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author | Michael Brasser <michael.brasser@nokia.com> | 2010-04-16 04:54:19 (GMT) |
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committer | Michael Brasser <michael.brasser@nokia.com> | 2010-04-16 05:09:29 (GMT) |
commit | ba3f33401c97c5517abe19f4ea6f6307e4374c6c (patch) | |
tree | 0f5b75c49676e84bd48ff1ebeaae37662cf67634 /src/declarative/qml/qdeclarativeimageprovider.cpp | |
parent | 8693ed5a3fd0814802613c5a8a78b6802751bd0f (diff) | |
download | Qt-ba3f33401c97c5517abe19f4ea6f6307e4374c6c.zip Qt-ba3f33401c97c5517abe19f4ea6f6307e4374c6c.tar.gz Qt-ba3f33401c97c5517abe19f4ea6f6307e4374c6c.tar.bz2 |
More class documentation fixes for declarative.
Diffstat (limited to 'src/declarative/qml/qdeclarativeimageprovider.cpp')
-rw-r--r-- | src/declarative/qml/qdeclarativeimageprovider.cpp | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/declarative/qml/qdeclarativeimageprovider.cpp b/src/declarative/qml/qdeclarativeimageprovider.cpp index b992b9f..4be3472 100644 --- a/src/declarative/qml/qdeclarativeimageprovider.cpp +++ b/src/declarative/qml/qdeclarativeimageprovider.cpp @@ -45,31 +45,39 @@ QT_BEGIN_NAMESPACE /*! \class QDeclarativeImageProvider - \brief The QDeclarativeImageProvider class provides an interface for threaded image requests. + \since 4.7 + \brief The QDeclarativeImageProvider class provides an interface for threaded image requests in QML. - Note: the request() method may be called by multiple threads, so ensure the + QDeclarativeImageProvider can be used by a QDeclarativeEngine to provide images to QML asynchronously. + The image request will be run in a low priority thread, allowing potentially costly image + loading to be done in the background, without affecting the performance of the UI. + + See the QDeclarativeEngine::addImageProvider() documentation for an + example of how a custom QDeclarativeImageProvider can be constructed and used. + + \note the request() method may be called by multiple threads, so ensure the implementation of this method is reentrant. \sa QDeclarativeEngine::addImageProvider() */ /*! - The destructor is virtual. + Destroys the image provider. */ QDeclarativeImageProvider::~QDeclarativeImageProvider() { } /*! - \fn QImage QDeclarativeImageProvider::request(const QString &id, QSize *size, const QSize& requested_size) + \fn QImage QDeclarativeImageProvider::request(const QString &id, QSize *size, const QSize& requestedSize) Implement this method to return the image with \a id. - If \a requested_size is a valid size, resize the image to that size before returning. + If \a requestedSize is a valid size, the image returned should be of that size. - In any case, \a size must be set to the (original) size of the image. + In all cases, \a size must be set to the original size of the image. - Note: this method may be called by multiple threads, so ensure the + \note this method may be called by multiple threads, so ensure the implementation of this method is reentrant. */ |