kmultipledrag.cpp
/* This file is part of the KDE project
Copyright (C) 2001 David Faure <faure@kde.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "kmultipledrag.h"
#include "kdebug.h"
#ifndef QT_NO_DRAGANDDROP
KMultipleDrag::KMultipleDrag( QWidget *dragSource, const char *name )
: QDragObject( dragSource, name )
{
m_dragObjects.setAutoDelete( true );
}
void KMultipleDrag::addDragObject( QDragObject *dragObject )
{
//kdDebug() << "KMultipleDrag::addDragObject" << endl;
m_dragObjects.append( dragObject );
// We need to find out how many formats this dragObject supports
int i = 0;
while ( dragObject->format( i ) )
++i;
m_numberFormats.append( i ); // e.g. if it supports two formats, 0 and 1, store 2.
}
QByteArray KMultipleDrag::encodedData( const char *mime ) const
{
//kdDebug() << "KMultipleDrag::encodedData " << mime << endl;
// Iterate over the drag objects, and find the format in the right one
QPtrListIterator<QDragObject> it( m_dragObjects );
for ( ; it.current(); ++it )
{
for ( int i = 0; it.current()->format( i ); ++i )
{
if ( ::qstrcmp( it.current()->format( i ), mime ) == 0 )
return it.current()->encodedData( mime );
}
}
return QByteArray();
}
const char* KMultipleDrag::format( int i ) const
{
//kdDebug() << "KMultipleDrag::format " << i << endl;
// example: m_numberFormats: 1, 4
// m_dragObjects: storeddrag, textdrag
// i=0 -> storeddrag->format( 0 )
// i=1 -> textdrag->format( 0 )
// i=2 -> textdrag->format( 1 )
// etc.
QValueList<int>::ConstIterator nit = m_numberFormats.begin();
QValueList<int>::ConstIterator nend = m_numberFormats.end();
QPtrListIterator<QDragObject> it( m_dragObjects );
for ( ; nit != nend && i >= *nit ; ++nit, ++it )
i -= *nit;
if ( it.current() )
return it.current()->format( i );
return 0;
}
void KMultipleDrag::virtual_hook( int, void* )
{ /*BASE::virtual_hook( id, data );*/ }
#include "kmultipledrag.moc"
#endif
KMultipleDrag::encodedData
virtual QByteArray encodedData(const char *mime) const
Returns the data of a drag object with that supports the given mime type.
Definition: kmultipledrag.cpp:42
KMultipleDrag::addDragObject
void addDragObject(QDragObject *dragObject)
Call this to add each underlying drag object to the multiple drag object.
Definition: kmultipledrag.cpp:31
KMultipleDrag::KMultipleDrag
KMultipleDrag(QWidget *dragSource=0, const char *name=0)
Create a new KMultipleDrag object.
Definition: kmultipledrag.cpp:25
KMultipleDrag::format
virtual const char * format(int i) const
Returns the i'th supported format, or 0.
Definition: kmultipledrag.cpp:58

KDE Home | KDE Accessibility Home | Description of Access Keys