FiDA_Front/src/components/Canvas/DepthCanvas/manager/CanvasManager.ts

import { fabric } from 'fabric-with-all'
import { ref } from 'vue'
import { createCanvas } from '../tools/canvasFactory'
import { AnimationManager } from './AnimationManager'
import { detectDeviceType } from '../tools/index'
import { CanvasEventManager } from "./events/CanvasEventManager";
import { OperationType } from '../tools/layerHelper'

interface CanvasInitOptions {
	canvasRef: any
	canvasViewWidth?: number
	canvasViewHeight?: number
	canvasWidth?: number
	canvasHeight?: number
}
export class CanvasManager {
	stateManager: any
	layerManager: any
	animationManager: any
	eventManager: any
	deviceInfo: any
	canvas: any
	canvasViewWidth: number
	canvasViewHeight: number
	canvasWidth: number
	canvasHeight: number
	currentZoom: any
	constructor(options) {
		this.stateManager = options.stateManager;
		this.deviceInfo = detectDeviceType();
		this.currentZoom = ref(100)
	}
	setCanvasViewSize(options) {
		this.canvasViewWidth = options.canvasViewWidth || 1920
		this.canvasViewHeight = options.canvasViewHeight || 1080
	}
	initCanvas(options: CanvasInitOptions) {
		this.layerManager = this.stateManager.layerManager
		this.setCanvasViewSize(options)
		this.canvasWidth = options.canvasWidth || 750
		this.canvasHeight = options.canvasHeight || 600
		this.canvas = createCanvas(options.canvasRef.value, {
			width: this.canvasViewWidth,
			height: this.canvasViewHeight,
			preserveObjectStacking: true,
			enableRetinaScaling: true,
			stopContextMenu: true,
			fireRightClick: true,
			backgroundColor: '#fff',
		})
		this.canvas.clipPath = new fabric.Rect({
			left: 0,
			top: 0,
			width: this.canvasWidth,
			height: this.canvasHeight
		})
		// 画布居中
		const canvasX = this.canvasViewWidth / 2 - this.canvasWidth / 2
		const canvasY = this.canvasViewHeight / 2 - this.canvasHeight / 2
		this.canvas.viewportTransform = [1, 0, 0, 1, canvasX, canvasY]
		// 创建矩形
		const rect = new fabric.Rect({
			left: 20,
			top: 20,
			width: 100,
			height: 100,
			fill: '#f00',
			info: {
				id: 'rect1',
				name: 'rect1',
			}
		})
		this.canvas.add(rect)
		//创建圆形
		const circle = new fabric.Circle({
			left: 200,
			top: 200,
			radius: 50,
			fill: '#0f0',
			info: {
				id: 'circle',
				name: 'circle',
			}
		})
		this.canvas.add(circle)
		// 文字
		const text = new fabric.Text('Hello World', {
			left: 300,
			top: 300,
			fontSize: 24,
			fill: '#000',
			info: {
				id: 'text1',
				name: 'text',
			}
		})
		this.canvas.add(text)
		// 文字
		const text2 = new fabric.Text('Hello World', {
			left: 300,
			top: 300,
			fontSize: 24,
			fill: '#000',
			info: {
				id: 'text2',
				name: 'tex2t',
			}
		})
		this.canvas.add(text2)
		this.animationManager = new AnimationManager(this.canvas, {
			currentZoom: this.currentZoom,
			canvasManager: this,
			wheelThrottleTime: 15, // 降低滚轮事件节流时间，提高响应性
			defaultEase: "power2.lin",
			defaultDuration: 0.3, // 缩短默认动画时间
		});
		this.setupCanvasEvents()
		this.stateManager.toolManager.setTool(OperationType.SELECT)
		this.layerManager.updateLayers()
		this.layerManager.setActiveID(text2.info.id)
	}
	setupCanvasEvents() {
		// 创建画布事件管理器
		this.eventManager = new CanvasEventManager(this.canvas, {
			canvasManager: this,
			animationManager: this.animationManager,
			toolManager: this.stateManager.toolManager,
		});
		// 设置动画交互效果
		this.animationManager.setupInteractionAnimations();
	}
	resetZoom() {
		this.animationManager.resetZoom()
	}
	getObjects() {
		return this.canvas.getObjects() || []
	}
	getObjectById(id: string) {
		return this.getObjects().find((item: any) => item.info.id === id)
	}
	renderAll() {
		this.canvas.renderAll()
	}

	deleteObjectById(id: string) {
		const object = this.getObjectById(id)
		if (object) {
			this.canvas.remove(object)
			this.layerManager.updateLayers()
			this.renderAll()
		}
	}
	// 拖拽排序
	dragSort(id, newIndex) {
		this.canvas.moveTo(this.getObjectById(id), newIndex)
		this.layerManager.updateLayers()
		this.renderAll()
	}
	getBitObjects() {
		return this.getObjects().map(v => {
			const object = v.toJSON("info");
			return object
		})
	}


}