Problem with layout
Hello,
When I add() object of the JParameterPanel class with Null layout to main panel with GridBagLayout then all guts on JParameterPanel changes their positions and take the unexpected view.
Why?
publicclass JParameterPanelextends javax.swing.JPanel{
/** Creates new form JParameterPanel */
public JParameterPanel(){
initComponents();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">
privatevoid initComponents(){
jPanel1 =new javax.swing.JPanel();
jLabel1 =new javax.swing.JLabel();
jButton1 =new javax.swing.JButton();
setLayout(null);
setPreferredSize(new java.awt.Dimension( 1000, 1000 ) );
setMinimumSize(new java.awt.Dimension(1000, 1000));
jPanel1.setLayout(null);
jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());
jLabel1.setText("jLabel1");
jPanel1.add(jLabel1);
jLabel1.setBounds(130, 40, 34, 14);
add(jPanel1);
jPanel1.setBounds(10, 10, 350, 160);
jButton1.setText("jButton1");
add(jButton1);
jButton1.setBounds(400, 190, 75, 23);
}// </editor-fold>
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JPanel jPanel1;
// End of variables declaration
}
Thank you!
[2563 byte] By [
mustheroa] at [2007-11-27 8:39:31]
# 1
posted code works OK for me.post a sample program that displays the problem
# 2
Could you please post your code, because I can not separate the code? :(
# 3
public class JTestPanel extends javax.swing.JPanel {
/** Creates new form JTestPanel */
public JTestPanel() {
initComponents();
}
private void initComponents() {
java.awt.GridBagConstraints gridBagConstraints;
jButton1 = new javax.swing.JButton();
jPanel1 = new JParameterPanel();
jButton2 = new javax.swing.JButton();
jPanel2 = new javax.swing.JPanel();
setLayout(new java.awt.GridBagLayout());
jButton1.setText("jButton1");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
gridBagConstraints.weightx = 100.0;
add(jButton1, gridBagConstraints);
jPanel1.setLayout(null);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 1;
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
gridBagConstraints.weightx = 100.0;
add(jPanel1, gridBagConstraints);
jButton2.setText("jButton2");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 2;
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
gridBagConstraints.weightx = 100.0;
add(jButton2, gridBagConstraints);
jPanel2.setLayout(null);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 3;
gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
gridBagConstraints.weightx = 100.0;
gridBagConstraints.weighty = 100.0;
add(jPanel2, gridBagConstraints);
}
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private JParameterPanel jPanel1;
private javax.swing.JPanel jPanel2;
}
# 4
JFrame f = new JFrame();
f.getContentPane().setLayout(new GridBagLayout());
f.getContentPane().add(new JParameterPanel(),new GridBagConstraints());
f.setSize(1200,1200);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
# 5
> [code]
>JFrame f = new JFrame();
> f.getContentPane().setLayout(new GridBagLayout());
> f.getContentPane().add(new JParameterPanel(),new
> GridBagConstraints());
>f.setSize(1200,1200);
> f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
>f.setVisible(true);
> /code]
No,no... I'm trying to add JParameterPanel with Null layout to JTestPanel with GridBagLayout! Not directly to JFrame because it really works!
# 6
> No,no... I'm trying to add JParameterPanel with Null
> layout to JTestPanel with GridBagLayout! Not directly
> to JFrame because it really works!
What are you trying to achieve? Why do you want to use null layout when the layout managers offer so much assistance in maintaining a proper appearance of your app?
# 7
[edit]
just spotted your JTestPanel code, forget the code below
[/edit]
same result, works OK
JPanel jTestPanel = new JPanel(new GridBagLayout());
jTestPanel.add(new JParameterPanel(),new GridBagConstraints());
JFrame f = new JFrame();
f.getContentPane().add(jTestPanel);
f.setSize(1200,1200);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
Message was edited by:
Michael_Dunn
# 8
> What are you trying to achieve? Why do you want to
> use null layout when the layout managers offer so
> much assistance in maintaining a proper appearance of
> your app?
why? - it's another question. Now I want to use null layout and it's does not work properly with GridBagLayout. I'm trying to resolve this problem and figure out the mistake.
# 9
Could you try this please (using class JTestPanel)
JTestPanel jTestPanel = new JTestPanel ();
JFrame f = new JFrame();
f.getContentPane().add(jTestPanel );
f.setSize(1200,1200);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
and compare the result with
JParameterPanel jTestPanel = new JParameterPanel();
JFrame f = new JFrame();
f.getContentPane().add(jTestPanel );
f.setSize(1200,1200);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
# 10
reduce the height of JParameterPanel and it seems to do what you want//setPreferredSize( new java.awt.Dimension( 1000, 1000 ) );setPreferredSize( new java.awt.Dimension( 1000, 500 ) );
# 11
> reduce the height of JParameterPanel and it seems to
> do what you want
> //setPreferredSize( new java.awt.Dimension(
> 1000, 1000 ) );
> setPreferredSize( new java.awt.Dimension( 1000, 500 )
> );
This just changes size of the panel. But guts change their sizes independently, in my case these two things are not related. Therefore I have the same problem but just size of JParameterPanel is smaller.
# 12
with the size changed to ( 1000, 500 ), running it both ways (from reply #9),the size/relativity of the label and button (in JParameterPanel) is identicalwinxp pro, java 1.6.0_01
# 13
Thank you, finally it works! :)The problem was that I've messed up at the begining...
