contains only alternating lineTo/moveTo,
+                // in which case we can set the LinesHint in the path. MoveTo is 0 and
+                // LineTo is 1 so the i%2 gets us what we want cheaply.
+                isLines = isLines && e.type == (QPainterPath::ElementType) (i%2);
             }
 
             if (fillRule == Qt::WindingFill)
@@ -111,8 +117,14 @@ public:
             else
                 flags |= QVectorPath::OddEvenFill;
 
-            if (!convex)
-                flags |= QVectorPath::NonConvexShapeMask;
+            if (isLines)
+                flags |= QVectorPath::LinesShapeMask;
+            else {
+                flags |= QVectorPath::AreaShapeMask;
+                if (!convex)
+                    flags |= QVectorPath::NonConvexShapeMask;
+            }
+
         }
         QVarLengthArray<QPainterPath::ElementType> elements;
         QVarLengthArray<qreal> points;
diff --git a/src/gui/styles/qcleanlooksstyle.cpp b/src/gui/styles/qcleanlooksstyle.cpp
index 49dd47d..0f39b23 100644
--- a/src/gui/styles/qcleanlooksstyle.cpp
+++ b/src/gui/styles/qcleanlooksstyle.cpp
@@ -2069,7 +2069,7 @@ void QCleanlooksStyle::drawControl(ControlElement element, const QStyleOption *o
                 // This is mainly to handle cases where someone sets the font on the window
                 // and then the combo inherits it and passes it onward. At that point the resolve mask
                 // is very, very weak. This makes it stonger.
-                font.setPointSizeF(menuItem->font.pointSizeF());
+                font.setPointSizeF(QFontInfo(menuItem->font).pointSizeF());
 
                 if (menuitem->menuItemType == QStyleOptionMenuItem::DefaultItem)
                     font.setBold(true);
diff --git a/src/gui/styles/qmacstyle_mac.mm b/src/gui/styles/qmacstyle_mac.mm
index ecb7453..97d69b2 100644
--- a/src/gui/styles/qmacstyle_mac.mm
+++ b/src/gui/styles/qmacstyle_mac.mm
@@ -3996,7 +3996,7 @@ void QMacStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter
                 // This is mainly to handle cases where someone sets the font on the window
                 // and then the combo inherits it and passes it onward. At that point the resolve mask
                 // is very, very weak. This makes it stonger.
-                myFont.setPointSizeF(mi->font.pointSizeF());
+                myFont.setPointSizeF(QFontInfo(mi->font).pointSizeF());
                 p->setFont(myFont);
                 p->drawText(xpos, yPos, contentRect.width() - xm - tabwidth + 1,
                             contentRect.height(), text_flags ^ Qt::AlignRight, s);
diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp
index d147ad7..4c57dff 100644
--- a/src/gui/text/qfont.cpp
+++ b/src/gui/text/qfont.cpp
@@ -1780,7 +1780,7 @@ Q_GLOBAL_STATIC(QFontSubst, globalFontSubst)
 static void initFontSubst()
 {
     // default substitutions
-    static const char *initTbl[] = {
+    static const char * const initTbl[] = {
 
 #if defined(Q_WS_X11)
         "arial",        "helvetica",
@@ -1812,7 +1812,6 @@ static void initFontSubst()
     }
 }
 
-
 /*!
     Returns the first family name to be used whenever \a familyName is
     specified. The lookup is case insensitive.
diff --git a/src/gui/widgets/qspinbox.cpp b/src/gui/widgets/qspinbox.cpp
index f00296c..726426d 100644
--- a/src/gui/widgets/qspinbox.cpp
+++ b/src/gui/widgets/qspinbox.cpp
@@ -99,6 +99,10 @@ public:
         Q_Q(QDoubleSpinBox);
         q->setInputMethodHints(Qt::ImhFormattedNumbersOnly);
     }
+
+    // When fiddling with the decimals property, we may lose precision in these properties.
+    double actualMin;
+    double actualMax;
 };
 
 
@@ -762,6 +766,7 @@ double QDoubleSpinBox::minimum() const
 void QDoubleSpinBox::setMinimum(double minimum)
 {
     Q_D(QDoubleSpinBox);
+    d->actualMin = minimum;
     const QVariant m(d->round(minimum));
     d->setRange(m, (d->variantCompare(d->maximum, m) > 0 ? d->maximum : m));
 }
@@ -792,6 +797,7 @@ double QDoubleSpinBox::maximum() const
 void QDoubleSpinBox::setMaximum(double maximum)
 {
     Q_D(QDoubleSpinBox);
+    d->actualMax = maximum;
     const QVariant m(d->round(maximum));
     d->setRange((d->variantCompare(d->minimum, m) < 0 ? d->minimum : m), m);
 }
@@ -813,6 +819,8 @@ void QDoubleSpinBox::setMaximum(double maximum)
 void QDoubleSpinBox::setRange(double minimum, double maximum)
 {
     Q_D(QDoubleSpinBox);
+    d->actualMin = minimum;
+    d->actualMax = maximum;
     d->setRange(QVariant(d->round(minimum)), QVariant(d->round(maximum)));
 }
 
@@ -843,7 +851,7 @@ void QDoubleSpinBox::setDecimals(int decimals)
     Q_D(QDoubleSpinBox);
     d->decimals = qBound(0, decimals, DBL_MAX_10_EXP + DBL_DIG);
 
-    setRange(minimum(), maximum()); // make sure values are rounded
+    setRange(d->actualMin, d->actualMax); // make sure values are rounded
     setValue(value());
 }
 
@@ -1051,8 +1059,10 @@ QVariant QSpinBoxPrivate::validateAndInterpret(QString &input, int &pos,
 
 QDoubleSpinBoxPrivate::QDoubleSpinBoxPrivate()
 {
-    minimum = QVariant(0.0);
-    maximum = QVariant(99.99);
+    actualMin = 0.0;
+    actualMax = 99.99;
+    minimum = QVariant(actualMin);
+    maximum = QVariant(actualMax);
     value = minimum;
     singleStep = QVariant(1.0);
     decimals = 2;
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 6b65886..2a33255 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -580,19 +580,19 @@ void QGL2PaintEngineExPrivate::transferMode(EngineMode newMode)
     }
 
     if (newMode == TextDrawingMode) {
-        glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, vertexCoordinateArray.data());
-        glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, textureCoordinateArray.data());
+        setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinateArray.data());
+        setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinateArray.data());
     }
 
     if (newMode == ImageDrawingMode) {
-        glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, staticVertexCoordinateArray);
-        glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, staticTextureCoordinateArray);
+        setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, staticVertexCoordinateArray);
+        setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, staticTextureCoordinateArray);
     }
 
     if (newMode == ImageArrayDrawingMode) {
-        glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, vertexCoordinateArray.data());
-        glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, textureCoordinateArray.data());
-        glVertexAttribPointer(QT_OPACITY_ATTR, 1, GL_FLOAT, GL_FALSE, 0, opacityArray.data());
+        setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinateArray.data());
+        setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinateArray.data());
+        setVertexAttributePointer(QT_OPACITY_ATTR, (GLfloat*)opacityArray.data());
     }
 
     // This needs to change when we implement high-quality anti-aliasing...
@@ -707,9 +707,9 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path)
             prepareForDraw(currentBrush.isOpaque());
 #ifdef QT_OPENGL_CACHE_AS_VBOS
             glBindBuffer(GL_ARRAY_BUFFER, cache->vbo);
-            glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, false, 0, 0);
+            setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, 0);
 #else
-            glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, false, 0, cache->vertices);
+            setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, cache->vertices);
 #endif
             glDrawArrays(cache->primitiveType, 0, cache->vertexCount);
 
@@ -829,7 +829,7 @@ void QGL2PaintEngineExPrivate::fillStencilWithVertexArray(const float *data,
         glStencilMask(GL_STENCIL_HIGH_BIT);
 #if 0
         glStencilOp(GL_KEEP, GL_KEEP, GL_INVERT); // Simply invert the stencil bit
-        glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, data);
+        setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, data);
         glDrawArrays(GL_TRIANGLE_STRIP, 0, count);
 #else
 
@@ -840,7 +840,7 @@ void QGL2PaintEngineExPrivate::fillStencilWithVertexArray(const float *data,
         } else {
             glStencilFunc(GL_ALWAYS, GL_STENCIL_HIGH_BIT, 0xff);
         }
-        glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, data);
+        setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, data);
         glDrawArrays(GL_TRIANGLE_STRIP, 0, count);
 #endif
     }
@@ -954,15 +954,8 @@ bool QGL2PaintEngineExPrivate::prepareForDraw(bool srcPixelsAreOpaque)
 
 void QGL2PaintEngineExPrivate::composite(const QGLRect& boundingRect)
 {
-    // Setup a vertex array for the bounding rect:
-    GLfloat rectVerts[] = {
-        boundingRect.left, boundingRect.top,
-        boundingRect.left, boundingRect.bottom,
-        boundingRect.right, boundingRect.bottom,
-        boundingRect.right, boundingRect.top
-    };
-
-    glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, rectVerts);
+    setCoords(staticVertexCoordinateArray, boundingRect);
+    setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, staticVertexCoordinateArray);
     glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 }
 
@@ -971,7 +964,7 @@ void QGL2PaintEngineExPrivate::drawVertexArrays(const float *data, int *stops, i
                                                 GLenum primitive)
 {
     // Now setup the pointer to the vertex array:
-    glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, data);
+    setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)data);
 
     int previousStop = 0;
     for (int i=0; i<stopCount; ++i) {
@@ -1070,7 +1063,7 @@ void QGL2PaintEngineExPrivate::stroke(const QVectorPath &path, const QPen &pen)
 
     if (opaque) {
         prepareForDraw(opaque);
-        glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, false, 0, stroker.vertices());
+        setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, stroker.vertices());
         glDrawArrays(GL_TRIANGLE_STRIP, 0, stroker.vertexCount() / 2);
 
 //         QBrush b(Qt::green);
@@ -1291,9 +1284,6 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly
     GLfloat dx = 1.0 / cache->width();
     GLfloat dy = 1.0 / cache->height();
 
-    QGLPoint *oldVertexCoordinateDataPtr = vertexCoordinateArray.data();
-    QGLPoint *oldTextureCoordinateDataPtr = textureCoordinateArray.data();
-
     vertexCoordinateArray.clear();
     textureCoordinateArray.clear();
 
@@ -1306,10 +1296,8 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly
         textureCoordinateArray.addRect(QRectF(c.x*dx, c.y*dy, c.w * dx, c.h * dy));
     }
 
-    if (vertexCoordinateArray.data() != oldVertexCoordinateDataPtr)
-        glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, vertexCoordinateArray.data());
-    if (textureCoordinateArray.data() != oldTextureCoordinateDataPtr)
-        glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, textureCoordinateArray.data());
+    setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinateArray.data());
+    setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinateArray.data());
 
     if (addOffset) {
         addOffset = false;
@@ -1641,6 +1629,8 @@ void QGL2PaintEngineEx::ensureActive()
         d->shaderManager->setDirty();
         d->ctx->d_func()->syncGlState();
         setState(state());
+        for (int i = 0; i < 3; ++i)
+            d->vertexAttribPointers[i] = (GLfloat*)-1; // Assume the pointers are clobbered
     }
 }
 
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
index 37bae6f..ce1b538 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
@@ -196,6 +196,9 @@ public:
     void drawPixmaps(const QDrawPixmaps::Data *drawingData, int dataCount, const QPixmap &pixmap, QDrawPixmaps::DrawingHints hints);
     void drawCachedGlyphs(const QPointF &p, QFontEngineGlyphCache::Type glyphType, const QTextItemInt &ti);
 
+    // Calls glVertexAttributePointer if the pointer has changed
+    inline void setVertexAttributePointer(unsigned int arrayIndex, const GLfloat *pointer);
+
     // draws whatever is in the vertex array:
     void drawVertexArrays(const float *data, int *stops, int stopCount, GLenum primitive);
     void drawVertexArrays(QGL2PEXVertexArray &vertexArray, GLenum primitive) {
@@ -230,6 +233,7 @@ public:
     void regenerateClip();
     void systemStateChanged();
 
+
     static QGLEngineShaderManager* shaderManagerForEngine(QGL2PaintEngineEx *engine) { return engine->d_func()->shaderManager; }
     static QGL2PaintEngineExPrivate *getData(QGL2PaintEngineEx *engine) { return engine->d_func(); }
     static void cleanupVectorPath(QPaintEngineEx *engine, void *data);
@@ -291,8 +295,24 @@ public:
 
     QSet<QVectorPath::CacheEntry *> pathCaches;
     QVector<GLuint> unusedVBOSToClean;
+
+    const GLfloat *vertexAttribPointers[3];
 };
 
+
+void QGL2PaintEngineExPrivate::setVertexAttributePointer(unsigned int arrayIndex, const GLfloat *pointer)
+{
+    Q_ASSERT(arrayIndex < 3);
+    if (pointer == vertexAttribPointers[arrayIndex])
+        return;
+
+    vertexAttribPointers[arrayIndex] = pointer;
+    if (arrayIndex == QT_OPACITY_ATTR)
+        glVertexAttribPointer(arrayIndex, 1, GL_FLOAT, GL_FALSE, 0, pointer);
+    else
+        glVertexAttribPointer(arrayIndex, 2, GL_FLOAT, GL_FALSE, 0, pointer);
+}
+
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
index 047876f..0720170 100644
--- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
+++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
@@ -81,7 +81,7 @@ void QGLTextureGlyphCache::createTextureData(int width, int height)
         data[i] = 0;
 
     if (m_type == QFontEngineGlyphCache::Raster_RGBMask)
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, &data[0]);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, &data[0]);
     else
         glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, width, height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, &data[0]);
 
@@ -127,11 +127,28 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height)
 
     glViewport(0, 0, oldWidth, oldHeight);
 
-    float vertexCoordinateArray[] = { -1, -1, 1, -1, 1, 1, -1, 1 };
-    float textureCoordinateArray[] = { 0, 0, 1, 0, 1, 1, 0, 1 };
-
-    glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, vertexCoordinateArray);
-    glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, textureCoordinateArray);
+    GLfloat* vertexCoordinateArray = pex->staticVertexCoordinateArray;
+    vertexCoordinateArray[0] = -1.0f;
+    vertexCoordinateArray[1] = -1.0f;
+    vertexCoordinateArray[2] =  1.0f;
+    vertexCoordinateArray[3] = -1.0f;
+    vertexCoordinateArray[4] =  1.0f;
+    vertexCoordinateArray[5] =  1.0f;
+    vertexCoordinateArray[6] = -1.0f;
+    vertexCoordinateArray[7] =  1.0f;
+
+    GLfloat* textureCoordinateArray = pex->staticTextureCoordinateArray;
+    textureCoordinateArray[0] = 0.0f;
+    textureCoordinateArray[1] = 0.0f;
+    textureCoordinateArray[2] = 1.0f;
+    textureCoordinateArray[3] = 0.0f;
+    textureCoordinateArray[4] = 1.0f;
+    textureCoordinateArray[5] = 1.0f;
+    textureCoordinateArray[6] = 0.0f;
+    textureCoordinateArray[7] = 1.0f;
+
+    pex->setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, vertexCoordinateArray);
+    pex->setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, textureCoordinateArray);
 
     pex->shaderManager->useBlitProgram();
     pex->shaderManager->blitProgram()->setUniformValue("imageTexture", QT_IMAGE_TEXTURE_UNIT);
@@ -179,8 +196,20 @@ void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph)
             for (int x = 0; x < maskWidth; ++x)
                 src[x] = -src[x]; // convert 0 and 1 into 0 and 255
         }
-     }
-
+    } else if (mask.format() == QImage::Format_RGB32) {
+        // Make the alpha component equal to the average of the RGB values.
+        // This is needed when drawing sub-pixel antialiased text on translucent targets.
+        for (int y = 0; y < maskHeight; ++y) {
+            quint32 *src = (quint32 *) mask.scanLine(y);
+            for (int x = 0; x < maskWidth; ++x) {
+                uchar r = src[x] >> 16;
+                uchar g = src[x] >> 8;
+                uchar b = src[x];
+                quint32 avg = (quint32(r) + quint32(g) + quint32(b) + 1) / 3; // "+1" for rounding.
+                src[x] = (src[x] & 0x00ffffff) | (avg << 24);
+            }
+        }
+    }
 
     glBindTexture(GL_TEXTURE_2D, m_texture);
     if (mask.format() == QImage::Format_RGB32) {
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index 547b33e..a262ded 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -1555,7 +1555,7 @@ QImage qt_gl_read_framebuffer(const QSize &size, bool alpha_format, bool include
 
 QImage qt_gl_read_texture(const QSize &size, bool alpha_format, bool include_alpha)
 {
-    QImage img(size, alpha_format ? QImage::Format_ARGB32 : QImage::Format_RGB32);
+    QImage img(size, alpha_format ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32);
     int w = size.width();
     int h = size.height();
 #if !defined(QT_OPENGL_ES_2) && !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL)
diff --git a/src/opengl/qpaintengine_opengl.cpp b/src/opengl/qpaintengine_opengl.cpp
index cc58c09..c823187 100644
--- a/src/opengl/qpaintengine_opengl.cpp
+++ b/src/opengl/qpaintengine_opengl.cpp
@@ -4931,7 +4931,8 @@ void QOpenGLPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte
 
     glEnableClientState(GL_VERTEX_ARRAY);
     glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-    bool antialias = !(ti.fontEngine->fontDef.styleStrategy & QFont::NoAntialias);
+    bool antialias = !(ti.fontEngine->fontDef.styleStrategy & QFont::NoAntialias)
+                   && (d->matrix.type() > QTransform::TxTranslate);
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, antialias ? GL_LINEAR : GL_NEAREST);
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, antialias ? GL_LINEAR : GL_NEAREST);
 
diff --git a/tests/auto/qdoublespinbox/tst_qdoublespinbox.cpp b/tests/auto/qdoublespinbox/tst_qdoublespinbox.cpp
index e2cad08..258d8dc 100644
--- a/tests/auto/qdoublespinbox/tst_qdoublespinbox.cpp
+++ b/tests/auto/qdoublespinbox/tst_qdoublespinbox.cpp
@@ -149,6 +149,7 @@ private slots:
 
     void taskQTBUG_5008_textFromValueAndValidate();
     void taskQTBUG_6670_selectAllWithPrefix();
+    void taskQTBUG_6496_fiddlingWithPrecision();
 
 public slots:
     void valueChangedHelper(const QString &);
@@ -1096,5 +1097,17 @@ void tst_QDoubleSpinBox::taskQTBUG_6670_selectAllWithPrefix()
     QCOMPARE(spin.value(), 12.);
 }
 
+void tst_QDoubleSpinBox::taskQTBUG_6496_fiddlingWithPrecision()
+{
+    QDoubleSpinBox dsb;
+    dsb.setRange(0, 0.991);
+    dsb.setDecimals(1);
+    QCOMPARE(dsb.maximum(), 1.0);
+    dsb.setDecimals(2);
+    QCOMPARE(dsb.maximum(), 0.99);
+    dsb.setDecimals(3);
+    QCOMPARE(dsb.maximum(), 0.991);
+}
+
 QTEST_MAIN(tst_QDoubleSpinBox)
 #include "tst_qdoublespinbox.moc"
diff --git a/tests/auto/qfiledialog2/tst_qfiledialog2.cpp b/tests/auto/qfiledialog2/tst_qfiledialog2.cpp
index 4c52f57..f2e1dbd 100644
--- a/tests/auto/qfiledialog2/tst_qfiledialog2.cpp
+++ b/tests/auto/qfiledialog2/tst_qfiledialog2.cpp
@@ -116,6 +116,7 @@ private slots:
 #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
     void task226366_lowerCaseHardDriveWindows();
 #endif
+    void completionOnLevelAfterRoot();
     void task233037_selectingDirectory();
     void task235069_hideOnEscape();
     void task236402_dontWatchDeletedDir();
@@ -202,7 +203,7 @@ void tst_QFiledialog::heapCorruption()
     qDeleteAll(dialogs);
 }
 
-struct FriendlyQFileDialog : public QFileDialog
+struct FriendlyQFileDialog : public QNonNativeFileDialog
 {
     friend class tst_QFileDialog;
     Q_DECLARE_PRIVATE(QFileDialog)
@@ -552,6 +553,45 @@ void tst_QFiledialog::task226366_lowerCaseHardDriveWindows()
 }
 #endif
 
+void tst_QFiledialog::completionOnLevelAfterRoot()
+{
+    QNonNativeFileDialog fd;
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
+    fd.setDirectory("C:");
+    QDir current = fd.directory();
+    current.mkdir("completionOnLevelAfterRootTest");
+#else
+    fd.setFilter(QDir::Hidden | QDir::AllDirs | QDir::Files | QDir::System);
+    fd.setDirectory("/");
+    QDir etc("/etc");
+    if (!etc.exists())
+        QSKIP("This test requires to have an etc directory under /", SkipAll);
+#endif
+    fd.show();
+    QLineEdit *edit = qFindChild<QLineEdit*>(&fd, "fileNameEdit");
+    QTest::qWait(2000);
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
+    //I love testlib :D
+    QTest::keyClick(edit, Qt::Key_C);
+    QTest::keyClick(edit, Qt::Key_O);
+    QTest::keyClick(edit, Qt::Key_M);
+    QTest::keyClick(edit, Qt::Key_P);
+    QTest::keyClick(edit, Qt::Key_L);
+#else
+    QTest::keyClick(edit, Qt::Key_E);
+    QTest::keyClick(edit, Qt::Key_T);
+#endif
+    QTest::qWait(200);
+    QTest::keyClick(edit->completer()->popup(), Qt::Key_Down);
+    QTest::qWait(200);
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
+    QCOMPARE(edit->text(), QString("completionOnLevelAfterRootTest"));
+    current.rmdir("completionOnLevelAfterRootTest");
+#else
+    QCOMPARE(edit->text(), QString("etc"));
+#endif
+}
+
 void tst_QFiledialog::task233037_selectingDirectory()
 {
     QDir current = QDir::currentPath();
diff --git a/tests/auto/qtreeview/tst_qtreeview.cpp b/tests/auto/qtreeview/tst_qtreeview.cpp
index d269cc3..fd4815e 100644
--- a/tests/auto/qtreeview/tst_qtreeview.cpp
+++ b/tests/auto/qtreeview/tst_qtreeview.cpp
@@ -236,6 +236,7 @@ private slots:
     void task248022_changeSelection();
     void task245654_changeModelAndExpandAll();
     void doubleClickedWithSpans();
+    void taskQTBUG_6450_selectAllWith1stColumnHidden();
 };
 
 class QtTestModel: public QAbstractItemModel
@@ -3678,5 +3679,26 @@ void tst_QTreeView::doubleClickedWithSpans()
     QTRY_COMPARE(spy.count(), 2);
 }
 
+void tst_QTreeView::taskQTBUG_6450_selectAllWith1stColumnHidden()
+{
+    QTreeWidget tree;
+    tree.setSelectionMode(QAbstractItemView::MultiSelection);
+    tree.setColumnCount(2);
+    QList<QTreeWidgetItem *> items;
+    const int nrRows = 10;
+    for (int i = 0; i < nrRows; ++i) {
+        items.append(new QTreeWidgetItem((QTreeWidget*)0, QStringList(QString("item: %1").arg(i))));
+        items.last()->setText(1, QString("is an item"));
+    }
+    tree.insertTopLevelItems(0, items);
+
+    tree.hideColumn(0);
+    tree.selectAll();
+
+    QVERIFY(tree.selectionModel()->hasSelection());
+    for (int i = 0; i < nrRows; ++i)
+        QVERIFY(tree.selectionModel()->isRowSelected(i, QModelIndex()));
+}
+
 QTEST_MAIN(tst_QTreeView)
 #include "tst_qtreeview.moc"
diff --git a/tests/benchmarks/qtext/main.cpp b/tests/benchmarks/qtext/main.cpp
index 3c973b6..4bd2bee 100644
--- a/tests/benchmarks/qtext/main.cpp
+++ b/tests/benchmarks/qtext/main.cpp
@@ -41,19 +41,36 @@
 
 #include <QDebug>
 #include <QTextDocument>
+#include <QTextDocumentWriter>
 #include <QTextLayout>
+#include <QTextCursor>
 #include <QFile>
+#include <QBuffer>
 #include <qtest.h>
 
+Q_DECLARE_METATYPE(QTextDocument*)
+
 class tst_QText: public QObject
 {
     Q_OBJECT
+public:
+    tst_QText() {
+        m_lorem = QString::fromLatin1("Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.");
+    }
+
 private slots:
     void loadHtml_data();
     void loadHtml();
 
     void shaping_data();
     void shaping();
+
+    void odfWriting_empty();
+    void odfWriting_text();
+    void odfWriting_images();
+
+private:
+    QString m_lorem;
 };
 
 void tst_QText::loadHtml_data()
@@ -63,7 +80,7 @@ void tst_QText::loadHtml_data()
     QTest::newRow("simple") << QString::fromLatin1("<html><b>Foo</b></html>");
     QTest::newRow("simple2") << QString::fromLatin1("<b>Foo</b>");
 
-    QString parag = QString::fromLatin1("<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. <b>Duis <i>autem</i> vel eum </b> iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.</p>");
+    QString parag = QString::fromLatin1("<p>%1</p>").arg(m_lorem);
     QString header = QString::fromLatin1("<html><head><title>test</title></head><body>");
     QTest::newRow("long") << QString::fromLatin1("<html><head><title>test</title></head><body>") + parag + parag + parag
         + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag
@@ -87,7 +104,7 @@ void tst_QText::shaping_data()
 {
     QTest::addColumn<QString>("parag");
     QTest::newRow("empty") << QString();
-    QTest::newRow("lorem") << QString::fromLatin1("Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.");
+    QTest::newRow("lorem") << m_lorem;
     QTest::newRow("short") << QString::fromLatin1("Lorem ipsum dolor sit amet");
 
     QFile file(QString::fromLatin1(SRCDIR) + QLatin1String("/bidi.txt"));
@@ -120,6 +137,64 @@ void tst_QText::shaping()
     }
 }
 
+void tst_QText::odfWriting_empty()
+{
+    QVERIFY(QTextDocumentWriter::supportedDocumentFormats().contains("ODF")); // odf compiled in
+    QTextDocument *doc = new QTextDocument();
+    // write it
+    QBENCHMARK {
+        QBuffer buffer;
+        buffer.open(QIODevice::WriteOnly);
+        QTextDocumentWriter writer(&buffer, "ODF");
+        writer.write(doc);
+    }
+    delete doc;
+}
+
+void tst_QText::odfWriting_text()
+{
+    QTextDocument *doc = new QTextDocument();
+    QTextCursor cursor(doc);
+    QTextBlockFormat bf;
+    bf.setIndent(2);
+    cursor.insertBlock(bf);
+    cursor.insertText(m_lorem);
+    bf.setTopMargin(10);
+    cursor.insertBlock(bf);
+    cursor.insertText(m_lorem);
+    bf.setRightMargin(30);
+    cursor.insertBlock(bf);
+    cursor.insertText(m_lorem);
+
+    // write it
+    QBENCHMARK {
+        QBuffer buffer;
+        buffer.open(QIODevice::WriteOnly);
+        QTextDocumentWriter writer(&buffer, "ODF");
+        writer.write(doc);
+    }
+    delete doc;
+}
+
+void tst_QText::odfWriting_images()
+{
+    QTextDocument *doc = new QTextDocument();
+    QTextCursor cursor(doc);
+    cursor.insertText(m_lorem);
+    QImage image(400, 200, QImage::Format_ARGB32_Premultiplied);
+    cursor.insertImage(image);
+    cursor.insertText(m_lorem);
+
+    // write it
+    QBENCHMARK {
+        QBuffer buffer;
+        buffer.open(QIODevice::WriteOnly);
+        QTextDocumentWriter writer(&buffer, "ODF");
+        writer.write(doc);
+    }
+    delete doc;
+}
+
 QTEST_MAIN(tst_QText)
 
 #include "main.moc"