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Morph
//Applet : Morph - Sep 11 '99.
//Author : Laxmi Narayana .Kota
// E-mail id: laxmikota@hotmail.com
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.applet.*;
public class Morph extends Applet implements Runnable{
boolean isStandalone = false;
int w,h,cnt=0,cnt1=0,totalpictures,temp,max,delay;
int buf[],clearbuf[],bufimg[][],imagewidth,imageheight;
static int zoomout=1;
int lsmargin[],rsmargin[],ldmargin[],rdmargin[],lscnt=0,rscnt=0,clear[],ldcnt=0,rdcnt=0;
int srcdif,dstdif,tempdif,xdif,xinc;
int tcnt=0, bcnt=0,tsmargin=0,bsmargin=0,tdmargin=0,bdmargin=0;
int dsthdif,srchdif,preh,yinc;
// l - left ; r- right; ls - left source; rs - right source
// t- top of the image; b - bottom of the image
// ld - left margin of destination image
// rd - right margin 0f destination image
Thread t;
Image img[],img1;
MediaTracker med;
PixelGrabber pg[];
String imagenames[],bgcolor,fontcolor,author;
Graphics offscreengraphics;
Image offscreenimage=null;
public String getParameter(String key, String def) {
return isStandalone ? System.getProperty(key, def) :
(getParameter(key) != null ? getParameter(key) : def);
}
public Morph() {
}
public void init() {
//t=new Thread(this);
try{
totalpictures=Integer.parseInt(getParameter("totalpictures","0"));
bgcolor=this.getParameter("bgcolor","0x000000");
fontcolor=this.getParameter("fontcolor","0x00ff00");
max=Integer.parseInt(getParameter("fadecount","30"));
delay=Integer.parseInt(getParameter("delay","30"));
author=getParameter("author","");
}catch(Exception exce){}
if(!author.equalsIgnoreCase("Laxminarayana.kota"))
System.exit(0);
this.setBackground(new Color(Integer.parseInt(bgcolor.substring(2),16)));
img=new Image[totalpictures];
imagenames=new String[totalpictures];
if(totalpictures >0 )
{ try{
for(int i=0;i<totalpictures;i++)
imagenames[i]=getParameter("imagenames["+i+"]","");
}catch(Exception exce){}
}
for(int i=0;i<totalpictures;i++)
img[i]=getImage(getCodeBase(),imagenames[i]);
med=new MediaTracker(this);
for(int i=0;i<img.length;i++)
med.addImage(img[i],0);
//t.start();
}
public void start() {
t= new Thread(this);
t.start();
}
public void run()
{
try{
med.waitForAll();
imagewidth=img[0].getWidth(null);imageheight=img[0].getHeight(null);
buf=new int[imagewidth*imageheight];clearbuf=new int[imagewidth*imageheight];
lsmargin=new int[imageheight];rsmargin=new int[imageheight];
ldmargin=new int[imageheight];rdmargin=new int[imageheight];
clear=new int[imageheight];
for(int i=0;i<imageheight;i++)
for(int j=0;j<imagewidth;j++)
{buf[imagewidth*i+j]=0xffffff; clearbuf[imagewidth*i+j]=0xffffff;}
for(int i=0; i<imageheight; ++i)
clear[i]=0;
bufimg=new int[img.length][imagewidth*imageheight];
clear=new int[imageheight];pg=new PixelGrabber[img.length];
for(int i=0;i<img.length;i++)
{pg[i]=new PixelGrabber(img[i],0,0,imagewidth,imageheight,bufimg[i],0,imagewidth);
pg[i].grabPixels();
}
}catch (InterruptedException exce){getAppletContext().showStatus("Loading images is failed");}
try{
for(;;){
cnt++;
if(cnt>max)
{ cnt1++; if(cnt1>img.length-1)cnt1=0;
cnt=0;
}
temp=(cnt1 <(img.length-1)) ? 1+cnt1 : 0;
System.arraycopy(clearbuf,0,buf,0,imagewidth*imageheight);
tcnt=0;
/* System.arraycopy(clear,0,lsmargin,0,imageheight);
System.arraycopy(clear,0,rsmargin,0,imageheight);
System.arraycopy(clear,0,ldmargin,0,imageheight);
System.arraycopy(clear,0,rdmargin,0,imageheight);*/
if(cnt>=0 && cnt<=1){
for(int i=0; i<imageheight; ++i) // left margin of source image
{lscnt=0;rscnt=0;
for(int j=0; j<zoomout*imagewidth; ++j)
{ if(lscnt==0 && j>0){
if( filter(bufimg[cnt1][imagewidth*i+j*imagewidth/(zoomout*imagewidth)],11) != filter(bufimg[cnt1][imagewidth*i],11) ){
lsmargin[i]=j/zoomout;lscnt++;
if(tcnt==0){tsmargin=i;tcnt++;}else tcnt++;}
}
}
}
bsmargin=tcnt + tsmargin;tcnt=0; // takes up the bottom margin of the image
for(int i=0; i<imageheight; ++i) // for right margin of soure image
{rscnt=0;
for(int j=0; j<zoomout*imagewidth; ++j)
{ if (rscnt==0 && j<zoomout*imagewidth){
if( filter(bufimg[cnt1][imagewidth*i+(zoomout*imagewidth-1-j)*imagewidth/(zoomout*imagewidth)],11) != filter(bufimg[cnt1][imagewidth*i+imagewidth-1],11) ){
rsmargin[i]=j/zoomout;rscnt++;}
}
}
}
for(int i=0; i<imageheight; ++i)// left margin of destination image
{ldcnt=0;rdcnt=0;
for(int j=0; j<zoomout*imagewidth; ++j)
{ if(ldcnt==0 && j>0){
if( filter(bufimg[temp][imagewidth*i+j*imagewidth/(zoomout*imagewidth)],11) != filter(bufimg[temp][imagewidth*i],11) ){
ldmargin[i]=j/zoomout;ldcnt++;
if(tcnt==0){tdmargin=i;tcnt++;}else tcnt++; }
}
}
}
bdmargin=tcnt+tdmargin;tcnt=0; // bottom margin of the destination image
for(int i=0; i<imageheight; ++i) //right margin of destination image
{ rdcnt=0;
for(int j=0; j<zoomout*imagewidth; ++j)
{ if (rdcnt==0 && j<zoomout*imagewidth){
if( filter(bufimg[temp][imagewidth*i+(zoomout*imagewidth-1-j)*imagewidth/(zoomout*imagewidth)],11) != filter(bufimg[temp][imagewidth*i+imagewidth-1],11) ){
rdmargin[i]=j/zoomout;rdcnt++;}
}
}
}
}
for(int k=0;k<imageheight;++k)
{ dsthdif=bdmargin-tdmargin; //132
srchdif=bsmargin-tsmargin; // 76
yinc=tsmargin - (tsmargin - tdmargin)*cnt/max;//27-25*30/30=2
preh=srchdif - (srchdif - dsthdif)*cnt/max;//76- (-56)*30/30=134
if(k>=yinc && k<=yinc+preh)
{for(int j=0;j<imagewidth;++j)
{int scalehsrc,scalehdst;
scalehsrc=/old?u=http%3A%2F%2Fjavaboutique.webdeveloper.com%2FMorph%2Ftsmargin%2B%28k-yinc%29%2Asrchdif%2Fpreh%3B%2F27%2B%28132%29%2A76%2F132&y=1999
scalehdst=tdmargin+(k-yinc)*dsthdif/preh;//2+76*132/76
dstdif=(imagewidth-1-rdmargin[scalehdst]) - ldmargin[scalehdst];
srcdif=(imagewidth-1-rsmargin[scalehsrc]) - lsmargin[scalehsrc];
xdif=lsmargin[scalehsrc] - ldmargin[scalehdst];
xinc=lsmargin[scalehsrc] - xdif*(cnt)/max; //(max-cnt)/max;
tempdif=srcdif - (srcdif-dstdif)*(cnt)/max;
if(j>xinc && j<=xinc+tempdif)
{int x1,x;
x=imagewidth*scalehsrc+lsmargin[scalehsrc]+(j-xinc)*srcdif/tempdif;// for src image
x1=imagewidth*scalehdst+ldmargin[scalehdst]+(j-xinc)*dstdif/tempdif;// for dst image
buf[imagewidth*k+j]=0xff<<24 |( compositefilter(bufimg[cnt1][x],max-cnt)+compositefilter(bufimg[temp][x1],cnt));
}else buf[imagewidth*k+j]=0xff000000;
}
}
}
img1=createImage(new MemoryImageSource(imagewidth,imageheight,buf,0,imagewidth));
if(cnt==max) t.sleep(1000);
else t.sleep(delay);
repaint();
}
}catch(InterruptedException e){}
}
public synchronized void update(Graphics g)
{
Dimension d = getSize();
if((offscreenimage == null))
{
offscreenimage = createImage(d.width, d.height);
offscreengraphics= offscreenimage.getGraphics();
}
offscreengraphics.setColor(getBackground());
offscreengraphics.fillRect(0, 0, d.width, d.height);
paint(offscreengraphics);
g.drawImage(offscreenimage, 0, 0,this);
}
public void paint(Graphics g)
{
if(med.statusAll(false)==med.COMPLETE)
g.drawImage(img1,0,0,this);
else
{ g.setColor(new Color(Integer.parseInt(fontcolor.substring(2),16)));
g.drawString("Loading Images Please wait...",20,100);
}
}
public void stop() {
t.interrupt();
}
public void destroy() {
if(t != null){t=null;}
}
public String getAppletInfo() {
return "Morph by LaxmiNarayana.Kota, Java vesion 1.0.2 - 11 Sep '99";
}
public String[][] getParameterInfo() {
return null;
}
public int filter(int rgb,int percent)
{ int r,g,b,temp;
r=rgb>>16 & 0xff; g=rgb>>8 & 0xff; b=rgb & 0xff;
r=r*8/100;g=g*8/100;b=b*8/100;
return (0xff<<24 | r<<16 | g<<8 | b) ;
}
public int compositefilter(int rgb, int percent)
{ int r,g,b;
r=rgb>>16 & 0xff; g=rgb>>8 & 0xff; b=rgb & 0xff;
r=r*percent/max;g=g*percent/max;b=b*percent/max;
return (0xff<<24 | r<<16 | g<<8 | b) ;
}
}
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