diff options
Diffstat (limited to 'src/declarative/qml/qdeclarativeimageprovider.cpp')
| -rw-r--r-- | src/declarative/qml/qdeclarativeimageprovider.cpp | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/declarative/qml/qdeclarativeimageprovider.cpp b/src/declarative/qml/qdeclarativeimageprovider.cpp index 50a3aad733..56e04c963f 100644 --- a/src/declarative/qml/qdeclarativeimageprovider.cpp +++ b/src/declarative/qml/qdeclarativeimageprovider.cpp @@ -136,7 +136,8 @@ public: Image providers that support QImage loading automatically include support for asychronous loading of images. To enable asynchronous loading for an - \l Image source, set \l Image::asynchronous to \c true. When this is enabled, + image source, set the \c asynchronous property to \c true for the relevant + \l Image, \l BorderImage or \l AnimatedImage object. When this is enabled, the image request to the provider is run in a low priority thread, allowing image loading to be executed in the background, and reducing the performance impact on the user interface. @@ -147,6 +148,17 @@ public: \c true, the value is ignored and the image is loaded synchronously. + + \section2 Image caching + + Images returned by a QDeclarativeImageProvider are automatically cached, + similar to any image loaded by the QML engine. When an image with a + "image://" prefix is loaded from cache, requestImage() and requestPixmap() + will not be called for the relevant image provider. If an image should always + be fetched from the image provider, and should not be cached at all, set the + \c cache property to \c false for the relevant \l Image, \l BorderImage or + \l AnimatedImage object. + \sa QDeclarativeEngine::addImageProvider() */ |