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Update for border, innercolor, reversed cycling and countdown #146

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Update for border, innercolor, reversed cycling and countdown #146

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35 changes: 32 additions & 3 deletions js/jquery.knob.js
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Original file line number Diff line number Diff line change
Expand Up @@ -103,17 +103,22 @@
&& Math.max(Math.min(this.$.data('thickness'), 1), 0.01)
)
|| 0.35,
borderWidth: this.$.data('borderWidth') || 0,
borderColor: this.$.data('bordercolor') || '#FFFFFF',
lineCap : this.$.data('linecap') || 'butt',
width : this.$.data('width') || 200,
height : this.$.data('height') || 200,
displayInput : this.$.data('displayinput') == null || this.$.data('displayinput'),
displayPrevious : this.$.data('displayprevious'),
fgColor : this.$.data('fgcolor') || '#87CEEB',
inputColor: this.$.data('inputcolor'),
innerColor: this.$.data('innercolor') || 'transparent',
font: this.$.data('font') || 'Arial',
fontWeight: this.$.data('font-weight') || 'bold',
inline : false,
step : this.$.data('step') || 1,
reversed: this.$.data('reversed') || false,
countdown: this.$.data('countdown') || false,

// Hooks
draw : null, // function () {}
Expand Down Expand Up @@ -482,6 +487,7 @@
this.startAngle = null;
this.xy = null;
this.radius = null;
this.borderWidth = null;
this.lineWidth = null;
this.cursorExt = null;
this.w2 = null;
Expand Down Expand Up @@ -628,8 +634,9 @@
this.cursorExt = this.o.cursor / 100;
this.xy = this.w2 * this.scale;
this.lineWidth = this.xy * this.o.thickness;
this.borderWidth = this.o.borderWidth;
this.lineCap = this.o.lineCap;
this.radius = this.xy - this.lineWidth / 2;
this.radius = this.xy - this.lineWidth / 2 - this.borderWidth;

this.o.angleOffset
&& (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset);
Expand Down Expand Up @@ -683,7 +690,10 @@
};

this.angle = function (v) {
return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
if (this.o.countdown)
return (this.o.max - v) * this.angleArc / (this.o.max - this.o.min);
else
return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
};

this.draw = function () {
Expand All @@ -695,6 +705,11 @@
, sa, ea // Previous angles
, r = 1;

if (this.o.reversed) {
eat = this.startAngle;
sat = eat - a;
}

c.lineWidth = this.lineWidth;

c.lineCap = this.lineCap;
Expand All @@ -703,11 +718,25 @@
&& (sat = eat - this.cursorExt)
&& (eat = eat + this.cursorExt);

c.beginPath();
c.lineWidth = this.radius - this.lineWidth/2 + 1;
c.strokeStyle = this.o.innerColor;
c.arc(this.xy, this.xy, (this.radius - this.lineWidth/2)/2, this.endAngle + 0.01, this.startAngle - 0.01, true);
c.stroke();
c.lineWidth = this.lineWidth;

c.beginPath();
c.strokeStyle = this.o.bgColor;
c.arc(this.xy, this.xy, this.radius, this.endAngle - 0.00001, this.startAngle + 0.00001, true);
c.arc(this.xy, this.xy, this.radius, this.endAngle + 0.001, this.startAngle - 0.001, true);
c.stroke();

c.beginPath();
c.lineWidth = this.borderWidth;
c.strokeStyle = this.o.borderColor;
c.arc(this.xy, this.xy, this.radius + this.lineWidth/2 + this.borderWidth/2, this.endAngle + 0.001, this.startAngle - 0.001, true);
c.stroke();
c.lineWidth = this.lineWidth;

if (this.o.displayPrevious) {
ea = this.startAngle + this.angle(this.v);
sa = this.startAngle;
Expand Down