Qt 5.8 的新功能
Qt 5.8 中的新特征
Qt Core 模块
Qt GUI 模块
Qt Quick 模块
-
Refactored the Qt Quick scene graph to remove its OpenGL dependency, enabling backends based on other graphics APIs such as Vulkan or Direct3D.
-
Integrated the software renderer (previously known as the Qt Quick 2D Renderer) for Qt Quick as a proper scene graph backend.
-
Implemented support for partial updates in the software renderer.
-
Added an experimental Direct3D 12 backend.
-
Implemented caching of code and data structures generated from
.qml
and
.js
files to disk, reducing start-up time and memory consumption. The resulting
.qmlc
and
.jsc
cache files are memory mapped.
-
Cleaned up touch and mouse event delivery, and added a new internal class
QQuickPointerEvent
for this purpose.
Qt Quick Controls 2 模块
-
Added new QML types:
Dialog
,
DialogButtonBox
,
MenuSeparator
,
RoundButton
，和
ToolSeparator
.
-
Added ripple effects to the Material style.
-
Added hover effects to Material and Universal styles
-
添加
系统
theme to Material and Universal styles
-
Added new experimental
platform
QML types:
MenuBar
,
Menu
,
SystemTrayIcon
,
ColorDialog
,
FontDialog
,
MessageDialog
,
FileDialog
，和
FolderDialog
.
Qt WebEngine 模块
-
基于 Chromium 53.
-
Updated requirements to MSVC 2015 Update 2 or later on Windows.
-
添加
view-source
scheme support.
-
Added support for spellchecking with custom .bdic files.
-
Made tooltips (HTML5 global tile attribute) visible.
-
Added support for metadata (
@include
,
@exclude
,
@match
,
@name
，和
@run-at
) in user scripts.
-
QML: Enabled the use of custom dialogs and context menus.
-
QML: on eglfs, took the built-in dialogs based on Qt Quick Controls 2 into use.
-
Added support for printing.
-
Added a setting to enable printing of CSS backgrounds.
Qt Bluetooth 模块
-
Added Bluetooth Low Energy Peripheral support on macOS, iOS, and
WinRT
.
Qt Multimedia 模块
-
添加
QAudio::convertVolume
() and a matching QML method to convert audio volumes from one scale to another; for example, from logarithmic to linear scale.
-
Added support for rendering YUV 4:2:2 (YUYV, UYVY) video frames to
VideoOutput
QML 类型。
Qt Network 模块
-
Added support for TLS-PSK ciphersuites on server side.
-
Added support for configurable Diffie-Hellman parameters.
-
Added support for HTTP/2 in Network Access Manager.
Qt WebSockets 模块
-
Added support for TLS-PSK ciphersuites on client and server side.
Qt Charts 模块
-
Added a candlestick chart type.
Qt 3D 模块
-
Focused on maturation: Bug fixes, improving performance and test coverage.
-
添加
paint to texture
feature using
QPainter
.
-
Added optional support for issuing commands to Qt3D aspects (for example, from a profiler).
嵌入式平台
-
Enhanced multi-screen capabilities and configurability with eglfs when running on KMS/DRM, both with GBM and EGLDevice/Stream.
-
Added support for 90 and 180 degrees rotation of software-rendered content (
QWidget
) in eglfs.
可配置性 (Qt Lite 工程)
-
Qt 5.8 comes with a rewritten configuration system that allows for easy customization of Qt builds. The main focus of this feature is for the Device Creation, but it can also be used to tailor a Qt build for mobile or desktop platforms. The new configuration system allows removing individual pieces of functionality and APIs from Qt, creating a more lightweight set of libraries for deployment.
新模块
These modules were previously released as technology previews, and are now fully supported Qt add-on modules.
技术预览模块
-
Qt Gamepad
-
Enables Qt gaming applications to respond to gamepad input.
-
Qt Speech
-
Text to speech and speech recognition functionality. Currently only the text to speech features are released. Includes backends for several speech synthesizers on Windows, Linux, macOS, and Android.
-
Qt Network Authorization
-
Online authorization support with OAuth protocol, versions 1 and 2.
弃用功能
Deprecated modules are still included in Qt 5.8, but are considered for removal in future releases.
移除功能
-
Qt Quick 2D Renderer (functionality has been merged into Qt Quick).
API 变化列表
以下页面包含 Qt 5.8 中的 API 变化列表：
其它 Qt 5 发行的补充
