/**
* Ăltalános (böngĂ©szĹ‘fĂĽggetlen) segĂ©dfĂĽggvĂ©nyek
*/
// Függőségek
if ("undefined" == typeof AITIA) {
alert("AITIA include missing!");
}
// Többszörös include
if ("undefined" != typeof AITIA_UTIL) {
alert("AITIA_UTIL multiple insert!");
}
AITIA_UTIL = 1;
Aitia.Util = {};
Aitia.Util.lastDropped = {};
Aitia.Util.dragging = false;
Aitia.Util.treeDrags = new Array();
Aitia.Util.treeDrops = new Array();
Aitia.Util.treePerms = {};
Aitia.Util.timers = {};
/**
* Decimális számot hexadecimálisra alakĂt
*/
Aitia.Util.dec2Hex = function(num) {
var chars = '0123456789ABCDEF';
if (num > 255) return 'FF';
return chars.charAt(parseInt(num/16))+chars.charAt(num%16);
} // dec2Hex
/**
* BalrĂłl kiegĂ©szĂti a számot 0-al
* @todo: általánosabbra alakĂthatĂł
*/
Aitia.Util.digit2 = function(num) {
if (num < 10) {
return "0"+num;
}
return num;
} // digit2
/**
* Rendezés - Lehetne parametertől függő rendezés is (factory)
* cmpFunc(a,b): -1 a < b, 0 a = b, 1 a > b
*/
Aitia.Util.sort = function(arr,cmpFunc) {
this.quicksort(arr, 0, arr.length - 1, cmpFunc);
} // sort
/**
* Rendezés - quicksort implementáció
*/
Aitia.Util.quicksort = function(arr,a,b,cmpFunc) {
var left, right;
var ref, w;
var i;
left = a; right = b;
ref = arr[parseInt((a+b)/2)];
while(left <= right) { // csökkenő sorrendben
// Van komperáló függvény
if (cmpFunc) {
while (cmpFunc(arr[left],ref) == 1) { ++left; } // arr[left] > ref
while (cmpFunc(arr[right],ref) == -1) { --right; } // arr[right] < ref
}
// Nincs
else {
while (arr[left] > ref) { ++left; }
while (arr[right] < ref) { --right; }
}
if (left <= right) { // elemek cseréje
if (left != right) { //ha egyenlő, akkor nem cserél
w = arr[left];
arr[left] = arr[right];
arr[right] = w;
}
++left;
--right;
}
}
if (a < right) {
this.quicksort(arr, a, right, cmpFunc);
}
if (left < b) {
this.quicksort(arr, left, b, cmpFunc);
}
} // quicksort
/**
* Selection megszüntetése
*/
Aitia.Util.removeSelection = function() {
if (document.selection) {
try {
document.selection.empty();
} catch(e) {}
} else if (window.getSelection) {
window.getSelection().removeAllRanges();
} else {
try {
document.createElement("input").focus();
} catch(e) {}
}
} // removeSelection
Aitia.Util.timer = function(fn, id, time) {
if(this.timers[id]) {
clearTimeout(this.timers[id]);
this.timers[id] = null;
}
this.timers[id] = setTimeout(fn, time);
}
function arab2rom(number) {
ones = new Array('', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX');
decades = new Array('', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC');
hundreds = new Array('', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM');
tousands = new Array('', 'M', 'MM', 'MMM');
all = new Array(ones, decades, hundreds, tousands);
if (number > 3999) {
//alert('The number is greater than 3999!');
return '<ERROR>';
}
if (number < 1) {
//alert('The number is not positive!');
return '<ERROR>';
}
numstr = number.toString();
len = numstr.length;
romanstr = '';
// generation
for (i = 0; i < len; i++) {
romanstr += all[len - i - 1][numstr.charAt(i)];
}
return romanstr;
}
function rom2arab(romanstr) {
invalid_number_err = 'The string is not a valid roman numeral!';
//err = 'ERR';
err = null;
// maximal characters for a class, e.g. DCCC, XXXV, VIII
// tousands, hundreds, decades, ones
max = new Array(3, 4, 4, 4);
// can a class contain more characters or there must follow
// next class, i.e. after XC can follow only ones (V, I)
can_more = new Array(true, true, true, true);
simple = new Array(false, false, false, false);
// class chars counter: tousands, hundreds, decades, ones
counter = new Array(0, 0, 0, 0);
romanstr = romanstr.toUpperCase();
len = romanstr.length;
arab = 0;
for (i = 0; i < len; i++) {
switch (romanstr.charAt(i)) {
case 'M':
if ( ++counter[0] > max[0] || !can_more[0] ) {
//alert(invalid_number_err);
return err;
}
arab += 1000;
break;
case 'D':
can_more[0] = false;
if ( ++counter[1] > max[1] || !can_more[1] || simple[1] ) {
//alert(invalid_number_err);
return err;
}
switch (romanstr.charAt(i+1)) {
case 'M':
//alert(invalid_number_err);
return err;
default:
arab += 500;
simple[1] = true;
}
break;
case 'C':
can_more[0] = false;
if ( ++counter[1] > max[1] || !can_more[1] || simple[2] ) {
//alert(invalid_number_err);
return err;
}
switch (romanstr.charAt(i+1)) {
case 'M':
arab += 900;
i++;
can_more[1] = false;
break;
case 'D':
arab += 400;
i++;
can_more[1] = false;
break;
default:
arab += 100;
simple[1] = true;
}
break;
case 'L':
current = 2;
if ( ++counter[2] > max[2] || !can_more[2] || simple[2]) {
//alert(invalid_number_err);
return err;
}
switch (romanstr.charAt(i+1)) {
case 'M': case 'D': case 'C':
//alert(invalid_number_err);
return err;
default:
arab += 50;
simple[2] = true;
}
break;
case 'X':
current = 2;
if ( ++counter[2] > max[2] || !can_more[2] || simple[3] ) {
//alert(invalid_number_err);
return err;
}
switch (romanstr.charAt(i+1)) {
case 'M': case 'D':
//alert(invalid_number_err);
return err;
case 'C':
arab += 90;
i++;
can_more[2] = false;
break;
case 'L':
arab += 40;
i++;
can_more[2] = false;
break;
default:
arab += 10;
simple[2] = true;
}
break;
case 'V':
current = 3;
if ( ++counter[3] > max[3] || !can_more[3] || simple[3]) {
//alert(invalid_number_err);
return err;
}
switch (romanstr.charAt(i+1)) {
case 'M': case 'D': case 'C': case 'L': case 'X':
//alert(invalid_number_err);
return err;
default:
arab += 5;
simple[3] = true;
}
break;
case 'I':
current = 3;
if ( ++counter[3] > max[3] || !can_more[3] ) {
//alert(invalid_number_err);
return err;
}
switch (romanstr.charAt(i+1)) {
case 'M': case 'D': case 'C': case 'L':
//alert(invalid_number_err);
return err;
case 'X':
arab += 9;
i++;
can_more[3] = false;
break;
case 'V':
arab += 4;
i++;
can_more[3] = false;
break;
default:
arab += 1;
simple[3] = true;
}
break;
default:
//alert(invalid_number_err);
return err;
} // end switch (romanstr.charAt(i))
} // end for (i = 0; i < len; i++)
return arab;
}