Hi there,
I'm new to this GWT stuff, and am trying to create a cascading
calendar along the lines of a menu with child menus.
So far I've knocked the following together, but the first child of the
VerticalPanel does not get any of mouse-events. If you uncomment the
line below so that there is a "dummy" first-child Widget, the mouse-
listener fires.
---------------------------------------------------
public class CalendarWidget extends PopupPanel {
private DateTimeFormat yearValue = DateTimeFormat.getFormat("yyyy");
private String[] months = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
private Panel debugPanel;
public CalendarWidget(Date startDate, Date endDate) {
super(true, false);
int startYear = Integer.parseInt(yearValue.format(startDate));
int endYear = Integer.parseInt(yearValue.format(endDate));
int size = (endYear - startYear) + 1;
VerticalPanel yearPanel = new VerticalPanel();
add(yearPanel);
// yearPanel.add(new Label("1st child"));
MouseListener yearListener = new CalendarMouseListener();
for (int idx = 0; idx < size; idx++) {
Label yearLabel = new Label(Integer.toString(startYear
+ idx));
yearLabel.addMouseListener(yearListener);
Image image = new
Image("/velocity/images/email_lbl.gif");
image.addMouseListener(yearListener);
HorizontalPanel labelPanel = new HorizontalPanel();
labelPanel.add(yearLabel);
labelPanel.add(image);
yearPanel.add(labelPanel);
}
debugPanel = new VerticalPanel();
RootPanel.get().add(debugPanel);
}
class CalendarMouseListener extends MouseListenerAdapter {
@Override
public void onMouseEnter(Widget sender) {
debugPanel.add(new InlineLabel("mouse-enter"));
}
@Override
public void onMouseLeave(Widget sender) {
debugPanel.add(new InlineLabel("mouse-leave"));
}
@Override
public void onMouseUp(Widget sender, int x, int y) {
debugPanel.add(new InlineLabel("mouse-up:" + x +"," +
y));
}
}
}
------------------------------------------------
An explanation as to what's happening would be gratefully received, as
would an example of the correct pattern to follow to do this as
elegantly as possible.
Best wishes,
Michael
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