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Metario
2017-04-17 06:17:10 -06:00
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lib/maxsdk70/include/iBlockMgr.h Executable file
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/**********************************************************************
FILE: IBlockMgr.h
DESCRIPTION: Public interface for working with blocks (the same
concept as Autocad Blocks)
CREATED BY: Attila Szabo, Discreet
HISTORY: - created Aug 08, 2002
*> Copyright (c) 1998-2002, All Rights Reserved.
**********************************************************************/
#ifndef _IBLOCKMGR_H_
#define _IBLOCKMGR_H_
#include "iFnPub.h"
#include "maxtypes.h"
// --- Forward declaration
class IBlockRefComponent;
class INode;
// --- Interface IDs
#define BLOCK_MGR_INTERFACE Interface_ID(0x327d3c71, 0x542b7dac)
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// class IBlockMgr
//
// This interface allows different parts of the system (max) and plugins
// to work with blocks
//
// Right now, it provides very limitted functionality, the plan being to
// extend it in the future as we identify functionality that can be factored
// out from FileLink into this object.
//________________________________________________________________________
class IBlockMgr : public FPStaticInterface
{
public:
// Checks whether a node is a block instance. If yes, the method it returns
// a pointer to the block interface.
// INode& n - is this node a block instance?
virtual IBlockRefComponent* IsInstance(INode& n) const = 0;
// Retrieves instances of a block.
// INode& source - The block whose instances are to be retrieved.
// INodeTab& instances - An array of nodes representing the instances the
// given block. This array is cleared before collection of instances
// starts. The original object is also included in this array since every
// object can be thought of as having at least one instance.
// Return value - The number of instances found. There's always at least 1 instance found
virtual unsigned long GetInstances(INode& source, INodeTab& instances) const = 0;
// Extends a node with a IBlockRefComponent interface.
// If the node is a block component already, it does nothing
virtual IBlockRefComponent* MakeBlockRefComponent(INode& n) const = 0;
// Removes the IBlockRefComponent interface from the node
virtual bool RemoveBlockRefComponent(INode& n) const = 0;
// Returns the top block of the component passed in as param.
virtual INode* GetTopBlock(INode& n) const = 0;
// For each block in the node array that has components,
// adds these components to the array of nodes to be selected
virtual void ExpandSelection(INodeTab& nodes) const = 0;
// --- File I/O
virtual IOResult Save(ISave* isave) const = 0;
virtual IOResult Load(ILoad* iload) = 0;
static IBlockMgr* GetBlockMgr()
{
return static_cast<IBlockMgr*>(GetCOREInterface(BLOCK_MGR_INTERFACE));
}
};
#endif //_IBLOCKMGR_H_