806 lines
26 KiB
JavaScript
806 lines
26 KiB
JavaScript
|
/*!jQuery Knob*/
|
||
|
/**
|
||
|
* Downward compatible, touchable dial
|
||
|
*
|
||
|
* Version: 1.2.12
|
||
|
* Requires: jQuery v1.7+
|
||
|
*
|
||
|
* Copyright (c) 2012 Anthony Terrien
|
||
|
* Under MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||
|
*
|
||
|
* Thanks to vor, eskimoblood, spiffistan, FabrizioC
|
||
|
*/
|
||
|
(function (factory) {
|
||
|
if (typeof exports === 'object') {
|
||
|
// CommonJS
|
||
|
module.exports = factory(require('jquery'));
|
||
|
} else if (typeof define === 'function' && define.amd) {
|
||
|
// AMD. Register as an anonymous module.
|
||
|
define(['jquery'], factory);
|
||
|
} else {
|
||
|
// Browser globals
|
||
|
factory(jQuery);
|
||
|
}
|
||
|
}(function ($) {
|
||
|
|
||
|
/**
|
||
|
* Kontrol library
|
||
|
*/
|
||
|
"use strict";
|
||
|
|
||
|
/**
|
||
|
* Definition of globals and core
|
||
|
*/
|
||
|
var k = {}, // kontrol
|
||
|
max = Math.max,
|
||
|
min = Math.min;
|
||
|
|
||
|
k.c = {};
|
||
|
k.c.d = $(document);
|
||
|
k.c.t = function (e) {
|
||
|
return e.originalEvent.touches.length - 1;
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* Kontrol Object
|
||
|
*
|
||
|
* Definition of an abstract UI control
|
||
|
*
|
||
|
* Each concrete component must call this one.
|
||
|
* <code>
|
||
|
* k.o.call(this);
|
||
|
* </code>
|
||
|
*/
|
||
|
k.o = function () {
|
||
|
var s = this;
|
||
|
|
||
|
this.o = null; // array of options
|
||
|
this.$ = null; // jQuery wrapped element
|
||
|
this.i = null; // mixed HTMLInputElement or array of HTMLInputElement
|
||
|
this.g = null; // deprecated 2D graphics context for 'pre-rendering'
|
||
|
this.v = null; // value ; mixed array or integer
|
||
|
this.cv = null; // change value ; not commited value
|
||
|
this.x = 0; // canvas x position
|
||
|
this.y = 0; // canvas y position
|
||
|
this.w = 0; // canvas width
|
||
|
this.h = 0; // canvas height
|
||
|
this.$c = null; // jQuery canvas element
|
||
|
this.c = null; // rendered canvas context
|
||
|
this.t = 0; // touches index
|
||
|
this.isInit = false;
|
||
|
this.fgColor = null; // main color
|
||
|
this.pColor = null; // previous color
|
||
|
this.dH = null; // draw hook
|
||
|
this.cH = null; // change hook
|
||
|
this.eH = null; // cancel hook
|
||
|
this.rH = null; // release hook
|
||
|
this.scale = 1; // scale factor
|
||
|
this.relative = false;
|
||
|
this.relativeWidth = false;
|
||
|
this.relativeHeight = false;
|
||
|
this.$div = null; // component div
|
||
|
|
||
|
this.run = function () {
|
||
|
var cf = function (e, conf) {
|
||
|
var k;
|
||
|
for (k in conf) {
|
||
|
s.o[k] = conf[k];
|
||
|
}
|
||
|
s._carve().init();
|
||
|
s._configure()
|
||
|
._draw();
|
||
|
};
|
||
|
|
||
|
if (this.$.data('kontroled')) return;
|
||
|
this.$.data('kontroled', true);
|
||
|
|
||
|
this.extend();
|
||
|
this.o = $.extend({
|
||
|
// Config
|
||
|
min: this.$.data('min') !== undefined ? this.$.data('min') : 0,
|
||
|
max: this.$.data('max') !== undefined ? this.$.data('max') : 100,
|
||
|
stopper: true,
|
||
|
readOnly: this.$.data('readonly') || (this.$.attr('readonly') === 'readonly'),
|
||
|
|
||
|
// UI
|
||
|
cursor: this.$.data('cursor') === true && 30
|
||
|
|| this.$.data('cursor') || 0,
|
||
|
thickness: this.$.data('thickness')
|
||
|
&& Math.max(Math.min(this.$.data('thickness'), 1), 0.01)
|
||
|
|| 0.35,
|
||
|
lineCap: this.$.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.$.data('inputcolor'),
|
||
|
font: this.$.data('font') || 'Arial',
|
||
|
fontWeight: this.$.data('font-weight') || 'bold',
|
||
|
inline: false,
|
||
|
step: this.$.data('step') || 1,
|
||
|
rotation: this.$.data('rotation'),
|
||
|
|
||
|
// Hooks
|
||
|
draw: null, // function () {}
|
||
|
change: null, // function (value) {}
|
||
|
cancel: null, // function () {}
|
||
|
release: null, // function (value) {}
|
||
|
|
||
|
// Output formatting, allows to add unit: %, ms ...
|
||
|
format: function(v) {
|
||
|
return v;
|
||
|
},
|
||
|
parse: function (v) {
|
||
|
return parseFloat(v);
|
||
|
}
|
||
|
}, this.o
|
||
|
);
|
||
|
|
||
|
// finalize options
|
||
|
this.o.flip = this.o.rotation === 'anticlockwise' || this.o.rotation === 'acw';
|
||
|
if (!this.o.inputColor) {
|
||
|
this.o.inputColor = this.o.fgColor;
|
||
|
}
|
||
|
|
||
|
// routing value
|
||
|
if (this.$.is('fieldset')) {
|
||
|
|
||
|
// fieldset = array of integer
|
||
|
this.v = {};
|
||
|
this.i = this.$.find('input');
|
||
|
this.i.each(function(k) {
|
||
|
var $this = $(this);
|
||
|
s.i[k] = $this;
|
||
|
s.v[k] = s.o.parse($this.val());
|
||
|
|
||
|
$this.bind(
|
||
|
'change blur',
|
||
|
function () {
|
||
|
var val = {};
|
||
|
val[k] = $this.val();
|
||
|
s.val(s._validate(val));
|
||
|
}
|
||
|
);
|
||
|
});
|
||
|
this.$.find('legend').remove();
|
||
|
} else {
|
||
|
|
||
|
// input = integer
|
||
|
this.i = this.$;
|
||
|
this.v = this.o.parse(this.$.val());
|
||
|
this.v === '' && (this.v = this.o.min);
|
||
|
this.$.bind(
|
||
|
'change blur',
|
||
|
function () {
|
||
|
s.val(s._validate(s.o.parse(s.$.val())));
|
||
|
}
|
||
|
);
|
||
|
|
||
|
}
|
||
|
|
||
|
!this.o.displayInput && this.$.hide();
|
||
|
|
||
|
// adds needed DOM elements (canvas, div)
|
||
|
this.$c = $(document.createElement('canvas')).attr({
|
||
|
width: this.o.width,
|
||
|
height: this.o.height
|
||
|
});
|
||
|
|
||
|
// wraps all elements in a div
|
||
|
// add to DOM before Canvas init is triggered
|
||
|
this.$div = $('<div style="'
|
||
|
+ (this.o.inline ? 'display:inline;' : '')
|
||
|
+ 'width:' + this.o.width + 'px;height:' + this.o.height + 'px;'
|
||
|
+ '"></div>');
|
||
|
|
||
|
this.$.wrap(this.$div).before(this.$c);
|
||
|
this.$div = this.$.parent();
|
||
|
|
||
|
if (typeof G_vmlCanvasManager !== 'undefined') {
|
||
|
G_vmlCanvasManager.initElement(this.$c[0]);
|
||
|
}
|
||
|
|
||
|
this.c = this.$c[0].getContext ? this.$c[0].getContext('2d') : null;
|
||
|
|
||
|
if (!this.c) {
|
||
|
throw {
|
||
|
name: "CanvasNotSupportedException",
|
||
|
message: "Canvas not supported. Please use excanvas on IE8.0.",
|
||
|
toString: function(){return this.name + ": " + this.message}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// hdpi support
|
||
|
this.scale = (window.devicePixelRatio || 1) / (
|
||
|
this.c.webkitBackingStorePixelRatio ||
|
||
|
this.c.mozBackingStorePixelRatio ||
|
||
|
this.c.msBackingStorePixelRatio ||
|
||
|
this.c.oBackingStorePixelRatio ||
|
||
|
this.c.backingStorePixelRatio || 1
|
||
|
);
|
||
|
|
||
|
// detects relative width / height
|
||
|
this.relativeWidth = this.o.width % 1 !== 0
|
||
|
&& this.o.width.indexOf('%');
|
||
|
this.relativeHeight = this.o.height % 1 !== 0
|
||
|
&& this.o.height.indexOf('%');
|
||
|
this.relative = this.relativeWidth || this.relativeHeight;
|
||
|
|
||
|
// computes size and carves the component
|
||
|
this._carve();
|
||
|
|
||
|
// prepares props for transaction
|
||
|
if (this.v instanceof Object) {
|
||
|
this.cv = {};
|
||
|
this.copy(this.v, this.cv);
|
||
|
} else {
|
||
|
this.cv = this.v;
|
||
|
}
|
||
|
|
||
|
// binds configure event
|
||
|
this.$
|
||
|
.bind("configure", cf)
|
||
|
.parent()
|
||
|
.bind("configure", cf);
|
||
|
|
||
|
// finalize init
|
||
|
this._listen()
|
||
|
._configure()
|
||
|
._xy()
|
||
|
.init();
|
||
|
|
||
|
this.isInit = true;
|
||
|
|
||
|
this.$.val(this.o.format(this.v));
|
||
|
this._draw();
|
||
|
|
||
|
return this;
|
||
|
};
|
||
|
|
||
|
this._carve = function() {
|
||
|
if (this.relative) {
|
||
|
var w = this.relativeWidth ?
|
||
|
this.$div.parent().width() *
|
||
|
parseInt(this.o.width) / 100
|
||
|
: this.$div.parent().width(),
|
||
|
h = this.relativeHeight ?
|
||
|
this.$div.parent().height() *
|
||
|
parseInt(this.o.height) / 100
|
||
|
: this.$div.parent().height();
|
||
|
|
||
|
// apply relative
|
||
|
this.w = this.h = Math.min(w, h);
|
||
|
} else {
|
||
|
this.w = this.o.width;
|
||
|
this.h = this.o.height;
|
||
|
}
|
||
|
|
||
|
// finalize div
|
||
|
this.$div.css({
|
||
|
'width': this.w + 'px',
|
||
|
'height': this.h + 'px'
|
||
|
});
|
||
|
|
||
|
// finalize canvas with computed width
|
||
|
this.$c.attr({
|
||
|
width: this.w,
|
||
|
height: this.h
|
||
|
});
|
||
|
|
||
|
// scaling
|
||
|
if (this.scale !== 1) {
|
||
|
this.$c[0].width = this.$c[0].width * this.scale;
|
||
|
this.$c[0].height = this.$c[0].height * this.scale;
|
||
|
this.$c.width(this.w);
|
||
|
this.$c.height(this.h);
|
||
|
}
|
||
|
|
||
|
return this;
|
||
|
};
|
||
|
|
||
|
this._draw = function () {
|
||
|
|
||
|
// canvas pre-rendering
|
||
|
var d = true;
|
||
|
|
||
|
s.g = s.c;
|
||
|
|
||
|
s.clear();
|
||
|
|
||
|
s.dH && (d = s.dH());
|
||
|
|
||
|
d !== false && s.draw();
|
||
|
};
|
||
|
|
||
|
this._touch = function (e) {
|
||
|
var touchMove = function (e) {
|
||
|
var v = s.xy2val(
|
||
|
e.originalEvent.touches[s.t].pageX,
|
||
|
e.originalEvent.touches[s.t].pageY
|
||
|
);
|
||
|
|
||
|
if (v == s.cv) return;
|
||
|
|
||
|
if (s.cH && s.cH(v) === false) return;
|
||
|
|
||
|
s.change(s._validate(v));
|
||
|
s._draw();
|
||
|
};
|
||
|
|
||
|
// get touches index
|
||
|
this.t = k.c.t(e);
|
||
|
|
||
|
// First touch
|
||
|
touchMove(e);
|
||
|
|
||
|
// Touch events listeners
|
||
|
k.c.d
|
||
|
.bind("touchmove.k", touchMove)
|
||
|
.bind(
|
||
|
"touchend.k",
|
||
|
function () {
|
||
|
k.c.d.unbind('touchmove.k touchend.k');
|
||
|
s.val(s.cv);
|
||
|
}
|
||
|
);
|
||
|
|
||
|
return this;
|
||
|
};
|
||
|
|
||
|
this._mouse = function (e) {
|
||
|
var mouseMove = function (e) {
|
||
|
var v = s.xy2val(e.pageX, e.pageY);
|
||
|
|
||
|
if (v == s.cv) return;
|
||
|
|
||
|
if (s.cH && (s.cH(v) === false)) return;
|
||
|
|
||
|
s.change(s._validate(v));
|
||
|
s._draw();
|
||
|
};
|
||
|
|
||
|
// First click
|
||
|
mouseMove(e);
|
||
|
|
||
|
// Mouse events listeners
|
||
|
k.c.d
|
||
|
.bind("mousemove.k", mouseMove)
|
||
|
.bind(
|
||
|
// Escape key cancel current change
|
||
|
"keyup.k",
|
||
|
function (e) {
|
||
|
if (e.keyCode === 27) {
|
||
|
k.c.d.unbind("mouseup.k mousemove.k keyup.k");
|
||
|
|
||
|
if (s.eH && s.eH() === false)
|
||
|
return;
|
||
|
|
||
|
s.cancel();
|
||
|
}
|
||
|
}
|
||
|
)
|
||
|
.bind(
|
||
|
"mouseup.k",
|
||
|
function (e) {
|
||
|
k.c.d.unbind('mousemove.k mouseup.k keyup.k');
|
||
|
s.val(s.cv);
|
||
|
}
|
||
|
);
|
||
|
|
||
|
return this;
|
||
|
};
|
||
|
|
||
|
this._xy = function () {
|
||
|
var o = this.$c.offset();
|
||
|
this.x = o.left;
|
||
|
this.y = o.top;
|
||
|
|
||
|
return this;
|
||
|
};
|
||
|
|
||
|
this._listen = function () {
|
||
|
if (!this.o.readOnly) {
|
||
|
this.$c
|
||
|
.bind(
|
||
|
"mousedown",
|
||
|
function (e) {
|
||
|
e.preventDefault();
|
||
|
s._xy()._mouse(e);
|
||
|
}
|
||
|
)
|
||
|
.bind(
|
||
|
"touchstart",
|
||
|
function (e) {
|
||
|
e.preventDefault();
|
||
|
s._xy()._touch(e);
|
||
|
}
|
||
|
);
|
||
|
|
||
|
this.listen();
|
||
|
} else {
|
||
|
this.$.attr('readonly', 'readonly');
|
||
|
}
|
||
|
|
||
|
if (this.relative) {
|
||
|
$(window).resize(function() {
|
||
|
s._carve().init();
|
||
|
s._draw();
|
||
|
});
|
||
|
}
|
||
|
|
||
|
return this;
|
||
|
};
|
||
|
|
||
|
this._configure = function () {
|
||
|
|
||
|
// Hooks
|
||
|
if (this.o.draw) this.dH = this.o.draw;
|
||
|
if (this.o.change) this.cH = this.o.change;
|
||
|
if (this.o.cancel) this.eH = this.o.cancel;
|
||
|
if (this.o.release) this.rH = this.o.release;
|
||
|
|
||
|
if (this.o.displayPrevious) {
|
||
|
this.pColor = this.h2rgba(this.o.fgColor, "0.4");
|
||
|
this.fgColor = this.h2rgba(this.o.fgColor, "0.6");
|
||
|
} else {
|
||
|
this.fgColor = this.o.fgColor;
|
||
|
}
|
||
|
|
||
|
return this;
|
||
|
};
|
||
|
|
||
|
this._clear = function () {
|
||
|
this.$c[0].width = this.$c[0].width;
|
||
|
};
|
||
|
|
||
|
this._validate = function (v) {
|
||
|
var val = (~~ (((v < 0) ? -0.5 : 0.5) + (v/this.o.step))) * this.o.step;
|
||
|
return Math.round(val * 100) / 100;
|
||
|
};
|
||
|
|
||
|
// Abstract methods
|
||
|
this.listen = function () {}; // on start, one time
|
||
|
this.extend = function () {}; // each time configure triggered
|
||
|
this.init = function () {}; // each time configure triggered
|
||
|
this.change = function (v) {}; // on change
|
||
|
this.val = function (v) {}; // on release
|
||
|
this.xy2val = function (x, y) {}; //
|
||
|
this.draw = function () {}; // on change / on release
|
||
|
this.clear = function () { this._clear(); };
|
||
|
|
||
|
// Utils
|
||
|
this.h2rgba = function (h, a) {
|
||
|
var rgb;
|
||
|
h = h.substring(1,7);
|
||
|
rgb = [
|
||
|
parseInt(h.substring(0,2), 16),
|
||
|
parseInt(h.substring(2,4), 16),
|
||
|
parseInt(h.substring(4,6), 16)
|
||
|
];
|
||
|
|
||
|
return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + a + ")";
|
||
|
};
|
||
|
|
||
|
this.copy = function (f, t) {
|
||
|
for (var i in f) {
|
||
|
t[i] = f[i];
|
||
|
}
|
||
|
};
|
||
|
};
|
||
|
|
||
|
|
||
|
/**
|
||
|
* k.Dial
|
||
|
*/
|
||
|
k.Dial = function () {
|
||
|
k.o.call(this);
|
||
|
|
||
|
this.startAngle = null;
|
||
|
this.xy = null;
|
||
|
this.radius = null;
|
||
|
this.lineWidth = null;
|
||
|
this.cursorExt = null;
|
||
|
this.w2 = null;
|
||
|
this.PI2 = 2*Math.PI;
|
||
|
|
||
|
this.extend = function () {
|
||
|
this.o = $.extend({
|
||
|
bgColor: this.$.data('bgcolor') || '#EEEEEE',
|
||
|
angleOffset: this.$.data('angleoffset') || 0,
|
||
|
angleArc: this.$.data('anglearc') || 360,
|
||
|
inline: true
|
||
|
}, this.o);
|
||
|
};
|
||
|
|
||
|
this.val = function (v, triggerRelease) {
|
||
|
if (null != v) {
|
||
|
|
||
|
// reverse format
|
||
|
v = this.o.parse(v);
|
||
|
|
||
|
if (triggerRelease !== false
|
||
|
&& v != this.v
|
||
|
&& this.rH
|
||
|
&& this.rH(v) === false) { return; }
|
||
|
|
||
|
this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;
|
||
|
this.v = this.cv;
|
||
|
this.$.val(this.o.format(this.v));
|
||
|
this._draw();
|
||
|
} else {
|
||
|
return this.v;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
this.xy2val = function (x, y) {
|
||
|
var a, ret;
|
||
|
|
||
|
a = Math.atan2(
|
||
|
x - (this.x + this.w2),
|
||
|
- (y - this.y - this.w2)
|
||
|
) - this.angleOffset;
|
||
|
|
||
|
if (this.o.flip) {
|
||
|
a = this.angleArc - a - this.PI2;
|
||
|
}
|
||
|
|
||
|
if (this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) {
|
||
|
|
||
|
// if isset angleArc option, set to min if .5 under min
|
||
|
a = 0;
|
||
|
} else if (a < 0) {
|
||
|
a += this.PI2;
|
||
|
}
|
||
|
|
||
|
ret = (a * (this.o.max - this.o.min) / this.angleArc) + this.o.min;
|
||
|
|
||
|
this.o.stopper && (ret = max(min(ret, this.o.max), this.o.min));
|
||
|
|
||
|
return ret;
|
||
|
};
|
||
|
|
||
|
this.listen = function () {
|
||
|
|
||
|
// bind MouseWheel
|
||
|
var s = this, mwTimerStop,
|
||
|
mwTimerRelease,
|
||
|
mw = function (e) {
|
||
|
e.preventDefault();
|
||
|
|
||
|
var ori = e.originalEvent,
|
||
|
deltaX = ori.detail || ori.wheelDeltaX,
|
||
|
deltaY = ori.detail || ori.wheelDeltaY,
|
||
|
v = s._validate(s.o.parse(s.$.val()))
|
||
|
+ (
|
||
|
deltaX > 0 || deltaY > 0
|
||
|
? s.o.step
|
||
|
: deltaX < 0 || deltaY < 0 ? -s.o.step : 0
|
||
|
);
|
||
|
|
||
|
v = max(min(v, s.o.max), s.o.min);
|
||
|
|
||
|
s.val(v, false);
|
||
|
|
||
|
if (s.rH) {
|
||
|
// Handle mousewheel stop
|
||
|
clearTimeout(mwTimerStop);
|
||
|
mwTimerStop = setTimeout(function () {
|
||
|
s.rH(v);
|
||
|
mwTimerStop = null;
|
||
|
}, 100);
|
||
|
|
||
|
// Handle mousewheel releases
|
||
|
if (!mwTimerRelease) {
|
||
|
mwTimerRelease = setTimeout(function () {
|
||
|
if (mwTimerStop)
|
||
|
s.rH(v);
|
||
|
mwTimerRelease = null;
|
||
|
}, 200);
|
||
|
}
|
||
|
}
|
||
|
},
|
||
|
kval,
|
||
|
to,
|
||
|
m = 1,
|
||
|
kv = {
|
||
|
37: -s.o.step,
|
||
|
38: s.o.step,
|
||
|
39: s.o.step,
|
||
|
40: -s.o.step
|
||
|
};
|
||
|
|
||
|
this.$
|
||
|
.bind(
|
||
|
"keydown",
|
||
|
function (e) {
|
||
|
var kc = e.keyCode;
|
||
|
|
||
|
// numpad support
|
||
|
if (kc >= 96 && kc <= 105) {
|
||
|
kc = e.keyCode = kc - 48;
|
||
|
}
|
||
|
|
||
|
kval = parseInt(String.fromCharCode(kc));
|
||
|
|
||
|
if (isNaN(kval)) {
|
||
|
(kc !== 13) // enter
|
||
|
&& kc !== 8 // bs
|
||
|
&& kc !== 9 // tab
|
||
|
&& kc !== 189 // -
|
||
|
&& (kc !== 190
|
||
|
|| s.$.val().match(/\./)) // . allowed once
|
||
|
&& e.preventDefault();
|
||
|
|
||
|
// arrows
|
||
|
if ($.inArray(kc,[37,38,39,40]) > -1) {
|
||
|
e.preventDefault();
|
||
|
|
||
|
var v = s.o.parse(s.$.val()) + kv[kc] * m;
|
||
|
s.o.stopper && (v = max(min(v, s.o.max), s.o.min));
|
||
|
|
||
|
s.change(s._validate(v));
|
||
|
s._draw();
|
||
|
|
||
|
// long time keydown speed-up
|
||
|
to = window.setTimeout(function () {
|
||
|
m *= 2;
|
||
|
}, 30);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
)
|
||
|
.bind(
|
||
|
"keyup",
|
||
|
function (e) {
|
||
|
if (isNaN(kval)) {
|
||
|
if (to) {
|
||
|
window.clearTimeout(to);
|
||
|
to = null;
|
||
|
m = 1;
|
||
|
s.val(s.$.val());
|
||
|
}
|
||
|
} else {
|
||
|
// kval postcond
|
||
|
(s.$.val() > s.o.max && s.$.val(s.o.max))
|
||
|
|| (s.$.val() < s.o.min && s.$.val(s.o.min));
|
||
|
}
|
||
|
}
|
||
|
);
|
||
|
|
||
|
this.$c.bind("mousewheel DOMMouseScroll", mw);
|
||
|
this.$.bind("mousewheel DOMMouseScroll", mw);
|
||
|
};
|
||
|
|
||
|
this.init = function () {
|
||
|
if (this.v < this.o.min
|
||
|
|| this.v > this.o.max) { this.v = this.o.min; }
|
||
|
|
||
|
this.$.val(this.v);
|
||
|
this.w2 = this.w / 2;
|
||
|
this.cursorExt = this.o.cursor / 100;
|
||
|
this.xy = this.w2 * this.scale;
|
||
|
this.lineWidth = this.xy * this.o.thickness;
|
||
|
this.lineCap = this.o.lineCap;
|
||
|
this.radius = this.xy - this.lineWidth / 2;
|
||
|
|
||
|
this.o.angleOffset
|
||
|
&& (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset);
|
||
|
|
||
|
this.o.angleArc
|
||
|
&& (this.o.angleArc = isNaN(this.o.angleArc) ? this.PI2 : this.o.angleArc);
|
||
|
|
||
|
// deg to rad
|
||
|
this.angleOffset = this.o.angleOffset * Math.PI / 180;
|
||
|
this.angleArc = this.o.angleArc * Math.PI / 180;
|
||
|
|
||
|
// compute start and end angles
|
||
|
this.startAngle = 1.5 * Math.PI + this.angleOffset;
|
||
|
this.endAngle = 1.5 * Math.PI + this.angleOffset + this.angleArc;
|
||
|
|
||
|
var s = max(
|
||
|
String(Math.abs(this.o.max)).length,
|
||
|
String(Math.abs(this.o.min)).length,
|
||
|
2
|
||
|
) + 2;
|
||
|
|
||
|
this.o.displayInput
|
||
|
&& this.i.css({
|
||
|
'width' : ((this.w / 2 + 4) >> 0) + 'px',
|
||
|
'height' : ((this.w / 2) >> 0) + 'px',
|
||
|
'position' : 'absolute',
|
||
|
'vertical-align' : 'middle',
|
||
|
'margin-top' : ((this.w / 4) >> 0) + 'px',
|
||
|
'margin-left' : '-' + ((this.w * 3 / 4 + 2) >> 0) + 'px',
|
||
|
'border' : 0,
|
||
|
'background' : 'none',
|
||
|
'font' : this.o.fontWeight + ' ' + ((this.w / s) >> 0) + 'px ' + this.o.font,
|
||
|
'text-align' : 'center',
|
||
|
'color' : this.o.inputColor || this.o.fgColor,
|
||
|
'padding' : '0px',
|
||
|
'-webkit-appearance': 'none'
|
||
|
}) || this.i.css({
|
||
|
'width': '0px',
|
||
|
'visibility': 'hidden'
|
||
|
});
|
||
|
};
|
||
|
|
||
|
this.change = function (v) {
|
||
|
this.cv = v;
|
||
|
this.$.val(this.o.format(v));
|
||
|
};
|
||
|
|
||
|
this.angle = function (v) {
|
||
|
return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
|
||
|
};
|
||
|
|
||
|
this.arc = function (v) {
|
||
|
var sa, ea;
|
||
|
v = this.angle(v);
|
||
|
if (this.o.flip) {
|
||
|
sa = this.endAngle + 0.00001;
|
||
|
ea = sa - v - 0.00001;
|
||
|
} else {
|
||
|
sa = this.startAngle - 0.00001;
|
||
|
ea = sa + v + 0.00001;
|
||
|
}
|
||
|
this.o.cursor
|
||
|
&& (sa = ea - this.cursorExt)
|
||
|
&& (ea = ea + this.cursorExt);
|
||
|
|
||
|
return {
|
||
|
s: sa,
|
||
|
e: ea,
|
||
|
d: this.o.flip && !this.o.cursor
|
||
|
};
|
||
|
};
|
||
|
|
||
|
this.draw = function () {
|
||
|
var c = this.g, // context
|
||
|
a = this.arc(this.cv), // Arc
|
||
|
pa, // Previous arc
|
||
|
r = 1;
|
||
|
|
||
|
c.lineWidth = this.lineWidth;
|
||
|
c.lineCap = this.lineCap;
|
||
|
|
||
|
if (this.o.bgColor !== "none") {
|
||
|
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.stroke();
|
||
|
}
|
||
|
|
||
|
if (this.o.displayPrevious) {
|
||
|
pa = this.arc(this.v);
|
||
|
c.beginPath();
|
||
|
c.strokeStyle = this.pColor;
|
||
|
c.arc(this.xy, this.xy, this.radius, pa.s, pa.e, pa.d);
|
||
|
c.stroke();
|
||
|
r = this.cv == this.v;
|
||
|
}
|
||
|
|
||
|
c.beginPath();
|
||
|
c.strokeStyle = r ? this.o.fgColor : this.fgColor ;
|
||
|
c.arc(this.xy, this.xy, this.radius, a.s, a.e, a.d);
|
||
|
c.stroke();
|
||
|
};
|
||
|
|
||
|
this.cancel = function () {
|
||
|
this.val(this.v);
|
||
|
};
|
||
|
};
|
||
|
|
||
|
$.fn.dial = $.fn.knob = function (o) {
|
||
|
return this.each(
|
||
|
function () {
|
||
|
var d = new k.Dial();
|
||
|
d.o = o;
|
||
|
d.$ = $(this);
|
||
|
d.run();
|
||
|
}
|
||
|
).parent();
|
||
|
};
|
||
|
|
||
|
}));
|