| /* poppler-private.cc: qt interface to poppler |
| * Copyright (C) 2005, Net Integration Technologies, Inc. |
| * Copyright (C) 2006 by Albert Astals Cid <aacid@kde.org> |
| * Copyright (C) 2008 by Pino Toscano <pino@kde.org> |
| * Inspired on code by |
| * Copyright (C) 2004 by Albert Astals Cid <tsdgeos@terra.es> |
| * Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "poppler-private.h" |
| |
| #include <QtCore/QByteArray> |
| #include <QtCore/QDebug> |
| #include <QtCore/QVariant> |
| |
| #include <Link.h> |
| #include <Outline.h> |
| |
| namespace Poppler { |
| |
| void qt4ErrorFunction(int pos, char *msg, va_list args) |
| { |
| QString emsg; |
| char buffer[1024]; // should be big enough |
| |
| if (pos >= 0) |
| { |
| emsg = QString::fromLatin1("Error (%1): ").arg(pos); |
| } |
| else |
| { |
| emsg = QString::fromLatin1("Error: "); |
| } |
| qvsnprintf(buffer, sizeof(buffer) - 1, msg, args); |
| emsg += QString::fromAscii(buffer); |
| qDebug() << qPrintable(emsg); |
| } |
| |
| QString unicodeToQString(Unicode* u, int len) { |
| QString ret; |
| ret.resize(len); |
| QChar* qch = (QChar*) ret.unicode(); |
| for (;len;--len) |
| *qch++ = (QChar) *u++; |
| return ret; |
| } |
| |
| QString UnicodeParsedString(GooString *s1) { |
| if ( !s1 || s1->getLength() == 0 ) |
| return QString(); |
| |
| GBool isUnicode; |
| int i; |
| Unicode u; |
| QString result; |
| if ( ( s1->getChar(0) & 0xff ) == 0xfe && ( s1->getLength() > 1 && ( s1->getChar(1) & 0xff ) == 0xff ) ) |
| { |
| isUnicode = gTrue; |
| i = 2; |
| } |
| else |
| { |
| isUnicode = gFalse; |
| i = 0; |
| } |
| while ( i < s1->getLength() ) |
| { |
| if ( isUnicode ) |
| { |
| u = ( ( s1->getChar(i) & 0xff ) << 8 ) | ( s1->getChar(i+1) & 0xff ); |
| i += 2; |
| } |
| else |
| { |
| u = s1->getChar(i) & 0xff; |
| ++i; |
| } |
| result += unicodeToQString( &u, 1 ); |
| } |
| return result; |
| } |
| |
| GooString *QStringToUnicodeGooString(const QString &s) { |
| int len = s.length() * 2 + 2; |
| char *cstring = (char *)gmallocn(len, sizeof(char)); |
| cstring[0] = 0xfe; |
| cstring[1] = 0xff; |
| for (int i = 0; i < s.length(); ++i) |
| { |
| cstring[2+i*2] = s.at(i).row(); |
| cstring[3+i*2] = s.at(i).cell(); |
| } |
| GooString *ret = new GooString(cstring, len); |
| gfree(cstring); |
| return ret; |
| } |
| |
| GooString *QStringToGooString(const QString &s) { |
| int len = s.length(); |
| char *cstring = (char *)gmallocn(s.length(), sizeof(char)); |
| for (int i = 0; i < len; ++i) |
| cstring[i] = s.at(i).unicode(); |
| GooString *ret = new GooString(cstring, len); |
| gfree(cstring); |
| return ret; |
| } |
| |
| void linkActionToTocItem( ::LinkAction * a, DocumentData * doc, QDomElement * e ) |
| { |
| if ( !a || !e ) |
| return; |
| |
| switch ( a->getKind() ) |
| { |
| case actionGoTo: |
| { |
| // page number is contained/referenced in a LinkGoTo |
| LinkGoTo * g = static_cast< LinkGoTo * >( a ); |
| LinkDest * destination = g->getDest(); |
| if ( !destination && g->getNamedDest() ) |
| { |
| // no 'destination' but an internal 'named reference'. we could |
| // get the destination for the page now, but it's VERY time consuming, |
| // so better storing the reference and provide the viewport on demand |
| GooString *s = g->getNamedDest(); |
| QChar *charArray = new QChar[s->getLength()]; |
| for (int i = 0; i < s->getLength(); ++i) charArray[i] = QChar(s->getCString()[i]); |
| QString aux(charArray, s->getLength()); |
| e->setAttribute( "DestinationName", aux ); |
| delete[] charArray; |
| } |
| else if ( destination && destination->isOk() ) |
| { |
| LinkDestinationData ldd(destination, NULL, doc, false); |
| e->setAttribute( "Destination", LinkDestination(ldd).toString() ); |
| } |
| break; |
| } |
| case actionGoToR: |
| { |
| // page number is contained/referenced in a LinkGoToR |
| LinkGoToR * g = static_cast< LinkGoToR * >( a ); |
| LinkDest * destination = g->getDest(); |
| if ( !destination && g->getNamedDest() ) |
| { |
| // no 'destination' but an internal 'named reference'. we could |
| // get the destination for the page now, but it's VERY time consuming, |
| // so better storing the reference and provide the viewport on demand |
| GooString *s = g->getNamedDest(); |
| QChar *charArray = new QChar[s->getLength()]; |
| for (int i = 0; i < s->getLength(); ++i) charArray[i] = QChar(s->getCString()[i]); |
| QString aux(charArray, s->getLength()); |
| e->setAttribute( "DestinationName", aux ); |
| delete[] charArray; |
| } |
| else if ( destination && destination->isOk() ) |
| { |
| LinkDestinationData ldd(destination, NULL, doc, g->getFileName() != 0); |
| e->setAttribute( "Destination", LinkDestination(ldd).toString() ); |
| } |
| e->setAttribute( "ExternalFileName", g->getFileName()->getCString() ); |
| break; |
| } |
| case actionURI: |
| { |
| LinkURI * u = static_cast< LinkURI * >( a ); |
| e->setAttribute( "DestinationURI", u->getURI()->getCString() ); |
| } |
| default: ; |
| } |
| } |
| |
| void DocumentData::addTocChildren( QDomDocument * docSyn, QDomNode * parent, GooList * items ) |
| { |
| int numItems = items->getLength(); |
| for ( int i = 0; i < numItems; ++i ) |
| { |
| // iterate over every object in 'items' |
| OutlineItem * outlineItem = (OutlineItem *)items->get( i ); |
| |
| // 1. create element using outlineItem's title as tagName |
| QString name; |
| Unicode * uniChar = outlineItem->getTitle(); |
| int titleLength = outlineItem->getTitleLength(); |
| name = unicodeToQString(uniChar, titleLength); |
| if ( name.isEmpty() ) |
| continue; |
| |
| QDomElement item = docSyn->createElement( name ); |
| parent->appendChild( item ); |
| |
| // 2. find the page the link refers to |
| ::LinkAction * a = outlineItem->getAction(); |
| linkActionToTocItem( a, this, &item ); |
| |
| item.setAttribute( "Open", QVariant( (bool)outlineItem->isOpen() ).toString() ); |
| |
| // 3. recursively descend over children |
| outlineItem->open(); |
| GooList * children = outlineItem->getKids(); |
| if ( children ) |
| addTocChildren( docSyn, &item, children ); |
| } |
| } |
| |
| } |