joachim99@8: /*
joachim99@8:  * Copyright (C) 2003 Joachim Eibl <joachim.eibl@gmx.de>
joachim99@8:  */
joachim99@8: 
joachim99@8: #include "kdiff3_part.h"
joachim99@8: 
joachim99@8: #include <kinstance.h>
joachim99@8: #include <kaction.h>
joachim99@8: #include <kstdaction.h>
joachim99@8: #include <kfiledialog.h>
joachim99@8: 
joachim99@8: #include <qfile.h>
joachim99@8: #include <qtextstream.h>
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@8: KDiff3Part::KDiff3Part( QWidget *parentWidget, const char *widgetName,
joachim99@8:                                   QObject *parent, const char *name )
joachim99@8:     : KParts::ReadOnlyPart(parent, name)
joachim99@8: {
joachim99@8:     // we need an instance
joachim99@8:     setInstance( 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@8:     //KStdAction::open(this, SLOT(fileOpen()), actionCollection());
joachim99@8:     //KStdAction::saveAs(this, SLOT(fileSaveAs()), actionCollection());
joachim99@8:     //KStdAction::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@8:       m_widget->saveOptions( m_widget->isPart() ? instance()->config() : kapp->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@8:     KAction *save = actionCollection()->action(KStdAction::stdName(KStdAction::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@8: bool KDiff3Part::openFile()
joachim99@8: {
joachim99@8:    // m_file is always local so we can use QFile on it
joachim99@8:    QFile file(m_file);
joachim99@8:    if (file.open(IO_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@8:    while (!stream.eof() && (fileName1.isEmpty() || fileName2.isEmpty()) )
joachim99@8:    {
joachim99@8:       str = stream.readLine() + "\n";
joachim99@8:       if ( str.left(4)=="--- " && fileName1.isEmpty() )
joachim99@8:       {
joachim99@8:          int pos = str.find("\t");
joachim99@8:          fileName1 = str.mid( 4, pos-4 );
joachim99@8:          int vpos = str.findRev("\t", -1);
joachim99@8:          if ( pos>0 && vpos>0 && vpos>pos )
joachim99@8:          {
joachim99@8:             version1 = str.mid( vpos+1 );
joachim99@8:             while( !version1.right(1)[0].isLetterOrNumber() )
joachim99@8:                version1.truncate( version1.length()-1 );
joachim99@8:          }
joachim99@8:       }
joachim99@8:       if ( str.left(4)=="+++ " && fileName2.isEmpty() )
joachim99@8:       {
joachim99@8:          int pos = str.find("\t");
joachim99@8:          fileName2 = str.mid( 4, pos-4 );
joachim99@8:          int vpos = str.findRev("\t", -1);
joachim99@8:          if ( pos>0 && vpos>0 && vpos>pos )
joachim99@8:          {
joachim99@8:             version2 = str.mid( vpos+1 );
joachim99@8:             while( !version2.right(1)[0].isLetterOrNumber() )
joachim99@8:                version2.truncate( version2.length()-1 );
joachim99@8:          }
joachim99@8:       }
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@8:       m_widget->slotFileOpen2( fileName1, fileName2, "", "", "", "", "" );
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@8:       QString cmd = "patch -f -u --ignore-whitespace -i " + m_file +
joachim99@8:                   " -o "+tempFileName + " " + fileName1;
joachim99@8: 
joachim99@8:       ::system( cmd.ascii() );
joachim99@8: 
joachim99@8:       m_widget->slotFileOpen2( fileName1, tempFileName, "", "",
joachim99@8:                                "", version2.isEmpty() ? fileName2 : "REV:"+version2+":"+fileName2, "" ); // alias names
joachim99@8:       FileAccess::removeFile( 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@8:       QString cmd = "patch -f -u -R --ignore-whitespace -i " + m_file +
joachim99@8:                   " -o "+tempFileName + " " + fileName2;
joachim99@8: 
joachim99@8:       ::system( cmd.ascii() );
joachim99@8: 
joachim99@8:       m_widget->slotFileOpen2( tempFileName, fileName2, "", "",
joachim99@8:                                version1.isEmpty() ? fileName1 : "REV:"+version1+":"+fileName1, "", "" ); // alias name
joachim99@8:       FileAccess::removeFile( tempFileName );
joachim99@8:    }
joachim99@8:    else if ( !version1.isEmpty() && !version2.isEmpty() )
joachim99@8:    {
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@8:       QString cmd1 = "cvs update -p -r " + version1 + " " + fileName1 + " >"+tempFileName1;
joachim99@8:       ::system( cmd1.ascii() );
joachim99@8: 
joachim99@8:       QString tempFileName2 = FileAccess::tempFileName();
joachim99@8:       QString cmd2 = "cvs update -p -r " + version2 + " " + fileName2 + " >"+tempFileName2;
joachim99@8:       ::system( cmd2.ascii() );
joachim99@8: 
joachim99@8:       m_widget->slotFileOpen2( tempFileName1, tempFileName2, "", "",
joachim99@8:          "REV:"+version1+":"+fileName1,
joachim99@8:          "REV:"+version2+":"+fileName2,
joachim99@8:          ""
joachim99@8:       );
joachim99@8: 
joachim99@8:       FileAccess::removeFile( tempFileName1 );
joachim99@8:       FileAccess::removeFile( 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@8:     // m_file is always local, so we use QFile
joachim99@8:     QFile file(m_file);
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@8: 
joachim99@8: KInstance*  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@8: KParts::Part* KDiff3PartFactory::createPartObject( QWidget *parentWidget, const char *widgetName,
joachim99@8:                                                         QObject *parent, const char *name,
joachim99@8:                                                         const char *classname, const QStringList&/*args*/ )
joachim99@8: {
joachim99@8:     // Create an instance of our Part
joachim99@8:     KDiff3Part* obj = new KDiff3Part( parentWidget, widgetName, parent, name );
joachim99@8: 
joachim99@8:     // See if we are to be read-write or not
joachim99@8:     if (QCString(classname) == "KParts::ReadOnlyPart")
joachim99@8:         obj->setReadWrite(false);
joachim99@8: 
joachim99@8:     return obj;
joachim99@8: }
joachim99@8: 
joachim99@8: KInstance* KDiff3PartFactory::instance()
joachim99@8: {
joachim99@8:     if( !s_instance )
joachim99@8:     {
joachim99@8:         s_about = new KAboutData("kdiff3part", I18N_NOOP("KDiff3Part"), "0.9.70");
joachim99@8:         s_about->addAuthor("Joachim Eibl", 0, "joachim.eibl@gmx.de");
joachim99@8:         s_instance = new KInstance(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@8: #include "kdiff3_part.moc"