png++  0.2.1
image_info.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
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11  * this list of conditions and the following disclaimer.
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13  * 2. Redistributions in binary form must reproduce the above copyright
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30  */
31 #ifndef PNGPP_IMAGE_INFO_HPP_INCLUDED
32 #define PNGPP_IMAGE_INFO_HPP_INCLUDED
33 
34 #include "types.hpp"
35 #include "palette.hpp"
36 #include "tRNS.hpp"
37 #include "pixel_traits.hpp"
38 
39 namespace png
40 {
41 
47  class image_info
48  {
49  public:
56  : m_width(0),
57  m_height(0),
58  m_bit_depth(0),
63  {
64  }
65 
66  size_t get_width() const
67  {
68  return m_width;
69  }
70 
71  void set_width(size_t width)
72  {
73  m_width = width;
74  }
75 
76  size_t get_height() const
77  {
78  return m_height;
79  }
80 
81  void set_height(size_t height)
82  {
83  m_height = height;
84  }
85 
87  {
88  return m_color_type;
89  }
90 
91  void set_color_type(color_type color_space)
92  {
93  m_color_type = color_space;
94  }
95 
96  size_t get_bit_depth() const
97  {
98  return m_bit_depth;
99  }
100 
101  void set_bit_depth(size_t bit_depth)
102  {
103  m_bit_depth = bit_depth;
104  }
105 
107  {
108  return m_interlace_type;
109  }
110 
112  {
113  m_interlace_type = interlace;
114  }
115 
117  {
118  return m_compression_type;
119  }
120 
122  {
123  m_compression_type = compression;
124  }
125 
127  {
128  return m_filter_type;
129  }
130 
132  {
133  m_filter_type = filter;
134  }
135 
136  palette const& get_palette() const
137  {
138  return m_palette;
139  }
140 
142  {
143  return m_palette;
144  }
145 
146  void set_palette(palette const& plte)
147  {
148  m_palette = plte;
149  }
150 
155  {
156  m_palette.clear();
157  }
158 
159  tRNS const& get_tRNS() const
160  {
161  return m_tRNS;
162  }
163 
165  {
166  return m_tRNS;
167  }
168 
169  void set_tRNS(tRNS const& trns)
170  {
171  m_tRNS = trns;
172  }
173 
174  protected:
177  size_t m_bit_depth;
184  };
185 
190  template< typename pixel >
191  image_info
193  {
194  typedef pixel_traits< pixel > traits;
196  info.set_color_type(traits::get_color_type());
197  info.set_bit_depth(traits::get_bit_depth());
198  return info;
199  }
200 
201 } // namespace png
202 
203 #endif // PNGPP_IMAGE_INFO_HPP_INCLUDED