| 1 | Qt 4.5.1 is a bug-fix release. It maintains both forward and backward
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| 2 | compatibility (source and binary) with Qt 4.5.0. 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://doc.trolltech.com/4.5
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| 7 |
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| 8 | The Qt version 4.5 series is binary compatible with the 4.4.x series.
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| 9 | Applications compiled for 4.4 will continue to run with 4.5.
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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 Task Tracker:
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| 13 |
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| 14 | http://www.qtsoftware.com/developer/task-tracker
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| 15 |
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| 16 | Each of these identifiers can be entered in the task tracker to obtain more
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| 17 | information about a particular change.
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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 | General Improvements
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| 24 | --------------------
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| 25 |
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| 26 | - Documentation and Examples
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| 27 | * Added printing feature for the Spreadsheet demo.
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| 28 | * [245675] Clarified the differences between QItemDelegate and
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| 29 | QStyledItemDelegate.
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| 30 | * [248752] Marked QPrintDialog::printer(), setPrinter() and addButton()
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| 31 | as Unix only functions, part of Qt3Support.
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| 32 |
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| 33 | - Embedded Dialogs demo
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| 34 | * [246517] Fixed warnings and bugs in hover handling on Mac OS X
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| 35 |
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| 36 |
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| 37 | Optimizations
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| 38 | -------------
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| 39 |
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| 40 | - Graphics View Framework has been optimized in several areas
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| 41 | * Improved the performance of QGraphicsItem::clipPath().
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| 42 | * Improved the performance of QGraphicsItem::setPos().
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| 43 | * Improved the performance of QGraphicsItem::effectiveOpacity().
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| 44 | * Improved the performance of QGrahicsScene::items(*).
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| 45 | * Improved handling of updates.
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| 46 | * Reduced the number of floating point operations.
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| 47 | * Reduced QVariant overhead.
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| 48 |
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| 49 | Third party components
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| 50 | ----------------------
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| 51 |
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| 52 |
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| 53 | ****************************************************************************
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| 54 | * Library *
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| 55 | ****************************************************************************
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| 56 |
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| 57 | - QAbstractItemModel
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| 58 | * Clarified some warning messages printed if the model is invalid.
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| 59 |
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| 60 | - QAbstractEventDispatcher
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| 61 | * [248805] Duplicate timerids could occur if a timer is running while the
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| 62 | QObject is moved to another thread, stopping timers from working.
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| 63 |
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| 64 | - QAbstractSocket
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| 65 | * [192037] Emit the disconnected signal only if we were connected before.
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| 66 |
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| 67 | - QAccessible
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| 68 | * [221731] Fixed a bug where the accessibility plugin could crash if
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| 69 | there was an "&" at the end or spin forever if a label had a sequence of
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| 70 | "&&".
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| 71 | * [241161] Fixed a bug in browsing menus with the keyboard.
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| 72 |
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| 73 | - QAtomicInt
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| 74 | * [216492] Fixed compilation on 64-bit PowerPC machines with gcc 4.3.
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| 75 |
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| 76 | - QAuthenticator
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| 77 | * [237979] Fixed implementation of md5-sess.
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| 78 |
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| 79 | - QByteArray
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| 80 | * [246233] QByteArray::fromHex() fails with input of size 1.
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| 81 |
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| 82 | - QColorDialog
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| 83 | * [247349] Fixed a bug causing the wrong alpha value to be returned.
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| 84 |
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| 85 | - QCombobox
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| 86 | * [248094] Fixed scrollbar from appearing when not required.
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| 87 |
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| 88 | - QCompleter
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| 89 | * [246056] Fixed an assertion failure in setCompletionPrefix().
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| 90 | * [250064] Fixed a regression in focus policy propagation.
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| 91 |
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| 92 | - QtConcurrent
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| 93 | * [244718] Reduced the number of calls to QThread::idealThreadCount().
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| 94 |
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| 95 | - QDirIterator
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| 96 | * [247645] Fixed a bug that may loose all cached data inside QFileInfo.
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| 97 |
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| 98 | - QFile
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| 99 | * [244485] Renaming a file does not change QFile::fileName().
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| 100 | * [244500] QFile::rename() does not always return false when the method
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| 101 | fails
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| 102 |
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| 103 | - QFileInfo
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| 104 | * [205244] Return valid file info also for relative UNC paths.
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| 105 |
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| 106 | - QFileDialog
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| 107 | * [221323] Fixed a bug in QFileDialog's programmatical file selection.
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| 108 | * [248332] QFileDialog is slow after visiting a large directory.
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| 109 | * [250194] Fixed an issue with QFileDialog and QSortFilterProxyModel
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| 110 | index mapping.
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| 111 |
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| 112 | - QGLFramebufferObject
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| 113 | * Framebuffer object extension resolution now works with OpenGL/ES 2.0.
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| 114 |
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| 115 | - QGraphicsItem
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| 116 | * Fixed a slow down regression in QGraphicsItem::ItemCoordinateCache.
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| 117 | * [247890] Cached QGraphicsItems are not updated if update() is called
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| 118 | when they are hidden.
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| 119 | * [250272] Fixed a crash that could occur when an item is deleted but
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| 120 | it does not get removed from the sceneeventfilters.
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| 121 |
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| 122 | - QGraphicsGridLayout
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| 123 | * [242472] Fixed a bug where the calculation of the maximum width of a
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| 124 | column was incorrect.
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| 125 |
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| 126 | - QGraphicsScene
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| 127 | * [243707] Fixed a crash when adding a child before a parent to the
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| 128 | scene.
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| 129 |
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| 130 | - QGraphicsView
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| 131 | * [245766] Rubber Band drag mode does not update correctly when
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| 132 | scrolling.
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| 133 |
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| 134 | - QGraphicsWidget
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| 135 | * [246215] Fixed a regression where we could cache the wrong size hint
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| 136 | because we called the virtual sizeHint() from the constructor.
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| 137 |
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| 138 | - QHttp
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| 139 | * Compile fixes for QT_BEGIN_NAMESPACE being in the wrong place in some
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| 140 | private headers.
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| 141 | * [208445] Cancel request upon receiving unknown authentication method.
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| 142 |
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| 143 | - QHostAddress
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| 144 | * [247330] Fixed compilation on MinGW by adding a missing QPair include.
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| 145 |
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| 146 | - QLocalSocket
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| 147 | * Fixed a bug that would cause QLocalSocket to disconnect 30 seconds
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| 148 | after a succesful delayed connection on UNIX.
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| 149 |
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| 150 | - QMacStyle
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| 151 | * Adjusted the opacity value for popups.
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| 152 | * [248769] Fixed a regression where QMacStyle would only draw tabs when
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| 153 | passed a QStyleOptionTabV3.
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| 154 |
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| 155 | - QMainWindow
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| 156 | * [248048] Fixed a regression that would cause tooltips to disappear when
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| 157 | using the unified toolbar.
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| 158 |
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| 159 | - QMetaType
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| 160 | * [248890] The detailed description of QMetaType no longer contradicts
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| 161 | the documentation of QMetaType::type()
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| 162 |
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| 163 | - QMutex
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| 164 | * Fixed a performance regression for contended mutexes as reported on the
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| 165 | qt4-preview-feedback list.
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| 166 |
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| 167 | - QPainter
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| 168 | * Compile fixes for OpenGL paint engine on OpenGL/ES 1.1 CommonLite and
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| 169 | OpenGL/ES 1.0.
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| 170 | * [246573] Fixed a very slow stroking of paths in the X11 paint engine.
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| 171 | * [247083] Fixed the scale applied to antialiased cosmetic pens in X11
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| 172 | paint engine.
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| 173 | * [247492] Fixed a rendering bug in the raster paint engine causing
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| 174 | * [247505] Fixed missing fills of rectangles with negative width/height
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| 175 | in raster paint engine.
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| 176 | one-pixel offset when drawing premultiplied ARGB32 images on RGB16
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| 177 | images.
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| 178 | * [249490] Fixed one-pixel offset between stroke and fills of ellipses in
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| 179 | the X11 paint engine.
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| 180 | * [249628] Fixed a crash in OpenGL paint engine when filling using
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| 181 | Qt::NoBrush.
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| 182 |
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| 183 |
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| 184 | - QPixmap
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| 185 | * [249175] Fixed QPixmap::fromImage() of monochrome images to result in
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| 186 | black/white pixels and not transparent/white pixels.
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| 187 |
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| 188 | - QProcess
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| 189 | * [247865] Fixed a crash when calling QProcess::start() and
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| 190 | startDetached() with an empty program string.
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| 191 |
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| 192 | - QScrollBar
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| 193 | * [247985] Stylesheet: added the feature to style scrollbar menus.
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| 194 |
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| 195 | - QSharedPointer
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| 196 | * [246843] Fixed a crash caused by using QSharedPointer in global statics.
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| 197 |
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| 198 | - QSortFilterProxyModel
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| 199 | * [247867] Properly sort when calling appendRows().
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| 200 | * [248868] Re-sort when the model is reset if dynamicSort is enabled.
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| 201 | * [248868] Fixed QSortFilterProxyModel::sort() if dynamicSort was disabled.
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| 202 |
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| 203 | - QSSlSocket
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| 204 | * [245668] Set also protocol, verifyMode and verifyDepth in
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| 205 | setSslConfiguration().
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| 206 |
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| 207 | - QString
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| 208 | * [249517] Fixed a regression in replace(int, int, QChar) when the string
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| 209 | is empty.
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| 210 |
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| 211 | - QStyleSheetStyle
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| 212 | * Improved support for setting background and foreground roles in styles
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| 213 | such as the text color in a combo box popup on Mac and Cleanlooks, or
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| 214 | the background of QScrollBar.
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| 215 | * Fixed a crash that occured while styling the title bar of a QMdiArea.
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| 216 | * [188195] Fixed the background of QAbstractScrollArea losing its color
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| 217 | if styled with pseudo-class.
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| 218 | * [246542] Fixed a bug in QToolButton::hover{ color:.... }.
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| 219 |
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| 220 | - QThread
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| 221 | * [249997] Added documentation indicating that the priority set by the
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| 222 | programmer may be ignored, for example on Linux.
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| 223 |
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| 224 | - QTreeView
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| 225 | * Fixed a crash that may occur when events are processed immediately
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| 226 | after a QSortFilterProxyModel is invalidated.
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| 227 | * [246025] Fixed auto-expand that occured when quickly collapsing an item
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| 228 | after clicking on a child.
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| 229 | * [248163] Fixed a possible crash in the paintEvent() when spans are used.
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| 230 | * [248805] Calling QTreeView::sortByColumn() programmatically was not
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| 231 | working if manual sorting was disabled.
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| 232 |
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| 233 | - QWidget
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| 234 | * [250388] Fixed a potential crash in QWidget::scroll() when using the
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| 235 | raster graphics system.
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| 236 |
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| 237 | - QWidget
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| 238 | * [246852] Improved handling of WindowMaximizeButtonHint for widgets with
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| 239 | layouts.
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| 240 |
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| 241 | -QLocale
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| 242 | * String-to-number conversion functions will now ignore trailing and
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| 243 | leading whitespaces in all locales as documented.
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| 244 |
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| 245 | - QWizard
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| 246 | * [248107] Fixed a bug on Windows Vista causing the Back button to
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| 247 | connect to the back() signal twice.
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| 248 |
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| 249 | - Q3ListView
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| 250 | * [248689] Fixed a bug in Q3ListView that would not update under certain
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| 251 | conditions.
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| 252 |
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| 253 | - QtWebKit
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| 254 | * Fixed a bug in cookie handling (WebKit Bugzilla 24062, Benjamin Meyer).
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| 255 | * Fixed a bug in calling from JavaScript into NPAPI plugins on Windows.
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| 256 | * Fixed the updating state of WebActions (Erik Bunce)
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| 257 | * Fixed a bug in HTML 5 Canvas clearRect() (Dirk Schulze)
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| 258 | * Fixed the theming of text fields with KDE 4 Oxygen style (Zack Rusin)
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| 259 | * Fixed path fill styles (Zack Rusin)
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| 260 | * Fixed pre-edit text handling with input methods.
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| 261 | * [248643] Fixed compiling with the "-pedantic" compile option.
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| 262 |
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| 263 | - QSqlTableModel
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| 264 | * Made setTable() try and use the database's letter case (uppercase/
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| 265 | lowercase) of the given tablename.
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| 266 | * [189093] QSqlTableModel did not handle updates when one of the fields
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| 267 | had a NULL value.
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| 268 |
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| 269 | ****************************************************************************
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| 270 | * Database Drivers *
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| 271 | ****************************************************************************
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| 272 |
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| 273 | * Fixed the DB2 driver returning a double field as empty.
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| 274 | * Fixed a memory leak in the DB2 driver.
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| 275 | * Fixed the DB2 driver not quoting table/field names properly.
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| 276 | * Fixed an issue with ODBC & FreeTDS not accepting quotes in statements.
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| 277 | * Fixed a bug in the sqlite2 driver not returning false on failing to
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| 278 | execute a statement.
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| 279 | * PrecisionPolicy now works in the oracle driver.
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| 280 | * Fixed a bug in the ODBC driver returning a list of tables when
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| 281 | requested.
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| 282 | * Fixed Interbase retrieving scale/precision information on numeric/
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| 283 | decimal fields.
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| 284 | * Stopped drivers from quoting again when escapeIdentifier is called
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| 285 | twice.
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| 286 | * Fixed a bug in the sqlite2 driver not quoting fields correctly.
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| 287 | * [232769] Fixed a memory overflow issue on bound out strings in ODBC
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| 288 | Driver
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| 289 | * [249059] Fixed a bug that handled QPSQL datetime/time fields with
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| 290 | negative timezone offsets incorrectly.
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| 291 |
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| 292 | ****************************************************************************
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| 293 | * Platform Specific Changes *
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| 294 | ****************************************************************************
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| 295 |
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| 296 | Qt for Linux/X11
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| 297 | ----------------
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| 298 |
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| 299 | * Ensured proper resetting for input contexts when switching between
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| 300 | multiple input context plugins.
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| 301 | * Input methods preedit strings are now reset properly when user switches
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| 302 | focus without commiting a string.
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| 303 | * Unicode conversion functions will handle Latin-1 character set only if
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| 304 | they are used before a QCoreApplication/QApplication is constructed.
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| 305 | * Improved handling of failed unicode conversion.
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| 306 | * Fixed clipboard handling when the user manually creates an instance of
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| 307 | the QDesktopWidget.
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| 308 | * [226048] Ensured that the QDesktopWidget::resized() signal is emitted
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| 309 | properly when a new screen appears or the screen geometry is changed
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| 310 | without affecting the whole desktop's geometry.
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| 311 | * [232632] Fixed a bug in reparenting widgets to a difference X11 screen.
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| 312 | * [241888] The background of the drag-n-drop cursor is now respected,
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| 313 | according to the stylesheet.
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| 314 | * [244337] Improved input method handling when a widget's native window
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| 315 | id is recreated.
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| 316 | * [244607] Current focus widget is properly set and input method is
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| 317 | properly initialized when showing a toplevel widget that accepts
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| 318 | keyboard input.
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| 319 |
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| 320 | - Phonon/GStreamer
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| 321 | * [233188] Fixed a problem where the seek slider reset to 0 while being
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| 322 | dragged.
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| 323 | * [244259] Fixed a problem where the backend failed to indicate an error
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| 324 | when the streaming failed.
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| 325 | * [246097] Added support for the MediaController interface to allow audio
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| 326 | CD playback.
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| 327 | * [246189] Fixed a problem where the backend failed to correctly escape
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| 328 | certain file names casuing playback to not start.
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| 329 |
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| 330 |
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| 331 | - QGtkStyle
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| 332 | * The system palette is no longer strictly forced. Also improved behavior
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| 333 | related to system theme changes.
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| 334 | * Fixed palette and styling issues with the background color of combo box
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| 335 | popups.
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| 336 | * [238196] Allowed middle click to set scrollbar position, following GTK+
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| 337 | behavior.
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| 338 | * [239829] Disabled alt-key navigation for QGtkStyle following GTK+
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| 339 | behavior.
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| 340 | * [247653] Fixed a compilation issue on Solaris.
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| 341 | * [249363] QFrame is now styled as a GtkScrolledWindow.
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| 342 |
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| 343 | - Font rendering
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| 344 | * Improved performance of subpixel antialiased text rendering by using a
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| 345 | mask in the calls to XRender's text compositing function.
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| 346 | * [248387] Properly respect the font config LCD filter settings for
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| 347 | subpixel antialiased text rendering when Freetype's native subpixel
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| 348 | rendering is disabled.
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| 349 | * [248498] Fix garbled rendering of subpixel antialiased text when using
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| 350 | Freetype's native subpixel rendering for vertical subpixel layouts.
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| 351 | * [248644] Fall back to Qt's subpixel rendering if Freetype's subpixel
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| 352 | rendering was available at compile-time but not at run-time.
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| 353 |
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| 354 | - QEventDispatcherGlib
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| 355 | * Event posted to a thread before it is started are not processed until
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| 356 | others events are posted.
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| 357 |
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| 358 | - QWidget
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| 359 | * [213512] Fixed a bug that caused wrong clipping when using the
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| 360 | Qt::WA_PaintOutsidePaintEvent attribute.
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| 361 |
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| 362 |
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| 363 | Qt for Windows
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| 364 | --------------
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| 365 |
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| 366 | * [240891] Corrected the focus behavior of native file dialogs, when an
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| 367 | application has multiple toplevel widgets.
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| 368 | * [243583] Improved drag-and-drop handling when switching mouse buttons
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| 369 | quickly.
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| 370 | * [244875] The system menu will now be shown for a fullscreen window.
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| 371 | * [245330] Fixed a bug that caused mouse inputs to be ignored on modal
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| 372 | dialogs, when shown from an ActiveQt control.
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| 373 | * [249576] Fixed a crash when using a combobox with Qt::NoFocus.
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| 374 |
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| 375 |
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| 376 | - QCoreApplication
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