/*
 * 
 * This is an example of how to use libvncserver.
 * 
 * libvncserver example
 * Copyright (C) 2001 Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
 * 
 *  This is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this software; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
 *  USA.
 */

#include <stdio.h>
#include <netinet/in.h>
#ifdef __IRIX__
#include <netdb.h>
#endif
#define XK_MISCELLANY
#include "rfb.h"
#include "keysymdef.h"

const int maxx=640, maxy=480, bpp=4;

void initBuffer(char* buffer)
{
  int i,j;
  for(i=0;i<maxx;++i)
    for(j=0;j<maxy;++j) {
      buffer[(j*maxx+i)*bpp]=i*256/maxx;
      buffer[(j*maxx+i)*bpp+1]=j*256/maxy;
      buffer[(j*maxx+i)*bpp+2]=(i+j)*256/(maxx*maxy);
      buffer[(j*maxx+i)*bpp+3]=(i-j)*256/(maxx*maxy);
    }
}

void doptr(int buttonMask,int x,int y,rfbClientPtr cl)
{
   if(buttonMask && x>=0 && y>=0 && x<maxx && y<maxy) {
      int i,j,x1,x2,y1,y2;
      x1=x-buttonMask; if(x1<0) x1=0;
      x2=x+buttonMask; if(x2>maxx) x2=maxx;
      y1=y-buttonMask; if(y1<0) y1=0;
      y2=y+buttonMask; if(y2>maxy) y2=maxy;

      for(i=x1*bpp;i<x2*bpp;i++)
	for(j=y1;j<y2;j++)
	  cl->screen->frameBuffer[j*cl->screen->paddedWidthInBytes+i]=0xff;
      rfbMarkRectAsModified(cl->screen,x1,y1,x2,y2);
      rfbGotXCutText(cl->screen,"Hallo",5);
   }
}



void dokey(Bool down,KeySym key,rfbClientPtr cl)
{
  if(down && key==XK_Escape)
    rfbCloseClient(cl);
  else if(down && key=='c') {
    initBuffer(cl->screen->frameBuffer);
    rfbMarkRectAsModified(cl->screen,0,0,maxx,maxy);
  }
}

int main(int argc,char** argv)
{
  rfbScreenInfoPtr rfbScreen = rfbDefaultScreenInit(argc,argv);
  rfbScreen->desktopName="LibVNCServer Example";
  rfbScreen->frameBuffer = (char*)malloc(maxx*maxy*bpp);
  rfbScreen->width=maxx;
  rfbScreen->height=maxy;
  rfbScreen->paddedWidthInBytes=maxx*bpp;
  rfbScreen->ptrAddEvent=doptr;
  rfbScreen->kbdAddEvent=dokey;

  initBuffer(rfbScreen->frameBuffer);

  runEventLoop(rfbScreen,40000,FALSE);
  runEventLoop(rfbScreen,40000,TRUE);
  while(1);
   
  return(0);
}