@foblex/flow
Version:
An Angular library designed to simplify the creation and manipulation of dynamic flow. Provides components for flows, nodes, and connections, automating node manipulation and inter-node connections.
95 lines • 14.5 kB
JavaScript
import { ChangeDetectionStrategy, Component, DestroyRef, ElementRef, inject, input, numberAttribute } from "@angular/core";
import { PointExtensions, TransformModelExtensions } from '@foblex/2d';
import { F_BACKGROUND_PATTERN } from '../domain';
import { BrowserService } from '@foblex/platform';
import { createSVGElement } from '../../domain';
import { FChannel, FChannelHub, notifyOnStart } from '../../reactivity';
import * as i0 from "@angular/core";
let uniqueId = 0;
export class FCirclePatternComponent {
_destroyRef = inject(DestroyRef);
_elementReference = inject(ElementRef);
_fBrowser = inject(BrowserService);
_stateChanges = new FChannel();
get hostElement() {
return this._elementReference.nativeElement;
}
id = input(`f-pattern-${uniqueId++}`);
color = input('rgba(0,0,0,0.1)');
radius = input(20, { transform: numberAttribute });
_scaledRadius = 20;
_transform = TransformModelExtensions.default();
_position = PointExtensions.initialize();
_pattern;
_circle;
constructor() {
this._createPattern();
}
_createPattern() {
this._pattern = createSVGElement('pattern', this._fBrowser);
this._pattern.setAttribute('patternUnits', 'userSpaceOnUse');
this.hostElement.appendChild(this._pattern);
this._circle = createSVGElement('circle', this._fBrowser);
this._pattern.appendChild(this._circle);
}
ngOnInit() {
this._listenStateChanges();
}
_listenStateChanges() {
new FChannelHub(this._stateChanges).pipe(notifyOnStart()).listen(this._destroyRef, () => this._redraw());
}
ngOnChanges(changes) {
if (changes['radius'] || changes['color']) {
this._refresh();
}
}
_redraw() {
this._calculatePattern();
this._redrawPattern();
this._redrawElement();
}
_calculatePattern() {
this._position.x = this._transform.position.x + this._transform.scaledPosition.x;
this._position.y = this._transform.position.y + this._transform.scaledPosition.y;
this._scaledRadius = this.radius() * this._transform.scale;
}
_redrawPattern() {
this._pattern.setAttribute('x', `${this._position.x}`);
this._pattern.setAttribute('y', `${this._position.y}`);
this._pattern.setAttribute('width', `${this._scaledRadius}`);
this._pattern.setAttribute('height', `${this._scaledRadius}`);
}
_redrawElement() {
this._circle.setAttribute('fill', this.color());
this._circle.setAttribute('cx', `${this._scaledRadius / 2}`);
this._circle.setAttribute('cy', `${this._scaledRadius / 2}`);
this._circle.setAttribute('r', `${this._scaledRadius / this.radius()}`);
}
setTransform(transform) {
this._transform = transform;
this._refresh();
}
_refresh() {
this._stateChanges.notify();
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: FCirclePatternComponent, deps: [], target: i0.ɵɵFactoryTarget.Component });
static ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "17.1.0", version: "18.2.13", type: FCirclePatternComponent, isStandalone: true, selector: "f-circle-pattern", inputs: { id: { classPropertyName: "id", publicName: "id", isSignal: true, isRequired: false, transformFunction: null }, color: { classPropertyName: "color", publicName: "color", isSignal: true, isRequired: false, transformFunction: null }, radius: { classPropertyName: "radius", publicName: "radius", isSignal: true, isRequired: false, transformFunction: null } }, host: { properties: { "attr.id": "id" } }, providers: [
{ provide: F_BACKGROUND_PATTERN, useExisting: FCirclePatternComponent }
], usesOnChanges: true, ngImport: i0, template: ``, isInline: true, changeDetection: i0.ChangeDetectionStrategy.OnPush });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: FCirclePatternComponent, decorators: [{
type: Component,
args: [{
selector: "f-circle-pattern",
template: ``,
standalone: true,
host: {
'[attr.id]': 'id'
},
providers: [
{ provide: F_BACKGROUND_PATTERN, useExisting: FCirclePatternComponent }
],
changeDetection: ChangeDetectionStrategy.OnPush
}]
}], ctorParameters: () => [] });
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{\n  ChangeDetectionStrategy,\n  Component, DestroyRef,\n  ElementRef, inject, input, Input, numberAttribute, OnChanges, OnDestroy,\n  OnInit, SimpleChanges\n} from \"@angular/core\";\nimport {\n  IPoint,\n  ITransformModel,\n  PointExtensions,\n  TransformModelExtensions\n} from '@foblex/2d';\nimport { F_BACKGROUND_PATTERN, IFBackgroundPattern } from '../domain';\nimport { BrowserService } from '@foblex/platform';\nimport { createSVGElement } from '../../domain';\nimport { FChannel, FChannelHub, notifyOnStart } from '../../reactivity';\n\nlet uniqueId: number = 0;\n\n@Component({\n  selector: \"f-circle-pattern\",\n  template: ``,\n  standalone: true,\n  host: {\n    '[attr.id]': 'id'\n  },\n  providers: [\n    { provide: F_BACKGROUND_PATTERN, useExisting: FCirclePatternComponent }\n  ],\n  changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class FCirclePatternComponent implements OnInit, OnChanges, IFBackgroundPattern {\n\n  private readonly _destroyRef = inject(DestroyRef);\n  private readonly _elementReference = inject(ElementRef);\n  private readonly _fBrowser = inject(BrowserService);\n\n  private readonly _stateChanges = new FChannel();\n\n  public get hostElement(): HTMLElement {\n    return this._elementReference.nativeElement;\n  }\n\n  public id = input<string>(`f-pattern-${ uniqueId++ }`);\n  public color = input<string>('rgba(0,0,0,0.1)');\n  public radius = input<number, unknown>(20, { transform: numberAttribute});\n\n  private _scaledRadius: number = 20;\n\n  private _transform: ITransformModel = TransformModelExtensions.default();\n\n  private _position: IPoint = PointExtensions.initialize();\n\n  private _pattern!: SVGPatternElement;\n  private _circle!: SVGCircleElement;\n\n  constructor(\n  ) {\n    this._createPattern();\n  }\n\n  private _createPattern(): void {\n    this._pattern = createSVGElement('pattern', this._fBrowser);\n    this._pattern.setAttribute('patternUnits', 'userSpaceOnUse');\n    this.hostElement.appendChild(this._pattern);\n\n    this._circle = createSVGElement('circle', this._fBrowser);\n    this._pattern.appendChild(this._circle);\n  }\n\n  public ngOnInit(): void {\n    this._listenStateChanges();\n  }\n\n  private _listenStateChanges(): void {\n    new FChannelHub(this._stateChanges).pipe(notifyOnStart()).listen(this._destroyRef, () => this._redraw());\n  }\n\n  public ngOnChanges(changes: SimpleChanges) {\n    if (changes['radius'] || changes['color']) {\n      this._refresh();\n    }\n  }\n\n  private _redraw(): void {\n    this._calculatePattern();\n    this._redrawPattern();\n    this._redrawElement();\n  }\n\n  private _calculatePattern(): void {\n    this._position.x = this._transform.position.x + this._transform.scaledPosition.x;\n    this._position.y = this._transform.position.y + this._transform.scaledPosition.y;\n    this._scaledRadius = this.radius() * this._transform.scale;\n  }\n\n  private _redrawPattern(): void {\n    this._pattern.setAttribute('x', `${ this._position.x }`);\n    this._pattern.setAttribute('y', `${ this._position.y }`);\n    this._pattern.setAttribute('width', `${ this._scaledRadius }`);\n    this._pattern.setAttribute('height', `${ this._scaledRadius }`);\n  }\n\n  private _redrawElement(): void {\n    this._circle.setAttribute('fill', this.color());\n    this._circle.setAttribute('cx', `${ this._scaledRadius / 2 }`);\n    this._circle.setAttribute('cy', `${ this._scaledRadius / 2 }`);\n    this._circle.setAttribute('r', `${ this._scaledRadius / this.radius() }`);\n  }\n\n  public setTransform(transform: ITransformModel): void {\n    this._transform = transform;\n    this._refresh();\n  }\n\n  private _refresh(): void {\n    this._stateChanges.notify();\n  }\n}\n"]}