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KMultipleDrag Class Reference

#include <kmultipledrag.h>

List of all members.

Public Methods
	KMultipleDrag (QWidget *dragSource=0L, const char *name=0L)
void	addDragObject (QDragObject *dragObject)
Protected Methods
virtual QByteArray	encodedData (const char *mime) const
virtual const char *	format (int i) const

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Detailed Description

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 QImageDrag object and a KURLDrag object), and bundle them together using KMultipleDrag.

Sample code for this:

 KMultipleDrag *drag = new KMultipleDrag( parentWidget );
 drag->addDragObject( new QImageDrag( someQImage, 0L ) );
 drag->addDragObject( KURLDrag::newDrag( someKURL, 0L ) );
 drag->drag();
 

Note that the drag objects added to the multiple drag become owned by it. For that reason their parent should be 0L.

Author:

David Faure <david@mandrakesoft.com>

Definition at line 53 of file kmultipledrag.h.

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Constructor & Destructor Documentation

KMultipleDrag::KMultipleDrag (  QWidget *    dragSource = 0L, const char *    name = 0L )

Create a new KMultipleDrag object. Parameters: dragSource  the parent object which is the source of the data, 0 for a parent-less object name  the name of the object, can be 0

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Member Function Documentation

void KMultipleDrag::addDragObject (  QDragObject *    dragObject )

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. Parameters: dragObject  the drag object to add. Should have no parent object.

virtual QByteArray KMultipleDrag::encodedData (  const char *    mime )  const [protected, virtual]

Returns the data of a drag object with that supports the given mime type. Parameters: mime  the mime type to search Returns: the data, or a null byte array if not found

virtual const char* KMultipleDrag::format (  int    i )  const [protected, virtual]

Returns the i'th supported format, or 0. Parameters: i  the number of the format to check Returns: the format with the number i, or 0 otherwise

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The documentation for this class was generated from the following file:

• kmultipledrag.h

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