1Qt 4.6.3 is a bug-fix release. It maintains both forward and backward
2compatibility (source and binary) with Qt 4.6.0.  For more details,
3refer to the online documentation included in this distribution. The
4documentation is also available online:
5
6  http://qt.nokia.com/doc/4.6
7
8The Qt version 4.6 series is binary compatible with the 4.5.x series.
9Applications compiled for 4.5 will continue to run with 4.6.
10
11Some of the changes listed in this file include issue tracking numbers
12corresponding to tasks in the Qt Bug Tracker, the (now obsolete) Task
13Tracker, or the Merge Request queue of the public source repository.
14
15Qt Bug Tracker: http://bugreports.qt.nokia.com
16Task Tracker:   http://qt.nokia.com/developer/task-tracker
17Merge Request:  http://qt.gitorious.org
18
19****************************************************************************
20*                           General                                        *
21****************************************************************************
22
23Examples and Demos
24------------------
25
26 - Added Spectrum analyzer demo application.
27 - Added exit softkey to Wiggly example.
28 - Added close button to Anomaly demo.
29 - [QTBUG-10635]: Fixed Anomaly demo controlstrip icon placement for very
30   small screens.
31
32
33****************************************************************************
34*                          Library                                         *
35****************************************************************************
36
37QtCore
38------
39
40 - QStateMachine
41    * [QTBUG-8842] Ensure history configuration is cleared when a state
42      machine is restarted.
43
44 - QXmlStreamReader
45    * [QTBUG-9196] Fixed crash when parsing.
46
47QtGui
48-----
49
50 - QComboBox
51    * [QTBUG-10403] Fixed QComboBox ignoring the item data background role
52      for some styles.
53
54 - QCommonStyle
55    * [QTBUG-7137] Fixed a bug that led to missing text pixels in QTabBar when
56      using small font sizes.
57
58 - QCUPSSupport
59    * [QTBUG-10512] Fixed a potential crash with misconfigured CUPS printers.
60    * [QTBUG-6419] Make QCUPSSupport::printerHasPPD() release temporary file
61      handles.
62
63 - qDrawPixmaps()
64    * [QTBUG-8455] Fixed qDrawPixmaps() to draw on integer coordinates under
65      Mac OS X.
66
67 - QFontEngine
68    * [QTBUG-3976] Fixed a leak for QFont objects used in threads.
69
70 - QGifHandler
71    * [QTBUG-7037] Fixed QGifHandler::loopCount().
72    * [QTBUG-6696] Cache the sizes of images in an animated GIF.
73
74 - QGraphicsEffect
75    * [QTBUG-5358] Fixed warnings and crash when painting graphics effects
76      outside scene.
77
78 - QGraphicsItem
79    * [QTBUG-9391] Avoid a useless repaint when setting the cache mode to
80      DeviceCoordinateMode while already using that mode.
81    * [QTBUG-8475] Fixed crash and loss of focus when deleting a child of a
82      focus scope.
83
84 - QGraphicsProxyWidget
85    * [QTBUG-5349] Fixed tooltips not being shown for QGraphicsProxyWidget.
86    * [QTBUG-2883] Fixed tooltips appearing at wrong location.
87    * [QTBUG-7296] Fixed painting artifacts on a scaled proxy when the view
88      is scrolled.
89
90 - QGraphicsScene
91    * [QTBUG-7863] Fixed incorrect blending when using
92      QGraphicsItem::DeviceCoordinateCache and when the item is semi-
93      transparent. If the item is transformed, the cache is now always fully
94      repainted to avoid artifacts.
95
96 - QGraphicsView
97    * Item tooltips are not clipped by the view anymore.
98
99 - QImageReader
100    * [QTBUG-7980] Fixed QImageReader::setAutoDetectImageFormat() to work with
101      plugins.
102
103 - QPainter
104    * [QTBUG-8140] Speed up custom bitmap brushes under X11 without Xrender
105      support.
106    * [QTBUG-8032] Fixed drawing pixmaps onto bitmaps on X11 without Xrender
107      support.
108    * [QTBUG-10421] Fixed WebKit-specific justification bug for text containing
109      more than one script.
110
111 - QPDFBaseEngine
112    * [QTBUG-8451] Fixed line and point drawing in the PS and PDF generators.
113
114 - QPixmap
115    * [QTBUG-8606] Fixed QPixmap::load() to not modify referenced copies.
116
117 - QPSPrintEngine
118    * [QTBUG-10121] Fixed incorrect version setting for EPS files.
119    * [QTBUG-10140] Fixed generation of the %%BoundingBox operator to output
120      integer values instead of floating point values.
121
122 - QRasterPaintEngine
123    * [QTBUG-9036] Fixed ClearType text rendering on translucent surfaces under
124      Windows.
125
126 - QRegion
127    * [QTBUG-7699] Prevented crash on large x-coordinates.
128
129 - QTextDocument
130    * [QTBUG-10301] Fixed a leak in QTextDocument::print().
131
132 - QTextEdit
133    * [QTBUG-9599] Fixed crash when copying the current text cursor as a result
134      of deleting a character.
135
136 - QTextEngine
137    * [QTBUG-9374] Fixed possible crash in QTextEngine::boundingBox() when using
138      multiscripted text.
139
140 - QTextLayout
141    * [QTBUG-9074] Fixed performance regression that was introduced in Qt 4.6.0.
142
143 - QTransform
144    * [QTBUG-8557] Fixed bug in QTransform::type() potentially occuring
145      after using operator/ or operator* or their overloads.
146
147 - QTriangulatingStroker
148    * [QTBUG-9548] Fixed possible data corruption when certain paths were
149      triangulated.
150
151 - QWin32PrintEngine
152    * [QTBUG-9938] Fixed a crash on Windows 7 systems with invalid PrinterPorts
153      registry entries.
154
155 - Improved scrolling horizontally with a mouse wheel over sliders.
156 - [QTBUG-7451] Gestures respect panels on QGraphicsView.
157
158QtOpenGL
159--------
160
161 - QOpenGLPaintEngine
162    * [QTBUG-10529] Fixed an issue where bound pixmaps were not released
163      correctly in the GL 1 engine.
164
165 - QGL2PaintEngineEx
166    * [QTBUG-8681] Fixed an application exit crash that could occur in the GL2
167      engine under X11.
168
169 - QGLContext
170    * [QTBUG-5732] Fixed a GLX warning that occured with some Intel chipsets
171      under X11.
172
173 - QGLPixelBuffer
174    * [QTBUG-8047] Fixed usage of QGLPixelBuffer with share widgets on other
175      X11 screens.
176
177 - QGLWidget
178    * [QTBUG-7545] Fixed QGLWidget::grabFrameBuffer() to honor the 'withAlpha' flag.
179    * [QTBUG-8054] Fixed drawing QPixmaps onto QGLWidgets on different X11 screens.
180    * [QTBUG-7865] Fixed bug where GL widgets were not fully updated on
181      Windows Vista/7 with Aero disabled.
182    * [QTBUG-8753] Worked around driver bug causing clipping errors on the N900.
183    * [QTBUG-10510] Workaround ATI driver bug when using QGraphicsEffect with GL.
184
185QtScript
186--------
187
188 - [QTBUG-7066] Fixed regression introduced in 4.6.0 that made it impossible to
189   change the prototype of the global object.
190 - [QTBUG-8366] Fixed regression introduced in 4.6.0 that caused the instanceof
191   operator to throw an error when the right-hand-side is generated by
192   QScriptEngine::newQMetaObject().
193 - [QTBUG-8400] Fixed memory leak when lazily binding QScriptValue to an engine.
194 - [QTBUG-9775] Fixed regression introduced in 4.6.0 that caused the qsTr()
195   function not to resolve the translation context correctly when invoked in
196   the global scope.
197 - [QTBUG-8364] Fixed regression introduced in QScriptclass in 4.6.0 that could
198   cause the Callable extension to crash.
199 - [QTBUG-6437] Fixed regression introduced in QScriptEngine in 4.6.0 that made
200   installTranslatorFunctions() not work with custom global object.
201
202QtXml
203-----
204
205 - [QTBUG-8398] QDom: prevent infinite loop when cloning a DTD.
206
207QtXmlPatterns
208-------------
209  - [QTBUG-8920] fixed crash with anonymous types in XsdSchemaChecker.
210  - [QTBUG-8394] include/import/redefine schemas only once.
211  - QXmlSchema: fix crash with referencing elements.
212
213****************************************************************************
214*                      Platform Specific Changes                           *
215****************************************************************************
216
217Qt for Linux/X11
218----------------
219
220 - [MR 458] Improved handling of Shift-Tab with VNC on X11.
221 - [QTBUG-7063] Changed key bindings (XF86XK_MyComputer, Qt::Key_Launch0,
222   Key_Calculator) on X11 back to how it was in Qt 4.5 before MR 1742
223   accidentally changed it.
224 - [QTBUG-8666] Fixed a crash when using QIcon::fromTheme with icons declared
225   static.
226 - QGtkStyle
227   * [QTBUG-9240] Fixed a potensial crash in QGtkStyle when the gtk
228     theme engine is not unavaliable.
229   * [QTBUG-8537] Fixed a Glib-GObject-WARNING on application startup with
230     certain versions of GTK+.
231   * [QTBUG-8226] Fixed an atk_object_set_name assertion warning with certain
232     versions of GTK+.
233
234Qt for Windows
235--------------
236
237 - [QTBUG-6007] On Windows we query if there is a touch screen and do not try
238   to enable gestures otherwise.
239 - QLocalSocket
240    * [QTBUG-7815] Pipe handle leak fixed, when closing a QLocalSocket that
241      still has unwritten data.
242    * [QTBUG-9681] Fixed closing state for local sockets with unwritten data.
243    * [QTBUG-8418] Detection of Windows Mobile 6.5 fixed.
244
245 - [QTBUG-7662] Fixed an issue with clipped icon text.
246 - [QTBUG-7663] QFileIconProvider now show overlays when fetching native
247   filesystem icons.
248 - [QTBUG-8324] Fixed a potential crash when fetching native icons.
249
250Qt for Windows CE
251-----------------
252
253- Core changes
254   * [QTBUG-8754] Fixed menu handling on Windows mobile.
255   * [QTBUG-7943] Fixed a crash when receiving a certain type of
256     WM_SETTINGSCHANGE message.
257
258- QWindowsMobileStyle
259   * [QTBUG-8419] Huge performance penalty for QTabWidget fixed for
260     Windows Mobile 6.5.
261   * [QTBUG-8757] QTabBar scroll button size has been fixed.
262
263Qt for Mac
264-----------------
265
266 - [QTBUG-8461] Fixed incorrect text rendering with document mode tabs.
267
268
269Qt for Symbian
270--------------
271
272 - Multimedia
273   * [QT-567] Implementation of QtMultimedia QAudio* APIs.
274   * [QTBUG-8919] Modified Phonon MMF backend to support video playback on
275     platforms which use graphics surfaces (i.e. platforms using the
276     New Graphics Architecture a.k.a. ScreenPlay).
277
278 - mkspecs
279   * Changed pkg_prerules to not use default_deployment for vendor ID.
280   * Added forwarding headers for qplatformdefs.h in Symbian mkspecs.
281   * Added some missing IBY export paths to platform_path.prf.
282   * Fixed libstdcpp.dll version autodetection for Symbian.
283   * [QTBUG-7836]: Removed unnecessary dependency to moc.exe from Symbian
284     builds.
285   * [QT-1171]: Fixed libstdcpp.dll version autodetection.
286   * [QTBUG-8513]: Fixed misc FLM issues.
287   * [QT-2909]: Support for adding conditional MMP_RULES.
288   * [QT-3253]: Export .flm files always if they are different.
289   * [QTBUG-9279]: Made it possible to define more than one language using
290     pkg_prerules.
291   * [QTBUG-6795]: Made sure target path exists in qmake_extra_pre_targetdep.flm.
292   * [QTBUG-7883]: Only use unix-like tools when not building for Symbian
293     in Windows.
294
295 - configure
296   * [QTBUG-7942]: Fix QT_BUILD_KEY for Symbian in Windows builds.
297
298     IMPORTANT NOTE: The build key change causes all Qt for Symbian plugins
299                     made with Qt 4.6.2 or earlier version incompatible with
300                     Qt 4.6.3 and later.
301
302   * [QTBUG-9065]: Support for -qtlibinfix parameter in Symbian.
303
304 - qmake
305   * Changed canonical paths to absolute paths in symmake.
306   * Basic deployment support for ROM in Symbian.
307   * Add '.' dir as the first include directory in Symbian.
308   * [QT-3017]: Support for conditional subdirs.
309   * [QT-3083]: Expanded support for RSS_RULES.
310   * [QTBUG-8685]: RVCT 4 support to Symbian builds.
311   * [QT-3147]: Changed Symbian pkg files to deploy from under epoc32.
312   * [QT-2985]: Fix extensions section in bld.inf when CONFIG contains
313     symbian_test.
314
315 - S60installs
316   * Export qtdemoapps.iby to proper location.
317   * [QT-3163]: Removed QtDeclarative.dll deployment from qt.iby.
318
319 - QProcess
320   * [QTBUG-7735]: Fixed crash at application exit when QProcess was used in
321     Symbian.
322   * [QTBUG-8906]: Removed extra space from the command line passed to
323     QProcess in Symbian.
324
325 - QtGui
326   * QUnixPrintWidget is no longer declared in Symbian.
327   * [QTBUG-10207]: Fixed long menu item texts causing crash.
328   * [QTBUG-9910] Fixed incorrect dialog position when native AVKON combined
329     status-and-control pane is in use.
330   * [QTBUG-4875] Made QMessageBox match size with native Symbian messageBox.
331   * [QTBUG-5539] Fixed QMessageBox to stretch to screen width with very small
332     content.
333   * [QTBUG-7828] Fixed Virtual keyboard closing issue with Sym^3.
334   * [QTBUG-9480] Use focus widget palette colors to show T9 suggested or
335     autocompletion words in QCoeFepInputContext.
336   * [QTBUG-10006] Changed default supported text modes to all, instead of just
337     lower and upper cases in QCoeFepInputContext.
338   * [QT-3277] Support text selection in QCoeFepInputContext for Sym^3.
339   * [QT-3008] Fixed crash in QGraphicsScenePrivate::setFocusItemHelper.
340
341 - QS60Style
342    * [QTBUG-10697] Support native-like selection in item views.
343    * [QTBUG-10454] Made styled sliders match in size to native sliders.
344    * [QTBUG-10073] Fixed QMenu with a lot of menu items.
345    * [QTBUG-3102] Fixed QTabWidget icon size issue.
346    * [QTBUG-5001] Show combobox list as a popup instead of dropdown list.
347    * [QTBUG-7258] Fixed calculations of PM_FocusFrameVMargin and
348      PM_FocusFrameHMargin pixel metrics.
349    * [QTBUG-7996] Fixed squeezed scrollbar handle and groove ends.
350    * [QTBUG-8193] Fixed drag-n-drop drop area drawing issue.
351    * [QTBUG-8194] Removed scrollbar context menu support.
352    * [QTBUG-8704] Fixed palette issues when drawing highlighted text.
353    * [QTBUG-9212] Fixed itemview multiselection issues.
354    * [QTBUG-9321] Fixed very large spinboxes drawing issues.
355    * [QTBUG-9837] Fixed text cutting issues with narrow QComboBoxes.
356    * [QTBUG-9844] Fixed QTreeView branch drawing issues in right to left
357      UI layout.
358    * [QTBUG-9927] Fixed transparent list higlight to show up correctly for
359      S60 3rd edition FP1 devices.
360    * [QTBUG-10064] Removed focus frame drawing for context menus and popups.
361    * [QTBUG-10487] Fixed QToolButton to be drawn pressed when context menu
362      for that button is open.
363    * [QTBUG-10549] Fixed style to honor stylesheet when drawing focus frame
364      for QPushButtons.
365    * [QT-3295] Made QMenu to look more native-like.
366    * [QT-3185] Fixed border frames to be drawn transparent for Sym^3 devices.
367    * [QT-3148] Draw application background correctly when animated wallpaper
368      is used in Sym^3 device.
369    * [QT-3137] Launch virtual keyboard with single tap.
370    * [QT-3104] Re-locate QTabWidget's scrollbuttons to either side of widget.
371    * [QT-2179] Fixed QPushButton with text and QPushButton with standard icon
372      to be of same size.
373
374 - Examples & demos:
375   * Enabled more examples by default in Symbian builds.
376
377 - Documentation
378   * [QTBUG-9277]: Clarified pkg_prerules usage documentation.
379
380 - Plugins:
381   * Fixed sqlite3_v9.2.zip to export sqlite3.iby to correct location.
382
383 - General
384   * [QT-3055]: Fixed filename cases to support building Qt for Symbian in
385     Linux.
386
387
388****************************************************************************
389*                          Tools                                           *
390****************************************************************************
391
392 - qmake
393    * Fixed qmake.pro for using with mingw
394
395