Errors Panel
If you define a window inheriting from SimpleWindow, you will get an special kind of panel called Errors Panel. Every time an exception is thrown, its message will appear in this panel.
If you want to configure the number of lines to show, override createErrorsPanel:
@Override
protected ErrorsPanel createErrorsPanel(Panel mainPanel) {
new ErrorsPanel(mainPanel, "Ready. \n Set. \n GO! \n",
4 /* preferred number of lines */);
}You can also build your own ErrorsPanel, if your window doesn't fit in SimpleWindow hierarchy (like MainWindow or Window):
public class ErrorsPanelWindow extends MainWindow<Persona> {
@Override
public void createContents(Panel mainPanel) {
new ErrorsPanel(mainPanel, "Ready. \n Set. \n GO! \n",
4 /* optional, preferred number of lines */);
}