You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
3.3 KiB
106 lines
3.3 KiB
/* 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.
|
|
*/
|
|
|
|
#ifndef TDEMULTIPLEDRAG_H
|
|
#define TDEMULTIPLEDRAG_H
|
|
|
|
#ifndef QT_NO_DRAGANDDROP
|
|
|
|
#include <tqdragobject.h>
|
|
#include <tqvaluelist.h>
|
|
#include "tdelibs_export.h"
|
|
|
|
class KMultipleDragPrivate;
|
|
/**
|
|
* This class makes it easy for applications to provide a drag object
|
|
* (for drag-n-drop or for clipboard) that has several representations
|
|
* of the same data, under different formats.
|
|
*
|
|
* Instead of creating a specific class for each case (as would otherwise
|
|
* be necessary), you can simply create independent drag objects (e.g.
|
|
* a TQImageDrag object and a KURLDrag object), and bundle them together
|
|
* using KMultipleDrag.
|
|
*
|
|
* Sample code for this:
|
|
*
|
|
* \code
|
|
* KMultipleDrag *drag = new KMultipleDrag( parentWidget );
|
|
* drag->addDragObject( new TQImageDrag( someQImage, 0 ) );
|
|
* drag->addDragObject( new KURLDrag( someKURL, 0 ) );
|
|
* drag->drag();
|
|
* \endcode
|
|
*
|
|
* Note that the drag objects added to the multiple drag become owned by it.
|
|
* For that reason their parent should be 0.
|
|
*
|
|
* @author David Faure <faure@kde.org>
|
|
*/
|
|
class TDECORE_EXPORT KMultipleDrag : public TQDragObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
/**
|
|
* Create a new KMultipleDrag object.
|
|
* @param dragSource the parent object which is the source of the data,
|
|
* 0 for a parent-less object
|
|
* @param name the name of the object, can be 0
|
|
*/
|
|
KMultipleDrag( TQWidget *dragSource = 0, const char *name = 0 );
|
|
|
|
/**
|
|
* Call this to add each underlying drag object to the multiple drag object.
|
|
* The drag object should not have a parent because the multiple drag object
|
|
* will own it.
|
|
*
|
|
* @param dragObject the drag object to add. Should have no parent object.
|
|
*/
|
|
void addDragObject( TQDragObject *dragObject );
|
|
|
|
/**
|
|
* Returns the data of a drag object with that supports the given
|
|
* mime type.
|
|
* @param mime the mime type to search
|
|
* @return the data, or a null byte array if not found
|
|
* @reimp
|
|
*/
|
|
virtual TQByteArray encodedData( const char *mime ) const;
|
|
|
|
/**
|
|
* Returns the @p i'th supported format, or 0.
|
|
* @param i the number of the format to check
|
|
* @return the format with the number @p i, or 0 otherwise
|
|
* @reimp
|
|
*/
|
|
virtual const char* format( int i ) const;
|
|
|
|
protected:
|
|
// KDE4: make private
|
|
TQPtrList<TQDragObject> m_dragObjects;
|
|
TQValueList<int> m_numberFormats;
|
|
protected:
|
|
virtual void virtual_hook( int id, void* data );
|
|
private:
|
|
KMultipleDragPrivate* d;
|
|
};
|
|
|
|
#endif // QT_NO_DRAGANDDROP
|
|
|
|
#endif // TDEMULTIPLEDRAG_H
|