Hi ,
I am sure this topic has been posted before but, I just can't find the
right topic
I am trying to use AnnotatedTimeLine.PACKAGE with UiBinder
My UiBinder XML File is
<g:VerticalPanel width="450px" height="222px">
...
<g:HTMLPanel width="100px" height="160px">
<gct:AnnotatedTimeLine
ui:field="timelineplot" width="90px" height="150px"/>
</g:HTMLPanel>
<g:Label ui:field="lastUpdatedLabel"></g:Label>
</g:VerticalPanel>
My "timelineplot" field is declared with provided=true as
@UiField (provided = true)
AnnotatedTimeLine timelineplot;
As I understand for Visualization API I need to call
VisualizationUtils.loadVisualizationApi(timelineplotCallback,
AnnotatedTimeLine.PACKAGE);
where timelineplotCallBack is the call back function which initializes the
chart
Relevant code
Runnable timelineplotCallback = new Runnable()
{
@Override
public void run()
{
AnnotatedTimeLine timelineplot = new
AnnotatedTimeLine("90px", "150px");
DataTable talbe = createHistoryTable();
timelineplot.draw(talbe);
initWidget(uiBinder.createAndBindUi(handletoParent));
//timer to refresh data
CreateTimer();
}
};
VisualizationUtils.loadVisualizationApi(timelineplotCallback,
AnnotatedTimeLine.PACKAGE);
AnnotatedTimeLine.Options options =
AnnotatedTimeLine.Options.create();
options.setDisplayAnnotations(true);
options.setDisplayZoomButtons(true);
options.setScaleType(AnnotatedTimeLine.ScaleType.ALLFIXED);
options.setLegendPosition(AnnotatedTimeLine.AnnotatedLegendPosition.SAME_ROW);
// Additional data initialization
PrepareStockTable();
}
However, the run code is never executed ( no stop on breakpoints) and the
RootPanel.get("application").add(c); // where c is a composite object
consisting of the widgets including timeplot
It crashes at this line with
java.lang.AssertionError: This UIObject's element is not set; you may be
missing a call to either Composite.initWidget() or UIObject.setElement()
This is understandable since initWidget located in the callback is still
not called.
If I however call
" initWidget(uiBinder.createAndBindUi(handletoParent));"
just before the "PrepareStockTable();"
it crashes at the "(uiBinder.createAndBindUi(handletoParent));" line with
java.lang.AssertionError: UiField timelineplot with 'provided = true' was
null
On the other hand if my code is as follows :
Runnable timelineplotCallback = new Runnable()
{
@Override
public void run()
{
//DataTable talbe = createHistoryTable();
//timelineplot.draw(talbe);
CreateTimer();
}
};
VisualizationUtils.loadVisualizationApi(timelineplotCallback,
AnnotatedTimeLine.PACKAGE);
AnnotatedTimeLine.Options options =
AnnotatedTimeLine.Options.create();
options.setDisplayAnnotations(true);
options.setDisplayZoomButtons(true);
options.setScaleType(AnnotatedTimeLine.ScaleType.ALLFIXED);
options.setLegendPosition(AnnotatedTimeLine.AnnotatedLegendPosition.SAME_ROW);
//DataTable data = createHistoryTable();
//PrepareGWTChart();
AnnotatedTimeLine timelineplot = new AnnotatedTimeLine("90px",
"150px");
DataTable talbe = createHistoryTable();
timelineplot.draw(talbe);
initWidget(uiBinder.createAndBindUi(handletoParent));
then it crashes at " timelineplot.draw(talbe);" with
com.google.gwt.core.client.JavaScriptException: (Error)
@com.google.gwt.visualization.client.visualizations.Visualization::draw(Lcom/google/gwt/visualization/client/AbstractDataTable;)([JavaScript
object(15)]): Container width is zero. Expecting a valid width.
So what is the right way of using AnnotatedTimeLine.PACKAGE with UiBinder ??
Thanks for reading so far :)
Regards
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