SyncOutputInstance.h

#ifndef __SyncOutputInstance_h__
#define __SyncOutputInstance_h__

#include <maya/MDagModifier.h>
#include <maya/MPlug.h>

#include "SubCommand.h"

class SyncOutputInstance : public SubCommand
{
    public:
        SyncOutputInstance(
                const MPlug &outputPlug,
                const int parentMultiIndex,
                const MObject &assetNodeObj
                );
        virtual ~SyncOutputInstance();

        virtual MStatus doIt();
        virtual MStatus undoIt();
        virtual MStatus redoIt();

        virtual bool isUndoable() const;

    protected:
        MStatus createOutput();

        bool instanceObjects(MObject searchRoot,
                                MObject instancerTransform,
                                 int pointIndex,
                                 const MString & objectToInstanceName,
                                 const MString & houdiniInstanceAttr,
                                 const MString & houdiniNameAttr);

        void  instanceObject(MDagPath & objToInstance,
                                MObject instancerTransform,
                                int pointIndex);

        bool stringStartsWith(const MString & string, const MString & startsWith);

    protected:
        //This is the output plug from the asset node that is connected
        //to the instancer node (eg. assetNode.instancers[0])
        const MPlug myOutputPlug;

        //the transform of the HAPI Asset
        const MObject myAssetNodeObj;

        //the multi-index of the parent attribute.  We'll need this
        //to effectively evaluate any of the multi-attributes
        const int myParentMultiIndex;

        MDagModifier myDagModifier;
};

#endif