feat: 优化字帖功能

miniprogram/focusPages/shape/shape.ts

@@ -1,9 +1,7 @@
 import { SHAPES, ShapeCard } from '../../constants/shapes';
 import { WATER_COLORS, PAPER_SIZE } from '../../constants/colors';
 import ShapeDrawService from '../../service/shapeDrawService';
-import { checkAndSaveImage } from '../../utils/saveImage';
-import { shouldShowShareGuide } from '../../utils/shareGuide';
-import tracker from '../../utils/tracker';
+import { downloadPrint } from '../../utils/downloadPrint';
 
 Page({
     canvas: null as Canvas | null,
@@ -286,22 +284,15 @@ Page({
     },
 
     /** 下载打印 */
-    exportToPrint() {
+    async exportToPrint() {
         if (!this.canvas || this.data.shapeList.length <= 0) {
             return;
         }
 
-        // 检查是否需要显示分享引导
-        if (shouldShowShareGuide()) {
-            this.setData({ showShareDialog: true });
-            return;
-        }
-
-        // 上报下载埋点
-        tracker.reportDownload('图形涂色');
-
-        // 直接下载
-        checkAndSaveImage(this.canvas);
+        await downloadPrint(this.canvas, {
+            errorToast: '请先生成图形',
+            trackerName: '图形涂色',
+        });
     },
 
     /** 关闭分享引导弹窗 */