m@0: /*=============================================================================
m@0:  * File:       InstructionsPanel.java
m@0:  * Author:     Marcus Pearce <m.pearce@gold.ac.uk>
m@0:  * Created:    <2007-12-05 10:57:31 marcusp>
m@0:  * Time-stamp: <2007-12-14 16:29:55 marcusp>
m@0:  *=============================================================================
m@0:  */
m@0: 
m@0: import java.awt.*;
m@0: import java.awt.event.*;
m@0: import javax.swing.*;
m@0: import javax.swing.text.*;
m@0: import java.io.*;
jeremy@37: import java.util.regex.Pattern;
m@0: 
m@0: public class InstructionsPanel extends JPanel { 
m@0: 
m@0:     /* invalid subject id */ 
jeremy@37:     public static final String INVALID_SUBJECT_ID = "----"; 
m@0: 
m@0:     /* variables */ 
m@0:     private ExperimentGui gui; 
m@0:     private JTextField subjectIDField; 
m@0:     private JButton nextButton = new JButton(); 
m@0:     
m@0:     /* accessors */ 
m@0:     public JButton getNextButton() { return nextButton; }
m@0:     
m@0:     /* constructor */ 
m@0:     public InstructionsPanel (ExperimentGui eg) { 
m@0: 
m@0:         gui = eg; 
m@0:         Experiment exp = gui.getExperiment(); 
m@0:         
m@0:         String file = exp.getInstructionsFile(); 
m@0:         JScrollPane instructionsPane = createInstructionsPane(file); 
m@0: 
m@0:         JLabel label = new JLabel("Participant ID: ");
m@0:         subjectIDField = new JTextField(10);
m@0: 
m@0:         nextButton = new JButton("Continue"); 
m@0: 
m@0:         JPanel subjectIDPane = new JPanel(); 
m@0:         subjectIDPane.add(label);
m@0:         subjectIDPane.add(subjectIDField); 
m@0:         subjectIDPane.add(nextButton); 
m@0: 
m@0:         this.setLayout (new BorderLayout());
m@0:         this.add(instructionsPane, BorderLayout.CENTER); 
m@0:         this.add(subjectIDPane, BorderLayout.SOUTH);
m@0:     }
m@0: 
m@0:     /* methods */ 
m@0: 
jeremy@37:     public String getSubjectID() {
jeremy@37: 	String subjID = subjectIDField.getText();
jeremy@37: 	Pattern nonAlphaNum = Pattern.compile("[^a-zA-Z0-9]");
jeremy@37: 	
jeremy@37: 	if (nonAlphaNum.matcher(subjID).find()) {
m@0:             subjID = INVALID_SUBJECT_ID; 
m@0:         }
jeremy@37: 
m@0:         return subjID; 
m@0:     }
m@0:     
m@0:     private JScrollPane createInstructionsPane(String instructionsFile) {
m@0:         
m@0:         JEditorPane editorPane = new JEditorPane();
m@0: 
m@0:         try { 
m@0:             FileReader reader = new FileReader(new File(instructionsFile)); 
m@0:             editorPane.setEditable(false);
m@0:             editorPane.setContentType("text/html");
m@0:             editorPane.read(reader, null);
m@0:         } catch (Exception e) { 
m@0:             System.out.println(e.getMessage());
m@0:         }
m@0:         
m@0:         JScrollPane editorScrollPane = new JScrollPane(editorPane);
m@0:         editorScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
m@0:         editorScrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
m@0: 
m@0:         editorScrollPane.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("Instructions"), BorderFactory.createEmptyBorder(5,5,5,5)));
m@0:         editorScrollPane.setPreferredSize(new Dimension(300, 250));
m@0:         editorScrollPane.setMinimumSize(new Dimension(10, 10));
m@0:         return editorScrollPane;
m@0:     }
m@0: 
m@0:     public void addNextButtonListener(ActionListener al) { 
m@0:         nextButton.addActionListener(al); 
m@0:     }
m@0: }