Panda3D
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00001 // Filename: colorScaleAttrib.h 00002 // Created by: drose (14Mar02) 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 COLORSCALEATTRIB_H 00016 #define COLORSCALEATTRIB_H 00017 00018 #include "pandabase.h" 00019 00020 #include "renderAttrib.h" 00021 #include "luse.h" 00022 00023 class FactoryParams; 00024 00025 //////////////////////////////////////////////////////////////////// 00026 // Class : ColorScaleAttrib 00027 // Description : Applies a scale to colors in the scene graph and on 00028 // vertices. 00029 //////////////////////////////////////////////////////////////////// 00030 class EXPCL_PANDA_PGRAPH ColorScaleAttrib : public RenderAttrib { 00031 protected: 00032 ColorScaleAttrib(bool off, const LVecBase4 &scale); 00033 INLINE ColorScaleAttrib(const ColorScaleAttrib ©); 00034 00035 PUBLISHED: 00036 static CPT(RenderAttrib) make_identity(); 00037 static CPT(RenderAttrib) make(const LVecBase4 &scale); 00038 static CPT(RenderAttrib) make_off(); 00039 static CPT(RenderAttrib) make_default(); 00040 00041 INLINE bool is_off() const; 00042 INLINE bool is_identity() const; 00043 INLINE bool has_scale() const; 00044 INLINE bool has_rgb_scale() const; 00045 INLINE bool has_alpha_scale() const; 00046 INLINE const LVecBase4 &get_scale() const; 00047 CPT(RenderAttrib) set_scale(const LVecBase4 &scale) const; 00048 00049 public: 00050 virtual bool lower_attrib_can_override() const; 00051 virtual void output(ostream &out) const; 00052 00053 protected: 00054 virtual int compare_to_impl(const RenderAttrib *other) const; 00055 virtual size_t get_hash_impl() const; 00056 virtual CPT(RenderAttrib) compose_impl(const RenderAttrib *other) const; 00057 virtual CPT(RenderAttrib) invert_compose_impl(const RenderAttrib *other) const; 00058 virtual CPT(RenderAttrib) get_auto_shader_attrib_impl(const RenderState *state) const; 00059 00060 private: 00061 void quantize_scale(); 00062 00063 private: 00064 bool _off; 00065 bool _has_scale; 00066 bool _has_rgb_scale; 00067 bool _has_alpha_scale; 00068 LVecBase4 _scale; 00069 static CPT(RenderAttrib) _identity_attrib; 00070 00071 PUBLISHED: 00072 static int get_class_slot() { 00073 return _attrib_slot; 00074 } 00075 virtual int get_slot() const { 00076 return get_class_slot(); 00077 } 00078 00079 public: 00080 static void register_with_read_factory(); 00081 virtual void write_datagram(BamWriter *manager, Datagram &dg); 00082 00083 protected: 00084 static TypedWritable *make_from_bam(const FactoryParams ¶ms); 00085 void fillin(DatagramIterator &scan, BamReader *manager); 00086 00087 public: 00088 static TypeHandle get_class_type() { 00089 return _type_handle; 00090 } 00091 static void init_type() { 00092 RenderAttrib::init_type(); 00093 register_type(_type_handle, "ColorScaleAttrib", 00094 RenderAttrib::get_class_type()); 00095 _attrib_slot = register_slot(_type_handle, 100, make_default); 00096 } 00097 virtual TypeHandle get_type() const { 00098 return get_class_type(); 00099 } 00100 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00101 00102 private: 00103 static TypeHandle _type_handle; 00104 static int _attrib_slot; 00105 }; 00106 00107 #include "colorScaleAttrib.I" 00108 00109 #endif 00110