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 int columns;
  16         private boolean selected;
  17         public static final Color bgColor = new Color(160, 218, 255);
  18
  19         /**
  20          * Creates a new note element.
  21          * @param mn    the note that will be graphically represented
  22          * @param rows  the number of rows that the note will occupy
  23          */
  24         public MooNoteElement (MooNote mn) {
  25                 note = mn;
  26                 columns = mn.getDuration() / 24;
  27                 setBorder(BorderFactory.createLineBorder(Color.black));
  28                 setBackground(bgColor);
  29         }
  30
  31         /**
  32          * Returns true if the current NoteElement is selected, otherwise false.
  33          * @return if the element is selected
  34          */
  35         public boolean isSelected() {
  36                 return selected;
  37         }
  38
  39         /**
  40          * Selects the current NoteElement.
  41          * @param state if the element should be selected
  42          */
  43         public void setSelected(boolean state) {
  44                 selected = state;
  45         }
  46
  47         /**
  48          *
  49          */
  50         public void paintComponent(Graphics g)
  51         {
  52                 super.paintComponent(g);
  53
  54                 if (note == null || !(g instanceof Graphics2D)) return;
  55                 Graphics2D g2 = (Graphics2D)g;
  56
  57                 String n = "";
  58                 int pitch = note.getPitch();
  59                 switch (pitch % 12) {
  60                         case 0: n = "C"; break;
  61                         case 1: n = "C#"; break;
  62                         case 2: n = "D"; break;
  63                         case 3: n = "D#"; break;
  64                         case 4: n = "E"; break;
  65                         case 5: n = "F"; break;
  66                         case 6: n = "F#"; break;
  67                         case 7: n = "G"; break;
  68                         case 8: n ="G#"; break;
  69                         case 9: n = "A"; break;
  70                         case 10: n = "A#"; break;
  71                         case 11: n = "B"; break;
  72                 }
  73
  74         /*
  75                 switch(columns) {
  76                         case 0:
  77                         case 1:
  78                         ...
  79                 }
  80         */
  81
  82                 g2.setFont(new Font("Helvetica", Font.PLAIN, 8));
  83                 n = n +(pitch/12);
  84                 g2.drawString(n + " "+ note.getVelocity(), 1, 9);
  85         }
  86 }