// FAPA.C                    Copyright (c) TrSek alias Zdeno Sekerak 
// Program ktory nazorne ukazuje sposob miesania farieb na zaklade   
// tychto metod: RGB, CMY, HSV alebo HLS.                            
// Vsetko je nazorne popasane a je mozne online menit hodnoty.       
//                                                                   
// Datum:14.12.1994                             http://www.trsek.com 
 
#include <string.h>
#include <graphics.h>
#include <dos.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <alloc.h>
#include <math.h>
#include <time.h>
 
#include "help.h"
#include "mys.h"
 
char *tex[]={"ESC-Exit","F1-Help","","F3-RGB","F4-CMY","F5-HSV",
	     "F6-HLS","F7-GRAY","F8-Old","F9-FAPA"};
 
char *col[][3]={{"BLUE","GREEN","RED"},{"YELLOW","MAGENTA","CYAN"},{"HUGE","SATURATION","VOLUME"},
	      {"HUGE","SYTOST","LIGHT"},{"GRAY","",""},{"","",""},
	      {"OLD","OLD","OLD"}};
 
void GetPath(char* cesta,char* args);
char* JoinPath(char* cesta,char* subor);
 
void uvod( int );
void fapa( void );
void butfree( int, int, int, int, int, int);
void butput ( int, int, int, int, int, int);
void button ( int, int );
void movbut ( int, int );
void uvod_kre( int , int);
void prac_obr( void );
int  vykonat(char *);
void init_pot( void );
void oz_col  ( void );
void get_rgb ( float * , int );
void put_rgb ( float * , int );
void prev_to_rgb ( void );
void prev_from_rgb ( void );
int  help  ( void );
void press ( void );
void change( int );
void duha  ( void );
int  minmax( int , int , int , int );
void zhasni( void );
int  strana( int , int , char * , FILE * );
 
unsigned far *butmap;
float butony[4],oldbut[4];
int inbut,akcol,typpa,old_akcol,po;
int gmaxx,gmaxy;
char cesta[128];
 
void main(int argv, char* args[])
{
int i,y;
int ch;
int but,xm,ym;
int pomer,pomy;
float oldc[256][3];
unsigned size;
int drv = DETECT, mode = 0 ;
char kam[128];
 
  // zisti cestu spustania
  GetPath(cesta, args[0]);
 
  detectgraph( &drv, &mode );
  initgraph( &drv, &mode, JoinPath(cesta, "egavga.bgi"));
  setbkcolor(BLUE);
  cleardevice();
 
  gmaxx=getmaxx();gmaxy=getmaxy();
  size=imagesize(gmaxx-89,137,gmaxx-80,151);
  butmap=(unsigned int far*) _graphgetmem(size);
  if (butmap==NULL) inbut=0;
	       else inbut=1;
 
  uvod_kre(1,0);
  for (i=0;i<=getmaxcolor();i++) get_rgb(oldc[i],i);
  oldc[0][1]=0;oldc[0][2]=0;oldc[0][3]=0;
 
  ch=0;randomize();
  do {
    for (i=0;i<=getmaxcolor();i++) {
     if ((i!=RED) && (i!=YELLOW) && (i!=BLUE)) {
	butony[1]=random(gmaxy-206);
	butony[2]=random(gmaxy-206);
	butony[3]=random(gmaxy-206);
	put_rgb(butony,i);
	}
    }
 
    //sound(random(1000));
    delay(100);nosound();
    if (kbhit()) ch=getch();
  } while (ch!=13);
 
  zhasni();
  prac_obr();
  butony[1]=1;butony[2]=1;butony[3]=1;
  oldbut[1]=1;oldbut[2]=1;oldbut[3]=1;
  getimage(gmaxx-89,137,gmaxx-80,151,butmap);
  typpa=3;akcol=0;old_akcol=0;
  button(typpa,1);
  init_mys();
  po=0;
 
  for (i=0;i<=getmaxcolor();i++)
  {
    butony[1]=oldc[i][1];butony[2]=oldc[i][2];butony[3]=oldc[i][3];
    put_rgb(butony,i);
  }
 
  oz_col();
  do {
    zobmys(1);
    getmys( &but, &xm, &ym );
 
   if (but==2) {
      ch=27;button(0,1);
   }
 
   if (but==1) {
      zobmys(0);
      if ((ym<=40) && (ym>=15)) {
	if ((xm>=20)  && (xm<=70))  { button(0,1);ch=27; }
	if ((xm>=81)  && (xm<=131)) { button(1,1);help();button(1,0);}
	if ((xm>=203) && (xm<=253)) { button(typpa,0);change(0);button(3,1);}
	if ((xm>=264) && (xm<=304)) { button(typpa,0);change(1);button(4,1);}
	if ((xm>=325) && (xm<=365)) { button(typpa,0);change(2);button(5,1);}
	if ((xm>=386) && (xm<=426)) { button(typpa,0);change(3);button(6,1);}
	if ((xm>=447) && (xm<=487)) {
	    if (vykonat("Prekonvertovaœ na çedŁ çk lu.")) {
				   button(typpa,0);button(7,1);
				   for (i=0;i<=getmaxcolor();i++)
					{akcol=i;oz_col();
					 butony[1]=i*((gmaxy-206)/getmaxcolor());
					 butony[2]=butony[1];butony[3]=butony[1];
					 butony[1]=butony[2];
					 oldbut[3]=butony[2];oldbut[2]=butony[2];
					 oldbut[1]=butony[2];
					 movbut(1,0);}
				   akcol=0;duha();oz_col();change(4);button(7,1);}}
	if ((xm>=508) && (xm<=548)) {
	    if (vykonat("Vr tiœ p“vodn‚ farby.")) {
				   button(typpa,0);button(8,1);change(6);
				   for (i=0;i<=getmaxcolor();i++) {
				    butony[1]=oldc[i][1];butony[2]=oldc[i][2];butony[3]=oldc[i][3];
				    oldbut[1]=oldc[i][1];oldbut[2]=oldc[i][2];oldbut[3]=oldc[i][3];
				    akcol=i;
				    movbut(1,0);
				    }
				   duha();typpa=3;akcol=0;oz_col();change(0);
				   button(8,0);
				   button(3,1);}}
	if ((xm>=569) && (xm<=609)) {button(9,1);fapa();button(9,0);}
      }
 
    if ((ym<=gmaxy-50) && (ym>=135)) {
     xm=gmaxx-xm;
     if ((xm<=93) && (xm>=77)) {
	do {
	set_mys(gmaxx-20,gmaxy/2);
	getmys( &but, &xm, &ym);
	if (ym<gmaxy/2) for (i=ym;i<=gmaxy/2;i=i+2) movbut(3,-2);
	if (ym>gmaxy/2) for (i=gmaxy/2;i<=ym;i=i+2) movbut(3, 2);
	} while (but==1);
	set_mys(gmaxx-80,140);
	ym=0;xm=0; }
     if ((xm<=64) && (xm>=48)) {
	do {
	set_mys(gmaxx-50,gmaxy/2);
	getmys( &but, &xm, &ym);
	if (ym<gmaxy/2) for (i=ym;i<=gmaxy/2;i=i+2) movbut(2,-2);
	if (ym>gmaxy/2) for (i=gmaxy/2;i<=ym;i=i+2) movbut(2, 2);
	} while (but==1);
	set_mys(gmaxx-50,140);
	ym=0;xm=0; }
     if ((xm<=35) && (xm>=20)) {
	do {
	set_mys(gmaxx-25,gmaxy/2);
	getmys( &but, &xm, &ym);
	if (ym<gmaxy/2) for (i=ym;i<=gmaxy/2;i=i+2) movbut(1,-2);
	if (ym>gmaxy/2) for (i=gmaxy/2;i<=ym;i=i+2) movbut(1, 2);
	} while (but==1);
	set_mys(gmaxx-25,140);
	ym=0;xm=0; }
	xm=gmaxx-xm;
      }
    if ((ym>=55) && (ym<=gmaxy-50))
      if ((xm>=20) && (xm<=gmaxx-107)) {
	pomer=((gmaxx-127)/16);
	pomy=getmaxcolor()/16+1;
	ym=ym/((gmaxy-127)/pomy);
	xm=(xm-20)/pomer+ym*16;
	if ((xm>=0) && (xm<=15)) {akcol=ym*16+xm;oz_col();}
	}
    zobmys(1);
    }
if (kbhit()) ch=getch();
	else if (ch!=27) ch=1;
 
if (ch==27) button(0,1);
if ((ch==113) || (ch==81)) movbut(3,-2);	          /*pre Q*/
if ((ch==119) || (ch==86)) movbut(2,-2);		  /*pre W*/
if ((ch==101) || (ch==69)) movbut(1,-2);	          /*pre E*/
if ((ch==97 ) || (ch==65)) movbut(3, 2);	 	  /*pre A*/
if ((ch==115) || (ch==83)) movbut(2, 2);	 	  /*pre S*/
if ((ch==100) || (ch==68)) movbut(1, 2);	 	  /*pre D*/
 
if (ch==0)
   {
   if (kbhit) {
     zobmys(0);
     ch=getch();
     switch (ch) {
      case 59: button(1,1);help();button(1,0);break;
      case 61: button(typpa,0);change(0);button(3,1);break;
      case 62: button(typpa,0);change(1);button(4,1);break;
      case 63: button(typpa,0);change(2);button(5,1);break;
      case 64: button(typpa,0);change(3);button(6,1);break;
      case 65: if (vykonat("Prekonvertovaœ na çedŁ çk lu.")) {
	       button(typpa,0);button(7,1);
			       for (i=0;i<=getmaxcolor();i++) {
				 butony[1]=i*((gmaxy-206)/getmaxcolor());
				 butony[2]=butony[1];butony[3]=butony[1];
				 butony[1]=butony[2];
				 oldbut[3]=butony[2];oldbut[2]=butony[2];
				 oldbut[1]=butony[2];
				 movbut(1,0);akcol=i;oz_col();}
		duha();akcol=0;oz_col();change(4);button(7,1);
		} break;
      case 66: if (vykonat("Vr tiœ p“vodn‚ farby.")) {
	       button(typpa,0);button(8,1);change(6);
		   for (i=0;i<=getmaxcolor();i++) {
		    butony[1]=oldc[i][1];butony[2]=oldc[i][2];butony[3]=oldc[i][3];
		    oldbut[1]=oldc[i][1];oldbut[2]=oldc[i][2];oldbut[3]=oldc[i][3];
		    akcol=i;
		    movbut(1,0);
		    }
		   duha();typpa=3;akcol=0;oz_col();change(0);
		   button(8,0);
		   button(3,1);}break;
      case 67: button(9,1);fapa();button(9,0);break;
      case 75: if (akcol>0) akcol=akcol-1;oz_col();break;
      case 77: if (akcol<getmaxcolor()) akcol=akcol+1;oz_col();break;
      }
     zobmys(1);
     }
   }
  if (ch==27) if (vykonat("Chceç ukonŸiœ program FAPA.")==0) ch=0;
  }
  while (ch!=27);
 
  closegraph();
}
 
// prepocet na suradnice podla x,y-rozlisenia monitora
int rcmx(int x)	{  return x*640.0/gmaxx; }
int rcmy(int y)	{  return y*480.0/gmaxy; }
 
void uvod_kre(int vse, int pos )
{
int i;
 
  if (vse==1) for (i=1;i<=gmaxx/2;i++) uvod(i);
  setfillstyle(1,BLUE);i=(1.0*gmaxx)/4.7;
  butfree(i,i+pos,gmaxx-i,gmaxy-i+pos,10,RED);
  setcolor(YELLOW);
  settextstyle(1,0,9);
  outtextxy(i+20,i-10+pos," FAPA");
 
  settextstyle(2,0,9);
  outtextxy(i+65,i+80+pos,"Farebn  paleta");
  settextstyle(2,0,6);
  outtextxy(i+50,i+113+pos,"PoŸĄtaŸov  grafika 14.12.1994");
  outtextxy(i+70,i+130+pos,"predn çajŁci:doc.ćujanskě");
  outtextxy(i+100,i+147+pos,"cviŸiaci:ing.Sobota");
  butfree(i+100,i+177+pos,gmaxx-i-100,gmaxy-i-8+pos,5,BLUE);
  outtextxy(i+135,i+177+pos,"StlaŸ ENTER");
  setfillstyle(1,RED);i=gmaxx/4;
  butfree(i,i+200+pos,gmaxx-i,gmaxy-i+135+pos,10,BLUE);
  setcolor(YELLOW);
  settextstyle(2,0,6);
  outtextxy(i+130,i+210+pos,"Autori:");
  outtextxy(i+40,i+228+pos,"Zdeno Seker k alias TRSEK");
  outtextxy(i+110,i+246+pos,"Gabriel Sille");
  outtextxy(i+25,i+264+pos,"FEI TU Koçice - III.A/5 ç.sk.");
}
 
void uvod(int od)
{
  setcolor(od);
  line(od,od,gmaxx-od,od);
  line(gmaxx-od,od,gmaxx-od,gmaxy-od);
  line(gmaxx-od,gmaxy-od,od,gmaxy-od);
  line(od,gmaxy-od,od,od);
}
 
// zobrazenie buttonu
void butfree(int x1, int y1, int x2, int y2, int but, int col)
{
int i;
 
  setfillstyle(1,col);
  bar(rcmx(x1),rcmy(y1),rcmx(x2),rcmy(y2));
  setcolor(WHITE);
 
  for (i=1;i<=but;i++) {
    line(rcmx(x2+i),rcmy(y1-i),rcmx(x1-i),rcmy(y1-i));
    line(rcmx(x1-i),rcmy(y1-i),rcmx(x1-i),rcmy(y2+i));
  }
 
  setcolor(DARKGRAY);
  for (i=1;i<=but;i++) {
    line(rcmx(x2+i),rcmy(y1-i),rcmx(x2+i),rcmy(y2+i));
    line(rcmx(x2+i),rcmy(y2+i),rcmx(x1-i),rcmy(y2+i));
  }
}
 
// uvodna obrazovka programu
void fapa( void )
{
  uvod_kre(0,-40);
  settextstyle(2,1,4);
  press();
  duha();
  oz_col();
}
 
int vykonat(char sprava[])
{
int x,y,but,konc;
char ch;
int font;
 
  font=installuserfont("litt");
  settextstyle(font,0,6);
  butfree(80,150,gmaxx-150,gmaxy-250,6,LIGHTGRAY);
  setcolor(DARKGRAY);
 
  outtextxy(80+(360.0-8*strlen(sprava))/2,160,sprava);
  butfree(170,200,220,220,3,LIGHTGRAY);
  outtextxy(183,200,"Ano");
  butfree(350,200,400,220,3,LIGHTGRAY);
  outtextxy(363,200,"Nie");
  konc=-1;
 
  do {
   getmys(&x,&y,&but);
   if (but==1) {
     if ((x>170) && (x<220) && (y>200) && (y<220)) {
	konc=1;
	butput(170,200,220,220,3,LIGHTGRAY);
	outtextxy(183,200,"Ano");
     }
 
     if ((x>350) && (x<400) && (y>200) && (y<220)) {
	konc=0;
	butput(350,200,400,220,3,LIGHTGRAY);
	outtextxy(363,200,"Nie");
     }
   }
 
   if (kbhit()) {
      ch=getch();
      if ((ch==65) || (ch== 97)) {
	 konc=1;
	 butput(170,200,220,220,3,LIGHTGRAY);
	 outtextxy(183,200,"Ano");
      }
 
      if ((ch==78) || (ch==110)) {
	 konc=0;
	 butput(350,200,400,220,3,LIGHTGRAY);
	 outtextxy(363,200,"Nie");
      }
   }
  } while ((konc!=0) && (konc!=1));
 
  settextstyle(2,0,5);
  duha();
  oz_col();
  return(konc);
}
 
 
void butput (int x1, int y1, int x2, int y2, int but, int col)
{
int i;
 
  setfillstyle(1,col);
  bar(rcmx(x1),rcmy(y1),rcmx(x2),rcmy(y2));
  setcolor(DARKGRAY);
 
  for (i=1;i<=but;i++) {
    line(rcmx(x2+i),rcmy(y1-i),rcmx(x1-i),rcmy(y1-i));
    line(rcmx(x1-i),rcmy(y1-i),rcmx(x1-i),rcmy(y2+i));
  }
 
  setcolor(WHITE);
  for (i=1;i<=but;i++) {
    line(rcmx(x2+i),rcmy(y1-i),rcmx(x2+i),rcmy(y2+i));
    line(rcmx(x2+i),rcmy(y2+i),rcmx(x1-i),rcmy(y2+i));
  }
}
 
 
void button(int porad, int ako )
{
settextstyle(2,0,4);
  if (ako)
  {
    butput(20+porad*61, 15, 70+porad*61, 40, 3,LIGHTGRAY);
    setcolor(DARKGRAY);
    outtextxy(25+porad*61, 20, tex[porad]);
    if (porad>2)
    {
      oz_col();
      init_pot();
    }
  }
  else
  {
    butfree(20+porad*61,15,70+porad*61,40,3,LIGHTGRAY);
    outtextxy(25+porad*61,20,tex[porad]);
  }
}
 
 
void init_pot( void )
{
int y,i;
float krok;
 
  butfree(gmaxx-93,135,gmaxx-77,gmaxy-50,3,LIGHTGRAY);
  butfree(gmaxx-64,135,gmaxx-48,gmaxy-50,3,LIGHTGRAY);
  butfree(gmaxx-35,135,gmaxx-20,gmaxy-50,3,LIGHTGRAY);
 
  butfree(gmaxx-87,137,gmaxx-82,138+butony[3],2,LIGHTGRAY);
  butfree(gmaxx-58,137,gmaxx-53,138+butony[2],2,LIGHTGRAY);
  butfree(gmaxx-29,137,gmaxx-24,138+butony[1],2,LIGHTGRAY);
 
  butfree(gmaxx-93,gmaxy-35,gmaxx-77,gmaxy-15,3,LIGHTGRAY);
  butfree(gmaxx-64,gmaxy-35,gmaxx-48,gmaxy-15,3,LIGHTGRAY);
  butfree(gmaxx-35,gmaxy-35,gmaxx-20,gmaxy-15,3,LIGHTGRAY);
 
  krok=0;setcolor(DARKGRAY);y=i=0;y=y+1;
  if ((141<=gmaxy-56) && (((gmaxy-197)/50)>0))
  for (i=141;i<=gmaxy-56;i=i+(gmaxy-197)/50,krok=krok+0.25)
  {
    line(gmaxx-93,i,gmaxx-92,i);
    line(gmaxx-64,i,gmaxx-63,i);
    line(gmaxx-35,i,gmaxx-34,i);
    if (krok==(y=krok))
    {
      line(gmaxx-93,i,gmaxx-90,i);
      line(gmaxx-64,i,gmaxx-61,i);
      line(gmaxx-35,i,gmaxx-32,i);
    }
  }
  for (i=1;i<=3;i++) movbut(i,0);
}
 
 
void prac_obr( void )
{
int i;
 
  setbkcolor(LIGHTGRAY);
  cleardevice();
  setfillstyle(1,LIGHTGRAY);
  butfree(5,5,gmaxx-5,gmaxy-5,5,LIGHTGRAY);
  setfillstyle(1,BLUE);
  settextstyle(2,0,4);
 
  for (i=0;i<=9;i++)
  {
    if (i!=2) {
       butfree(20+i*61,15,70+i*61,40,3,LIGHTGRAY);
       outtextxy(25+i*61,20,tex[i]);
    }
  }
 
  setbkcolor(BLACK);
  butfree(20,55,gmaxx-107,gmaxy-50,3,BLACK);
  butfree(20,gmaxy-35,gmaxx-200,gmaxy-15,3,LIGHTGRAY);
  outtextxy(25,gmaxy-33,"FAREBNA PALETA (c) 1994, Software by TRSEK & Sille. PoŸĄtaŸov  grafika");
 
  butfree(gmaxx-183,gmaxy-35,gmaxx-107,gmaxy-15,3,LIGHTGRAY);
  outtextxy(gmaxx-178,gmaxy-33,"Percent  ->");
 
  butfree(gmaxx-93,55,gmaxx-77,125,3,LIGHTGRAY);
  butfree(gmaxx-64,55,gmaxx-48,125,3,LIGHTGRAY);
  butfree(gmaxx-35,55,gmaxx-20,125,3,LIGHTGRAY);
 
  init_pot();
  settextstyle(2,1,4);
  for (i=1;i<=3;i++)
    outtextxy(gmaxx-7-i*28,57,col[0][i-1]);
  duha();
}
 
 
// robi efekt prelinania sa farieb
void duha( void )
{
int x,y,pomer,pomy;
 
  pomer=(gmaxx-127)/16;
  pomy=getmaxcolor()/16;
  if (pomy==0) pomy=1;
 
  for (y=0;y<=pomy-1;y++)
    for (x=20;x<=gmaxx-107;x++) {
      setcolor(((y*(gmaxx-127)+x-20)/pomer));
      line(x,y*((gmaxy-105)/pomy)+55,x,55+(y+1)*((gmaxy-105)/pomy));
    }
}
 
 
// zobrazi help subor
int help( void )
{
int font,s,y,x,but,good;
char ch,re[80],re2[2];
FILE *fopen(),*f;
char kam[128];
 
  butfree(20,55,gmaxx-57,gmaxy-50,3,LIGHTGRAY);
  settextstyle(2,0,5);
  butfree(40,gmaxy-80,140,gmaxy-60,2,LIGHTGRAY);
  butfree(180,gmaxy-80,280,gmaxy-60,2,LIGHTGRAY);
  butfree(320,gmaxy-80,430,gmaxy-60,2,LIGHTGRAY);
  butfree(470,gmaxy-80,570,gmaxy-60,2,LIGHTGRAY);
 
  setcolor(DARKGRAY);
  outtextxy(50,gmaxy-81,"PgUp-Hore");
  outtextxy(190,gmaxy-81,"PgDn-Dole");
  outtextxy(330,gmaxy-81,"Enter-Koniec");
  outtextxy(480,gmaxy-81,"Strana:");
 
  font=installuserfont("litt");
  settextstyle(font,0,6);
 
  f=fopen(JoinPath(cesta,"help.txt","r");
  if (f==NULL) return(0);
 
  s=-1;re2[1]='\0';
  sprintf(re,"%3d",s+1);
  outtextxy(536,gmaxy-81,re);
 
  do {
    bar(20,55,gmaxx-57,gmaxy-83);
    if (s==-1) {
       settextstyle(font,0,4);
       obrazky();
       good=0;
       settextstyle(font,0,6);
    }
    else {
      if ((good=strana(1,s,re,f))==0)
      {
	 for (y=1;y<=20;y++) {
	   setcolor(DARKGRAY);
 
	   for (x=0;x<=strlen(re);x++) {
	     re2[0]=re[x];
	     if (re[x]=='@') setcolor(YELLOW);
			else outtextxy(40+x*8,45+y*16,re2);
	   }
 
	   if ((good=strana(0,s,re,f))!=0) y=21;
	 }
      }
    }
 
  ch=0;zobmys(1);
 
  do {
    getmys(&but,&x,&y);
    if (but==1)
    {
       y=gmaxy-y;
       if ((y<80