1 files changed, 82 insertions, 0 deletions
diff --git a/public/assets/javascripts/rectangles/util/measurement.js b/public/assets/javascripts/rectangles/util/measurement.js
new file mode 100644
index 0000000..d6a0b35
--- /dev/null
+++ b/public/assets/javascripts/rectangles/util/measurement.js
@@ -0,0 +1,82 @@
+$.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
+}