png++ 0.2.9
streaming_base.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 *
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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
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22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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30 */
31#ifndef PNGPP_STREAMING_BASE_HPP_INCLUDED
32#define PNGPP_STREAMING_BASE_HPP_INCLUDED
33
34#include <cassert>
35#include "image_info.hpp"
36#include "pixel_traits.hpp"
37
38namespace png
39{
40
46 {
47 public:
49 : m_info(info)
50 {
51 }
52
54 {
55 return m_info;
56 }
57
58 private:
59 image_info m_info;
60 };
61
68 {
69 public:
71 : m_info(info)
72 {
73 }
74
76 {
77 return m_info;
78 }
79
80 private:
81 image_info& m_info;
82 };
83
89 template< typename pixel, class info_holder >
91 {
92 public:
94
97 {
98 }
99
106
107 image_info const& get_info() const
108 {
109 return m_info_holder.get_info();
110 }
111
112 protected:
113 void reset(size_t /*pass*/)
114 {
115 // nothing to do in the most general case
116 }
117
119 {
120 return m_info_holder.get_info();
121 }
122
124 };
125
126} // namespace png
127
128#endif // PNGPP_STREAMING_BASE_HPP_INCLUDED
The default image_info holder class. Stores image_info member object.
Definition streaming_base.hpp:46
image_info & get_info()
Definition streaming_base.hpp:53
def_image_info_holder(image_info const &info)
Definition streaming_base.hpp:48
An image_info holder class. Stores a reference to the image_info object. The image_info object itself...
Definition streaming_base.hpp:68
image_info_ref_holder(image_info &info)
Definition streaming_base.hpp:70
image_info & get_info()
Definition streaming_base.hpp:75
Holds information about PNG image.
Definition image_info.hpp:48
void set_width(uint_32 width)
Definition image_info.hpp:72
void set_height(uint_32 height)
Definition image_info.hpp:82
Holds information about PNG image. Adapter class for IO image operations.
Definition info.hpp:48
info & get_info()
Definition io_base.hpp:87
The PNG reader class template. This is the low-level reading interface–use image class or consumer cl...
Definition reader.hpp:67
A base class template for consumer and generator classes. Provides default reset() method implementat...
Definition streaming_base.hpp:91
info_holder m_info_holder
Definition streaming_base.hpp:123
void reset(size_t)
Definition streaming_base.hpp:113
pixel_traits< pixel > traits
Definition streaming_base.hpp:93
streaming_base(uint_32 width, uint_32 height)
Definition streaming_base.hpp:100
image_info const & get_info() const
Definition streaming_base.hpp:107
streaming_base(image_info &info)
Definition streaming_base.hpp:95
image_info & get_info()
Definition streaming_base.hpp:118
Definition color.hpp:37
image_info make_image_info()
Returns an image_info object with color_type and bit_depth fields setup appropriate for the pixel typ...
Definition image_info.hpp:204