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Clement Remi authoredd0b21b6f
import { Pair } from "../util/pair"/** * mode de génération des valeurs */export enum ParamValueMode { /** * valeur unique */ SINGLE, /** * min, max, pas */ MINMAX, /** * liste de valeurs discrètes */ LISTE}/** * itérateur sur les (ou la) valeurs prises par le paramètre */export class ParamValueIterator implements IterableIterator<number> { /** * paramètre à itérer */ private _param: ParamValues; /** * true si les valeurs sont fournies de max à min (ParamValueMode.MINMAX) */ private _reverse: boolean; private _index: number; /** * cas de figure : * 0 : valeur fixée * 1 : min/max/pas * 2 : liste de valeurs */ private _config: number; constructor(prm: ParamValues, reverse: boolean = false) { this._param = prm; this.reset(reverse) } public reset(reverse: boolean) { this._reverse = reverse; switch (this._param.valueMode) { case ParamValueMode.SINGLE: this._config = 0; this._index = 0; break; case ParamValueMode.MINMAX: this._config = 1; if (reverse) this._index = this._param.max; else this._index = this._param.min; break; case ParamValueMode.LISTE: this._config = 2;7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
this._index = 0;
break;
default:
throw new Error(`mode de génération de valeurs ${ParamValueMode[this._param.valueMode]}`);
}
}
public next(): IteratorResult<number> {
switch (this._config) {
// valeur fixée
case 0:
if (this._index == 0)
return {
done: false,
value: this._param.singleValue
};
else
return {
done: true,
value: undefined
};
// min/max
case 1:
const res = this._index;
const end = this._reverse ? this._index < this._param.min : this._index > this._param.max;
if (!end) {
if (this._reverse)
this._index -= this._param.step;
else
this._index += this._param.step;
return {
done: false,
value: res
};
} else {
return {
done: true,
value: undefined
};
}
// liste
case 2:
const i = this._index;
if (this._index < this._param.valueList.length) {
const res = this._param.valueList[this._index++];
return {
done: false,
value: res
};
} else {
return {
done: true,
value: undefined
};
}
default:
throw new Error(`ParamValueIterator.next() : erreur interne`);
}
}
// public get current(): number {
// if (this._config == 1)
// return this._index;
// throw new Error(`appel ParamValueIterator.current() invalide`)
// }
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// interface IterableIterator
public [Symbol.iterator](): IterableIterator<number> {
return this;
}
}
export class ParamValues {
/**
* mode de génération des valeurs : min/max, liste, ...
*/
private _valueMode: ParamValueMode = ParamValueMode.MINMAX;
/**
* valeur dans le cas ParamValueMode.SINGLE
*/
private _singleValue: number;
/**
* valeur min dans le cas ParamValueMode.MINMAX
*/
private _minValue: number = undefined;
/**
* valeur max dans le cas ParamValueMode.MINMAX
*/
private _maxValue: number = undefined;
/**
* pas de progression dans le cas ParamValueMode.MINMAX
*/
private _stepValue: number = undefined;
/**
* liste de valeurs dans le cas ParamValueMode.LISTE
*/
private _valueList: number[];
public setValues(o: number | any, max?: number, step?: number) {
if (typeof (o) === "number") {
if (max == undefined) {
this._valueMode = ParamValueMode.SINGLE;
this._singleValue = o as number;
} else {
this._valueMode = ParamValueMode.MINMAX;
this._minValue = o as number;
this._maxValue = max;
this._stepValue = step;
}
}
else if (Array.isArray(o))
this._valueList = o;
else
throw new Error(`ParamValues.setValues() : appel invalide`);
}
public get valueMode() {
return this._valueMode;
}
public set valueMode(m: ParamValueMode) {
this._valueMode = m;
}
public get singleValue() {
return this._singleValue;
}
public set singleValue(v: number) {
this._singleValue = v;
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}
public get min() {
return this._minValue;
}
public set min(v: number) {
this._minValue = v;
}
public get max() {
return this._maxValue;
}
public set max(v: number) {
this._maxValue = v;
}
public get stepRefValue(): Pair {
return new Pair(1e-9, this._maxValue - this._minValue);
}
public get step() {
return this._stepValue;
}
public set step(v: number) {
this._stepValue = v;
}
public get valueList() {
return this._valueList;
}
public set valueList(l: number[]) {
this._valueList = l;
}
public getValuesIterator(reverse: boolean = false): ParamValueIterator {
return new ParamValueIterator(this, reverse);
}
/**
* copie des membres
*/
public copyMembers(n: ParamValues) {
n._valueMode = this.valueMode;
n._minValue = this._minValue;
n._maxValue = this._maxValue;
n._stepValue = this._stepValue;
if (this._valueList != undefined)
n._valueList = this._valueList.slice(0); // copie
}
}