package ifs;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class IterationCountDialog extends JDialog implements ActionListener {
private IFSCanvas owner;
private JTextField input1, input2;
public IterationCountDialog(IFSCanvas owner) {
super(getFrameParent(owner), "Set Iteration Counts", true);
this.owner = owner;
input1 = new JTextField("" + owner.getIterationCount(), 5);
input2 = new JTextField("" + owner.getIterationsForPreview(), 5);
JButton okButton = new JButton(" OK ");
JButton cancelButton = new JButton("Cancel");
okButton.addActionListener(this);
cancelButton.addActionListener(this);
JPanel content = new JPanel();
setContentPane(content);
content.setLayout(new BorderLayout(10,10));
JLabel info = new JLabel(" Set the number of iterations that are applied
" +
"to a point to determine its location in the image.
" +
"Each iteration constists of applying a randomly selected
" +
"map to the point. Increasing the interation count might
" +
"give a more accurate image, but it will take longer to
" +
"compute. There are separate iteration counts for the actual
" +
"image and for the magenta-colored preview that is shown
" +
"when one of the maps is selected. Minimum value is 10.");
content.add(info, BorderLayout.NORTH);
JPanel bottom = new JPanel();
bottom.setLayout(new GridLayout(0,1,5,5));
JPanel p = new JPanel();
p.setAlignmentY(0);
p.add(new JLabel("Iteration count for the image = "));
p.add(input1);
bottom.add(p);
p = new JPanel();
p.setAlignmentY(0);
p.add(new JLabel("Iteration count for the preview = "));
p.add(input2);
bottom.add(p);
p = new JPanel();
p.setLayout(new FlowLayout(FlowLayout.RIGHT));
p.setAlignmentY(0);
p.add(cancelButton);
p.add(okButton);
bottom.add(p);
content.add(bottom,BorderLayout.CENTER);
content.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
pack();
Frame f = getFrameParent(owner);
if (f != null) {
setLocation(f.getX() + 20, f.getY() + 50);
}
}
private static Frame getFrameParent(JComponent comp) {
Container c = comp.getParent();
while (c != null && !(c instanceof Frame))
c = c.getParent();
return c == null? null : (Frame)c;
}
public void actionPerformed(ActionEvent evt) {
if (evt.getActionCommand().equals("Cancel"))
dispose();
else if (evt.getActionCommand().trim().equals("OK")) {
String text1 = input1.getText();
String text2 = input2.getText();
try {
int v1, v2;
try {
v1 = Integer.parseInt(text1);
}
catch (NumberFormatException e) {
throw new Exception("The value entered for the number of iterations\nin the image must be an integer.");
}
try {
v2 = Integer.parseInt(text2);
}
catch (NumberFormatException e) {
throw new Exception("The value entered for the number of iterations\nin the preview must be an integer.");
}
if (v1 < 10)
throw new Exception("The value entered for the number of iterations\nin the image must be 10 or greater.");
if (v2 < 10)
throw new Exception("The value entered for the number of iterations\nin the preview must be 10 or greater.");
dispose();
owner.setIterationCount(v1);
owner.setIterationsForPreview(v2);
}
catch (Exception e) {
JOptionPane.showMessageDialog(this, e.getMessage(), "Input Error", JOptionPane.ERROR_MESSAGE);
}
}
}
}