png++: rgba_pixel.hpp Source File

png++ 0.2.10

rgba_pixel.hpp
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1 /*
2 * Copyright (C) 2007,2008 Alex Shulgin
3 *
4 * This file is part of png++ the C++ wrapper for libpng. PNG++ is free
5 * software; the exact copying conditions are as follows:
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
23 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
25 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #ifndef PNGPP_RGBA_PIXEL_HPP_INCLUDED
32 #define PNGPP_RGBA_PIXEL_HPP_INCLUDED
33
34 #include "types.hpp"
35 #include "pixel_traits.hpp"
36
37 namespace png
38 {
39
43 template< typename T >
44 struct basic_rgba_pixel
45 {
46 typedef pixel_traits< basic_rgba_pixel< T > > traits;
47
52 basic_rgba_pixel()
53 : red(0), green(0), blue(0), alpha(0)
54 {
55 }
56
62 basic_rgba_pixel(T red, T green, T blue,
63 T alpha = traits::get_alpha_filler())
64 : red(red), green(green), blue(blue), alpha(alpha)
65 {
66 }
67
68 T red;
69 T green;
70 T blue;
71 T alpha;
72 };
73
77 typedef basic_rgba_pixel< byte > rgba_pixel;
78
82 typedef basic_rgba_pixel< uint_16 > rgba_pixel_16;
83
87 template< typename T >
88 struct pixel_traits< basic_rgba_pixel< T > >
89 : basic_pixel_traits< basic_rgba_pixel< T >, T, color_type_rgba >,
90 basic_alpha_pixel_traits< T >
91 {
92 };
93
94 } // namespace png
95
96 #endif // PNGPP_RGBA_PIXEL_HPP_INCLUDED
png::basic_rgba_pixel::traits
pixel_traits< basic_rgba_pixel< T > > traits
Definition: rgba_pixel.hpp:46
png::basic_rgba_pixel::basic_rgba_pixel
basic_rgba_pixel(T red, T green, T blue, T alpha=traits::get_alpha_filler())
Constructs rgba_pixel object from red, green, blue and alpha components passed as parameters....
Definition: rgba_pixel.hpp:62
pixel_traits.hpp
png::pixel_traits
Pixel traits class template.
Definition: pixel_traits.hpp:48
types.hpp
png::basic_rgba_pixel::blue
T blue
Definition: rgba_pixel.hpp:70
png::basic_rgba_pixel::red
T red
Definition: rgba_pixel.hpp:68
png::basic_rgba_pixel::green
T green
Definition: rgba_pixel.hpp:69
png::rgba_pixel_16
basic_rgba_pixel< uint_16 > rgba_pixel_16
Definition: rgba_pixel.hpp:82
png::basic_rgba_pixel
RGBA pixel type.
Definition: rgba_pixel.hpp:44
png::basic_alpha_pixel_traits< T >::get_alpha_filler
static T get_alpha_filler()
Returns the default alpha channel filler for full opacity.
Definition: pixel_traits.hpp:95
png::basic_rgba_pixel::alpha
T alpha
Definition: rgba_pixel.hpp:71
png::rgba_pixel
basic_rgba_pixel< byte > rgba_pixel
Definition: rgba_pixel.hpp:77
png::basic_pixel_traits
Basic pixel traits class template.
Definition: pixel_traits.hpp:61
png
Definition: color.hpp:36
png::basic_rgba_pixel::basic_rgba_pixel
basic_rgba_pixel()
Default constructor. Initializes all components with zeros.
Definition: rgba_pixel.hpp:52
png::basic_alpha_pixel_traits
Basic pixel traits class template for pixels with alpha channel.
Definition: pixel_traits.hpp:89