124 lines
6.1 KiB
Plaintext
124 lines
6.1 KiB
Plaintext
Qt 5.9 introduces many new features and improvements as well as bugfixes
|
|
over the 5.8.x series. For more details, refer to the online documentation
|
|
included in this distribution. The documentation is also available online:
|
|
|
|
http://doc.qt.io/qt-5/index.html
|
|
|
|
The Qt version 5.9 series is binary compatible with the 5.8.x series.
|
|
Applications compiled for 5.8 will continue to run with 5.9.
|
|
|
|
Some of the changes listed in this file include issue tracking numbers
|
|
corresponding to tasks in the Qt Bug Tracker:
|
|
|
|
https://bugreports.qt.io/
|
|
|
|
Each of these identifiers can be entered in the bug tracker to obtain more
|
|
information about a particular change.
|
|
|
|
****************************************************************************
|
|
* Important Behavior Changes *
|
|
****************************************************************************
|
|
|
|
* qmlInfo now reports messages with a QtMsgType of QtInfoMsg instead of
|
|
QtWarningMsg. To continue to send warnings, callers should migrate to
|
|
the newly-introduced qmlWarning function.
|
|
|
|
****************************************************************************
|
|
* Library *
|
|
****************************************************************************
|
|
|
|
QtQml
|
|
-----
|
|
|
|
- The garbage collector has been rewritten to provide better memory
|
|
consumption, and improved, more predictable performance for JavaScript code.
|
|
- Array.prototype.find and Array.prototype.findIndex from ES6 are now implemented.
|
|
- Introduced qmlRegisterModule() that can be used to make a certain module
|
|
version available, even if no types or revisions are registered for that
|
|
version.
|
|
- Introduced qmlDebug & qmlWarning functions to qqmlinfo.h, in addition to
|
|
the pre-existing qmlInfo function. As a side effect, QQmlError has also
|
|
gained messageType() and setMessageType().
|
|
- [QTBUG-52013] Added QQmlEngine::offlineStorageDatabaseFilePath(dbName)
|
|
to allow getting the actual storage path for a particular database.
|
|
- [QTBUG-53091] Introduced Qt.application.displayName, to map the
|
|
QGuiApplication::applicationDisplayName property to QML.
|
|
- [QTBUG-45316] QML Settings has been fixed to handle JavaScript arrays.
|
|
|
|
QtQuick
|
|
-------
|
|
|
|
- Global:
|
|
* Improved stability of Animator's internals.
|
|
* [QTBUG-55496] Added a disk cache for OpenGL shaders to QtQuick.
|
|
* [QTBUG-58845] QWheelEvent delivered to all QQuickItems will now have a
|
|
correct global position.
|
|
* [QTBUG-57910] Touch events are now correctly ungrabbed if the touch event
|
|
was stolen by a parent item, such as a Flickable.
|
|
* [QTBUG-57098] Added Keys::shortcutOverride signal to allow prevention of
|
|
e.g. Shortcut from stealing key events.
|
|
* [QTBUG-56279] Added a shared memory image provider to conserve memory
|
|
when several processes use the same local image files.
|
|
|
|
- Window:
|
|
* [QTBUG-60232] Added QQuickWindow::sceneGraphBackend() to allow querying
|
|
which scene graph rendering backend is in use.
|
|
* [QTBUG-56115] Added a screen property to Window, which can be used to
|
|
declaratively associate a window with a specific screen. This is useful on
|
|
multi-screen embedded systems. Added Qt.application.screens as an array of
|
|
screens from which one can be chosen to assign to a Window. Added virtualX
|
|
and virtualY properties to Screen to enable querying the screen's position
|
|
within the virtual desktop.
|
|
|
|
- Items:
|
|
* [QTBUG-38515] Added horizontalOvershoot and verticalOvershoot
|
|
properties to Flickable, for use in implementing custom boundary actions and effects.
|
|
* [QTBUG-44762] Added a forceLayout method to Positioner types (Column, Row,
|
|
Flow, Grid) to force positioning of children to happen earlier. Additionally,
|
|
a positioningComplete signal has been added.
|
|
* [QTBUG-57203] Added TextInput::textEdited signal to distinguish user edits from
|
|
programmatical text changes.
|
|
* [QTBUG-42074][QTBUG-57003] Added support for characters in Private Use Area,
|
|
as well as zero-width joiners and zero-width non-joiners for TextInput and
|
|
TextEdit.
|
|
* [QTBUG-47662] Added MouseArea::pressAndHoldInterval to allow control over the
|
|
elapsed time before the pressAndHold signal is emitted.
|
|
* Item::grabToImage on an Image element will now work regardless of the
|
|
Image's sourceSize or cache properties.
|
|
* [QTBUG-52553][QTBUG-56501] Made it possible to enable horizontal
|
|
flicking in a vertical ListView, and vice versa. The only thing apps
|
|
must do is to specify the desired flick direction and the content
|
|
width (vertical ListView) or content height (horizontal ListView),
|
|
which is not calculated by ListView.
|
|
* Added Shortcut::sequences, to provide support for multiple different shortcut
|
|
sequences in a single Shortcut.
|
|
* Added rotation, ellipseDiameters and uniqueId properties to
|
|
MultiPointTouchArea.TouchPoint, and deprecated the area property.
|
|
A TouchPoint is now modeled as an ellipse centered on a point,
|
|
possibly rotated, depending on what the hardware and drivers support.
|
|
Android and the TUIO plugin support rotation and ellipseDiameters, for example.
|
|
The uniqueId is so far applicable only to the use of fiducials (tokens,
|
|
knobs or game pieces with hardware-based identification) on a TUIO touch surface.
|
|
|
|
- Accessibility:
|
|
* [QTBUG-58340] Fixed focus handling so that keyboard and VoiceOver's
|
|
virtual focus are in sync (QTBUG-58340).
|
|
|
|
- Text:
|
|
* Deprecated doLayout() in favor of forceLayout(), to improve consistency now
|
|
that more types (Positioners, Layouts, etc) have a forceLayout() method.
|
|
* [QTBUG-51133] Added fontInfo property to Text type, providing a way to
|
|
query properties of the actual font used for presenting the text.
|
|
* [QTBUG-58852] Text items with a renderType of Text.NativeRendering will no
|
|
longer stop rendering with a large number of characters.
|
|
|
|
|
|
QtTest
|
|
------
|
|
|
|
- [QTBUG-23083] Added TestCase::touchEvent to support simulating touch events
|
|
in tests.
|
|
- [QTBUG-56361] Added createTemporaryObject() and createTemporaryQmlObject()
|
|
functions to ensure that dynamically created objects can be destroyed at the
|
|
end of each test function.
|