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         private String notePitch;
  20         private String noteVelocity;
  21
  22         /**
  23          * Creates a new note element.
  24          * @param mn    the note that will be graphically represented
  25          * @param rows  the number of rows that the note will occupy
  26          */
  27         public MooNoteElement (MooNote mn) {
  28                 note = mn;
  29                 calculateString();
  30                 columns = mn.getDuration() / (Moosique.getSequence().getResolution() / 4);
  31                 setBorder(BorderFactory.createLineBorder(Color.black));
  32                 setBackground(bgColor);
  33                 addMouseListener(new MAdapter());
  34
  35                 pitchRect = new Rectangle(0, 0, 15, 10);
  36                 veloRect = new Rectangle(20, 0, 40, 10);
  37         }
  38
  39         /**
  40          * Returns true if the current NoteElement is selected, otherwise false.
  41          * @return if the element is selected
  42          */
  43         public boolean isSelected() {
  44                 return selected;
  45         }
  46
  47         /**
  48          * Selects the current NoteElement.
  49          * @param state if the element should be selected
  50          */
  51         public void setSelected(boolean state) {
  52                 selected = state;
  53         }
  54
  55         /**
  56          *
  57          */
  58         public void paintComponent(Graphics g)
  59         {
  60                 super.paintComponent(g);
  61                 if (!(g instanceof Graphics2D)) return;
  62                 Graphics2D g2 = (Graphics2D)g;
  63                 g2.setFont(new Font("Helvetica", Font.PLAIN, 8));
  64         /*
  65                 switch(columns) {
  66                         case 0:
  67                         case 1:
  68                         ...
  69                 }
  70         */
  71
  72                 g2.drawString(notePitch, 1, 9);
  73                 g2.drawString("" + noteVelocity, 21, 9);
  74         }
  75
  76         protected void calculateString(){
  77
  78                 noteVelocity = "";
  79                 notePitch = "";
  80                 if(note == null) return;
  81
  82                 int pitch = note.getPitch();
  83                 switch (pitch % 12) {
  84                         case  0: notePitch = "C";  break;
  85                         case  1: notePitch = "C#"; break;
  86                         case  2: notePitch = "D";  break;
  87                         case  3: notePitch = "D#"; break;
  88                         case  4: notePitch = "E";  break;
  89                         case  5: notePitch = "F";  break;
  90                         case  6: notePitch = "F#"; break;
  91                         case  7: notePitch = "G";  break;
  92                         case  8: notePitch = "G#"; break;
  93                         case  9: notePitch = "A";  break;
  94                         case 10: notePitch = "A#"; break;
  95                         case 11: notePitch = "B";  break;
  96                 }
  97                 notePitch += pitch / 12;
  98                 noteVelocity = ""+note.getVelocity();
  99         }
 100
 101         class MAdapter extends MouseAdapter {
 102                 public void mouseClicked(MouseEvent e) {
 103                         if (pitchRect.contains(e.getPoint())) {
 104                                 if (SwingUtilities.isRightMouseButton(e)) {
 105                                         note.setPitch(note.getPitch() + 1);
 106                                 } else if (SwingUtilities.isLeftMouseButton(e)) {
 107                                         note.setPitch(note.getPitch() - 1);
 108                                 }
 109                                 calculateString();
 110                         } else if (veloRect.contains(e.getPoint())) {
 111                                 if (SwingUtilities.isRightMouseButton(e)) {
 112                                         note.setVelocity(note.getVelocity() + 1);
 113                                 } else if (SwingUtilities.isLeftMouseButton(e)) {
 114                                         note.setVelocity(note.getVelocity() - 1);
 115                                 }
 116                                 calculateString();
 117                         }
 118                         e.getComponent().repaint();
 119                 }
 120
 121                 public void mousePressed(MouseEvent e) {}
 122
 123                 public void mouseReleased(MouseEvent e) {}
 124         }
 125 }