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 MooTrackView mtv;
  15         private MooNote note;
  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         private JPopupMenu popup;
  22         private JMenuItem popupRemove, popupProp;
  23
  24         /**
  25          * Creates a new note element.
  26          * @param mn    the note that will be graphically represented
  27          * @param rows  the number of rows that the note will occupy
  28          */
  29         public MooNoteElement (MooTrackView parent, MooNote mn) {
  30                 mtv = parent;
  31                 note = mn;
  32                 calculateString();
  33                 setBorder(BorderFactory.createLineBorder(Color.black));
  34                 setBackground(bgColor);
  35                 addMouseListener(new MAdapter());
  36
  37                 // Defines coordinates.
  38                 pitchRect = new Rectangle(0, 0, 15, 10);
  39                 veloRect = new Rectangle(20, 0, 40, 10);
  40
  41                 // Creates pop-up menu.
  42                 popup = new JPopupMenu();
  43                 PopupListener pList = new PopupListener();
  44                 popupProp = new JMenuItem("Preferences...");
  45                 popupProp.addActionListener(pList);
  46                 popup.add(popupProp);
  47
  48                 popupRemove = new JMenuItem("Remove");
  49                 popupRemove.addActionListener(pList);
  50                 popup.add(popupRemove);
  51
  52         }
  53
  54         /**
  55          * Returns true if the current NoteElement is selected, otherwise false.
  56          * @return if the element is selected
  57          */
  58         public boolean isSelected() {
  59                 return selected;
  60         }
  61
  62         /**
  63          * Selects the current NoteElement.
  64          * @param state if the element should be selected
  65          */
  66         public void setSelected(boolean state) {
  67                 selected = state;
  68         }
  69
  70         /**
  71          *
  72          */
  73         public void paintComponent(Graphics g)
  74         {
  75                 super.paintComponent(g);
  76                 if (!(g instanceof Graphics2D)) return;
  77                 Graphics2D g2 = (Graphics2D)g;
  78                 g2.setFont(new Font("Helvetica", Font.PLAIN, 8));
  79         /*
  80                 switch(columns) {
  81                         case 0:
  82                         case 1:
  83                         ...
  84                 }
  85         */
  86
  87                 g2.drawString(notePitch, 1, 9);
  88                 g2.drawString("" + noteVelocity, 21, 9);
  89         }
  90
  91         protected void calculateString(){
  92
  93                 noteVelocity = "";
  94                 notePitch = "";
  95                 if(note == null) return;
  96
  97                 int pitch = note.getPitch();
  98                 switch (pitch % 12) {
  99                         case  0: notePitch = "C";  break;
 100                         case  1: notePitch = "C#"; break;
 101                         case  2: notePitch = "D";  break;
 102                         case  3: notePitch = "D#"; break;
 103                         case  4: notePitch = "E";  break;
 104                         case  5: notePitch = "F";  break;
 105                         case  6: notePitch = "F#"; break;
 106                         case  7: notePitch = "G";  break;
 107                         case  8: notePitch = "G#"; break;
 108                         case  9: notePitch = "A";  break;
 109                         case 10: notePitch = "A#"; break;
 110                         case 11: notePitch = "B";  break;
 111                 }
 112                 notePitch += pitch / 12;
 113                 noteVelocity = ""+note.getVelocity();
 114         }
 115
 116         public MooNote getNote(){
 117                 return note;
 118         }
 119
 120         class MAdapter extends MouseAdapter {
 121                 public void mousePressed(MouseEvent e) {
 122                         if (e.isControlDown()) {
 123                                 if (pitchRect.contains(e.getPoint())) {
 124                                         if (SwingUtilities.isRightMouseButton(e)) {
 125                                                 note.setPitch(note.getPitch() + 1);
 126                                         } else if (SwingUtilities.isLeftMouseButton(e)) {
 127                                                 note.setPitch(note.getPitch() - 1);
 128                                         }
 129                                         calculateString();
 130                                 } else if (veloRect.contains(e.getPoint())) {
 131                                         if (SwingUtilities.isRightMouseButton(e)) {
 132                                                 note.setVelocity(note.getVelocity() + 1);
 133                                         } else if (SwingUtilities.isLeftMouseButton(e)) {
 134                                                 note.setVelocity(note.getVelocity() - 1);
 135                                         }
 136                                         calculateString();
 137                                 }
 138                                 e.getComponent().repaint();
 139                         } else if (e.isPopupTrigger()) {
 140                                 popup.show(e.getComponent(), e.getX(), e.getY());
 141                         }
 142                 }
 143         }
 144
 145         class PopupListener implements ActionListener {
 146                 public void actionPerformed(ActionEvent e) {
 147                         Object source = e.getSource();
 148                         if  (source == popupProp) {
 149                                 new MooDialog(note);
 150                         } else if  (source == popupRemove) {
 151                                 remove();
 152                         }
 153                 }
 154         }
 155
 156         protected void remove(){
 157                 mtv.removeNote(this, note);
 158         }
 159
 160 }