MooNoteElement.java

   1 import javax.swing.*;
   2 import java.awt.*;
   3 import java.awt.event.*;
   4
   5 /**
   6  * Graphical representation of a MIDI note.
   7  *
   8  * @author  Andersson, Andreen, Lanneskog, Pehrson
   9  * @version 1
  10  */
  11
  12 public class MooNoteElement extends JPanel {
  13
  14         private MooNote note;
  15         private boolean selected;
  16
  17         /**
  18          * Creates a new note element.
  19          * @param mn The note that will be graphically represented
  20          */
  21         public MooNoteElement (MooNote mn) {
  22                 note = mn;
  23         }
  24
  25         /**
  26          * Returns true if the current NoteElement is selected, otherwise false.
  27          * @return if the element is selected
  28          */
  29         public boolean isSelected() {
  30                 return selected;
  31         }
  32
  33         /**
  34          * Selects the current NoteElement.
  35          * @param state if the element should be selected
  36          */
  37         public void setSelected(boolean state) {
  38                 selected = state;
  39         }
  40
  41         /**
  42          *
  43          */
  44         public void paintComponent(Graphics g)
  45         {
  46                 super.paintComponent(g);
  47
  48                 if (note == null)
  49                         return;
  50
  51                 if (!(g instanceof Graphics2D))
  52                         return;
  53                 Graphics2D g2 = (Graphics2D)g;
  54
  55                 String n = "";
  56                 int pitch = note.getPitch();
  57                 switch( pitch % 12)
  58                 {
  59                         case 0: n = "C"; break;
  60                         case 1: n = "C#"; break;
  61                         case 2: n = "D"; break;
  62                         case 3: n = "D#"; break;
  63                         case 4: n = "E"; break;
  64                         case 5: n = "F"; break;
  65                         case 6: n = "F#"; break;
  66                         case 7: n = "G"; break;
  67                         case 8: n ="G#"; break;
  68                         case 9: n = "A"; break;
  69                         case 10: n = "A#"; break;
  70                         case 11: n = "B"; break;
  71                 }
  72                 g2.setFont(new Font("Helvetica", Font.PLAIN, 10));
  73                 n = n +(pitch/12);
  74                 g2.drawString(n, 1, 11);
  75                 g2.drawString(""+note.getVelocity(),1,23);
  76
  77         }
  78
  79 }