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1414 lines
38 KiB
HTML
1414 lines
38 KiB
HTML
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<title>JSDoc: Source: visual/Slider.js</title>
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<h1 class="page-title">Source: visual/Slider.js</h1>
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<section>
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<article>
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<pre class="prettyprint source linenums"><code>/**
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* Slider Stimulus.
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*
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* @author Alain Pitiot
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* @version 2021.1.0
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* @copyright (c) 2017-2020 Ilixa Ltd. (http://ilixa.com) (c) 2020 Open Science Tools Ltd. (https://opensciencetools.org)
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* @license Distributed under the terms of the MIT License
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*/
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import {VisualStim} from './VisualStim';
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import {Color} from '../util/Color';
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import {ColorMixin} from '../util/ColorMixin';
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import {WindowMixin} from '../core/WindowMixin';
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import {Clock} from '../util/Clock';
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import * as util from '../util/Util';
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import {PsychoJS} from "../core/PsychoJS";
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/**
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* Slider stimulus.
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*
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* @name module:visual.Slider
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* @class
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* @extends module:visual.VisualStim
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* @mixes module:util.ColorMixin
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* @param {Object} options
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* @param {String} options.name - the name used when logging messages from this stimulus
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* @param {module:core.Window} options.win - the associated Window
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* @param {number[]} [options.pos= [0, 0]] - the position of the center of the slider
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* @param {number[]} options.size - the size of the slider, e.g. [1, 0.1] for an horizontal slider
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* @param {number} [options.ori = 0.0] - the orientation (in degrees)
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* @param {string} [options.units= 'height'] - the units of the Slider position, and font size
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*
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* @param {Color} [options.color= Color('LightGray')] the color of the slider
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* @param {number} [options.contrast= 1.0] - the contrast of the slider
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* @param {number} [options.opacity= 1.0] - the opacity of the slider
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*
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* @param {string} [options.style= [Slider.Style.RATING]] - the slider style
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* @param {number[]} [options.ticks= [1,2,3,4,5]] - the array of ticks
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* @param {number[]} [options.labels= []] - the array of labels
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* @param {number} [options.granularity= 0] - the granularity
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* @param {boolean} [options.flip= false] - whether or not to flip the position of the marker, ticks,
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* and labels with respect to the central bar
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* @param {boolean} [options.readOnly= false] - whether or not the slider is read only
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*
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* @param {string} [options.fontFamily= 'Helvetica'] - the text font
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* @param {boolean} [options.bold= true] - whether or not the font of the labels is bold
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* @param {boolean} [options.italic= false] - whether or not the font of the labels is italic
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* @param {number} [options.fontSize] - the font size of the labels (in pixels), the default fontSize depends on the
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* Slider's units: 14 for 'pix', 0.03 otherwise
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*
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* @param {boolean} [options.compact= false] - whether or not the slider is compact, i.e. whether all graphical
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* elements (e.g. labels) fit within its size
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*
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* @param {PIXI.Graphics} options.clipMask - the clip mask
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* @param {boolean} [options.autoDraw= false] - whether or not the stimulus should be automatically drawn on every
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* frame flip
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* @param {boolean} [options.autoLog= false] - whether or not to log
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*
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* @todo check that parameters are valid, e.g. ticks are an array of numbers, etc.
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* @todo readOnly
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* @todo complete setters, for instance setTicks should change this._isCategorical
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* @todo flesh out the skin approach
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*/
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export class Slider extends util.mix(VisualStim).with(ColorMixin, WindowMixin)
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{
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constructor({name, win, pos, size, ori, units, color, contrast, opacity, style, ticks, labels, granularity, flip, readOnly, font, bold, italic, fontSize, compact, clipMask, autoDraw, autoLog} = {})
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{
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super({name, win, units, ori, opacity, pos, size, clipMask, autoDraw, autoLog});
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this._needMarkerUpdate = false;
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// slider skin:
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this._skin = {};
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Object.assign(this._skin, Slider.Skin);
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// callback to deal with input sanitising:
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const onChange = (withPixi = false, withBoundingBox = false, withSanitize = false) =>
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{
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const visualOnChange = this._onChange(withPixi, withBoundingBox);
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return () =>
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{
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if (withSanitize)
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{
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this._sanitizeAttributes();
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}
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visualOnChange();
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};
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};
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this._addAttribute(
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'style',
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style,
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[Slider.Style.RATING],
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onChange(true, true, true)
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);
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this._addAttribute(
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'ticks',
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ticks,
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[1, 2, 3, 4, 5],
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onChange(true, true, true)
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);
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this._addAttribute(
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'labels',
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labels,
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[],
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onChange(true, true, true)
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);
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this._addAttribute(
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'granularity',
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granularity,
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0,
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this._onChange(false, false)
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);
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this._addAttribute(
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'readOnly',
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readOnly,
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false
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);
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this._addAttribute(
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'compact',
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compact,
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false,
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this._onChange(true, true)
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);
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// font:
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this._addAttribute(
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'font',
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font,
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'Helvetica',
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this._onChange(true, true)
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);
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this._addAttribute(
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'fontSize',
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fontSize,
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(this._units === 'pix') ? 14 : 0.03,
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this._onChange(true, true)
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);
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this._addAttribute(
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'bold',
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bold,
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true,
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this._onChange(true, true)
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);
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this._addAttribute(
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'italic',
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italic,
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false,
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this._onChange(true, true)
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);
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this._addAttribute(
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'flip',
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flip,
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false,
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this._onChange(true, true)
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);
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// color:
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this._addAttribute(
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'color',
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color,
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'lightgray',
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this._onChange(true, false)
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);
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this._addAttribute(
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'contrast',
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contrast,
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1.0,
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this._onChange(true, false)
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);
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// slider rating (which might be different from the visible marker rating):
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this._addAttribute('rating', undefined);
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// visible marker rating (which might be different from the actual rating):
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this._addAttribute('markerPos', undefined);
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// full history of ratings and response times:
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this._addAttribute('history', []);
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// various graphical components:
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this._addAttribute('lineAspectRatio', 0.01);
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// check for attribute conflicts, missing values, etc.:
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this._sanitizeAttributes();
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// estimate the bounding box:
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this._estimateBoundingBox();
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// the internal response clock, used to time the marker change events:
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this._responseClock = new Clock();
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if (this._autoLog)
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{
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this._psychoJS.experimentLogger.exp(`Created ${this.name} = ${this.toString()}`);
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}
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}
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/**
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* Force a refresh of the stimulus.
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*
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* @name module:visual.Slider#refresh
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* @public
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*/
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refresh()
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{
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super.refresh();
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this._needMarkerUpdate = true;
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}
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/**
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* Reset the slider.
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*
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* @name module:visual.Slider#reset
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* @public
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*/
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reset()
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{
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this.psychoJS.logger.debug('reset Slider: ', this._name);
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this._markerPos = undefined;
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this._history = [];
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this._rating = undefined;
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this._responseClock.reset();
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this.status = PsychoJS.Status.NOT_STARTED;
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this._needPixiUpdate = true;
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this._needUpdate = true;
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// the marker should be invisible when markerPos is undefined:
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if (typeof this._marker !== 'undefined')
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{
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this._marker.alpha = 0;
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}
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}
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/**
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* Get the current value of the rating.
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*
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* @name module:visual.Slider#getRating
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* @public
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* @returns {number | undefined} the rating or undefined if there is none
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*/
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getRating()
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{
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const historyLength = this._history.length;
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if (historyLength > 0)
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{
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return this._history[historyLength - 1].rating;
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}
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else
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{
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return undefined;
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}
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}
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/**
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* Get the response time of the most recent change to the rating.
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*
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* @name module:visual.Slider#getRT
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* @public
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* @returns {number | undefined} the response time (in second) or undefined if there is none
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*/
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getRT()
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{
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const historyLength = this._history.length;
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if (historyLength > 0)
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{
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return this._history[historyLength - 1].responseTime;
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}
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else
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{
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return undefined;
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}
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}
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/**
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* Setter for the readOnly attribute.
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*
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* <p>Read-only sliders are half-opaque and do not provide responses.</p>
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*
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*
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* @name module:visual.Slider#setReadOnly
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* @public
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* @param {boolean} [readOnly= true] - whether or not the slider is read-only
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* @param {boolean} [log= false] - whether of not to log
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*/
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setReadOnly(readOnly = true, log = false)
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{
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const hasChanged = this._setAttribute('readOnly', readOnly, log);
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if (hasChanged)
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{
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// halve the opacity:
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if (readOnly)
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{
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this._opacity /= 2.0;
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}
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else
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{
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this._opacity *= 2.0;
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}
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this._needUpdate = true;
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}
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}
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/**
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* Setter for the markerPos attribute.
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*
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* <p>Setting markerPos changes the visible position of the marker to the specified rating
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* but does not change the actual rating returned by the slider.</p>
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*
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*
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* @name module:visual.Slider#setMarkerPos
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* @public
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* @param {number} displayedRating - the displayed rating
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* @param {boolean} [log= false] - whether of not to log
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*/
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setMarkerPos(displayedRating, log = false)
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{
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const previousMarkerPos = this._markerPos;
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this._markerPos = this._granularise(displayedRating);
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// if the displayed rating has changed, we need to update the pixi representation:
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if (previousMarkerPos !== this._markerPos)
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{
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this._needMarkerUpdate = true;
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this._needUpdate = true;
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}
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}
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/**
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* Setter for the rating attribute.
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*
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* <p>Setting the rating does not change the visible position of the marker.</p>
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*
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* @name module:visual.Slider#setRating
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* @public
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* @param {number} rating - the rating
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* @param {boolean} [log= false] - whether of not to log
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*/
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setRating(rating, log = false)
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{
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rating = this._granularise(rating);
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this._markerPos = rating;
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if (this._isCategorical)
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{
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rating = this._labels[Math.round(rating)];
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}
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this._setAttribute('rating', rating, log);
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}
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/**
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* Estimate the bounding box.
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*
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* @note this method calculates the position of the labels, since that is necessary to the estimation of
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* the bounding box.
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*
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* @name module:visual.Slider#_estimateBoundingBox
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* @function
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* @override
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* @protected
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*/
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_estimateBoundingBox()
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{
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// setup the slider's style (taking into account the Window dimension, etc.):
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this._setupStyle();
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// calculate various values in pixel units:
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this._tickSize_px = util.to_px(this._tickSize, this._units, this._win);
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this._fontSize_px = this._getLengthPix(this._fontSize);
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this._barSize_px = util.to_px(this._barSize, this._units, this._win, true).map(v => Math.max(1, v));
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this._markerSize_px = util.to_px(this._markerSize, this._units, this._win, true);
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const pos_px = util.to_px(this._pos, this._units, this._win);
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const size_px = util.to_px(this._size, this._units, this._win);
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// calculate the position of the ticks:
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const tickPositions = this._ratingToPos(this._ticks);
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this._tickPositions_px = tickPositions.map(p => util.to_px(p, this._units, this._win));
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// left, top, right, bottom limits:
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const limits_px = [0, 0, size_px[0], size_px[1]];
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// Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY, Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY
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// estimate the position of the labels:
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this._labelPositions_px = new Array(this._labels.length);
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const labelTextStyle = this._getTextStyle();
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let prevLabelBounds = null;
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let prevNonOverlapOffset = 0;
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const tolerance = 10;
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for (let l = 0; l < this._labels.length; ++l)
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{
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const tickPositionIndex = Math.round( l / (this._labels.length - 1) * (this._ticks.length - 1) );
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this._labelPositions_px[l] = this._tickPositions_px[tickPositionIndex];
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const labelBounds = PIXI.TextMetrics.measureText(this._labels[l].toString(), labelTextStyle);
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// horizontal slider:
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if (this._isHorizontal())
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{
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if (this._flip)
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{
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this._labelPositions_px[l][1] -= labelBounds.height + this._tickSize_px[1];
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}
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else
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{
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this._labelPositions_px[l][1] += this._tickSize_px[1];
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}
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if (this._style.indexOf(Slider.Style.LABELS45) === -1)
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{
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this._labelPositions_px[l][0] -= labelBounds.width / 2;
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if (this._compact)
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{
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this._labelPositions_px[l][0] = Math.min(size_px[0] / 2 - labelBounds.width, Math.max(-size_px[0] / 2, this._labelPositions_px[l][0]));
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}
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// ensure that that labels are not overlapping:
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if (prevLabelBounds &&
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(this._labelPositions_px[l - 1][0] + prevLabelBounds.width + tolerance >= this._labelPositions_px[l][0]))
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{
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if (prevNonOverlapOffset === 0)
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{
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prevNonOverlapOffset = prevLabelBounds.height;
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this._labelPositions_px[l][1] += prevNonOverlapOffset;
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}
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else
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{
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prevNonOverlapOffset = 0;
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}
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}
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prevLabelBounds = labelBounds;
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}
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}
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// vertical slider:
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else
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{
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this._labelPositions_px[l][1] -= labelBounds.height / 2;
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if (this._compact)
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{
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this._labelPositions_px[l][1] = Math.min(size_px[1] / 2 - labelBounds.width, Math.max(-size_px[1] / 2, this._labelPositions_px[l][1]));
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}
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if (this._flip)
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{
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this._labelPositions_px[l][0] += this._tickSize_px[0] * 2;
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}
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else if (this._labelOri === 0)
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{
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this._labelPositions_px[l][0] -= labelBounds.width + this._tickSize_px[0] * 2;
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}
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else
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{
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this._labelPositions_px[l][0] -= this._tickSize_px[0];
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}
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}
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// update limits:
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limits_px[0] = Math.min(limits_px[0], this._labelPositions_px[l][0]);
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limits_px[1] = Math.min(limits_px[1], this._labelPositions_px[l][1]);
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limits_px[2] = Math.max(limits_px[2], this._labelPositions_px[l][0] + labelBounds.width);
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limits_px[3] = Math.max(limits_px[3], this._labelPositions_px[l][1] + labelBounds.height);
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}
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// adjust the limits by taking into account the ticks:
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if (this._isHorizontal())
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{
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limits_px[1] -= this._tickSize_px[1] * 2;
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}
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else
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{
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// TODO vertical
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}
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// calculate the bounding box, in the Slider's coordinates:
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const position_px = this._getPosition_px();
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this._boundingBox = new PIXI.Rectangle(
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this._getLengthUnits(position_px.x + limits_px[0]),
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this._getLengthUnits(position_px.y + limits_px[1]),
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this._getLengthUnits(limits_px[2] - limits_px[0]),
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this._getLengthUnits(limits_px[3] - limits_px[1])
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);
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}
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/**
|
|
* Sanitize the slider attributes: check for attribute conflicts, missing values, etc.
|
|
*
|
|
* @name module:visual.Slider#_sanitizeAttributes
|
|
* @function
|
|
* @protected
|
|
*/
|
|
_sanitizeAttributes()
|
|
{
|
|
// convert potential string styles into Symbols:
|
|
this._style.forEach( (style, index) =>
|
|
{
|
|
if (typeof style === 'string')
|
|
{
|
|
this._style[index] = Symbol.for(style.toUpperCase());
|
|
}
|
|
});
|
|
|
|
// TODO: only two ticks for SLIDER type, non-empty ticks, that RADIO is also categorical, etc.
|
|
|
|
// deal with categorical sliders:
|
|
this._isCategorical = (this._ticks.length === 0);
|
|
if (this._isCategorical)
|
|
{
|
|
this._ticks = [...Array(this._labels.length)].map( (_, i) => i );
|
|
this._granularity = 1.0;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Set the current rating.
|
|
*
|
|
* <p>Setting the rating does also change the visible position of the marker.</p>
|
|
*
|
|
* @name module:visual.Slider#recordRating
|
|
* @function
|
|
* @public
|
|
* @param {number} rating - the rating
|
|
* @param {number} [responseTime] - the reaction time
|
|
* @param {boolean} [log= false] - whether of not to log
|
|
*/
|
|
recordRating(rating, responseTime = undefined, log = false)
|
|
{
|
|
// get response time:
|
|
if (typeof responseTime === 'undefined')
|
|
{
|
|
responseTime = this._responseClock.getTime();
|
|
}
|
|
|
|
// set rating:
|
|
// rating = this._granularise(rating);
|
|
// this._setAttribute('rating', rating, log);
|
|
this.setRating(rating, log);
|
|
|
|
// add rating and response time to history:
|
|
this._history.push({rating: this._rating, responseTime});
|
|
this.psychoJS.logger.debug('record a new rating: ', this._rating, 'with response time: ', responseTime, 'for Slider: ', this._name);
|
|
|
|
// update slider:
|
|
this._needMarkerUpdate = true;
|
|
this._needUpdate = true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Update the stimulus, if necessary.
|
|
*
|
|
* @name module:visual.Slider#_updateIfNeeded
|
|
* @private
|
|
*/
|
|
_updateIfNeeded()
|
|
{
|
|
if (!this._needUpdate)
|
|
{
|
|
return;
|
|
}
|
|
this._needUpdate = false;
|
|
|
|
this._setupSlider();
|
|
this._updateMarker();
|
|
|
|
this._pixi.scale.x = 1;
|
|
this._pixi.scale.y = -1;
|
|
|
|
this._pixi.rotation = this._ori * Math.PI / 180;
|
|
this._pixi.position = this._getPosition_px();
|
|
|
|
this._pixi.alpha = this._opacity;
|
|
}
|
|
|
|
|
|
/**
|
|
* Estimate the position of the slider, taking the compactness into account.
|
|
*
|
|
* @name module:visual.Slider#_getPosition_px
|
|
* @return {number[]} - the position of the slider, in pixels
|
|
* @private
|
|
*/
|
|
_getPosition_px()
|
|
{
|
|
const position = util.to_pixiPoint(this.pos, this.units, this.win, true);
|
|
if (this._compact &&
|
|
(this._style.indexOf(Slider.Style.RADIO) > -1 || this._style.indexOf(Slider.Style.RATING) > -1))
|
|
{
|
|
if (this._isHorizontal())
|
|
{
|
|
position.y -= this._getLengthPix(this._tickSize[1]) * (this._flip ? -1 : 1);
|
|
}
|
|
else
|
|
{
|
|
position.x += this._getLengthPix(this._tickSize[0]) * (this._flip ? -1 : 1);
|
|
}
|
|
}
|
|
|
|
return position;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Update the position of the marker if necessary.
|
|
*
|
|
* @name module:visual.Slider#_updateMarker
|
|
* @private
|
|
*/
|
|
_updateMarker()
|
|
{
|
|
if (!this._needMarkerUpdate)
|
|
{
|
|
return;
|
|
}
|
|
this._needMarkerUpdate = false;
|
|
|
|
if (typeof this._marker !== 'undefined')
|
|
{
|
|
if (typeof this._markerPos !== 'undefined')
|
|
{
|
|
const visibleMarkerPos = this._ratingToPos([this._markerPos]);
|
|
this._marker.position = util.to_pixiPoint(visibleMarkerPos[0], this.units, this.win, true);
|
|
this._marker.alpha = 1;
|
|
}
|
|
else
|
|
{
|
|
this._marker.alpha = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Setup the PIXI components of the slider (bar, ticks, labels, marker, etc.).
|
|
*
|
|
* @name module:visual.Slider#_setupSlider
|
|
* @function
|
|
* @private
|
|
*/
|
|
_setupSlider()
|
|
{
|
|
if (!this._needPixiUpdate)
|
|
{
|
|
return;
|
|
}
|
|
this._needPixiUpdate = false;
|
|
|
|
this._setupStyle();
|
|
|
|
|
|
// calculate various values in pixel units:
|
|
this._tickSize_px = util.to_px(this._tickSize, this._units, this._win);
|
|
this._fontSize_px = this._getLengthPix(this._fontSize);
|
|
this._barSize_px = util.to_px(this._barSize, this._units, this._win, true).map(v => Math.max(1, v));
|
|
this._markerSize_px = util.to_px(this._markerSize, this._units, this._win, true);
|
|
const tickPositions = this._ratingToPos(this._ticks);
|
|
this._tickPositions_px = tickPositions.map(p => util.to_px(p, this._units, this._win));
|
|
|
|
|
|
if (typeof this._pixi !== 'undefined')
|
|
{
|
|
this._pixi.destroy(true);
|
|
}
|
|
this._pixi = new PIXI.Container();
|
|
this._pixi.interactive = true;
|
|
// apply the clip mask:
|
|
this._pixi.mask = this._clipMask;
|
|
|
|
this._body = new PIXI.Graphics();
|
|
this._body.interactive = true;
|
|
this._pixi.addChild(this._body);
|
|
|
|
|
|
// ensure that pointer events will be captured along the slider body, even outside of
|
|
// marker and labels:
|
|
if (this._tickType === Slider.Shape.DISC)
|
|
{
|
|
const maxTickSize_px = Math.max(this._tickSize_px[0], this._tickSize_px[1]);
|
|
this._body.hitArea = new PIXI.Rectangle(
|
|
-this._barSize_px[0] / 2 - maxTickSize_px,
|
|
-this._barSize_px[1] / 2 - maxTickSize_px,
|
|
this._barSize_px[0] + maxTickSize_px * 2,
|
|
this._barSize_px[1] + maxTickSize_px * 2);
|
|
}
|
|
else
|
|
{
|
|
this._body.hitArea = new PIXI.Rectangle(
|
|
-this._barSize_px[0] / 2 - this._tickSize_px[0] / 2,
|
|
-this._barSize_px[1] / 2 - this._tickSize_px[1] / 2,
|
|
this._barSize_px[0] + this._tickSize_px[0],
|
|
this._barSize_px[1] + this._tickSize_px[1]);
|
|
}
|
|
|
|
// central bar:
|
|
this._setupBar();
|
|
|
|
// ticks:
|
|
this._setupTicks();
|
|
|
|
// labels:
|
|
this._setupLabels();
|
|
|
|
// markers:
|
|
this._setupMarker();
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Setup the central bar.
|
|
*
|
|
* @name module:visual.Slider#_setupBar
|
|
* @function
|
|
* @private
|
|
*/
|
|
_setupBar()
|
|
{
|
|
if (this._barLineWidth_px > 0)
|
|
{
|
|
this._body.lineStyle(this._barLineWidth_px, this._barLineColor.int, 1, 0.5);
|
|
if (typeof this._barFillColor !== 'undefined')
|
|
{
|
|
this._body.beginFill(this._barFillColor.int, 1);
|
|
}
|
|
this._body.drawRect(
|
|
Math.round(-this._barSize_px[0] / 2),
|
|
Math.round(-this._barSize_px[1] / 2),
|
|
Math.round(this._barSize_px[0]),
|
|
Math.round(this._barSize_px[1])
|
|
);
|
|
if (typeof this._barFillColor !== 'undefined')
|
|
{
|
|
this._body.endFill();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Setup the marker, and the associated mouse events.
|
|
*
|
|
* @name module:visual.Slider#_setupMarker
|
|
* @function
|
|
* @private
|
|
*/
|
|
_setupMarker()
|
|
{
|
|
/* this is now deprecated and replaced by _body.hitArea
|
|
// transparent rectangle necessary to capture pointer events outside of marker and labels:
|
|
const eventCaptureRectangle = new PIXI.Graphics();
|
|
eventCaptureRectangle.beginFill(0, 0);
|
|
eventCaptureRectangle.drawRect(
|
|
-this._barSize_px[0] / 2 - this._tickSize_px[0] / 2,
|
|
-this._barSize_px[1] / 2 - this._tickSize_px[1] / 2,
|
|
this._barSize_px[0] + this._tickSize_px[0],
|
|
this._barSize_px[1] + this._tickSize_px[1]
|
|
);
|
|
eventCaptureRectangle.endFill();
|
|
this._pixi.addChild(eventCaptureRectangle);
|
|
*/
|
|
|
|
// marker:
|
|
this._marker = new PIXI.Graphics();
|
|
this._marker.alpha = 0; // invisible until markerPos is defined
|
|
this._marker.interactive = true;
|
|
this._pixi.addChild(this._marker);
|
|
|
|
const halfMarkerSize_px = Math.round(Math.max(...this._markerSize_px) / 2);
|
|
if (this._markerType === Slider.Shape.DISC)
|
|
{
|
|
this._marker.lineStyle(1, this._markerColor.int, 1, 0.5);
|
|
this._marker.beginFill(this._markerColor.int, 1);
|
|
this._marker.drawCircle(0, 0, halfMarkerSize_px);
|
|
this._marker.endFill();
|
|
}
|
|
else if (this._markerType === Slider.Shape.TRIANGLE)
|
|
{
|
|
this._marker.lineStyle(1, this._markerColor.int, 1, 0.5);
|
|
this._marker.beginFill(this._markerColor.int, 1);
|
|
this._marker.moveTo(0, 0);
|
|
if (this._isHorizontal())
|
|
{
|
|
if (this._flip)
|
|
{
|
|
this._marker.lineTo(halfMarkerSize_px, halfMarkerSize_px);
|
|
this._marker.lineTo(-halfMarkerSize_px, halfMarkerSize_px);
|
|
}
|
|
else
|
|
{
|
|
this._marker.lineTo(halfMarkerSize_px, -halfMarkerSize_px);
|
|
this._marker.lineTo(-halfMarkerSize_px, -halfMarkerSize_px);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (this._flip)
|
|
{
|
|
this._marker.lineTo(-halfMarkerSize_px, halfMarkerSize_px);
|
|
this._marker.lineTo(-halfMarkerSize_px, -halfMarkerSize_px);
|
|
}
|
|
else
|
|
{
|
|
this._marker.lineTo(halfMarkerSize_px, halfMarkerSize_px);
|
|
this._marker.lineTo(halfMarkerSize_px, -halfMarkerSize_px);
|
|
}
|
|
}
|
|
this._marker.endFill();
|
|
}
|
|
else if (this._markerType === Slider.Shape.BOX)
|
|
{
|
|
this._marker.lineStyle(1, this.getContrastedColor(this._markerColor, 0.5).int, 1, 0.5);
|
|
this._marker.beginFill(this._markerColor.int, 1);
|
|
this._marker.drawRect(
|
|
Math.round(-this._markerSize_px[0] / 2),
|
|
Math.round(-this._markerSize_px[1] / 2),
|
|
this._markerSize_px[0],
|
|
this._markerSize_px[1]
|
|
);
|
|
this._marker.endFill();
|
|
|
|
// this._marker.lineStyle(1, new Color('white').int, 1, 0.5);
|
|
// this._marker.drawCircle(0, 0, this._markerSize_px[0] / 3);
|
|
}
|
|
|
|
|
|
// marker mouse events:
|
|
const self = this;
|
|
self._markerDragging = false;
|
|
|
|
this._marker.pointerdown = this._marker.mousedown = this._marker.touchstart = (event) =>
|
|
{
|
|
if (event.data.button === 0)
|
|
{
|
|
self._markerDragging = true;
|
|
/* not quite right, just yet (as of May 2020)
|
|
// set markerPos, but not rating:
|
|
const mouseLocalPos_px = event.data.getLocalPosition(self._pixi);
|
|
const rating = self._posToRating([mouseLocalPos_px.x, mouseLocalPos_px.y]);
|
|
self._markerPos = self._granularise(rating);
|
|
|
|
self._needMarkerUpdate = true;
|
|
*/
|
|
}
|
|
|
|
event.stopPropagation();
|
|
};
|
|
|
|
// pointer was released inside the marker: if we were dragging, we record the rating
|
|
this._marker.pointerup = this._marker.mouseup = this._marker.touchend = (event) =>
|
|
{
|
|
if (self._markerDragging)
|
|
{
|
|
self._markerDragging = false;
|
|
|
|
const mouseLocalPos_px = event.data.getLocalPosition(self._pixi);
|
|
const rating = self._posToRating([mouseLocalPos_px.x, mouseLocalPos_px.y]);
|
|
self.recordRating(rating);
|
|
|
|
event.stopPropagation();
|
|
}
|
|
};
|
|
|
|
// pointer was released outside of the marker: cancel the dragging
|
|
this._marker.pointerupoutside = this._marker.mouseupoutside = this._marker.touchendoutside = (event) =>
|
|
{
|
|
if (self._markerDragging)
|
|
{
|
|
const mouseLocalPos_px = event.data.getLocalPosition(self._pixi);
|
|
const rating = self._posToRating([mouseLocalPos_px.x, mouseLocalPos_px.y]);
|
|
self.recordRating(rating);
|
|
|
|
self._markerDragging = false;
|
|
|
|
event.stopPropagation();
|
|
}
|
|
};
|
|
|
|
// pointer is moving: if we are dragging, we move the marker position
|
|
this._marker.pointermove = (event) =>
|
|
{
|
|
if (self._markerDragging)
|
|
{
|
|
const mouseLocalPos_px = event.data.getLocalPosition(self._pixi);
|
|
const rating = self._posToRating([mouseLocalPos_px.x, mouseLocalPos_px.y]);
|
|
self.setMarkerPos(rating);
|
|
|
|
event.stopPropagation();
|
|
}
|
|
};
|
|
|
|
|
|
// (*) slider mouse events outside of marker
|
|
// note: this only works thanks to eventCaptureRectangle
|
|
/* not quite right just yet (as of May 2020)
|
|
this._pixi.pointerdown = this._pixi.mousedown = this._pixi.touchstart = (event) =>
|
|
{
|
|
if (event.data.button === 0)
|
|
{
|
|
self._markerDragging = true;
|
|
|
|
// set markerPos, but not rating:
|
|
const mouseLocalPos_px = event.data.getLocalPosition(self._body);
|
|
const rating = self._posToRating([mouseLocalPos_px.x, mouseLocalPos_px.y]);
|
|
self._markerPos = self._granularise(rating);
|
|
|
|
// update the marker:
|
|
self._needMarkerUpdate = true;
|
|
self._updateMarker();
|
|
}
|
|
|
|
event.stopPropagation();
|
|
};
|
|
*/
|
|
|
|
this._pixi.pointerup = this._pixi.mouseup = this._pixi.touchend = (event) =>
|
|
{
|
|
const mouseLocalPos_px = event.data.getLocalPosition(self._body);
|
|
const rating = self._posToRating([mouseLocalPos_px.x, mouseLocalPos_px.y]);
|
|
self.recordRating(rating);
|
|
|
|
event.stopPropagation();
|
|
};
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Setup the ticks.
|
|
*
|
|
* @name module:visual.Slider#_setupTicks
|
|
* @function
|
|
* @private
|
|
*/
|
|
_setupTicks()
|
|
{
|
|
// Note: no ticks for SLIDER style
|
|
if (this._style.indexOf(Slider.Style.SLIDER) > -1)
|
|
{
|
|
return;
|
|
}
|
|
|
|
const maxTickSize = Math.max(this._tickSize_px[0], this._tickSize_px[1]);
|
|
|
|
this._body.lineStyle(this._barLineWidth_px * 2, this._tickColor.int, 1, 0.5);
|
|
|
|
for (let tickPosition_px of this._tickPositions_px)
|
|
{
|
|
if (this._tickType === Slider.Shape.LINE)
|
|
{
|
|
this._body.moveTo(tickPosition_px[0] - this._tickSize_px[0] / 2, tickPosition_px[1] - this._tickSize_px[1] / 2);
|
|
this._body.lineTo(tickPosition_px[0] + this._tickSize_px[0] / 2, tickPosition_px[1] + this._tickSize_px[1] / 2);
|
|
}
|
|
else if (this._tickType === Slider.Shape.DISC)
|
|
{
|
|
this._body.beginFill(this._tickColor.int, 1);
|
|
this._body.drawCircle(tickPosition_px[0], tickPosition_px[1], maxTickSize);
|
|
this._body.endFill();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Get the PIXI Text Style applied to the PIXI.Text labels.
|
|
*
|
|
* @name module:visual.Slider#_getTextStyle
|
|
* @function
|
|
* @private
|
|
*/
|
|
_getTextStyle()
|
|
{
|
|
this._fontSize_px = this._getLengthPix(this._fontSize);
|
|
|
|
return new PIXI.TextStyle({
|
|
fontFamily: this._font,
|
|
fontSize: Math.round(this._fontSize_px),
|
|
fontWeight: (this._bold) ? 'bold' : 'normal',
|
|
fontStyle: (this._italic) ? 'italic' : 'normal',
|
|
fill: this.getContrastedColor(this._labelColor, this._contrast).hex,
|
|
align: 'center',
|
|
});
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Setup the labels.
|
|
*
|
|
* @name module:visual.Slider#_setupTicks
|
|
* @function
|
|
* @private
|
|
*/
|
|
_setupLabels()
|
|
{
|
|
const labelTextStyle = this._getTextStyle();
|
|
|
|
for (let l = 0; l < this._labels.length; ++l)
|
|
{
|
|
const labelText = new PIXI.Text(this._labels[l], labelTextStyle);
|
|
labelText.position.x = this._labelPositions_px[l][0];
|
|
labelText.position.y = this._labelPositions_px[l][1];
|
|
labelText.rotation = (this._ori + this._labelOri) * Math.PI / 180;
|
|
labelText.anchor = this._labelAnchor;
|
|
labelText.alpha = 1;
|
|
|
|
this._pixi.addChild(labelText);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Apply a particular style to the slider.
|
|
*
|
|
* @note: We are mirroring PsychoPy here, rather than using a skin approach.
|
|
*
|
|
* @name module:visual.Slider#_setupStyle
|
|
* @function
|
|
* @private
|
|
*/
|
|
_setupStyle()
|
|
{
|
|
const isWhiteOnBlack = (this._style.indexOf(Slider.Style.WHITE_ON_BLACK) > -1);
|
|
const skin = (isWhiteOnBlack) ? this._skin.WHITE_ON_BLACK : this._skin.STANDARD;
|
|
|
|
// default style:
|
|
if (this._isHorizontal())
|
|
{
|
|
this._barSize = [this._size[0], 0];
|
|
this._tickSize = [0, this._size[1]];
|
|
this._labelAnchor = new PIXI.Point(0, 0);
|
|
}
|
|
else
|
|
{
|
|
this._barSize = [0, this._size[1]];
|
|
this._tickSize = [this._size[0], 0];
|
|
this._labelAnchor = new PIXI.Point(0, 0);
|
|
}
|
|
|
|
this._barLineWidth_px = 1;
|
|
this._barLineColor = (!skin.BAR_LINE_COLOR) ? new Color(this._color) : skin.BAR_LINE_COLOR;
|
|
this._barFillColor = undefined;
|
|
|
|
this._tickType = Slider.Shape.LINE;
|
|
this._tickColor = (!skin.TICK_COLOR) ? new Color(this._color) : skin.TICK_COLOR;
|
|
|
|
// this._markerColor = this.getContrastedColor(this._color, 0.3);
|
|
this._markerColor = skin.MARKER_COLOR;
|
|
this._markerType = Slider.Shape.DISC;
|
|
this._markerSize = (!this._skin.MARKER_SIZE) ? this._tickSize : this._skin.MARKER_SIZE;
|
|
|
|
this._labelColor = (!skin.LABEL_COLOR) ? new Color(this._color) : skin.LABEL_COLOR;
|
|
|
|
this._labelOri = 0;
|
|
|
|
|
|
// rating:
|
|
if (this._style.indexOf(Slider.Style.RATING) > -1)
|
|
{
|
|
// nothing to do
|
|
}
|
|
|
|
// triangleMarker:
|
|
if (this._style.indexOf(Slider.Style.TRIANGLE_MARKER) > -1)
|
|
{
|
|
this._markerType = Slider.Shape.TRIANGLE;
|
|
if (!this._skin.MARKER_SIZE)
|
|
{
|
|
this._markerSize = this._markerSize.map(s => s * 2);
|
|
}
|
|
}
|
|
|
|
// slider:
|
|
if (this._style.indexOf(Slider.Style.SLIDER) > -1)
|
|
{
|
|
this._markerType = Slider.Shape.BOX;
|
|
if (!this._skin.MARKER_SIZE)
|
|
{
|
|
this._markerSize = (this._isHorizontal()) ?
|
|
[this._size[0] / (this._ticks[this._ticks.length - 1] - this._ticks[0]), this._size[1]] :
|
|
[this._size[0], this._size[1] / (this._ticks[this._ticks.length - 1] - this._ticks[0])];
|
|
}
|
|
this._barSize = [this._size[0], this._size[1]];
|
|
this._barFillColor = this.getContrastedColor(new Color(this.color), 0.5);
|
|
}
|
|
|
|
/*
|
|
// whiteOnBlack:
|
|
if (isWhiteOnBlack)
|
|
{
|
|
this._barLineColor = skin.BAR_LINE_COLOR;
|
|
this._tickColor = skin.TICK_COLOR;
|
|
this._markerColor = skin.MARKER_COLOR;
|
|
this._labelColor = skin.LABEL_COLOR;
|
|
}
|
|
*/
|
|
|
|
// labels45:
|
|
if (this._style.indexOf(Slider.Style.LABELS45) > -1)
|
|
{
|
|
this._labelOri = -45;
|
|
if (this._flip)
|
|
{
|
|
this._labelAnchor = new PIXI.Point(0, 0.5);
|
|
}
|
|
else
|
|
{
|
|
this._labelAnchor = new PIXI.Point(1, 0);
|
|
}
|
|
}
|
|
|
|
// radio:
|
|
if (this._style.indexOf(Slider.Style.RADIO) > -1)
|
|
{
|
|
this._barLineWidth_px = 0;
|
|
this._tickType = Slider.Shape.DISC;
|
|
|
|
if (!this._skin.MARKER_SIZE)
|
|
{
|
|
this._markerSize = this._markerSize.map(s => s * 0.7);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Convert an array of ratings into an array of [x,y] positions (in Slider units, with 0 at the center of the Slider)
|
|
*
|
|
* @name module:visual.Slider#_ratingToPos
|
|
* @function
|
|
* @private
|
|
* @param {number[]} ratings - the array of ratings
|
|
* @returns {Array.<Array.<number>>} the positions corresponding to the ratings (in Slider units,
|
|
* with 0 at the center of the Slider)
|
|
*/
|
|
_ratingToPos(ratings)
|
|
{
|
|
const range = this._ticks[this._ticks.length - 1] - this._ticks[0];
|
|
if (this._isHorizontal())
|
|
{
|
|
// in compact mode the circular markers of RADIO sliders must fit within the width:
|
|
if (this._compact && this._style.indexOf(Slider.Style.RADIO) > -1)
|
|
{
|
|
return ratings.map(v => [
|
|
((v - this._ticks[0]) / range) * (this._size[0] - this._tickSize[1]*2) -
|
|
(this._size[0] / 2) + this._tickSize[1],
|
|
0]);
|
|
}
|
|
else if (this._style.indexOf(Slider.Style.SLIDER) > -1)
|
|
{
|
|
return ratings.map(v => [
|
|
((v - this._ticks[0]) / range - 0.5) * (this._size[0] - this._markerSize[0]),
|
|
0]);
|
|
}
|
|
else
|
|
{
|
|
return ratings.map(v => [((v - this._ticks[0]) / range - 0.5) * this._size[0], 0]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// in compact mode the circular markers of RADIO sliders must fit within the height:
|
|
if (this._compact && this._style.indexOf(Slider.Style.RADIO) > -1)
|
|
{
|
|
return ratings.map(v => [0,
|
|
((v - this._ticks[0]) / range) * (this._size[1] - this._tickSize[0]*2) -
|
|
(this._size[1] / 2) + this._tickSize[0]]);
|
|
}
|
|
else if (this._style.indexOf(Slider.Style.SLIDER) > -1)
|
|
{
|
|
return ratings.map(v => [
|
|
0,
|
|
((v - this._ticks[0]) / range - 0.5) * (this._size[1] - this._markerSize[1])]);
|
|
}
|
|
else
|
|
{
|
|
return ratings.map(v => [0, (1.0 - (v - this._ticks[0]) / range - 0.5) * this._size[1]]);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Convert a [x,y] position, in pixel units, relative to the slider, into a rating.
|
|
*
|
|
* @name module:visual.Slider#_posToRating
|
|
* @function
|
|
* @private
|
|
* @param {number[]} pos_px - the [x,y] position, in pixel units, relative to the slider.
|
|
* @returns {number} the corresponding rating.
|
|
*/
|
|
_posToRating(pos_px)
|
|
{
|
|
const range = this._ticks[this._ticks.length - 1] - this._ticks[0];
|
|
const size_px = util.to_px(this._size, this._units, this._win);
|
|
const markerSize_px = util.to_px(this._markerSize, this._units, this._win);
|
|
|
|
if (this._isHorizontal())
|
|
{
|
|
if (this._style.indexOf(Slider.Style.SLIDER) > -1)
|
|
{
|
|
return (pos_px[0] / (size_px[0] - markerSize_px[0]) + 0.5) * range + this._ticks[0];
|
|
}
|
|
else
|
|
{
|
|
return (pos_px[0] / size_px[0] + 0.5) * range + this._ticks[0];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (this._style.indexOf(Slider.Style.SLIDER) > -1)
|
|
{
|
|
return (pos_px[1] / (size_px[1] - markerSize_px[1]) + 0.5) * range + this._ticks[0];
|
|
}
|
|
else
|
|
{
|
|
return (1.0 - (pos_px[1] / size_px[1] + 0.5)) * range + this._ticks[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Determine whether the slider is horizontal.
|
|
*
|
|
* <p>The slider is horizontal is its x-axis size is larger than its y-axis size.</p>
|
|
*
|
|
* @name module:visual.Slider#_isHorizontal
|
|
* @function
|
|
* @private
|
|
* @returns {boolean} whether or not the slider is horizontal
|
|
*/
|
|
_isHorizontal()
|
|
{
|
|
return (this._size[0] > this._size[1]);
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Calculate the rating once granularity has been taken into account.
|
|
*
|
|
* @name module:visual.Slider#_granularise
|
|
* @function
|
|
* @private
|
|
* @param {number} rating - the input rating
|
|
* @returns {number} the new rating with granularity applied
|
|
*/
|
|
_granularise(rating)
|
|
{
|
|
if (typeof rating === 'undefined')
|
|
{
|
|
return undefined;
|
|
}
|
|
|
|
if (this._granularity > 0)
|
|
{
|
|
rating = Math.round(rating / this._granularity) * this._granularity;
|
|
}
|
|
rating = Math.min(Math.max(this._ticks[0], rating), this._ticks[this._ticks.length - 1]);
|
|
|
|
return rating;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* Shape of the marker and of the ticks.
|
|
*
|
|
* @name module:visual.Slider#Shape
|
|
* @enum {Symbol}
|
|
* @readonly
|
|
* @public
|
|
*/
|
|
Slider.Shape = {
|
|
DISC: Symbol.for('DISC'),
|
|
TRIANGLE: Symbol.for('TRIANGLE'),
|
|
LINE: Symbol.for('LINE'),
|
|
BOX: Symbol.for('BOX')
|
|
};
|
|
|
|
|
|
/**
|
|
* Styles.
|
|
*
|
|
* @name module:visual.Slider#Style
|
|
* @enum {Symbol}
|
|
* @readonly
|
|
* @public
|
|
*/
|
|
Slider.Style = {
|
|
RATING: Symbol.for('RATING'),
|
|
TRIANGLE_MARKER: Symbol.for('TRIANGLEMARKER'),
|
|
SLIDER: Symbol.for('SLIDER'),
|
|
WHITE_ON_BLACK: Symbol.for('WHITEONBLACK'),
|
|
LABELS45: Symbol.for('LABELS45'),
|
|
RADIO: Symbol.for('RADIO')
|
|
};
|
|
|
|
|
|
/**
|
|
* Skin.
|
|
*
|
|
* @name module:visual.Slider#Skin
|
|
* @enum {any}
|
|
* @readonly
|
|
* @public
|
|
*
|
|
* @note a null value indicates that the value is calculated when the style is setup, rather than simply assigned.
|
|
*/
|
|
Slider.Skin = {
|
|
MARKER_SIZE: null,
|
|
STANDARD: {
|
|
MARKER_COLOR: new Color('red'),
|
|
BAR_LINE_COLOR: null,
|
|
TICK_COLOR: null,
|
|
LABEL_COLOR: null
|
|
},
|
|
WHITE_ON_BLACK: {
|
|
MARKER_COLOR: new Color('white'),
|
|
BAR_LINE_COLOR: new Color('black'),
|
|
TICK_COLOR: new Color('black'),
|
|
LABEL_COLOR: new Color('black')
|
|
}
|
|
};
|
|
</code></pre>
|
|
</article>
|
|
</section>
|
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|
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</div>
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<nav>
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<h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-core.html">core</a></li><li><a href="module-data.html">data</a></li><li><a href="module-sound.html">sound</a></li><li><a href="module-util.html">util</a></li><li><a href="module-visual.html">visual</a></li></ul><h3>Classes</h3><ul><li><a href="module-core.BuilderKeyResponse.html">BuilderKeyResponse</a></li><li><a href="module-core.EventManager.html">EventManager</a></li><li><a href="module-core.GUI.html">GUI</a></li><li><a href="module-core.Keyboard.html">Keyboard</a></li><li><a href="module-core.KeyPress.html">KeyPress</a></li><li><a href="module-core.Logger.html">Logger</a></li><li><a href="module-core.MinimalStim.html">MinimalStim</a></li><li><a href="module-core.Mouse.html">Mouse</a></li><li><a href="module-core.PsychoJS.html">PsychoJS</a></li><li><a href="module-core.ServerManager.html">ServerManager</a></li><li><a href="module-core.Window.html">Window</a></li><li><a href="module-data.ExperimentHandler.html">ExperimentHandler</a></li><li><a href="module-data.TrialHandler.html">TrialHandler</a></li><li><a href="module-sound.Sound.html">Sound</a></li><li><a href="module-sound.TonePlayer.html">TonePlayer</a></li><li><a href="module-sound.TrackPlayer.html">TrackPlayer</a></li><li><a href="module-util.Clock.html">Clock</a></li><li><a href="module-util.Color.html">Color</a></li><li><a href="module-util.CountdownTimer.html">CountdownTimer</a></li><li><a href="module-util.EventEmitter.html">EventEmitter</a></li><li><a href="module-util.MixinBuilder.html">MixinBuilder</a></li><li><a href="module-util.MonotonicClock.html">MonotonicClock</a></li><li><a href="module-util.PsychObject.html">PsychObject</a></li><li><a href="module-util.Scheduler.html">Scheduler</a></li><li><a href="module-visual.Form.html">Form</a></li><li><a href="module-visual.ImageStim.html">ImageStim</a></li><li><a href="module-visual.MovieStim.html">MovieStim</a></li><li><a href="module-visual.Polygon.html">Polygon</a></li><li><a href="module-visual.Rect.html">Rect</a></li><li><a href="module-visual.ShapeStim.html">ShapeStim</a></li><li><a href="module-visual.Slider.html">Slider</a></li><li><a href="module-visual.TextBox.html">TextBox</a></li><li><a href="module-visual.TextStim.html">TextStim</a></li><li><a href="module-visual.VisualStim.html">VisualStim</a></li><li><a href="TextInput.html">TextInput</a></li></ul><h3>Interfaces</h3><ul><li><a href="module-sound.SoundPlayer.html">SoundPlayer</a></li></ul><h3>Mixins</h3><ul><li><a href="module-core.WindowMixin.html">WindowMixin</a></li><li><a href="module-util.ColorMixin.html">ColorMixin</a></li></ul>
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Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.6</a> on Sat Feb 20 2021 13:00:58 GMT+0100 (Central European Standard Time)
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