meshReorderCmd.h

//-
// ==========================================================================
// Copyright 1995,2006,2008 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk
// license agreement provided at the time of installation or download,
// or which otherwise accompanies this software in either electronic
// or hard copy form.
// ==========================================================================
//+

// 
// meshReorderCmd.h
// 
// Description:
//      Command to reindex a polygon mesh based on a used defined starting face
//
// Usage:
//      meshOrder mesh.vtx[5] mesh.vtx[23] mesh.vtx[9] 
//
// See Also:
//      meshReorderTool.cpp : this context allows you to interactively pick vertices and invoke this command
// 

#ifndef _MESH_REORDER_CMD_H_
#define _MESH_REORDER_CMD_H_

#include <maya/MArgList.h>
#include <maya/MPxCommand.h>
#include <maya/MSelectionList.h>
#include <maya/MIntArray.h>
#include <maya/MItMeshEdge.h>
#include <maya/MItMeshPolygon.h>
#include <maya/MDagPath.h>
#include <maya/MFloatPointArray.h>
#include <maya/MStringArray.h>
#include <maya/MFnMesh.h>
#include <maya/MDGModifier.h>

class MColorArray;
class MFloatArray;

// MAIN CLASS DECLARATION FOR THE MEL COMMAND:
class meshReorderCommand : public MPxCommand
{
   private:
        int                 fFaceIdxSrc;
        MIntArray           fFaceVtxSrc;
        MDagPath            fDagPathSrc;

        // For undo
        MFloatPointArray    fVertices;
        MIntArray           fPolygonCounts;
        MIntArray           fPolygonConnects;
        MIntArray           fCVMapping;
        MIntArray           fCVMappingInverse;
        MColorArray        *fColorArrays;
        MIntArray          *fColorIdsArrays;

        MStatus                         parseArgs(const MArgList&);

        void                collectColorsUVs(MFnMesh &theMesh, bool isUndo);
        void                assignColorsUVs(MFnMesh &theMesh, MIntArray& colorMapping, MIntArray& uvMapping, bool isUndo);
        void                resetColorsUVsMemory();

        // Temp variables used only in collectColorsUVs() and assignColorsUVs()
        // for Colors
        MStringArray        fColorSetNames;
        bool               *fClampedArray;
        MFnMesh::MColorRepresentation *fRepArray;
        MColorArray        *fVertexColorArrays;
        // for UVs
        MStringArray        fUVSetNames;
        MFloatArray        *fUArrays;
        MFloatArray        *fVArrays;
        MIntArray          *fUVIdsArrays;

   public:
        meshReorderCommand();
        virtual ~meshReorderCommand();

        static void* creator();
        MStatus doIt(const MArgList&);
        MStatus redoIt();

        bool    isUndoable() const { return true; }
        MStatus undoIt();

};

#endif