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漫画布局面板设计系统

news 2025/9/6 14:36:44

漫画布局面板设计系统

功能展示

系统主界面

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完整的漫画布局设计工作区，包含工具栏、侧边栏、画布区域和属性面板

图片管理功能

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支持批量图片上传，提供图片库管理和拖拽添加功能

自定义形状编辑

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强大的自定义形状编辑器，支持创建任意多边形面板和特殊形状

布局保存功能

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完整的布局配置保存系统，支持项目管理和版本控制

导出功能

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多格式导出选项，支持PNG、JPG、PDF、SVG等格式，提供质量和分辨率控制

系统概述

项目背景

本系统是一个基于Web技术的专业漫画布局面板设计工具，旨在为漫画创作者提供直观、高效的面板布局设计体验。系统参考了Adobe Illustrator等专业设计软件的交互模式，结合漫画创作的特定需求，实现了一套完整的漫画页面设计解决方案。

核心特性

智能吸附系统: 像素级精度的边缘吸附和对齐辅助
多页面管理: 支持无限页面的漫画项目管理
自定义形状编辑: 强大的矢量形状绘制和编辑功能
专业布局工具: 多种自动化布局算法和对齐工具
实时预览: 所见即所得的设计体验

技术栈

后端: Node.js + Express.js
前端: 原生HTML5 + CSS3 + JavaScript ES6+
文件处理: Multer (文件上传)
图形处理: Canvas API + CSS clip-path
存储: 文件系统 + JSON配置

技术架构

系统架构图

┌─────────────────────────────────────────────────────────┐
│                    前端展示层                              │
├─────────────────────────────────────────────────────────┤
│  工具栏  │  侧边栏  │    画布区域    │  属性面板  │
│  ────────│  ────────│    ────────    │  ────────  │
│  页面管理 │  面板工具 │   漫画页面     │  样式设置  │
│  导出控制 │  形状库   │   缩放控制     │  对齐工具  │
│  ────────│  ────────│    ────────    │  ────────  │
├─────────────────────────────────────────────────────────┤
│                   JavaScript 核心层                      │
│  ┌─────────────┐ ┌─────────────┐ ┌─────────────┐        │
│  │ 吸附系统    │ │ 页面管理    │ │ 形状编辑器  │        │
│  │ SnapSystem  │ │ PageManager │ │ ShapeEditor │        │
│  └─────────────┘ └─────────────┘ └─────────────┘        │
│  ┌─────────────┐ ┌─────────────┐ ┌─────────────┐        │
│  │ 布局引擎    │ │ 事件管理    │ │ 渲染引擎    │        │
│  │ LayoutEngine│ │ EventManager│ │ RenderEngine│        │
│  └─────────────┘ └─────────────┘ └─────────────┘        │
├─────────────────────────────────────────────────────────┤
│                    Node.js 服务层                        │
│  ┌─────────────┐ ┌─────────────┐ ┌─────────────┐        │
│  │ 文件上传    │ │ 布局存储    │ │ 导出处理    │        │
│  │ FileUpload  │ │ LayoutStore │ │ ExportHandler│       │
│  └─────────────┘ └─────────────┘ └─────────────┘        │
├─────────────────────────────────────────────────────────┤
│                     文件存储层                           │
│  uploads/     │  layouts/     │  downloads/             │
│  (图片文件)   │  (布局配置)   │  (导出文件)             │
└─────────────────────────────────────────────────────────┘

模块化设计

系统采用面向对象的模块化设计，主要包含以下核心类：

ComicLayoutDesigner: 主控制器类
SnapSystem: 吸附系统
PageManager: 页面管理器
ShapeEditor: 形状编辑器
LayoutEngine: 布局引擎
EventManager: 事件管理器

核心功能详解

1. 智能吸附系统

功能描述

智能吸附系统是本项目的核心创新功能之一，提供了类似专业设计软件的精确对齐体验。

外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传

展示了自定义形状编辑功能，用户可以创建任意多边形面板，实现独特的布局效果

实现原理

class SnapSystem {constructor(snapDistance = 10) {this.snapDistance = snapDistance;this.snapLines = { vertical: [], horizontal: [] };this.showSnapLines = true;}// 计算吸附位置calculateSnapPositions() {const snapLines = { vertical: [], horizontal: [] };// 页面边界snapLines.vertical.push(0, this.pageWidth);snapLines.horizontal.push(0, this.pageHeight);// 其他面板边界document.querySelectorAll('.panel').forEach(panel => {if (panel === this.selectedPanel) return;const rect = panel.getBoundingClientRect();snapLines.vertical.push(rect.left, rect.right);snapLines.horizontal.push(rect.top, rect.bottom);});return snapLines;}// 查找最近的吸附点findSnapPosition(position, snapLines, axis) {const lines = axis === 'x' ? snapLines.vertical : snapLines.horizontal;for (let line of lines) {if (Math.abs(position - line) <= this.snapDistance) {this.showSnapLine(line, axis);return line;}}return position;}
}

关键特性

多重吸附: 支持面板边缘、页面边界的多重吸附
可调距离: 5-30像素的吸附敏感度控制
视觉反馈: 红色辅助线实时显示吸附状态
性能优化: 使用防抖机制避免频繁计算

2. 多页面管理系统

功能描述

支持创建和管理多个漫画页面，每个页面独立保存布局状态。

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图片上传和管理界面，支持批量上传图片并直接拖拽到面板中使用

数据结构

// 页面数据结构
const pageData = {id: 1,panels: new Map([['panel1', {id: 'panel1',x: 10,y: 10,width: 200,height: 150,imageUrl: '/uploads/image1.jpg',styles: {borderColor: '#007bff',borderWidth: '2px',backgroundColor: '#ffffff',borderRadius: '4px',opacity: '1'}}]]),settings: {width: 600,height: 800,backgroundColor: '#ffffff',showGrid: true,gridSize: 20}
};

实现机制

class PageManager {constructor() {this.pages = new Map();this.currentPageId = 1;}// 添加新页面addNewPage() {const newPageId = ++this.currentPageId;this.pages.set(newPageId.toString(), {id: newPageId,panels: new Map(),settings: { ...this.defaultPageSettings }});this.updatePageTabs();this.switchToPage(newPageId.toString());}// 保存当前页面状态saveCurrentPageState() {const currentPageData = {panels: new Map(),settings: { ...this.pageSettings }};document.querySelectorAll('.panel').forEach(panel => {// 保存面板数据currentPageData.panels.set(panel.dataset.panelId, {// 面板属性...});});this.pages.set(this.currentPageId.toString(), currentPageData);}
}

3. 自定义形状编辑器

功能描述

强大的矢量形状绘制和编辑功能，支持任意多边形的创建和CSS clip-path的应用。

Canvas绘制引擎

class ShapeEditor {constructor() {this.canvas = document.getElementById('shapeCanvas');this.ctx = this.canvas.getContext('2d');this.shapePoints = [];this.isDrawing = false;}// 处理画布点击事件handleCanvasClick(e) {const rect = this.canvas.getBoundingClientRect();const x = e.clientX - rect.left;const y = e.clientY - rect.top;this.shapePoints.push({ x, y });this.redrawShape();}// 重绘形状redrawShape(closed = false) {this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);if (this.shapePoints.length === 0) return;// 绘制形状路径this.ctx.beginPath();this.ctx.moveTo(this.shapePoints[0].x, this.shapePoints[0].y);for (let i = 1; i < this.shapePoints.length; i++) {this.ctx.lineTo(this.shapePoints[i].x, this.shapePoints[i].y);}if (closed) {this.ctx.closePath();this.ctx.fillStyle = 'rgba(0, 123, 255, 0.2)';this.ctx.fill();}this.ctx.strokeStyle = '#007bff';this.ctx.lineWidth = 2;this.ctx.stroke();// 绘制控制点this.drawControlPoints();}// 应用自定义形状applyCustomShape() {const pathPoints = this.shapePoints.map(point => `${(point.x / this.canvas.width * 100)}% ${(point.y / this.canvas.height * 100)}%`).join(', ');const clipPath = `polygon(${pathPoints})`;this.selectedPanel.style.clipPath = clipPath;}
}

预设形状库

系统内置了多种预设形状：

星形: 10个点的五角星
六边形: 正六边形
心形: 简化的心形轮廓
对话框: 带尖角的对话气泡

4. 专业对齐工具

对齐算法实现

class AlignmentTools {// 左对齐alignLeft(panels) {const rects = panels.map(panel => panel.getBoundingClientRect());const minLeft = Math.min(...rects.map(r => r.left));panels.forEach(panel => {const pageRect = panel.parentElement.getBoundingClientRect();panel.style.left = (minLeft - pageRect.left) + 'px';});}// 水平居中对齐alignCenter(panels) {const rects = panels.map(panel => panel.getBoundingClientRect());const minLeft = Math.min(...rects.map(r => r.left));const maxRight = Math.max(...rects.map(r => r.right));const centerX = (minLeft + maxRight) / 2;panels.forEach((panel, i) => {const pageRect = panel.parentElement.getBoundingClientRect();const newLeft = centerX - rects[i].width / 2;panel.style.left = (newLeft - pageRect.left) + 'px';});}// 水平分布distributeHorizontally(panels) {if (panels.length < 3) return;const sorted = panels.map((panel, i) => ({panel,rect: panel.getBoundingClientRect()})).sort((a, b) => a.rect.left - b.rect.left);const totalSpace = sorted[sorted.length - 1].rect.left - sorted[0].rect.right;const gap = totalSpace / (sorted.length - 1);for (let i = 1; i < sorted.length - 1; i++) {const newLeft = sorted[0].rect.right + gap * i;const pageRect = sorted[i].panel.parentElement.getBoundingClientRect();sorted[i].panel.style.left = (newLeft - pageRect.left) + 'px';}}
}

5. 高级布局引擎

自动排列算法

class LayoutEngine {// 自动网格排列autoArrangePanels() {const panels = Array.from(document.querySelectorAll('.panel'));const cols = Math.ceil(Math.sqrt(panels.length));const rows = Math.ceil(panels.length / cols);const pageWidth = this.pageSettings.width;const pageHeight = this.pageSettings.height;const gutter = parseInt(document.getElementById('gutterSize').value);const panelWidth = (pageWidth - gutter * (cols + 1)) / cols;const panelHeight = (pageHeight - gutter * (rows + 1)) / rows;panels.forEach((panel, index) => {const row = Math.floor(index / cols);const col = index % cols;const x = gutter + col * (panelWidth + gutter);const y = gutter + row * (panelHeight + gutter);this.setPanelPosition(panel, x, y, panelWidth, panelHeight);});}// 流式布局applyFlowLayout() {const panels = Array.from(document.querySelectorAll('.panel'));const pageWidth = this.pageSettings.width;const gutter = parseInt(document.getElementById('gutterSize').value);let currentX = gutter;let currentY = gutter;let rowHeight = 0;panels.forEach(panel => {const rect = panel.getBoundingClientRect();// 换行检测if (currentX + rect.width > pageWidth - gutter) {currentX = gutter;currentY += rowHeight + gutter;rowHeight = 0;}this.setPanelPosition(panel, currentX, currentY);currentX += rect.width + gutter;rowHeight = Math.max(rowHeight, rect.height);});}
}

6. 缩放与视图控制

缩放系统实现

class ViewportController {constructor() {this.currentZoom = 1;this.minZoom = 0.1;this.maxZoom = 3;}// 缩放控制zoomIn() {this.currentZoom = Math.min(this.currentZoom * 1.2, this.maxZoom);this.applyZoom();}zoomOut() {this.currentZoom = Math.max(this.currentZoom / 1.2, this.minZoom);this.applyZoom();}// 适应屏幕fitToScreen() {const container = document.querySelector('.canvas-container');const page = document.getElementById('comicPage');const containerRect = container.getBoundingClientRect();const pageRect = page.getBoundingClientRect();const scaleX = (containerRect.width - 40) / pageRect.width;const scaleY = (containerRect.height - 40) / pageRect.height;this.currentZoom = Math.min(scaleX, scaleY);this.applyZoom();}// 应用缩放applyZoom() {const page = document.getElementById('comicPage');page.style.transform = `scale(${this.currentZoom})`;page.style.transformOrigin = 'center center';document.getElementById('zoomLevel').textContent = Math.round(this.currentZoom * 100) + '%';}
}

实现原理

事件系统架构

事件流设计

系统采用事件驱动的架构模式，主要事件流包括：

用户交互事件: 鼠标点击、拖拽、键盘输入
面板操作事件: 创建、删除、移动、调整大小
页面管理事件: 切换、创建、删除页面
布局变更事件: 对齐、分布、自动排列

事件处理机制

class EventManager {constructor() {this.eventHandlers = new Map();this.setupGlobalEvents();}// 注册事件处理器on(eventType, handler) {if (!this.eventHandlers.has(eventType)) {this.eventHandlers.set(eventType, []);}this.eventHandlers.get(eventType).push(handler);}// 触发事件emit(eventType, data) {const handlers = this.eventHandlers.get(eventType);if (handlers) {handlers.forEach(handler => handler(data));}}// 设置全局事件监听setupGlobalEvents() {document.addEventListener('mousedown', this.handleMouseDown.bind(this));document.addEventListener('mousemove', this.handleMouseMove.bind(this));document.addEventListener('mouseup', this.handleMouseUp.bind(this));document.addEventListener('keydown', this.handleKeyDown.bind(this));}
}

拖拽系统实现

拖拽状态管理

class DragSystem {constructor() {this.isDragging = false;this.isResizing = false;this.dragOffset = { x: 0, y: 0 };this.selectedPanel = null;this.resizeHandle = null;}// 开始拖拽startDrag(panel, e) {this.isDragging = true;this.selectedPanel = panel;const rect = panel.getBoundingClientRect();this.dragOffset.x = e.clientX - rect.left;this.dragOffset.y = e.clientY - rect.top;panel.classList.add('dragging');}// 拖拽过程updateDrag(e) {if (!this.isDragging || !this.selectedPanel) return;const comicPage = document.getElementById('comicPage');const pageRect = comicPage.getBoundingClientRect();let x = e.clientX - pageRect.left - this.dragOffset.x;let y = e.clientY - pageRect.top - this.dragOffset.y;// 应用吸附if (this.snapSystem.enabled) {const snapLines = this.snapSystem.calculateSnapPositions();x = this.snapSystem.findSnapPosition(x, snapLines, 'x');y = this.snapSystem.findSnapPosition(y, snapLines, 'y');}// 边界约束x = Math.max(0, Math.min(x, pageRect.width - this.selectedPanel.offsetWidth));y = Math.max(0, Math.min(y, pageRect.height - this.selectedPanel.offsetHeight));this.selectedPanel.style.left = x + 'px';this.selectedPanel.style.top = y + 'px';}
}

渲染优化

虚拟DOM概念

虽然使用原生JavaScript，但系统实现了类似虚拟DOM的概念来优化渲染性能：

class RenderEngine {constructor() {this.renderQueue = [];this.isRendering = false;}// 批量渲染更新batchUpdate(updates) {this.renderQueue.push(...updates);if (!this.isRendering) {requestAnimationFrame(() => this.processRenderQueue());}}// 处理渲染队列processRenderQueue() {this.isRendering = true;while (this.renderQueue.length > 0) {const update = this.renderQueue.shift();this.applyUpdate(update);}this.isRendering = false;}// 应用更新applyUpdate(update) {const { element, properties } = update;Object.assign(element.style, properties);}
}

API接口文档

RESTful API设计

文件上传接口

POST /api/upload
Content-Type: multipart/form-data参数:
- image: File (图片文件)响应:
{"success": true,"filename": "uuid-generated-name.jpg","url": "/uploads/uuid-generated-name.jpg","originalName": "original-filename.jpg","size": 1024576,"mimeType": "image/jpeg"
}错误响应:
{"success": false,"error": "文件大小超过限制","code": "FILE_TOO_LARGE"
}

获取图片列表

GET /api/images响应:
[{"filename": "uuid-name-1.jpg","url": "/uploads/uuid-name-1.jpg","uploadTime": "2024-01-01T00:00:00Z","size": 1024576},{"filename": "uuid-name-2.png","url": "/uploads/uuid-name-2.png","uploadTime": "2024-01-01T01:00:00Z","size": 2048576}
]

保存布局配置

POST /api/save-layout
Content-Type: application/json请求体:
{"name": "我的漫画布局","description": "第一章的布局设计","pages": [{"id": "1","panels": [{"id": "panel1","x": 10,"y": 10,"width": 200,"height": 150,"imageUrl": "/uploads/image1.jpg","styles": {"borderColor": "#007bff","borderWidth": "2px","backgroundColor": "#ffffff","borderRadius": "4px","opacity": "1","clipPath": "none"}}],"settings": {"width": 600,"height": 800,"backgroundColor": "#ffffff","showGrid": true,"gridSize": 20,"readingDirection": "ltr"}}],"globalSettings": {"gutterSize": 8,"snapDistance": 10,"showSnapLines": true}
}响应:
{"success": true,"layoutId": "uuid-layout-id","message": "布局保存成功","savedAt": "2024-01-01T00:00:00Z"
}

布局保存功能展示

在这里插入图片描述

布局保存功能界面，展示了完整的布局配置保存和管理系统

导出漫画

POST /api/export
Content-Type: application/json请求体:
{"format": "png|jpg|pdf|svg","quality": 0.9,"resolution": 1,"range": "current|all|selected","pageIds": ["1", "2", "3"],"options": {"includeBackground": true,"transparentBackground": false,"margins": {"top": 0,"right": 0,"bottom": 0,"left": 0}}
}响应:
{"success": true,"message": "导出成功","files": [{"pageId": "1","filename": "page-1.png","downloadUrl": "/downloads/page-1.png","size": 1024576}],"zipUrl": "/downloads/comic-export.zip"
}

导出功能界面展示

在这里插入图片描述

导出设置界面，提供多种格式选择、质量控制和分辨率设置选项，支持单页面或批量导出

错误处理

统一错误响应格式

// 错误响应结构
{"success": false,"error": "错误描述","code": "ERROR_CODE","details": {// 详细错误信息},"timestamp": "2024-01-01T00:00:00Z"
}// 常见错误代码
const ERROR_CODES = {FILE_TOO_LARGE: 'FILE_TOO_LARGE',INVALID_FILE_TYPE: 'INVALID_FILE_TYPE',LAYOUT_NOT_FOUND: 'LAYOUT_NOT_FOUND',EXPORT_FAILED: 'EXPORT_FAILED',VALIDATION_ERROR: 'VALIDATION_ERROR'
};

数据结构设计

核心数据模型

面板数据结构

const PanelSchema = {id: String,                    // 唯一标识符x: Number,                     // X坐标位置y: Number,                     // Y坐标位置width: Number,                 // 面板宽度height: Number,                // 面板高度zIndex: Number,                // 层级顺序imageUrl: String,              // 图片URLcontent: {                     // 面板内容type: String,                // 内容类型: 'image' | 'text' | 'empty'data: Object                 // 内容数据},styles: {                      // 样式配置borderColor: String,         // 边框颜色borderWidth: String,         // 边框宽度backgroundColor: String,     // 背景颜色borderRadius: String,        // 圆角半径opacity: Number,             // 透明度clipPath: String,            // 裁剪路径boxShadow: String           // 阴影效果},transform: {                   // 变换属性rotation: Number,            // 旋转角度scaleX: Number,              // X轴缩放scaleY: Number               // Y轴缩放},metadata: {                    // 元数据createdAt: Date,             // 创建时间updatedAt: Date,             // 更新时间tags: Array                  // 标签}
};

页面数据结构

const PageSchema = {id: String,                    // 页面IDname: String,                  // 页面名称panels: Map,                   // 面板集合settings: {                    // 页面设置width: Number,               // 页面宽度height: Number,              // 页面高度backgroundColor: String,     // 背景颜色backgroundImage: String,     // 背景图片showGrid: Boolean,           // 显示网格gridSize: Number,            // 网格大小readingDirection: String,    // 阅读方向margins: {                   // 页边距top: Number,right: Number,bottom: Number,left: Number}},layout: {                      // 布局信息type: String,                // 布局类型columns: Number,             // 列数rows: Number,                // 行数gutterSize: Number          // 间距大小},metadata: {createdAt: Date,updatedAt: Date,version: String}
};

项目数据结构

const ProjectSchema = {id: String,                    // 项目IDname: String,                  // 项目名称description: String,           // 项目描述pages: Map,                    // 页面集合globalSettings: {              // 全局设置defaultPageWidth: Number,defaultPageHeight: Number,snapDistance: Number,showSnapLines: Boolean,autoSave: Boolean,autoSaveInterval: Number},resources: {                   // 资源管理images: Array,               // 图片资源fonts: Array,                // 字体资源templates: Array             // 模板资源},exportSettings: {              // 导出设置defaultFormat: String,defaultQuality: Number,defaultResolution: Number},metadata: {author: String,createdAt: Date,updatedAt: Date,version: String,tags: Array}
};

状态管理

应用状态结构

const AppState = {// 当前状态current: {projectId: String,pageId: String,selectedPanels: Set,tool: String,                // 当前工具mode: String                 // 当前模式},// 视图状态viewport: {zoom: Number,offsetX: Number,offsetY: Number,showRulers: Boolean,showGuides: Boolean},// 编辑状态editing: {isDragging: Boolean,isResizing: Boolean,isDrawing: Boolean,dragOffset: Object,resizeHandle: String},// 历史记录history: {undoStack: Array,redoStack: Array,maxHistorySize: Number}
};

性能优化

渲染性能优化

1. 虚拟化渲染

对于大量面板的情况，实现视口裁剪：

class VirtualRenderer {constructor(viewport) {this.viewport = viewport;this.visiblePanels = new Set();}// 计算可见面板calculateVisiblePanels() {const viewportRect = this.viewport.getBoundingClientRect();const panels = document.querySelectorAll('.panel');this.visiblePanels.clear();panels.forEach(panel => {const panelRect = panel.getBoundingClientRect();if (this.isIntersecting(viewportRect, panelRect)) {this.visiblePanels.add(panel);panel.style.display = 'block';} else {panel.style.display = 'none';}});}// 检测矩形相交isIntersecting(rect1, rect2) {return !(rect1.right < rect2.left || rect1.left > rect2.right || rect1.bottom < rect2.top || rect1.top > rect2.bottom);}
}

2. 事件防抖优化

class PerformanceOptimizer {constructor() {this.debounceTimers = new Map();this.throttleTimers = new Map();}// 防抖函数debounce(key, func, delay = 300) {if (this.debounceTimers.has(key)) {clearTimeout(this.debounceTimers.get(key));}const timer = setTimeout(() => {func();this.debounceTimers.delete(key);}, delay);this.debounceTimers.set(key, timer);}// 节流函数throttle(key, func, interval = 16) {if (this.throttleTimers.has(key)) {return;}const timer = setTimeout(() => {func();this.throttleTimers.delete(key);}, interval);this.throttleTimers.set(key, timer);}
}

内存管理

对象池模式

class ObjectPool {constructor(createFn, resetFn, maxSize = 100) {this.createFn = createFn;this.resetFn = resetFn;this.maxSize = maxSize;this.pool = [];}// 获取对象acquire() {if (this.pool.length > 0) {return this.pool.pop();}return this.createFn();}// 释放对象release(obj) {if (this.pool.length < this.maxSize) {this.resetFn(obj);this.pool.push(obj);}}
}// 面板对象池
const panelPool = new ObjectPool(() => document.createElement('div'),(panel) => {panel.className = 'panel';panel.style.cssText = '';panel.innerHTML = '';}
);

数据优化

增量更新

class IncrementalUpdater {constructor() {this.lastSnapshot = null;this.changeLog = [];}// 创建快照createSnapshot(data) {return JSON.parse(JSON.stringify(data));}// 计算差异calculateDiff(oldData, newData) {const changes = [];// 深度比较算法this.deepCompare(oldData, newData, '', changes);return changes;}// 应用增量更新applyIncrementalUpdate(changes) {changes.forEach(change => {this.applyChange(change);});}
}

扩展开发指南

插件系统设计

插件接口定义

class PluginInterface {constructor() {this.plugins = new Map();this.hooks = new Map();}// 注册插件registerPlugin(name, plugin) {if (this.validatePlugin(plugin)) {this.plugins.set(name, plugin);plugin.install(this);}}// 验证插件validatePlugin(plugin) {return typeof plugin.install === 'function' &&typeof plugin.name === 'string' &&typeof plugin.version === 'string';}// 注册钩子registerHook(hookName, callback) {if (!this.hooks.has(hookName)) {this.hooks.set(hookName, []);}this.hooks.get(hookName).push(callback);}// 触发钩子triggerHook(hookName, data) {const callbacks = this.hooks.get(hookName);if (callbacks) {callbacks.forEach(callback => callback(data));}}
}

示例插件：网格吸附增强

class GridSnapPlugin {constructor() {this.name = 'grid-snap-enhanced';this.version = '1.0.0';}install(app) {// 注册钩子app.registerHook('panel-move', this.onPanelMove.bind(this));app.registerHook('panel-resize', this.onPanelResize.bind(this));// 添加UI控件this.addGridControls();}onPanelMove(data) {const { panel, position } = data;const gridSize = this.getGridSize();// 网格吸附计算const snappedPosition = {x: Math.round(position.x / gridSize) * gridSize,y: Math.round(position.y / gridSize) * gridSize};return snappedPosition;}addGridControls() {const toolbar = document.querySelector('.toolbar');const gridButton = document.createElement('button');gridButton.textContent = '网格吸附';gridButton.onclick = this.toggleGridSnap.bind(this);toolbar.appendChild(gridButton);}
}

自定义工具开发

工具基类

class BaseTool {constructor(name) {this.name = name;this.isActive = false;this.cursor = 'default';}// 激活工具activate() {this.isActive = true;document.body.style.cursor = this.cursor;this.onActivate();}// 停用工具deactivate() {this.isActive = false;document.body.style.cursor = 'default';this.onDeactivate();}// 处理鼠标事件handleMouseDown(e) {}handleMouseMove(e) {}handleMouseUp(e) {}// 生命周期钩子onActivate() {}onDeactivate() {}
}

示例工具：圆形绘制工具

class CircleTool extends BaseTool {constructor() {super('circle');this.cursor = 'crosshair';this.startPoint = null;this.isDrawing = false;}handleMouseDown(e) {if (!this.isActive) return;this.startPoint = { x: e.clientX, y: e.clientY };this.isDrawing = true;// 创建预览圆形this.previewCircle = this.createPreviewCircle();document.body.appendChild(this.previewCircle);}handleMouseMove(e) {if (!this.isDrawing) return;const currentPoint = { x: e.clientX, y: e.clientY };const radius = this.calculateDistance(this.startPoint, currentPoint);// 更新预览圆形this.updatePreviewCircle(this.startPoint, radius);}handleMouseUp(e) {if (!this.isDrawing) return;const currentPoint = { x: e.clientX, y: e.clientY };const radius = this.calculateDistance(this.startPoint, currentPoint);// 创建实际圆形面板this.createCirclePanel(this.startPoint, radius);// 清理预览this.cleanupPreview();this.isDrawing = false;}createCirclePanel(center, radius) {const panel = document.createElement('div');panel.className = 'panel circle-panel';panel.style.left = (center.x - radius) + 'px';panel.style.top = (center.y - radius) + 'px';panel.style.width = (radius * 2) + 'px';panel.style.height = (radius * 2) + 'px';panel.style.borderRadius = '50%';document.getElementById('comicPage').appendChild(panel);}
}

主题系统

主题配置结构

const ThemeSchema = {name: String,colors: {primary: String,secondary: String,accent: String,background: String,surface: String,text: String,border: String},typography: {fontFamily: String,fontSize: {small: String,medium: String,large: String}},spacing: {small: String,medium: String,large: String},shadows: {small: String,medium: String,large: String}
};

主题管理器

class ThemeManager {constructor() {this.themes = new Map();this.currentTheme = null;this.loadBuiltinThemes();}// 注册主题registerTheme(name, theme) {this.themes.set(name, theme);}// 应用主题applyTheme(themeName) {const theme = this.themes.get(themeName);if (!theme) return;this.currentTheme = theme;this.updateCSSVariables(theme);this.triggerThemeChange(theme);}// 更新CSS变量updateCSSVariables(theme) {const root = document.documentElement;Object.entries(theme.colors).forEach(([key, value]) => {root.style.setProperty(`--color-${key}`, value);});Object.entries(theme.spacing).forEach(([key, value]) => {root.style.setProperty(`--spacing-${key}`, value);});}
}

国际化支持

多语言配置

const i18nConfig = {'zh-CN': {'toolbar.new': '新建','toolbar.save': '保存','toolbar.export': '导出','panel.split.horizontal': '水平分割','panel.split.vertical': '垂直分割'},'en-US': {'toolbar.new': 'New','toolbar.save': 'Save','toolbar.export': 'Export','panel.split.horizontal': 'Split Horizontal','panel.split.vertical': 'Split Vertical'}
};class I18nManager {constructor() {this.locale = 'zh-CN';this.messages = i18nConfig;}// 获取翻译文本t(key, params = {}) {const message = this.messages[this.locale][key] || key;return this.interpolate(message, params);}// 插值处理interpolate(message, params) {return message.replace(/\{(\w+)\}/g, (match, key) => {return params[key] || match;});}// 切换语言setLocale(locale) {this.locale = locale;this.updateUI();}
}