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Java/media/ZZSoundView.java

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+/*   
+ZZSoundView.java
+ *    
+ *    Copyright (c) 2000, Ted Nelson and Tuomas Lukka
+ *
+ *    You may use and distribute under the terms of either the GNU Lesser
+ *    General Public License, either version 2 of the license or,
+ *    at your choice, any later version. Alternatively, you may use and
+ *    distribute under the terms of the XPL.
+ *
+ *    See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of 
+ *    the licenses.
+ *
+ *    This software is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the README
+ *    file for more details.
+ *
+ */
+/*
+ * Written by Tuomas Lukka
+ */
+package org.gzigzag;
+import java.awt.*;
+
+/** A view showing a sound vstream on a sound scroll.
+ * Assumes that all cells in the d.2 rank come from the same scroll.
+ */
+
+public class ZZSoundView extends ZZViewComponent {
+public static final String rcsid = "$Id: ZZSoundView.java,v 1.8 2000/11/01 08:12:49 tjl Exp $";
+	public static boolean dbg = true;
+	void p(String s) { if(dbg) System.out.println(s); }
+	void pa(String s) { System.out.println(s); }
+
+	public ZZSoundView(ZZCell viewCell0) {
+		super(viewCell0);
+		setBackground(new Color(150,150,255));
+	}
+
+	ZZCell[] rank;
+	int[] t0; int[] t1; // in pixels
+
+	int top = 10; int bottom = 10;
+	int right = 10;
+
+	public boolean reraster() { return false; }
+
+	public void paintInto(Graphics gr) {
+	  synchronized(viewCell.getSpace()) {
+	  	Dimension size = getSize();
+
+		Insets ins = getInsets();
+		gr.setColor(getBackground());
+                gr.fillRect(ins.left, ins.top, 
+		    size.width-ins.left-ins.right, size.height-ins.top-ins.bottom);
+		gr.setColor(Color.black);
+
+		// assume vertical display - that way putting in transcription text is easy
+
+		ZZCell cursor = viewCell.h("d.cursor-cargo",-1).
+				    h("d.cursor", -1);
+		Span s = cursor.getSpan();
+		if(s==null) {
+			gr.drawString("Not a span", 0, size.height/2);
+			return;
+		}
+		Address start = s.getStart();
+		Address end = s.getEnd();
+
+		Scroll scr0 = start.getScroll(viewCell.getSpace());
+		if(!(scr0 instanceof SoundScroll)) {
+			gr.drawString("Wrong type:"+scr0, 0, size.height/2);
+			return;
+		}
+		SoundScroll scr = (SoundScroll)scr0;
+
+		long len = scr.getDurationNanoseconds();
+
+		ZZCell h = cursor.h("d.2", -1);
+		rank = h.readRank("d.2", 1, true, null);
+
+		t0 = new int[rank.length];
+		t1 = new int[rank.length];
+
+		int l = size.height - top - bottom;
+
+		gr.drawLine(right, top, right, size.height-bottom);
+
+		for(int i=0; i<rank.length; i++) {
+			Span sp = rank[i].getSpan();
+			if(sp==null) return;
+			Address curstart = sp.getStart();
+			Address curend = sp.getEnd();
+			t0[i] = (int)((l*curstart.getOffs())/len);
+			t1[i] = (int)((l*curend.getOffs())/len);
+
+			
+			if(rank[i] == cursor)
+				gr.setColor(Color.white);
+
+			gr.drawLine(right, t0[i], right+5, t0[i]);
+			gr.drawLine(right, t1[i], right+5, t1[i]);
+			gr.drawLine(right+1, t0[i], right+1, t1[i]);
+			gr.drawLine(right+2, t0[i], right+2, t1[i]);
+
+			if(rank[i] == cursor)
+				gr.setColor(Color.black);
+		}
+
+
+	  }
+	}
+	
+}