| 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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| 115 | text objects.
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| 116 | * [QTBUG-6051] Fixed an endless loop when printing a QTextDocument.
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| 117 |
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| 118 | QtDBus
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| 119 | ------
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| 120 |
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| 121 | - QDBusConnection
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| 122 | * [QTBUG-5979] Fixed the signal-delivery mechanism to update
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| 123 | correctly when the sender name changes/appears on the bus.
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| 124 | * [QTBUG-7041] Fixed marshalling of booleans in release mode.
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| 125 | * [QT-2307] Fixed calls with the QDBus::BlockWithGui mode.
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| 126 | - QDBusInterface
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| 127 | * Made it continue working even when the remote object
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| 128 | introspection fails.
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| 129 | - QDBusInterface and qdbuscpp2xml
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| 130 | * [QTBUG-5563] Fixed an issue with generating annotations in
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| 131 | signals.
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| 132 | - QDBusPendingReply and QDBusReply
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| 133 | * [QTBUG-6571] Fixed a crash that would happen if you tried to
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| 134 | make a call with a disconnected QDBusConnection.
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| 135 |
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| 136 | QtMultimedia
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| 137 | ------------
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| 138 |
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| 139 | - QAudioOutput
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| 140 | * [Merge request 418] Fixed compilation the example provided for
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| 141 | QAudioOutput::start.
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| 142 |
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| 143 | QtNetwork
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| 144 | ---------
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| 145 |
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| 146 | - QNetworkAccessManager
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| 147 | * HTTP: Send our locale with the HTTP request.
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| 148 | * HTTP: Start Accept-language and Authorization header with capital letter.
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| 149 | * HTTP: Fix caching algorithm, matching RFC 2612 and the documentation.
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| 150 | * HTTP [QTBUG-7060]: Fix an issue with headers like "private, max-age=300".
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| 151 | * file: Introduce special subclass for higher performance with file:// URLs.
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| 152 | - QTcpSocket
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| 153 | * [QTBUG-5799] Fix waitForConnected() on Windows.
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| 154 | - QNetworkProxyFactory
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| 155 | * Fixed systemProxyForQuery(), it could sometimes return invalid empty list
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| 156 | on Windows.
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| 157 | - QNetworkCookieJar
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| 158 | * [QTBUG-5815] Do not check paths when accepting cookies.
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| 159 | - QHostInfo
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| 160 | * Use five parallel threads for host lookup instead of one.
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| 161 |
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| 162 | QtOpenGL
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| 163 | --------
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| 164 |
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| 165 | - QGL2PaintEngineEx
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| 166 | * Performance: Don't mark brush as dirty if it hasn't changed.
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| 167 | * Performance: Use 3x3 PMV matrices rather than 4x4.
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| 168 | * Performance: Move the 0.5 offset we add for aliased rendering to
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| 169 | updateMatrix().
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| 170 | * Performance: Remove superfluous enable/disable vertex attrib arrays.
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| 171 | * Performance: Track the glVertexAttribPointer and only update it if it's
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| 172 | changed.
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| 173 | * [QTBUG-7094] Introduce new "snapToPixelGrid" flag for drawText.
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| 174 | - QGLContext
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| 175 | * bindTexture(QString) now supports DDS, ETC1, PVRTC2, and PVRTC4
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| 176 | compressed textures if the appropriate extensions are present
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| 177 | in the GL implementation.
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| 178 | * bindTexture(QImage): Reduce double-copying of textures when flipping.
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| 179 | * [QTBUG-6454] Better EGL extension checking to avoid prefix problems
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| 180 | with EGL_foo matching EGL_foo_bar.
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| 181 | * [QTBUG-6217] Work around problems with glColor4ub() on Intel Q45/Q43
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| 182 | Express by consistently using glColor4f() everywhere.
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| 183 | * bindTexture(QImage): Fix GL_BGRA formats under OpenGL/ES by using
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| 184 | the same value for both internal and external texture formats.
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| 185 | * [QTBUG-5041] Disable depth testing while in renderText().
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| 186 | - QGLEngineSelector
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| 187 | * [QTBUG-5638] Detect GL2 based on fragment shaders, not programs.
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| 188 | Fragment programs are a GL1 feature.
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| 189 | - QGLFramebufferObject
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| 190 | * [QTBUG-6712] Update docs to better explain how QPainter changes
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| 191 | the GL state when used on an FBO.
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| 192 | - QGLGlyphCache
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| 193 | * [QTBUG-6936] Fix memory leak of QGLGlyphCoord objects.
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| 194 | - QGLPaintDevice
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| 195 | * [QTBUG-6204] Rebind window surface FBO after native GL rendering.
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| 196 | - QGLPixmapData
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| 197 | * [QTBUG-6902] Align GL_RGB data on a 4-byte line boundary.
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| 198 | - QGLWidget
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| 199 | * [QTBUG-5002, QTBUG-6931] Fixed QGLWidget::renderText().
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| 200 | * Fixed WA_TranslucentBackground for QGLWidgets on X11/EGL.
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| 201 | * Fix EGL surface leaks when re-parenting on X11/EGL.
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| 202 | - QTriangulatingStroker
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| 203 | * [QTBUG-6045] Crash in dashed line handling in the GL stroker.
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| 204 |
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| 205 | QtOpenVG
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| 206 | --------
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| 207 |
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| 208 | - [QT-2555] Automatically destroy VG pixmaps when the last window surface
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| 209 | goes away to reduce memory consumption of backgrounded applications.
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| 210 | - [QTBUG-6639] Recover from out-of-memory when creating VGImage's.
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| 211 | - [QT-2554] Add a VGImage allocation pool to support reclaiming older
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| 212 | images when the GPU runs out of memory.
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| 213 | - [QTBUG-7051] Reset the OpenVG scissor after a native painting call-out.
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| 214 | - [QTBUG-7015] Avoid deep copies of QImage in QImage::bits() calls.
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| 215 |
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| 216 | QtWebKit
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| 217 | --------
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| 218 |
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| 219 | - Fixed user agent string on Symbian (webkit.org/b/31961).
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| 220 | - QWebInspector: Don't disable when hiding (webkit.org/b/31851).
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| 221 | - Fix JavaScript prompt behaviour for empty/null strings (webkit.org/b/30914).
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| 222 | - Fixed lastIndexOf() on Symbian (webkit.org/b/31773).
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| 223 | - Fixed crash with Flash on Windows with MinGW.
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| 224 | - Fixed wrapping of QObjects with recurring identity (webkit.org/b/31681).
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| 225 | - Fixed compilation with ICC.
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| 226 | - Fixed assertion when dragging SVG images (webkit.org/b/32511).
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| 227 | - Added the framecapture example to the default build (merge request 2235)
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| 228 | - Fixed crash with ACID3 test on Symbian
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| 229 | - Fixed security issue XSL stylesheets and security origins.
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| 230 |
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| 231 | QtSql
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| 232 | -----
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| 233 |
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| 234 | - [QTBUG-5373] Fixed QSqlRelationalTableModel doesn't correctly work with
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| 235 | relation in other database schema.
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| 236 | - [QTBUG-5298] (OCI) Fixed QSqlDatabase.tables() does not work with system
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| 237 | tables.
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| 238 | - [QTBUG-6421] Fixed setForwardOnly() for both OCI and SQLite.
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| 239 | - [QTBUG-6618] (ODBC) Fixed segfault when error string is larger than 256
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| 240 | chars.
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| 241 | - [QTBUG-4461] (OCI) Fixed problem with clobs being handled as binary.
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| 242 |
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| 243 | QtSvg
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| 244 | -----
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| 245 |
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| 246 | - QSvgRenderer
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| 247 | * [QTBUG-6867] Fixed regression in the parsing of paths with relative
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| 248 | offsets.
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| 249 | * [QTBUG-6899] Fixed crash when parsing invalid coordinate list.
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| 250 |
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| 251 | Qt Plugins
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| 252 | ----------
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| 253 |
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| 254 | - JPEG plugin
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| 255 | * Remove obsolete parameter string handling.
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| 256 | * [QT-2023] Re-implement ScaledSize, ClipRect, ScaledClipRect with
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| 257 | libjpeg features for greater performance.
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| 258 | - PBM plugin
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| 259 | * [QTBUG-6937] Use Mono instead of MonoLSB when writing pbm files.
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| 260 | - TIFF plugin
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| 261 | * [QTBUG-6870] BitsPerSample should default to 1 in TIFF files.
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| 262 | - PNG plugin
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| 263 | * [QTBUG-7161] Avoid a deep copy of QImage::bits() in the png writer.
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| 264 |
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| 265 |
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| 266 | ****************************************************************************
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| 267 | * Platform Specific Changes *
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| 268 | ****************************************************************************
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| 269 |
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| 270 | Qt for Unix (X11 and Mac OS X)
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| 271 | ------------------------------
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| 272 |
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| 273 | - [QTBUG-6755] Ensure we don't call select(2) with a negative timeout
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| 274 | if the timer expires during timeout recalculation.
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| 275 | - Added mkspecs for Sun CC that enable -library=stlport by default,
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| 276 | to restore STL capability with that compiler.
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| 277 | - [QTBUG-6576] Fixed compilation on HP-UX 11.11.
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| 278 | - [QTBUG-6961] Fixed compilation on HURD.
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| 279 |
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| 280 | Qt for Linux/X11
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| 281 | ----------------
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| 282 |
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| 283 | - [QTBUG-5732] Fixed querying of GLX extensions under X11.
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| 284 | - [QTBUG-5547] Fixed handling of the "..." button.
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| 285 | - Added new mkspec for Maemo targets (linux-g++-maemo).
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| 286 | - Added new mkspec for Scratchbox host compiler (unsupported/linux-host-g++).
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| 287 | - QGuiEventDispatcherGlib (internal class)
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| 288 | * Fix regression introduced in 4.6.0 that could cause X11 event
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| 289 | processing to starve timer events.
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| 290 | - QFileSystemWatcher
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| 291 | * [QTBUG-4840] Fix memory leak in the dnotify implementation.
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| 292 | - QIcon
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| 293 | * [QTBUG-6121] Fixed a problem causing svg-based icon themes to look fuzzy.
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| 294 | - QGtkStyle
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| 295 | * [QTBUG-6484] Ensure that gtk-enable-mnemonics is respected.
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| 296 |
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| 297 | Qt for Windows
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| 298 | --------------
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| 299 |
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| 300 | - [QTBUG-5145] Compile fixes for win32-icc.
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| 301 | - QAtomicPointer
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| 302 | * [QTBUG-6079] Fix compilation for 64-bit Windows targets.
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| 303 | - QEventDispatchWin32 (internal class)
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| 304 | * [QTBUG-6083] Fix a performance regression introduced in 4.6.0
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| 305 | that would cause all Qt posted events to be sent at 15-16ms
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| 306 | intervals (instead of as quickly as possible).
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| 307 | - Vista/XP styles
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| 308 | * [QTBUG-6271] Fixed a compatibility issue with MDI windows in
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| 309 | certain non-standard themes.
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| 310 |
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| 311 | Qt for Mac OS X
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| 312 | ---------------
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| 313 |
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| 314 | - QPixmap
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| 315 | * [QTBUG-5070] Fixed a crash on Mac that could occur when loading
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| 316 | pixmaps of different sizes into the same QPixmap object.
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| 317 | - [QTBUG-6973] Fixed a memory leak when using QWidget::setWindowIcon() in
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| 318 | Carbon.
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| 319 | - [QTBUG-5186] Fixed a bug which caused drag and drop icons to show
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| 320 | incorrectly.
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| 321 | - [QTBUG-6636] Fixed a crash due to stack overflow in QColorDialog on Cocoa.
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| 322 | - [QTBUG-6378] Fix a text cursor rendering bug.
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| 323 | - [QTBUG-6636] Fixed a crash when calling removeToolBar on Mac native toolbars
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| 324 | using Cocoa.
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| 325 | - [QTBUG-5613] Fixed a bug where the application refused to quit when showing
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| 326 | a single modal dialog.
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| 327 | - Gestures are now available for the Carbon port also when building Qt against
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| 328 | SDK < 10.6
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| 329 |
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| 330 | Qt for Symbian
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| 331 | --------------
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| 332 |
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| 333 | - QApplication
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| 334 | * [QTBUG-6098] Added a flag to avoid construction of application panes.
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| 335 | - Other:
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| 336 | * [QTBUG-4990] Rewrote most of the regular pointer handling.
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| 337 |
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| 338 |
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| 339 | ****************************************************************************
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| 340 | * Tools *
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| 341 | ****************************************************************************
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| 342 |
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| 343 | - Designer
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| 344 | * [QTBUG-6863] Fixed static linking on Mac.
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| 345 | * [QTBUG-6760] Fixed display of action shortcut in action editor.
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| 346 | * [QTBUG-6505] Fixed handling of QHeaderView properties.
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| 347 | * [QTBUG-5335] Fixed handling of layout margins of custom containers.
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| 348 |
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| 349 | - uic
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| 350 | * [QTBUG-5824] Fixed code generation to generate a call to
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| 351 | QMainWindow::setCentralWidget() for promoted widgets as well.
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| 352 |
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| 353 | ****************************************************************************
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| 354 | * Important Behavior Changes *
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| 355 | ****************************************************************************
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| 356 |
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| 357 | - Phonon
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| 358 | * Include headers have been changed. The only official method for
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| 359 | including Phonon headers is <phonon/ClassName> or
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| 360 | <phonon/classname.h>. This change was necessary because of
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| 361 | frameworks on Mac.
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| 362 |
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| 363 | Compatibility is provided for <Phonon/*> includes, but is not
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| 364 | guaranteed to work. Including <phonon> and <Phonon> is not
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| 365 | supported.
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| 366 |
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