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         private Rectangle pitchRect, veloRect;
  18         public static final Color bgColor = new Color(160, 218, 255);
  19
  20         /**
  21          * Creates a new note element.
  22          * @param mn    the note that will be graphically represented
  23          * @param rows  the number of rows that the note will occupy
  24          */
  25         public MooNoteElement (MooNote mn) {
  26                 note = mn;
  27                 columns = mn.getDuration() / (Moosique.getSequence().getResolution() / 4);
  28                 setBorder(BorderFactory.createLineBorder(Color.black));
  29                 setBackground(bgColor);
  30                 addMouseListener(new MAdapter());
  31
  32                 pitchRect = new Rectangle(0, 0, 15, 10);
  33                 veloRect = new Rectangle(20, 0, 40, 10);
  34         }
  35
  36         /**
  37          * Returns true if the current NoteElement is selected, otherwise false.
  38          * @return if the element is selected
  39          */
  40         public boolean isSelected() {
  41                 return selected;
  42         }
  43
  44         /**
  45          * Selects the current NoteElement.
  46          * @param state if the element should be selected
  47          */
  48         public void setSelected(boolean state) {
  49                 selected = state;
  50         }
  51
  52         /**
  53          *
  54          */
  55         public void paintComponent(Graphics g)
  56         {
  57                 super.paintComponent(g);
  58                 if (note == null || !(g instanceof Graphics2D)) return;
  59                 Graphics2D g2 = (Graphics2D)g;
  60                 g2.setFont(new Font("Helvetica", Font.PLAIN, 8));
  61
  62                 String n = "";
  63                 int pitch = note.getPitch();
  64                 switch (pitch % 12) {
  65                         case  0: n = "C";  break;
  66                         case  1: n = "C#"; break;
  67                         case  2: n = "D";  break;
  68                         case  3: n = "D#"; break;
  69                         case  4: n = "E";  break;
  70                         case  5: n = "F";  break;
  71                         case  6: n = "F#"; break;
  72                         case  7: n = "G";  break;
  73                         case  8: n = "G#"; break;
  74                         case  9: n = "A";  break;
  75                         case 10: n = "A#"; break;
  76                         case 11: n = "B";  break;
  77                 }
  78                 n += pitch / 12;
  79
  80         /*
  81                 switch(columns) {
  82                         case 0:
  83                         case 1:
  84                         ...
  85                 }
  86         */
  87
  88                 g2.drawString(n, 1, 9);
  89                 g2.drawString("" + note.getVelocity(), 21, 9);
  90         }
  91
  92         class MAdapter extends MouseAdapter {
  93                 public void mouseClicked(MouseEvent e) {
  94                         if (pitchRect.contains(e.getPoint())) {
  95                                 if (SwingUtilities.isRightMouseButton(e)) {
  96                                         note.setPitch(note.getPitch() + 1);
  97                                 } else if (SwingUtilities.isLeftMouseButton(e)) {
  98                                         note.setPitch(note.getPitch() - 1);
  99                                 }
 100                         } else if (veloRect.contains(e.getPoint())) {
 101                                 if (SwingUtilities.isRightMouseButton(e)) {
 102                                         note.setVelocity(note.getVelocity() + 1);
 103                                 } else if (SwingUtilities.isLeftMouseButton(e)) {
 104                                         note.setVelocity(note.getVelocity() - 1);
 105                                 }
 106                         }
 107                         e.getComponent().repaint();
 108                 }
 109
 110                 public void mousePressed(MouseEvent e) {}
 111
 112                 public void mouseReleased(MouseEvent e) {}
 113         }
 114 }