path: root/examples/quick/threading/threading.qml
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authorAlan Alpert <alan.alpert@nokia.com>2012-04-23 14:39:48 +1000
committerQt by Nokia <qt-info@nokia.com>2012-04-26 04:53:08 +0200
commita5336a0577b715edf49bef3794c6b1a8fa225a73 (patch)
treea7cc3ad59d7af572e1582aa9f8eb9546697a7e6c /examples/quick/threading/threading.qml
parent5e62f313588dc81c7284c4eb451cb9ebe7f3c994 (diff)
More example docs
MouseArea, Threading and TouchInteraction Change-Id: I9ca812d20a6c87d68ef91066ae0a4b9bc8829478 Reviewed-by: Michael Brasser <michael.brasser@nokia.com>
Diffstat (limited to 'examples/quick/threading/threading.qml')
1 files changed, 12 insertions, 0 deletions
diff --git a/examples/quick/threading/threading.qml b/examples/quick/threading/threading.qml
index b96c6975ac..cff4dd83b9 100644
--- a/examples/quick/threading/threading.qml
+++ b/examples/quick/threading/threading.qml
@@ -48,8 +48,20 @@ import "../../shared" as Examples
\image qml-threading-example.png
Threaded ListModel contains a ListView and a ListModel. The ListModel is updated asynchronusly in another thread, and the results propagate back to the main thread.
+ A timer requests updates from the worker thread periodically:
+ \snippet examples/threading/threadedlistmodel/timedisplay.qml 0
+ Inside the worker thread, the ListModel is synchronized once the data is finished loading:
+ \snippet examples/threading/threadedlistmodel/dataloader.js 0
WorkerScript contains an example of using a WorkerScript to offload expensive calculations into another thread. This keeps the UI from being blocked. This example calculates numbers in Pascal's Triangle, and not in a very optimal way, so it will often take several seconds to complete the calculation. By doing this in a WorkerScript in another thread, the UI is not blocked during this time.
+ When the UI needs another value, a request is sent to the WorkerScript:
+ \snippet examples/threading/workerscript/workerscript.qml 0
+ The workerscript then is free to take a really long time to calculate it:
+ \snippet examples/threading/workerscript/workerscript.js 0
+ When it's done, the result returns to the main scene via the WorkerScript element:
+ \snippet examples/threading/workerscript/workerscript.qml 1
Item {