[780] | 1 | /*!jQuery Knob*/ |
---|
| 2 | /** |
---|
| 3 | * Downward compatible, touchable dial |
---|
| 4 | * |
---|
| 5 | * Version: 1.2.0 (15/07/2012) |
---|
| 6 | * Requires: jQuery v1.7+ |
---|
| 7 | * |
---|
| 8 | * Copyright (c) 2012 Anthony Terrien |
---|
| 9 | * Under MIT and GPL licenses: |
---|
| 10 | * http://www.opensource.org/licenses/mit-license.php |
---|
| 11 | * http://www.gnu.org/licenses/gpl.html |
---|
| 12 | * |
---|
| 13 | * Thanks to vor, eskimoblood, spiffistan, FabrizioC |
---|
| 14 | */ |
---|
| 15 | (function($) { |
---|
| 16 | |
---|
| 17 | /** |
---|
| 18 | * Kontrol library |
---|
| 19 | */ |
---|
| 20 | "use strict"; |
---|
| 21 | |
---|
| 22 | /** |
---|
| 23 | * Definition of globals and core |
---|
| 24 | */ |
---|
| 25 | var k = {}, // kontrol |
---|
| 26 | max = Math.max, |
---|
| 27 | min = Math.min; |
---|
| 28 | |
---|
| 29 | k.c = {}; |
---|
| 30 | k.c.d = $(document); |
---|
| 31 | k.c.t = function (e) { |
---|
| 32 | return e.originalEvent.touches.length - 1; |
---|
| 33 | }; |
---|
| 34 | |
---|
| 35 | /** |
---|
| 36 | * Kontrol Object |
---|
| 37 | * |
---|
| 38 | * Definition of an abstract UI control |
---|
| 39 | * |
---|
| 40 | * Each concrete component must call this one. |
---|
| 41 | * <code> |
---|
| 42 | * k.o.call(this); |
---|
| 43 | * </code> |
---|
| 44 | */ |
---|
| 45 | k.o = function () { |
---|
| 46 | var s = this; |
---|
| 47 | |
---|
| 48 | this.o = null; // array of options |
---|
| 49 | this.$ = null; // jQuery wrapped element |
---|
| 50 | this.i = null; // mixed HTMLInputElement or array of HTMLInputElement |
---|
| 51 | this.g = null; // 2D graphics context for 'pre-rendering' |
---|
| 52 | this.v = null; // value ; mixed array or integer |
---|
| 53 | this.cv = null; // change value ; not commited value |
---|
| 54 | this.x = 0; // canvas x position |
---|
| 55 | this.y = 0; // canvas y position |
---|
| 56 | this.$c = null; // jQuery canvas element |
---|
| 57 | this.c = null; // rendered canvas context |
---|
| 58 | this.t = 0; // touches index |
---|
| 59 | this.isInit = false; |
---|
| 60 | this.fgColor = null; // main color |
---|
| 61 | this.pColor = null; // previous color |
---|
| 62 | this.dH = null; // draw hook |
---|
| 63 | this.cH = null; // change hook |
---|
| 64 | this.eH = null; // cancel hook |
---|
| 65 | this.rH = null; // release hook |
---|
| 66 | |
---|
| 67 | this.run = function () { |
---|
| 68 | var cf = function (e, conf) { |
---|
| 69 | var k; |
---|
| 70 | for (k in conf) { |
---|
| 71 | s.o[k] = conf[k]; |
---|
| 72 | } |
---|
| 73 | s.init(); |
---|
| 74 | s._configure() |
---|
| 75 | ._draw(); |
---|
| 76 | }; |
---|
| 77 | |
---|
| 78 | if(this.$.data('kontroled')) return; |
---|
| 79 | this.$.data('kontroled', true); |
---|
| 80 | |
---|
| 81 | this.extend(); |
---|
| 82 | this.o = $.extend( |
---|
| 83 | { |
---|
| 84 | // Config |
---|
| 85 | min : this.$.data('min') || 0, |
---|
| 86 | max : this.$.data('max') || 100, |
---|
| 87 | stopper : true, |
---|
| 88 | readOnly : this.$.data('readonly'), |
---|
| 89 | |
---|
| 90 | // UI |
---|
| 91 | cursor : (this.$.data('cursor') === true && 30) |
---|
| 92 | || this.$.data('cursor') |
---|
| 93 | || 0, |
---|
| 94 | thickness : this.$.data('thickness') || 0.35, |
---|
| 95 | lineCap : this.$.data('linecap') || 'butt', |
---|
| 96 | width : this.$.data('width') || 200, |
---|
| 97 | height : this.$.data('height') || 200, |
---|
| 98 | displayInput : this.$.data('displayinput') == null || this.$.data('displayinput'), |
---|
| 99 | displayPrevious : this.$.data('displayprevious'), |
---|
| 100 | fgColor : this.$.data('fgcolor') || '#87CEEB', |
---|
| 101 | inputColor: this.$.data('inputcolor') || this.$.data('fgcolor') || '#87CEEB', |
---|
| 102 | inline : false, |
---|
| 103 | step : this.$.data('step') || 1, |
---|
| 104 | |
---|
| 105 | // Hooks |
---|
| 106 | draw : null, // function () {} |
---|
| 107 | change : null, // function (value) {} |
---|
| 108 | cancel : null, // function () {} |
---|
| 109 | release : null // function (value) {} |
---|
| 110 | }, this.o |
---|
| 111 | ); |
---|
| 112 | |
---|
| 113 | // routing value |
---|
| 114 | if(this.$.is('fieldset')) { |
---|
| 115 | |
---|
| 116 | // fieldset = array of integer |
---|
| 117 | this.v = {}; |
---|
| 118 | this.i = this.$.find('input') |
---|
| 119 | this.i.each(function(k) { |
---|
| 120 | var $this = $(this); |
---|
| 121 | s.i[k] = $this; |
---|
| 122 | s.v[k] = $this.val(); |
---|
| 123 | |
---|
| 124 | $this.bind( |
---|
| 125 | 'change' |
---|
| 126 | , function () { |
---|
| 127 | var val = {}; |
---|
| 128 | val[k] = $this.val(); |
---|
| 129 | s.val(val); |
---|
| 130 | } |
---|
| 131 | ); |
---|
| 132 | }); |
---|
| 133 | this.$.find('legend').remove(); |
---|
| 134 | |
---|
| 135 | } else { |
---|
| 136 | // input = integer |
---|
| 137 | this.i = this.$; |
---|
| 138 | this.v = this.$.val(); |
---|
| 139 | (this.v == '') && (this.v = this.o.min); |
---|
| 140 | |
---|
| 141 | this.$.bind( |
---|
| 142 | 'change' |
---|
| 143 | , function () { |
---|
| 144 | s.val(s._validate(s.$.val())); |
---|
| 145 | } |
---|
| 146 | ); |
---|
| 147 | } |
---|
| 148 | |
---|
| 149 | (!this.o.displayInput) && this.$.hide(); |
---|
| 150 | |
---|
| 151 | this.$c = $('<canvas width="' + |
---|
| 152 | this.o.width + 'px" height="' + |
---|
| 153 | this.o.height + 'px"></canvas>'); |
---|
| 154 | this.c = this.$c[0].getContext("2d"); |
---|
| 155 | |
---|
| 156 | this.$ |
---|
| 157 | .wrap($('<div style="' + (this.o.inline ? 'display:inline;' : '') + |
---|
| 158 | 'width:' + this.o.width + 'px;height:' + |
---|
| 159 | this.o.height + 'px;"></div>')) |
---|
| 160 | .before(this.$c); |
---|
| 161 | |
---|
| 162 | if (this.v instanceof Object) { |
---|
| 163 | this.cv = {}; |
---|
| 164 | this.copy(this.v, this.cv); |
---|
| 165 | } else { |
---|
| 166 | this.cv = this.v; |
---|
| 167 | } |
---|
| 168 | |
---|
| 169 | this.$ |
---|
| 170 | .bind("configure", cf) |
---|
| 171 | .parent() |
---|
| 172 | .bind("configure", cf); |
---|
| 173 | |
---|
| 174 | this._listen() |
---|
| 175 | ._configure() |
---|
| 176 | ._xy() |
---|
| 177 | .init(); |
---|
| 178 | |
---|
| 179 | this.isInit = true; |
---|
| 180 | |
---|
| 181 | this._draw(); |
---|
| 182 | |
---|
| 183 | return this; |
---|
| 184 | }; |
---|
| 185 | |
---|
| 186 | this._draw = function () { |
---|
| 187 | |
---|
| 188 | // canvas pre-rendering |
---|
| 189 | var d = true, |
---|
| 190 | c = document.createElement('canvas'); |
---|
| 191 | |
---|
| 192 | c.width = s.o.width; |
---|
| 193 | c.height = s.o.height; |
---|
| 194 | s.g = c.getContext('2d'); |
---|
| 195 | |
---|
| 196 | s.clear(); |
---|
| 197 | |
---|
| 198 | s.dH |
---|
| 199 | && (d = s.dH()); |
---|
| 200 | |
---|
| 201 | (d !== false) && s.draw(); |
---|
| 202 | |
---|
| 203 | s.c.drawImage(c, 0, 0); |
---|
| 204 | c = null; |
---|
| 205 | }; |
---|
| 206 | |
---|
| 207 | this._touch = function (e) { |
---|
| 208 | |
---|
| 209 | var touchMove = function (e) { |
---|
| 210 | |
---|
| 211 | var v = s.xy2val( |
---|
| 212 | e.originalEvent.touches[s.t].pageX, |
---|
| 213 | e.originalEvent.touches[s.t].pageY |
---|
| 214 | ); |
---|
| 215 | |
---|
| 216 | if (v == s.cv) return; |
---|
| 217 | |
---|
| 218 | if ( |
---|
| 219 | s.cH |
---|
| 220 | && (s.cH(v) === false) |
---|
| 221 | ) return; |
---|
| 222 | |
---|
| 223 | |
---|
| 224 | s.change(s._validate(v)); |
---|
| 225 | s._draw(); |
---|
| 226 | }; |
---|
| 227 | |
---|
| 228 | // get touches index |
---|
| 229 | this.t = k.c.t(e); |
---|
| 230 | |
---|
| 231 | // First touch |
---|
| 232 | touchMove(e); |
---|
| 233 | |
---|
| 234 | // Touch events listeners |
---|
| 235 | k.c.d |
---|
| 236 | .bind("touchmove.k", touchMove) |
---|
| 237 | .bind( |
---|
| 238 | "touchend.k" |
---|
| 239 | , function () { |
---|
| 240 | k.c.d.unbind('touchmove.k touchend.k'); |
---|
| 241 | |
---|
| 242 | if ( |
---|
| 243 | s.rH |
---|
| 244 | && (s.rH(s.cv) === false) |
---|
| 245 | ) return; |
---|
| 246 | |
---|
| 247 | s.val(s.cv); |
---|
| 248 | } |
---|
| 249 | ); |
---|
| 250 | |
---|
| 251 | return this; |
---|
| 252 | }; |
---|
| 253 | |
---|
| 254 | this._mouse = function (e) { |
---|
| 255 | |
---|
| 256 | var mouseMove = function (e) { |
---|
| 257 | var v = s.xy2val(e.pageX, e.pageY); |
---|
| 258 | if (v == s.cv) return; |
---|
| 259 | |
---|
| 260 | if ( |
---|
| 261 | s.cH |
---|
| 262 | && (s.cH(v) === false) |
---|
| 263 | ) return; |
---|
| 264 | |
---|
| 265 | s.change(s._validate(v)); |
---|
| 266 | s._draw(); |
---|
| 267 | }; |
---|
| 268 | |
---|
| 269 | // First click |
---|
| 270 | mouseMove(e); |
---|
| 271 | |
---|
| 272 | // Mouse events listeners |
---|
| 273 | k.c.d |
---|
| 274 | .bind("mousemove.k", mouseMove) |
---|
| 275 | .bind( |
---|
| 276 | // Escape key cancel current change |
---|
| 277 | "keyup.k" |
---|
| 278 | , function (e) { |
---|
| 279 | if (e.keyCode === 27) { |
---|
| 280 | k.c.d.unbind("mouseup.k mousemove.k keyup.k"); |
---|
| 281 | |
---|
| 282 | if ( |
---|
| 283 | s.eH |
---|
| 284 | && (s.eH() === false) |
---|
| 285 | ) return; |
---|
| 286 | |
---|
| 287 | s.cancel(); |
---|
| 288 | } |
---|
| 289 | } |
---|
| 290 | ) |
---|
| 291 | .bind( |
---|
| 292 | "mouseup.k" |
---|
| 293 | , function (e) { |
---|
| 294 | k.c.d.unbind('mousemove.k mouseup.k keyup.k'); |
---|
| 295 | |
---|
| 296 | if ( |
---|
| 297 | s.rH |
---|
| 298 | && (s.rH(s.cv) === false) |
---|
| 299 | ) return; |
---|
| 300 | |
---|
| 301 | s.val(s.cv); |
---|
| 302 | } |
---|
| 303 | ); |
---|
| 304 | |
---|
| 305 | return this; |
---|
| 306 | }; |
---|
| 307 | |
---|
| 308 | this._xy = function () { |
---|
| 309 | var o = this.$c.offset(); |
---|
| 310 | this.x = o.left; |
---|
| 311 | this.y = o.top; |
---|
| 312 | return this; |
---|
| 313 | }; |
---|
| 314 | |
---|
| 315 | this._listen = function () { |
---|
| 316 | |
---|
| 317 | if (!this.o.readOnly) { |
---|
| 318 | this.$c |
---|
| 319 | .bind( |
---|
| 320 | "mousedown" |
---|
| 321 | , function (e) { |
---|
| 322 | e.preventDefault(); |
---|
| 323 | s._xy()._mouse(e); |
---|
| 324 | } |
---|
| 325 | ) |
---|
| 326 | .bind( |
---|
| 327 | "touchstart" |
---|
| 328 | , function (e) { |
---|
| 329 | e.preventDefault(); |
---|
| 330 | s._xy()._touch(e); |
---|
| 331 | } |
---|
| 332 | ); |
---|
| 333 | this.listen(); |
---|
| 334 | } else { |
---|
| 335 | this.$.attr('readonly', 'readonly'); |
---|
| 336 | } |
---|
| 337 | |
---|
| 338 | return this; |
---|
| 339 | }; |
---|
| 340 | |
---|
| 341 | this._configure = function () { |
---|
| 342 | |
---|
| 343 | // Hooks |
---|
| 344 | if (this.o.draw) this.dH = this.o.draw; |
---|
| 345 | if (this.o.change) this.cH = this.o.change; |
---|
| 346 | if (this.o.cancel) this.eH = this.o.cancel; |
---|
| 347 | if (this.o.release) this.rH = this.o.release; |
---|
| 348 | |
---|
| 349 | if (this.o.displayPrevious) { |
---|
| 350 | this.pColor = this.h2rgba(this.o.fgColor, "0.4"); |
---|
| 351 | this.fgColor = this.h2rgba(this.o.fgColor, "0.6"); |
---|
| 352 | } else { |
---|
| 353 | this.fgColor = this.o.fgColor; |
---|
| 354 | } |
---|
| 355 | |
---|
| 356 | return this; |
---|
| 357 | }; |
---|
| 358 | |
---|
| 359 | this._clear = function () { |
---|
| 360 | this.$c[0].width = this.$c[0].width; |
---|
| 361 | }; |
---|
| 362 | |
---|
| 363 | this._validate = function(v) { |
---|
| 364 | return (~~ (((v < 0) ? -0.5 : 0.5) + (v/this.o.step))) * this.o.step; |
---|
| 365 | }; |
---|
| 366 | |
---|
| 367 | // Abstract methods |
---|
| 368 | this.listen = function () {}; // on start, one time |
---|
| 369 | this.extend = function () {}; // each time configure triggered |
---|
| 370 | this.init = function () {}; // each time configure triggered |
---|
| 371 | this.change = function (v) {}; // on change |
---|
| 372 | this.val = function (v) {}; // on release |
---|
| 373 | this.xy2val = function (x, y) {}; // |
---|
| 374 | this.draw = function () {}; // on change / on release |
---|
| 375 | this.clear = function () { this._clear(); }; |
---|
| 376 | |
---|
| 377 | // Utils |
---|
| 378 | this.h2rgba = function (h, a) { |
---|
| 379 | var rgb; |
---|
| 380 | h = h.substring(1,7) |
---|
| 381 | rgb = [parseInt(h.substring(0,2),16) |
---|
| 382 | ,parseInt(h.substring(2,4),16) |
---|
| 383 | ,parseInt(h.substring(4,6),16)]; |
---|
| 384 | return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + a + ")"; |
---|
| 385 | }; |
---|
| 386 | |
---|
| 387 | this.copy = function (f, t) { |
---|
| 388 | for (var i in f) { t[i] = f[i]; } |
---|
| 389 | }; |
---|
| 390 | }; |
---|
| 391 | |
---|
| 392 | |
---|
| 393 | /** |
---|
| 394 | * k.Dial |
---|
| 395 | */ |
---|
| 396 | k.Dial = function () { |
---|
| 397 | k.o.call(this); |
---|
| 398 | |
---|
| 399 | this.startAngle = null; |
---|
| 400 | this.xy = null; |
---|
| 401 | this.radius = null; |
---|
| 402 | this.lineWidth = null; |
---|
| 403 | this.cursorExt = null; |
---|
| 404 | this.w2 = null; |
---|
| 405 | this.PI2 = 2*Math.PI; |
---|
| 406 | |
---|
| 407 | this.extend = function () { |
---|
| 408 | this.o = $.extend( |
---|
| 409 | { |
---|
| 410 | bgColor : this.$.data('bgcolor') || '#EEEEEE', |
---|
| 411 | angleOffset : this.$.data('angleoffset') || 0, |
---|
| 412 | angleArc : this.$.data('anglearc') || 360, |
---|
| 413 | inline : true |
---|
| 414 | }, this.o |
---|
| 415 | ); |
---|
| 416 | }; |
---|
| 417 | |
---|
| 418 | this.val = function (v) { |
---|
| 419 | if (null != v) { |
---|
| 420 | this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v; |
---|
| 421 | this.v = this.cv; |
---|
| 422 | this.$.val(this.v); |
---|
| 423 | this._draw(); |
---|
| 424 | } else { |
---|
| 425 | return this.v; |
---|
| 426 | } |
---|
| 427 | }; |
---|
| 428 | |
---|
| 429 | this.xy2val = function (x, y) { |
---|
| 430 | var a, ret; |
---|
| 431 | |
---|
| 432 | a = Math.atan2( |
---|
| 433 | x - (this.x + this.w2) |
---|
| 434 | , - (y - this.y - this.w2) |
---|
| 435 | ) - this.angleOffset; |
---|
| 436 | |
---|
| 437 | if(this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) { |
---|
| 438 | // if isset angleArc option, set to min if .5 under min |
---|
| 439 | a = 0; |
---|
| 440 | } else if (a < 0) { |
---|
| 441 | a += this.PI2; |
---|
| 442 | } |
---|
| 443 | |
---|
| 444 | ret = ~~ (0.5 + (a * (this.o.max - this.o.min) / this.angleArc)) |
---|
| 445 | + this.o.min; |
---|
| 446 | |
---|
| 447 | this.o.stopper |
---|
| 448 | && (ret = max(min(ret, this.o.max), this.o.min)); |
---|
| 449 | |
---|
| 450 | return ret; |
---|
| 451 | }; |
---|
| 452 | |
---|
| 453 | this.listen = function () { |
---|
| 454 | // bind MouseWheel |
---|
| 455 | var s = this, |
---|
| 456 | mw = function (e) { |
---|
| 457 | e.preventDefault(); |
---|
| 458 | var ori = e.originalEvent |
---|
| 459 | ,deltaX = ori.detail || ori.wheelDeltaX |
---|
| 460 | ,deltaY = ori.detail || ori.wheelDeltaY |
---|
| 461 | ,v = parseInt(s.$.val()) + (deltaX>0 || deltaY>0 ? s.o.step : deltaX<0 || deltaY<0 ? -s.o.step : 0); |
---|
| 462 | |
---|
| 463 | if ( |
---|
| 464 | s.cH |
---|
| 465 | && (s.cH(v) === false) |
---|
| 466 | ) return; |
---|
| 467 | |
---|
| 468 | s.val(v); |
---|
| 469 | } |
---|
| 470 | , kval, to, m = 1, kv = {37:-s.o.step, 38:s.o.step, 39:s.o.step, 40:-s.o.step}; |
---|
| 471 | |
---|
| 472 | this.$ |
---|
| 473 | .bind( |
---|
| 474 | "keydown" |
---|
| 475 | ,function (e) { |
---|
| 476 | var kc = e.keyCode; |
---|
| 477 | |
---|
| 478 | // numpad support |
---|
| 479 | if(kc >= 96 && kc <= 105) { |
---|
| 480 | kc = e.keyCode = kc - 48; |
---|
| 481 | } |
---|
| 482 | |
---|
| 483 | kval = parseInt(String.fromCharCode(kc)); |
---|
| 484 | |
---|
| 485 | if (isNaN(kval)) { |
---|
| 486 | |
---|
| 487 | (kc !== 13) // enter |
---|
| 488 | && (kc !== 8) // bs |
---|
| 489 | && (kc !== 9) // tab |
---|
| 490 | && (kc !== 189) // - |
---|
| 491 | && e.preventDefault(); |
---|
| 492 | |
---|
| 493 | // arrows |
---|
| 494 | if ($.inArray(kc,[37,38,39,40]) > -1) { |
---|
| 495 | e.preventDefault(); |
---|
| 496 | |
---|
| 497 | var v = parseInt(s.$.val()) + kv[kc] * m; |
---|
| 498 | |
---|
| 499 | s.o.stopper |
---|
| 500 | && (v = max(min(v, s.o.max), s.o.min)); |
---|
| 501 | |
---|
| 502 | s.change(v); |
---|
| 503 | s._draw(); |
---|
| 504 | |
---|
| 505 | // long time keydown speed-up |
---|
| 506 | to = window.setTimeout( |
---|
| 507 | function () { m*=2; } |
---|
| 508 | ,30 |
---|
| 509 | ); |
---|
| 510 | } |
---|
| 511 | } |
---|
| 512 | } |
---|
| 513 | ) |
---|
| 514 | .bind( |
---|
| 515 | "keyup" |
---|
| 516 | ,function (e) { |
---|
| 517 | if (isNaN(kval)) { |
---|
| 518 | if (to) { |
---|
| 519 | window.clearTimeout(to); |
---|
| 520 | to = null; |
---|
| 521 | m = 1; |
---|
| 522 | s.val(s.$.val()); |
---|
| 523 | } |
---|
| 524 | } else { |
---|
| 525 | // kval postcond |
---|
| 526 | (s.$.val() > s.o.max && s.$.val(s.o.max)) |
---|
| 527 | || (s.$.val() < s.o.min && s.$.val(s.o.min)); |
---|
| 528 | } |
---|
| 529 | |
---|
| 530 | } |
---|
| 531 | ); |
---|
| 532 | |
---|
| 533 | this.$c.bind("mousewheel DOMMouseScroll", mw); |
---|
| 534 | this.$.bind("mousewheel DOMMouseScroll", mw) |
---|
| 535 | }; |
---|
| 536 | |
---|
| 537 | this.init = function () { |
---|
| 538 | |
---|
| 539 | if ( |
---|
| 540 | this.v < this.o.min |
---|
| 541 | || this.v > this.o.max |
---|
| 542 | ) this.v = this.o.min; |
---|
| 543 | |
---|
| 544 | this.$.val(this.v); |
---|
| 545 | this.w2 = this.o.width / 2; |
---|
| 546 | this.cursorExt = this.o.cursor / 100; |
---|
| 547 | this.xy = this.w2; |
---|
| 548 | this.lineWidth = this.xy * this.o.thickness; |
---|
| 549 | this.lineCap = this.o.lineCap; |
---|
| 550 | this.radius = this.xy - this.lineWidth / 2; |
---|
| 551 | |
---|
| 552 | this.o.angleOffset |
---|
| 553 | && (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset); |
---|
| 554 | |
---|
| 555 | this.o.angleArc |
---|
| 556 | && (this.o.angleArc = isNaN(this.o.angleArc) ? this.PI2 : this.o.angleArc); |
---|
| 557 | |
---|
| 558 | // deg to rad |
---|
| 559 | this.angleOffset = this.o.angleOffset * Math.PI / 180; |
---|
| 560 | this.angleArc = this.o.angleArc * Math.PI / 180; |
---|
| 561 | |
---|
| 562 | // compute start and end angles |
---|
| 563 | this.startAngle = 1.5 * Math.PI + this.angleOffset; |
---|
| 564 | this.endAngle = 1.5 * Math.PI + this.angleOffset + this.angleArc; |
---|
| 565 | |
---|
| 566 | var s = max( |
---|
| 567 | String(Math.abs(this.o.max)).length |
---|
| 568 | , String(Math.abs(this.o.min)).length |
---|
| 569 | , 2 |
---|
| 570 | ) + 2; |
---|
| 571 | |
---|
| 572 | this.o.displayInput |
---|
| 573 | && this.i.css({ |
---|
| 574 | 'width' : ((this.o.width / 2 + 4) >> 0) + 'px' |
---|
| 575 | ,'height' : ((this.o.width / 3) >> 0) + 'px' |
---|
| 576 | ,'position' : 'absolute' |
---|
| 577 | ,'vertical-align' : 'middle' |
---|
| 578 | ,'margin-top' : ((this.o.width / 3) >> 0) + 'px' |
---|
| 579 | ,'margin-left' : '-' + ((this.o.width * 3 / 4 + 2) >> 0) + 'px' |
---|
| 580 | ,'border' : 0 |
---|
| 581 | ,'background' : 'none' |
---|
| 582 | ,'font' : 'bold ' + ((this.o.width / s) >> 0) + 'px Arial' |
---|
| 583 | ,'text-align' : 'center' |
---|
| 584 | ,'color' : this.o.inputColor || this.o.fgColor |
---|
| 585 | ,'padding' : '0px' |
---|
| 586 | ,'-webkit-appearance': 'none' |
---|
| 587 | }) |
---|
| 588 | || this.i.css({ |
---|
| 589 | 'width' : '0px' |
---|
| 590 | ,'visibility' : 'hidden' |
---|
| 591 | }); |
---|
| 592 | }; |
---|
| 593 | |
---|
| 594 | this.change = function (v) { |
---|
| 595 | this.cv = v; |
---|
| 596 | this.$.val(v); |
---|
| 597 | }; |
---|
| 598 | |
---|
| 599 | this.angle = function (v) { |
---|
| 600 | return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min); |
---|
| 601 | }; |
---|
| 602 | |
---|
| 603 | this.draw = function () { |
---|
| 604 | |
---|
| 605 | var c = this.g, // context |
---|
| 606 | a = this.angle(this.cv) // Angle |
---|
| 607 | , sat = this.startAngle // Start angle |
---|
| 608 | , eat = sat + a // End angle |
---|
| 609 | , sa, ea // Previous angles |
---|
| 610 | , r = 1; |
---|
| 611 | |
---|
| 612 | c.lineWidth = this.lineWidth; |
---|
| 613 | |
---|
| 614 | c.lineCap = this.lineCap; |
---|
| 615 | |
---|
| 616 | this.o.cursor |
---|
| 617 | && (sat = eat - this.cursorExt) |
---|
| 618 | && (eat = eat + this.cursorExt); |
---|
| 619 | |
---|
| 620 | c.beginPath(); |
---|
| 621 | c.strokeStyle = this.o.bgColor; |
---|
| 622 | c.arc(this.xy, this.xy, this.radius, this.endAngle, this.startAngle, true); |
---|
| 623 | c.stroke(); |
---|
| 624 | |
---|
| 625 | if (this.o.displayPrevious) { |
---|
| 626 | ea = this.startAngle + this.angle(this.v); |
---|
| 627 | sa = this.startAngle; |
---|
| 628 | this.o.cursor |
---|
| 629 | && (sa = ea - this.cursorExt) |
---|
| 630 | && (ea = ea + this.cursorExt); |
---|
| 631 | |
---|
| 632 | c.beginPath(); |
---|
| 633 | c.strokeStyle = this.pColor; |
---|
| 634 | c.arc(this.xy, this.xy, this.radius, sa, ea, false); |
---|
| 635 | c.stroke(); |
---|
| 636 | r = (this.cv == this.v); |
---|
| 637 | } |
---|
| 638 | |
---|
| 639 | c.beginPath(); |
---|
| 640 | c.strokeStyle = r ? this.o.fgColor : this.fgColor ; |
---|
| 641 | c.arc(this.xy, this.xy, this.radius, sat, eat, false); |
---|
| 642 | c.stroke(); |
---|
| 643 | }; |
---|
| 644 | |
---|
| 645 | this.cancel = function () { |
---|
| 646 | this.val(this.v); |
---|
| 647 | }; |
---|
| 648 | }; |
---|
| 649 | |
---|
| 650 | $.fn.dial = $.fn.knob = function (o) { |
---|
| 651 | return this.each( |
---|
| 652 | function () { |
---|
| 653 | var d = new k.Dial(); |
---|
| 654 | d.o = o; |
---|
| 655 | d.$ = $(this); |
---|
| 656 | d.run(); |
---|
| 657 | } |
---|
| 658 | ).parent(); |
---|
| 659 | }; |
---|
| 660 | |
---|
| 661 | })(jQuery); |
---|