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1
/*!jQuery Knob*/
2
/**
3
 * Downward compatible, touchable dial
4
 *
5
 * Version: 1.2.11
6
 * Requires: jQuery v1.7+
7
 *
8
 * Copyright (c) 2012 Anthony Terrien
9
 * Under MIT License (http://www.opensource.org/licenses/mit-license.php)
10
 *
11
 * Thanks to vor, eskimoblood, spiffistan, FabrizioC
12
 */
13
(function (factory) {
14
    if (typeof exports === 'object') {
15
        // CommonJS
16
        module.exports = factory(require('jquery'));
17
    } else if (typeof define === 'function' && define.amd) {
18
        // AMD. Register as an anonymous module.
19
        define(['jquery'], factory);
20
    } else {
21
        // Browser globals
22
        factory(jQuery);
23
    }
24
}(function ($) {
25

    
26
    /**
27
     * Kontrol library
28
     */
29
    "use strict";
30

    
31
    /**
32
     * Definition of globals and core
33
     */
34
    var k = {}, // kontrol
35
        max = Math.max,
36
        min = Math.min;
37

    
38
    k.c = {};
39
    k.c.d = $(document);
40
    k.c.t = function (e) {
41
        return e.originalEvent.touches.length - 1;
42
    };
43

    
44
    /**
45
     * Kontrol Object
46
     *
47
     * Definition of an abstract UI control
48
     *
49
     * Each concrete component must call this one.
50
     * <code>
51
     * k.o.call(this);
52
     * </code>
53
     */
54
    k.o = function () {
55
        var s = this;
56

    
57
        this.o = null; // array of options
58
        this.$ = null; // jQuery wrapped element
59
        this.i = null; // mixed HTMLInputElement or array of HTMLInputElement
60
        this.g = null; // deprecated 2D graphics context for 'pre-rendering'
61
        this.v = null; // value ; mixed array or integer
62
        this.cv = null; // change value ; not commited value
63
        this.x = 0; // canvas x position
64
        this.y = 0; // canvas y position
65
        this.w = 0; // canvas width
66
        this.h = 0; // canvas height
67
        this.$c = null; // jQuery canvas element
68
        this.c = null; // rendered canvas context
69
        this.t = 0; // touches index
70
        this.isInit = false;
71
        this.fgColor = null; // main color
72
        this.pColor = null; // previous color
73
        this.dH = null; // draw hook
74
        this.cH = null; // change hook
75
        this.eH = null; // cancel hook
76
        this.rH = null; // release hook
77
        this.scale = 1; // scale factor
78
        this.relative = false;
79
        this.relativeWidth = false;
80
        this.relativeHeight = false;
81
        this.$div = null; // component div
82

    
83
        this.run = function () {
84
            var cf = function (e, conf) {
85
                var k;
86
                for (k in conf) {
87
                    s.o[k] = conf[k];
88
                }
89
                s._carve().init();
90
                s._configure()
91
                 ._draw();
92
            };
93

    
94
            if (this.$.data('kontroled')) return;
95
            this.$.data('kontroled', true);
96

    
97
            this.extend();
98
            this.o = $.extend({
99
                    // Config
100
                    min: this.$.data('min') !== undefined ? this.$.data('min') : 0,
101
                    max: this.$.data('max') !== undefined ? this.$.data('max') : 100,
102
                    stopper: true,
103
                    readOnly: this.$.data('readonly') || (this.$.attr('readonly') === 'readonly'),
104

    
105
                    // UI
106
                    cursor: this.$.data('cursor') === true && 30
107
                            || this.$.data('cursor') || 0,
108
                    thickness: this.$.data('thickness')
109
                               && Math.max(Math.min(this.$.data('thickness'), 1), 0.01)
110
                               || 0.35,
111
                    lineCap: this.$.data('linecap') || 'butt',
112
                    width: this.$.data('width') || 200,
113
                    height: this.$.data('height') || 200,
114
                    displayInput: this.$.data('displayinput') == null || this.$.data('displayinput'),
115
                    displayPrevious: this.$.data('displayprevious'),
116
                    fgColor: this.$.data('fgcolor') || '#87CEEB',
117
                    inputColor: this.$.data('inputcolor'),
118
                    font: this.$.data('font') || 'Arial',
119
                    fontWeight: this.$.data('font-weight') || 'bold',
120
                    inline: false,
121
                    step: this.$.data('step') || 1,
122
                    rotation: this.$.data('rotation'),
123

    
124
                    // Hooks
125
                    draw: null, // function () {}
126
                    change: null, // function (value) {}
127
                    cancel: null, // function () {}
128
                    release: null, // function (value) {}
129

    
130
                    // Output formatting, allows to add unit: %, ms ...
131
                    format: function(v) {
132
                        return v;
133
                    },
134
                    parse: function (v) {
135
                        return parseFloat(v);
136
                    }
137
                }, this.o
138
            );
139

    
140
            // finalize options
141
            this.o.flip = this.o.rotation === 'anticlockwise' || this.o.rotation === 'acw';
142
            if (!this.o.inputColor) {
143
                this.o.inputColor = this.o.fgColor;
144
            }
145

    
146
            // routing value
147
            if (this.$.is('fieldset')) {
148

    
149
                // fieldset = array of integer
150
                this.v = {};
151
                this.i = this.$.find('input');
152
                this.i.each(function(k) {
153
                    var $this = $(this);
154
                    s.i[k] = $this;
155
                    s.v[k] = s.o.parse($this.val());
156

    
157
                    $this.bind(
158
                        'change blur',
159
                        function () {
160
                            var val = {};
161
                            val[k] = $this.val();
162
                            s.val(s._validate(val));
163
                        }
164
                    );
165
                });
166
                this.$.find('legend').remove();
167
            } else {
168

    
169
                // input = integer
170
                this.i = this.$;
171
                this.v = this.o.parse(this.$.val());
172
                this.v === '' && (this.v = this.o.min);
173
                this.$.bind(
174
                    'change blur',
175
                    function () {
176
                        s.val(s._validate(s.o.parse(s.$.val())));
177
                    }
178
                );
179

    
180
            }
181

    
182
            !this.o.displayInput && this.$.hide();
183

    
184
            // adds needed DOM elements (canvas, div)
185
            this.$c = $(document.createElement('canvas')).attr({
186
                width: this.o.width,
187
                height: this.o.height
188
            });
189

    
190
            // wraps all elements in a div
191
            // add to DOM before Canvas init is triggered
192
            this.$div = $('<div style="'
193
                + (this.o.inline ? 'display:inline;' : '')
194
                + 'width:' + this.o.width + 'px;height:' + this.o.height + 'px;'
195
                + '"></div>');
196

    
197
            this.$.wrap(this.$div).before(this.$c);
198
            this.$div = this.$.parent();
199

    
200
            if (typeof G_vmlCanvasManager !== 'undefined') {
201
                G_vmlCanvasManager.initElement(this.$c[0]);
202
            }
203

    
204
            this.c = this.$c[0].getContext ? this.$c[0].getContext('2d') : null;
205

    
206
            if (!this.c) {
207
                throw {
208
                    name:        "CanvasNotSupportedException",
209
                    message:     "Canvas not supported. Please use excanvas on IE8.0.",
210
                    toString:    function(){return this.name + ": " + this.message}
211
                }
212
            }
213

    
214
            // hdpi support
215
            this.scale = (window.devicePixelRatio || 1) / (
216
                            this.c.webkitBackingStorePixelRatio ||
217
                            this.c.mozBackingStorePixelRatio ||
218
                            this.c.msBackingStorePixelRatio ||
219
                            this.c.oBackingStorePixelRatio ||
220
                            this.c.backingStorePixelRatio || 1
221
                         );
222

    
223
            // detects relative width / height
224
            this.relativeWidth =  this.o.width % 1 !== 0
225
                                  && this.o.width.indexOf('%');
226
            this.relativeHeight = this.o.height % 1 !== 0
227
                                  && this.o.height.indexOf('%');
228
            this.relative = this.relativeWidth || this.relativeHeight;
229

    
230
            // computes size and carves the component
231
            this._carve();
232

    
233
            // prepares props for transaction
234
            if (this.v instanceof Object) {
235
                this.cv = {};
236
                this.copy(this.v, this.cv);
237
            } else {
238
                this.cv = this.v;
239
            }
240

    
241
            // binds configure event
242
            this.$
243
                .bind("configure", cf)
244
                .parent()
245
                .bind("configure", cf);
246

    
247
            // finalize init
248
            this._listen()
249
                ._configure()
250
                ._xy()
251
                .init();
252

    
253
            this.isInit = true;
254

    
255
            this.$.val(this.o.format(this.v));
256
            this._draw();
257

    
258
            return this;
259
        };
260

    
261
        this._carve = function() {
262
            if (this.relative) {
263
                var w = this.relativeWidth ?
264
                        this.$div.parent().width() *
265
                        parseInt(this.o.width) / 100
266
                        : this.$div.parent().width(),
267
                    h = this.relativeHeight ?
268
                        this.$div.parent().height() *
269
                        parseInt(this.o.height) / 100
270
                        : this.$div.parent().height();
271

    
272
                // apply relative
273
                this.w = this.h = Math.min(w, h);
274
            } else {
275
                this.w = this.o.width;
276
                this.h = this.o.height;
277
            }
278

    
279
            // finalize div
280
            this.$div.css({
281
                'width': this.w + 'px',
282
                'height': this.h + 'px'
283
            });
284

    
285
            // finalize canvas with computed width
286
            this.$c.attr({
287
                width: this.w,
288
                height: this.h
289
            });
290

    
291
            // scaling
292
            if (this.scale !== 1) {
293
                this.$c[0].width = this.$c[0].width * this.scale;
294
                this.$c[0].height = this.$c[0].height * this.scale;
295
                this.$c.width(this.w);
296
                this.$c.height(this.h);
297
            }
298

    
299
            return this;
300
        }
301

    
302
        this._draw = function () {
303

    
304
            // canvas pre-rendering
305
            var d = true;
306

    
307
            s.g = s.c;
308

    
309
            s.clear();
310

    
311
            s.dH && (d = s.dH());
312

    
313
            d !== false && s.draw();
314
        };
315

    
316
        this._touch = function (e) {
317
            var touchMove = function (e) {
318
                var v = s.xy2val(
319
                            e.originalEvent.touches[s.t].pageX,
320
                            e.originalEvent.touches[s.t].pageY
321
                        );
322

    
323
                if (v == s.cv) return;
324

    
325
                if (s.cH && s.cH(v) === false) return;
326

    
327
                s.change(s._validate(v));
328
                s._draw();
329
            };
330

    
331
            // get touches index
332
            this.t = k.c.t(e);
333

    
334
            // First touch
335
            touchMove(e);
336

    
337
            // Touch events listeners
338
            k.c.d
339
                .bind("touchmove.k", touchMove)
340
                .bind(
341
                    "touchend.k",
342
                    function () {
343
                        k.c.d.unbind('touchmove.k touchend.k');
344
                        s.val(s.cv);
345
                    }
346
                );
347

    
348
            return this;
349
        };
350

    
351
        this._mouse = function (e) {
352
            var mouseMove = function (e) {
353
                var v = s.xy2val(e.pageX, e.pageY);
354

    
355
                if (v == s.cv) return;
356

    
357
                if (s.cH && (s.cH(v) === false)) return;
358

    
359
                s.change(s._validate(v));
360
                s._draw();
361
            };
362

    
363
            // First click
364
            mouseMove(e);
365

    
366
            // Mouse events listeners
367
            k.c.d
368
                .bind("mousemove.k", mouseMove)
369
                .bind(
370
                    // Escape key cancel current change
371
                    "keyup.k",
372
                    function (e) {
373
                        if (e.keyCode === 27) {
374
                            k.c.d.unbind("mouseup.k mousemove.k keyup.k");
375

    
376
                            if (s.eH && s.eH() === false)
377
                                return;
378

    
379
                            s.cancel();
380
                        }
381
                    }
382
                )
383
                .bind(
384
                    "mouseup.k",
385
                    function (e) {
386
                        k.c.d.unbind('mousemove.k mouseup.k keyup.k');
387
                        s.val(s.cv);
388
                    }
389
                );
390

    
391
            return this;
392
        };
393

    
394
        this._xy = function () {
395
            var o = this.$c.offset();
396
            this.x = o.left;
397
            this.y = o.top;
398

    
399
            return this;
400
        };
401

    
402
        this._listen = function () {
403
            if (!this.o.readOnly) {
404
                this.$c
405
                    .bind(
406
                        "mousedown",
407
                        function (e) {
408
                            e.preventDefault();
409
                            s._xy()._mouse(e);
410
                        }
411
                    )
412
                    .bind(
413
                        "touchstart",
414
                        function (e) {
415
                            e.preventDefault();
416
                            s._xy()._touch(e);
417
                        }
418
                    );
419

    
420
                this.listen();
421
            } else {
422
                this.$.attr('readonly', 'readonly');
423
            }
424

    
425
            if (this.relative) {
426
                $(window).resize(function() {
427
                    s._carve().init();
428
                    s._draw();
429
                });
430
            }
431

    
432
            return this;
433
        };
434

    
435
        this._configure = function () {
436

    
437
            // Hooks
438
            if (this.o.draw) this.dH = this.o.draw;
439
            if (this.o.change) this.cH = this.o.change;
440
            if (this.o.cancel) this.eH = this.o.cancel;
441
            if (this.o.release) this.rH = this.o.release;
442

    
443
            if (this.o.displayPrevious) {
444
                this.pColor = this.h2rgba(this.o.fgColor, "0.4");
445
                this.fgColor = this.h2rgba(this.o.fgColor, "0.6");
446
            } else {
447
                this.fgColor = this.o.fgColor;
448
            }
449

    
450
            return this;
451
        };
452

    
453
        this._clear = function () {
454
            this.$c[0].width = this.$c[0].width;
455
        };
456

    
457
        this._validate = function (v) {
458
            var val = (~~ (((v < 0) ? -0.5 : 0.5) + (v/this.o.step))) * this.o.step;
459
            return Math.round(val * 100) / 100;
460
        };
461

    
462
        // Abstract methods
463
        this.listen = function () {}; // on start, one time
464
        this.extend = function () {}; // each time configure triggered
465
        this.init = function () {}; // each time configure triggered
466
        this.change = function (v) {}; // on change
467
        this.val = function (v) {}; // on release
468
        this.xy2val = function (x, y) {}; //
469
        this.draw = function () {}; // on change / on release
470
        this.clear = function () { this._clear(); };
471

    
472
        // Utils
473
        this.h2rgba = function (h, a) {
474
            var rgb;
475
            h = h.substring(1,7)
476
            rgb = [
477
                parseInt(h.substring(0,2), 16),
478
                parseInt(h.substring(2,4), 16),
479
                parseInt(h.substring(4,6), 16)
480
            ];
481

    
482
            return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + a + ")";
483
        };
484

    
485
        this.copy = function (f, t) {
486
            for (var i in f) {
487
                t[i] = f[i];
488
            }
489
        };
490
    };
491

    
492

    
493
    /**
494
     * k.Dial
495
     */
496
    k.Dial = function () {
497
        k.o.call(this);
498

    
499
        this.startAngle = null;
500
        this.xy = null;
501
        this.radius = null;
502
        this.lineWidth = null;
503
        this.cursorExt = null;
504
        this.w2 = null;
505
        this.PI2 = 2*Math.PI;
506

    
507
        this.extend = function () {
508
            this.o = $.extend({
509
                bgColor: this.$.data('bgcolor') || '#EEEEEE',
510
                angleOffset: this.$.data('angleoffset') || 0,
511
                angleArc: this.$.data('anglearc') || 360,
512
                inline: true
513
            }, this.o);
514
        };
515

    
516
        this.val = function (v, triggerRelease) {
517
            if (null != v) {
518

    
519
                // reverse format
520
                v = this.o.parse(v);
521

    
522
                if (triggerRelease !== false
523
                    && v != this.v
524
                    && this.rH
525
                    && this.rH(v) === false) { return; }
526

    
527
                this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;
528
                this.v = this.cv;
529
                this.$.val(this.o.format(this.v));
530
                this._draw();
531
            } else {
532
                return this.v;
533
            }
534
        };
535

    
536
        this.xy2val = function (x, y) {
537
            var a, ret;
538

    
539
            a = Math.atan2(
540
                        x - (this.x + this.w2),
541
                        - (y - this.y - this.w2)
542
                    ) - this.angleOffset;
543

    
544
            if (this.o.flip) {
545
                a = this.angleArc - a - this.PI2;
546
            }
547

    
548
            if (this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) {
549

    
550
                // if isset angleArc option, set to min if .5 under min
551
                a = 0;
552
            } else if (a < 0) {
553
                a += this.PI2;
554
            }
555

    
556
            ret = (a * (this.o.max - this.o.min) / this.angleArc) + this.o.min;
557

    
558
            this.o.stopper && (ret = max(min(ret, this.o.max), this.o.min));
559

    
560
            return ret;
561
        };
562

    
563
        this.listen = function () {
564

    
565
            // bind MouseWheel
566
            var s = this, mwTimerStop,
567
                mwTimerRelease,
568
                mw = function (e) {
569
                    e.preventDefault();
570

    
571
                    var ori = e.originalEvent,
572
                        deltaX = ori.detail || ori.wheelDeltaX,
573
                        deltaY = ori.detail || ori.wheelDeltaY,
574
                        v = s._validate(s.o.parse(s.$.val()))
575
                            + (
576
                                deltaX > 0 || deltaY > 0
577
                                ? s.o.step
578
                                : deltaX < 0 || deltaY < 0 ? -s.o.step : 0
579
                              );
580

    
581
                    v = max(min(v, s.o.max), s.o.min);
582

    
583
                    s.val(v, false);
584

    
585
                    if (s.rH) {
586
                        // Handle mousewheel stop
587
                        clearTimeout(mwTimerStop);
588
                        mwTimerStop = setTimeout(function () {
589
                            s.rH(v);
590
                            mwTimerStop = null;
591
                        }, 100);
592

    
593
                        // Handle mousewheel releases
594
                        if (!mwTimerRelease) {
595
                            mwTimerRelease = setTimeout(function () {
596
                                if (mwTimerStop)
597
                                    s.rH(v);
598
                                mwTimerRelease = null;
599
                            }, 200);
600
                        }
601
                    }
602
                },
603
                kval,
604
                to,
605
                m = 1,
606
                kv = {
607
                    37: -s.o.step,
608
                    38: s.o.step,
609
                    39: s.o.step,
610
                    40: -s.o.step
611
                };
612

    
613
            this.$
614
                .bind(
615
                    "keydown",
616
                    function (e) {
617
                        var kc = e.keyCode;
618

    
619
                        // numpad support
620
                        if (kc >= 96 && kc <= 105) {
621
                            kc = e.keyCode = kc - 48;
622
                        }
623

    
624
                        kval = parseInt(String.fromCharCode(kc));
625

    
626
                        if (isNaN(kval)) {
627
                            (kc !== 13)                     // enter
628
                            && kc !== 8                     // bs
629
                            && kc !== 9                     // tab
630
                            && kc !== 189                   // -
631
                            && (kc !== 190
632
                                || s.$.val().match(/\./))   // . allowed once
633
                            && e.preventDefault();
634

    
635
                            // arrows
636
                            if ($.inArray(kc,[37,38,39,40]) > -1) {
637
                                e.preventDefault();
638

    
639
                                var v = s.o.parse(s.$.val()) + kv[kc] * m;
640
                                s.o.stopper && (v = max(min(v, s.o.max), s.o.min));
641

    
642
                                s.change(s._validate(v));
643
                                s._draw();
644

    
645
                                // long time keydown speed-up
646
                                to = window.setTimeout(function () {
647
                                    m *= 2;
648
                                }, 30);
649
                            }
650
                        }
651
                    }
652
                )
653
                .bind(
654
                    "keyup",
655
                    function (e) {
656
                        if (isNaN(kval)) {
657
                            if (to) {
658
                                window.clearTimeout(to);
659
                                to = null;
660
                                m = 1;
661
                                s.val(s.$.val());
662
                            }
663
                        } else {
664
                            // kval postcond
665
                            (s.$.val() > s.o.max && s.$.val(s.o.max))
666
                            || (s.$.val() < s.o.min && s.$.val(s.o.min));
667
                        }
668
                    }
669
                );
670

    
671
            this.$c.bind("mousewheel DOMMouseScroll", mw);
672
            this.$.bind("mousewheel DOMMouseScroll", mw)
673
        };
674

    
675
        this.init = function () {
676
            if (this.v < this.o.min
677
                || this.v > this.o.max) { this.v = this.o.min; }
678

    
679
            this.$.val(this.v);
680
            this.w2 = this.w / 2;
681
            this.cursorExt = this.o.cursor / 100;
682
            this.xy = this.w2 * this.scale;
683
            this.lineWidth = this.xy * this.o.thickness;
684
            this.lineCap = this.o.lineCap;
685
            this.radius = this.xy - this.lineWidth / 2;
686

    
687
            this.o.angleOffset
688
            && (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset);
689

    
690
            this.o.angleArc
691
            && (this.o.angleArc = isNaN(this.o.angleArc) ? this.PI2 : this.o.angleArc);
692

    
693
            // deg to rad
694
            this.angleOffset = this.o.angleOffset * Math.PI / 180;
695
            this.angleArc = this.o.angleArc * Math.PI / 180;
696

    
697
            // compute start and end angles
698
            this.startAngle = 1.5 * Math.PI + this.angleOffset;
699
            this.endAngle = 1.5 * Math.PI + this.angleOffset + this.angleArc;
700

    
701
            var s = max(
702
                String(Math.abs(this.o.max)).length,
703
                String(Math.abs(this.o.min)).length,
704
                2
705
            ) + 2;
706

    
707
            this.o.displayInput
708
                && this.i.css({
709
                        'width' : ((this.w / 2 + 4) >> 0) + 'px',
710
                        'height' : ((this.w / 3) >> 0) + 'px',
711
                        'position' : 'absolute',
712
                        'vertical-align' : 'middle',
713
                        'margin-top' : ((this.w / 3) >> 0) + 'px',
714
                        'margin-left' : '-' + ((this.w * 3 / 4 + 2) >> 0) + 'px',
715
                        'border' : 0,
716
                        'background' : 'none',
717
                        'font' : this.o.fontWeight + ' ' + ((this.w / s) >> 0) + 'px ' + this.o.font,
718
                        'text-align' : 'center',
719
                        'color' : this.o.inputColor || this.o.fgColor,
720
                        'padding' : '0px',
721
                        '-webkit-appearance': 'none'
722
                        }) || this.i.css({
723
                            'width': '0px',
724
                            'visibility': 'hidden'
725
                        });
726
        };
727

    
728
        this.change = function (v) {
729
            this.cv = v;
730
            this.$.val(this.o.format(v));
731
        };
732

    
733
        this.angle = function (v) {
734
            return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
735
        };
736

    
737
        this.arc = function (v) {
738
          var sa, ea;
739
          v = this.angle(v);
740
          if (this.o.flip) {
741
              sa = this.endAngle + 0.00001;
742
              ea = sa - v - 0.00001;
743
          } else {
744
              sa = this.startAngle - 0.00001;
745
              ea = sa + v + 0.00001;
746
          }
747
          this.o.cursor
748
              && (sa = ea - this.cursorExt)
749
              && (ea = ea + this.cursorExt);
750

    
751
          return {
752
              s: sa,
753
              e: ea,
754
              d: this.o.flip && !this.o.cursor
755
          };
756
        };
757

    
758
        this.draw = function () {
759
            var c = this.g,                 // context
760
                a = this.arc(this.cv),      // Arc
761
                pa,                         // Previous arc
762
                r = 1;
763

    
764
            c.lineWidth = this.lineWidth;
765
            c.lineCap = this.lineCap;
766

    
767
            if (this.o.bgColor !== "none") {
768
                c.beginPath();
769
                    c.strokeStyle = this.o.bgColor;
770
                    c.arc(this.xy, this.xy, this.radius, this.endAngle - 0.00001, this.startAngle + 0.00001, true);
771
                c.stroke();
772
            }
773

    
774
            if (this.o.displayPrevious) {
775
                pa = this.arc(this.v);
776
                c.beginPath();
777
                c.strokeStyle = this.pColor;
778
                c.arc(this.xy, this.xy, this.radius, pa.s, pa.e, pa.d);
779
                c.stroke();
780
                r = this.cv == this.v;
781
            }
782

    
783
            c.beginPath();
784
            c.strokeStyle = r ? this.o.fgColor : this.fgColor ;
785
            c.arc(this.xy, this.xy, this.radius, a.s, a.e, a.d);
786
            c.stroke();
787
        };
788

    
789
        this.cancel = function () {
790
            this.val(this.v);
791
        };
792
    };
793

    
794
    $.fn.dial = $.fn.knob = function (o) {
795
        return this.each(
796
            function () {
797
                var d = new k.Dial();
798
                d.o = o;
799
                d.$ = $(this);
800
                d.run();
801
            }
802
        ).parent();
803
    };
804

    
805
}));