@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.
102 lines • 17.1 kB
JavaScript
import { ChangeDetectionStrategy, Component, DestroyRef, ElementRef, inject, input, numberAttribute } from "@angular/core";
import { PointExtensions, SizeExtensions, TransformModelExtensions } from '@foblex/2d';
import { F_BACKGROUND_PATTERN } from '../domain';
import { createSVGElement } from '../../domain';
import { BrowserService } from '@foblex/platform';
import { FChannel, FChannelHub, notifyOnStart } from '../../reactivity';
import * as i0 from "@angular/core";
let uniqueId = 0;
export class FRectPatternComponent {
_destroyRef = inject(DestroyRef);
_elementReference = inject(ElementRef);
_fBrowser = inject(BrowserService);
_stateChanges = new FChannel();
get hostElement() {
return this._elementReference.nativeElement;
}
id = input(`f-pattern-${uniqueId++}`);
vColor = input('rgba(0,0,0,0.1)');
hColor = input('rgba(0,0,0,0.1)');
vSize = input(20, { transform: numberAttribute });
hSize = input(20, { transform: numberAttribute });
_transform = TransformModelExtensions.default();
_position = PointExtensions.initialize();
_size = SizeExtensions.initialize(this.hSize(), this.vSize());
_pattern;
_vLine;
_hLine;
constructor() {
this._createPattern();
}
_createPattern() {
this._pattern = createSVGElement('pattern', this._fBrowser);
this._pattern.setAttribute('patternUnits', 'userSpaceOnUse');
this.hostElement.appendChild(this._pattern);
this._vLine = createSVGElement('line', this._fBrowser);
this._pattern.appendChild(this._vLine);
this._hLine = createSVGElement('line', this._fBrowser);
this._pattern.appendChild(this._hLine);
}
ngOnInit() {
this._listenStateChanges();
}
_listenStateChanges() {
new FChannelHub(this._stateChanges).pipe(notifyOnStart()).listen(this._destroyRef, () => this._redraw());
}
ngOnChanges(changes) {
if (changes['vSize'] || changes['hSize'] || changes['vColor'] || changes['hColor']) {
this._refresh();
}
}
_redraw() {
this._calculatePattern();
this._redrawPattern();
this.redrawLine(this._vLine, this.vColor(), this._size.width, 0, this._size.width, this._size.height);
this.redrawLine(this._hLine, this.hColor(), 0, this._size.height, this._size.width, this._size.height);
}
_calculatePattern() {
this._position.x = this._transform.position.x + this._transform.scaledPosition.x;
this._position.y = this._transform.position.y + this._transform.scaledPosition.y;
this._size = SizeExtensions.initialize(this.hSize() * this._transform.scale, this.vSize() * this._transform.scale);
}
_redrawPattern() {
this._pattern.setAttribute('x', `${this._position.x}`);
this._pattern.setAttribute('y', `${this._position.y}`);
this._pattern.setAttribute('width', `${this._size.width}`);
this._pattern.setAttribute('height', `${this._size.height}`);
}
redrawLine(line, color, x1, y1, x2, y2) {
line.setAttribute('stroke', `${color}`);
line.setAttribute('x1', `${x1}`);
line.setAttribute('x2', `${x2}`);
line.setAttribute('y1', `${y1}`);
line.setAttribute('y2', `${y2}`);
}
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: FRectPatternComponent, deps: [], target: i0.ɵɵFactoryTarget.Component });
static ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "17.1.0", version: "18.2.13", type: FRectPatternComponent, isStandalone: true, selector: "f-rect-pattern", inputs: { id: { classPropertyName: "id", publicName: "id", isSignal: true, isRequired: false, transformFunction: null }, vColor: { classPropertyName: "vColor", publicName: "vColor", isSignal: true, isRequired: false, transformFunction: null }, hColor: { classPropertyName: "hColor", publicName: "hColor", isSignal: true, isRequired: false, transformFunction: null }, vSize: { classPropertyName: "vSize", publicName: "vSize", isSignal: true, isRequired: false, transformFunction: null }, hSize: { classPropertyName: "hSize", publicName: "hSize", isSignal: true, isRequired: false, transformFunction: null } }, host: { properties: { "attr.id": "id" } }, providers: [
{ provide: F_BACKGROUND_PATTERN, useExisting: FRectPatternComponent }
], usesOnChanges: true, ngImport: i0, template: ``, isInline: true, changeDetection: i0.ChangeDetectionStrategy.OnPush });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: FRectPatternComponent, decorators: [{
type: Component,
args: [{
selector: "f-rect-pattern",
template: ``,
standalone: true,
host: {
'[attr.id]': 'id'
},
providers: [
{ provide: F_BACKGROUND_PATTERN, useExisting: FRectPatternComponent }
],
changeDetection: ChangeDetectionStrategy.OnPush
}]
}], ctorParameters: () => [] });
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{\n  ChangeDetectionStrategy,\n  Component, DestroyRef,\n  ElementRef, inject, input, numberAttribute, OnChanges,\n  OnInit, SimpleChanges\n} from \"@angular/core\";\nimport {\n  ITransformModel,\n  PointExtensions, SizeExtensions, TransformModelExtensions\n} from '@foblex/2d';\nimport { F_BACKGROUND_PATTERN, IFBackgroundPattern } from '../domain';\nimport { createSVGElement } from '../../domain';\nimport { BrowserService } from '@foblex/platform';\nimport { FChannel, FChannelHub, notifyOnStart } from '../../reactivity';\n\nlet uniqueId: number = 0;\n\n@Component({\n  selector: \"f-rect-pattern\",\n  template: ``,\n  standalone: true,\n  host: {\n    '[attr.id]': 'id'\n  },\n  providers: [\n    { provide: F_BACKGROUND_PATTERN, useExisting: FRectPatternComponent }\n  ],\n  changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class FRectPatternComponent 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 vColor = input<string>('rgba(0,0,0,0.1)');\n  public hColor = input<string>('rgba(0,0,0,0.1)');\n  public vSize = input<number, unknown>(20, { transform: numberAttribute});\n  public hSize = input<number, unknown>(20, { transform: numberAttribute});\n\n  private _transform = TransformModelExtensions.default();\n\n  private _position = PointExtensions.initialize();\n\n  private _size = SizeExtensions.initialize(this.hSize(), this.vSize());\n\n  private _pattern!: SVGPatternElement;\n  private _vLine!: SVGLineElement;\n  private _hLine!: SVGLineElement;\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._vLine = createSVGElement('line', this._fBrowser);\n    this._pattern.appendChild(this._vLine);\n\n    this._hLine = createSVGElement('line', this._fBrowser);\n    this._pattern.appendChild(this._hLine);\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['vSize'] || changes['hSize'] || changes['vColor'] || changes['hColor']) {\n      this._refresh();\n    }\n  }\n\n  private _redraw(): void {\n    this._calculatePattern();\n    this._redrawPattern();\n\n    this.redrawLine(this._vLine, this.vColor(), this._size.width, 0, this._size.width, this._size.height);\n    this.redrawLine(this._hLine, this.hColor(), 0, this._size.height, this._size.width, this._size.height);\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._size = SizeExtensions.initialize(this.hSize() * this._transform.scale, this.vSize() * 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._size.width }`);\n    this._pattern.setAttribute('height', `${ this._size.height }`);\n  }\n\n  private redrawLine(line: SVGLineElement, color: string, x1: number, y1: number, x2: number, y2: number): void {\n    line.setAttribute('stroke', `${ color }`);\n    line.setAttribute('x1', `${ x1 }`);\n    line.setAttribute('x2', `${ x2 }`);\n    line.setAttribute('y1', `${ y1 }`);\n    line.setAttribute('y2', `${ y2 }`);\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"]}