Win a copy of Classic Computer Science Problems in Swift this week in the iOS forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic

JPanel & JScrollPane  RSS feed

 
Greenhorn
Posts: 27
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I have a class which extends JPanel. 2D images are drawn on it dynamically, as are components added to it. The problem is that when an instance of this object is added to the window:
getContentPane().add(new JScrollPane(myPanel));
I don't get the scroll bars when components are added to it dynamically below the viewport. Help!!!
 
Bartender
Posts: 4121
IntelliJ IDE Java Spring
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
You'll have to modify the preferred size of the component when you add shapes. You'll also need to call parent.validate() to force the scroll pane to redraw...

I think I have an example here.
 
It is sorta covered in the JavaRanch Style Guide.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!