Solved

Pb with JTabbedPane

Posted on 2002-04-30
7
571 Views
Last Modified: 2012-06-22
In my application, i've build a JTabbedPane, with 2 tabs.
The second tab contains a JPanel which contains a subclass of Canvas at the center.

When i start the application, the first tab is selected, but it paint the canvas of the second tab. Then, when i select de 2nd tab then the 1st by clicking, the content of the 1st tab become correct again.
It's at the init of the JTabbedPane that the problem occur.
I've tried to call :
tabbedPane.setSelectedIndex(1);
tabbedPane.setSelectedIndex(0);
to force to repaint 2nd tab then 1st tab, but to no effect.

Does anybody know this problem or similar ?
Thanks a lot.
0
Comment
Question by:stdt
  • 4
  • 2
7 Comments
 
LVL 9

Expert Comment

by:Venci75
ID: 6980039
try to call the repaint() method explicitly
0
 

Author Comment

by:stdt
ID: 6980189
I've tried to call the repaint() method and even the repaintImmediately(...) method, unsuccessfully.
0
 

Author Comment

by:stdt
ID: 6980281
I've tried to call the repaint() method and even the repaintImmediately(...) method, unsuccessfully.
0
Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 

Author Comment

by:stdt
ID: 6980302
I've tried to call the repaint() method and even the repaintImmediately(...) method, unsuccessfully.
0
 

Author Comment

by:stdt
ID: 6980470
OTHER QUESTION :
I've made a test by replacing the Canvas by a JPanel in the 2nd tab, and the problem has disapeared. In fact the Canvas witch is AWT is painted wherever it is. And the management of a JTabbedPane with a Canvas is bad.
In fact, i use a Canvas component because i just need to paint in the Graphics.

Is there a Swing component like Canvas in AWT ?
0
 
LVL 92

Accepted Solution

by:
objects earned 50 total points
ID: 6982422
You should not be using a heavyweight component (Canvas) inside your JTabbedPane (lightweight component).
Instead of using a Canvas just use a JPanel, or subclass JComponent.
0
 
LVL 92

Expert Comment

by:objects
ID: 7012665
Just use a subclass of JComponent, or a JPanel.

Thanks for the points :-)

http://www.objects.com.au
Brainbench MVP for Java 1
http://www.brainbench.com
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
couple of eclipse 5 46
Running JavaFX on JDeveloper 12C 1 52
pagenation logic how it is working in my code 1 53
restrict decimal places for double datatype 10 19
For customizing the look of your lightweight component and making it look opaque like it was made of plastic.  This tip assumes your component to be of rectangular shape and completely opaque.   (CODE)
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers will learn about the different types of variables in Java and how to declare them. Decide the type of variable desired: Put the keyword corresponding to the type of variable in front of the variable name: Use the equal sign to assign a v…
The viewer will learn how to implement Singleton Design Pattern in Java.

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question