| Qt 5.1 introduces many new features and improvements as well as bugfixes |
| over the 5.0.x series. For more details, refer to the online documentation |
| included in this distribution. The documentation is also available online: |
| |
| http://qt-project.org/doc/qt-5.1 |
| |
| The Qt version 5.1 series is binary compatible with the 5.0.x series. |
| Applications compiled for 5.0 will continue to run with 5.1. |
| |
| Some of the changes listed in this file include issue tracking numbers |
| corresponding to tasks in the Qt Bug Tracker: |
| |
| http://bugreports.qt-project.org/ |
| |
| Each of these identifiers can be entered in the bug tracker to obtain more |
| information about a particular change. |
| |
| **************************************************************************** |
| * General * |
| **************************************************************************** |
| |
| General Improvements |
| -------------------- |
| - The Qt.application object in QML has gained the following new members |
| * arguments property, containing any command line arguments of the application |
| * name property, containing the string of the application name |
| * version property, containing the string of the application version |
| * aboutToQuit() signal, allowing last-minute cleanup |
| - New Qt.platform.os property exposes the current platform. |
| |
| Third party components |
| ---------------------- |
| |
| |
| |
| **************************************************************************** |
| * Important Behavior Changes * |
| **************************************************************************** |
| |
| - A Window declared nested inside another Item or Window automatically |
| becomes transient for (centered upon) its parent's window, if x and y |
| were not explicitly specified |
| - The resources property of Item is now its own property independent |
| of QObject. It no longer returns all QObject children, or explicitly |
| sets QObject parent. The resources property now behaves as documented. |
| |
| - As part of a fix for QTBUG-30555, ListView and GridView properties, such |
| as count, which are based off of the data model will no longer update |
| immediately if queried. Updates are batched to happen once per frame (or |
| when properties are being set). You may manually update using the |
| forceLayout() method, new in QtQuick 2.1. |
| |
| - For QML tests, tryCompare now correctly fails when it only gets two parameters |
| |
| - If a QObject has a property and a slot (or invokable method) with the same |
| name, in QML the previous behavior was to let the property obscure the |
| method; from Qt 5.1 things work in the opposite way, that is a property can |
| never obscure a method having the same name. This is especially important |
| for objects having dynamic properties, such as QQmlPropertyMap. This change |
| was a consequence of the fix for QTBUG-29836. |
| |
| - The 'with' statement has been deprecated in the QML language. Using this |
| statement now produces a deprecation warning, and future versions of the |
| QML engine may not recognize it. |
| |
| - The implicit import is now only loaded for QML files if there are |
| unresolved types after loading all explicit imports. Applications where |
| the implicit import triggered code other than the registration of types |
| will now need to add import "." to their QML files. |
| |
| **************************************************************************** |
| * Library * |
| **************************************************************************** |
| QtQml |
| ------ |
| - New QML import version QtQml.Models 2.1 contains generic versions of the VisualModel |
| types. These new generic versions work with any QObject based delegate, |
| not just QQuickItem based delegates. |
| - New module version QtQml 2.1 provides the new Instantiator type, which |
| is a generic version of Repeater which works with any QObject based |
| delegate, not just QQuickItem based delegates. |
| - New convenience class QQmlApplicationEngine automatically provides |
| functionality common in the C++ shell of a primarily QML application. |
| - New qmlClearTypeRegistrations() function in qqml.h. This function drops all |
| static data generated by previous qmlRegisterType calls. |
| - New qmlRegisteredType function in qqml.h, allowing the registration of |
| composite types from C++. |
| - New baseUrl() accessor in QQmlExtensionPlugin, in case a plugin |
| needs to load QML or other assets from the same directory. |
| |
| QtQuick |
| ------ |
| - New QML import version QtQuick 2.1 contains no new types, but adds new |
| properties, methods and signals to existing types. See the release notes |
| in the QtQuick documentation for details. |
| - QTBUG-30837: The Flickable type no longer fixes up the content area on |
| startup to move it inside the viewport. |
| - QTBUG-28086: Remote image URLs now work as a source for AnimatedSprite |
| |
| |
| **************************************************************************** |
| * Database Drivers * |
| **************************************************************************** |
| |
| |
| **************************************************************************** |
| * Platform Specific Changes * |
| **************************************************************************** |
| - New threaded render loop for Mac and Linux should lead to improved |
| graphical performance of QtQuick 2 on those platforms. |
| - New render loop on Windows should lead to smoother animations. |
| - assets: scheme supported on Android for urls inside QML |
| - Mac: "@2x" images are now loaded on "retina" systems. |
| |
| **************************************************************************** |
| * Compiler Specific Changes * |
| **************************************************************************** |
| |
| |
| **************************************************************************** |
| * Tools * |
| **************************************************************************** |
| |
| - qmlplugindump gains a -relocatable flag. |
| |
| |
| **************************************************************************** |
| * Plugins * |
| **************************************************************************** |
| |
| - New QML import QtQuick.Dialogs 1.0 contains types for more easily adding |
| dialogs to an application. Initially comes with FileDialog and ColorDialog |
| |
| - New QML import version QtQuick.Window 2.1 adds many new properties to both |
| the Screen and Window types. See the release notes in the QtQuick |
| documentation for further details. |
| |
| - QTBUG-30915: Animating emitRate on Emitter no longer fails for specific |
| animation timings. As a side effect, when emitting infinite particles |
| changing the particle count will no longer have an effect after initial |
| emission (previously it no longer had an effect after a certain point |
| into the animation). |
| |