2 // Copyright 2012 Christian Henning
4 // Distributed under the Boost Software License, Version 1.0
5 // See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt
8 #ifndef BOOST_GIL_IO_MAKE_WRITER_HPP
9 #define BOOST_GIL_IO_MAKE_WRITER_HPP
11 #include <boost/gil/detail/mp11.hpp>
12 #include <boost/gil/io/get_writer.hpp>
14 #include <type_traits>
16 namespace boost { namespace gil {
18 template <typename String, typename FormatTag>
20 auto make_writer(String const& file_name, image_write_info<FormatTag> const& info,
21 typename std::enable_if
25 detail::is_supported_path_spec<String>,
26 is_format_tag<FormatTag>
27 >::value>::type* /*dummy*/ = nullptr)
28 -> typename get_writer<String, FormatTag>::type
30 typename get_write_device<String, FormatTag>::type device(
31 detail::convert_to_native_string(file_name),
32 typename detail::file_stream_device<FormatTag>::write_tag());
34 return typename get_writer<String, FormatTag>::type(device, info);
37 template< typename FormatTag >
39 typename get_writer< std::wstring
42 make_writer( const std::wstring& file_name
43 , const image_write_info< FormatTag >& info
46 const char* str = detail::convert_to_native_string( file_name );
48 typename get_write_device< std::wstring
51 , typename detail::file_stream_device< FormatTag >::write_tag()
56 return typename get_writer< std::wstring
63 #ifdef BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
64 template< typename FormatTag >
66 typename get_writer< std::wstring
69 make_writer( const filesystem::path& path
70 , const image_write_info< FormatTag >& info
73 return make_writer( path.wstring()
77 #endif // BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
79 template <typename Device, typename FormatTag>
81 auto make_writer(Device& file, image_write_info<FormatTag> const& info,
82 typename std::enable_if
86 typename detail::is_adaptable_output_device<FormatTag, Device>::type,
87 is_format_tag<FormatTag>
89 >::type* /*dummy*/ = nullptr)
90 -> typename get_writer<Device, FormatTag>::type
92 typename get_write_device<Device, FormatTag>::type device(file);
93 return typename get_writer<Device, FormatTag>::type(device, info);
96 // no image_write_info
98 template <typename String, typename FormatTag>
100 auto make_writer(String const& file_name, FormatTag const&,
101 typename std::enable_if
105 detail::is_supported_path_spec<String>,
106 is_format_tag<FormatTag>
108 >::type* /*dummy*/ = nullptr)
109 -> typename get_writer<String, FormatTag>::type
111 return make_writer(file_name, image_write_info<FormatTag>());
114 template< typename FormatTag >
116 typename get_writer< std::wstring
119 make_writer( const std::wstring& file_name
123 return make_writer( file_name
124 , image_write_info< FormatTag >()
128 #ifdef BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
129 template< typename FormatTag >
131 typename get_writer< std::wstring
134 make_writer( const filesystem::path& path
135 , const FormatTag& tag
138 return make_writer( path.wstring()
142 #endif // BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
144 template <typename Device, typename FormatTag>
146 auto make_writer(Device& file, FormatTag const&,
147 typename std::enable_if
151 typename detail::is_adaptable_output_device<FormatTag, Device>::type,
152 is_format_tag<FormatTag>
154 >::type* /*dummy*/ = nullptr)
155 -> typename get_writer<Device, FormatTag>::type
157 return make_writer(file, image_write_info<FormatTag>());
160 }} // namespace boost::gil