Components are not longer resizable after moving
- by Junior Software Developer
Hi guys
My question relates to swing programming. I want to enlarge a component (component x) by removing it from its parent panel (component a) and adding it in one of component a's parent (component b). Before that, I call setVisible(false) on all components in b. After that I want to make this back by removing it from b and adding on a.
After that all components are not longer resizable.
Why that?
An easy example:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTabbedPane;
public class SwingTest {
private static ViewPanel layer1;
private static JFrame frame;
private static JTabbedPane tabbedPane;
private static ViewPanel root;
public static void main(String[] args) {
frame = new JFrame();
frame.setLayout(new BorderLayout());
frame.setMinimumSize(new Dimension(800, 600));
root = new ViewPanel();
root.setBackground(Color.blue);
root.setPreferredSize(new Dimension(400, 600));
root.setLayout(new BorderLayout());
root.add(new JLabel("blue area"));
layer1 = new ViewPanel();
layer1.setBackground(Color.red);
layer1.setPreferredSize(new Dimension(400, 600));
layer1.setLayout(new BorderLayout());
tabbedPane = new JTabbedPane();
tabbedPane.add("A", new JLabel("A label"));
tabbedPane.setPreferredSize(new Dimension(400, 600));
layer1.add(tabbedPane);
root.add(layer1);
frame.add(root, BorderLayout.NORTH);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.pack();
frame.setVisible(true);
Thread t = new Thread() {
@Override
public void run() {
try {
Thread.sleep(8000);
System.out.println("start");
for (Component c : root.getComponents()) {
c.setVisible(false);
}
layer1.remove(tabbedPane);
root.add(tabbedPane);
Thread.sleep(8000);
root.remove(tabbedPane);
layer1.add(tabbedPane);
for (Component c : root.getComponents()) {
c.setVisible(true);
c.repaint();
}
} catch (InterruptedException e) {
//...
}
}
};
t.start();
}
}
