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@foblex/flow

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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.

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import { __decorate } from "tslib"; import { inject, Injectable } from '@angular/core'; import { MinimapCalculateSvgScaleAndViewBoxRequest } from './minimap-calculate-svg-scale-and-view-box.request'; import { FExecutionRegister, FMediator } from '@foblex/mediator'; import { adjustRectToMinSize, RectExtensions, SizeExtensions } from '@foblex/2d'; import { FComponentsStore } from '../../../f-storage'; import { CalculateNodesBoundingBoxRequest } from '../../../domain'; import * as i0 from "@angular/core"; let MinimapCalculateSvgScaleAndViewBoxExecution = class MinimapCalculateSvgScaleAndViewBoxExecution { _fMediator = inject(FMediator); _fComponentStore = inject(FComponentsStore); get _fFlow() { return this._fComponentStore.fFlow; } get _fCanvas() { return this._fComponentStore.fCanvas; } handle(request) { if (!this._fFlow) { return { scale: 1, viewBox: RectExtensions.initialize(0, 0, 0, 0) }; } const nodesRect = this._getScaledNodesBoundingBox(request.minSize); const minimapRect = this._getMinimapRect(request.element); const scale = this._calculateViewScale(nodesRect, minimapRect); return { scale, viewBox: this._calculateViewBox(nodesRect, minimapRect, scale) }; } _getScaledNodesBoundingBox(minSize) { const globalRect = this._calculateNodesBoundingBox(); const flowRect = this._convertFromGlobalToFlowRect(globalRect); const scaledRect = this._convertRectToMinimapScale(flowRect); return adjustRectToMinSize(scaledRect, minSize); } _calculateNodesBoundingBox() { return this._fMediator.execute(new CalculateNodesBoundingBoxRequest()) || RectExtensions.initialize(0, 0, 0, 0); } _convertFromGlobalToFlowRect(rect) { return RectExtensions.elementTransform(rect, this._fFlow.hostElement); } _convertRectToMinimapScale(rect) { return RectExtensions.div(rect, this._fCanvas.transform.scale); } _getMinimapRect(element) { return RectExtensions.elementTransform(RectExtensions.fromElement(element), this._fFlow.hostElement); } _calculateViewScale(nodesRect, minimapRect) { return Math.max(nodesRect.width / minimapRect.width, nodesRect.height / minimapRect.height); } _calculateViewBox(nodesRect, minimapRect, scale) { return this._calculateCenteredViewBox(nodesRect, this._calculateViewSize(minimapRect, scale)); } _calculateViewSize(minimapRect, scale) { return SizeExtensions.initialize(minimapRect.width * scale || 0, minimapRect.height * scale || 0); } _calculateCenteredViewBox(nodesRect, viewSize) { const centeredX = nodesRect.x - (viewSize.width - nodesRect.width) / 2; const centeredY = nodesRect.y - (viewSize.height - nodesRect.height) / 2; return RectExtensions.initialize(centeredX, centeredY, viewSize.width, viewSize.height); } static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: MinimapCalculateSvgScaleAndViewBoxExecution, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: MinimapCalculateSvgScaleAndViewBoxExecution }); }; MinimapCalculateSvgScaleAndViewBoxExecution = __decorate([ FExecutionRegister(MinimapCalculateSvgScaleAndViewBoxRequest) ], MinimapCalculateSvgScaleAndViewBoxExecution); export { MinimapCalculateSvgScaleAndViewBoxExecution }; i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: MinimapCalculateSvgScaleAndViewBoxExecution, decorators: [{ type: Injectable }] }); //# 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{ inject, Injectable } from '@angular/core';\nimport { MinimapCalculateSvgScaleAndViewBoxRequest } from './minimap-calculate-svg-scale-and-view-box.request';\nimport { FExecutionRegister, FMediator, IExecution } from '@foblex/mediator';\nimport { adjustRectToMinSize, IRect, ISize, RectExtensions, SizeExtensions } from '@foblex/2d';\nimport { FComponentsStore } from '../../../f-storage';\nimport { FCanvasBase } from '../../../f-canvas';\nimport { FFlowBase } from '../../../f-flow';\nimport { CalculateNodesBoundingBoxRequest } from '../../../domain';\nimport { IFMinimapScaleAndViewBox } from './i-f-minimap-scale-and-view-box';\n\n@Injectable()\n@FExecutionRegister(MinimapCalculateSvgScaleAndViewBoxRequest)\nexport class MinimapCalculateSvgScaleAndViewBoxExecution\n  implements IExecution<MinimapCalculateSvgScaleAndViewBoxRequest, IFMinimapScaleAndViewBox> {\n\n  private _fMediator = inject(FMediator);\n\n  private _fComponentStore = inject(FComponentsStore);\n\n  private get _fFlow(): FFlowBase {\n    return this._fComponentStore.fFlow!;\n  }\n\n  private get _fCanvas(): FCanvasBase {\n    return this._fComponentStore.fCanvas!;\n  }\n\n  public handle(request: MinimapCalculateSvgScaleAndViewBoxRequest): IFMinimapScaleAndViewBox {\n    if(!this._fFlow) {\n      return { scale: 1, viewBox: RectExtensions.initialize(0, 0, 0, 0) };\n    }\n\n    const nodesRect = this._getScaledNodesBoundingBox(request.minSize);\n    const minimapRect = this._getMinimapRect(request.element);\n    const scale = this._calculateViewScale(nodesRect, minimapRect);\n\n    return {\n      scale,\n      viewBox: this._calculateViewBox(nodesRect, minimapRect, scale)\n    }\n  }\n\n  private _getScaledNodesBoundingBox(minSize: number): IRect {\n    const globalRect = this._calculateNodesBoundingBox();\n    const flowRect = this._convertFromGlobalToFlowRect(globalRect);\n    const scaledRect = this._convertRectToMinimapScale(flowRect);\n    return adjustRectToMinSize(scaledRect, minSize);\n  }\n\n  private _calculateNodesBoundingBox(): IRect {\n    return this._fMediator.execute<IRect | null>(new CalculateNodesBoundingBoxRequest())\n      || RectExtensions.initialize(0, 0, 0, 0);\n  }\n\n  private _convertFromGlobalToFlowRect(rect: IRect): IRect {\n    return RectExtensions.elementTransform(rect, this._fFlow!.hostElement)\n  }\n\n  private _convertRectToMinimapScale(rect: IRect): IRect {\n    return RectExtensions.div(rect, this._fCanvas.transform.scale);\n  }\n\n  private _getMinimapRect(element: SVGSVGElement): IRect {\n    return RectExtensions.elementTransform(RectExtensions.fromElement(element), this._fFlow.hostElement);\n  }\n\n  private _calculateViewScale(nodesRect: IRect, minimapRect: IRect): number {\n    return Math.max(nodesRect.width / minimapRect.width, nodesRect.height / minimapRect.height);\n  }\n\n  private _calculateViewBox(nodesRect: IRect, minimapRect: IRect, scale: number): IRect {\n    return this._calculateCenteredViewBox(nodesRect, this._calculateViewSize(minimapRect, scale));\n  }\n\n  private _calculateViewSize(minimapRect: IRect, scale: number): ISize {\n    return SizeExtensions.initialize(minimapRect.width * scale || 0, minimapRect.height * scale || 0);\n  }\n\n  private _calculateCenteredViewBox(nodesRect: IRect, viewSize: ISize): IRect {\n    const centeredX = nodesRect.x - (viewSize.width - nodesRect.width) / 2;\n    const centeredY = nodesRect.y - (viewSize.height - nodesRect.height) / 2;\n    return RectExtensions.initialize(centeredX, centeredY, viewSize.width, viewSize.height);\n  }\n}\n"]}