How to dynamically assig keys to buttons?

Question

I have a section in my GUI that is generated dynamically according to a list of objects. So, for each object in that list I want to create a JButton and associate a keyboard shortcut.

For example:

for (String tag : testTags) {
    new JButton(tag).setMnemonic(KeyEvent.VK_F1);
}

How do I make the code "setMnemonic(KeyEvent.VK_F1)" dynamic in an elegant way? Is there some way to get a range of keys automatically and then use it in this iteration?

Thanks!

trashgod · Accepted Answer · 2011-06-17T19:55:17.230

4

An Action is well suited for this. See How to Use Actions for more.

edited Jun 17 '11 at 19:55

answered Jun 17 '11 at 19:28

trashgod

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In the long run, this is the best way to go. – vehk Jun 17 '11 at 20:15
Oh, nice. I actually didn't know about actions. This seems to solve my problem! Thanks! – ktulinho Jun 19 '11 at 20:21

score 2 · Answer 2 · answered Jun 17 '11 at 18:28

2

AbstractButton.setMnemonic(int)

Just iterate through the range of accepted ints.

answered Jun 17 '11 at 18:28

Boris Pavlović

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Something like: `int key = 112; new JButton(tag).setMnemonic(key++)` ? – ktulinho Jun 17 '11 at 18:53

vehk · Answer 3 · 2011-06-17T19:07:26.793

2

Either create an array containing your Keys with

int[] keys = {KeyEvent.VK_F1,KeyEvent.VK_F2,[...]};

or iterate over the range of the F1-F12 keys (112 - 123)

int key = KeyEvent.VK_F1;
for (String s : strings) {
    new JButton(s).setMnemonic(key++);
}

You do have to check if key is still in range (123 being F12), though.

edited Jun 17 '11 at 19:07

answered Jun 17 '11 at 19:01

vehk

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How to dynamically assig keys to buttons?

3 Answers3