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mayaBlendDesc.h
00001 // Filename: mayaBlendDesc.h
00002 // Created by:  drose (10Feb04)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef MAYABLENDDESC_H
00016 #define MAYABLENDDESC_H
00017 
00018 #include "pandatoolbase.h"
00019 
00020 #include "referenceCount.h"
00021 #include "pointerTo.h"
00022 #include "namable.h"
00023 
00024 #include "pre_maya_include.h"
00025 #include <maya/MFnBlendShapeDeformer.h>
00026 #include "post_maya_include.h"
00027 
00028 class EggTable;
00029 class EggSAnimData;
00030 
00031 ////////////////////////////////////////////////////////////////////
00032 //       Class : MayaBlendDesc
00033 // Description : A handle to a Maya blend shape description.  This is
00034 //               just one target of a Maya BlendShape object, and
00035 //               thus corresponds more or less one-to-one with a
00036 //               single Egg morph target.  (We don't attempt to
00037 //               support Maya's chained target shapes here; should we
00038 //               need to later, it would mean breaking each of those
00039 //               target shapes on the one continuous Maya slider into
00040 //               a separate MayaBlendDesc object, and synthesizing the
00041 //               egg slider values appropriately.)
00042 ////////////////////////////////////////////////////////////////////
00043 class MayaBlendDesc : public ReferenceCount, public Namable {
00044 public:
00045   MayaBlendDesc(MFnBlendShapeDeformer &deformer, int weight_index);
00046   ~MayaBlendDesc();
00047 
00048   void set_slider(PN_stdfloat value);
00049   PN_stdfloat get_slider() const;
00050 
00051 private:
00052   void clear_egg();
00053 
00054   MFnBlendShapeDeformer _deformer;
00055   int _weight_index;
00056 
00057   EggSAnimData *_anim;
00058 
00059 public:
00060   static TypeHandle get_class_type() {
00061     return _type_handle;
00062   }
00063   static void init_type() {
00064     ReferenceCount::init_type();
00065     Namable::init_type();
00066     register_type(_type_handle, "MayaBlendDesc",
00067                   ReferenceCount::get_class_type(),
00068                   Namable::get_class_type());
00069   }
00070 
00071 private:
00072   static TypeHandle _type_handle;
00073 
00074   friend class MayaNodeTree;
00075 };
00076 
00077 #endif
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