chore: release client-v1.0.82

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-26 01:52:04 +08:00
parent 3d83f94f24
commit 5187702fc5
9 changed files with 305 additions and 16 deletions
@@ -0,0 +1,258 @@
+import 'dart:typed_data';
+import 'package:flutter/foundation.dart' show kIsWeb;
+import 'package:flutter/material.dart';
+import 'package:printing/printing.dart';
+import '../core/errors/error_reporter.dart';
+import '../core/theme/app_theme.dart';
+import '../core/responsive/responsive.dart';
+import '../core/utils/print_util.dart';
+import '../models/stock_in.dart';
+import '../models/stock_out.dart';
+
+/// 单据打印预览弹窗：把待打印的 A4 PDF 光栅化成图片（所见即所得）逐页展示，
+/// 页内点「打印」再调系统打印。解决部分 Windows 系统打印对话框无预览的问题。
+///
+/// 仅桌面端使用；Web 端走浏览器自带的打印预览（见 [showStockInOrderPrint]）。
+class OrderPrintPreviewDialog extends StatefulWidget {
+  /// 标题，如「入库单打印预览」。
+  final String title;
+
+  /// 系统打印任务名（也作另存默认文件名前缀）。
+  final String printName;
+
+  /// 惰性生成 PDF 字节。
+  final Future<Uint8List> Function() pdfBuilder;
+
+  const OrderPrintPreviewDialog({
+    super.key,
+    required this.title,
+    required this.printName,
+    required this.pdfBuilder,
+  });
+
+  @override
+  State<OrderPrintPreviewDialog> createState() =>
+      _OrderPrintPreviewDialogState();
+}
+
+class _OrderPrintPreviewDialogState extends State<OrderPrintPreviewDialog> {
+  Uint8List? _pdfBytes;
+  final List<Uint8List> _pages = [];
+  bool _rendering = true;
+  bool _printing = false;
+  String _error = '';
+
+  @override
+  void initState() {
+    super.initState();
+    _render();
+  }
+
+  Future<void> _render() async {
+    try {
+      final bytes = await widget.pdfBuilder();
+      if (!mounted) return;
+      setState(() => _pdfBytes = bytes);
+      // 逐页光栅化（progressive），DPI 取 110 兼顾清晰与速度。
+      await for (final raster in Printing.raster(bytes, dpi: 110)) {
+        final png = await raster.toPng();
+        if (!mounted) return;
+        setState(() => _pages.add(png));
+      }
+    } catch (e, st) {
+      reportError(e, st);
+      if (mounted) setState(() => _error = '预览生成失败：$e');
+    } finally {
+      if (mounted) setState(() => _rendering = false);
+    }
+  }
+
+  Future<void> _doPrint() async {
+    final bytes = _pdfBytes;
+    if (bytes == null || _printing) return;
+    setState(() => _printing = true);
+    try {
+      await Printing.layoutPdf(
+        name: '${widget.printName}_${_ts()}',
+        dynamicLayout: false,
+        onLayout: (_) async => bytes,
+      );
+      if (mounted) Navigator.of(context).pop();
+    } catch (e, st) {
+      reportError(e, st);
+      if (mounted) {
+        setState(() {
+          _printing = false;
+          _error = '打印失败，请检查打印机连接和驱动是否正常。\n详情：$e';
+        });
+      }
+    }
+  }
+
+  String _ts() {
+    final n = DateTime.now();
+    String p(int v) => v.toString().padLeft(2, '0');
+    return '${n.year}${p(n.month)}${p(n.day)}_${p(n.hour)}${p(n.minute)}${p(n.second)}';
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Dialog(
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+      child: Container(
+        width: context.dialogWidth(720),
+        constraints: const BoxConstraints(maxHeight: 720),
+        child: Column(
+          children: [
+            // ── 顶栏 ──────────────────────────────────────────────────────────
+            Container(
+              padding:
+                  const EdgeInsets.symmetric(horizontal: 20, vertical: 14),
+              decoration: const BoxDecoration(
+                color: AppTheme.primary,
+                borderRadius: BorderRadius.only(
+                  topLeft: Radius.circular(12),
+                  topRight: Radius.circular(12),
+                ),
+              ),
+              child: Row(
+                children: [
+                  Text(widget.title,
+                      style: const TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.w600,
+                          color: Colors.white)),
+                  const Spacer(),
+                  IconButton(
+                    icon: const Icon(Icons.close, color: Colors.white),
+                    onPressed:
+                        _printing ? null : () => Navigator.of(context).pop(),
+                    padding: EdgeInsets.zero,
+                    constraints: const BoxConstraints(),
+                  ),
+                ],
+              ),
+            ),
+
+            // ── 预览区 ─────────────────────────────────────────────────────────
+            Expanded(
+              child: Container(
+                width: double.infinity,
+                color: const Color(0xFFE9ECF1),
+                child: _buildBody(),
+              ),
+            ),
+
+            // ── 底栏 ──────────────────────────────────────────────────────────
+            Padding(
+              padding: const EdgeInsets.fromLTRB(16, 10, 16, 14),
+              child: Row(
+                children: [
+                  Expanded(
+                    child: Text(
+                      _error.isNotEmpty
+                          ? _error
+                          : (_rendering
+                              ? '正在生成预览…'
+                              : '共 ${_pages.length} 页'),
+                      style: TextStyle(
+                          fontSize: 12,
+                          color: _error.isNotEmpty
+                              ? Colors.red
+                              : AppTheme.textSecondary),
+                    ),
+                  ),
+                  TextButton(
+                    onPressed:
+                        _printing ? null : () => Navigator.of(context).pop(),
+                    child: const Text('取消'),
+                  ),
+                  const SizedBox(width: 8),
+                  FilledButton.icon(
+                    icon: const Icon(Icons.print, size: 18),
+                    onPressed: (_pdfBytes == null || _printing)
+                        ? null
+                        : _doPrint,
+                    label: Text(_printing ? '打印中…' : '打印'),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildBody() {
+    if (_pages.isEmpty) {
+      if (_error.isNotEmpty) {
+        return Center(
+          child: Padding(
+            padding: const EdgeInsets.all(24),
+            child: Text(_error,
+                textAlign: TextAlign.center,
+                style: const TextStyle(color: Colors.red, fontSize: 13)),
+          ),
+        );
+      }
+      return const Center(child: CircularProgressIndicator());
+    }
+    return ListView.separated(
+      padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
+      itemCount: _pages.length,
+      separatorBuilder: (_, __) => const SizedBox(height: 16),
+      itemBuilder: (_, i) => Center(
+        child: Container(
+          decoration: BoxDecoration(
+            color: Colors.white,
+            boxShadow: [
+              BoxShadow(
+                color: Colors.black.withOpacity(0.18),
+                blurRadius: 8,
+                offset: const Offset(0, 2),
+              ),
+            ],
+          ),
+          child: Image.memory(_pages[i], fit: BoxFit.contain),
+        ),
+      ),
+    );
+  }
+}
+
+/// 打印入库单：桌面端先弹应用内预览，Web 端走浏览器自带打印预览。
+Future<void> showStockInOrderPrint(
+    BuildContext context, StockInOrder order) async {
+  if (kIsWeb) {
+    await safePrint(context, () => printStockInOrder(order));
+    return;
+  }
+  await showDialog<void>(
+    context: context,
+    barrierDismissible: false,
+    builder: (_) => OrderPrintPreviewDialog(
+      title: '入库单打印预览',
+      printName: '入库单',
+      pdfBuilder: () => buildStockInOrderPdf(order),
+    ),
+  );
+}
+
+/// 打印出库单：桌面端先弹应用内预览，Web 端走浏览器自带打印预览。
+Future<void> showStockOutOrderPrint(
+    BuildContext context, StockOutOrder order) async {
+  if (kIsWeb) {
+    await safePrint(context, () => printStockOutOrder(order));
+    return;
+  }
+  await showDialog<void>(
+    context: context,
+    barrierDismissible: false,
+    builder: (_) => OrderPrintPreviewDialog(
+      title: '出库单打印预览',
+      printName: '出库单',
+      pdfBuilder: () => buildStockOutOrderPdf(order),
+    ),
+  );
+}