Differential D25171 Diff 69423 filters/karbon/pdf/Pdf2OdgImport.cpp

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filters/karbon/pdf/Pdf2OdgImport.cpp

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1​/* This file is part of the KDE project
2​ * Copyright (C) 2008 Jan Hambrecht <jaham@gmx.net>
3​ *
4​ * This library is free software; you can redistribute it and/or
5​ * modify it under the terms of the GNU Library General Public
6​ * License as published by the Free Software Foundation; either
7​ * version 2 of the License, or (at your option) any later version.
8​ *
9​ * This library is distributed in the hope that it will be useful,
10​ * but WITHOUT ANY WARRANTY; without even the implied warranty of
11​ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12​ * Library General Public License for more details.
13​ *
14​ * You should have received a copy of the GNU Library General Public License
15​ * along with this library; see the file COPYING.LIB. If not, write to
16​ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17​ * Boston, MA 02110-1301, USA.
18​ */
19​
20​#include "Pdf2OdgImport.h"
21​
22​#include "PdfImportDebug.h"
23​#include "SvgOutputDev.h"
24​
25​#include <QString>
26​#include <QFile>
27​
28​#include <SvgParser.h>
29​#include <KoShape.h>
30​#include <KoShapeLayer.h>
31​#include <KoShapeGroup.h>
32​#include <KoFilterChain.h>
33​#include <commands/KoShapeUngroupCommand.h>
34​#include <KoXmlReader.h>
35​#include <KoPAPage.h>
36​#include <KoPAMasterPage.h>
37​#include <KoPageLayout.h>
38​
39​#include <KarbonDocument.h>
40​
41​#include <kpluginfactory.h>
42​
43​// Don't show this warning: it's an issue in poppler
44​#ifdef __GNUC__
45​#pragma GCC diagnostic ignored "-Wunused-parameter"
46​#endif
47​
48​// poppler includes
49​#include <PDFDoc.h>
50​#include <GlobalParams.h>
51​
52​K_PLUGIN_FACTORY_WITH_JSON(Pdf2OdgImportFactory, "calligra_filter_pdf2odg.json",
53​ registerPlugin<Pdf2OdgImport>();)
54​
55​Pdf2OdgImport::Pdf2OdgImport(QObject*parent, const QVariantList&)
56​ : KoFilter(parent)
57​{
58​ debugPdf << "PDF Import Filter";
59​}
60​
61​Pdf2OdgImport::~Pdf2OdgImport()
62​{
63​}
64​
65​KoFilter::ConversionStatus Pdf2OdgImport::convert(const QByteArray& from, const QByteArray& to)
66​{
67​ debugPdf << "to:" << to << " from:" << from;
68​
69​ if (from != "application/pdf" || to != "application/vnd.oasis.opendocument.graphics") {
70​ return KoFilter::NotImplemented;
71​ }
72​ debugPdf<<m_chain->inputFile();
73​ m_document = dynamic_cast<KarbonDocument*>(m_chain->outputDocument());
74​ if (!m_document) {
75​ errorPdf<<"No KarbonDocument"<<m_chain->outputDocument();
76​ return KoFilter::CreationError;
77​ }
78​ Q_ASSERT(m_document->pages().isEmpty());
79​
80​ // read config file
81​ globalParams = new GlobalParams();
82​ if (! globalParams)
83​ return KoFilter::NotImplemented;
84​
85​ GooString * fname = new GooString(QFile::encodeName(m_chain->inputFile()).data());
86​ PDFDoc * pdfDoc = new PDFDoc(fname, 0, 0, 0);
87​ if (! pdfDoc) {
88​ delete globalParams;
89​ return KoFilter::StupidError;
90​ }
91​
92​ if (! pdfDoc->isOk()) {
93​ delete globalParams;
94​ delete pdfDoc;
95​ return KoFilter::StupidError;
96​ }
97​
98​ double hDPI = 72.0;
99​ double vDPI = 72.0;
100​
101​ int firstPage = 1;
102​ int lastPage = pdfDoc->getNumPages();
103​
104​ QString tmpPath = QDir::tempPath().append("/karbon");
105​ debugPdf << "converting pages" << firstPage << "-" << lastPage;
106​ KoFilter::ConversionStatus status = KoFilter::OK;
107​ for (int page = firstPage; status == KoFilter::OK && page <= lastPage; ++page) {
108​ QTemporaryFile tmpFile(tmpPath);
109​ if (!tmpFile.open()) {
110​ status = KoFilter::CreationError;
111​ break;
112​ }
113​ tmpFile.close();
114​ debugPdf<<"tmpFile:"<<tmpFile.fileName();
115​ SvgOutputDev * dev = new SvgOutputDev(tmpFile.fileName());
116​ if (dev->isOk()) {
117​ int rotate = 0;
118​ bool useMediaBox = true;
119​ bool crop = false;
120​ bool printing = false;
121​ pdfDoc->displayPage(dev, page, hDPI, vDPI, rotate, useMediaBox, crop, printing);
122​ dev->dumpContent();
123​ status = convert(page, tmpFile);
124​ }
125​ delete dev;
126​ }
127​ delete pdfDoc;
128​ delete globalParams;
129​ globalParams = 0;
130​ return status;
131​}
anthonyfieroniUnsubmitted
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anthonyfieroni: Remove that line
132​
133​KoFilter::ConversionStatus Pdf2OdgImport::convert(int pageNumber, QFile &in)
134​{
135​ debugPdf<<"converting page:"<<pageNumber<<in.fileName();
136​ int line, col;
137​ QString errormessage;
138​
139​ KoXmlDocument inputDoc;
140​
141​ const bool parsed = inputDoc.setContent(&in, &errormessage, &line, &col);
142​
143​ in.close();
144​
145​ if (! parsed) {
146​ errorPdf << "Error while parsing file: "
147​ << "at line " << line << " column: " << col
148​ << " message: " << errormessage << endl;
149​ // ### TODO: feedback to the user
150​ return KoFilter::ParsingError;
151​ }
152​
153​ if (m_document->pages().count() < pageNumber) {
154​ debugPdf<<"add page"<<pageNumber;
155​ KoPAMasterPage *mp = dynamic_cast<KoPAMasterPage*>(m_document->pages(true).value(pageNumber-1));
156​ if (!mp) {
157​ mp = new KoPAMasterPage();
158​ m_document->insertPage(mp, pageNumber-1);
159​ }
160​ m_document->insertPage(new KoPAPage(mp), pageNumber-1);
161​ }
162​ // Do the conversion!
163​ convert(inputDoc.documentElement(), pageNumber);
164​
165​ return KoFilter::OK;
166​}
167​
168​void Pdf2OdgImport::convert(const KoXmlElement &rootElement, int pageNumber)
169​{
170​ debugPdf<<rootElement.tagName();
171​ if (! m_document) {
172​ return;
173​ }
174​ // set default page size to A4
175​ QSizeF pageSize(550.0, 841.0);
176​
177​ SvgParser parser(m_document->resourceManager());
178​ parser.setXmlBaseDir(QFileInfo(m_chain->inputFile()).filePath());
179​
180​ QList<KoShape*> toplevelShapes = parser.parseSvg(rootElement, &pageSize);
181​ // parse the root svg element
182​ buildDocument(toplevelShapes, parser.shapes(), pageNumber);
183​
184​ // set the page size
185​ KoPageLayout & layout = m_document->pages().at(pageNumber-1)->pageLayout();
186​ layout.width = pageSize.width();
187​ layout.height = pageSize.height();
188​}
189​
190​void Pdf2OdgImport::buildDocument(const QList<KoShape*> &toplevelShapes, const QList<KoShape*> &shapes, int pageNumber)
191​{
192​ Q_UNUSED(shapes);
193​ KoPAPageBase *page = m_document->pages().at(pageNumber-1);
194​ // if we have only top level groups, make them layers
195​ bool onlyTopLevelGroups = true;
196​ foreach(KoShape * shape, toplevelShapes) {
197​ if (! dynamic_cast<KoShapeGroup*>(shape) || shape->filterEffectStack()) {
198​ onlyTopLevelGroups = false;
199​ break;
200​ }
201​ }
202​ KoShapeLayer *oldLayer = 0;
203​ if (page->shapeCount()) {
204​ oldLayer = dynamic_cast<KoShapeLayer*>(page->shapes().first());
205​ }
206​ if (onlyTopLevelGroups) {
207​ foreach(KoShape * shape, toplevelShapes) {
208​ // ungroup toplevel groups
209​ KoShapeGroup *group = dynamic_cast<KoShapeGroup*>(shape);
210​ // NOTE:
211​ // Only groups on first page has visible == true
212​ // Maybe an issue with poppler?
213​ group->setVisible(true);
214​ QList<KoShape*> children = group->shapes();
215​ KoShapeUngroupCommand cmd(group, children, QList<KoShape*>() << group);
216​ cmd.redo();
217​
218​ KoShapeLayer *layer = new KoShapeLayer();
219​ foreach(KoShape * child, children) {
220​ layer->addShape(child);
221​ }
222​ if (!group->name().isEmpty()) {
223​ layer->setName(group->name());
224​ }
225​ layer->setVisible(group->isVisible());
226​ layer->setZIndex(group->zIndex());
227​ page->addShape(layer);
228​ delete group;
229​ }
230​ } else {
231​ KoShapeLayer *layer = new KoShapeLayer();
232​ foreach(KoShape * shape, toplevelShapes) {
233​ shape->setVisible(true);
234​ layer->addShape(shape);
235​ }
236​ layer->setVisible(true);
237​ page->addShape(layer);
238​ }
239​ if (oldLayer) {
240​ page->removeShape(oldLayer);
241​ delete oldLayer;
242​ }
243​}
244​
245​#include "Pdf2OdgImport.moc"