The QDeclarativeView class provides a widget for displaying a Qt Declarative user interface. 更多...
继承 QGraphicsView .
The QDeclarativeView class provides a widget for displaying a Qt Declarative user interface.
QDeclarativeItem objects can be placed on a standard QGraphicsScene and displayed with QGraphicsView . QDeclarativeView is a QGraphicsView subclass provided as a convenience for displaying QML files, and connecting between QML and C++ Qt objects.
QDeclarativeView provides:
典型用法：
QDeclarativeView *view = new QDeclarativeView; view->setSource(QUrl.fromLocalFile("myqmlfile.qml")); view->show();
Since QDeclarativeView is a QWidget -based class, it can be used to display QML interfaces within QWidget -based GUI applications that do not use the Graphics View framework.
To receive errors related to loading and executing QML with QDeclarativeView, you can connect to the statusChanged () signal and monitor for QDeclarativeView.Error . The errors are available via QDeclarativeView.errors ().
If you're using your own QGraphicsScene -based scene with QDeclarativeView, remember to enable scene's sticky focus mode and to set itemIndexMethod to QGraphicsScene.NoIndex .
This enum specifies how to resize the view.
| 常量 | 值 | 描述 |
|---|---|---|
| QDeclarativeView.SizeViewToRootObject | 0 | The view resizes with the root item in the QML. |
| QDeclarativeView.SizeRootObjectToView | 1 | The view will automatically resize the root item to the size of the view. |
Specifies the loading status of the QDeclarativeView .
| 常量 | 值 | 描述 |
|---|---|---|
| QDeclarativeView.Null | 0 | This QDeclarativeView has no source set. |
| QDeclarativeView.Ready | 1 | This QDeclarativeView has loaded and created the QML component. |
| QDeclarativeView.Loading | 2 | This QDeclarativeView is loading network data. |
| QDeclarativeView.Error | 3 | One or more errors has occurred. Call errors () to retrieve a list of errors. |
parent argument, if not None, causes self to be owned by Qt instead of PyQt.
构造 QDeclarativeView with the given parent .
parent argument, if not None, causes self to be owned by Qt instead of PyQt.
构造 QDeclarativeView with the given QML source and parent .
返回指针指向 QDeclarativeEngine used for instantiating QML Components.
Return the list of errors that occurred during the last compile or create operation. When the status is not Error, an empty list is returned.
Returns the initial size of the root object
This function returns the root of the context hierarchy. Each QML component is instantiated in a QDeclarativeContext . QDeclarativeContext 's are essential for passing data to QML components. In QML, contexts are arranged hierarchically and this hierarchy is managed by the QDeclarativeEngine .
Returns the view's root item .
This is the default overload of this signal.
This signal is emitted when the view is resized to size .
This is the default overload of this signal.
This signal is emitted when the component's current status 改变。
