tvnode.h

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/**********************************************************************
 *<
    FILE: tvnode.h

    DESCRIPTION: Track View Node Class

    CREATED BY: Rolf Berteig

    HISTORY: 11-14-96

 *> Copyright (c) 1996, All Rights Reserved.
 **********************************************************************/


#pragma once
#include "maxheap.h"
#include "ref.h"
// forward declarations
class Control;

#define TVNODE_CLASS_ID Class_ID(0x8d73b8aa, 0x90f2ee71)

// Default position for appending
#define TVNODE_APPEND -1


// TrackViewNodes can contain one or more sub nodes or controllers.
// Sub-nodes and controllers are identified by a unique ID in the
// form of a Class_ID variable. This does not necessarily have to
// be the class ID of an existing plug-in, however plug-ins may
// wish to use thier class ID for any items they add to be sure they
// are unique.
//
// The Interface class provides access to the root track view node.
// From this node, new nodes can be added. There are two defined
// sub nodes:

#define GLOBAL_VAR_TVNODE_CLASS_ID          Class_ID(0xb27e9f2a, 0x73fad370)
#define VIDEO_POST_TVNODE_CLASS_ID          Class_ID(0x482b8d30, 0xb72c8511)
#define TRACK_SELECTION_SET_MGR_CLASS_ID    Class_ID(0x77a71ca2, 0x670c632d)
#define TRACK_SELECTION_SET_CLASS_ID        Class_ID(0x6eb33def, 0x20344f6a)

// These can be retreived by calling GetNode() on the track view root
// node and passing in one of the above IDs.


// These can be registered with a TVNode to intercept reference notifications
class TVNodeNotify: public MaxHeapOperators {
    public:
        virtual RefResult NotifyRefChanged(
            Interval changeInt, RefTargetHandle hTarget, 
            PartID& partID,  RefMessage message)=0;
    };
 
class ITrackViewNode : public ReferenceTarget {
    public:
        virtual void AddNode(ITrackViewNode *node, MCHAR *name, Class_ID cid, int pos=TVNODE_APPEND)=0;
        virtual void AddController(Control* c, MCHAR* name, Class_ID cid, int pos=TVNODE_APPEND)=0;
        virtual int FindItem(Class_ID cid)=0;
        virtual void RemoveItem(int i)=0;
        virtual void RemoveItem(Class_ID cid)=0;
        virtual Control *GetController(int i)=0;
        virtual Control *GetController(Class_ID cid)=0;
        virtual ITrackViewNode *GetNode(int i)=0;
        virtual ITrackViewNode *GetNode(Class_ID cid)=0;
        virtual int NumItems()=0;
        virtual void SwapPositions(int i1, int i2)=0;
        virtual MCHAR *GetName(int i)=0;
        virtual void SetName(int i,MCHAR *name)=0;
        virtual void RegisterTVNodeNotify(TVNodeNotify *notify)=0;
        virtual void UnRegisterTVNodeNotify(TVNodeNotify *notify)=0;
//watje this will prevent children from showing up in the TV
        virtual void HideChildren(BOOL chide)=0;
    };

CoreExport ITrackViewNode *CreateITrackViewNode(BOOL hidden=FALSE);