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[moosique.git] / MooNoteElement.java
index f3b8ad041d69788524d8c92898f7bf79067952ac..8d8778d369e57a18b778f39734a9158644b50385 100644 (file)
 import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
 
-/*
+/**
  * Graphical representation of a MIDI note.
  * 
  * @author  Andersson, Andreen, Lanneskog, Pehrson
  * @version 1
  */
  
-public class MooNoteElement {
+public class MooNoteElement extends JPanel {
 
-       /* 
+       private MooTrackView mtv;
+       private MooNote note;
+       private boolean selected;
+       private Rectangle pitchRect, veloRect;
+       public static final Color bgColor = new Color(160, 218, 255);
+       private String notePitch;
+       private String noteVelocity;
+       private JPopupMenu popup;
+       private JMenuItem popupRemove, popupProp;
+
+       /** 
         * Creates a new note element.
+        * @param parent        The MooTrackView that this element will be painted on.
+        * @param mn    the note that will be graphically represented
+        */
+       public MooNoteElement (MooTrackView parent, MooNote mn) {
+               mtv = parent;
+               note = mn;
+               calculateString();
+               setBorder(BorderFactory.createLineBorder(Color.black));
+               setBackground(bgColor);
+               addMouseListener(new MAdapter());
+
+               // Defines coordinates.
+               pitchRect = new Rectangle(0, 0, 15, 10);
+               veloRect = new Rectangle(20, 0, 40, 10);
+
+               // Creates pop-up menu.
+               popup = new JPopupMenu();
+               PopupListener pList = new PopupListener();
+               popupProp = new JMenuItem("Preferences...");
+               popupProp.addActionListener(pList);
+               popup.add(popupProp);
+
+               popupRemove = new JMenuItem("Remove");
+               popupRemove.addActionListener(pList);
+               popup.add(popupRemove);
+
+       }
+
+       /** 
+        * Returns true if the current NoteElement is selected, otherwise false.
+        * @return if the element is selected
+        */
+       public boolean isSelected() {
+               return selected;
+       }
+
+       /** 
+        * Returns the note of this element.
+        * @return the note
+        */
+       public MooNote getNote() {
+               return note;
+       }
+
+       /** 
+        * Selects the current NoteElement.
+        * @param state if the element should be selected
+        */
+       public void setSelected(boolean state) {
+               selected = state;
+       }
+
+       /**
+        * Draws the string that shows the note's properties.
+        * @param g     The Graphics object used to draw the strings.
+        */
+       public void paintComponent(Graphics g)
+       {
+               super.paintComponent(g);
+               if (!(g instanceof Graphics2D)) return;
+               Graphics2D g2 = (Graphics2D)g;
+               g2.setFont(new Font("Helvetica", Font.PLAIN, 8));
+       /*
+               switch(columns) {
+                       case 0:
+                       case 1:
+                       ...
+               }
+       */
+               
+               g2.drawString(notePitch, 1, 8);
+               g2.drawString("" + noteVelocity, 21, 8);
+       }
+
+       /**
+        * Calculate what the string that shows the note properties should look like.
+        */
+       protected void calculateString(){
+
+               noteVelocity = ""; 
+               notePitch = "";
+               if(note == null) return;
+
+               int pitch = note.getPitch();
+               switch (pitch % 12) {
+                       case  0: notePitch = "C";  break;
+                       case  1: notePitch = "C#"; break;
+                       case  2: notePitch = "D";  break;
+                       case  3: notePitch = "D#"; break;
+                       case  4: notePitch = "E";  break;
+                       case  5: notePitch = "F";  break;
+                       case  6: notePitch = "F#"; break;
+                       case  7: notePitch = "G";  break;
+                       case  8: notePitch = "G#"; break;
+                       case  9: notePitch = "A";  break;
+                       case 10: notePitch = "A#"; break;
+                       case 11: notePitch = "B";  break;
+               }
+               notePitch += pitch / 12;
+               noteVelocity = ""+note.getVelocity();
+       }
+
+       /**
+        * Listener that checks the mouse actions on this element.
+        */
+       class MAdapter extends MouseAdapter {
+       
+               public void mouseClicked(MouseEvent e) {
+                       
+               }
+
+               /**
+                * Checks if the mouse is pressed.
+                * Pops up the menu if right mousebutton is used.
+                * Increases the pitch or velocity if the right mousebutton is pressed while holding ctrl down.
+                * Decreases the pitch or velocity if the left mousebutton is pressed while holding ctrl down.
+                * @param e The events recieved.
+                */
+               public void mousePressed(MouseEvent e) {
+                       if (e.isControlDown()) {
+                               if (pitchRect.contains(e.getPoint())) {
+                                       if (SwingUtilities.isRightMouseButton(e)) {
+                                               note.setPitch(note.getPitch() + 1);
+                                       } else if (SwingUtilities.isLeftMouseButton(e)) {
+                                               note.setPitch(note.getPitch() - 1);
+                                       }
+                                       calculateString();
+                               } else if (veloRect.contains(e.getPoint())) {
+                                       if (SwingUtilities.isRightMouseButton(e)) {
+                                               note.setVelocity(note.getVelocity() + 1);
+                                       } else if (SwingUtilities.isLeftMouseButton(e)) {
+                                               note.setVelocity(note.getVelocity() - 1);
+                                       }
+                                       calculateString();
+                               }
+                               e.getComponent().repaint();
+                       } else if (e.isPopupTrigger()) {
+                               popup.show(e.getComponent(), e.getX(), e.getY());
+                       }
+               }
+       }
+
+       /**
+        * Listens on the actions made to the popupmenu.
         */
-       public MooNoteElement () {
+       class PopupListener implements ActionListener {
+               public void actionPerformed(ActionEvent e) {
+                       Object source = e.getSource();
+                       if  (source == popupProp) {
+                               new MooDialog(note);
+                       } else if  (source == popupRemove) {
+                               remove();
+                       }
+               }
+       }
 
+       /**
+        * Asks the MooTrackView that it's painted on to remove this element and the note.
+        */
+       protected void remove(){
+               mtv.removeNote(this);
        }
+
 }