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536 lines
14 KiB
536 lines
14 KiB
/* This file is part of the KDE project
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Copyright (c) 2001 Simon Hausmann <hausmann@kde.org>
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Copyright (C) 2002, 2003, 2004 Nicolas GOUTTE <goutte@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <qpainter.h>
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#include <qfile.h>
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#include <kdebug.h>
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#include <kurl.h>
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#include <kfilterdev.h>
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#include <kio/netaccess.h>
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#include "KoPictureKey.h"
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#include "KoPictureBase.h"
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#include "KoPictureImage.h"
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#include "KoPictureEps.h"
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#include "KoPictureClipart.h"
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#include "KoPictureWmf.h"
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#include "KoPictureShared.h"
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#include <kmdcodec.h>
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KoPictureShared::KoPictureShared(void) : m_base(NULL)
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{
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}
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void KoPictureShared::assignPictureId( uint _id)
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{
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m_pictureId = _id;
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}
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QString KoPictureShared::uniquePictureId() const
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{
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return "Pictures"+ QString::number(m_pictureId);
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}
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KoPictureShared::~KoPictureShared(void)
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{
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delete m_base;
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}
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KoPictureShared::KoPictureShared(const KoPictureShared &other)
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: QShared() // Some compilers want it explicitly!
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{
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// We need to use newCopy, because we want a real copy, not just a copy of the part of KoPictureBase
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if (other.m_base)
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m_base=other.m_base->newCopy();
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else
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m_base=NULL;
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}
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KoPictureShared& KoPictureShared::operator=( const KoPictureShared &other )
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{
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clear();
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kdDebug(30003) << "KoPictureShared::= before" << endl;
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if (other.m_base)
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m_base=other.m_base->newCopy();
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kdDebug(30003) << "KoPictureShared::= after" << endl;
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return *this;
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}
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KoPictureType::Type KoPictureShared::getType(void) const
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{
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if (m_base)
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return m_base->getType();
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return KoPictureType::TypeUnknown;
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}
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bool KoPictureShared::isNull(void) const
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{
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if (m_base)
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return m_base->isNull();
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return true;
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}
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void KoPictureShared::draw(QPainter& painter, int x, int y, int width, int height, int sx, int sy, int sw, int sh, bool fastMode)
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{
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if (m_base)
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m_base->draw(painter, x, y, width, height, sx, sy, sw, sh, fastMode);
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else
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{
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// Draw a red box (easier DEBUG)
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kdWarning(30003) << "Drawing red rectangle! (KoPictureShared::draw)" << endl;
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painter.save();
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painter.setBrush(QColor(255,0,0));
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painter.drawRect(x,y,width,height);
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painter.restore();
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}
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}
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bool KoPictureShared::loadWmf(QIODevice* io)
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{
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kdDebug(30003) << "KoPictureShared::loadWmf" << endl;
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if (!io)
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{
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kdError(30003) << "No QIODevice!" << endl;
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return false;
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}
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clear();
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// The extension .wmf was used (KOffice 1.1.x) for QPicture files
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// For an extern file or in the storage, .wmf can mean a real Windows Meta File.
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QByteArray array ( io->readAll() );
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if ((array[0]=='Q') && (array[1]=='P') &&(array[2]=='I') && (array[3]=='C'))
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{
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m_base=new KoPictureClipart();
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setExtension("qpic");
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}
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else
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{
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m_base=new KoPictureWmf();
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setExtension("wmf");
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}
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return m_base->loadData(array, m_extension);
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}
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bool KoPictureShared::loadTmp(QIODevice* io)
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// We have a temp file, probably from a downloaded file
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// We must check the file type
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{
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kdDebug(30003) << "KoPictureShared::loadTmp" << endl;
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if (!io)
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{
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kdError(30003) << "No QIODevice!" << endl;
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return false;
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}
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// The extension .wmf was used (KOffice 1.1.x) for QPicture files
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// For an extern file or in the storage, .wmf can mean a real Windows Meta File.
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QByteArray array ( io->readAll() );
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return identifyAndLoad( array );
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}
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bool KoPictureShared::identifyAndLoad( QByteArray array )
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{
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if ( array.size() < 5 )
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{
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kdError(30003) << "Picture is less than 5 bytes long!" << endl;
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return false;
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}
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QString strExtension;
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bool flag=false;
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// Try to find the file type by comparing magic on the first few bytes!
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// ### TODO: could not QImageIO::imageFormat do it too? (At least most of them?)
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if ((array[0]==char(0x89)) && (array[1]=='P') &&(array[2]=='N') && (array[3]=='G'))
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{
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strExtension="png";
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}
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else if ((array[0]==char(0xff)) && (array[1]==char(0xd8)) &&(array[2]==char(0xff)) && (array[3]==char(0xe0)))
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{
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strExtension="jpeg";
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}
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else if ((array[0]=='B') && (array[1]=='M'))
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{
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strExtension="bmp";
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}
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else if ((array[0]==char(0xd7)) && (array[1]==char(0xcd)) &&(array[2]==char(0xc6)) && (array[3]==char(0x9a)))
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{
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strExtension="wmf";
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}
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else if ((array[0]=='<') && (array[1]=='?') && ( array[2]=='x' ) && (array[3]=='m') && ( array[4]=='l' ) )
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{
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strExtension="svg";
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}
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else if ((array[0]=='Q') && (array[1]=='P') &&(array[2]=='I') && (array[3]=='C'))
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{
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strExtension="qpic";
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}
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else if ((array[0]=='%') && (array[1]=='!') &&(array[2]=='P') && (array[3]=='S'))
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{
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strExtension="eps";
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}
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else if ((array[0]==char(0xc5)) && (array[1]==char(0xd0)) && (array[2]==char(0xd3)) && (array[3]==char(0xc6)))
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{
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// So called "MS-DOS EPS file"
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strExtension="eps";
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}
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else if ((array[0]=='G') && (array[1]=='I') && (array[2]=='F') && (array[3]=='8'))
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{
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// GIF (87a or 89a)
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strExtension="gif";
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}
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else if ( ( array[0] == char( 0037 ) ) && ( array[1] == char( 0213 ) ) )
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{
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// Gzip
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QBuffer buffer(array);
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buffer.open(IO_ReadOnly);
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const bool flag = loadCompressed( &buffer, "application/x-gzip", "tmp" );
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buffer.close();
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return flag;
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}
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else if ( ( array[0] == 'B' ) && ( array[1] == 'Z' ) && ( array[2] == 'h') )
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{
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// BZip2
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QBuffer buffer(array);
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buffer.open(IO_ReadOnly);
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const bool flag = loadCompressed( &buffer, "application/x-bzip2", "tmp" );
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buffer.close();
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return flag;
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}
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else
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{
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kdDebug(30003) << "Cannot identify the type of temp file!"
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<< " Trying to convert to PNG! (in KoPictureShared::loadTmp" << endl;
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// Do not trust QBuffer and do not work directly on the QByteArray array
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// DF: It would be faster to work on array here, and to create a completely
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// different QBuffer for the writing code!
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QBuffer buf( array.copy() );
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if (!buf.open(IO_ReadOnly))
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{
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kdError(30003) << "Could not open read buffer!" << endl;
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return false;
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}
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QImageIO imageIO(&buf,NULL);
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if (!imageIO.read())
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{
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kdError(30003) << "Could not read image!" << endl;
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return false;
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}
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buf.close();
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if ( !buf.open( IO_WriteOnly | IO_Truncate ) )
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{
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kdError(30003) << "Could not open write buffer!" << endl;
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return false;
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}
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imageIO.setIODevice(&buf);
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imageIO.setFormat("PNG");
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if (!imageIO.write())
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{
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kdError(30003) << "Could not write converted image!" << endl;
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return false;
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}
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buf.close();
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array = buf.buffer();
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strExtension="png";
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}
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kdDebug(30003) << "Temp file considered to be " << strExtension << endl;
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clearAndSetMode(strExtension);
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if (m_base)
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flag = m_base->loadData(array,strExtension);
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setExtension(strExtension);
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return flag;
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}
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bool KoPictureShared::loadXpm(QIODevice* io)
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{
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kdDebug(30003) << "KoPictureShared::loadXpm" << endl;
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if (!io)
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{
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kdError(30003) << "No QIODevice!" << endl;
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return false;
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}
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clear();
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// Old KPresenter XPM files have char(1) instead of some "
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// Therefore we need to treat XPM separately
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QByteArray array=io->readAll();
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// As XPM files are normally only ASCII files, we can replace it without problems
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int pos=0;
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while ((pos=array.find(char(1),pos))!=-1)
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{
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array[pos]='"';
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}
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// Now that the XPM file is corrected, we need to load it.
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m_base=new KoPictureImage();
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QBuffer buffer(array);
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bool check = m_base->load(&buffer,"xpm");
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setExtension("xpm");
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return check;
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}
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bool KoPictureShared::save(QIODevice* io) const
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{
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if (!io)
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return false;
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if (m_base)
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return m_base->save(io);
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return false;
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}
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bool KoPictureShared::saveAsBase64( KoXmlWriter& writer ) const
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{
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if ( m_base )
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m_base->saveAsBase64( writer );
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return false;
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}
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void KoPictureShared::clear(void)
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{
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// Clear does not reset the key m_key!
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delete m_base;
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m_base=NULL;
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}
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void KoPictureShared::clearAndSetMode(const QString& newMode)
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{
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delete m_base;
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m_base=NULL;
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const QString mode=newMode.lower();
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if ((mode=="svg") || (mode=="qpic"))
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{
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m_base=new KoPictureClipart();
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}
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else if (mode=="wmf")
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{
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m_base=new KoPictureWmf();
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}
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else if ( (mode=="eps") || (mode=="epsi") || (mode=="epsf") )
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{
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m_base=new KoPictureEps();
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}
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else
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{ // TODO: test if QImageIO really knows the file format
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m_base=new KoPictureImage();
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}
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}
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QString KoPictureShared::getExtension(void) const
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{
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return m_extension;
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}
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void KoPictureShared::setExtension(const QString& extension)
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{
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m_extension = extension;
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}
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QString KoPictureShared::getMimeType(void) const
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{
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if (m_base)
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return m_base->getMimeType(m_extension);
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return QString(NULL_MIME_TYPE);
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}
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bool KoPictureShared::loadFromBase64( const QCString& str )
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{
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clear();
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QByteArray data;
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KCodecs::base64Decode( str, data );
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return identifyAndLoad( data );
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}
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bool KoPictureShared::load(QIODevice* io, const QString& extension)
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{
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kdDebug(30003) << "KoPictureShared::load(QIODevice*, const QString&) " << extension << endl;
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bool flag=false;
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QString ext(extension.lower());
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if (ext=="wmf")
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flag=loadWmf(io);
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else if (ext=="tmp") // ### TODO: also remote scripts need this, don't they?
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flag=loadTmp(io);
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else if ( ext == "bz2" )
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{
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flag = loadCompressed( io, "application/x-bzip2", "tmp" );
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}
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else if ( ext == "gz" )
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{
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flag = loadCompressed( io, "application/x-gzip", "tmp" );
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}
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else if ( ext == "svgz" )
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{
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flag = loadCompressed( io, "application/x-gzip", "svg" );
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}
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else
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{
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clearAndSetMode(ext);
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if (m_base)
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flag = m_base->load(io, ext);
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setExtension(ext);
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}
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if (!flag)
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{
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kdError(30003) << "File was not loaded! (KoPictureShared::load)" << endl;
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}
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return flag;
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}
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bool KoPictureShared::loadFromFile(const QString& fileName)
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{
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kdDebug(30003) << "KoPictureShared::loadFromFile " << fileName << endl;
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if ( fileName.isEmpty() )
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{
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kdError(30003) << "Cannot load file with empty name!" << endl;
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return false;
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}
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QFile file(fileName);
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if (!file.open(IO_ReadOnly))
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return false;
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bool flag = false;
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const int pos=fileName.findRev('.');
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if (pos==-1)
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{
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kdDebug(30003) << "File with no extension!" << endl;
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// As we have no extension, consider it like a temporary file
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flag = loadTmp( &file );
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}
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else
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{
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const QString extension( fileName.mid( pos+1 ) );
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// ### TODO: check if the extension if gz or bz2 and find the previous extension
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flag = load( &file, extension );
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}
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file.close();
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return flag;
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}
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QSize KoPictureShared::getOriginalSize(void) const
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{
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if (m_base)
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return m_base->getOriginalSize();
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return QSize(0,0);
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}
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QPixmap KoPictureShared::generatePixmap(const QSize& size, bool smoothScale)
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{
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if (m_base)
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return m_base->generatePixmap(size, smoothScale);
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return QPixmap();
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}
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QDragObject* KoPictureShared::dragObject( QWidget *dragSource, const char *name )
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{
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if (m_base)
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return m_base->dragObject( dragSource, name );
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return 0L;
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}
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QImage KoPictureShared::generateImage(const QSize& size)
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{
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if (m_base)
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return m_base->generateImage( size );
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return QImage();
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}
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bool KoPictureShared::hasAlphaBuffer() const
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{
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if (m_base)
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return m_base->hasAlphaBuffer();
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return false;
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}
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void KoPictureShared::setAlphaBuffer(bool enable)
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{
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if (m_base)
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m_base->setAlphaBuffer(enable);
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}
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QImage KoPictureShared::createAlphaMask(int conversion_flags) const
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{
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if (m_base)
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return m_base->createAlphaMask(conversion_flags);
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return QImage();
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}
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void KoPictureShared::clearCache(void)
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{
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if (m_base)
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m_base->clearCache();
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}
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bool KoPictureShared::loadCompressed( QIODevice* io, const QString& mimeType, const QString& extension )
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{
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// ### TODO: check that we do not have an endless recursion
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QIODevice* in = KFilterDev::device( io, mimeType, false);
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if ( !in )
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{
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kdError(30003) << "Cannot create device for uncompressing! Aborting!" << endl;
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return false;
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}
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if ( !in->open( IO_ReadOnly ) )
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{
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kdError(30003) << "Cannot open file for uncompressing! Aborting!" << endl;
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delete in;
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return false;
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}
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const bool flag = load( in, extension );
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in->close();
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delete in;
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return flag;
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}
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