Hi,
Very frustrated here and I am really hoping someone can help me out.
I am using GWT 1.7.1 and GWT-VIZ 1.0.2 on XP. The following code
works fine for me...
1. TabPanel tp = new TabPanel();
2. VerticalPanel vp = new VerticalPanel();
3. vp.add(new MyTimeline());
4. RootPanel.get().add(tp);
5. tp.add(vp, "stuff");
6. tp.selectTab(0);
...but just switching lines (4) and (5) as below...
1. TabPanel tp = new TabPanel();
2. VerticalPanel vp = new VerticalPanel();
3. vp.add(new MyTimeline());
4. tp.add(vp, "stuff");
5. RootPanel.get().add(tp);
6. tp.selectTab(0);
...causes the following exception;
[ERROR] Uncaught exception escaped
com.google.gwt.core.client.JavaScriptException: (Error):
number: 0
description:
at
com.google.gwt.visualization.client.visualizations.Visualization.draw
(Native Method)
at
com.google.gwt.visualization.client.visualizations.Visualization.onLoad
(Visualization.java:116)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:264)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Composite.onAttach(Composite.java:
102)
at com.google.gwt.user.client.ui.Widget.setParent(Widget.java:393)
at com.google.gwt.user.client.ui.Panel.adopt(Panel.java:119)
at com.google.gwt.user.client.ui.ComplexPanel.add(ComplexPanel.java:
86)
at com.google.gwt.user.client.ui.AbsolutePanel.add(AbsolutePanel.java:
80)
at uk.co.wibble.client.HistoryGetter.<init>(HistoryGetter.java:19)
at uk.co.wibble.client.TestTimeLine.run(TestTimeLine.java:22)
at com.google.gwt.ajaxloader.client.ExceptionHelper.runProtected
(ExceptionHelper.java:36)
Why should the order of these statements cause this kind of issue?
The above issue replicator models a production defect for me that
suffers from the same kind of line order related wierdness. It's not
related to the data as I can reproduce this with a wide range of
datasets. My host web page is empty (default one generated by GWT).
FYI, here is my AnnotatedTimeLine derivative...
public class MyTimeline extends AnnotatedTimeLine
{
public MyTimeline()
{
super(getData(), getOptions(), "700px", "240px");
}
private static AbstractDataTable getData()
{
DataTable data = DataTable.create();
data.addColumn(ColumnType.DATETIME, "Date");
data.addColumn(ColumnType.NUMBER, "Stuff)");
data.addRows(6);
try
{
data.setValue(0, 0, new Date(2008 - 1900, 1, 1, 1, 1,
1));
data.setValue(1, 0, new Date(2008 - 1900, 1, 2, 2, 2,
2));
data.setValue(2, 0, new Date(2008 - 1900, 1, 3, 3, 3,
3));
data.setValue(3, 0, new Date(2008 - 1900, 1, 4, 4, 4,
4));
data.setValue(4, 0, new Date(2008 - 1900, 1, 5, 5, 5,
5));
data.setValue(5, 0, new Date(2008 - 1900, 1, 6, 6, 6,
6));
}
catch (JavaScriptException ex)
{
GWT.log("Error creating data table - Date bug on mac?", ex);
}
data.setValue(0, 1, 30000);
data.setValue(1, 1, 14045);
data.setValue(2, 1, 0);
data.setValue(3, 1, 75284);
data.setValue(4, 1, 41476);
data.setValue(5, 1, 33322);
return data;
}
private static AnnotatedTimeLine.Options getOptions()
{
AnnotatedTimeLine.Options options =
AnnotatedTimeLine.Options.create
();
options.setDisplayAnnotations(true);
options.setOption("displayRangeSelector", false);
options.setScaleType(AnnotatedTimeLine.ScaleType.ALLFIXED);
return options;
}
}
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