comparison src/samer/tools/ImageTraceBase.java @ 0:bf79fb79ee13

Initial Mercurial check in.

+/*
+ *	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.tools;
+
+import java.awt.*;
+import java.util.*;
+import samer.core.*;
+import samer.core.util.*;
+
+public abstract class ImageTraceBase extends ImageViewer
+{
+	int		sx, sy;
+	int		scrollStep=1;
+	boolean	sc;
+	boolean	stretch=false;
+	boolean	scroll=false;
+
+	
+	ImageTraceBase( ImageSourceBase i, Observable o)
+	{
+		super(i,o);
+
+		setScroll(Shell.getBoolean("scroll",false));
+		setStretch(Shell.getBoolean("stretch",false));
+		setScrollStep(1);
+		setCellSize(cx,cy);
+	}
+
+	public void setScrollStep(int st) { scrollStep=st; }
+	public void setScroll(boolean f) { scroll=f; }
+	public void setStretch(boolean f) {
+		stretch = f;
+		sc = stretch || (cx!=1) || (cy!=1);
+	}
+
+	public void setCellSize( int a, int b) 
+	{ 
+		super.setCellSize(a,b);
+		sc = stretch || (cx!=1) || (cy!=1);
+		sx = cx*ip.getWidth();
+		sy = cy*ip.getHeight();
+	}
+
+	public void update( Graphics g) { clear(g); }
+	public void paint( Graphics g) { clear(g); }
+
+	public void getCommands(Agent.Registry r) {
+		super.getCommands(r); r.group();
+		r.add("scroll",scroll).add("stretch",stretch).add("cell.size");
+	}
+
+	public void execute(String cmd, Environment env)	throws Exception
+	{
+		if (cmd.equals("scroll")) {
+			setScroll(X._bool(env.datum(),!scroll));
+		} else if (cmd.equals("stretch")) {
+			setStretch(X._bool(env.datum(),!stretch));
+		} else if (cmd.equals("cell.size")) {
+			setCellSize(
+				X._int(env.datum("cell.width"),cx),
+				X._int(env.datum("cell.height"),cy)
+			);
+		} else super.execute(cmd,env);
+	}
+
+	public abstract void next();
+	
+	public void update(Observable o, Object oo) {
+		if (o==obs && oo!=Viewable.DISPOSING) next();
+		else super.update(o,oo);
+	}
+}