import { Attributes } from './attributes.mjs' import { Point } from './point.mjs' import * as utils from './utils.mjs' export function Stack(name = null) { // Non-enumerable properties utils.addNonEnumProp(this, 'freeId', 0) utils.addNonEnumProp(this, 'layout', { move: { x: 0, y: 0 } }) // Enumerable properties this.attributes = new Attributes() this.parts = new Set() this.name = name this.topLeft = false this.bottomRight = false this.width = false this.height = false return this } /* Adds a part to the stack */ Stack.prototype.addPart = function (part) { if (part) this.parts.add(part) return this } /* Returns a list of parts in this stack */ Stack.prototype.getPartList = function (part) { return [...this.parts] } /* Returns a list of names of parts in this stack */ Stack.prototype.getPartNames = function (part) { return [...this.parts].map((p) => p.name) } /** Homes the stack so that its top left corner is in (0,0) */ //Stack.prototype.home = function () { // const parts = this.getPartList() // if (parts.length < 1) return this // for (const part of this.getPartList()) { // part.home() // } // // if (parts.length === 1) { // this.topLeft = part.topLeft // this.bottomRigth = part.bottomRight // this.width = part.width // this.height = part.height // // return this // } // // return this.boundary() //} /** Calculates the stack's bounding box and sets it */ Stack.prototype.home = function () { if (this.topLeft) return this // Cached this.topLeft = new Point(Infinity, Infinity) this.bottomRight = new Point(-Infinity, -Infinity) for (const part of this.getPartList()) { part.boundary() if (part.topLeft.x < this.topLeft.x) this.topLeft.x = part.topLeft.x if (part.topLeft.y < this.topLeft.y) this.topLeft.y = part.topLeft.y if (part.bottomRight.x > this.bottomRight.x) this.bottomRight.x = part.bottomRight.x if (part.bottomRight.y > this.bottomRight.y) this.bottomRight.y = part.bottomRight.y } // Fix infinity if it's not overwritten if (this.topLeft.x === Infinity) this.topLeft.x = 0 if (this.topLeft.y === Infinity) this.topLeft.y = 0 if (this.bottomRight.x === -Infinity) this.bottomRight.x = 0 if (this.bottomRight.y === -Infinity) this.bottomRight.y = 0 // Add margin let margin = this.context.settings.margin if (this.context.settings.paperless && margin < 10) margin = 10 this.topLeft.x -= margin this.topLeft.y -= margin this.bottomRight.x += margin this.bottomRight.y += margin // Set dimensions this.width = this.bottomRight.x - this.topLeft.x this.height = this.bottomRight.y - this.topLeft.y this.width = this.bottomRight.x - this.topLeft.x this.height = this.bottomRight.y - this.topLeft.y // Add transform this.anchor = this.getAnchor() if (this.topLeft.x === this.anchor.x && this.topLeft.y === this.anchor.y) return this else { this.attr('transform', `translate(${this.anchor.x - this.topLeft.x}, ${this.anchor.y - this.topLeft.y})`) this.layout.move.x = this.anchor.x - this.topLeft.x this.layout.move.y = this.anchor.y - this.topLeft.y } return this } /** Finds the anchor to align parts in this stack */ Stack.prototype.getAnchor = function() { let anchorPoint = true let gridAnchorPoint = true const parts = this.getPartList() for (const part of parts) { if (typeof part.points.anchor === 'undefined') anchorPoint = false if (typeof part.points.gridAnchor === 'undefined') gridAnchorPoint = false } if (anchorPoint) return parts[0].points.anchor if (gridAnchorPoint) return parts[0].points.gridAnchor return new Point(0,0) } /** Adds an attribute. This is here to make this call chainable in assignment */ Stack.prototype.attr = function (name, value, overwrite = false) { if (overwrite) this.attributes.set(name, value) else this.attributes.add(name, value) return this } /** Generates the transform for a stack */ Stack.prototype.generateTransform = function (transforms) { const { move, rotate, flipX, flipY } = transforms const generated = utils.generateStackTransform(move.x, move.y, rotate, flipX, flipY, this) for (var t in generated) { this.attr(t, generated[t], true) } } export default Stack