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+/*!jQuery Knob*/
+/**
+ * Downward compatible, touchable dial
+ *
+ * Version: 1.2.0 (15/07/2012)
+ * Requires: jQuery v1.7+
+ *
+ * Copyright (c) 2012 Anthony Terrien
+ * Under MIT and GPL licenses:
+ * http://www.opensource.org/licenses/mit-license.php
+ * http://www.gnu.org/licenses/gpl.html
+ *
+ * Thanks to vor, eskimoblood, spiffistan, FabrizioC
+ */
+$(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; // 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.$c = null; // jQuery canvas element
+ this.c = null; // rendered canvas context
+ this.t = 0; // touches index
+ this.isInit = false;
+ this.fgColor = null; // main color
+ this.pColor = null; // previous color
+ this.dH = null; // draw hook
+ this.cH = null; // change hook
+ this.eH = null; // cancel hook
+ this.rH = null; // release hook
+
+ this.run = function () {
+ var cf = function (e, conf) {
+ var k;
+ for (k in conf) {
+ s.o[k] = conf[k];
+ }
+ s.init();
+ s._configure()
+ ._draw();
+ };
+
+ if(this.$.data('kontroled')) return;
+ this.$.data('kontroled', true);
+
+ this.extend();
+ this.o = $.extend(
+ {
+ // Config
+ min : this.$.data('min') || 0,
+ max : this.$.data('max') || 100,
+ stopper : true,
+ readOnly : this.$.data('readonly'),
+
+ // UI
+ cursor : (this.$.data('cursor') === true && 30)
+ || this.$.data('cursor')
+ || 0,
+ thickness : this.$.data('thickness') || 0.35,
+ width : this.$.data('width') || 200,
+ height : this.$.data('height') || 200,
+ displayInput : this.$.data('displayinput') == null || this.$.data('displayinput'),
+ displayPrevious : this.$.data('displayprevious'),
+ fgColor : this.$.data('fgcolor') || '#87CEEB',
+ inline : false,
+
+ // Hooks
+ draw : null, // function () {}
+ change : null, // function (value) {}
+ cancel : null, // function () {}
+ release : null // function (value) {}
+ }, this.o
+ );
+
+ // routing value
+ if(this.$.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] = $this.val();
+
+ $this.bind(
+ 'change'
+ , function () {
+ var val = {};
+ val[k] = $this.val();
+ s.val(val);
+ }
+ );
+ });
+ this.$.find('legend').remove();
+
+ } else {
+ // input = integer
+ this.i = this.$;
+ this.v = this.$.val();
+ (this.v == '') && (this.v = this.o.min);
+
+ this.$.bind(
+ 'change'
+ , function () {
+ s.val(s.$.val());
+ }
+ );
+ }
+
+ (!this.o.displayInput) && this.$.hide();
+
+ this.$c = $('<canvas width="' +
+ this.o.width + 'px" height="' +
+ this.o.height + 'px"></canvas>');
+ this.c = this.$c[0].getContext("2d");
+
+ this.$
+ .wrap($('<div style="' + (this.o.inline ? 'display:inline;' : '') +
+ 'width:' + this.o.width + 'px;height:' +
+ this.o.height + 'px;"></div>'))
+ .before(this.$c);
+
+ if (this.v instanceof Object) {
+ this.cv = {};
+ this.copy(this.v, this.cv);
+ } else {
+ this.cv = this.v;
+ }
+
+ this.$
+ .bind("configure", cf)
+ .parent()
+ .bind("configure", cf);
+
+ this._listen()
+ ._configure()
+ ._xy()
+ .init();
+
+ this.isInit = true;
+
+ this._draw();
+
+ return this;
+ };
+
+ this._draw = function () {
+
+ // canvas pre-rendering
+ var d = true,
+ c = document.createElement('canvas');
+
+ c.width = s.o.width;
+ c.height = s.o.height;
+ s.g = c.getContext('2d');
+
+ s.clear();
+
+ s.dH
+ && (d = s.dH());
+
+ (d !== false) && s.draw();
+
+ s.c.drawImage(c, 0, 0);
+ c = null;
+ };
+
+ 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(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');
+
+ if (
+ s.rH
+ && (s.rH(s.cv) === false)
+ ) return;
+
+ 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(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');
+
+ if (
+ s.rH
+ && (s.rH(s.cv) === false)
+ ) return;
+
+ 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.$.attr('readonly', 'readonly');
+ }
+
+ return this;
+ };
+
+ this._configure = function () {
+
+ // Hooks
+ if (this.o.draw) this.dH = this.o.draw;
+ if (this.o.change) this.cH = this.o.change;
+ if (this.o.cancel) this.eH = this.o.cancel;
+ if (this.o.release) this.rH = this.o.release;
+
+ if (this.o.displayPrevious) {
+ this.pColor = this.h2rgba(this.o.fgColor, "0.4");
+ this.fgColor = this.h2rgba(this.o.fgColor, "0.6");
+ } else {
+ this.fgColor = this.o.fgColor;
+ }
+
+ return this;
+ };
+
+ this._clear = function () {
+ this.$c[0].width = this.$c[0].width;
+ };
+
+ // 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) {
+ if (null != v) {
+ this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;
+ this.v = this.cv;
+ this.$.val(this.v);
+ this._draw();
+ } else {
+ return this.v;
+ }
+ };
+
+ this.xy2val = function (x, y) {
+ var a, ret;
+
+ a = Math.atan2(
+ x - (this.x + this.w2)
+ , - (y - this.y - this.w2)
+ ) - this.angleOffset;
+
+ if(this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) {
+ // if isset angleArc option, set to min if .5 under min
+ a = 0;
+ } else if (a < 0) {
+ a += this.PI2;
+ }
+
+ ret = ~~ (0.5 + (a * (this.o.max - this.o.min) / this.angleArc))
+ + this.o.min;
+
+ this.o.stopper
+ && (ret = max(min(ret, this.o.max), this.o.min));
+
+ return ret;
+ };
+
+ this.listen = function () {
+ // bind MouseWheel
+ var s = this,
+ mw = function (e) {
+ e.preventDefault();
+
+ var ori = e.originalEvent
+ ,deltaX = ori.detail || ori.wheelDeltaX
+ ,deltaY = ori.detail || ori.wheelDeltaY
+ ,v = parseInt(s.$.val()) + (deltaX>0 || deltaY>0 ? 1 : deltaX<0 || deltaY<0 ? -1 : 0);
+
+ if (
+ s.cH
+ && (s.cH(v) === false)
+ ) return;
+
+ s.val(v);
+ }
+ , kval, to, m = 1, kv = {37:-1, 38:1, 39:1, 40:-1};
+
+ this.$
+ .bind(
+ "keydown"
+ ,function (e) {
+ var kc = e.keyCode;
+ kval = parseInt(String.fromCharCode(kc));
+
+ if (isNaN(kval)) {
+
+ (kc !== 13) // enter
+ && (kc !== 8) // bs
+ && (kc !== 9) // tab
+ && (kc !== 189) // -
+ && e.preventDefault();
+
+ // arrows
+ if ($.inArray(kc,[37,38,39,40]) > -1) {
+ e.preventDefault();
+
+ var v = parseInt(s.$.val()) + kv[kc] * m;
+
+ s.o.stopper
+ && (v = max(min(v, s.o.max), s.o.min));
+
+ s.change(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.o.width / 2;
+ this.cursorExt = this.o.cursor / 100;
+ this.xy = this.w2;
+ this.lineWidth = this.xy * this.o.thickness;
+ 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.o.width / 2 + 4) >> 0) + 'px'
+ ,'height' : ((this.o.width / 3) >> 0) + 'px'
+ ,'position' : 'absolute'
+ ,'vertical-align' : 'middle'
+ ,'margin-top' : ((this.o.width / 3) >> 0) + 'px'
+ ,'margin-left' : '-' + ((this.o.width * 3 / 4 + 2) >> 0) + 'px'
+ ,'border' : 0
+ ,'background' : 'none'
+ ,'font' : 'bold ' + ((this.o.width / s) >> 0) + 'px Arial'
+ ,'text-align' : 'center'
+ ,'color' : this.o.fgColor
+ ,'padding' : '0px'
+ ,'-webkit-appearance': 'none'
+ })
+ || this.i.css({
+ 'width' : '0px'
+ ,'visibility' : 'hidden'
+ });
+ };
+
+ this.change = function (v) {
+ this.cv = v;
+ this.$.val(v);
+ };
+
+ this.angle = function (v) {
+ return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
+ };
+
+ this.draw = function () {
+
+ var c = this.g, // context
+ a = this.angle(this.cv) // Angle
+ , sat = this.startAngle // Start angle
+ , eat = sat + a // End angle
+ , sa, ea // Previous angles
+ , r = 1;
+
+ c.lineWidth = this.lineWidth;
+
+ this.o.cursor
+ && (sat = eat - this.cursorExt)
+ && (eat = eat + this.cursorExt);
+
+ c.beginPath();
+ c.strokeStyle = this.o.bgColor;
+ c.arc(this.xy, this.xy, this.radius, this.endAngle, this.startAngle, true);
+ c.stroke();
+
+ if (this.o.displayPrevious) {
+ ea = this.startAngle + this.angle(this.v);
+ sa = this.startAngle;
+ this.o.cursor
+ && (sa = ea - this.cursorExt)
+ && (ea = ea + this.cursorExt);
+
+ c.beginPath();
+ c.strokeStyle = this.pColor;
+ c.arc(this.xy, this.xy, this.radius, sa, ea, false);
+ 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, sat, eat, false);
+ 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();
+ };
+
+}); \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-14 18:46:58 +0000