672 lines
18 KiB
JavaScript
672 lines
18 KiB
JavaScript
import { generateId } from "./helper";
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/**
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* 图层类型枚举
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*/
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export const LayerType = {
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EMPTY: "empty", // 空图层
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BITMAP: "bitmap", // 位图图层
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VECTOR: "vector", // 矢量图层
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TEXT: "text", // 文字图层
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GROUP: "group", // 组图层
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ADJUSTMENT: "adjustment", // 调整图层
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SMART_OBJECT: "smartObject", // 智能对象
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SHAPE: "shape", // 形状图层
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VIDEO: "video", // 视频图层 (预留)
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AUDIO: "audio", // 音频图层 (预留)
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FIXED: "fixed", // 固定图层 - 位于背景图层之上，普通图层之下
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BACKGROUND: "background", // 背景图层 - 位于固定图层之、普通图层之下
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};
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/**
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* 特殊图层ID
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*/
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export const SpecialLayerId = {
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SPECIAL_GROUP: "group_special", // 特殊组
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COLOR: "special_color", // 颜色图层
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}
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/**
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* 特殊类型
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*/
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export const SpecialType = {
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PRINT_TRIMS_G: "print_trims_group", // 印花和元素图层组
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PRINT_TRIMS_L: "print_trims_layer", // 印花和元素图层
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PRINT_TRIMS_O: "print_trims_object", // 印花和元素图层对象
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REPEAT_L: "repeat_layer",// 平铺图层
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REPEAT_O: "repeat_object",// 平铺图层对象
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}
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/**
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* 画布操作模式枚举：draw(绘画)、select(选择)、pan(拖拽)....
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*/
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export const OperationType = {
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// 编辑器模式
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DRAW: "draw", // 绘画模式
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ERASER: "eraser", // 橡皮擦模式
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SELECT: "select", // 选择模式
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PAN: "pan", // 拖拽模式
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EYEDROPPER: "eyedropper", // 吸色器模式
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// 套索工具
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LASSO: "lasso", // 套索工具模式 - 自由套索模式
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LASSO_RECTANGLE: "lasso_rectangle", // 套索工具模式 - 矩形模式
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LASSO_ELLIPSE: "lasso_ellipse", // 套索工具模式 - 椭圆
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// 创建临时选区工具模式 - 类似于临时图层 在这个区域的操作不会影响其他图层
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AREA_RECTANGLE: "area_rectangle", // 矩形选区模式
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// 材质笔刷工具模式
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TEXTURE: "texture", // 选择材质笔刷工具模式 - // 选择材质笔刷后会切换到绘画模式 笔刷固定到材质笔刷
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// 液化工具
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LIQUIFY: "liquify", // 液化工具模式
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// 矢量工具
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// VECTOR: "vector", // 矢量工具模式
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// 矢量工具模式 - 自由绘制
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// VECTOR_FREE: "vector_free",
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TEXT: "text", // 文字工具模式
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// 红绿图模式
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RED_GREEN: "red_green", // 红绿图模式 - 只有红色和绿色笔刷还有橡皮擦 不支持添加其他图片 特殊模式
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RED_BRUSH: "red_brush", // 红色笔刷
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GREEN_BRUSH: "green_brush", // 绿色笔刷
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// SHAPE: "shape", // 形状模式
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// 可以根据需要添加更多工具
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};
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// 所有操作模式类型列表
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export const OperationTypes = Object.values(OperationType);
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/**
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* 混合模式枚举
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* 与 fabricjs 和 CSS3 的 globalCompositeOperation 对应
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*/
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export const BlendMode = {
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NORMAL: "source-over", // 正常模式
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MULTIPLY: "multiply", // 正片叠底
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SCREEN: "screen", // 滤色
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OVERLAY: "overlay", // 叠加
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DARKEN: "darken", // 变暗
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LIGHTEN: "lighten", // 变亮
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COLOR_DODGE: "color-dodge", // 颜色减淡
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COLOR_BURN: "color-burn", // 颜色加深
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HARD_LIGHT: "hard-light", // 强光
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SOFT_LIGHT: "soft-light", // 柔光
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DIFFERENCE: "difference", // 差值
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EXCLUSION: "exclusion", // 排除
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HUE: "hue", // 色相
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SATURATION: "saturation", // 饱和度
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COLOR: "color", // 颜色
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LUMINOSITY: "luminosity", // 明度
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DESTINATION_IN: "destination-in", // 目标内
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DESTINATION_OUT: "destination-out", // 目标外
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};
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/**
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* 判断图层是否为组图层
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* @param {Object} layer 要检查的图层
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* @returns {boolean} 是否为组图层
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*/
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export function isGroupLayer(layer) {
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if (!layer) return false;
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return (
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layer.type === LayerType.GROUP ||
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(Array.isArray(layer.children) && layer.children.length > 0)
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);
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}
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/**
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* 从fabric对象创建图层
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* @param {Object} fabricObject fabric对象
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* @param {String} layerType 图层类型
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* @param {Object} options 其他选项
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* @returns {Object} 创建的图层对象
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*/
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export function createLayerFromFabricObject(
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fabricObject,
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layerType = "bitmap",
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options = {}
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) {
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if (!fabricObject) return null;
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// 确定图层类型
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let type = layerType;
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if (fabricObject.type === "textbox" || fabricObject.type === "text") {
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type = LayerType.TEXT;
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} else if (
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fabricObject.type === "rect" ||
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fabricObject.type === "circle" ||
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fabricObject.type === "polygon" ||
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fabricObject.type === "polyline"
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) {
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type = LayerType.SHAPE;
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} else if (fabricObject.type === "path" || fabricObject.type === "line") {
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type = LayerType.VECTOR;
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} else if (fabricObject.type === "image") {
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type = LayerType.BITMAP;
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}
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// 创建基础图层
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let layer = createLayer({
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...options,
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type: type,
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name:
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options.name ||
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`${
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fabricObject.type.charAt(0).toUpperCase() + fabricObject.type.slice(1)
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} 图层`,
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parentId: options.parentId || null,
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});
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// 添加对象到图层
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if (Array.isArray(layer.fabricObjects)) {
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layer.fabricObjects.push(fabricObject);
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} else {
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layer.fabricObjects = [fabricObject];
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}
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// 如果对象有自己的ID，将其与图层关联
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if (fabricObject.id) {
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fabricObject.layerId = layer.id;
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fabricObject.layerName = layer.name;
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}
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return layer;
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}
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/**
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* 创建标准图层对象
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* @param {Object} options 图层选项
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* @returns {Object} 图层对象
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*/
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export function createLayer(options = {}) {
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const id =
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options.id ||
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generateId("layer_") ||
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`layer_${Date.now()}_${Math.floor(Math.random() * 1000)}`;
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return {
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...options,
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id: id,
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// 图层基本属性
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name: options.name || `图层 ${id.substring(id.lastIndexOf("_") + 1)}`,
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type: options.type || LayerType.EMPTY,
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visible: options.visible !== undefined ? options.visible : true,
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locked: options.locked !== undefined ? options.locked : false,
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opacity: options.opacity !== undefined ? options.opacity : 1.0,
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blendMode: options.blendMode || BlendMode.NORMAL,
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isHidenDragHandle: options.isHidenDragHandle || false,
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isDisableUnlock: options.isDisableUnlock || false,
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isFixedOther: options.isFixedOther || false,
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isFixedClipMask: options.isFixedClipMask || false,
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// 确保不是背景图层
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isBackground: false,
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// Fabric.js 对象列表
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fabricObjects: options.fabricObjects || [],
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fabricObject: options.fabricObject || null,
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// 嵌套结构 - 适用于组图层
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children: options.children || [],
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// 剪切蒙版
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clippingMask: options.clippingMask || null,
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// 位置和大小信息（可选）
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bounds: options.bounds || null,
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// 图层特定属性
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layerProperties: options.layerProperties || {},
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// 元数据 - 可用于存储任意数据
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metadata: options.metadata || {},
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};
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}
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/**
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* 创建背景图层
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* @param {Object} options 背景图层选项
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* @returns {Object} 背景图层对象
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*/
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export function createBackgroundLayer(options = {}) {
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const id =
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options.id || `bg_layer_${Date.now()}_${Math.floor(Math.random() * 1000)}`;
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return {
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id: id,
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// 图层基本属性
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name: options.name || "背景",
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type: LayerType.BITMAP,
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visible: true,
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locked: true, // 背景图层默认锁定
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opacity: 1.0, // 背景图层始终不透明
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blendMode: BlendMode.NORMAL, // 背景图层始终使用正常混合模式
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// 标记为背景图层
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isBackground: true,
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// 画布尺寸
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canvasWidth: options.canvasWidth || 800,
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canvasHeight: options.canvasHeight || 600,
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backgroundColor: options.backgroundColor || "#ffffff",
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// Fabric.js 背景对象 (单个矩形对象)
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fabricObject: null, // 创建后设置
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// Fabric.js 对象列表
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fabricObjects: [], // 创建后设置
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// 无子图层
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children: [],
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// 元数据 - 可用于存储任意数据
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metadata: options.metadata || {},
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};
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}
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/**
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* 创建位图图层
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* @param {Object} options 图层选项
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* @returns {Object} 位图图层对象
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*/
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export function createBitmapLayer(options = {}) {
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const baseLayer = createLayer({
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...options,
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type: LayerType.BITMAP,
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});
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// 添加位图特定属性
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baseLayer.layerProperties = {
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...baseLayer.layerProperties,
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filters: options.filters || [], // 滤镜数组
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imageUrl: options.imageUrl || null, // 图片URL
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imageElement: options.imageElement || null, // 图片元素
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};
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return baseLayer;
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}
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/**
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* 创建文本图层
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* @param {Object} options 图层选项
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* @returns {Object} 文本图层对象
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*/
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export function createTextLayer(options = {}) {
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const baseLayer = createLayer({
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...options,
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type: LayerType.TEXT,
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});
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// 添加文字特定属性
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baseLayer.layerProperties = {
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...baseLayer.layerProperties,
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text: options.text || "新文本",
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fontFamily: options.fontFamily || "Arial",
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fontSize: options.fontSize || 24,
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fontWeight: options.fontWeight || "normal",
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fontStyle: options.fontStyle || "normal",
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textAlign: options.textAlign || "left",
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underline: options.underline || false,
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overline: options.overline || false,
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linethrough: options.linethrough || false,
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textBackgroundColor: options.textBackgroundColor || "transparent",
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lineHeight: options.lineHeight || 1.16,
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charSpacing: options.charSpacing || 0,
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};
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return baseLayer;
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}
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/**
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* 创建矢量图层
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* @param {Object} options 图层选项
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* @returns {Object} 矢量图层对象
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*/
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export function createVectorLayer(options = {}) {
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const baseLayer = createLayer({
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...options,
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type: LayerType.VECTOR,
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});
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// 添加矢量特定属性
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baseLayer.layerProperties = {
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...baseLayer.layerProperties,
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vectorType: options.vectorType || "path", // path, polygon, polyline等
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strokeWidth: options.strokeWidth !== undefined ? options.strokeWidth : 1,
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strokeColor: options.strokeColor || "#000000",
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fillColor: options.fillColor || "transparent",
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fillRule: options.fillRule || "nonzero",
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strokeLineCap: options.strokeLineCap || "butt",
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strokeLineJoin: options.strokeLineJoin || "miter",
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strokeDashArray: options.strokeDashArray || null,
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strokeDashOffset: options.strokeDashOffset || 0,
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};
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return baseLayer;
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}
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/**
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* 创建形状图层
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* @param {Object} options 图层选项
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* @returns {Object} 形状图层对象
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*/
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export function createShapeLayer(options = {}) {
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const baseLayer = createLayer({
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...options,
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type: LayerType.SHAPE,
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});
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// 添加形状特定属性
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baseLayer.layerProperties = {
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...baseLayer.layerProperties,
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shapeType: options.shapeType || "rect", // rect, circle, ellipse等
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strokeWidth: options.strokeWidth !== undefined ? options.strokeWidth : 1,
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strokeColor: options.strokeColor || "#000000",
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fillColor: options.fillColor || "#ffffff",
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rx: options.rx || 0, // 矩形圆角
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ry: options.ry || 0, // 矩形圆角
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};
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return baseLayer;
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}
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/**
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* 创建调整图层
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* @param {Object} options 图层选项
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* @returns {Object} 调整图层对象
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*/
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export function createAdjustmentLayer(options = {}) {
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const baseLayer = createLayer({
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...options,
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type: LayerType.ADJUSTMENT,
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});
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// 添加调整图层特定属性
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baseLayer.layerProperties = {
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...baseLayer.layerProperties,
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adjustmentType: options.adjustmentType || "brightness", // brightness, contrast, hue, saturation等
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value: options.value !== undefined ? options.value : 0,
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affectedLayerIds: options.affectedLayerIds || [], // 受影响的图层ID列表
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};
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return baseLayer;
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}
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/**
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* 创建智能对象图层
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* @param {Object} options 图层选项
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* @returns {Object} 智能对象图层
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*/
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export function createSmartObjectLayer(options = {}) {
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const baseLayer = createLayer({
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...options,
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type: LayerType.SMART_OBJECT,
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});
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// 添加智能对象特定属性
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baseLayer.layerProperties = {
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...baseLayer.layerProperties,
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sourceType: options.sourceType || "image", // image, vector, embedded等
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sourceUrl: options.sourceUrl || null,
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sourceData: options.sourceData || null,
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originalWidth: options.originalWidth || 0,
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originalHeight: options.originalHeight || 0,
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embedded: options.embedded !== undefined ? options.embedded : true,
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};
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return baseLayer;
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}
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/**
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* 创建固定图层 - 位于背景图层之上，普通图层之下
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* @param {Object} options 固定图层选项
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* @returns {Object} 固定图层对象
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*/
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export function createFixedLayer(options = {}) {
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const id =
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options.id ||
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`fixed_layer_${Date.now()}_${Math.floor(Math.random() * 1000)}`;
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return {
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id: id,
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// 图层基本属性
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name: options.name || "固定图层",
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type: LayerType.FIXED,
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visible: true, // 固定图层始终可见
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locked: true, // 固定图层默认锁定
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opacity: options.opacity !== undefined ? options.opacity : 1.0,
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blendMode: options.blendMode || BlendMode.NORMAL,
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// 标记为固定图层
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isFixed: true,
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isBackground: false,
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// Fabric.js 对象列表
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fabricObjects: options.fabricObjects || [],
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// 无子图层
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children: [],
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// 元数据 - 可用于存储任意数据
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metadata: options.metadata || {},
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};
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}
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/**
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* 深拷贝图层对象
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* @param {Object} layer 要拷贝的图层
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* @returns {Object} 拷贝后的图层
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*/
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export function cloneLayer(layer) {
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if (!layer) return null;
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// 基本属性深拷贝
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const clonedLayer = {
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...JSON.parse(JSON.stringify(layer)), // 深拷贝基本属性
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fabricObjects: [], // 重置，后面处理
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};
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// 复制 fabric 对象 (如果存在)
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if (Array.isArray(layer.fabricObjects)) {
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clonedLayer.fabricObjects = layer.fabricObjects.map((obj) => {
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return obj && typeof obj.clone === "function"
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? obj.clone()
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: JSON.parse(JSON.stringify(obj));
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});
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}
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// 复制背景对象 (如果存在)
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if (layer.isBackground && layer.fabricObject) {
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clonedLayer.fabricObject =
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typeof layer.fabricObject.clone === "function"
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? layer.fabricObject.clone()
|
||
: JSON.parse(JSON.stringify(layer.fabricObject));
|
||
}
|
||
|
||
// 递归复制子图层
|
||
if (Array.isArray(layer.children) && layer.children.length > 0) {
|
||
clonedLayer.children = layer.children.map((child) => cloneLayer(child));
|
||
}
|
||
|
||
return clonedLayer;
|
||
}
|
||
|
||
/**
|
||
* 递归查找图层（包括子图层）
|
||
* @param {Array} layers 图层数组
|
||
* @param {string} layerId 要查找的图层ID
|
||
* @param {Object} parent 父图层（可选，用于内部递归）
|
||
* @returns {Object|null} 包含layer和parent的对象，如果未找到返回null
|
||
*/
|
||
export function findLayerRecursively(layers, layerId, parent = null) {
|
||
try {
|
||
if (!layers || !Array.isArray(layers) || !layerId) {
|
||
return {
|
||
layer: null,
|
||
parent: null,
|
||
};
|
||
}
|
||
|
||
// 在当前图层列表中查找
|
||
for (const layer of layers) {
|
||
if (layer && layer.id === layerId) {
|
||
return { layer, parent };
|
||
}
|
||
|
||
// 如果是组图层，递归查找子图层
|
||
if (
|
||
layer &&
|
||
(layer.type === "group" ||
|
||
layer.type === LayerType.GROUP ||
|
||
(layer.children && Array.isArray(layer.children)))
|
||
) {
|
||
const result = findInChildLayers(layer.children, layerId, layer);
|
||
if (result) {
|
||
return result;
|
||
}
|
||
}
|
||
}
|
||
} catch (error) {
|
||
console.error(`查找图层 ${layerId} 时出错:`, error);
|
||
return {
|
||
layer: null,
|
||
parent: null,
|
||
};
|
||
}
|
||
|
||
console.warn(`图层 ${layerId} 未找到`);
|
||
return {
|
||
layer: null,
|
||
parent: null,
|
||
};
|
||
}
|
||
|
||
/**
|
||
* 在子图层中递归查找
|
||
* @param {Array} children 子图层数组
|
||
* @param {string} layerId 要查找的图层ID
|
||
* @param {Object} parent 父图层
|
||
* @returns {Object|null} 包含layer和parent的对象，如果未找到返回null
|
||
*/
|
||
export function findInChildLayers(children, layerId, parent) {
|
||
if (!children || !Array.isArray(children) || !layerId) {
|
||
return {
|
||
layer: null,
|
||
parent: null,
|
||
};
|
||
}
|
||
|
||
for (const child of children) {
|
||
if (child && child.id === layerId) {
|
||
return { layer: child, parent };
|
||
}
|
||
|
||
// 如果子图层也是组，继续递归查找
|
||
if (
|
||
child &&
|
||
(child.type === "group" || child.type === LayerType.GROUP) &&
|
||
child.children &&
|
||
Array.isArray(child.children)
|
||
) {
|
||
const result = findInChildLayers(child.children, layerId, child);
|
||
if (result && result.layer) {
|
||
return result;
|
||
}
|
||
}
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
/**
|
||
* 简单查找图层（仅在顶级图层中查找，不递归子图层）
|
||
* @param {Array} layers 图层数组
|
||
* @param {string} layerId 要查找的图层ID
|
||
* @returns {Object|null} 找到的图层对象，如果未找到返回null
|
||
*/
|
||
export function findLayer(layers, layerId) {
|
||
if (!layers || !Array.isArray(layers) || !layerId) {
|
||
return null;
|
||
}
|
||
|
||
return layers.find((layer) => layer && layer.id === layerId) || null;
|
||
}
|
||
|
||
/**
|
||
* 根据图层名称查找图层
|
||
* @param {Array} layers 图层数组
|
||
* @param {string} layerName 要查找的图层名称
|
||
* @param {boolean} recursive 是否递归查找子图层，默认false
|
||
* @returns {Object|null} 找到的图层对象，如果未找到返回null
|
||
*/
|
||
export function findLayerByName(layers, layerName, recursive = false) {
|
||
if (!layers || !Array.isArray(layers) || !layerName) {
|
||
return null;
|
||
}
|
||
|
||
for (const layer of layers) {
|
||
if (layer && layer.name === layerName) {
|
||
return layer;
|
||
}
|
||
|
||
// 如果需要递归查找且是组图层
|
||
if (
|
||
recursive &&
|
||
layer &&
|
||
(layer.type === "group" ||
|
||
layer.type === LayerType.GROUP ||
|
||
(layer.children && Array.isArray(layer.children)))
|
||
) {
|
||
const found = findLayerByName(layer.children, layerName, true);
|
||
if (found) {
|
||
return found;
|
||
}
|
||
}
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
/**
|
||
* 获取图层的完整路径（包含父图层信息）
|
||
* @param {Array} layers 图层数组
|
||
* @param {string} layerId 要查找的图层ID
|
||
* @returns {Array} 图层路径数组，从根图层到目标图层
|
||
*/
|
||
export function getLayerPath(layers, layerId) {
|
||
if (!layers || !Array.isArray(layers) || !layerId) {
|
||
return [];
|
||
}
|
||
|
||
function findPath(currentLayers, targetId, currentPath = []) {
|
||
for (const layer of currentLayers) {
|
||
if (!layer) continue;
|
||
|
||
const newPath = [...currentPath, layer];
|
||
|
||
if (layer.id === targetId) {
|
||
return newPath;
|
||
}
|
||
|
||
// 如果是组图层，递归查找
|
||
if (
|
||
layer.type === "group" ||
|
||
layer.type === LayerType.GROUP ||
|
||
(layer.children && Array.isArray(layer.children))
|
||
) {
|
||
const foundPath = findPath(layer.children, targetId, newPath);
|
||
if (foundPath.length > 0) {
|
||
return foundPath;
|
||
}
|
||
}
|
||
}
|
||
|
||
return [];
|
||
}
|
||
|
||
return findPath(layers, layerId);
|
||
}
|