f93417dc3c
Enforce an optional TLP release ceiling at the single export chokepoint so no format (PDF/PPTX/HTML) can bypass it. Classifying a deck stays optional; the gate only blocks decks classified above the configured ceiling, and is off by default. - ClassificationPolicy + ExportDecision: pure, tested decision logic (release ceiling, fail-closed; null = no gate). - ExportService.export() evaluates the policy first and refuses without building or writing anything when blocked. - Persist the ceiling as maxReleaseExportTlpKey in app settings/prefs (default off) with a setter on SettingsNotifier. - Export dialog runs the same check up front and explains a blocked export before any work starts; app shell builds the policy from settings. - Tests: classification_policy_test plus export_service chokepoint tests asserting a blocked export fails and writes no file. - Docs: CHANGELOG, README, USER_GUIDE, ARCHITECTURE, SECURITY. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
590 lines
25 KiB
Dart
590 lines
25 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'dart:typed_data';
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import 'package:archive/archive.dart';
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import 'package:image/image.dart' as img;
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import 'package:path/path.dart' as p;
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import 'package:pdf/pdf.dart';
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import 'package:pdf/widgets.dart' as pw;
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import '../models/deck.dart';
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import '../models/settings.dart';
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import 'classification_policy.dart';
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import 'marp_html_service.dart';
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enum ExportFormat { pdf, pptx, html }
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extension ExportFormatExtension on ExportFormat {
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String get label {
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switch (this) {
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case ExportFormat.pdf:
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return 'PDF';
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case ExportFormat.pptx:
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return 'PowerPoint (PPTX)';
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case ExportFormat.html:
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return 'HTML (Marp, self-contained)';
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}
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}
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String get extension {
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switch (this) {
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case ExportFormat.pdf:
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return '.pdf';
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case ExportFormat.pptx:
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return '.pptx';
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case ExportFormat.html:
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return '.html';
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}
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}
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}
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class ExportResult {
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final bool success;
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final String? outputPath;
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final String? error;
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const ExportResult._({required this.success, this.outputPath, this.error});
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factory ExportResult.ok(String path) =>
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ExportResult._(success: true, outputPath: path);
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factory ExportResult.fail(String error) =>
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ExportResult._(success: false, error: error);
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}
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/// Builds PDF and PPTX files from pre-rendered slide images (WYSIWYG export).
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/// Slides are expected to be 16:9 PNG bytes (see [SlideRasterizer]).
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class ExportService {
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/// Renders the self-contained Marp HTML export. Injectable for testing.
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final MarpHtmlService _html;
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ExportService({MarpHtmlService? htmlService})
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: _html = htmlService ?? MarpHtmlService();
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// 16:9 widescreen slide size in EMU (English Metric Units): 13.333" x 7.5".
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static const int _slideWidthEmu = 12192000;
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static const int _slideHeightEmu = 6858000;
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/// JPEG quality (0–100) used when a PDF is exported in compressed mode.
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/// Low enough to shrink photo-heavy decks dramatically while keeping slides
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/// legible.
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static const int _compressedJpegQuality = 60;
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/// Slides are downscaled to this width (px) in compressed mode. The compressed
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/// PDF is meant as a screen handout, so 720p is plenty and shrinks the file
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/// further on top of JPEG encoding. Wider slides are never upscaled.
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static const int _compressedMaxWidth = 1280;
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/// Timestamp for [time] in UTC, formatted `YYYYMMDDHHMMSS` —
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/// e.g. `20260603124547`. Used as a filename prefix so exports sort
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/// chronologically and never overwrite each other.
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static String natoDtg(DateTime time) {
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final t = time.toUtc();
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String two(int n) => n.toString().padLeft(2, '0');
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return '${t.year.toString().padLeft(4, '0')}${two(t.month)}${two(t.day)}'
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'${two(t.hour)}${two(t.minute)}${two(t.second)}';
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}
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/// Write [images] to a file named after [deckPath] in the requested [format].
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///
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/// The file name is prefixed with a UTC timestamp (see [natoDtg]),
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/// e.g. `20260603124547 deck.pdf`.
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///
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/// The file is written to [outputDirectory] when given (created if missing);
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/// otherwise it lands next to the source deck (legacy behaviour).
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///
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/// When [compress] is set (PDF only), each slide is re-encoded as JPEG instead
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/// of being embedded as lossless PNG, and `-compact` is appended to the file
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/// name so it never overwrites a full-quality export.
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Future<ExportResult> export(
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String deckPath,
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ExportFormat format,
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List<Uint8List> images, {
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bool compress = false,
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String? outputDirectory,
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List<String>? notes,
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String? markdown,
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ThemeProfile? themeProfile,
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TlpLevel tlp = TlpLevel.none,
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ClassificationPolicy policy = const ClassificationPolicy(),
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}) async {
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// Classificatie-gate. Dit is het enige chokepoint waar elk formaat
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// (PDF/PPTX/HTML) doorheen moet, dus de handhaving zit hier en niet in de
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// UI-laag: zo kan geen exportpad de gate omzeilen. Fail-closed — bij een
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// weigering wordt er niets gebouwd of weggeschreven.
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final decision = policy.evaluate(tlp);
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if (!decision.allowed) {
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return ExportResult.fail(decision.reason!);
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}
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if (format == ExportFormat.html) {
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if (markdown == null || markdown.trim().isEmpty) {
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return ExportResult.fail('Geen inhoud om te exporteren.');
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}
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} else if (images.isEmpty) {
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return ExportResult.fail('Geen slides om te exporteren.');
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}
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final compactSuffix = compress && format == ExportFormat.pdf
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? '-compact'
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: '';
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final dir = (outputDirectory != null && outputDirectory.isNotEmpty)
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? outputDirectory
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: p.dirname(deckPath);
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final prefix = '${natoDtg(DateTime.now())} ';
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final fileName =
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'$prefix${p.basenameWithoutExtension(deckPath)}$compactSuffix${format.extension}';
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final outputPath = p.join(dir, fileName);
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try {
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await Directory(dir).create(recursive: true);
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final Uint8List bytes;
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switch (format) {
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case ExportFormat.pdf:
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bytes = await _buildPdf(images, compress: compress);
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case ExportFormat.pptx:
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bytes = _buildPptx(images, notes: notes);
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case ExportFormat.html:
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bytes = Uint8List.fromList(
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utf8.encode(await _html.build(markdown!, theme: themeProfile)),
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);
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}
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await File(outputPath).writeAsBytes(bytes, flush: true);
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return ExportResult.ok(outputPath);
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} catch (e) {
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return ExportResult.fail('Export fout: $e');
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}
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}
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// ── PDF ───────────────────────────────────────────────────────────────────
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Future<Uint8List> _buildPdf(
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List<Uint8List> images, {
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bool compress = false,
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}) async {
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final doc = pw.Document();
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// Page size in points; only the ratio matters for a full-bleed image.
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const format = PdfPageFormat(1280, 720, marginAll: 0);
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for (final png in images) {
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// MemoryImage auto-detects PNG vs JPEG from the byte header, so a
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// compressed (JPEG) slide embeds just like the lossless one.
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final image = pw.MemoryImage(compress ? _toJpeg(png) : png);
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doc.addPage(
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pw.Page(
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pageFormat: format,
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build: (_) => pw.Image(image, fit: pw.BoxFit.fill),
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),
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);
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}
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return doc.save();
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}
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/// Downscale a rendered slide PNG to [_compressedMaxWidth] and re-encode it as
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/// JPEG at [_compressedJpegQuality]. Slides are full-bleed (no transparency),
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/// so dropping the alpha channel is safe.
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Uint8List _toJpeg(Uint8List png) {
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final decoded = img.decodePng(png);
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if (decoded == null) return png; // Unexpected; keep the original bytes.
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final resized = decoded.width > _compressedMaxWidth
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? img.copyResize(
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decoded,
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width: _compressedMaxWidth,
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interpolation: img.Interpolation.average,
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)
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: decoded;
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return img.encodeJpg(resized, quality: _compressedJpegQuality);
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}
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// ── PPTX (Office Open XML) ─────────────────────────────────────────────────
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Uint8List _buildPptx(List<Uint8List> images, {List<String>? notes}) {
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final archive = Archive();
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void addText(String name, String content) {
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final data = utf8Bytes(content);
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archive.add(ArchiveFile(name, data.length, data));
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}
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final slideCount = images.length;
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// Which slides carry speaker notes. When none do, the whole notes machinery
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// (notesMaster + notesSlides) is omitted to keep the file minimal.
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final noteFor = <int, String>{
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for (var i = 0; i < slideCount; i++)
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if (notes != null && i < notes.length && notes[i].trim().isNotEmpty)
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i: notes[i].trim(),
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};
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final hasNotes = noteFor.isNotEmpty;
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addText('[Content_Types].xml', _contentTypes(slideCount, noteFor.keys));
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addText('_rels/.rels', _rootRels());
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addText('ppt/presentation.xml', _presentationXml(slideCount, hasNotes));
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addText(
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'ppt/_rels/presentation.xml.rels',
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_presentationRels(slideCount, hasNotes),
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);
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addText('ppt/presProps.xml', _presProps());
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addText('ppt/theme/theme1.xml', _theme1());
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addText('ppt/slideMasters/slideMaster1.xml', _slideMaster());
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addText('ppt/slideMasters/_rels/slideMaster1.xml.rels', _slideMasterRels());
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addText('ppt/slideLayouts/slideLayout1.xml', _slideLayout());
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addText('ppt/slideLayouts/_rels/slideLayout1.xml.rels', _slideLayoutRels());
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if (hasNotes) {
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addText('ppt/notesMasters/notesMaster1.xml', _notesMaster());
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addText(
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'ppt/notesMasters/_rels/notesMaster1.xml.rels',
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_notesMasterRels(),
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);
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}
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for (var i = 0; i < slideCount; i++) {
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final n = i + 1;
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final hasNote = noteFor.containsKey(i);
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addText('ppt/slides/slide$n.xml', _slideXml());
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addText('ppt/slides/_rels/slide$n.xml.rels', _slideRels(n, hasNote));
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if (hasNote) {
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addText(
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'ppt/notesSlides/notesSlide$n.xml',
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_notesSlideXml(noteFor[i]!),
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);
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addText(
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'ppt/notesSlides/_rels/notesSlide$n.xml.rels',
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_notesSlideRels(n),
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);
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}
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final png = images[i];
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archive.add(ArchiveFile('ppt/media/image$n.png', png.length, png));
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}
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return ZipEncoder().encodeBytes(archive);
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}
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/// XML-escape free text destined for an `<a:t>` run.
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static String _xmlEscape(String s) {
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return s
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.replaceAll('&', '&')
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.replaceAll('<', '<')
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.replaceAll('>', '>');
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}
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/// A notesSlide whose body placeholder carries the speaker notes. Newlines in
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/// [note] become separate paragraphs.
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String _notesSlideXml(String note) {
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final paras = StringBuffer();
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for (final line in note.split('\n')) {
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paras.write('<a:p><a:r><a:t>${_xmlEscape(line)}</a:t></a:r></a:p>');
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}
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return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
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'<p:notes xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" '
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'xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" '
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'xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main">'
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'<p:cSld><p:spTree>'
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'<p:nvGrpSpPr><p:cNvPr id="1" name=""/><p:cNvGrpSpPr/><p:nvPr/></p:nvGrpSpPr>'
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'<p:grpSpPr><a:xfrm><a:off x="0" y="0"/><a:ext cx="0" cy="0"/>'
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'<a:chOff x="0" y="0"/><a:chExt cx="0" cy="0"/></a:xfrm></p:grpSpPr>'
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'<p:sp>'
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'<p:nvSpPr><p:cNvPr id="2" name="Notes Placeholder"/>'
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'<p:cNvSpPr><a:spLocks noGrp="1"/></p:cNvSpPr>'
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'<p:nvPr><p:ph type="body" idx="1"/></p:nvPr></p:nvSpPr>'
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'<p:spPr/>'
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'<p:txBody><a:bodyPr/><a:lstStyle/>$paras</p:txBody>'
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'</p:sp>'
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'</p:spTree></p:cSld>'
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'<p:clrMapOvr><a:masterClrMapping/></p:clrMapOvr>'
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'</p:notes>';
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}
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String _notesSlideRels(int n) {
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return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
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'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
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'<Relationship Id="rId1" '
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'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slide" '
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'Target="../slides/slide$n.xml"/>'
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'<Relationship Id="rId2" '
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'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/notesMaster" '
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'Target="../notesMasters/notesMaster1.xml"/>'
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'</Relationships>';
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}
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String _notesMaster() {
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return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
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'<p:notesMaster xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" '
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'xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" '
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'xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main">'
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'<p:cSld><p:spTree>'
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'<p:nvGrpSpPr><p:cNvPr id="1" name=""/><p:cNvGrpSpPr/><p:nvPr/></p:nvGrpSpPr>'
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'<p:grpSpPr><a:xfrm><a:off x="0" y="0"/><a:ext cx="0" cy="0"/>'
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'<a:chOff x="0" y="0"/><a:chExt cx="0" cy="0"/></a:xfrm></p:grpSpPr>'
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'</p:spTree></p:cSld>'
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'<p:clrMap bg1="lt1" tx1="dk1" bg2="lt2" tx2="dk2" accent1="accent1" '
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'accent2="accent2" accent3="accent3" accent4="accent4" accent5="accent5" '
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'accent6="accent6" hlink="hlink" folHlink="folHlink"/>'
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'</p:notesMaster>';
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}
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String _notesMasterRels() {
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return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
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'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
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'<Relationship Id="rId1" '
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'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme" '
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'Target="../theme/theme1.xml"/>'
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'</Relationships>';
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}
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static List<int> utf8Bytes(String s) => utf8.encode(s);
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String _contentTypes(int count, Iterable<int> noteIndices) {
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final overrides = StringBuffer();
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for (var i = 1; i <= count; i++) {
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overrides.write(
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'<Override PartName="/ppt/slides/slide$i.xml" '
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'ContentType="application/vnd.openxmlformats-officedocument.presentationml.slide+xml"/>',
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);
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}
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final notes = noteIndices.toList();
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if (notes.isNotEmpty) {
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overrides.write(
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'<Override PartName="/ppt/notesMasters/notesMaster1.xml" '
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'ContentType="application/vnd.openxmlformats-officedocument.presentationml.notesMaster+xml"/>',
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);
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for (final i in notes) {
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overrides.write(
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'<Override PartName="/ppt/notesSlides/notesSlide${i + 1}.xml" '
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'ContentType="application/vnd.openxmlformats-officedocument.presentationml.notesSlide+xml"/>',
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);
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}
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}
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return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
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'<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">'
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'<Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>'
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'<Default Extension="xml" ContentType="application/xml"/>'
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'<Default Extension="png" ContentType="image/png"/>'
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'<Override PartName="/ppt/presentation.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.presentation.main+xml"/>'
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'<Override PartName="/ppt/presProps.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.presProps+xml"/>'
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'<Override PartName="/ppt/slideMasters/slideMaster1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideMaster+xml"/>'
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'<Override PartName="/ppt/slideLayouts/slideLayout1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>'
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'<Override PartName="/ppt/theme/theme1.xml" ContentType="application/vnd.openxmlformats-officedocument.theme+xml"/>'
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'$overrides'
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'</Types>';
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}
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String _rootRels() {
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return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
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'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
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'<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="ppt/presentation.xml"/>'
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'</Relationships>';
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}
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String _presentationXml(int count, bool hasNotes) {
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final sldIds = StringBuffer();
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for (var i = 0; i < count; i++) {
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// Slide relationship ids start at rId2 (rId1 = master).
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sldIds.write('<p:sldId id="${256 + i}" r:id="rId${i + 2}"/>');
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}
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// The notesMaster relationship is appended after the slides/presProps/theme
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// rels (see _presentationRels): rId(count+4).
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final notesMasterIdLst = hasNotes
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? '<p:notesMasterIdLst><p:notesMasterId r:id="rId${count + 4}"/></p:notesMasterIdLst>'
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: '';
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return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
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'<p:presentation xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" '
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'xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" '
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'xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main">'
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'<p:sldMasterIdLst><p:sldMasterId id="2147483648" r:id="rId1"/></p:sldMasterIdLst>'
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// Schema order: notesMasterIdLst must precede sldIdLst.
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'$notesMasterIdLst'
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'<p:sldIdLst>$sldIds</p:sldIdLst>'
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'<p:sldSz cx="$_slideWidthEmu" cy="$_slideHeightEmu" type="screen16x9"/>'
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'<p:notesSz cx="6858000" cy="9144000"/>'
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'</p:presentation>';
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}
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String _presentationRels(int count, bool hasNotes) {
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final rels = StringBuffer();
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rels.write(
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'<Relationship Id="rId1" '
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'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideMaster" '
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||
'Target="slideMasters/slideMaster1.xml"/>',
|
||
);
|
||
for (var i = 0; i < count; i++) {
|
||
final n = i + 1;
|
||
rels.write(
|
||
'<Relationship Id="rId${i + 2}" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slide" '
|
||
'Target="slides/slide$n.xml"/>',
|
||
);
|
||
}
|
||
final presPropsId = 'rId${count + 2}';
|
||
final themeId = 'rId${count + 3}';
|
||
rels.write(
|
||
'<Relationship Id="$presPropsId" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/presProps" '
|
||
'Target="presProps.xml"/>',
|
||
);
|
||
rels.write(
|
||
'<Relationship Id="$themeId" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme" '
|
||
'Target="theme/theme1.xml"/>',
|
||
);
|
||
if (hasNotes) {
|
||
// Must match the r:id used by notesMasterIdLst in _presentationXml.
|
||
rels.write(
|
||
'<Relationship Id="rId${count + 4}" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/notesMaster" '
|
||
'Target="notesMasters/notesMaster1.xml"/>',
|
||
);
|
||
}
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
|
||
'$rels'
|
||
'</Relationships>';
|
||
}
|
||
|
||
String _presProps() {
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<p:presentationPr xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" '
|
||
'xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" '
|
||
'xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main"/>';
|
||
}
|
||
|
||
String _slideMaster() {
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<p:sldMaster xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" '
|
||
'xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" '
|
||
'xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main">'
|
||
'<p:cSld>'
|
||
'<p:bg><p:bgRef idx="1001"><a:schemeClr val="bg1"/></p:bgRef></p:bg>'
|
||
'${_emptySpTree()}'
|
||
'</p:cSld>'
|
||
'<p:clrMap bg1="lt1" tx1="dk1" bg2="lt2" tx2="dk2" accent1="accent1" '
|
||
'accent2="accent2" accent3="accent3" accent4="accent4" accent5="accent5" '
|
||
'accent6="accent6" hlink="hlink" folHlink="folHlink"/>'
|
||
'<p:sldLayoutIdLst><p:sldLayoutId id="2147483649" r:id="rId1"/></p:sldLayoutIdLst>'
|
||
'<p:txStyles><p:titleStyle/><p:bodyStyle/><p:otherStyle/></p:txStyles>'
|
||
'</p:sldMaster>';
|
||
}
|
||
|
||
String _slideMasterRels() {
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
|
||
'<Relationship Id="rId1" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideLayout" '
|
||
'Target="../slideLayouts/slideLayout1.xml"/>'
|
||
'<Relationship Id="rId2" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme" '
|
||
'Target="../theme/theme1.xml"/>'
|
||
'</Relationships>';
|
||
}
|
||
|
||
String _slideLayout() {
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<p:sldLayout xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" '
|
||
'xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" '
|
||
'xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main" '
|
||
'type="blank" preserve="1">'
|
||
'<p:cSld name="Leeg">${_emptySpTree()}</p:cSld>'
|
||
'<p:clrMapOvr><a:masterClrMapping/></p:clrMapOvr>'
|
||
'</p:sldLayout>';
|
||
}
|
||
|
||
String _slideLayoutRels() {
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
|
||
'<Relationship Id="rId1" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideMaster" '
|
||
'Target="../slideMasters/slideMaster1.xml"/>'
|
||
'</Relationships>';
|
||
}
|
||
|
||
String _slideXml() {
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<p:sld xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" '
|
||
'xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" '
|
||
'xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main">'
|
||
'<p:cSld><p:spTree>'
|
||
'<p:nvGrpSpPr><p:cNvPr id="1" name=""/><p:cNvGrpSpPr/><p:nvPr/></p:nvGrpSpPr>'
|
||
'<p:grpSpPr><a:xfrm><a:off x="0" y="0"/><a:ext cx="0" cy="0"/>'
|
||
'<a:chOff x="0" y="0"/><a:chExt cx="0" cy="0"/></a:xfrm></p:grpSpPr>'
|
||
'<p:pic>'
|
||
'<p:nvPicPr><p:cNvPr id="2" name="Slide"/>'
|
||
'<p:cNvPicPr><a:picLocks noChangeAspect="1"/></p:cNvPicPr><p:nvPr/></p:nvPicPr>'
|
||
'<p:blipFill><a:blip r:embed="rId2"/><a:stretch><a:fillRect/></a:stretch></p:blipFill>'
|
||
'<p:spPr><a:xfrm><a:off x="0" y="0"/>'
|
||
'<a:ext cx="$_slideWidthEmu" cy="$_slideHeightEmu"/></a:xfrm>'
|
||
'<a:prstGeom prst="rect"><a:avLst/></a:prstGeom></p:spPr>'
|
||
'</p:pic>'
|
||
'</p:spTree></p:cSld>'
|
||
'<p:clrMapOvr><a:masterClrMapping/></p:clrMapOvr>'
|
||
'</p:sld>';
|
||
}
|
||
|
||
String _slideRels(int n, bool hasNote) {
|
||
final notesRel = hasNote
|
||
? '<Relationship Id="rId3" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/notesSlide" '
|
||
'Target="../notesSlides/notesSlide$n.xml"/>'
|
||
: '';
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
|
||
'<Relationship Id="rId1" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideLayout" '
|
||
'Target="../slideLayouts/slideLayout1.xml"/>'
|
||
'<Relationship Id="rId2" '
|
||
'Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/image" '
|
||
'Target="../media/image$n.png"/>'
|
||
'$notesRel'
|
||
'</Relationships>';
|
||
}
|
||
|
||
String _emptySpTree() {
|
||
return '<p:spTree>'
|
||
'<p:nvGrpSpPr><p:cNvPr id="1" name=""/><p:cNvGrpSpPr/><p:nvPr/></p:nvGrpSpPr>'
|
||
'<p:grpSpPr><a:xfrm><a:off x="0" y="0"/><a:ext cx="0" cy="0"/>'
|
||
'<a:chOff x="0" y="0"/><a:chExt cx="0" cy="0"/></a:xfrm></p:grpSpPr>'
|
||
'</p:spTree>';
|
||
}
|
||
|
||
String _theme1() {
|
||
return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
|
||
'<a:theme xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" name="Office">'
|
||
'<a:themeElements>'
|
||
'<a:clrScheme name="Office">'
|
||
'<a:dk1><a:sysClr val="windowText" lastClr="000000"/></a:dk1>'
|
||
'<a:lt1><a:sysClr val="window" lastClr="FFFFFF"/></a:lt1>'
|
||
'<a:dk2><a:srgbClr val="44546A"/></a:dk2>'
|
||
'<a:lt2><a:srgbClr val="E7E6E6"/></a:lt2>'
|
||
'<a:accent1><a:srgbClr val="4472C4"/></a:accent1>'
|
||
'<a:accent2><a:srgbClr val="ED7D31"/></a:accent2>'
|
||
'<a:accent3><a:srgbClr val="A5A5A5"/></a:accent3>'
|
||
'<a:accent4><a:srgbClr val="FFC000"/></a:accent4>'
|
||
'<a:accent5><a:srgbClr val="5B9BD5"/></a:accent5>'
|
||
'<a:accent6><a:srgbClr val="70AD47"/></a:accent6>'
|
||
'<a:hlink><a:srgbClr val="0563C1"/></a:hlink>'
|
||
'<a:folHlink><a:srgbClr val="954F72"/></a:folHlink>'
|
||
'</a:clrScheme>'
|
||
'<a:fontScheme name="Office">'
|
||
'<a:majorFont><a:latin typeface="Calibri Light"/><a:ea typeface=""/><a:cs typeface=""/></a:majorFont>'
|
||
'<a:minorFont><a:latin typeface="Calibri"/><a:ea typeface=""/><a:cs typeface=""/></a:minorFont>'
|
||
'</a:fontScheme>'
|
||
'<a:fmtScheme name="Office">'
|
||
'<a:fillStyleLst>'
|
||
'<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>'
|
||
'<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>'
|
||
'<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>'
|
||
'</a:fillStyleLst>'
|
||
'<a:lnStyleLst>'
|
||
'<a:ln w="6350" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>'
|
||
'<a:ln w="12700" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>'
|
||
'<a:ln w="19050" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>'
|
||
'</a:lnStyleLst>'
|
||
'<a:effectStyleLst>'
|
||
'<a:effectStyle><a:effectLst/></a:effectStyle>'
|
||
'<a:effectStyle><a:effectLst/></a:effectStyle>'
|
||
'<a:effectStyle><a:effectLst/></a:effectStyle>'
|
||
'</a:effectStyleLst>'
|
||
'<a:bgFillStyleLst>'
|
||
'<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>'
|
||
'<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>'
|
||
'<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>'
|
||
'</a:bgFillStyleLst>'
|
||
'</a:fmtScheme>'
|
||
'</a:themeElements>'
|
||
'</a:theme>';
|
||
}
|
||
}
|