document.dart
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/*
* Copyright (C) 2017, David PHAM-VAN <dev.nfet.net@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import 'dart:typed_data';
import 'package:pdf/pdf.dart';
import 'page.dart';
import 'theme.dart';
class Document {
Document({
PdfPageMode pageMode = PdfPageMode.none,
DeflateCallback deflate,
bool compress = true,
this.theme,
String title,
String author,
String creator,
String subject,
String keywords,
String producer,
}) : document = PdfDocument(
pageMode: pageMode,
deflate: deflate,
compress: compress,
) {
if (title != null ||
author != null ||
creator != null ||
subject != null ||
keywords != null ||
producer != null) {
document.info = PdfInfo(
document,
title: title,
author: author,
creator: creator,
subject: subject,
keywords: keywords,
producer: producer,
);
}
}
Document.load(
PdfDocumentParserBase parser, {
PdfPageMode pageMode = PdfPageMode.none,
DeflateCallback deflate,
bool compress = true,
this.theme,
String title,
String author,
String creator,
String subject,
String keywords,
String producer,
}) : document = PdfDocument.load(
parser,
pageMode: pageMode,
deflate: deflate,
compress: compress,
) {
if (title != null ||
author != null ||
creator != null ||
subject != null ||
keywords != null ||
producer != null) {
document.info = PdfInfo(
document,
title: title,
author: author,
creator: creator,
subject: subject,
keywords: keywords,
producer: producer,
);
}
}
static bool debug = false;
final PdfDocument document;
final ThemeData theme;
final List<Page> _pages = <Page>[];
bool _paint = false;
void addPage(Page page, {int index}) {
page.generate(this, index: index);
_pages.add(page);
}
void editPage(int index, Page page) {
page.generate(this, index: index, insert: false);
_pages.add(page);
}
Uint8List save() {
if (!_paint) {
for (var page in _pages) {
page.postProcess(this);
}
_paint = true;
}
return document.save();
}
}