MooViewCounter.java

   1 import javax.sound.midi.*;
   2 import javax.swing.*;
   3 import java.awt.*;
   4
   5 /**
   6  * A graphical representation of the time signature of the current sequence.
   7  *
   8  * @author  Andersson, Andreen, Lanneskog, Pehrson
   9  * @version 1
  10  */
  11
  12 public class MooViewCounter extends JPanel {
  13
  14         private int measure, halfBeat, beat, halfNote;
  15         private static final int CELL_HEIGHT = 10;
  16
  17         /**
  18          * Creates an musical ruler depending on the timesignature
  19          */
  20         public MooViewCounter (MetaMessage[] timeSigs) {
  21                 // ...for now
  22                 int timeSig1 = 4, timeSig2 = 4;
  23                 calculateLineSpecs(timeSig1, timeSig2);
  24                 setBackground(Moosique.getGUI().bgColor);
  25                 setPreferredSize(new Dimension(35, 200 * CELL_HEIGHT));
  26         }
  27
  28         private void calculateLineSpecs(int ts1, int ts2) {
  29                 switch (ts2) {
  30                         case 16: measure = ts1;                 // 1/16
  31                                  break;
  32                         case  8: measure = ts1 * 2;     // 1/16
  33                                  halfBeat = measure / ts1;      // 1/8
  34                                  break;
  35                         case  2: measure = ts1 * 8;     // 1/16
  36                                  halfBeat = beat / 2;           // 1/8
  37                                  beat = halfNote / 2;           // 1/4
  38                                  halfNote = measure / ts1;      // 1/2
  39                                  break;
  40                         case  1: measure = ts1 * 16;    // 1/16
  41                                  halfBeat = beat / 2;           // 1/8
  42                                  beat = halfNote / 2;           // 1/4
  43                                  halfNote = measure / 2;        // 1/2
  44                                  break;
  45                         default: measure = ts1 * 4;     // 1/16
  46                                  halfBeat = beat / 2;           // 1/8
  47                                  beat = measure / ts1;  // 1/4
  48                                  break;
  49                 }
  50         }
  51
  52         /**
  53          * Draws the ruler-like fields.
  54          * @param g The Graphics object it operates on.
  55          */
  56         public void paintComponent(Graphics g) {
  57                 super.paintComponent(g);
  58                 if (!(g instanceof Graphics2D)) return;
  59                 Graphics2D g2 = (Graphics2D)g;
  60                 g2.setColor(Color.black);
  61
  62
  63                 /* Using time signature...
  64                 for (int i = 0, tick = getTicksForPosition(i, 0, 0); tick < Moosique.getSequence().getTickLength(); i++) {
  65                         int[] ts = getTimeSig(tick);
  66                         calculateLineSpecs(ts[0], ts[1]);
  67                         g2.drawLine(0, c * CELL_HEIGHT, 5, c * CELL_HEIGHT);                                    // 1/16
  68                         g2.drawLine(0, c * CELL_HEIGHT * halfBeat, 10, c * CELL_HEIGHT * halfBeat);             // 1/8
  69                         g2.drawLine(0, c * CELL_HEIGHT * beat, 15, c * CELL_HEIGHT * beat);                     // 1/4
  70                         g2.drawLine(0, c * CELL_HEIGHT * halfNote, 20, c * CELL_HEIGHT * halfNote);             // 1/2
  71                         g2.drawLine(0, c * CELL_HEIGHT * measure, 30, c * CELL_HEIGHT * measure);               // 1/1
  72                 }
  73                 */
  74
  75                 for (int c = 0; c < 200; c++) {
  76                         g2.drawLine(0, c * CELL_HEIGHT, 5, c * CELL_HEIGHT);                                    // 1/16
  77                         g2.drawLine(0, c * CELL_HEIGHT * halfBeat, 10, c * CELL_HEIGHT * halfBeat);             // 1/8
  78                         g2.drawLine(0, c * CELL_HEIGHT * beat, 15, c * CELL_HEIGHT * beat);                     // 1/4
  79                         g2.drawLine(0, c * CELL_HEIGHT * halfNote, 20, c * CELL_HEIGHT * halfNote);             // 1/2
  80                         g2.drawLine(0, c * CELL_HEIGHT * measure, 30, c * CELL_HEIGHT * measure);               // 1/1
  81                 }
  82         }
  83 }