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 JPopupMenu popup;
  17         private JMenuItem popupRemove, popupProp, popupTransposeOctUp, popupTransposeOctDown;
  18         private Rectangle pitchRect, veloRect;
  19         private String notePitch, noteVelocity;
  20         private boolean selected = false;
  21         public Color textColor;
  22         public static final Color bgColor = new Color(160, 218, 255);
  23         public static final Color invBgColor = new Color(96, 38, 0);
  24
  25         /**
  26          * Creates a new note element.
  27          * @param parent        The MooTrackView that this element will be painted on.
  28          * @param mn    the note that will be graphically represented
  29          */
  30         public MooNoteElement (MooTrackView parent, MooNote mn) {
  31                 mtv = parent;
  32                 note = mn;
  33                 calculateString();
  34                 addMouseListener(new MAdapter());
  35                 setBorder(BorderFactory.createLineBorder(Color.black));
  36                 setBackground(bgColor);
  37                 textColor = Color.black;
  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                 popupRemove = new JMenuItem("Remove");
  50                 popupRemove.addActionListener(pList);
  51                 popup.add(popupRemove);
  52                 popupTransposeOctUp = new JMenuItem("Transpose one octave up");
  53                 popupTransposeOctUp.addActionListener(pList);
  54                 popup.add(popupTransposeOctUp);
  55                 popupTransposeOctDown = new JMenuItem("Transpose one octave down");
  56                 popupTransposeOctDown.addActionListener(pList);
  57                 popup.add(popupTransposeOctDown);
  58         }
  59
  60         /**
  61          * Returns the note of this element.
  62          * @return the note
  63          */
  64         public MooNote getNote() {
  65                 return note;
  66         }
  67
  68         /**
  69          * Selects the current NoteElement.
  70          */
  71         public void select() {
  72                 selected = true;
  73                 mtv.addSelected(this);
  74                 setBackground(invBgColor);
  75                 textColor = Color.white;
  76                 repaint();
  77         }
  78
  79         /**
  80          * Deselects the current NoteElement.
  81          */
  82         public void deselect() {
  83                 selected = false;
  84                 // mtv.removeSelected(this);
  85                 setBackground(bgColor);
  86                 textColor = Color.black;
  87                 repaint();
  88         }
  89
  90         /**
  91          * Draws the string that shows the note's properties.
  92          * @param g     The Graphics object used to draw the strings.
  93          */
  94         public void paintComponent(Graphics g)
  95         {
  96                 super.paintComponent(g);
  97                 if (!(g instanceof Graphics2D)) return;
  98                 Graphics2D g2 = (Graphics2D)g;
  99                 g2.setColor(textColor);
 100                 g2.setFont(new Font("Helvetica", Font.PLAIN, 8));
 101         /*
 102                 switch(columns) {
 103                         case 0:
 104                         case 1:
 105                         ...
 106                 }
 107         */
 108
 109                 g2.drawString(notePitch, 1, 8);
 110                 g2.drawString("" + noteVelocity, 21, 8);
 111         }
 112
 113         /**
 114          * Calculate what the string that shows the note properties should look like.
 115          */
 116         protected void calculateString(){
 117
 118                 noteVelocity = "";
 119                 notePitch = "";
 120                 if(note == null) return;
 121
 122                 int pitch = note.getPitch();
 123                 switch (pitch % 12) {
 124                         case  0: notePitch = "C";  break;
 125                         case  1: notePitch = "C#"; break;
 126                         case  2: notePitch = "D";  break;
 127                         case  3: notePitch = "D#"; break;
 128                         case  4: notePitch = "E";  break;
 129                         case  5: notePitch = "F";  break;
 130                         case  6: notePitch = "F#"; break;
 131                         case  7: notePitch = "G";  break;
 132                         case  8: notePitch = "G#"; break;
 133                         case  9: notePitch = "A";  break;
 134                         case 10: notePitch = "A#"; break;
 135                         case 11: notePitch = "B";  break;
 136                 }
 137                 notePitch += pitch / 12;
 138                 noteVelocity = ""+note.getVelocity();
 139         }
 140
 141
 142         /**
 143          * Asks the MooTrackView that the note element is painted on to remove this element and the note.
 144          */
 145         protected void remove(){
 146                 mtv.removeNote(this);
 147         }
 148
 149         /**
 150          * Listener that checks the mouse actions on this element.
 151          */
 152         class MAdapter extends MouseAdapter {
 153
 154                 /**
 155                  * If left mouse button is clicked, selects the note and plays it.
 156                  */
 157                 public void mouseClicked(MouseEvent e) {
 158                         if (SwingUtilities.isLeftMouseButton(e) && !e.isControlDown()) {
 159                                 select();
 160                                 // Play the note
 161                         }
 162                 }
 163
 164                 /**
 165                  * Checks if the mouse is pressed.
 166                  * Increases the pitch or velocity if the right mouse button is pressed while holding CTRL.
 167                  * Decreases the pitch or velocity if the left mouse button is pressed while holding CTRL.
 168                  * @param e the event recieved.
 169                  */
 170                 public void mousePressed(MouseEvent e) {
 171                         if (e.isControlDown()) {
 172                                 if (pitchRect.contains(e.getPoint())) {
 173                                         if (SwingUtilities.isRightMouseButton(e)) {
 174                                                 note.setPitch(note.getPitch() + 1);
 175                                         } else if (SwingUtilities.isLeftMouseButton(e)) {
 176                                                 note.setPitch(note.getPitch() - 1);
 177                                         }
 178                                         Moosique.setEdited();
 179                                         calculateString();
 180                                         repaint();
 181                                 } else if (veloRect.contains(e.getPoint())) {
 182                                         if (SwingUtilities.isRightMouseButton(e)) {
 183                                                 note.setVelocity(note.getVelocity() + 1);
 184                                         } else if (SwingUtilities.isLeftMouseButton(e)) {
 185                                                 note.setVelocity(note.getVelocity() - 1);
 186                                         }
 187                                         Moosique.setEdited();
 188                                         calculateString();
 189                                         repaint();
 190                                 }
 191                         } else maybeShowPopup(e);
 192                 }
 193
 194                 public void mouseReleased(MouseEvent e) {
 195                         maybeShowPopup(e);
 196                 }
 197
 198                 /**
 199                  * Shows the menu if an OS-specific popup-trigger was activated.
 200                  */
 201                 private void maybeShowPopup(MouseEvent e) {
 202                         if (e.isPopupTrigger() && !e.isControlDown()) {
 203                                 if (!selected || mtv.isTheOnlySelected((MooNoteElement)e.getComponent())) popup.show(e.getComponent(), e.getX(), e.getY());
 204                                 else mtv.showSelectionPopup(e.getComponent(), e.getX(), e.getY());
 205                         }
 206                 }
 207         }
 208
 209         /**
 210          * Listens on the actions made to the popupmenu.
 211          */
 212         class PopupListener implements ActionListener {
 213                 public void actionPerformed(ActionEvent e) {
 214                         Object source = e.getSource();
 215                         if (source == popupProp) {
 216                                 new MooDialog(note);
 217                         } else if (source == popupRemove) {
 218                                 remove();
 219                         } else if (source == popupTransposeOctUp) {
 220                                 note.setPitch(note.getPitch() + 12);
 221                                 update();
 222                         } else if (source == popupTransposeOctDown) {
 223                                 note.setPitch(note.getPitch() - 12);
 224                                 update();
 225                         }
 226                 }
 227
 228                 private void update() {
 229                         calculateString();
 230                         repaint();
 231                 }
 232         }
 233 }