]> ruin.nu Git - moosique.git/blobdiff - MooTrackView.java
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[moosique.git] / MooTrackView.java
index 854cfec806308b0680360ea5a0f41c1999b4301a..f2afcaae2be4e18373b97a3250d4cfe5ce7b29e0 100644 (file)
@@ -14,18 +14,33 @@ import java.util.*;
 public class MooTrackView extends JPanel {
 
        private Track track;
+       private MooTrackTitle title;
        private Rectangle box;
 
-       private JPopupMenu popup;
-       private JMenuItem menuItem;
+       private JPopupMenu popup, selPopup;
+       private JMenu selPopupTranspUp, selPopupTranspDown;
+       private JMenuItem popupAdd;
+       private JMenuItem selPopupRemove, selPopupTranspUpOct, selPopupTranspDownOct;
+
        private ArrayList rects;
+       private ArrayList selected;
+       private Insets insets;
+       private int ticksPerSixteenth, popupY = 0;
        protected static int viewLength = 0;
        protected static int extraHeight = 0;
        public static final int NOTE_HEIGHT = 10, NOTE_WIDTH = 40, VIEW_WIDTH = 200;
 
-       public MooTrackView (Track track) {
+       /**
+        * Creates the trackview.
+        * @param track The track it represents graphically and operates on.
+        * @param title The object that is used to manipulate instrument, channel, solo, mute.
+        */
+       public MooTrackView (Track track, MooTrackTitle title) {
                super(true);
                this.track = track;
+               this.title = title;
+               insets = getInsets();
+               selected = new ArrayList();
 
                // Configures panel
                setBackground(Color.white);
@@ -52,19 +67,40 @@ public class MooTrackView extends JPanel {
                        setPreferredSize(new Dimension(VIEW_WIDTH, viewLength + extraHeight));
 
                }
-               validate();
 
-               // Creates pop-up menu.
+               // Creates panel pop-up menu.
                popup = new JPopupMenu();
-               menuItem = new JMenuItem("Add note...");
-               // menuItem.addActionListener();
-               popup.add(menuItem);
+               PopupListener pList = new PopupListener();
+               popupAdd = new JMenuItem("Add note...");
+               popupAdd.addActionListener(pList);
+               popup.add(popupAdd);
+
+               // Creates selection pop-up menu.
+               selPopup = new JPopupMenu();
+               selPopupRemove = new JMenuItem("Remove selection");
+               selPopupRemove.addActionListener(pList);
+               selPopup.add(selPopupRemove);
+               selPopupTranspUp = new JMenu("Transpose selection up");
+               selPopup.add(selPopupTranspUp);
+               selPopupTranspUpOct = new JMenuItem("One octave");
+               selPopupTranspUpOct.addActionListener(pList);
+               selPopupTranspUp.add(selPopupTranspUpOct);
+               selPopupTranspDown = new JMenu("Transpose selection down");
+               selPopup.add(selPopupTranspDown);
+               selPopupTranspDownOct = new JMenuItem("One octave");
+               selPopupTranspDownOct.addActionListener(pList);
+               selPopupTranspDown.add(selPopupTranspDownOct);
 
                // Adds listeners for popup menu and keyboard synthesizer.
                addMouseListener(new MAdapter());
                addKeyListener(new MooKeyboard());
        }
 
+       /**
+        * Layouts the element to the right place.
+        * @param elem  the element that will be layouted.
+        * @param old   If true, this method will remove the old layout and set the new preferredSize for the trackview.
+        */
        public void layoutElement(MooNoteElement elem, boolean old){
                // If the element is currently in the view, removes its coordinates from the list.
                Rectangle r = new Rectangle();
@@ -80,9 +116,8 @@ public class MooTrackView extends JPanel {
                }
 
                // Creates temporary variables.
-               int ticksPerSixteenth = Moosique.getSequence().getResolution() / 4;
+               ticksPerSixteenth = Moosique.getSequence().getResolution() / 4;
                MooNote mn = elem.getNote();
-               Insets insets = getInsets();
                int x, y, height;
 
                // Calculates coordinates.
@@ -100,21 +135,29 @@ public class MooTrackView extends JPanel {
                        viewLength = y + height;
                        if(old)setPreferredSize(new Dimension(VIEW_WIDTH, viewLength + extraHeight));
                }
-
+               if(old)repaint();
        }
 
+       /** 
+        * Returns the track of this view.
+        * @return the track of this view
+        */
        public Track getTrack() {
                return track;
        }
 
-
        /** 
-        * Updates the track view.
+        * Returns the title of this view.
+        * @return the title of this view
         */
-       public void update(long tickPosition) {
-               repaint();
+       public MooTrackTitle getTitle() {
+               return title;
        }
 
+       /**
+        * Checks if the element can be fully drawn as this position without inteferring with other elements.
+        * @return true if the position is occupied.
+        */
        private boolean isOccupied(Rectangle r) {
                Iterator it = rects.iterator();
                while (it.hasNext()) {
@@ -123,13 +166,106 @@ public class MooTrackView extends JPanel {
                return false;
        }
        
-       public void remove(MooNoteElement elem) {
-               remove((Component)elem);
+       /** 
+        * Adds the given note to the current track, and visualises it.
+        * @param mn    the note to add
+        */
+       public void addNote(MooNote mn) {
+               mn.addTo(track);
+               MooNoteElement elem = new MooNoteElement(this, mn);
+               add(elem);
+               layoutElement(elem, false);
+               setPreferredSize(new Dimension(VIEW_WIDTH, viewLength + extraHeight));
+               Moosique.setEdited();
+               repaint();
+       }
+
+       /**
+        * Adds a standard note to this track.
+        */
+       private void addStandardNote() {
+               int row =  (popupY - insets.top) / NOTE_HEIGHT;
+               long timestamp = (long)(ticksPerSixteenth * row);
+               addNote(new MooNote(title.getChannel(), 60, 100, timestamp, Moosique.getSequence().getResolution() / 4));
+       }
+
+       /** 
+        * Removes the given note element from the view and its note from the current track.
+        * @param elem  the note element to remove
+        */
+       public void removeNote(MooNoteElement elem) {
                elem.getNote().removeFrom(track);
-               validate();
+               remove(elem);
+               Rectangle r = new Rectangle();
+               r = elem.getBounds(r);
+               rects.remove(r);
+               Moosique.setEdited();
                repaint();
        }
 
+       /**
+        * Deselects all notes.
+        */
+       public void selectNote(MooNoteElement elem) {
+               selected.add(elem);
+       }
+
+       /**
+        * Deselects all notes.
+        */
+       public void deselectNote(MooNoteElement elem) {
+               selected.remove(selected.indexOf(elem));
+       }
+
+       /**
+        * Deselects all notes.
+        */
+       public void deselectAllNotes() {
+               Iterator it = selected.iterator();
+               while(it.hasNext()) {
+                       ((MooNoteElement)it.next()).deselect();
+               }
+               selected.clear();
+       }
+
+       /**
+        * Determines if the given MooNoteElement is the only one in the track view that is selected.
+        * @return if the given element is the only selected one
+        */
+       public boolean isTheOnlySelected(MooNoteElement elem) {
+               Iterator it = selected.iterator();
+               while(it.hasNext()) {
+                       if (!it.next().equals(elem)) return false;
+               }
+               return true;
+       }
+
+       /**
+        * Shows a popup-menu with options for the current selection of note elements.
+        * @param c     the component over which to display the menu
+        * @param x     the x-coordinate in which to display the menu
+        * @param y     the y-coordinate in which to display the menu
+        */
+       public void showSelectionPopup(Component c, int x, int y) {
+               selPopup.show(c, x, y);
+       }
+
+       /**
+        * Transposes all selected notes the given number of halftones.
+        */
+       private void transposeSelectedNotes(int halftones) {
+               Iterator it = selected.iterator();
+               while(it.hasNext()) {
+                       MooNoteElement elem = (MooNoteElement)it.next();
+                       elem.getNote().transpose(halftones);
+                       elem.update();
+               }
+       }
+
+       /**
+        * Draws the grid that is on the background.
+        * @param g The Graphics object used to draw the grid.
+        */
        public void paintComponent(Graphics g) {
                super.paintComponent(g);
                Graphics2D g2 = (Graphics2D)g;
@@ -141,16 +277,78 @@ public class MooTrackView extends JPanel {
                        }
                }
        }
-
+       
+       /**
+        * The adapter used to listen on mouse actions
+        */
        class MAdapter extends MouseAdapter {
+
+               /**
+                * Deselects all note on click, adds a standard note on double click.
+                */
+               public void mouseClicked(MouseEvent e) {
+                       if (SwingUtilities.isLeftMouseButton(e)) {
+                               deselectAllNotes();
+                               if (e.getClickCount() == 2) {
+                                       popupY = e.getY();
+                                       addStandardNote();
+                               }
+                       }
+               }
+       
                public void mousePressed(MouseEvent e) {
+                       maybeShowPopup(e);
+               }
+
+               public void mouseReleased(MouseEvent e) {
+                       maybeShowPopup(e);
+               }
+
+               /**
+                * Selects the notes within the area that was selected.
+                */
+               public void mouseDragged(MouseEvent e) {
+                       
+               }
+
+               /**
+                * Shows the menu if an OS-specific popup-trigger was activated.
+                */
+               private void maybeShowPopup(MouseEvent e) {
                        if (e.isPopupTrigger()) {
+                               popupY = e.getY();
                                popup.show(e.getComponent(), e.getX(), e.getY());
                        }
                }
 
+               /**
+                * Grabs the focus when the mouse has entered.
+                */
                public void mouseEntered(MouseEvent e) {
                        // Moosique.setActiveChannel(track.getChannel());
+                       grabFocus();
+               }
+       }
+
+       /**
+        * Listens on actions on the popup menu and executes the appropriate action.
+        */
+       class PopupListener implements ActionListener {
+               public void actionPerformed(ActionEvent e) {
+                       Object source = e.getSource();
+                       if (source == popupAdd) {
+                               addStandardNote();
+                       } else if (source == selPopupRemove) {
+                               Iterator it = selected.iterator();
+                               while(it.hasNext()) {
+                                       removeNote((MooNoteElement)it.next());
+                               }
+                               selected.clear();
+                       } else if (source == selPopupTranspUpOct) {
+                               transposeSelectedNotes(12);
+                       } else if (source == selPopupTranspDownOct) {
+                               transposeSelectedNotes(-12);
+                       }
                }
        }
 }