/home/coolpkct/www/websites/cake3.cool.rocks/admin/colorjack/plugin.js
/* DHTML Color Picker, Programming by Ulyses, ColorJack.com
* This version featured on/available at Dynamic Drive: http://www.dynamicdrive.com
* Minor fixes by DD: Disabled text selection during dragging, fixed IE doctype issue with document.body
*
* Changes by JH - function toggle changed to toggleDisplay to avoid name conflict (with?)
* function $ renamed to $E to avoid conflict with jQuery
* function $S changed to use getElementById directly instead of calling $E
*/
var standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
function $E(v) { return(document.getElementById(v)); }
function $S(v) { return(document.getElementById(v).style); }
function browser(v) { return(Math.max(navigator.userAgent.toLowerCase().indexOf(v),0)); }
function toggleDisplay(v) { $S(v).display=($S(v).display=='none'?'block':'none'); }
function within(v,a,z) { return((v>=a && v<=z)?true:false); }
function XY(e,v) { var z=browser('msie')?Array(event.clientX+standardbody.scrollLeft,event.clientY+standardbody.scrollTop):Array(e.pageX,e.pageY); return(z[zero(v)]); }
function zero(v) { v=parseInt(v); return(!isNaN(v)?v:0); }
function zindex(d) { d.style.zIndex=zINDEX++; }
/* PLUGIN */
var maxValue={'h':'359','s':'100','v':'100'},HSV={0:359,1:100,2:100};
var SVHeight=165,wSV=162,wH=162,slideHSV={0:359,1:100,2:100},zINDEX=15,stop=1;
function HSVslide(d,o,e) {
function tXY(e) { tY=XY(e,1)-top; tX=XY(e)-left; }
function mkHSV(a,b,c) { return(Math.min(a,Math.max(0,Math.ceil((parseInt(c)/b)*a)))); }
function ckHSV(a,b) { if(within(a,0,b)) return(a); else if(a>b) return(b); else if(a<0) return('-'+oo); }
function drag(e) { if(!stop) {
if(d=='SVslide') { tXY(e); ds.left=ckHSV(tX-oo,wSV)+'px'; ds.top=ckHSV(tY-oo,wSV)+'px';
slideHSV[1]=mkHSV(100,wSV,ds.left); slideHSV[2]=100-mkHSV(100,wSV,ds.top); HSVupdate();
}
else if(d=='Hslide') {
tXY(e); ds.top=(ckHSV(tY-oo,wH)-5)+'px'; slideHSV[0]=mkHSV(359,wH,ds.top);
function commit() { var r='hsv',z={},j='';
for(var i=0; i<=r.length-1; i++) { j=r.substr(i,1); z[i]=(j=='h')?maxValue[j]-mkHSV(maxValue[j],wH,ds.top):HSV[i]; }
return(HSVupdate(hsv2hex(z)));
}
mkColor(commit()); $S('SV').backgroundColor='#'+hsv2hex(Array(HSV[0],100,100));
}
else if(d=='drag') { ds.left=XY(e)+oX-eX+'px'; ds.top=XY(e,1)+oY-eY+'px'; }
}
if (e && e.preventDefault)
e.preventDefault()
else
return false
}
if(stop) { stop=''; var ds=$S(d!='drag'?d:o);
if(d=='drag') { var oX=parseInt(ds.left), oY=parseInt(ds.top), eX=XY(e), eY=XY(e,1); zindex($E(o)); }
else { var left=($E(o).offsetLeft+10), top=($E(o).offsetTop+22), tX, tY, oo=(d=='Hslide')?2:4; if(d=='SVslide') slideHSV[0]=HSV[0]; }
document.onmousemove=drag; document.onmouseup=function(){ stop=1; document.onmousemove=''; document.onmouseup=''; }; drag(e);
}
}
function HSVupdate(v) { HSV=v?hex2hsv(v):Array(slideHSV[0],slideHSV[1],slideHSV[2]);
if(!v) v=hsv2hex(Array(slideHSV[0],slideHSV[1],slideHSV[2]));
mkColor(v); $E('plugHEX').innerHTML=v; return(v);
}
function loadSV() { var z=''; for(var i=SVHeight; i>=0; i--) z+="<div style=\"BACKGROUND: #"+hsv2hex(Array(Math.round((359/SVHeight)*i),100,100))+";\"><br /><\/div>"; $E('Hmodel').innerHTML=z; }
function updateH(v) { HSV=hex2hsv(v);
$S('SV').backgroundColor='#'+hsv2hex(Array(HSV[0],100,100));
$S('SVslide').top=(parseInt(wSV-wSV*(HSV[2]/100))-4)+'px'; $S('SVslide').left=parseInt(wSV*(HSV[1]/100))+'px';
$S('Hslide').top=(parseInt(wH*((maxValue['h']-HSV[0])/maxValue['h']))-7)+'px';
}
/* CONVERSIONS */
function toHex(v) { v=Math.round(Math.min(Math.max(0,v),255)); return("0123456789ABCDEF".charAt((v-v%16)/16)+"0123456789ABCDEF".charAt(v%16)); }
function hex2rgb(r) { return({0:parseInt(r.substr(0,2),16),1:parseInt(r.substr(2,2),16),2:parseInt(r.substr(4,2),16)}); }
function rgb2hex(r) { return(toHex(r[0])+toHex(r[1])+toHex(r[2])); }
function hsv2hex(h) { return(rgb2hex(hsv2rgb(h))); }
function hex2hsv(v) { return(rgb2hsv(hex2rgb(v))); }
function rgb2hsv(r) { // easyrgb.com/math.php?MATH=M20#text20
var max=Math.max(r[0],r[1],r[2]),delta=max-Math.min(r[0],r[1],r[2]),H,S,V;
if(max!=0) { S=Math.round(delta/max*100);
if(r[0]==max) H=(r[1]-r[2])/delta; else if(r[1]==max) H=2+(r[2]-r[0])/delta; else if(r[2]==max) H=4+(r[0]-r[1])/delta;
var H=Math.min(Math.round(H*60),360); if(H<0) H+=360;
}
return({0:H?H:0,1:S?S:0,2:Math.round((max/255)*100)});
}
function hsv2rgb(r) { // easyrgb.com/math.php?MATH=M21#text21
var R,B,G,S=r[1]/100,V=r[2]/100,H=r[0]/360;
if(S>0) { if(H>=1) H=0;
H=6*H; F=H-Math.floor(H);
A=Math.round(255*V*(1.0-S));
B=Math.round(255*V*(1.0-(S*F)));
C=Math.round(255*V*(1.0-(S*(1.0-F))));
V=Math.round(255*V);
switch(Math.floor(H)) {
case 0: R=V; G=C; B=A; break;
case 1: R=B; G=V; B=A; break;
case 2: R=A; G=V; B=C; break;
case 3: R=A; G=B; B=V; break;
case 4: R=C; G=A; B=V; break;
case 5: R=V; G=A; B=B; break;
}
return({0:R?R:0,1:G?G:0,2:B?B:0});
}
else return({0:(V=Math.round(V*255)),1:V,2:V});
}
