joachim99@69: /***************************************************************************
joachim99@77:  * Copyright (C) 2003-2007 Joachim Eibl <joachim.eibl at gmx.de>           *
joachim99@69:  *                                                                         *
joachim99@69:  *   This program is free software; you can redistribute it and/or modify  *
joachim99@69:  *   it under the terms of the GNU General Public License as published by  *
joachim99@69:  *   the Free Software Foundation; either version 2 of the License, or     *
joachim99@69:  *   (at your option) any later version.                                   *
joachim99@69:  *                                                                         *
joachim99@69:  *   This program is distributed in the hope that it will be useful,       *
joachim99@69:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
joachim99@69:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
joachim99@69:  *   GNU General Public License for more details.                          *
joachim99@69:  *                                                                         *
joachim99@69:  *   You should have received a copy of the GNU General Public License     *
joachim99@69:  *   along with this program; if not, write to the                         *
joachim99@69:  *   Free Software Foundation, Inc.,                                       *
joachim99@69:  *   51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA.           *
joachim99@69:  ***************************************************************************/
joachim99@8: 
joachim99@8: #include "kdiff3_part.h"
joachim99@8: 
joachim99@80: #include <kcomponentdata.h>
joachim99@8: #include <kaction.h>
joachim99@80: #include <kstandardaction.h>
joachim99@8: #include <kfiledialog.h>
joachim99@8: 
joachim99@8: #include <qfile.h>
joachim99@8: #include <qtextstream.h>
joachim99@75: #include <QProcess>
joachim99@75: 
joachim99@8: #include "kdiff3.h"
joachim99@8: #include "fileaccess.h"
joachim99@8: 
joachim99@8: #include <kmessagebox.h>
joachim99@8: #include <klocale.h>
joachim99@8: #include <iostream>
joachim99@66: 
joachim99@66: #include "version.h"
joachim99@66: 
joachim99@8: KDiff3Part::KDiff3Part( QWidget *parentWidget, const char *widgetName,
joachim99@80:                                   QObject *parent )
joachim99@80:     : KParts::ReadWritePart(parent)
joachim99@8: {
joachim99@8:     // we need an instance
joachim99@80:     setComponentData( *KDiff3PartFactory::instance() );
joachim99@8: 
joachim99@8:     // this should be your custom internal widget
joachim99@8:     m_widget = new KDiff3App( parentWidget, widgetName, this );
joachim99@8:     
joachim99@8:     // This hack is necessary to avoid a crash when the program terminates.
joachim99@8:     m_bIsShell = dynamic_cast<KParts::MainWindow*>(parentWidget)!=0;
joachim99@8: 
joachim99@8:     // notify the part that this is our internal widget
joachim99@8:     setWidget(m_widget);
joachim99@8: 
joachim99@8:     // create our actions
joachim99@80:     //KStandardAction::open(this, SLOT(fileOpen()), actionCollection());
joachim99@80:     //KStandardAction::saveAs(this, SLOT(fileSaveAs()), actionCollection());
joachim99@80:     //KStandardAction::save(this, SLOT(save()), actionCollection());
joachim99@8: 
joachim99@8:     setXMLFile("kdiff3_part.rc");
joachim99@8: 
joachim99@8:     // we are read-write by default
joachim99@8:     setReadWrite(true);
joachim99@8: 
joachim99@8:     // we are not modified since we haven't done anything yet
joachim99@8:     setModified(false);
joachim99@8: }
joachim99@8: 
joachim99@8: KDiff3Part::~KDiff3Part()
joachim99@8: {
joachim99@8:    if ( m_widget!=0  && ! m_bIsShell )
joachim99@8:    {
joachim99@80:       m_widget->saveOptions( m_widget->isPart() ? componentData().config() : KGlobal::config() );
joachim99@8:    }
joachim99@8: }
joachim99@8: 
joachim99@8: void KDiff3Part::setReadWrite(bool /*rw*/)
joachim99@8: {
joachim99@8: //    ReadWritePart::setReadWrite(rw);
joachim99@8: }
joachim99@8: 
joachim99@8: void KDiff3Part::setModified(bool /*modified*/)
joachim99@8: {
joachim99@8: /*
joachim99@8:     // get a handle on our Save action and make sure it is valid
joachim99@80:     KAction *save = actionCollection()->action(KStandardAction::stdName(KStandardAction::Save));
joachim99@8:     if (!save)
joachim99@8:         return;
joachim99@8: 
joachim99@8:     // if so, we either enable or disable it based on the current
joachim99@8:     // state
joachim99@8:     if (modified)
joachim99@8:         save->setEnabled(true);
joachim99@8:     else
joachim99@8:         save->setEnabled(false);
joachim99@8: 
joachim99@8:     // in any event, we want our parent to do it's thing
joachim99@8:     ReadWritePart::setModified(modified);
joachim99@8: */
joachim99@8: }
joachim99@8: 
joachim99@68: static void getNameAndVersion( const QString& str, const QString& lineStart, QString& fileName, QString& version )
joachim99@68: {
joachim99@68:    if ( str.left( lineStart.length() )==lineStart && fileName.isEmpty() )
joachim99@68:    {
joachim99@70:       int pos = lineStart.length();
joachim99@68:       while ( pos<str.length() && (str[pos]==' ' || str[pos]=='\t') ) ++pos;
joachim99@70:       int pos2 = str.length()-1;
joachim99@68:       while ( pos2>pos )
joachim99@68:       { 
joachim99@68:          while (pos2>pos && str[pos2]!=' ' && str[pos2]!='\t') --pos2;
joachim99@68:          fileName = str.mid( pos, pos2-pos );
joachim99@75:          std::cerr << "KDiff3: " << fileName.toLatin1().constData() << std::endl;
joachim99@68:          if ( FileAccess(fileName).exists() ) break;
joachim99@68:          --pos2;
joachim99@68:       }
joachim99@68:       
joachim99@75:       int vpos = str.lastIndexOf("\t", -1);
joachim99@68:       if ( vpos>0 && vpos>(int)pos2 )
joachim99@68:       {
joachim99@68:          version = str.mid( vpos+1 );
joachim99@68:          while( !version.right(1)[0].isLetterOrNumber() )
joachim99@68:             version.truncate( version.length()-1 );
joachim99@68:       }
joachim99@68:    }
joachim99@68: }
joachim99@68: 
joachim99@68: 
joachim99@8: bool KDiff3Part::openFile()
joachim99@8: {
joachim99@8:    // m_file is always local so we can use QFile on it
joachim99@80:    std::cerr << "KDiff3: " << localFilePath().toLatin1().constData() << std::endl;
joachim99@80:    QFile file(localFilePath());
joachim99@70:    if (file.open(QIODevice::ReadOnly) == false)
joachim99@8:       return false;
joachim99@8: 
joachim99@8:    // our example widget is text-based, so we use QTextStream instead
joachim99@8:    // of a raw QDataStream
joachim99@8:    QTextStream stream(&file);
joachim99@8:    QString str;
joachim99@8:    QString fileName1;
joachim99@8:    QString fileName2;
joachim99@8:    QString version1;
joachim99@8:    QString version2;
joachim99@70:    while (!stream.atEnd() && (fileName1.isEmpty() || fileName2.isEmpty()) )
joachim99@8:    {
joachim99@8:       str = stream.readLine() + "\n";
joachim99@68:       getNameAndVersion( str, "---", fileName1, version1 );
joachim99@68:       getNameAndVersion( str, "+++", fileName2, version2 );
joachim99@8:    }
joachim99@8: 
joachim99@8:    file.close();
joachim99@8: 
joachim99@8:    if ( fileName1.isEmpty() && fileName2.isEmpty() )
joachim99@8:    {
joachim99@8:       KMessageBox::sorry(m_widget, i18n("Couldn't find files for comparison."));
joachim99@8:       return false;
joachim99@8:    }
joachim99@8: 
joachim99@8:    FileAccess f1(fileName1);
joachim99@8:    FileAccess f2(fileName2);
joachim99@8: 
joachim99@8:    if ( f1.exists() && f2.exists() && fileName1!=fileName2 )
joachim99@8:    {
joachim99@66:       m_widget->slotFileOpen2( fileName1, fileName2, "", "", "", "", "", 0 );
joachim99@8:       return true;
joachim99@8:    }
joachim99@8:    else if ( version1.isEmpty() && f1.exists() )
joachim99@8:    {
joachim99@8:       // Normal patch
joachim99@8:       // patch -f -u --ignore-whitespace -i [inputfile] -o [outfile] [patchfile]
joachim99@8:       QString tempFileName = FileAccess::tempFileName();
joachim99@80:       QString cmd = "patch -f -u --ignore-whitespace -i \"" + localFilePath() +
joachim99@68:                   "\" -o \""+tempFileName + "\" \"" + fileName1+ "\"";
joachim99@8: 
joachim99@75:       QProcess process;
joachim99@75:       process.start( cmd );
joachim99@75:       process.waitForFinished(-1);
joachim99@8: 
joachim99@8:       m_widget->slotFileOpen2( fileName1, tempFileName, "", "",
joachim99@66:                                "", version2.isEmpty() ? fileName2 : "REV:"+version2+":"+fileName2, "", 0 ); // alias names
joachim99@80: //    std::cerr << "KDiff3: f1:" << fileName1.toLatin1() <<"<->"<<tempFileName.toLatin1()<< std::endl;
joachim99@73:       FileAccess::removeTempFile( tempFileName );
joachim99@8:    }
joachim99@8:    else if ( version2.isEmpty() && f2.exists() )
joachim99@8:    {
joachim99@8:       // Reverse patch
joachim99@8:       // patch -f -u -R --ignore-whitespace -i [inputfile] -o [outfile] [patchfile]
joachim99@8:       QString tempFileName = FileAccess::tempFileName();
joachim99@80:       QString cmd = "patch -f -u -R --ignore-whitespace -i \"" + localFilePath() +
joachim99@68:                   "\" -o \""+tempFileName + "\" \"" + fileName2+"\"";
joachim99@8: 
joachim99@75:       QProcess process;
joachim99@75:       process.start( cmd );
joachim99@75:       process.waitForFinished(-1);
joachim99@8: 
joachim99@8:       m_widget->slotFileOpen2( tempFileName, fileName2, "", "",
joachim99@66:                                version1.isEmpty() ? fileName1 : "REV:"+version1+":"+fileName1, "", "", 0 ); // alias name
joachim99@80: //    std::cerr << "KDiff3: f2:" << fileName2.toLatin1() <<"<->"<<tempFileName.toLatin1()<< std::endl;
joachim99@73:       FileAccess::removeTempFile( tempFileName );
joachim99@8:    }
joachim99@8:    else if ( !version1.isEmpty() && !version2.isEmpty() )
joachim99@8:    {
joachim99@75:    std::cerr << "KDiff3: f1/2:" << fileName1.toLatin1().constData() <<"<->"<<fileName2.toLatin1().constData()<< std::endl;
joachim99@8:       // Assuming that files are on CVS: Try to get them
joachim99@8:       // cvs update -p -r [REV] [FILE] > [OUTPUTFILE]
joachim99@8: 
joachim99@8:       QString tempFileName1 = FileAccess::tempFileName();
joachim99@68:       QString cmd1 = "cvs update -p -r " + version1 + " \"" + fileName1 + "\" >\""+tempFileName1+"\"";
joachim99@75:       QProcess process1;
joachim99@75:       process1.start( cmd1 );
joachim99@75:       process1.waitForFinished(-1);
joachim99@8: 
joachim99@8:       QString tempFileName2 = FileAccess::tempFileName();
joachim99@68:       QString cmd2 = "cvs update -p -r " + version2 + " \"" + fileName2 + "\" >\""+tempFileName2+"\"";
joachim99@75:       QProcess process2;
joachim99@75:       process2.start( cmd2 );
joachim99@75:       process2.waitForFinished(-1);
joachim99@8: 
joachim99@8:       m_widget->slotFileOpen2( tempFileName1, tempFileName2, "", "",
joachim99@8:          "REV:"+version1+":"+fileName1,
joachim99@8:          "REV:"+version2+":"+fileName2,
joachim99@66:          "", 0
joachim99@8:       );
joachim99@8: 
joachim99@80: //    std::cerr << "KDiff3: f1/2:" << tempFileName1.toLatin1() <<"<->"<<tempFileName2.toLatin1()<< std::endl;
joachim99@73:       FileAccess::removeTempFile( tempFileName1 );
joachim99@73:       FileAccess::removeTempFile( tempFileName2 );
joachim99@8:       return true;
joachim99@8:    }
joachim99@8:    else
joachim99@8:    {
joachim99@8:       KMessageBox::sorry(m_widget, i18n("Couldn't find files for comparison."));
joachim99@8:    }
joachim99@8: 
joachim99@8:    return true;
joachim99@8: }
joachim99@8: 
joachim99@8: bool KDiff3Part::saveFile()
joachim99@8: {
joachim99@8: /*    // if we aren't read-write, return immediately
joachim99@8:     if (isReadWrite() == false)
joachim99@8:         return false;
joachim99@8: 
joachim99@80:     // localFilePath() is always local, so we use QFile
joachim99@80:     QFile file(localFilePath());
joachim99@8:     if (file.open(IO_WriteOnly) == false)
joachim99@8:         return false;
joachim99@8: 
joachim99@8:     // use QTextStream to dump the text to the file
joachim99@8:     QTextStream stream(&file);
joachim99@8:     //stream << m_widget->text();
joachim99@8: 
joachim99@8:     file.close();
joachim99@8:     return true;
joachim99@8: */
joachim99@8:     return false;  // Not implemented
joachim99@8: }
joachim99@8: 
joachim99@8: 
joachim99@8: // It's usually safe to leave the factory code alone.. with the
joachim99@8: // notable exception of the KAboutData data
joachim99@8: #include <kaboutdata.h>
joachim99@8: #include <klocale.h>
joachim99@80: #include <kglobal.h>
joachim99@8: 
joachim99@80: KComponentData*  KDiff3PartFactory::s_instance = 0L;
joachim99@8: KAboutData* KDiff3PartFactory::s_about = 0L;
joachim99@8: 
joachim99@8: KDiff3PartFactory::KDiff3PartFactory()
joachim99@8:     : KParts::Factory()
joachim99@8: {
joachim99@8: }
joachim99@8: 
joachim99@8: KDiff3PartFactory::~KDiff3PartFactory()
joachim99@8: {
joachim99@8:     delete s_instance;
joachim99@8:     delete s_about;
joachim99@8: 
joachim99@8:     s_instance = 0L;
joachim99@8: }
joachim99@8: 
joachim99@80: KParts::Part* KDiff3PartFactory::createPartObject( QWidget *parentWidget,
joachim99@80:                                                         QObject *parent,
joachim99@8:                                                         const char *classname, const QStringList&/*args*/ )
joachim99@8: {
joachim99@8:     // Create an instance of our Part
joachim99@80:     KDiff3Part* obj = new KDiff3Part( parentWidget, 0, parent );
joachim99@8: 
joachim99@8:     // See if we are to be read-write or not
joachim99@75:     if (QString(classname) == "KParts::ReadOnlyPart")
joachim99@8:         obj->setReadWrite(false);
joachim99@8: 
joachim99@8:     return obj;
joachim99@8: }
joachim99@8: 
joachim99@80: KComponentData* KDiff3PartFactory::instance()
joachim99@8: {
joachim99@8:     if( !s_instance )
joachim99@8:     {
joachim99@80:         s_about = new KAboutData(QByteArray("kdiff3part"), QByteArray("kdiff3part"), ki18n("KDiff3Part"), QByteArray(VERSION));
joachim99@80:         s_about->addAuthor(ki18n("Joachim Eibl"), KLocalizedString(), QByteArray("joachim.eibl at gmx.de"));
joachim99@80:         s_instance = new KComponentData(s_about);
joachim99@8:     }
joachim99@8:     return s_instance;
joachim99@8: }
joachim99@8: 
joachim99@8: extern "C"
joachim99@8: {
joachim99@8:     void* init_libkdiff3part()
joachim99@8:     {
joachim99@8:         return new KDiff3PartFactory;
joachim99@8:     }
joachim99@53: }
joachim99@8: 
joachim99@66: // Suppress warning with --enable-final
joachim99@66: #undef VERSION
joachim99@66: 
joachim99@70: //#include "kdiff3_part.moc"