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166 lines
6.1 KiB
Groff
166 lines
6.1 KiB
Groff
Qt 5.6.1 is a bug-fix release. It maintains both forward and backward
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compatibility (source and binary) with Qt 5.6.0.
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For more details, refer to the online documentation included in this
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distribution. The documentation is also available online:
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https://doc.qt.io/qt-5/
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The Qt version 5.6 series is binary compatible with the 5.5.x series.
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Applications compiled for 5.5 will continue to run with 5.6.
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Some of the changes listed in this file include issue tracking numbers
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corresponding to tasks in the Qt Bug Tracker:
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https://bugreports.qt.io/
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Each of these identifiers can be entered in the bug tracker to obtain more
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information about a particular change.
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****************************************************************************
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* Important Behavior Changes *
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****************************************************************************
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- Support for DirectFB is disabled by default, due to lack of
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development in upstream. To enable the platform plugin, pass the
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-directfb option to configure.
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- [QTBUG-44964] The new X event compression feature that was added in 5.6.0
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no longer applies to motion events from drawing tablets.
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configure & build system
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------------------------
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- The configure -D/-I/-L/-l/-R options do not affect the build of Qt's
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host tools any more when cross-building. While this usually improves
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the chances of a build succeeding, it may also require adjustments.
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qmake
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-----
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- [Unix] Paths passed to configure -R are not automatically used by 3rd
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party projects any more. Use QMAKE_RPATHDIR if your project explicitly
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depends on external libraries. Note that this is not needed for Qt or
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its transitive dependencies.
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- Expansions of ${QMAKE_FILE_IN_BASE} and ${QMAKE_FILE_OUT_BASE} in extra
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compilers are now automatically quoted.
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****************************************************************************
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* Library *
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****************************************************************************
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QtCore
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------
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- QObject:
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* [QTBUG-52542] If the compiler supports variadic templates, functors
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connected to signals will no longer be copied each time the signal is
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emitted.
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- QRect:
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* Fixed integer overflow in center(). This fixes the result for some
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corner-cases such as a 1x1 rectangle at (INT_MIN, INT_MIN), for which the
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previous implementation could return anything (due to invoking undefined
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behavior), but commonly returned (0, 0).
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- QStringRef:
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* Fixed relational operators against (const char*) to return the correct
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result.
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QtGui
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-----
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- [QTBUG-50199] QWheelEvent::phase() now returns zero rather than
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Qt::ScrollUpdate when the wheel event comes from an actual non-emulated
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mouse wheel, and the QT_ENABLE_MOUSE_WHEEL_TRACKING environment variable
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is set.
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- Image:
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* [QTBUG-50745] Fixed possible crash in QImage::pixel() for mono or indexed
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images.
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QtWidgets
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---------
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- Dialogs:
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* [QTBUG-51148] Fixed font dialog support for fonts with a non-existent
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family name and/or pixel size.
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- QHeaderView:
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* [QTBUG-50171] Fixed a repainting issue when items had been reordered.
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- QListWidget:
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* [QTBUG-15741] Fixed a bug that caused the default drop action to be
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ignored when using icon mode.
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****************************************************************************
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* Platform-specific Changes *
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****************************************************************************
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Android
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-------
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- The navigation bar is now hidden only on Android API level 19 and above.
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OS X
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----
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- [QTBUG-50262] QStandardPaths now returns the correct display name for the
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download folder.
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- [QTBUG-7000] QMacPrintEngine now really sets the printer resolution.
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- [QTBUG-48138] QPinchGesture on OS X now behaves like on other platforms:
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totalScaleFactor is the magnitude of the pinch and scaleFactor is the delta
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for the current event.
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Windows
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-------
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- Text:
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* [QTBUG-18711] Fixed disabling hints for application fonts.
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For example, when automatic scaling by device pixel ratio is in effect.
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* [QTBUG-47141] Made it possible to disable antialiasing for text when
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drawing into images.
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X11/XCB
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-------
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- [QTBUG-49071] Fixed failure to deliver focusIn events on hide/show.
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****************************************************************************
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* Tools *
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****************************************************************************
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configure & build system
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------------------------
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- [QTBUG-11545][Windows] Added missing -pch/-no-pch options to configure.exe.
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- [QTBUG-37952][Apple] configure -separate-debug-info is now supported.
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- [QTBUG-47313][QTBUG-47639] Fixed builds with "debug" and/or "release" in
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the build path's name.
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- [QTBUG-51621][Unix] Fixed transitive dependencies on non-Qt libraries.
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- [QTBUG-51644][QTBUG-53017] Fixed cross-builds which use a host compiler
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which is significantly different from the target compiler.
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- [QTBUG-52578][QNX] Unified some defaults between the Unix and Windows
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configures.
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- [Unix] configure -R now supports paths relative to -libdir.
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- [Android@Windows] Added missing -android-ndk-host option to configure.exe.
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- [MinGW] Fixed -release -force-debug-info builds actually being neither.
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- [WinCE] Fixed (Open)SSL detection.
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- Fixed builds with static libc.
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qmake
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-----
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- [QTBUG-34182] Fixed UTF-8 BOM breaking dependency calculation.
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- [QTBUG-38802][WinRT] Capabilities needed by Qt are now automatically
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added to the manifest.
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- [QTBUG-50924][WEC7][VS] Fixed deployment of Qt.
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- [QTBUG-51775][Unix@Windows] Fixed installation of target.targets when
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cross-building.
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- [QTBUG-51782] Fixed simultaneous use of the separate_debug_info and
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no_plugin_name_prefix CONFIG flags.
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- [QTBUG-52008] qmake-generated Visual Studio projects now automatically
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invoke windeployqt by default.
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- [QTBUG-52998] Restored use of -P option when invoking lex.
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- The expansions ${QMAKE_FILE_IN_EXT}, ${QMAKE_FILE_IN_NAME}, and
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${QMAKE_FILE_OUT_PATH} are now understood in extra compilers.
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