comparison src/samer/maths/IteratorImageSource.java @ 0:bf79fb79ee13

Initial Mercurial check in.

+/*
+ *	IteratorImageSource.java	
+ *
+ *	Copyright (c) 2000, Samer Abdallah, King's College London.
+ *	All rights reserved.
+ *
+ *	This software is provided AS iS and WITHOUT ANY WARRANTY; 
+ *	without even the implied warranty of MERCHANTABILITY or 
+ *	FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+package samer.maths;
+import  samer.tools.*;
+import  java.awt.image.*;
+
+/**
+	This is an image source that gets its values
+	from a Vec (vector) via its Vec.Iterator - ie,
+	it does not need access to an array of value
+  */
+
+public class IteratorImageSource extends ImageSourceBase
+{
+	Vec			vec;
+	byte []		buf;
+
+	public IteratorImageSource( Vec v) { this( v, v.size(), 1); }
+	public IteratorImageSource( Vec v, int w, int h)
+	{
+		vec		= v;
+		width	= w;
+		height	= h;
+		buf		= new byte[v.size()];
+	}
+
+
+	protected int getHints() {
+		return  ImageConsumer.TOPDOWNLEFTRIGHT 
+				| ImageConsumer.COMPLETESCANLINES
+				| ImageConsumer.SINGLEPASS;
+	}
+
+	protected void sendPixels(ImageConsumer ic)
+	{
+		Vec.Iterator it=vec.iterator(); 
+
+		for (int i=0; it.more(); i++) {
+			buf[i] = (byte)map.clipInt(it.next());
+		}
+		ic.setPixels(0, 0, width, height, model, buf, 0, width);
+	}
+}
+