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KMultipleDrag Class Reference

#include <kmultipledrag.h>

Inherits TQDragObject.

Public Member Functions

 KMultipleDrag (TQWidget *dragSource=0, const char *name=0)
 
void addDragObject (TQDragObject *dragObject)
 
virtual TQByteArray encodedData (const char *mime) const
 
virtual const char * format (int i) const
 

Protected Member Functions

virtual void virtual_hook (int id, void *data)
 

Protected Attributes

TQPtrList< TQDragObject > m_dragObjects
 
TQValueList< int > m_numberFormats
 

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

Sample code for this:

KMultipleDrag *drag = new KMultipleDrag( parentWidget );
drag->addDragObject( new TQImageDrag( someQImage, 0 ) );
drag->addDragObject( new KURLDrag( someKURL, 0 ) );
drag->drag();

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.nosp@m.@kde.nosp@m..org

Definition at line 54 of file kmultipledrag.h.

Constructor & Destructor Documentation

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

Create a new KMultipleDrag object.

Parameters
dragSourcethe parent object which is the source of the data, 0 for a parent-less object
namethe name of the object, can be 0

Definition at line 25 of file kmultipledrag.cpp.

Member Function Documentation

void KMultipleDrag::addDragObject ( TQDragObject *  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
dragObjectthe drag object to add. Should have no parent object.

Definition at line 31 of file kmultipledrag.cpp.

TQByteArray KMultipleDrag::encodedData ( const char *  mime) const
virtual

Returns the data of a drag object with that supports the given mime type.

Parameters
mimethe mime type to search
Returns
the data, or a null byte array if not found
Reimplemented from superclass.

Definition at line 42 of file kmultipledrag.cpp.

const char * KMultipleDrag::format ( int  i) const
virtual

Returns the i'th supported format, or 0.

Parameters
ithe number of the format to check
Returns
the format with the number i, or 0 otherwise
Reimplemented from superclass.

Definition at line 58 of file kmultipledrag.cpp.


The documentation for this class was generated from the following files:
  • kmultipledrag.h
  • kmultipledrag.cpp

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