Panda3D
colorScaleAttrib.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file colorScaleAttrib.h
10 * @author drose
11 * @date 2002-03-14
12 */
13
14#ifndef COLORSCALEATTRIB_H
15#define COLORSCALEATTRIB_H
16
17#include "pandabase.h"
18
19#include "renderAttrib.h"
20#include "luse.h"
21
22class FactoryParams;
23
24/**
25 * Applies a scale to colors in the scene graph and on vertices.
26 */
27class EXPCL_PANDA_PGRAPH ColorScaleAttrib : public RenderAttrib {
28protected:
29 ColorScaleAttrib(bool off, const LVecBase4 &scale);
30 INLINE ColorScaleAttrib(const ColorScaleAttrib &copy);
31
32PUBLISHED:
33 static CPT(RenderAttrib) make_identity();
34 static CPT(RenderAttrib) make(const LVecBase4 &scale);
35 static CPT(RenderAttrib) make_off();
36 static CPT(RenderAttrib) make_default();
37
38 INLINE bool is_off() const;
39 INLINE bool is_identity() const;
40 INLINE bool has_scale() const;
41 INLINE bool has_rgb_scale() const;
42 INLINE bool has_alpha_scale() const;
43 INLINE const LVecBase4 &get_scale() const;
44 CPT(RenderAttrib) set_scale(const LVecBase4 &scale) const;
45
46PUBLISHED:
47 MAKE_PROPERTY2(scale, has_scale, get_scale);
48
49public:
50 virtual bool lower_attrib_can_override() const;
51 virtual void output(std::ostream &out) const;
52
53protected:
54 virtual int compare_to_impl(const RenderAttrib *other) const;
55 virtual size_t get_hash_impl() const;
56 virtual CPT(RenderAttrib) compose_impl(const RenderAttrib *other) const;
57 virtual CPT(RenderAttrib) invert_compose_impl(const RenderAttrib *other) const;
58
59private:
60 void quantize_scale();
61
62private:
63 bool _off;
64 bool _has_scale;
65 bool _has_rgb_scale;
66 bool _has_alpha_scale;
67 LVecBase4 _scale;
68 static CPT(RenderAttrib) _identity_attrib;
69
70PUBLISHED:
71 static int get_class_slot() {
72 return _attrib_slot;
73 }
74 virtual int get_slot() const {
75 return get_class_slot();
76 }
77 MAKE_PROPERTY(class_slot, get_class_slot);
78
79public:
80 static void register_with_read_factory();
81 virtual void write_datagram(BamWriter *manager, Datagram &dg);
82
83protected:
84 static TypedWritable *make_from_bam(const FactoryParams &params);
85 void fillin(DatagramIterator &scan, BamReader *manager);
86
87public:
88 static TypeHandle get_class_type() {
89 return _type_handle;
90 }
91 static void init_type() {
92 RenderAttrib::init_type();
93 register_type(_type_handle, "ColorScaleAttrib",
94 RenderAttrib::get_class_type());
95 _attrib_slot = register_slot(_type_handle, 100,
96 new ColorScaleAttrib(false, LVecBase4(1, 1, 1, 1)));
97 }
98 virtual TypeHandle get_type() const {
99 return get_class_type();
100 }
101 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
102
103private:
104 static TypeHandle _type_handle;
105 static int _attrib_slot;
106};
107
108#include "colorScaleAttrib.I"
109
110#endif
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition: bamReader.h:110
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition: bamWriter.h:63
Applies a scale to colors in the scene graph and on vertices.
virtual bool lower_attrib_can_override() const
Intended to be overridden by derived RenderAttrib types to specify how two consecutive RenderAttrib o...
A class to retrieve the individual data elements previously stored in a Datagram.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition: datagram.h:38
An instance of this class is passed to the Factory when requesting it to do its business and construc...
Definition: factoryParams.h:36
This is the base class for a number of render attributes (other than transform) that may be set on sc...
Definition: renderAttrib.h:51
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
static int register_slot(TypeHandle type_handle, int sort, RenderAttrib *default_attrib)
Adds the indicated TypeHandle to the registry, if it is not there already, and returns a unique slot ...
Definition: renderAttrib.I:101
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
Base class for objects that can be written to and read from Bam files.
Definition: typedWritable.h:35
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.