Panda3D

colorAttrib.h

00001 // Filename: colorAttrib.h
00002 // Created by:  drose (22Feb02)
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 COLORATTRIB_H
00016 #define COLORATTRIB_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "renderAttrib.h"
00021 #include "luse.h"
00022 
00023 class FactoryParams;
00024 
00025 ////////////////////////////////////////////////////////////////////
00026 //       Class : ColorAttrib
00027 // Description : Indicates what color should be applied to renderable
00028 //               geometry.
00029 ////////////////////////////////////////////////////////////////////
00030 class EXPCL_PANDA_PGRAPH ColorAttrib : public RenderAttrib {
00031 PUBLISHED:
00032   enum Type {
00033     T_vertex, T_flat, T_off
00034   };
00035 
00036 private:
00037   INLINE ColorAttrib(Type type, const Colorf &color);
00038 
00039 PUBLISHED:
00040   static CPT(RenderAttrib) make_vertex();
00041   static CPT(RenderAttrib) make_flat(const Colorf &color);
00042   static CPT(RenderAttrib) make_off();
00043   static CPT(RenderAttrib) make_default();
00044 
00045   INLINE Type get_color_type() const;
00046   INLINE const Colorf &get_color() const;
00047 
00048 public:
00049   virtual void output(ostream &out) const;
00050 
00051 protected:
00052   virtual int compare_to_impl(const RenderAttrib *other) const;
00053 
00054 private:
00055   void quantize_color();
00056 
00057 private:
00058   Type _type;
00059   Colorf _color;
00060   static CPT(RenderAttrib) _off;
00061   static CPT(RenderAttrib) _vertex;
00062 
00063 PUBLISHED:
00064   static int get_class_slot() {
00065     return _attrib_slot;
00066   }
00067   virtual int get_slot() const {
00068     return get_class_slot();
00069   }
00070 
00071 public:
00072   static void register_with_read_factory();
00073   virtual void write_datagram(BamWriter *manager, Datagram &dg);
00074 
00075 protected:
00076   static TypedWritable *make_from_bam(const FactoryParams &params);
00077   void fillin(DatagramIterator &scan, BamReader *manager);
00078   
00079 public:
00080   static TypeHandle get_class_type() {
00081     return _type_handle;
00082   }
00083   static void init_type() {
00084     RenderAttrib::init_type();
00085     register_type(_type_handle, "ColorAttrib",
00086                   RenderAttrib::get_class_type());
00087     _attrib_slot = register_slot(_type_handle, 100, make_default);
00088   }
00089   virtual TypeHandle get_type() const {
00090     return get_class_type();
00091   }
00092   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00093 
00094 private:
00095   static TypeHandle _type_handle;
00096   static int _attrib_slot;
00097 };
00098 
00099 #include "colorAttrib.I"
00100 
00101 #endif
00102 
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