feat: 绘制基础类重构

miniprogram/service/textDrawService.ts

@@ -1,3 +1,8 @@
+/**
+ * 找一找涂色，文字涂色服务
+ * 根据文字列表绘制到Canvas
+ */
+
 import { BaseDrawService } from '../core/draw/baseDraw';
 /**
  * 计算示例区域圆的中心点
@@ -70,16 +75,11 @@ class TextDrawService extends BaseDrawService {
         this.clear();
         this.setPaper();
 
-        // 绘制Header
-        if (this.headerType !== 'minimal') {
-            await this.drawHeader();
-        } else {
-            await this.drawMiniHeader();
-        }
-
+        await this.drawHeader();
         this.drawDivider();
         this.drawLegend();
         this.drawContent();
+        await this.drawPrintFooter();
     }
 
     /** 绘制示例
@@ -94,13 +94,12 @@ class TextDrawService extends BaseDrawService {
         const { ctx, colors, characters } = this;
         if (characters.length <= 0) return;
 
-        // 逻辑像素尺寸（原始尺寸除以3）
-        this.currentY = this.headerType === 'minimal' ? 68 : 110; // 200/3≈67, 304/3≈101
+        const legendTopY = this.currentY;
         const radius = 22; // 65/3≈22
         const rectWidth = 60; // 180/3=60
         const rectHeight = 27; // 80/3≈27
         const startX = 87 + radius; // (260+65)/3≈108
-        const startY = this.currentY + 10 + radius; // (30+65)/3≈32
+        const startY = legendTopY + 10 + radius; // (30+65)/3≈32
         const len = characters.length || 4;
         const centers = calculateCircleCenters(
             this.canvasWidth,
@@ -148,7 +147,7 @@ class TextDrawService extends BaseDrawService {
             );
         });
 
-        this.currentY = this.headerType === 'minimal' ? 178 : 230; // 522/3=174, 612/3=204
+        this.currentY = startY + radius + 14 + rectHeight + 24;
         this.drawDivider();
     }
 
@@ -157,7 +156,7 @@ class TextDrawService extends BaseDrawService {
         if (characters.length <= 0) return;
 
         const len = characters.length;
-        const rows = this.headerType === 'minimal' ? 9 : 8;
+        const rows = 8;
         const radius = 27; // 80/3≈27
         const fontSize = 24; // 72/3=24