Override this to react to cell activation.
Override this to create the actual editor control once editing is about to start.
Return the attribute to be used for rendering.
Return size required to show content.
Override this so that the renderer can get the value from the editor control (pointed to by editor):
Override this and make it return true in order to indicate that this renderer supports in-place editing.
Override this to react to a left click.
Override this to render the cell.
This method should be called from within Render() whenever you need to render simple text.
Override this to start a drag operation.