模板解析OK

win_text_editor/lib/modules/template_parser/widgets/template_grid_view.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:syncfusion_flutter_datagrid/datagrid.dart';
+import 'package:win_text_editor/framework/controllers/logger.dart';
 import 'package:win_text_editor/modules/template_parser/controllers/template_parser_controller.dart';
 import 'package:win_text_editor/modules/template_parser/models/template_node.dart';
 import 'package:file_picker/file_picker.dart';
@@ -18,9 +19,9 @@ class TemplateGridView extends StatelessWidget {
         return GestureDetector(
           onSecondaryTapDown: (details) {
             _showContextMenu(context, details.globalPosition, controller);
-      },
-          child: _buildGridView(controller.templateItems, controller),
-    );
+          },
+          child: _buildGridView(controller),
+        );
       },
     );
   }
@@ -30,11 +31,9 @@ class TemplateGridView extends StatelessWidget {
     Offset position,
     TemplateParserController controller,
   ) async {
-    // 获取渲染对象以正确定位菜单
     final renderBox = context.findRenderObject() as RenderBox;
     final localPosition = renderBox.globalToLocal(position);
 
-    // 显示菜单并等待选择结果
     final result = await showMenu<String>(
       context: context,
       position: RelativeRect.fromLTRB(
@@ -46,7 +45,6 @@ class TemplateGridView extends StatelessWidget {
       items: [const PopupMenuItem<String>(value: 'export', child: Text('导出(csv)'))],
     );
 
-    // 处理菜单选择结果
     if (result == 'export' && context.mounted) {
       try {
         await _exportToCsv(controller);
@@ -56,29 +54,30 @@ class TemplateGridView extends StatelessWidget {
             context,
           ).showSnackBar(SnackBar(content: Text('导出失败: ${e.toString()}')));
         }
-  }
+      }
     }
   }
 
   Future<void> _exportToCsv(TemplateParserController controller) async {
-    String csvData = '序号\t';
     final selectedNodes = controller.getSelectedNodes();
-    for (var node in selectedNodes) {
-      csvData += '${node.name}\t';
-    }
+    if (selectedNodes.isEmpty) return;
+
+    // 构建表头
+    String csvData = '序号\t';
+    csvData += selectedNodes.map((node) => node.name).join('\t');
     csvData += '\n';
 
-    final filteredItems =
-        controller.selectedNode != null
-            ? controller.templateItems.where((item) => item.matchesPath(controller.selectedNode!.path)).toList()
-            : controller.templateItems;
+    // 获取所有行数据
+    final rows = _getGroupedData(controller);
 
-    for (var item in filteredItems) {
-      csvData += '${filteredItems.indexOf(item) + 1}\t';
-      for (var node in selectedNodes) {
-        // 这里需要根据实际情况填充列内容
-        csvData += '\t';
-    }
+    // 填充数据
+    for (var i = 0; i < rows.length; i++) {
+      csvData += '${i + 1}\t';
+      csvData += selectedNodes
+          .map((node) {
+            return rows[i][node.path] ?? '';
+          })
+          .join('\t');
       csvData += '\n';
     }
 
@@ -90,50 +89,49 @@ class TemplateGridView extends StatelessWidget {
     );
 
     if (filePath != null) {
-      final file = File(filePath);
-      await file.writeAsString(csvData);
+      await File(filePath).writeAsString(csvData);
     }
   }
 
-  Widget _buildGridView(List<TemplateItem> items, TemplateParserController controller) {
-    final filteredItems =
-        controller.selectedNode != null
-            ? items.where((item) => item.matchesPath(controller.selectedNode!.path)).toList()
-            : items;
-
+  Widget _buildGridView(TemplateParserController controller) {
     final selectedNodes = controller.getSelectedNodes();
 
-    final dataSource = _TemplateItemDataSource(
-      items: filteredItems,
-      selectedNodes: selectedNodes,
-    );
+    if (selectedNodes.isEmpty) {
+      return const Center(child: Text('请在左侧树中选择要显示的节点（勾选复选框）'));
+    }
 
-    List<GridColumn> columns = [
-        GridColumn(
-          columnName: 'index',
-          width: 60,
-          label: Container(
-            padding: const EdgeInsets.all(8.0),
-            color: Colors.grey[200],
-            alignment: Alignment.center,
-            child: const Text('序号'),
-          ),
-        ),
-    ];
+    // 获取所有需要显示的数据项
+    final allItems = controller.templateItems;
+
+    // 构建数据行 - 每个父节点实例为一行
+    final rows = _buildDataRows(selectedNodes, allItems);
+
+    final dataSource = _TemplateItemDataSource(rows: rows, selectedNodes: selectedNodes);
 
-    for (var node in selectedNodes) {
-      columns.add(
-        GridColumn(
-          columnName: node.id.toString(),
+    // 构建列
+    final columns = <GridColumn>[
+      GridColumn(
+        columnName: 'index',
+        width: 60,
+        label: Container(
+          padding: const EdgeInsets.all(8.0),
+          color: Colors.grey[200],
+          alignment: Alignment.center,
+          child: const Text('序号'),
+        ),
+      ),
+      ...selectedNodes.map((node) {
+        return GridColumn(
+          columnName: node.path,
           label: Container(
             padding: const EdgeInsets.all(8.0),
             alignment: Alignment.center,
             color: Colors.grey[200],
-            child: Text(node.name),
+            child: Text(node.isAttribute ? node.name.substring(1) : node.name),
           ),
-        ),
-      );
-    }
+        );
+      }).toList(),
+    ];
 
     return SfDataGrid(
       source: dataSource,
@@ -143,28 +141,148 @@ class TemplateGridView extends StatelessWidget {
       columnWidthMode: ColumnWidthMode.fill,
     );
   }
+
+  List<Map<String, dynamic>> _buildDataRows(
+    List<TemplateNode> selectedNodes,
+    List<TemplateItem> allItems,
+  ) {
+    // 1. 为每个选中的节点路径收集所有匹配项，并记录它们的原始顺序
+    final nodeValueGroups = <String, List<MapEntry<int, String>>>{};
+
+    for (final node in selectedNodes) {
+      // 获取该节点路径对应的所有值，并保留它们的原始索引
+      final valuesWithIndex =
+          allItems
+              .asMap()
+              .entries
+              .where((entry) => entry.value.xPath == node.path)
+              .map((entry) => MapEntry(entry.key, entry.value.value))
+              .toList();
+
+      nodeValueGroups[node.path] = valuesWithIndex;
+    }
+
+    // 2. 确定最大行数（以最多数据的列为准）
+    final maxRows = nodeValueGroups.values.fold(
+      0,
+      (max, group) => group.length > max ? group.length : max,
+    );
+
+    // 3. 构建结果行列表
+    final rows = <Map<String, dynamic>>[];
+
+    for (var rowIndex = 0; rowIndex < maxRows; rowIndex++) {
+      final row = <String, dynamic>{'_index': rowIndex + 1};
+
+      // 为每个选中的节点添加当前行的值
+      for (final node in selectedNodes) {
+        final values = nodeValueGroups[node.path]!;
+        row[node.path] = rowIndex < values.length ? values[rowIndex].value : '';
+      }
+
+      rows.add(row);
+    }
+
+    return rows;
+  }
+
+  List<String> _getInstancesForParent(String parentPath, List<TemplateItem> items) {
+    // 获取该父路径下的所有唯一实例路径
+    return items
+        .where((item) => item.xPath.startsWith(parentPath))
+        .map((item) {
+          // 对于重复节点，提取实例标识部分
+          if (parentPath.contains('[')) {
+            return item.xPath.substring(0, item.xPath.indexOf('/', parentPath.length));
+          }
+          return parentPath;
+        })
+        .toSet()
+        .toList();
+  }
+
+  // 辅助方法：根据父路径分组数据
+  List<Map<String, String>> _getGroupedData(TemplateParserController controller) {
+    final selectedNodes = controller.getSelectedNodes();
+    if (selectedNodes.isEmpty) return [];
+
+    // 获取所有相关数据项
+    final allItems =
+        controller.templateItems.where((item) {
+          return selectedNodes.any((node) => item.xPath == node.path);
+        }).toList();
+
+    // 按父路径分组
+    final parentPaths =
+        selectedNodes.map((node) {
+          return node.path.substring(0, node.path.lastIndexOf('/'));
+        }).toSet();
+
+    final groupedData = <Map<String, String>>[];
+
+    for (final parentPath in parentPaths) {
+      // 获取该父路径下的所有项
+      final items =
+          allItems.where((item) {
+            return item.xPath.startsWith(parentPath) ||
+                item.xPath == parentPath ||
+                (item.xPath.contains('@') &&
+                    item.xPath.substring(0, item.xPath.lastIndexOf('@')) == parentPath);
+          }).toList();
+
+      // 按实例分组（对于重复节点）
+      final instanceGroups = <String, Map<String, String>>{};
+
+      for (final item in items) {
+        // 提取实例标识（如对于重复节点）
+        final instanceId = _getInstanceId(item.xPath, parentPath);
+
+        if (!instanceGroups.containsKey(instanceId)) {
+          instanceGroups[instanceId] = {'_parent': parentPath};
+        }
+
+        instanceGroups[instanceId]![item.xPath] = item.value;
+      }
+
+      groupedData.addAll(instanceGroups.values);
+    }
+
+    return groupedData;
+  }
+
+  String _getInstanceId(String fullPath, String parentPath) {
+    // 简单实现：使用父路径后的部分作为实例ID
+    return fullPath.substring(parentPath.length);
+  }
 }
 
 class _TemplateItemDataSource extends DataGridSource {
-  final List<TemplateItem> items;
+  final List<Map<String, dynamic>> _rows;
   final List<TemplateNode> selectedNodes;
 
-  _TemplateItemDataSource({required this.items, required this.selectedNodes});
+  _TemplateItemDataSource({required List<Map<String, dynamic>> rows, required this.selectedNodes})
+    : _rows = rows;
 
   @override
-  List<DataGridRow> get rows =>
-      items.map((item) {
-        List<DataGridCell> cells = [
-            DataGridCell<int>(columnName: 'index', value: items.indexOf(item) + 1),
-        ];
-
-        for (var node in selectedNodes) {
-          // 这里需要根据实际情况填充列内容
-          cells.add(DataGridCell<String>(columnName: node.id.toString(), value: ''));
-        }
+  List<DataGridRow> get rows {
+    // print("[DEBUG] 原始可加载记录数:${_rows.length}");
+    return _rows.asMap().entries.map((entry) {
+      final index = entry.key;
+      final rowData = entry.value;
 
-        return DataGridRow(cells: cells);
-      }).toList();
+      return DataGridRow(
+        cells: [
+          DataGridCell<int>(columnName: 'index', value: index + 1),
+          ...selectedNodes.map((node) {
+            return DataGridCell<String>(
+              columnName: node.path,
+              value: rowData[node.path]?.toString() ?? '',
+            );
+          }).toList(),
+        ],
+      );
+    }).toList();
+  }
 
   @override
   DataGridRowAdapter? buildRow(DataGridRow row) {