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 int columns;
  17         private boolean selected;
  18         private Rectangle pitchRect, veloRect;
  19         public static final Color bgColor = new Color(160, 218, 255);
  20         private String notePitch;
  21         private String noteVelocity;
  22         private JPopupMenu popup;
  23         private JMenuItem popupRemove, popupProp;
  24
  25         /**
  26          * Creates a new note element.
  27          * @param mn    the note that will be graphically represented
  28          * @param rows  the number of rows that the note will occupy
  29          */
  30         public MooNoteElement (MooTrackView parent, MooNote mn) {
  31                 mtv = parent;
  32                 note = mn;
  33                 calculateString();
  34                 columns = mn.getDuration() / (Moosique.getSequence().getResolution() / 4);
  35                 setBorder(BorderFactory.createLineBorder(Color.black));
  36                 setBackground(bgColor);
  37                 addMouseListener(new MAdapter());
  38
  39                 // Defines coordinates.
  40                 pitchRect = new Rectangle(0, 0, 15, 10);
  41                 veloRect = new Rectangle(20, 0, 40, 10);
  42
  43                 // Creates pop-up menu.
  44                 popup = new JPopupMenu();
  45                 PopupListener pList = new PopupListener();
  46                 popupProp = new JMenuItem("Preferences...");
  47                 popupProp.addActionListener(pList);
  48                 popup.add(popupProp);
  49
  50                 popupRemove = new JMenuItem("Remove");
  51                 popupRemove.addActionListener(pList);
  52                 popup.add(popupRemove);
  53
  54         }
  55
  56         /**
  57          * Returns true if the current NoteElement is selected, otherwise false.
  58          * @return if the element is selected
  59          */
  60         public boolean isSelected() {
  61                 return selected;
  62         }
  63
  64         /**
  65          * Selects the current NoteElement.
  66          * @param state if the element should be selected
  67          */
  68         public void setSelected(boolean state) {
  69                 selected = state;
  70         }
  71
  72         /**
  73          *
  74          */
  75         public void paintComponent(Graphics g)
  76         {
  77                 super.paintComponent(g);
  78                 if (!(g instanceof Graphics2D)) return;
  79                 Graphics2D g2 = (Graphics2D)g;
  80                 g2.setFont(new Font("Helvetica", Font.PLAIN, 8));
  81         /*
  82                 switch(columns) {
  83                         case 0:
  84                         case 1:
  85                         ...
  86                 }
  87         */
  88
  89                 g2.drawString(notePitch, 1, 9);
  90                 g2.drawString("" + noteVelocity, 21, 9);
  91         }
  92
  93         protected void calculateString(){
  94
  95                 noteVelocity = "";
  96                 notePitch = "";
  97                 if(note == null) return;
  98
  99                 int pitch = note.getPitch();
 100                 switch (pitch % 12) {
 101                         case  0: notePitch = "C";  break;
 102                         case  1: notePitch = "C#"; break;
 103                         case  2: notePitch = "D";  break;
 104                         case  3: notePitch = "D#"; break;
 105                         case  4: notePitch = "E";  break;
 106                         case  5: notePitch = "F";  break;
 107                         case  6: notePitch = "F#"; break;
 108                         case  7: notePitch = "G";  break;
 109                         case  8: notePitch = "G#"; break;
 110                         case  9: notePitch = "A";  break;
 111                         case 10: notePitch = "A#"; break;
 112                         case 11: notePitch = "B";  break;
 113                 }
 114                 notePitch += pitch / 12;
 115                 noteVelocity = ""+note.getVelocity();
 116         }
 117
 118         class MAdapter extends MouseAdapter {
 119                 public void mousePressed(MouseEvent e) {
 120                         if (e.isControlDown()) {
 121                                 if (pitchRect.contains(e.getPoint())) {
 122                                         if (SwingUtilities.isRightMouseButton(e)) {
 123                                                 note.setPitch(note.getPitch() + 1);
 124                                         } else if (SwingUtilities.isLeftMouseButton(e)) {
 125                                                 note.setPitch(note.getPitch() - 1);
 126                                         }
 127                                         calculateString();
 128                                 } else if (veloRect.contains(e.getPoint())) {
 129                                         if (SwingUtilities.isRightMouseButton(e)) {
 130                                                 note.setVelocity(note.getVelocity() + 1);
 131                                         } else if (SwingUtilities.isLeftMouseButton(e)) {
 132                                                 note.setVelocity(note.getVelocity() - 1);
 133                                         }
 134                                         calculateString();
 135                                 }
 136                                 e.getComponent().repaint();
 137                         }
 138                         if (e.isPopupTrigger()) {
 139                                 popup.show(e.getComponent(), e.getX(), e.getY());
 140                         }
 141                 }
 142         }
 143
 144         class PopupListener implements ActionListener {
 145                 public void actionPerformed(ActionEvent e) {
 146                         Object source = e.getSource();
 147                         if  (source == popupProp) {
 148                                 new MooDialog(note);
 149                         } else if  (source == popupRemove) {
 150                                 mtv.remove((MooNoteElement)((JComponent)e.getSource()).getParent().getParent());
 151                         }
 152                 }
 153         }
 154 }