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feat:练字贴功能基本完成

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This commit is contained in:
R524809
2025-10-30 18:21:38 +08:00
parent c4f27f2125
commit 2e0f8f0fe1
19 changed files with 450 additions and 564 deletions
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miniprogram/pages/copyBook/copyBook.ts
+66 -34
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@@ -2,6 +2,7 @@ import WordDrawService from '../../service/wordDrawService';
import { checkAndSaveImage } from '../../utils/saveImage';
import { PAPER_SIZE } from '../../constants/colors';
import { getWordsSvgData } from '../../utils/getWordsSvgJson';
import { WORDS } from '../../constants/words';
import { CharacterItem } from '../../types/characterType';
Page({
@@ -9,6 +10,8 @@ Page({
ctx: null as RenderingContext | null,
wordDrawService: null as WordDrawService | null,
svgWords: {} as Record<string, string[]>,
maxRow: 0 as number,
maxCol: 0 as number,
data: {
// 选中的汉字列表
@@ -21,18 +24,17 @@ Page({
boxHeight: 0,
},
onLoad() {
this.loadSvgWords();
const hasShowIntroduction =
wx.getStorageSync('hasShowIntroduction') || false;
if (!hasShowIntroduction) {
async onLoad() {
await this.loadSvgWords();
const hasShowPracticeDemo =
wx.getStorageSync('hasShowPracticeDemo') || false;
if (!hasShowPracticeDemo) {
this.setData({
words: ['好', '好', '学', '习', '天', '天', '向', '上']
}, () => {
wx.setStorageSync('hasShowPracticeDemo', true);
})
}
},
async onReady() {
await this.setCanvasBoxSize();
await this.initCanvas()
},
@@ -40,12 +42,9 @@ Page({
async loadSvgWords() {
try {
wx.showToast({ title: '加载字体中...', icon: 'loading' });
console.log("loadSvgWords");
// 使用带缓存的SVG汉字数据获取函数
const svgWordsData = await getWordsSvgData();
console.log("svgWordsData", svgWordsData);
this.svgWords = svgWordsData;
wx.hideToast();
@@ -147,6 +146,30 @@ Page({
this.setData({ words: next }, () => this.renderPracticeContent().catch(console.error));
},
// 清空
clearWords() {
this.setData({ words: [] }, () => this.renderPracticeContent().catch(console.error));
},
// 随机生成（取基础分类，过滤为可用SVG字，最多11个）
refreshWords() {
// 选取较简单的几个分类（如 0:基础独体字，1:生活高频字，2:自然与动作）
const candidate = WORDS.slice(0, 3).reduce((acc: string[], c: any) => acc.concat(c.words), [] as string[]);
// 去重
const unique = Array.from(new Set(candidate));
// 打乱
const shuffled = unique.sort(() => Math.random() - 0.5);
// 先取前 11 个
const picked = shuffled.slice(0, 10);
// 过滤为支持的SVG字
const supported = this.getSupportedWords(picked);
if (supported.length === 0) {
wx.showToast({ title: '随机到的字暂不支持，重试一下', icon: 'none' });
return;
}
this.setData({ words: supported }, () => this.renderPracticeContent().catch(console.error));
},
// 校验 & 分割
isChineseText(text: string): boolean {
const chineseRegex = /^[\u4e00-\u9fff]+$/;
@@ -189,16 +212,16 @@ Page({
if (ctx) {
this.canvas = canvas;
this.ctx = ctx;
this.wordDrawService = new WordDrawService(canvas, ctx, {
appName: '涂鸦丫小程序',
appHint: '练字|识字|涂色｜打印',
title: '田字格 练 字 贴',
subTitle: '按笔画临摹练习'
});
this.wordDrawService = new WordDrawService(canvas, ctx);
// 初始化时只绘制页眉和布局
await this.wordDrawService.drawLayout();
// 绘制完成后计算并缓存最大行列数（与实际绘制一致）
const { maxRow, maxCol } = this.wordDrawService.getMaxGridLayout();
this.maxRow = maxRow;
this.maxCol = maxCol;
// 如果有汉字数据，绘制练字内容
const { words } = this.data as any;
if (words && words.length > 0) {
@@ -220,7 +243,6 @@ Page({
}
const { words } = this.data as any;
console.log("renderPracticeContent words", words);
if (!words || words.length === 0) {
this.wordDrawService.drawContentEmpty();
@@ -235,8 +257,19 @@ Page({
return;
}
// 处理布局和生成练字数据
const characterData = this.processCharacterLayout(supportedWords);
// 使用初始化阶段缓存的最大行列数；若未初始化则计算一次并缓存
let maxRow = this.maxRow;
let maxCol = this.maxCol;
if (!maxRow || !maxCol) {
const layout = this.wordDrawService!.getMaxGridLayout();
this.maxRow = layout.maxRow;
this.maxCol = layout.maxCol;
maxRow = layout.maxRow;
maxCol = layout.maxCol;
}
// 处理布局和生成练字数据（基于实际最大行列数）
const characterData = this.processCharacterLayout(supportedWords, maxRow, maxCol);
this.wordDrawService.drawPracticeContent(characterData);
},
@@ -247,8 +280,7 @@ Page({
},
/** 处理汉字布局，生成练字数据 */
processCharacterLayout(words: string[]): CharacterItem[] {
const maxRow = 11, maxCol = 9;
processCharacterLayout(words: string[], maxRow: number, maxCol: number): CharacterItem[] {
let rowIndex = 0;
const characterData: CharacterItem[] = [];
const boundaryWords: string[] = [];
@@ -257,10 +289,12 @@ Page({
words.forEach((word: string) => {
const strokes = this.svgWords[word];
const strokeCount = strokes.length;
const totalCells = 1 + strokeCount + 2; // 预览格 + 练习格 + 空白格
const totalCells = 1 + strokeCount + 0; // 预览格 + 练习格 + 空白格
const totalRows = Math.ceil(totalCells / maxCol);
rowIndex += totalRows;
// 这里的意思是：把这一个汉字所占的行数（totalRows）累加到 rowIndex 上。
// 这样 rowIndex 就记录了当前已经排布了多少行，用于判断是否超出了最大允许行数（maxRow）。
rowIndex = rowIndex + totalRows;
if (rowIndex <= maxRow) {
characterData.push({ character: word, strokes });
@@ -268,22 +302,20 @@ Page({
boundaryWords.push(word);
}
});
// 提示超出页面的汉字
if (boundaryWords.length > 0) {
wx.showToast({
title: `练字贴已超过一页，部分汉字未包含在本次生成结果中`,
icon: 'none'
});
}
// // 提示超出页面的汉字
// if (showToast && boundaryWords.length > 0) {
// wx.showToast({
// title: `练字贴已超过一页，部分汉字未包含在本次生成结果中`,
// icon: 'none'
// });
// }
return characterData;
},
// 下载打印练字贴
exportToPrint() {
const { words } = this.data as any;
if (!this.canvas || words.length <= 0) {
if (!this.canvas) {
wx.showToast({ title: '请先生成练字贴', icon: 'none' });
return;
}