Qt 5.1 的新功能

Qt 5.1 introduces many changes for helping developers continue creating wonderful applications, easily and with less code. As well in this release, focus is placed on bug fixing and new features, while maintaining compatibility with Qt 5.0.

This page is a summary of new features. For specific API changes, the API 變化列錶 section contains links to new and obsolete classes.

新模塊

New modules add more functionality for developers to use on various platforms.

Qt Quick Controls - a set of reusable UI controls. Qt 5.1 targets desktop platforms, while future releases will include more features useful on touch devices.
Qt Quick Layouts - provides layouts for Qt Quick
Qt Quick Dialogs - 包含用於采用係統對話框創建和交互的類型
Qt X11 Extras - adds platform specific APIs for X11
Qt Sensors - provides access to sensor hardware and motion gesture recognition both via QML and C++ interfaces. Supports Android , BlackBerry, iOS , and Mer platforms.
Qt Serial Port - provides an interface for hardware and virtual serial ports

The 所有模塊 page contains a list of all modules in Qt 5.1.

新的支持平颱

Qt 5.1 introduces support for following new platforms with technology preview status:

Qt for Android (技術預覽)
Qt for iOS (技術預覽)

變化摘要

moc 變化

New keyword in Q_PROPERTY (), MEMBER , lets you bind a property to a class member without requiring to have a getter or a setter.

qmake 變化

On Windows: Added support for specifying application icon (via RC_ICONS ).

Qt Core 變化

Added support for SHA3 to QCryptographicHash
Added toInt(), toUInt(), and similar functions to QStringRef
A new threadsafe initialization of global statics through refactored Q_GLOBAL_STATIC .
A new class, QLockFile , provides locking between processes using a file. This lock enables applications to check that there is only one instance of it running.
A new class, QSaveFile , provides transaction such as file writing.

Qt GUI 變化

Support for embedding and reparenting of windows created from other processes, via QWindow::fromWinId ().
QWidget::createWindowContainer () adds the capability to embed QWindow 實例，譬如 QQuickView 或 QWindow 使用 QOpenGLContext , into a QWidget hierarchy.
Support for kerning advances in QRawFont::advancesForGlyphIndexes .
QImageReader and QImageWriter adds the ability to report supported MimeTypes.
New input method plugin, QComposeInputContext.
New GTK+ 2.x platformtheme plugin that provides native file, font, and color dialogs.
New class, QOpenGLContext::versionFunctions (), provides access to all OpenGL functions.
New QOpenGLTimerQuery and QOpenGLTimeMonitor 類。
New QOpenGLDebugLogger class expose KHR_debug extension for easy debugging.
Added support for Geometry, Tessellation Control, Tessellation Evaluation, and Compute shaders to QOpenGLShader and QOpenGLShaderProgram .
New QOpenGLVertexArrayObject 類。

Qt Network 變化

New encrypted() signal to QNetworkAccessManager and QNetworkReply so that applications can perform additional checks on the certificate chain.
Support for sending intermediate certificates when QSslSocket is used as a server and when using client certificates.
Support for SSL session reuse allowing much faster connections to servers.

Qt QML 變化

New QQmlApplicationEngine convenience class for QML applications.
New Instantiatior type for generic, dynamic object creation.
New QtQml.Models module containing ListElement , ListModel , DelegateModel , DelegateModelGroup ，和 ObjectModel .
New properties for Qt::application : arguments, name, and version.

Qt Quick 變化

New threaded render loop for Mac, Linux, and Embedded.
New render loop for windows for smoother animations.
New Qt Quick Dialogs submodule with FileDialog and ColorDialog 類型。
New Window properties: activeFocusItem, minimumWidth, minimumHeight, maximumWidth, maximumHeight, visibility, contentOrientation, and opacity.
New Item property: activeFocusOnTab.
New Grid properties: horizontalAlignment, verticalAlignment, and effectiveHorizontalAlignment.
New TextEdit properties: selectByKeyboard and textDocument
A Window declared inside another Window or Item will automatically be transient for (centered upon) the outer window.

Qt WebKit 變化

JavaScript JIT on Windows 64 bit.
Improved font rendering, kerning enabled by default.
Improved garbage collection.
支持 WOFF 字體。
Support for WebGL without accelerated compositing.
支持 GStreamer 1.0。
Improved perceived page load performance and support for Link prefetch.

Qt Widgets 變化

Added property toolTipsVisible in QMenu .

Qt Creator 兼容性

Qt Creator 2.7 complements this Qt release with the most prominent new features:

Improved C++11 code editing support
Qt Quick Designer with full support for Qt Quick
Android development target
Experimental QBS and diff integration

其它新特徵

還原支持靜態 Qt 構建

API 變化列錶

以下頁麵包含 Qt 5.1 中的 API 變化列錶

內容