feat(report): accomplishment report PDF + shared PDF helpers

- lib/utils/pdf/pdf_letterhead.dart: PdfBrand with load(), letterhead(), theme(), and pageFooter() shared across CRMC PDF documents - lib/widgets/pdf_preview_dialog.dart: showPdfPreviewDialog() with pdfrx PdfViewer.data preview, Print (Printing.layoutPdf) and Download (Printing.sharePdf) buttons - lib/screens/programmer_tasks/report/accomplishment_report_pdf.dart: buildAccomplishmentReportPdf() — A4 MultiPage with letterhead, info box, accomplishment table, footnote, summary, signatures, page footer - test/accomplishment_report_pdf_test.dart: 2 passing tests Co-Authored-By: claude-flow <ruv@ruv.net>
2026-09-28 18:55:45 +08:00
parent 87014d1656
commit 167e208ffa
4 changed files with 579 additions and 0 deletions
@@ -0,0 +1,81 @@
+import 'package:flutter/services.dart' show rootBundle;
+import 'package:pdf/pdf.dart' as pdf;
+import 'package:pdf/widgets.dart' as pw;
+
+/// Shared brand assets and letterhead widget for CRMC PDF documents.
+class PdfBrand {
+  final pw.Font regular;
+  final pw.Font bold;
+  final pw.ImageProvider logo;
+
+  const PdfBrand({
+    required this.regular,
+    required this.bold,
+    required this.logo,
+  });
+
+  /// Load fonts and logo from the Flutter asset bundle.
+  static Future<PdfBrand> load() async {
+    final logoData = await rootBundle.load('assets/crmc_logo.png');
+    final logo = pw.MemoryImage(logoData.buffer.asUint8List());
+
+    final regular = pw.Font.ttf(
+      await rootBundle.load('assets/fonts/Roboto-Regular.ttf'),
+    );
+    final bold = pw.Font.ttf(
+      await rootBundle.load('assets/fonts/Roboto-Bold.ttf'),
+    );
+
+    return PdfBrand(regular: regular, bold: bold, logo: logo);
+  }
+
+  /// Standard CRMC letterhead: 60×60 logo + four-line organisation text.
+  pw.Widget letterhead() {
+    return pw.Row(
+      mainAxisAlignment: pw.MainAxisAlignment.center,
+      crossAxisAlignment: pw.CrossAxisAlignment.center,
+      children: [
+        pw.Image(logo, width: 60, height: 60),
+        pw.SizedBox(width: 16),
+        pw.Column(
+          crossAxisAlignment: pw.CrossAxisAlignment.center,
+          children: [
+            pw.Text(
+              'Republic of the Philippines',
+              style: pw.TextStyle(font: regular, fontSize: 9),
+            ),
+            pw.Text(
+              'Department of Health',
+              style: pw.TextStyle(font: regular, fontSize: 9),
+            ),
+            pw.Text(
+              'Cotabato Regional and Medical Center',
+              style: pw.TextStyle(font: regular, fontSize: 9),
+            ),
+            pw.SizedBox(height: 3),
+            pw.Text(
+              'Integrated Hospital Operations and Management Program (IHOMP)',
+              style: pw.TextStyle(font: bold, fontSize: 9),
+            ),
+          ],
+        ),
+      ],
+    );
+  }
+
+  /// Convenience: create a ThemeData from these fonts.
+  pw.ThemeData theme() => pw.ThemeData.withFont(base: regular, bold: bold);
+
+  /// Footer widget: right-aligned "Page x of y".
+  pw.Widget pageFooter(pw.Context ctx) => pw.Align(
+        alignment: pw.Alignment.centerRight,
+        child: pw.Text(
+          'Page ${ctx.pageNumber} of ${ctx.pagesCount}',
+          style: pw.TextStyle(
+            font: regular,
+            fontSize: 8,
+            color: pdf.PdfColors.grey600,
+          ),
+        ),
+      );
+}