// =================================================================================
//	CDragTask.h				©1995 J. Rodden, DD/MF & Associates. All rights reserved
// =================================================================================
// You do not need to inherit this class.
//
// LDragTask gives us general drag functionality and behaviour.  CDragTask exists so
// that we can add behaviour specific to dragging our items without having to inherit
// from LDragTask anymore.
//
// CDragTask actually acts as a stub object, it passes the work onto the object being
// dragged so that all drag manager code can be isolated in the object being dragged
// or its owner and you don't ever have to deal with an LDragTask again.
//
// By using CDragTask and overriding AddFlavors and MakeDragRegion in the object 
// being dragged, you can (a) include as many flavors of an item as you want, (b) 
// define your own outline to replace the generic rectangle that LDragTask provides,
// (c) arrange to send drag data on demand by calling InstallDragSendData when
// adding flavors (and installing null data in the drag) and overriding DoSendDragData
// for the object being dragged, and (d) override the drag manager's default behaviors
// for DragInput and DragDrawing by calling InstallDragInput or InstallDragDrawing
// and overriding DoDragInput or DoDragDrawing respectively.
// =================================================================================

#pragma once

#include <LDragTask.h>

class CDragItem;

class CDragTask : public LDragTask {
public:
					CDragTask(const EventRecord &inEventRecord,
								CDragItem*			inDragItem = nil);
								
					CDragTask(const EventRecord&	inEventRecord,
								const Rect*			inItemRect,
								ItemReference		inItemRef,
								CDragItem*			inDragItem = nil);
								
protected:
	virtual void	AddFlavors (DragReference inDragRef);
	virtual void	MakeDragRegion (DragReference inDragRef, RgnHandle inDragRegion);
	
	virtual void	InstallDragSendData();
	virtual	void	InstallDragInput();
	virtual	void	InstallDragDrawing();

private:
	CDragItem*		dragItem;
	
};