Hello,
I am recently developing an application that is implementing a CellTable,
where there are Columns where the underlying Cell object is a
CompositeCell. As you know, a CompositeCell has an underlying
List<HasCell<T, C>>. Generally, i can get this to work just fine when I am
simply displaying text with a List<HasCell<Object, ?>>, with each HasCell
containing a TextCell, or other Cells that take up a defined amount of
visual real estate. The problem that I encounter is when trying to
interact with an EditableTextCell embedded within the CompositeCell, when
its underlying value is an empty String.
Here is example code for reference...
public void test() {
CellTable<Object> table = new CellTable<Object>();
table.setTableLayoutFixed(true);
EditTextCell eCell = new EditTextCell();
HasCell<Object, ?> innerColumn = new Column<Object, String>(
eCell) {
@Override
public String getValue(Object object) {
return "";
}
};
List<HasCell<Object, ?>> hasCellList = new ArrayList<HasCell<
Object, ?>>();
hasCellList.add(innerColumn);
CompositeCell<Object> compCell = new CompositeCell<Object>(
hasCellList);
Column<Object, Object> outerColumn = new Column<Object,
Object>(compCell) {
@Override
public Object getValue(Object object) {
return object;
}
};
table.addColumn(outerColumn, "Outer");
table.setColumnWidth(outerColumn, 10, Unit.EM);
}
As this example relates to my actual project, I find that the width of the
outerColumn is rendered just fine. And when eCell has a non-empty String,
the cell can be clicked, and edited, and all of that. However, in the case
where the eCell gets an empty String, the clickable area (to edit its
contents) is incredibly narrow, and very difficult to find unless you know
what to look for. Considering that i am able to interact with
EditableTextCells with emtpy String values at the outerColumn level, I
thought that all I would need to do is to define a width of innerColumn.
For the life of me, i cannot figure out how to set the width of
innerColumn, as it is not directly attached to the CellTable. How do I do
that, or am I approaching this incorrectly?
Note that the example is a simplification, and that the reason I am using
the CompositeCell to optionally render a TextCell or EditableTextCell
conditionally based on the Object passed to the CompositeCell.
thanks,
Rob
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