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kdiff3/src/kdiff3_part.cpp

310 lines
9.9 KiB

/***************************************************************************
* Copyright (C) 2003-2007 Joachim Eibl <joachim.eibl at gmx.de> *
* *
* 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 of the License, 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 Steet, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "kdiff3_part.h"
#include <kinstance.h>
#include <kaction.h>
#include <kstdaction.h>
#include <kfiledialog.h>
#include <tqfile.h>
#include <tqtextstream.h>
#include "kdiff3.h"
#include "fileaccess.h"
#include <kmessagebox.h>
#include <klocale.h>
#include <iostream>
#include "version.h"
KDiff3Part::KDiff3Part( TQWidget *parentWidget, const char *widgetName,
TQObject *tqparent, const char *name )
: KParts::ReadOnlyPart(tqparent, name)
{
// we need an instance
setInstance( KDiff3PartFactory::instance() );
// this should be your custom internal widget
m_widget = new KDiff3App( parentWidget, widgetName, this );
// This hack is necessary to avoid a crash when the program terminates.
m_bIsShell = dynamic_cast<KParts::MainWindow*>(parentWidget)!=0;
// notify the part that this is our internal widget
setWidget(m_widget);
// create our actions
//KStdAction::open(this, TQT_SLOT(fileOpen()), actionCollection());
//KStdAction::saveAs(this, TQT_SLOT(fileSaveAs()), actionCollection());
//KStdAction::save(this, TQT_SLOT(save()), actionCollection());
setXMLFile("kdiff3_part.rc");
// we are read-write by default
setReadWrite(true);
// we are not modified since we haven't done anything yet
setModified(false);
}
KDiff3Part::~KDiff3Part()
{
if ( m_widget!=0 && ! m_bIsShell )
{
m_widget->saveOptions( m_widget->isPart() ? instance()->config() : kapp->config() );
}
}
void KDiff3Part::setReadWrite(bool /*rw*/)
{
// ReadWritePart::setReadWrite(rw);
}
void KDiff3Part::setModified(bool /*modified*/)
{
/*
// get a handle on our Save action and make sure it is valid
KAction *save = actionCollection()->action(KStdAction::stdName(KStdAction::Save));
if (!save)
return;
// if so, we either enable or disable it based on the current
// state
if (modified)
save->setEnabled(true);
else
save->setEnabled(false);
// in any event, we want our tqparent to do it's thing
ReadWritePart::setModified(modified);
*/
}
static void getNameAndVersion( const TQString& str, const TQString& lineStart, TQString& fileName, TQString& version )
{
if ( str.left( lineStart.length() )==lineStart && fileName.isEmpty() )
{
unsigned int pos = lineStart.length();
while ( pos<str.length() && (str[pos]==' ' || str[pos]=='\t') ) ++pos;
unsigned int pos2 = str.length()-1;
while ( pos2>pos )
{
while (pos2>pos && str[pos2]!=' ' && str[pos2]!='\t') --pos2;
fileName = str.mid( pos, pos2-pos );
std::cerr << "KDiff3: " << fileName.latin1() << std::endl;
if ( FileAccess(fileName).exists() ) break;
--pos2;
}
int vpos = str.tqfindRev("\t", -1);
if ( vpos>0 && vpos>(int)pos2 )
{
version = str.mid( vpos+1 );
while( !version.right(1)[0].isLetterOrNumber() )
version.truncate( version.length()-1 );
}
}
}
bool KDiff3Part::openFile()
{
// m_file is always local so we can use TQFile on it
std::cerr << "KDiff3: " << m_file.latin1() << std::endl;
TQFile file(m_file);
if (file.open(IO_ReadOnly) == false)
return false;
// our example widget is text-based, so we use TQTextStream instead
// of a raw TQDataStream
TQTextStream stream(&file);
TQString str;
TQString fileName1;
TQString fileName2;
TQString version1;
TQString version2;
while (!stream.eof() && (fileName1.isEmpty() || fileName2.isEmpty()) )
{
str = stream.readLine() + "\n";
getNameAndVersion( str, "---", fileName1, version1 );
getNameAndVersion( str, "+++", fileName2, version2 );
}
file.close();
if ( fileName1.isEmpty() && fileName2.isEmpty() )
{
KMessageBox::sorry(m_widget, i18n("Couldn't find files for comparison."));
return false;
}
FileAccess f1(fileName1);
FileAccess f2(fileName2);
if ( f1.exists() && f2.exists() && fileName1!=fileName2 )
{
m_widget->slotFileOpen2( fileName1, fileName2, "", "", "", "", "", 0 );
return true;
}
else if ( version1.isEmpty() && f1.exists() )
{
// Normal patch
// patch -f -u --ignore-whitespace -i [inputfile] -o [outfile] [patchfile]
TQString tempFileName = FileAccess::tempFileName();
TQString cmd = "patch -f -u --ignore-whitespace -i \"" + m_file +
"\" -o \""+tempFileName + "\" \"" + fileName1+ "\"";
::system( cmd.ascii() );
m_widget->slotFileOpen2( fileName1, tempFileName, "", "",
"", version2.isEmpty() ? fileName2 : "REV:"+version2+":"+fileName2, "", 0 ); // alias names
// std::cerr << "KDiff3: f1:" << fileName1.latin1() <<"<->"<<tempFileName.latin1()<< std::endl;
FileAccess::removeTempFile( tempFileName );
}
else if ( version2.isEmpty() && f2.exists() )
{
// Reverse patch
// patch -f -u -R --ignore-whitespace -i [inputfile] -o [outfile] [patchfile]
TQString tempFileName = FileAccess::tempFileName();
TQString cmd = "patch -f -u -R --ignore-whitespace -i \"" + m_file +
"\" -o \""+tempFileName + "\" \"" + fileName2+"\"";
::system( cmd.ascii() );
m_widget->slotFileOpen2( tempFileName, fileName2, "", "",
version1.isEmpty() ? fileName1 : "REV:"+version1+":"+fileName1, "", "", 0 ); // alias name
// std::cerr << "KDiff3: f2:" << fileName2.latin1() <<"<->"<<tempFileName.latin1()<< std::endl;
FileAccess::removeTempFile( tempFileName );
}
else if ( !version1.isEmpty() && !version2.isEmpty() )
{
std::cerr << "KDiff3: f1/2:" << fileName1.latin1() <<"<->"<<fileName2.latin1()<< std::endl;
// Assuming that files are on CVS: Try to get them
// cvs update -p -r [REV] [FILE] > [OUTPUTFILE]
TQString tempFileName1 = FileAccess::tempFileName();
TQString cmd1 = "cvs update -p -r " + version1 + " \"" + fileName1 + "\" >\""+tempFileName1+"\"";
::system( cmd1.ascii() );
TQString tempFileName2 = FileAccess::tempFileName();
TQString cmd2 = "cvs update -p -r " + version2 + " \"" + fileName2 + "\" >\""+tempFileName2+"\"";
::system( cmd2.ascii() );
m_widget->slotFileOpen2( tempFileName1, tempFileName2, "", "",
"REV:"+version1+":"+fileName1,
"REV:"+version2+":"+fileName2,
"", 0
);
// std::cerr << "KDiff3: f1/2:" << tempFileName1.latin1() <<"<->"<<tempFileName2.latin1()<< std::endl;
FileAccess::removeTempFile( tempFileName1 );
FileAccess::removeTempFile( tempFileName2 );
return true;
}
else
{
KMessageBox::sorry(m_widget, i18n("Couldn't find files for comparison."));
}
return true;
}
bool KDiff3Part::saveFile()
{
/* // if we aren't read-write, return immediately
if (isReadWrite() == false)
return false;
// m_file is always local, so we use TQFile
TQFile file(m_file);
if (file.open(IO_WriteOnly) == false)
return false;
// use TQTextStream to dump the text to the file
TQTextStream stream(&file);
//stream << m_widget->text();
file.close();
return true;
*/
return false; // Not implemented
}
// It's usually safe to leave the factory code alone.. with the
// notable exception of the KAboutData data
#include <kaboutdata.h>
#include <klocale.h>
KInstance* KDiff3PartFactory::s_instance = 0L;
KAboutData* KDiff3PartFactory::s_about = 0L;
KDiff3PartFactory::KDiff3PartFactory()
: KParts::Factory()
{
}
KDiff3PartFactory::~KDiff3PartFactory()
{
delete s_instance;
delete s_about;
s_instance = 0L;
}
KParts::Part* KDiff3PartFactory::createPartObject( TQWidget *parentWidget, const char *widgetName,
TQObject *tqparent, const char *name,
const char *classname, const TQStringList&/*args*/ )
{
// Create an instance of our Part
KDiff3Part* obj = new KDiff3Part( parentWidget, widgetName, tqparent, name );
// See if we are to be read-write or not
if (TQCString(classname) == "KParts::ReadOnlyPart")
obj->setReadWrite(false);
return obj;
}
KInstance* KDiff3PartFactory::instance()
{
if( !s_instance )
{
s_about = new KAboutData("kdiff3part", I18N_NOOP("KDiff3Part"), VERSION);
s_about->addAuthor("Joachim Eibl", 0, "joachim.eibl at gmx.de");
s_instance = new KInstance(s_about);
}
return s_instance;
}
extern "C"
{
void* init_libkdiff3part()
{
return new KDiff3PartFactory;
}
}
// Suppress warning with --enable-final
#undef VERSION
#include "kdiff3_part.moc"