I'm not sure if this is a bug, but I am unable to determine the cause
of it or get it to stop happening. I found that a click on ANY square
in the legend causes the first column of the Column Chart to become
selected/deselected depending on its initial state. I have an alert
popping up right now, and I can tell you that it does not give a row
or a column number when the click is in the legend. It does give a row
and column if the click is on the actual column. I am using GWT to
code the visualization. Here is my selection handler: Let me know if
you need the table code as well. Thanks!
private SelectHandler createSelectHandler(final ColumnChart chart)
{
return new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
String message = "Selected: ";
int column = 0;
int row = 0;
// May be multiple selections.
JsArray<Selection> selections = chart.getSelections();
for (int i = 0; i < selections.length(); i++) {
// add a new line for each selection
message += i == 0 ? "" : "\n" + " i " + i;
Selection selection = selections.get(i);
// message += " i is " + 1;
if (selection.isCell()) {
row = selection.getRow();
column = selection.getColumn();
//Window.alert("selected row " + row + "
selected column " + column );
message += "row is: " + row + ":" + column +
" columns selected " + i + " is i's value";
} else if (selection.isRow()) {
row = selection.getRow();
message += "row " + row + " selected";
}
}//end for
//the code below is probably irrelevant. It is used to communicate
with other widgets and pass selections
//get ids of selected fixes
ArrayList<String> idlist = new ArrayList<String>();
ArrayList<String> idmapcol = idmap.get(column);
idlist.addAll(idmapcol);
//add old ids
if ((oldids != null) && (!oldids.isEmpty())) {
//if oldids contains any of the new selections,
deselect
for (String i : idlist) {
if (oldids.contains(i)) {
oldids.removeAll(idlist);
idlist.clear();
}
}
//add ids that are still selected
for (String d : oldids) {
idlist.add(d);
}
}
//send focus message with selections
selectedids = idlist.toArray(new
String[idlist.size()]);
lasttime = sendSelect(selectedids);
Window.alert(message + " " + selectedids.toString());
}//end onSelect
};
} //end createSelectHandler
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