New-features-in-qt-5.2

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What is new in Qt 5.2

Qt 5.2 was released on 12th of December.

The following pages has more information:

• Qt 5.2 Release Announcement
• "Qt 5.2 Features":/qt5/qt52
• "Qt 5.2 Documentation":/doc

New Features

• Qt Core
  • Added class QCommandLineParser for command-line arguments parsing
  • Added new overload to QObject::connect() to add a context object when connecting to a lambda
  • Added new QStringRef methods; left, right, mid
  • Added QLoggingCategory/qCDebug, qCWarning, … macros to configure what gets logged at runtime
  • Added class QTimeZone to support time zones using IANA (Olson) time zone IDs
  • Added support to QDateTime for new Qt::TimeSpec of Qt::TimeZone and Qt::OffsetFromUTC
  • Added new class QCollator to provide advanced platform-based collation.
  • Added more I/O redirection possibilities to QProcess
  • Added iteration capability to containers in QVariant
  • Added dereferencing to QObject for smart pointers in QVariant
• Qt GUI
  • Added applicationState() function and applicationStateChanged() signal to QGuiApplication.
  • Added QOpenGLTexture class.
  • Added endian-neutral RGBA8888 formats to QImage.
• Qt Widgets
  • Added support for embedded clear button commonly used for item view filtering and side actions to QLineEdit
  • Added methods based on QUrl to QFileDialog
  • Added new QKeySequenceEdit class
  • Restore session-management support from Qt4
  • Restore basic startup-notification support on Unix
  • Added placeholderText property to QTextEdit
  • Added getMultiLineText static method to QInputDialog
  • Added tabBarClicked and tabBarDoubleClicked signals to QTabBar
  • Added replaceWidget in QLayout
  • Added an option to have a checkbox in QMessageBox
  • Added duration control on tooltips (e.g QWidget::setToolTipDuration)
  • Added substring support to QCompleter
  • Added buttonToggled signals to QButtonGroup
  • Added retainSizeWhenHidden to QSizePolicy
  • Added resizeContentsPrecision to QHeaderView
• Qt Print Support
  • Added support to QPrintDialog for advanced CUPS features on Linux, including server-side page range selection, odd/even page selection, pages-per-sheet, job scheduling, and banner pages.
• Qt QML
  • New property on Qt.application: state.
  • Can now define QML singletons with QML Files
  • Can apply file selectors to support certain styles of cross-platform development
  • qml binary runtime provides a supported method for launching QML-only applications
  • New V4 JS engine
• Qt Quick
  • New Scenegraph Renderer, for improved performance
  • Texture atlas support in SceneGraph
  • SceneGraph now supports rendering to an OpenGL Core profile
  • New animation types, called Animator, which can run animations on the the scene graph's render thread.
  • Support for external Drag and Drop
  • Threaded render loop now uses one non-sharing OpenGL per window.
• Qt Quick Controls
  • Added support for editable combo box
  • Added support for multi selection in TableView
  • Added support for setting columns movable in TableView
  • Added Switch type
  • Added BusyIndicator type
  • Simplified deployment
• Qt Quick Dialogs
  • New FontDialog
• Qt Quick Layouts
  • Added baseline support to layout
• Qt Network
  • QNetworkAccessManager: add public methods to pre-TCP/pre-SSL-connect
  • QSslConfiguration: add API to persist and resume SSL sessions
  • SSL code: allow for debugging SSL traffic with Wireshark / tcpdump
  • QNetworkConfiguration: add public member bearerTypeFamily()
• moc
  • added -M argument to add plugin metadata from the command line
• Accessibility
  • Enabled accessibility on Mac
  • Made the APIs public so that it is possible to implement accessibility for custom widgets
  • Basic accessibility support for Android
• Qt WebKit
  • CSS blending
  • Context menus for HTML5 video
  • Canvas Path object
  • GeoLocation (with QtPositioning)
  • Web Notifications
  • Page Visibility API
  • Threaded garbage collection
• Translations
  • Translation to Italian now available

New Modules

• Qt Bluetooth
  • Supported platforms: Linux/Bluez 4.x, BlackBerry
• Qt NFC
  • Supported platforms: BlackBerry
• Qt Positioning
  • Supported platforms: All platform/NMEA, Linux/GeoClue
• Qt Windows Extras
• Qt Mac Extras
• Qt Android Extras

Support for New Platforms

• Android
  • Full support for camera and recording
  • Low-latency audio (QAudioInput, QAudioOutput, QSoundEffect)
  • Command-line deployment tool
  • JNI convenience API
  • OpenSSL support
• iOS
  • Media player support
  • Basic camera support (only viewfinder and image capture)
  • Low-latency audio (QAudioInput, QAudioOutput, QSoundEffect)

Qt Creator

• Qt Creator 3.0
  • Initial iOS support
  • Multi-Screen extensions
  • API Cleanup
  • Enhanced Android support
  • Initial debugging backend for lldb (Mac)
  • Refactored and extended BlackBerry 10 support

Installation

• New reference installers
  • Qt for Android (Mac)
  • Qt for iOS (Mac)

• New target binaries
  • Qt for Android arm5(Windows, linux, Mac)