JPanel overriding revalidate()

Question

For my program I have a JPane that as the game progresses it adds labels to the panel, however the only way I can make the panels show up is by using add(label) then revalidating and vice versa for removing labels.

My problem is that once it gets to the point that I have more than 40 labels on the screen the revalidate has to process too many things, so how can I override the revalidate(), ether works, so that it only revalidates the specific component that was added, and not every component on the screen. I know there is a loop somewhere within the revalidate() method that will run through a loop of all components, but I just can not for the life of me find it. I would like to be able to call revalidate(component-here) or validate (component-here) and have it only update that specific component.

I know there are other ways of writing this program but I am only interested in how to override revalidate() so no "you could have redone your whole code this way which should only take you like 6 hours >.<".

http://www.fileserve.com/file/jFdQ6nv/FINAL_PROJECT.zip a link to my eclipse project, if anyone who wants to help would like to see what im actually talking abouyt

validate() is in the container class. – Elton Feb 19 '13 at 19:40 — Elton, Feb 19 '13 at 19:40

score 1 · Answer 1 · edited May 23 '17 at 11:49

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I just tried this example. Adding 1000 text areas only takes a second, and updates are instant. Labels go even faster. You might want to look at something else slowing it down.

Also, you could look at CellRendererPane. It overrides invalidate() to do nothing.

public void invalidate() {}

edited May 23 '17 at 11:49

Community

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answered Feb 20 '13 at 13:27

Catalina Island

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in mine it is an asteroids game, so i have lots of lables moving around and shooting and junk – Elton Feb 21 '13 at 15:44
Sorry, I've only seen asteroids games that draw shapes. – Catalina Island Feb 22 '13 at 13:47

JPanel overriding revalidate()

1 Answers1