增加红白框中间的文字

Cad/TemplateDrawingService.cs

@@ -3396,5 +3396,77 @@ namespace CadParamPluging.Cad
 
             return true;
         }
+
+        /// <summary>
+        /// 在红色边框与白色边框之间的左上角添加"内部资料，控制范围"文字标记
+        /// </summary>
+        /// <param name="ctx">CAD上下文</param>
+        /// <param name="layoutName">布局名称</param>
+        /// <param name="isModelSpace">是否为模型空间</param>
+        /// <returns>是否成功添加</returns>
+        public static bool AddInternalMaterialLabel(CadContext ctx, string layoutName, bool isModelSpace)
+        {
+            if (ctx == null)
+            {
+                return false;
+            }
+
+            var db = ctx.Database;
+            var tr = ctx.Transaction;
+
+            var bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
+            var ms = (BlockTableRecord)tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
+
+            var allEntities = ms.Cast<ObjectId>()
+                .Select(id => tr.GetObject(id, OpenMode.ForRead, false) as Entity)
+                .Where(e => e != null && !e.IsErased)
+                .ToList();
+
+            // 获取红色边框和白色边框范围
+            var redFrameExtents = ComputeRedFrameExtents(tr, allEntities);
+            var whiteFrameExtents = ComputeWhiteFrameExtentsFromEntities(tr, allEntities);
+
+            if (!redFrameExtents.HasValue || !whiteFrameExtents.HasValue)
+            {
+                return false;
+            }
+
+            var redFrame = redFrameExtents.Value;
+            var whiteFrame = whiteFrameExtents.Value;
+
+            // 计算插入点：在红框和白框之间的左上角
+            // X: 红框左边界稍内侧
+            // Y: 红框顶部和白框顶部之间，偏上方
+            var insertX = redFrame.MinPoint.X + 2.0;  // 距红框左边2mm
+            var insertY = (redFrame.MaxPoint.Y + whiteFrame.MaxPoint.Y) / 2.0;  // 红框与白框顶部中间
+
+            var insertPoint = new Point3d(insertX, insertY, 0);
+
+            // 创建 MText
+            var mt = new MText();
+            // 使用宋体格式
+            mt.Contents = @"{\fSimSun|b0|i0|c134|p2;内部资料，控制范围}";
+            mt.Location = insertPoint;
+            mt.TextHeight = 3.5;
+            mt.Attachment = AttachmentPoint.MiddleLeft;  // 左对齐，垂直居中
+            mt.Width = 0;  // 不换行
+            mt.ColorIndex = 4;  // 青色
+
+            // 尝试设置图层
+            try
+            {
+                var layerTbl = (LayerTable)tr.GetObject(db.LayerTableId, OpenMode.ForRead);
+                string targetLayer = "0";
+                if (layerTbl.Has("TEXT")) targetLayer = "TEXT";
+                else if (layerTbl.Has("文字")) targetLayer = "文字";
+                mt.Layer = targetLayer;
+            }
+            catch { }
+
+            ms.AppendEntity(mt);
+            tr.AddNewlyCreatedDBObject(mt, true);
+
+            return true;
+        }
     }
 }

UI/ParamDrawingPanel.cs

@@ -462,6 +462,14 @@ namespace CadParamPluging.UI
                         }
                     }
 
+                    // 添加左上角"内部资料，控制范围"标记
+                    var labelAdded = TemplateDrawingService.AddInternalMaterialLabel(
+                        ctx, layoutName, isModelSpace);
+                    if (labelAdded)
+                    {
+                        AppendLog("已添加内部资料标记");
+                    }
+
                     ctx.Commit();
 
                     try { doc.Editor.Regen(); } catch { }