Hello,
I have a program that creates JInternalFrames which are located inside
one half of a JSplitPane. The JInternalFrames contain a JTable. I
would like that each JInternalFrame is sized in a way that it just
fits around the included JTable. Attempts with setPreferredSize() (as
shown below) did not give the desired result: the width is as
expected, but the height is always chosen too small. Am I missing a
mechanism to adjust component sizes? Below is a sample program.
TIA
Piet

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;

public class ScrolledFrame extends JFrame {
   String appName;
   JDesktopPane deskPane = new JDesktopPane();
   ScrolledFrame(String appName){
       super("Scrolled Internal Frames");
       JSplitPane splitPane = new
JSplitPane(JSplitPane.HORIZONTAL_SPLIT, new JPanel(), deskPane);
       splitPane.setDividerLocation(100);
       splitPane.setDividerSize(5);
       this.getContentPane().add(splitPane);
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       addWindow(7);
   }
   public void addWindow(int number){
       GridWindow iGW = new GridWindow(number);
       iGW.setLocation(5,5);
       iGW.setSize(iGW.getPreferredSize());
       iGW.setDefaultCloseOperation(JInternalFrame.DISPOSE_ON_CLOSE);
       this.deskPane.add(iGW);
       iGW.setVisible(true);
   }
   public static void main(String[] args){
       ScrolledFrame iSF = new ScrolledFrame("Scrolled Frame Test");
       iSF.pack();
       iSF.show();
   }
}
class GridWindow extends JInternalFrame{
   JTable IJTable;
   GridWindow(int number){
       super("Internal window "+number,true,true);
       DefaultTableColumnModel columnModel = new
DefaultTableColumnModel();
       for (int i = 1;i<number+1;i++){
           TableColumn tc = new TableColumn(i,i % 2 ==0 ? 150 : 75);
            tc.setHeaderValue("Column"+i+1);
           columnModel.addColumn(tc);
       }
       IJTable = new JTable(new MyTableModel(number),columnModel);
       IJTable.setRowHeight(18);
       IJTable.setAutoResizeMode(5);
       JScrollPane tablePane = new JScrollPane(IJTable);
       tablePane.getViewport().setPreferredSize(IJTable.getPreferredSize());
       getContentPane().add(tablePane);
       setPreferredSize(tablePane.getPreferredSize());
   }
}
class MyTableModel extends AbstractTableModel{
   int number;
   MyTableModel(int number){
       this.number = number;
   }
   public int getRowCount(){
       return this.number;
   }
   public int getColumnCount(){
       return this.number;
   }
   public String getColumnName(int colNum){
       return (String)("Column"+colNum);
   }
   public Object getValueAt(int rowNum,int colNum){
       return "Value-"+rowNum+"-"+colNum;
   }
   public void setValueAt(Object value,int rowNum,int colNum){
   }
}