Name: rk38400 Date: 04/15/98


I have added a JToolBar in the "North"
of the content pane. It is floatable.

The first time i drag it off, it works.
Then i close the floating window, and the tollbar
returns in the "North" of the content pane.

Now it becomes difficult drag it off again.
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import java.awt.*;
import java.awt.event.*;
import java.util.*;
import com.sun.java.swing.*;
import com.sun.java.swing.event.*;
import com.sun.java.swing.text.*;
import com.sun.java.swing.border.*;

public class FirstAppl extends JFrame
{
public static void main(String[] args)
{
try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
/*
UIManager.setLookAndFeel("com.sun.java.swing.plaf.metal.MetalLookAndFeel");
UIManager.setLookAndFeel("com.sun.java.swing.plaf.mac.MacLookAndFeel");
UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
*/
}
catch (Exception e){}

new FirstAppl("Prove");
}

public FirstAppl(String lab)
{
Container content=getContentPane();
content.setLayout(new BorderLayout());
ImageScrollPane isp=new ImageScrollPane("tondo.jpg");
content.add("Center",isp);

JMenuBar mbar=new JMenuBar();

JMenu mfile=new JMenu("File");
JMenu medit=new JMenu("Edit");
JMenu mproj=new JMenu("Project");
mbar.add(mfile);
mbar.add(medit);
mbar.add(mproj);

mfile.setToolTipText("File menu");
medit.setToolTipText("Edit menu");
mproj.setToolTipText("Project menu");

JMenuItem mopen=new JMenuItem("Open");

Icon cane=new ImageIcon(getClass().getResource("cane.gif"));
JMenuItem mclose=new JMenuItem(cane);
Icon ape=new ImageIcon(getClass().getResource("ape.gif"));
JMenuItem mnew=new JMenuItem("New",ape);
JCheckBoxMenuItem mview=new JCheckBoxMenuItem("Vedi...");

mnew.setHorizontalTextPosition(AbstractButton.RIGHT);
      mfile.add(mopen);
mfile.add(mclose);
mfile.add(mnew);
mfile.add(new JSeparator());
mfile.add(mview);
mfile.add(new JSeparator());

ButtonGroup colori=new ButtonGroup();
JRadioButtonMenuItem scelta1=new JRadioButtonMenuItem("Rosso");
JRadioButtonMenuItem scelta2=new JRadioButtonMenuItem("Verde");
JRadioButtonMenuItem scelta3=new JRadioButtonMenuItem("Blu");
colori.add(scelta1);
colori.add(scelta2);
colori.add(scelta3);
mfile.add(scelta1);
mfile.add(scelta2);
mfile.add(scelta3);

content.add("North",mbar);

mclose.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae)
{
doDialog();
}
});

JPopupMenu pm=new JPopupMenu("Comandi");
JMenuItem m1=new JMenuItem("uno");
JMenuItem m2=new JMenuItem("due");
JMenuItem m3=new JMenuItem("tre");
pm.add(m1);
pm.add(m2);
pm.add(m3);

final Component temp1=isp.getContent();
final JPopupMenu temp2=pm;
isp.getContent().addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent me)
{
temp2.show(temp1,me.getX(),me.getY());
}
});

JToolBar tb=new JToolBar();
JButton tb1=new JButton("apri");
JButton tb2=new JButton("nuovo");
JButton tb3=new JButton("salva");
tb.add(tb1);
tb.add(tb2);
tb.add(tb3);
content.add("North",tb);

setLocation(100,100);
setSize(400,300);
show();
}

void doDialog()
{
final JDialog dlg=new JDialog(this,"Hello",true);
Container content=dlg.getContentPane();
content.setLayout(new BorderLayout());

JLabel lab=new JLabel("porca vacca boia");
Border offext=new EmptyBorder(5,5,5,5);
Border line=new CompoundBorder(offext,new EtchedBorder());
lab.setBorder(new CompoundBorder(line,new EmptyBorder(5,5,5,5)));

content.add("Center",lab);

JPanel p=new JPanel();
content.add("South",p);
p.setLayout(new FlowLayout(FlowLayout.CENTER));
JButton ok=new JButton("ok");
p.add(ok);
ok.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
dlg.dispose();
}
});

dlg.pack();
Rectangle s=getBounds();

dlg.setLocation(s.x+100,s.y+100);
dlg.show();
}

class ImageScrollPane extends JScrollPane
{
JLabel lbl;
ImageScrollPane(String file)
{
Icon tondo=new ImageIcon(getClass().getResource("tondo.jpg"));
lbl=new JLabel(tondo);
getViewport().add(lbl);
}

JComponent getContent(){return lbl;}
}
}
(Review ID: 27477)
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