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import SSVGProperty from './SSVGProperty';
import { defaultTo, isNil } from './utils';
import d from 'debug';
const debug = d('ssvg:prop');
/**
* @typedef {import('./SSVGState').default} SSVGState
*/
export default class SSVGPropertyNumber extends SSVGProperty {
/**
* @param {SSVGState} ssvg
* @param {Element} element
*/
constructor(ssvg, element) {
super(ssvg, element);
this.min = Number.parseFloat(element.getAttribute('min') || '0');
this.max = Number.parseFloat(element.getAttribute('max') || '1');
// @ts-ignore: of course we can parseFloat a number
this._value = Number.parseFloat(defaultTo(element.getAttribute('initial'), this.min));
Iif (Number.isNaN(this.min)) {
throw new SyntaxError('invalid min value for number property: ' +
(element.getAttribute('min') || ''));
}
else Iif (Number.isNaN(this.max)) {
throw new SyntaxError('invalid max value for number property: ' +
(element.getAttribute('max') || ''));
}
for (let i = 0; i < this.relations.length; ++i) {
this.relations[i].setInitial(this);
}
}
/**
* @param {number?=} [value]
* @return {number}
*/
normalize(value) {
Iif (this.min === this.max) {
return this.min;
}
else Iif (!isNil(value)) {
// @ts-ignore
return (Number.parseFloat(value) - this.min) / (this.max - this.min);
}
else if (isNil(this._normalized)) {
this._normalized = (this._value - this.min) / (this.max - this.min);
}
return this._normalized;
}
/** @param {number|any} value */
set value(value) {
this._normalized = null;
var num = Number.parseFloat(value);
Iif (Number.isNaN(num)) {
debug('invalid number %o for property %s', value, this.name);
num = this.min;
}
super.value = num;
}
/** @return {number|any} */
get value() {
return super.value;
}
}
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