| 1 | Qt 4.6.1 is a bug-fix release. It maintains both forward and backward
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| 2 | compatibility (source and binary) with Qt 4.6.0. For more details,
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| 3 | refer to the online documentation included in this distribution. The
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| 4 | documentation is also available online:
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| 5 |
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| 6 | http://qt.nokia.com/doc/4.6
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| 7 |
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| 8 | The Qt version 4.6 series is binary compatible with the 4.5.x series.
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| 9 | Applications compiled for 4.5 will continue to run with 4.6.
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| 10 |
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| 11 | Some of the changes listed in this file include issue tracking numbers
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| 12 | corresponding to tasks in the Qt Bug Tracker, the (now obsolete) Task
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| 13 | Tracker, or the Merge Request queue of the public source repository.
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| 14 |
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| 15 | Qt Bug Tracker: http://bugreports.qt.nokia.com
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| 16 | Task Tracker: http://qt.nokia.com/developer/task-tracker
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| 17 | Merge Request: http://qt.gitorious.org
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| 18 |
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| 19 | ****************************************************************************
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| 20 | * General *
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| 21 | ****************************************************************************
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| 22 |
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| 23 | Optimizations
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| 24 | -------------
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| 25 |
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| 26 | - Optimized empty QUrl creation
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| 27 | * [QTBUG-4030] Empty QUrls no longer allocate memory now
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| 28 |
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| 29 | * See list of Important Behavior Changes below
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| 30 |
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| 31 |
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| 32 | ****************************************************************************
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| 33 | * Library *
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| 34 | ****************************************************************************
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| 35 |
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| 36 | QtCore
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| 37 | ------
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| 38 |
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| 39 | - QFile
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| 40 | * Improve performance of getting the canonical filename on Linux
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| 41 | and Symbian by using realpath() system call.
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| 42 | * Avoid stat() when opening a file.
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| 43 |
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| 44 | - QLibrary and QPluginLoader
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| 45 | * Do not look at the Qt patch-level version embedded in plugins'
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| 46 | buildkeys when trying to determine if the plugin is compatible
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| 47 |
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| 48 | - QProcessEnvironment
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| 49 | * [QTBUG-6701] Ensure we don't crash in operator==
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| 50 |
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| 51 | - QTextEncoder
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| 52 | * [merge request 399] QTextEncoder::fromUnicode as QT3 support
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| 53 | member
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| 54 |
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| 55 | - QXmlStreamreader
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| 56 | * [merge request 1926] Fix parsing of DTDs that contain empty markup
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| 57 | declarations.
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| 58 |
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| 59 | QtGui
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| 60 | -----
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| 61 |
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| 62 | - QApplication
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| 63 | * [QTBUG-6654] Fix crashes when deleting QWidgets in touch event
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| 64 | handlers.
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| 65 | - QGraphicsEffect
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| 66 | * [QTBUG-5918] Fixed redraw bugs when using graphics effects on
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| 67 | items while animating them by transformations.
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| 68 | - QGraphicsItem
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| 69 | * [QTBUG-5917] Fixed memory leaks when removing a QGraphicsEffect from
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| 70 | a QGraphicsItem or QWidget with setGraphicsEffect(0).
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| 71 | * [QTBUG-5859] Fixes incorrect rounding of the exposed rectangle of the
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| 72 | QGraphicsItem causing painting issues when scaling the QGraphicsView.
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| 73 | * [QTBUG-5071] Fixes transformation problems when grouping/ungrouping
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| 74 | the item with a QGraphicsItemGroup.
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| 75 | - QGraphicsObject
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| 76 | * 'id' property was removed. Use the 'objectName' property instead.
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| 77 | - QGraphicsScene
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| 78 | * [QTBUG-6654] Fix crashes when deleting QGraphicsItems in touch
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| 79 | event handlers.
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| 80 | - QGraphicsView
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| 81 | * [QTBUG-6935] When using CacheBackground, the background is now
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| 82 | correctly repainted after the QGraphicsView is shown after being
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| 83 | hidden.
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| 84 | * [QTBUG-6835] Mouse tracking is now automatically enabled when using
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| 85 | AnchorUnderMouse for view transformation.
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| 86 | * [QTBUG-6958] Fix speed regression in _q_polishItems()
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| 87 | * [QTBUG-6544] Fix a crash on the focus chain when removing items from
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| 88 | the scene.
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| 89 | * Fix a crash in KDE/Plasma with QGraphicsView with topLevels.
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| 90 | - QGraphicsWidget
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| 91 | * [QTBUG-6272] Only call updateFont if the font has changed.
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| 92 | - QPainter
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| 93 | * [QTBUG-5939] Fixed incorrect redirection matrix that was causing
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| 94 | wrong transformation for QGraphicsProxyWidgets.
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| 95 | * [QTBUG-6684] Added optimizations of 32-bit blend functions
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| 96 | for ARM platforms with NEON support.
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| 97 | - QPixmap
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| 98 | * load() and loadFromData() can now support compressed GL textures
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| 99 | in the DDS, ETC1, PVRTC2, and PVRTC4 formats if the OpenGL graphics
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| 100 | system is active and the appropriate extensions are present in the
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| 101 | GL implementation.
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| 102 | * [QTBUG-6840] Fixed load() to not modify referenced copies.
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| 103 | * [QTBUG-5840] Fixed a crash in fromImage() when passing in a null image.
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| 104 | * [QTBUG-6116] Fixed memory leak where a global object was not destroyed
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| 105 | at program exit.
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| 106 | - QPixmapCache
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| 107 | * Fixed a small leak when using the new QPixmapCache::Key based API.
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| 108 | - QPrinter
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| 109 | * [QTBUG-3412] QGraphicsProxyWidgets are now rendered correctly when
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| 110 | printing a QGraphicsScene to PDF format.
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| 111 | - QRasterPixmapData
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| 112 | * [QTBUG-6985] Fixed metric() to return the correct height in mm.
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| 113 | - QTextDocument
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| 114 | * [QTBUG-5397] Fixed printing of QTextDocuments not including custom
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