MVVM Pattern"
From Documentation
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= Get Charts = | = Get Charts = | ||
| − | Get a < | + | Get a <code>Charts</code> by <code>wireComponents()</code>, please refer to [http://books.zkoss.org/zk-mvvm-book/8.0/advanced/wire_components.html MVVM Reference / Wire Components] |
| − | <source lang='java' | + | <source lang='java' highlight='8'> |
public class ShiftViewModel { | public class ShiftViewModel { | ||
@Wire | @Wire | ||
| Line 25: | Line 25: | ||
= Get ChartsEvent = | = Get ChartsEvent = | ||
| − | Because you usually need < | + | Because you usually need <code>ChartsEvent</code> API, you can get it by <code>@ContextParam</code> like: |
| − | <source lang='java' | + | <source lang='java' highlight='2'> |
@Command | @Command | ||
public void shiftPoint(@ContextParam(ContextType.TRIGGER_EVENT) ChartsEvent event) { | public void shiftPoint(@ContextParam(ContextType.TRIGGER_EVENT) ChartsEvent event) { | ||
Latest revision as of 03:09, 18 January 2022
You still can work with Charts in MVVM pattern with some exceptional usages.
Get Charts
Get a Charts by wireComponents(), please refer to MVVM Reference / Wire Components
public class ShiftViewModel {
@Wire
Charts chart;
//http://books.zkoss.org/zk-mvvm-book/8.0/advanced/wire_components.html
@AfterCompose
public void doAfterCompose(@ContextParam(ContextType.VIEW) Component view) throws Exception {
Selectors.wireComponents(view, this, false);
// initial series data
initPoints();
// hide some unnecessary options
hideOptions();
}
...
Get ChartsEvent
Because you usually need ChartsEvent API, you can get it by @ContextParam like:
@Command
public void shiftPoint(@ContextParam(ContextType.TRIGGER_EVENT) ChartsEvent event) {
// retrieve the point object.
Point point = event.getPoint();
// shift the point by updating its x value.
point.setX(point.getX().intValue() + random() / 10);
}
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