import java.awt.*; import java.awt.image.*; import java.applet.Applet; import Complex; public class sala8 extends Applet implements Runnable { Thread kicker = null; int maxcol = 160; int ns = 8; int ncolr = 30; byte redm[] = new byte[maxcol]; byte greenm[] = new byte[maxcol]; byte bluem[] = new byte[maxcol]; byte b255 = (byte)255; Image img; Image s; IndexColorModel icm; int hh=50; int height=100; int width=50; double Left1,Right1,Top1,Bottom1; byte data[] ; double c1 = .5; double c2 = -.5; Panel control; Label c1val,c2val; Scrollbar slider1,slider2; Font font; TextField f1,f2; Label workdone,xmouse,ymouse; int heights = 200; int widths = 200; int icy[][]; String message = null; public byte interp(int a,int b,double f) { return (byte)(a*(1-f)+b*f); } public void start() { if (kicker == null) { kicker = new Thread(this); kicker.start(); } } public void stop() { if (kicker!=null) { kicker.stop(); kicker = null; } } public void init() { int i; s = getImage(getCodeBase(),"porta8.gif"); Left1 = -1.15; Right1 = 1.; Top1 = 1.15; Bottom1 = -1.15; if(getParameter("NXPIX") != null) { width = new Integer(new String(getParameter("NXPIX"))).intValue(); } if(getParameter("NYPIX") != null) { hh = new Integer(new String(getParameter("NYPIX"))).intValue(); } if(getParameter("HEIGHT") != null) { height = new Integer(new String(getParameter("HEIGHT"))).intValue(); } data = new byte[hh*width]; redm[0] = 0; greenm[0] = 0; bluem[0] = 0; for (i=0;i<5;i++) { redm[i+1] = interp(255,0,i/4.); greenm[i+1] = interp(0,0,i/4.); bluem[i+1] = interp(255,0,i/4.); } for (i=0;i<4;i++) { redm[i+6] = interp(0,255,i/3.); greenm[i+6] = interp(0,255,i/3.); bluem[i+6] = interp(255,0,i/3.); } icm = new IndexColorModel(8,maxcol,redm,greenm,bluem); img = createImage(new MemoryImageSource(width,hh,icm,data,0,width)); font = new Font("Helvetica", Font.BOLD, 12); setLayout(new BorderLayout()); control = new Panel(); control.setLayout(new GridLayout((int)(height/40),1)); add("East", control); c1val = new Label("c1 (-.6,2.) .5"); control.add(c1val); slider1 = new Scrollbar(Scrollbar.HORIZONTAL, 50, 1, 1, 10000); control.add(slider1); c2val = new Label("c2 (-1.,1.) .5"); control.add(c2val); slider2 = new Scrollbar(Scrollbar.HORIZONTAL, 50, 1, 1, 10000); control.add(slider2); control.add(new Button("Random")); f1 = new TextField(String.valueOf(c1),10); control.add(f1); f2 = new TextField(String.valueOf(c2),10); control.add(f2); workdone = new Label("work done"); control.add(workdone); xmouse = new Label("mouse off"); control.add(xmouse); ymouse = new Label("mouse off"); control.add(ymouse); } public boolean mouseDown(Event evt, int x, int y) { int ns1,ns2; ns1 = 0; ns2 = 0; if ( (x < widths) && (y 100 && y < 100) ns=9; if(x < 100 && y > 100) ns=10; if(x > 100 && y > 100) ns=11; if (ns == 8) { ns1=x; ns2=y; Left1 = -1.15; Right1 = 1.; Top1 = 1.15; Bottom1 = -1.15; } if (ns == 9) { ns1=x-100; ns2=y; Left1 = -1.; Right1 = 1.; Top1 = 1.; Bottom1 = -1.; } if (ns == 10) { ns1=x; ns2=y-100; Left1 = -1.1; Right1 = 1.; Top1 = 1.1; Bottom1 = -1.1; } if (ns == 11) { ns1=x-100; ns2=y-100; Left1 = -1.; Right1 = 1.; Top1 = 1.1; Bottom1 = -1.1; } c1 = (double)ns1/widths*(Right1-Left1)+Left1; c2 = (double)(101-ns2)/heights*(Top1-Bottom1)+Bottom1; f1.setText(String.valueOf(c1)); f2.setText(String.valueOf(c2)); c1val.setText(String.valueOf(c1)); c2val.setText(String.valueOf(c2)); if (kicker == null) { start(); } return true; } return true; } public boolean handleEvent(Event e) { if (e.target instanceof Scrollbar) { int value = ((Scrollbar)e.target).getValue(); if (e.target == slider1) { c1 = value; c1 = c1/10000*(Right1-Left1)+Left1; c1val.setText(String.valueOf(c1)); f1.setText(String.valueOf(c1)); if (kicker == null) { start(); } } if (e.target == slider2) { c2 = value; c2 = c2/10000*(Top1-Bottom1)+Bottom1; c2val.setText(String.valueOf(c2)); f2.setText(String.valueOf(c2)); if (kicker == null) { start(); } } return true; } return super.handleEvent(e); } public boolean action(Event e, Object arg) { if("Random".equals(arg)){ c1 = Math.random()*(Right1-Left1)+Left1; c2 = Math.random()*(Top1-Bottom1)+Bottom1; f1.setText(String.valueOf(c1)); f2.setText(String.valueOf(c2)); c1val.setText(String.valueOf(c1)); c2val.setText(String.valueOf(c2)); if (kicker == null) { start(); } return true; } if(e.target instanceof TextField) { if(e.target == f1) c1 = Double.valueOf(f1.getText()).doubleValue(); if(e.target == f2) c2 = Double.valueOf(f2.getText()).doubleValue(); if (kicker == null) { start(); } return true; } return true; } public void paint(Graphics g) { g.drawImage(img,0,heights+20,width*3,width*3,this); g.drawImage(s,0,0,this); } public void update(Graphics g) { paint (g); } public void run() { int Npix = width; double Left = -1.2; double Right = 1.2; double Bottom =-1.2; double Top = 1.2; double dx = (Right -Left)/Npix; double dy = (Top - Bottom)/Npix; double x,y,x1,y1,r; int i,j,ncol; Complex xc,cx,xc0; workdone.setText("First phase"); message ="First phase"; showStatus(message); repaint(); try { Thread.sleep(1000);} catch (InterruptedException e) { } cx = new Complex(c1,c2); for ( i=0;i4) break; } ncol = l; if(l==50) ncol = 0; data[i+j*width] = (byte)((ncol%9)+1); } message =String.valueOf(i*2)+"%"; showStatus(message); repaint(); workdone.setText(message); } img = null; img = createImage( new MemoryImageSource(width,hh,icm,data,0,width)); repaint(); message ="Done!"; showStatus(message); repaint(); workdone.setText("Done!"); kicker = null; } }