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[moosique.git] / MooViewCounter.java

diff --git a/MooViewCounter.java b/MooViewCounter.java
index aea79444a2e36e44b5255e1598d59f9a4d192b5e..16d34b9c42b9abdb3f7767e73683af5c268faad4 100644 (file)
--- a/MooViewCounter.java
+++ b/MooViewCounter.java
@@ -1,18 +1,67 @@
+import javax.sound.midi.*;
 import javax.swing.*;
+import java.awt.*;
 
 /**
- * 
+ * A graphical representation of the time signature of the current sequence.
  * 
  * @author  Andersson, Andreen, Lanneskog, Pehrson
  * @version 1
  */
  
-public class MooViewCounter {
+public class MooViewCounter extends JPanel {
 
+       private int measure, halfBeat, beat, halfNote;
+       private static final int CELL_HEIGHT = 10;
+       
        /** 
-        * Creates 
+        * Creates an musical ruler depending on the timesignature
         */
-       public MooViewCounter () {
 
+       public MooViewCounter (MetaMessage[] timeSigs) {
+               int timeSig1 = 4, timeSig2 = 4; // ...for now
+               setBackground(Moosique.getGUI().bgColor);
+               setPreferredSize(new Dimension(35, 200 * CELL_HEIGHT));
+
+               switch (timeSig2) {
+                       case  16: measure = timeSig1;           // 1/16
+                               break;
+                       case  8: measure = timeSig1 * 2;        // 1/16
+                                halfBeat = measure / timeSig1; // 1/8
+                               break;
+                       case  4: measure = timeSig1 * 4;        // 1/16
+                                halfBeat = beat / 2;           // 1/8          
+                                beat = measure / timeSig1;     // 1/4  
+                               break;
+                       case  2: measure = timeSig1 * 8;        // 1/16
+                                halfBeat = beat / 2;           // 1/8
+                                beat = halfNote / 2;           // 1/4
+                                halfNote = measure / timeSig1; // 1/2
+                               break;
+                       case  1: measure = timeSig1 * 16;       // 1/16
+                                halfBeat = beat / 2;           // 1/8
+                                beat = halfNote / 2;           // 1/4
+                                halfNote = measure / 2;        // 1/2
+                               break;
+               }
+               
+       }
+
+       /**
+        * Draws the ruler-like fields.
+        * @param g The Graphics object it operates on.
+        */
+       public void paintComponent(Graphics g) {
+               super.paintComponent(g);
+               if (!(g instanceof Graphics2D)) return;
+               Graphics2D g2 = (Graphics2D)g;
+               g2.setColor(Color.black);
+               for (int c = 0; c < 200; c++) {
+                       g2.drawLine(0, c * CELL_HEIGHT, 5, c * CELL_HEIGHT);                                    // 1/16
+                       g2.drawLine(0, c * CELL_HEIGHT * halfBeat, 10, c * CELL_HEIGHT * halfBeat);             // 1/8
+                       g2.drawLine(0, c * CELL_HEIGHT * beat, 15, c * CELL_HEIGHT * beat);                     // 1/4
+                       g2.drawLine(0, c * CELL_HEIGHT * halfNote, 20, c * CELL_HEIGHT * halfNote);             // 1/2
+                       g2.drawLine(0, c * CELL_HEIGHT * measure, 30, c * CELL_HEIGHT * measure);               // 1/1
+               }
        }
 }