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ifigure focus [message #991211]

Mon, 17 December 2012 19:12

michael jordan

Messages: 3
Registered: December 2012

Junior Member

i am currently writing an editor which displays a tree as nested boxes (tree root = outer box, children are contained within that box, etc)

my first figure is a FreeformLayer and then the hierarchy is created from nested "PlanFigure extends Figure" - so the freeformlayer contains 1 planfigure representing the root box (which then contains the hierarchy)

every box has

setRequestFocusEnabled(true);
		addMouseListener(new MouseListener.Stub() {
			@Override
			public void mousePressed(MouseEvent me) {
				requestFocus();
			}
		});
		addFocusListener(new FocusListener.Stub() {
			@Override
			public void focusGained(FocusEvent fe) {
				super.focusGained(fe);
				System.out.println(System.currentTimeMillis() + " : focus gained " + name);
			}

			@Override
			public void focusLost(FocusEvent fe) {
				super.focusLost(fe);
				System.out.println(System.currentTimeMillis() + " : " + name + " >> focus lost to " + fe.gainer);
			}
		});

when i click at any figure i immediately get the output like

1355771536094 : focus gained A
1355771536095 : A >> focus lost to null

my question: why do my figures immediately lose focus to nothing?

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Re: ifigure focus [message #991217 is a reply to message #991211]

Mon, 17 December 2012 19:57

michael jordan

Messages: 3
Registered: December 2012

Junior Member

after some trial and error the answer is

		addMouseListener(new MouseListener.Stub() {
			@Override
			public void mousePressed(MouseEvent me) {
				requestFocus();
				me.consume();
			}
		});

apparently not consuming the event must lead to the event being further processed, finally arriving at the default behavior/assumption that nothing was clicked (since the event was not consumed) and thus the current figure loses focus; this is speculation on my part even though it seems reasonable

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