#include <qobject.h>

 #include <qmessagebox.h>

 #include <iostream>

 #include "file.h"

 #include "process.h"

 QString maskPath(QString p)

 {

 	// Change " " to "\ " to enable blanks in filenames

 	p=p.replace(QChar('&'),"\\&");

 	return p.replace(QChar(' '),"\\ ");

 }

 QString convertToRel (const QString &src, const QString &dst)

 {

 	QString s=src;

 	QString d=dst;

 	int i;

 	if (s==d) 

 	{

 		// Special case, we just need the name of the file,

 		// not the complete path

 		i=d.findRev ("/");

 		d=d.right (d.length()-i-1);

 	} else

 	{

 		// Find relative path from src to dst

 		// Remove the first "/"

 		if (s.section ("/",0,0).isEmpty()) 

 		{

 			s=s.right (s.length()-1);

 			d=d.right (d.length()-1);

 		}

 		// remove identical left parts

 		while (s.section("/",0,0) == d.section("/",0,0) ) 

 		{

 			i=s.find ("/");

 			s=s.right (s.length()-i-1);

 			d=d.right (d.length()-i-1);

 		}

 		// Now take care of paths where we have to go back first

 		int srcsep=s.contains("/");

 		int dstsep=d.contains("/");

 		if (srcsep <=  dstsep )

 		{

 			// find path to go up first and then back to dst

 			i=1;

 			while (i<=srcsep) 

 			{

 				d="../"+d;

 				i++;

 			}	

 		}

 	}	

 	return d;

 }

 QString makeUniqueDir (QString s)

 {

 	// Create unique directory e.g. s="/tmp/vym-XXXXXX"

 	// Convert QString to string first

 	char *p;

 	int bytes=s.length();

 	p=(char*) malloc (bytes+1);

 	int i;

 	for (i=0;i<bytes;i++)

 		p[i]=s.at(i).latin1();

 	p[bytes]=0;	

 	QString r=mkdtemp (p);

 	free (p);

 	return r;

 }

 void removeDir(QDir d)

 {

 	if (d.path().left(4)!="/tmp")

 	{

 		// This _should_ not be necessary, but proved to be useful ;-)

 		qWarning ("file.cpp::removeDir should remove "+d.path()+" - aborted.");

 		return;

 	}

 	// Traverse directories

 	d.setFilter( QDir::Dirs| QDir::Hidden | QDir::NoSymLinks );

 	const QFileInfoList *dirlist = d.entryInfoList();

 	QFileInfoListIterator itdir( *dirlist );

 	QFileInfo *fi;

 	while ( (fi = itdir.current()) != 0 ) 

 	{

 		if (fi->fileName() != "." && fi->fileName() != ".." )

 		{

 			if ( !d.cd(fi->fileName()) ) 

 				qWarning ("removeDir() cannot find the directory "+fi->fileName());

 			else 

 			{

 				// Recursively remove subdirs

 				removeDir (d);

 				d.cdUp();

 			}

 		}	

 		++itdir;

 	}		

 	// Traverse files

 	d.setFilter( QDir::Files| QDir::Hidden | QDir::NoSymLinks );

 	const QFileInfoList *filelist = d.entryInfoList();

 	QFileInfoListIterator itfile( *filelist );

 	while ( (fi = itfile.current()) != 0 ) 

 	{

 		QFile (fi->filePath()).remove();

 		++itfile;

 	}	

 	if (!d.rmdir(d.path()))

 		qWarning ("removeDir("+d.path()+") failed!");

 }		

 void makeSubDirs (const QString &s)

 {

 	QDir d(s);

 	d.mkdir(s);

 	d.mkdir ("images");	

 	d.mkdir ("flags");	

 }

 ErrorCode zipDir (const QDir &zipDir, const QString &zipName)

 {

 	ErrorCode err=success;

 	// zip the temporary directory

 	Process *zipProc=new Process ();

 	zipProc->clearArguments();

 	zipProc->setWorkingDirectory (QDir(zipDir));

 	zipProc->addArgument ("zip");

 	zipProc->addArgument ("-r");

 	zipProc->addArgument (zipName);

 	zipProc->addArgument (".");

 	if (!zipProc->start() )

 	{	

 		// zip could not be started

 		QMessageBox::critical( 0, QObject::tr( "Critical Error" ),

 					   QObject::tr("Couldn't start zip to compress data."));

 		err=aborted;

 	} else

 	{

 		// zip could be started

 		zipProc->waitFinished();

 		if (!zipProc->normalExit() )

 		{

 			QMessageBox::critical( 0, QObject::tr( "Critical Error" ),

 						   QObject::tr("zip didn't exit normally")+

 						   "\n" + zipProc->getErrout());

 			err=aborted;

 		} else

 		{

 			if (zipProc->exitStatus()>0)

 			{

 				QMessageBox::critical( 0, QObject::tr( "Critical Error" ),

 						   QString("zip exit code:  %1").arg(zipProc->exitStatus() )+

 						   "\n" + zipProc->getErrout() );

 				err=aborted;

 			}

 		}

 	}	// zip could be started

 	return err;	

 }

 ErrorCode unzipDir (const QDir &zipDir, const QString &zipName)

 {

 	ErrorCode err=success;

 	// Try to unzip file

 	Process *zipProc=new Process ();

 	zipProc->clearArguments();

 	zipProc->setWorkingDirectory (zipDir);

 	zipProc->addArgument ("unzip");

 	zipProc->addArgument ("-o");	// overwrite existing files!

 	zipProc->addArgument (zipName );

 	zipProc->addArgument ("-d");

 	zipProc->addArgument (zipDir.path());

 	if (!zipProc->start() )

 	{

 		QMessageBox::critical( 0, QObject::tr( "Critical Error" ),

 					   QObject::tr("Couldn't start unzip to decompress data."));

 		err=aborted;

 	} else

 	{

 		zipProc->waitFinished();

 		if (!zipProc->normalExit() )

 		{

 			QMessageBox::critical( 0,QObject::tr( "Critical Error" ),

 						   QObject::tr("unzip didn't exit normally") +

 						   zipProc->getErrout() );

 			err=aborted;

 		} else

 		{

 			if (zipProc->exitStatus()>0)

 			{

 				if (zipProc->exitStatus()==9)

 					// no zipped file, but maybe .xml or old version? Try again.

 					err=nozip;

 				else	

 				{

 					QMessageBox::critical( 0, QObject::tr( "Critical Error" ),

 								   QString("unzip exit code:  %1").arg(zipProc->exitStatus() ) +

 								   zipProc->getErrout() );

 					err=aborted;

 				}

 			} 

 		}

 	}

 	return err;	

 }

 bool loadStringFromDisk (const QString &fname, QString &s)

 {

 	s="";

 	QFile file ( fname);

 	if ( !file.open( IO_ReadOnly ) ) return false;

 	QTextStream ts( &file );

 	ts.setEncoding (QTextStream::UnicodeUTF8);

 	while ( !ts.atEnd() ) 

 		s+=ts.readLine()+"\n"; 

 	file.close();

 	return true;

 }

 bool saveStringToDisk (const QString &fname, const QString &s)

 {

 	QFile file( fname);

 	file.setName ( fname);

 	if ( !file.open( IO_WriteOnly ) ) 

 	{

 		file.close();

 		return false;

 	}	

 	// Write it finally, and write in UTF8, no matter what 

 	QTextStream ts( &file );

 	ts.setEncoding (QTextStream::UnicodeUTF8);

 	ts << s;

 	file.close();

 	return true;

 }

 ImagePreview::ImagePreview (QWidget *par=0): QLabel (par)

 {

 	fdia=(QFileDialog*)par;

 }

 void ImagePreview::previewUrl( const QUrl &u )

 {

     QString path = u.path();

     QPixmap pix( path );

     if ( pix.isNull() )

 	{

 		// Strange: If we have fd->setMode (QFileDialog::ExistingFiles)

 		// in the filedialog, then there are 3 calls to previewURL 

 		// for each selection. And only the first is the actual selected file

 		// while the following 2 point to the directory above the current one.

 		// So here's my workaround:

 		if (fdia && fdia->selectedFiles().count()==0)

 			setText( QObject::tr("This is not an image.") );

 		if (fdia &&fdia->selectedFiles().count()>1)

 			setText( QObject::tr("Sorry, no preview for\nmultiple selected files.") );

 	}	

     else

 	{

 		float max_w=300;

 		float max_h=300;

 		float r;

 		if (pix.width()>max_w)

 		{

 			r=max_w / pix.width();

 			pix.resize(qRound(pix.width()*r), qRound(pix.height()*r));

 			// FIXME not a resize, but a shrink/enlarge is needed here...

 		}

 		if (pix.height()>max_h)

 		{

 			r=max_h / pix.height();

 			pix.resize(qRound(pix.width()*r), qRound(pix.height()*r));

 			// FIXME not a resize, but a shrink/enlarge is needed here...

 		}

         setPixmap( pix );

 	}	

 }