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$.fn.resetUnitVal = function(){
this.each(function(){
var n = $(this).data("px")
$(this).unitVal(n)
});
}
$.fn.unitVal = function(n){
var s
if (typeof n === "undefined") {
s = $(this).val()
n = stringToMeasurement( s )
if (! n || isNaN(n)) {
n = $(this).data("px")
}
}
s = measurementToString( n )
$(this).val( s ).data("px", n)
return n
}
function measurementToString( n ) {
var s, ft, inch
switch (app.units) {
case 'm':
s = round(n/36 * 0.3048 * 100) / 100 + " m"
break
case 'ft':
ft = floor(n / 36)
inch = abs(round((n % 36) / 3))
s = ft + "'"
if (inch > 0) {
s += " " + inch + '"'
}
break
case 'px':
default:
s = round(n) + " px"
break
}
return s
}
function stringToMeasurement( s ) {
var ft, inch, ft_in, type
if (! s.match(/[0-9]/)) {
return NaN
}
if (s.indexOf("'") !== -1 || s.indexOf('"') !== -1 || s.indexOf('ft') !== -1) {
ft_in = s.match(/[0-9.]+/g)
if (ft_in.length >= 2) {
ft = parseFloat( ft_in[0] )
inch = parseFloat( ft_in[1] )
}
else if (ft_in.length == 1) {
if (s.indexOf('"') !== -1) {
ft = 0
inch = parseFloat( ft_in[0] )
}
else {
ft = parseFloat( ft_in[0] )
inch = 0
}
}
else {
ft = inch = 0
}
n = ft * 36 + inch * 3
}
else if (s.indexOf("m") !== -1) {
n = parseFloat(s.match(/[0-9.]+/)) * 36 / 0.3048
}
else if (s.indexOf("px") !== -1) {
n = parseFloat(s.match(/[0-9.]+/))
}
else {
n = abs( stringToMeasurement( s + app.units ) )
}
if (s.indexOf('-') !== -1) {
n *= -1
}
return n
}
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