feat: 准备修改header的渲染

miniprogram/canvasService/textDrawService.ts

@@ -13,7 +13,10 @@ class TextDrawService {
         this.ctx = ctx;
         this.paperSize = 'A4';
         this.options = {
+            appName: '涂鸦呀',
+            appHint: '涂色|识字|画画|认知',
             title: '找一找  涂  色',
+            subTitle: '把相同的文字涂上相同的颜色',
             radius: 80,
             colors: ['#2196F3', '#FFEB3B', '#FF9800', '#F44336'],
             characters: ['鱼', '鸟', '猫', '狗'],
@@ -30,6 +33,11 @@ class TextDrawService {
     }
 
     drawHeader() {
+        const { canvas, ctx } = this;
+        const { appName, appHint, title, subTitle } = this.options;
+    }
+
+    drawHeader2() {
         const { canvas, ctx } = this;
         const { title } = this.options;
 

miniprogram/canvasService/utils.ts

@@ -15,3 +15,23 @@ export function setCanvasSize(canvas: Canvas, paperSize: PaperSize) {
     console.log('canvas----:', canvas);
     return canvas;
 }
+
+export async function getMiniCodeImagePath() {
+    return getImagePath('/assets/imgs/mini-code.jpg');
+}
+
+export async function getImagePath(path: string) {
+    return new Promise((resolve) => {
+        // 如果是网络图片，需配置downloadFile域名
+        wx.getImageInfo({
+            src: path, // 本地图片路径
+            success: (res) => {
+                resolve(res.path);
+            },
+            fail: (err) => {
+                console.error('图片加载失败:', err);
+                resolve(''); // 可设置默认占位图
+            },
+        });
+    });
+}