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/***************************************************************************
kbufferdrag.cpp - description
-------------------
begin : Mon Jul 07 2003
copyright : (C) 2003 by Friedrich W. H. Kossebau
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License version 2 as published by the Free Software Foundation. *
* *
***************************************************************************/
// qt specific
#include <qcstring.h>
#include <qtextcodec.h>
// kde specific
#include <kglobal.h>
#include <klocale.h>
// lib specific
#include "kbordercoltextexport.h"
#include "koffsetcoltextexport.h"
#include "kvaluecoltextexport.h"
#include "kcharcoltextexport.h"
#include "kcharcodec.h"
#include "kbufferdrag.h"
using namespace std;
using namespace KHE;
static const char OctetStream[] = "application/octet-stream";
static const char TextPlainUTF8[] = "text/plain;charset=UTF-8";
static const char TextPlain[] = "text/plain";
static const char TextPlainLocalStub[] = "text/plain;charset=";
//static const char *BaseTypes[3] = { OctetStream, TextPlainUTF8, TextPlain };
// creates the name for the local text/plain
static const char *localTextPlain()
{
static QCString TextPlainLocal;
if( TextPlainLocal.isNull() )
{
TextPlainLocal = QCString(KGlobal::locale()->encoding()).lower();
// remove the whitespaces
int s;
while( (s=TextPlainLocal.find(' ')) >= 0 )
TextPlainLocal.remove( s, 1 );
TextPlainLocal.prepend( TextPlainLocalStub );
}
return TextPlainLocal;
}
// tries to create a codec by the given charset description
static QTextCodec* codecForCharset( const QCString& Desc )
{
int i = Desc.find( "charset=" );
if( i >= 0 )
{
QCString CharSetName = Desc.mid( i+8 );
// remove any further attributes
if( (i=CharSetName.find( ';' )) >= 0 )
CharSetName = CharSetName.left( i );
// try to find codec
return QTextCodec::codecForName( CharSetName );
}
// no charset=, use locale
return KGlobal::locale()->codecForEncoding();
}
KBufferDrag::KBufferDrag( const QByteArray &D, KCoordRange Range,
const KOffsetColumn *OC, const KValueColumn *HC, const KCharColumn *TC,
QChar SC, QChar UC, const QString &CN,
QWidget *Source, const char *Name )
:QDragObject( Source, Name ),
CoordRange( Range ),
NoOfCol( 0 ),
SubstituteChar( SC ),
UndefinedChar( UC ),
CodecName( CN )
{
setData( D );
// print column wise?
if( HC || TC )
{
if( OC )
{
Columns[NoOfCol++] = new KOffsetColTextExport( OC );
Columns[NoOfCol++] = new KBorderColTextExport();
}
if( HC )
Columns[NoOfCol++] = new KValueColTextExport( HC, Data.data(), CoordRange );
if( TC )
{
if( HC ) Columns[NoOfCol++] = new KBorderColTextExport();
Columns[NoOfCol++] = new KCharColTextExport( TC, Data.data(), CoordRange, CodecName );
}
}
}
KBufferDrag::~KBufferDrag()
{
for( uint i=0; i<NoOfCol; ++i )
delete Columns[i];
}
void KBufferDrag::setData( const QByteArray &D )
{
Data = D;
}
const char *KBufferDrag::format( int i ) const
{
return( i == 0 ? OctetStream :
i == 1 ? TextPlainUTF8 :
i == 2 ? TextPlain :
i == 3 ? localTextPlain() :
0 );
}
QByteArray KBufferDrag::encodedData( const char *Format ) const
{
if( Format != 0 )
{
// octet stream wanted?
if( qstrcmp(Format,OctetStream) == 0 )
return( Data );
// plain text wanted?
if( qstrncmp(Format,TextPlain,10) == 0 )
{
QCString Output;
QTextCodec *TextCodec = codecForCharset( QCString(Format).lower() );
if( TextCodec == 0 )
return Output;
QString Text;
// plain copy?
if( NoOfCol == 0 )
{
// duplicate the data and substitute all non-printable items with a space
KCharCodec *CharCodec = KCharCodec::createCodec( CodecName );
static const QChar Tab('\t');
static const QChar Return('\n');
uint Size = Data.size();
Text.setLength( Size );
for( uint i=0; i<Size; ++i )
{
KHEChar B = CharCodec->decode( Data[i] );
Text.at(i) = B.isUndefined() ? KHEChar(UndefinedChar) :
(!B.isPrint() && B != Tab && B != Return ) ? KHEChar(SubstituteChar) : B;
}
// clean up
delete CharCodec;
}
// formatted copy
else
{
// initialize: one for the line's newline \n
uint NeededChars = 1;
for( uint i=0; i<NoOfCol; ++i )
NeededChars += Columns[i]->charsPerLine();
// scale with the number of lines
NeededChars *= CoordRange.lines();
// find out needed size
Text.reserve( NeededChars );
// now fill
int l = CoordRange.start().line();
for( uint i=0; i<NoOfCol; ++i )
Columns[i]->printFirstLine( Text, l );
Text.append('\n');
for( ++l; l<=CoordRange.end().line(); ++l )
{
for( uint i=0; i<NoOfCol; ++i )
Columns[i]->printNextLine( Text );
Text.append('\n');
}
}
// generate the ouput
Output = TextCodec->fromUnicode( Text );
// fix end
//if( TextCodec->mibEnum() != 1000 )
//{
// Don't include NUL in size (QCString::resize() adds NUL)
// ((QByteArray&)Output).resize( Output.length() );
//}
return Output;
}
}
// return empty dummy
return QByteArray();
}
bool KBufferDrag::canDecode( const QMimeSource* Source )
{
bool c =( Source->provides(OctetStream) /*|| Source->provides(TextPlain)*/ );
return c;
// return( Source->provides(OctetStream) /*|| Source->provides(TextPlain)*/ );
}
bool KBufferDrag::decode( const QMimeSource* Source, QByteArray &Dest )
{
// Dest = Source->encodedData( MediaString );
// return Dest.size() != 0;
bool CanDecode = Source->provides( OctetStream );
if( CanDecode )
Dest = Source->encodedData( OctetStream );
return CanDecode;
}
#include "kbufferdrag.moc"
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