The QQuickView class provides a window for displaying a Qt Quick user interface. 更多...
| 頭： | #include <QQuickView> |
| qmake: | QT += quick |
| Since: | Qt 5.0 |
| 繼承： | QQuickWindow |
| enum | ResizeMode { SizeViewToRootObject, SizeRootObjectToView } |
| enum | Status { Null, Ready, Loading, Error } |
| QQuickView (QWindow * parent = Q_NULLPTR) | |
| QQuickView (QQmlEngine * engine , QWindow * parent ) | |
| QQuickView (const QUrl & source , QWindow * parent = Q_NULLPTR) | |
| virtual | ~QQuickView () |
| QQmlEngine * | engine () const |
| QList<QQmlError> | errors () const |
| QSize | initialSize () const |
| ResizeMode | resizeMode () const |
| QQmlContext * | rootContext () const |
| QQuickItem * | rootObject () const |
| void | setResizeMode ( ResizeMode ) |
| QUrl | source () const |
| 狀態 | status () const |
| void | setSource (const QUrl & url ) |
| void | statusChanged (QQuickView::Status status ) |
| virtual void | keyPressEvent (QKeyEvent * e ) override |
| virtual void | keyReleaseEvent (QKeyEvent * e ) override |
| virtual void | mouseMoveEvent (QMouseEvent * e ) override |
| virtual void | mousePressEvent (QMouseEvent * e ) override |
| virtual void | mouseReleaseEvent (QMouseEvent * e ) override |
The QQuickView class provides a window for displaying a Qt Quick user interface.
這是方便子類化的 QQuickWindow 將自動加載並顯示 QML 場景當有給齣主源文件的 URL 時。另外，可以實例化自己的對象使用 QQmlComponent 並放置它們以手動設置 QQuickWindow .
典型用法：
QQuickView *view = new QQuickView; view->setSource(QUrl::fromLocalFile("myqmlfile.qml")); view->show();
To receive errors related to loading and executing QML with QQuickView , you can connect to the statusChanged () signal and monitor for QQuickView::Error . The errors are available via QQuickView::errors ().
QQuickView also manages sizing of the view and root object. By default, the resizeMode is SizeViewToRootObject , which will load the component and resize it to the size of the view. Alternatively the resizeMode may be set to SizeRootObjectToView which will resize the view to the size of the root object.
另請參閱 將 C++ 類型屬性暴露給 QML and QQuickWidget .
This enum specifies how to resize the view.
| 常量 | 值 | 描述 |
|---|---|---|
QQuickView::SizeViewToRootObject
|
0
|
The view resizes with the root item in the QML. |
QQuickView::SizeRootObjectToView
|
1
|
The view will automatically resize the root item to the size of the view. |
指定正加載狀態為 QQuickView .
| 常量 | 值 | 描述 |
|---|---|---|
QQuickView::Null
|
0
|
This QQuickView has no source set. |
QQuickView::Ready
|
1
|
This QQuickView has loaded and created the QML component. |
QQuickView::Loading
|
2
|
This QQuickView 正加載網絡數據。 |
QQuickView::Error
|
3
|
One or more errors has occurred. Call errors () to retrieve a list of errors. |
This property holds whether the view should resize the window contents
若把此特性設為 SizeViewToRootObject (the default), the view resizes to the size of the root item in the QML.
若把此特性設為 SizeRootObjectToView , the view will automatically resize the root item to the size of the view.
訪問函數：
| ResizeMode | resizeMode () const |
| void | setResizeMode ( ResizeMode ) |
另請參閱 initialSize ().
This property holds the URL of the source of the QML component.
Ensure that the URL provided is full and correct, in particular, use QUrl::fromLocalFile () when loading a file from the local filesystem.
Note that setting a source URL will result in the QML component being instantiated, even if the URL is unchanged from the current value.
訪問函數：
| QUrl | source () const |
| void | setSource (const QUrl & url ) |
組件的當前 status .
訪問函數：
| 狀態 | status () const |
通知程序信號：
| void | statusChanged (QQuickView::Status status ) |
構造 QQuickView 采用給定 parent 。默認值對於 parent 為 0。
構造 QQuickView with the given QML engine and parent .
Note: In this case, the QQuickView does not own the given engine object; it is the caller's responsibility to destroy the engine. If the engine is deleted before the view, status () 會返迴 QQuickView::Error .
另請參閱 Status , status ()，和 errors ().
構造 QQuickView with the given QML source and parent 。默認值對於 parent 為 0。
[虛擬]
QQuickView::
~QQuickView
()
銷毀 QQuickView .
返迴指針指嚮 QQmlEngine 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.
若 resizeMode is QQuickItem::SizeRootObjectToView the root object will be resized to the size of the view. initialSize contains the size of the root object before it was resized.
[override virtual protected]
void
QQuickView::
keyPressEvent
(
QKeyEvent
*
e
)
重實現自 QWindow::keyPressEvent ().
[override virtual protected]
void
QQuickView::
keyReleaseEvent
(
QKeyEvent
*
e
)
重實現自 QWindow::keyReleaseEvent ().
[override virtual protected]
void
QQuickView::
mouseMoveEvent
(
QMouseEvent
*
e
)
重實現自 QWindow::mouseMoveEvent ().
[override virtual protected]
void
QQuickView::
mousePressEvent
(
QMouseEvent
*
e
)
重實現自 QWindow::mousePressEvent ().
[override virtual protected]
void
QQuickView::
mouseReleaseEvent
(
QMouseEvent
*
e
)
重實現自 QWindow::mouseReleaseEvent ().
This function returns the root of the context hierarchy. Each QML component is instantiated in a QQmlContext . QQmlContext 's are essential for passing data to QML components. In QML, contexts are arranged hierarchically and this hierarchy is managed by the QQmlEngine .
Returns the view's root item .
[slot]
void
QQuickView::
setSource
(const
QUrl
&
url
)
Sets the source to the url , loads the QML component and instantiates it.
Ensure that the URL provided is full and correct, in particular, use QUrl::fromLocalFile () when loading a file from the local filesystem.
Calling this method multiple times with the same url will result in the QML component being reinstantiated.
注意： setter 函數對於特性 source .
另請參閱 source ().
返迴源 URL (統一資源定位符)，若有設置。
注意： getter 函數對於特性 source .
另請參閱 setSource ().
[signal]
void
QQuickView::
statusChanged
(
QQuickView::Status
status
)
This signal is emitted when the component's current status 改變。
注意： 通知程序信號對於特性 status .