Qt 5.6 的新功能

Qt 5.6 是 LTS (长期支持) 发行。

新模块

• Qt Quick Controls 2
  • Included as a technology preview.
  • Provides lightweight QML types for creating performant user interfaces for embedded and mobile devices.
• Qt Serial Bus
  • Included as a technology preview.
  • Provides a framework for accessing serial bus backends in general, and implementations for Controller Area Network (CAN) bus and Modbus.
• Qt Compositor (Qt Wayland)
  • Included as a technology preview.
  • Provides a framework to develop Wayland compositor.
• Qt WebEngine Core
  • Provides a public API shared by both Qt WebEngine and Qt WebEngine Widgets .

Qt 5.6 中的新特征

Qt 3D 模块

• New buffer and attribute API.
• 支持 OpenGL instanced rendering where supported.
• 支持 OpenGL primitive restart .
• Support for clip planes, stencil operations, and many more OpenGL features.
• Support for easily generating buffer data from C++ and QML (using JavaScript typed arrays).
• qgltf tool to compile scenes into glTF .
• Support for loading glTF scenes via SceneLoader .
• Support for controlling multi-sampling with Scene3D .
• More standard materials: per-vertex colors and Gooch shading.
• New APIs for mouse input and collision detection.
• New Logic aspect to have QML/C++ code executed synchronously with the Qt 3D aspect engine. Useful for prototyping future Qt 3D features.

Qt Core 模块

• Reduced memory usage of dynamic properties.
• Allow logging directly to syslog on Linux systems.
• 添加 QStorageInfo::blockSize ().
• 添加 QVersionNumber 类。
• Added key_iterator to QHash and QMap .
• Added const_iterator to QByteArray .
• Added reverse iterator support to all sequential containers.
• 添加 QDir::listSeparator ().
• Optimized performance in QString .

Qt Canvas3D 模块

• Support for using Qt Quick items as textures.
• Support for rendering directly to Qt Quick scene background or foreground.

Qt GUI 模块

• Improved cross-platform OpenGL ES 3.0 and 3.1 support to enable developing mobile/embedded applications utilizing GLES3 features.
• Improved cross-platform high-dpi support.
• Raster engine support for rendering internally with 16bits-per-color.
• QImageReader now exports gamma values and other meta data for some image formats.

Qt Multimedia 模块

• New Playlist QML type.
• New audio role API for the media player (C++ and QML).
• Support for camera focus and video probe on WinRT.
• New functions in QML AudioEngine to support dynamic object creation.

Qt NFC 模块

• Added support for Android.

Qt Network 模块

• 添加 QHostAddress::isMulticast ().
• Support HTTP redirection in QNetworkAccessManager .

QPA (Qt 平台抽象)

• Optional support for using FreeType 在 macOS。
• Added support for NVIDIA Jetson TK1 Pro boards running Vibrante Linux via a new eglfs backend utilizing DRM, EGLDevice, and EGLStream.
• Added support for Intel Atom-based NUCs.
• Added support for WEC2013.
• Windows 10 fully supported (classic and WinRT app)
• Windows Store apps are now composited inside a XAML layer, allowing better integration with the native UI layer.
• 使用 libinput , if available, as the default on eglfs and linuxfb .

Qt Positioning 模块

• Added support for macOS.
• Added support for GPS receivers exposed as a serial port on Windows desktop (all versions).
• Removed libgeoclue dependency for the GeoClue backend.

Qt QML 模块

• Support for writing JavaScript function names to Linux's perf output.
• Reduced overall memory consumption.

Qt Testlib 模块

• More stable input event handling.

Qt WebView 模块

• Added support for WinRT.

Qt WebEngine 模块

• Based on Chromium 45.
• Support for pepper plugins including Flash.
• Support for unbundling and linking with system libraries on Linux.
• Support for following global Qt proxy settings.
• More WebActions from QtWebKit and WebAction API in QML.
• New QtWebEngineCore module for shared low-level API.
• New core API for custom URL schemes.
• New core API for intercepting and blocking network requests.
• New core API for tracking or blocking cookies.

Qt Widgets 模块

• Allow programmatic resizing of dock widgets.
• Allow dropping dock widgets into floating docks.
• Allow the user to re-arrange tabbed docks.
• Allow horizontal scrolling using a mouse wheel in QListView .
• 支持 QOpenGLWidget and QQuickWidget on WinRT.

移除功能

• Qt WebKit
• Qt Declarative (Qt Quick 1)

弃用功能

• Enginio
• Qt Script

These modules are still included in Qt 5.6, but are considered for removal in future releases.

API 变化列表

以下页面包含 Qt 5.6 中的 API 变化列表：

• Qt 5.6 中的新类和函数
• 过时类

其它 Qt 5 发行的补充

• Qt 5.5 的新功能
• Qt 5.4 的新功能
• Qt 5.3 的新功能
• Qt 5.2 的新功能
• Qt 5.1 的新功能
• Qt 5.0 的新功能

内容

• 新模块

• Qt 5.6 中的新特征

• Qt 3D 模块

• Qt Core 模块

• Qt Canvas3D 模块

• Qt GUI 模块

• Qt Multimedia 模块

• Qt NFC 模块

• Qt Network 模块

• QPA (Qt 平台抽象)

• Qt Positioning 模块

• Qt QML 模块

• Qt Testlib 模块

• Qt WebView 模块

• Qt WebEngine 模块

• Qt Widgets 模块

• 移除功能

• 弃用功能

• API 变化列表

• 其它 Qt 5 发行的补充