demos-qmlcustommodel.qdoc
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r1385 | /*! | ||
\example demos/qmlcustommodel | ||||
\title QML Custom Model | ||||
\subtitle | ||||
This example shows how to use your own QAbstractItemModel derived data model as a data source for a ChartView. | ||||
\image demos_qmlcustommodel.png | ||||
First we create a ChartView: | ||||
\snippet ../demos/qmlcustommodel/qml/qmlcustommodel/main.qml 1 | ||||
Then our data model that contains the shares of top-5 car manufacturers in Finland for the last 5 years. The model | ||||
could be constructed from various sources depending on the use case, but here we use static data for the sake of | ||||
simplicity. Check customtablemodel.cpp, declarativemodel.cpp and plugin.cpp to see how to make your own | ||||
QAbstractItemModel accessible on QML. | ||||
\snippet ../demos/qmlcustommodel/qml/qmlcustommodel/main.qml 2 | ||||
Then we create several series as children for the same ChartView. First a pie series that illustrates the shares of | ||||
the car manufacturers in Finland in 2011: | ||||
\snippet ../demos/qmlcustommodel/qml/qmlcustommodel/main.qml 3 | ||||
And one line series for each manufacturer presenting the share between 2007-2011, for example this one is for | ||||
Volkswagen. The series is not visible by default; it is made visible when the user clicks on the Volkswagen slice | ||||
on the pie series: | ||||
\snippet ../demos/qmlcustommodel/qml/qmlcustommodel/main.qml 4 | ||||
And finally a bar series that shows the share for all the other manufacturers between 2007-2011: | ||||
\snippet ../demos/qmlcustommodel/qml/qmlcustommodel/main.qml 5 | ||||
*/ | ||||