issue with lwuit right-to-left label ticker

Question

I was trying to set ticker on a Label with lwuit 1.5, faced this issue: if I set label.setRTL(true) and then call

label.startTicker(UIManager.getInstance().getLookAndFeel().getTickerSpeed(), true);

ticker just shows first 21 characters of the label's text and ignores the rest.

I've tried:

label.setRTL(false);
label.startTicker(UIManager.getInstance().getLookAndFeel().getTickerSpeed(), true);

it shows up OK, the text goes from left to right, but when I set this in a FocusListener (cause ticker should start when the label receive focus and stop after it loosed focus) it just change direction (goes from right to left).

here's what i do:

Label test = new Label();
Container c1 = new Container(new FlowLayout());


test.setText("1234567890ABCDEFGHIJ1234567890");
test.setFocusable(true);
test.setRTL(false);
test.addFocusListener(new FocusListener (){

        public void focusGained(Component cmpnt) {
            ((Label)cmpnt).setRTL(false);
            ((Label)cmpnt).startTicker(UIManager.getInstance().getLookAndFeel().getTickerSpeed(), false);
        }

        public void focusLost(Component cmpnt) {
            ((Label)cmpnt).stopTicker();
        }
});
c1.addComponent(test);

score 1 · Answer 1 · answered Apr 08 '12 at 12:07

1

Look at setLabelFor, it will ticker the label for test when test gains focus. You should probably set RTL globally in the look and feel class.

answered Apr 08 '12 at 12:07

Shai Almog

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score 0 · Answer 2 · answered Apr 07 '12 at 05:55

I found the problem. wrong direction happens because I've implemented focusListener before adding the label to container (c1). so I just did this:

c1.addComponent(test);
test.addFocusListener(new FocusListener (){

    public void focusGained(Component cmpnt) {
        ((Label)cmpnt).setRTL(false);
        ((Label)cmpnt).startTicker(UIManager.getInstance().getLookAndFeel().getTickerSpeed(), false);
    }

    public void focusLost(Component cmpnt) {
        ((Label)cmpnt).stopTicker();
    }
});

and it simply worked. in fact I got the idea from Label class source code (lines 149 ~ 153):

// solves the case of a user starting a ticker before adding the component
    // into the container
    if(isTickerEnabled() && isTickerRunning() && !isCellRenderer()) {
        getComponentForm().registerAnimatedInternal(this);
    }

this part does not work, but I don't know why. just hope someone fix this bug.

issue with lwuit right-to-left label ticker

2 Answers2