From a21f661abfe06e098eb8a6ca590b706d4a7248cf Mon Sep 17 00:00:00 2001
From: wangzemei <wangzemei@easycorp.ltd>
Date: Thu, 5 Sep 2024 16:13:17 +0800
Subject: [PATCH] + [task#127424] add region coloring logic of think3c widget.

---
 lib/zin/wg/think3c/js/v1.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/lib/zin/wg/think3c/js/v1.js b/lib/zin/wg/think3c/js/v1.js
index 2b4c865fb2..6d94c0b04e 100644
--- a/lib/zin/wg/think3c/js/v1.js
+++ b/lib/zin/wg/think3c/js/v1.js
@@ -202,7 +202,26 @@ function colorRegions(binaryImageData)
                 ctx.save();
 
                 ctx.fillStyle = colors[colorIndex % colors.length];
+
+                /* 遍历区域所有行，进行颜色填充。 */
+                /* Traverse all rows in the region and fill them with colors. */
+                region.rows.forEach((row, key) => {
+                    if(row)
+                    {
+                        if(Array.isArray(row))
+                        {
+                            row.forEach((item) => {
+                                ctx.fillRect(item.left, key, item.right - item.left + 1, 1);
+                            });
+                        }
+                        else
+                        {
+                            ctx.fillRect(row.left, key, row.right - row.left + 1, 1);
+                        }
+                    }
+                });
             });
+
             resolve(canvas.toDataURL());
         };
     });