This week's book giveaways are in the Scala and Android forums.
We're giving away four copies each of Machine Learning Systems: Designs that scale and Xamarin in Action: Creating native cross-platform mobile apps and have the authors on-line!
See this thread and this one for details.
Win a copy of Machine Learning Systems: Designs that scale this week in the Scala forum
or Xamarin in Action: Creating native cross-platform mobile apps in the Android forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic

Scrolling an extension of JLabel doesn't work :s  RSS feed

 
Ranch Hand
Posts: 176
Chrome Mac Windows
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Howdy folks,

I'm having a lot of trouble getting a custom JComponent to scroll inside a JScollPane. I can only scroll if the mouse pointer is over the scroll bars, when I move the pointer into the JViewport (or whatever it's called) I can no longer scroll.

I've launched the 1st demo on the How to Use Scroll Panes pages and obviously it does what you'd expect. I noticed that this example uses an extension of JLabel (called ScrollablePicture). I've also noticed that this example still works if the ScrollablePicture class doesn't implement Scrollable and MouseMotionListener.

So I decided to do something similar to that but my program persistently refuses to work





Any pointers would be much appreciated.

Thank-you
 
Olivier Legat
Ranch Hand
Posts: 176
Chrome Mac Windows
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I found a work-around (with a little bit of help). It's not particularly tidy but it works:

 
I've never won anything before. Not even a tiny ad:
Rocket Oven Kickstarter - from the trailboss
https://coderanch.com/t/695773/Rocket-Oven-Kickstarter-trailboss
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!