hiding title bar of JInternalFrame? -java

Question

I found some code online, I edited it a bit. I want to hide title bar of a JInternalFrame.

  JInternalFrame frame = new JInternalFrame();
  // Get the title bar and set it to null
  setRootPaneCheckingEnabled(false);
  javax.swing.plaf.InternalFrameUI ifu= frame.getUI();
  ((javax.swing.plaf.basic.BasicInternalFrameUI)ifu).setNorthPane(null);      

  frame.setLocation(i*50+10, i*50+10);
  frame.setSize(200, 150);
  //frame.setBackground(Color.white);      

  frame.setVisible(true);
  desktop.add(frame);

The problem is that the title bar isn't being hidden for some reason. Thanks.

score 16 · Answer 1 · answered Apr 05 '14 at 23:01

16

I solved this problem this way: I subclass JInternalFrame and add the following code to its constructor. (I get the subclassing for free because I use netBeans' GUI Builder)

((javax.swing.plaf.basic.BasicInternalFrameUI)this.getUI()).setNorthPane(null);

in your case I think

answered Apr 05 '14 at 23:01

Mark Ainsworth

811
8
24

Nice, this is the correct answer, unlike .setUI(null)! I also read somewhere that you might need to do this again after certain events (like minimizing the window) – Dmitry Avtonomov May 27 '14 at 20:45
This is the correct answer. It is also useful when combined with `frame.setBorder(null);` to use a [`JInternalFrame`](https://docs.oracle.com/javase/8/docs/api/javax/swing/JInternalFrame.html) as a solo component within a top-level [`JFrame`](http://docs.oracle.com/javase/8/docs/api/javax/swing/JFrame.html) as if it were a [`JPanel`](http://docs.oracle.com/javase/8/docs/api/javax/swing/JPanel.html). – Parker Jun 24 '15 at 20:15
Worked for me. I wasn't even going to try, but works like charm. Thank you. – George Oct 01 '15 at 14:39

score 15 · Answer 2 · edited Jul 15 '15 at 11:13

15

First convert the internalframe to basicinternalframe.

do it like this:-

BasicInternalFrameUI bi = (BasicInternalFrameUI)your_internalframe_object.getUI();
bi.setNorthPane(null);

After this your title bar will be invisible.

edited Jul 15 '15 at 11:13

balsick

1,099
1
10
23

answered Jun 03 '13 at 07:11

user2050146

189
2
11

score 2 · Answer 3 · answered Jul 09 '18 at 21:05

What the others say. Depending on the framework the ui might get updated though, which will make it reappear. So for me it worked initializing the JInternalFrame like this:

        JInternalFrame internalFrame = new JInternalFrame() {
           @Override
           public void setUI(InternalFrameUI ui) {
               super.setUI(ui); // this gets called internally when updating the ui and makes the northPane reappear
               BasicInternalFrameUI frameUI = (BasicInternalFrameUI) getUI(); // so...
               if (frameUI != null) frameUI.setNorthPane(null); // lets get rid of it
           }
        };

score 0 · Answer 4 · answered Jun 12 '16 at 01:05

for me this works very well:

    putClientProperty("JInternalFrame.isPalette", Boolean.TRUE);
    getRootPane().setWindowDecorationStyle(JRootPane.NONE);
    ((BasicInternalFrameUI) this.getUI()).setNorthPane(null);
    this.setBorder(null);

thanks.

hiding title bar of JInternalFrame? -java

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