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# extension/dynamic_image/image_view_factory.hpp

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    00001 /*
    00002     Copyright 2005-2007 Adobe Systems Incorporated
    00003
    00004     Use, modification and distribution are subject to the Boost Software License,
    00005     Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
    00006     http://www.boost.org/LICENSE_1_0.txt).
    00007
    00008     See http://opensource.adobe.com/gil for most recent version including documentation.
    00009 */
    00010
    00011 /*************************************************************************************************/
    00012
    00013 #ifndef GIL_DYNAMICIMAGE_IMAGE_VIEWS_HPP
    00014 #define GIL_DYNAMICIMAGE_IMAGE_VIEWS_HPP
    00015
    00023
    00025 #include "any_image_view.hpp"
    00026 #include "../../image_view_factory.hpp"
    00027
    00028 namespace boost { namespace gil {
    00029
    00030 namespace detail {
    00031 template <typename Result> struct flipped_up_down_view_fn {
    00032     typedef Result result_type;
    00033     template <typename View> result_type operator()(const View& src) const { return result_type(flipped_up_down_view(src)); }
    00034 };
    00035 template <typename Result> struct flipped_left_right_view_fn {
    00036     typedef Result result_type;
    00037     template <typename View> result_type operator()(const View& src) const { return result_type(flipped_left_right_view(src)); }
    00038 };
    00039 template <typename Result> struct rotated90cw_view_fn {
    00040     typedef Result result_type;
    00041     template <typename View> result_type operator()(const View& src) const { return result_type(rotated90cw_view(src)); }
    00042 };
    00043 template <typename Result> struct rotated90ccw_view_fn {
    00044     typedef Result result_type;
    00045     template <typename View> result_type operator()(const View& src) const { return result_type(rotated90ccw_view(src)); }
    00046 };
    00047 template <typename Result> struct tranposed_view_fn {
    00048     typedef Result result_type;
    00049     template <typename View> result_type operator()(const View& src) const { return result_type(tranposed_view(src)); }
    00050 };
    00051 template <typename Result> struct rotated180_view_fn {
    00052     typedef Result result_type;
    00053     template <typename View> result_type operator()(const View& src) const { return result_type(rotated180_view(src)); }
    00054 };
    00055 template <typename Result> struct subimage_view_fn {
    00056     typedef Result result_type;
    00057     subimage_view_fn(const point2<std::ptrdiff_t>& topleft, const point2<std::ptrdiff_t>& dimensions) : _topleft(topleft), _size2(dimensions) {}
    00058     point2<std::ptrdiff_t> _topleft,_size2;
    00059     template <typename View> result_type operator()(const View& src) const { return result_type(subimage_view(src,_topleft,_size2)); }
    00060 };
    00061 template <typename Result> struct subsampled_view_fn {
    00062     typedef Result result_type;
    00063     subsampled_view_fn(const point2<std::ptrdiff_t>& step) : _step(step) {}
    00064     point2<std::ptrdiff_t> _step;
    00065     template <typename View> result_type operator()(const View& src) const { return result_type(subsampled_view(src,_step)); }
    00066 };
    00067 template <typename Result> struct nth_channel_view_fn {
    00068     typedef Result result_type;
    00069     nth_channel_view_fn(int n) : _n(n) {}
    00070     int _n;
    00071     template <typename View> result_type operator()(const View& src) const { return result_type(nth_channel_view(src,_n)); }
    00072 };
    00073 template <typename DstP, typename Result> struct color_converted_view_fn {
    00074     typedef Result result_type;
    00075     template <typename View> result_type operator()(const View& src) const { return result_type(color_converted_view<DstP>(src)); }
    00076 };
    00077 } // namespace detail
    00078
    00079
    00081 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00082 typename dynamic_y_step_type<any_image_view<ViewTypes> >::type flipped_up_down_view(const any_image_view<ViewTypes>& src) {
    00083     return apply_operation(src,detail::flipped_up_down_view_fn<typename dynamic_y_step_type<any_image_view<ViewTypes> >::type>());
    00084 }
    00085
    00087 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00088 typename dynamic_x_step_type<any_image_view<ViewTypes> >::type flipped_left_right_view(const any_image_view<ViewTypes>& src) {
    00089     return apply_operation(src,detail::flipped_left_right_view_fn<typename dynamic_x_step_type<any_image_view<ViewTypes> >::type>());
    00090 }
    00091
    00093 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00094 typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type transposed_view(const any_image_view<ViewTypes>& src) {
    00095     return apply_operation(src,detail::tranposed_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>());
    00096 }
    00097
    00099 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00100 typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type rotated90cw_view(const any_image_view<ViewTypes>& src) {
    00101     return apply_operation(src,detail::rotated90cw_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>());
    00102 }
    00103
    00105 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00106 typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type rotated90ccw_view(const any_image_view<ViewTypes>& src) {
    00107     return apply_operation(src,detail::rotated90ccw_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>());
    00108 }
    00109
    00111 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00112 typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type rotated180_view(const any_image_view<ViewTypes>& src) {
    00113     return apply_operation(src,detail::rotated180_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>());
    00114 }
    00115
    00117 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00118 any_image_view<ViewTypes> subimage_view(const any_image_view<ViewTypes>& src, const point2<std::ptrdiff_t>& topleft, const point2<std::ptrdiff_t>& dimensions) {
    00119     return apply_operation(src,detail::subimage_view_fn<any_image_view<ViewTypes> >(topleft,dimensions));
    00120 }
    00121
    00123 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00124 any_image_view<ViewTypes> subimage_view(const any_image_view<ViewTypes>& src, int xMin, int yMin, int width, int height) {
    00125     return apply_operation(src,detail::subimage_view_fn<any_image_view<ViewTypes> >(point2<std::ptrdiff_t>(xMin,yMin),point2<std::ptrdiff_t>(width,height)));
    00126 }
    00127
    00129 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00130 typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type subsampled_view(const any_image_view<ViewTypes>& src, const point2<std::ptrdiff_t>& step) {
    00131     return apply_operation(src,detail::subsampled_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>(step));
    00132 }
    00133
    00135 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00136 typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type subsampled_view(const any_image_view<ViewTypes>& src, int xStep, int yStep) {
    00137     return apply_operation(src,detail::subsampled_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>(point2<std::ptrdiff_t>(xStep,yStep)));
    00138 }
    00139
    00140 namespace detail {
    00141     template <typename View> struct get_nthchannel_type { typedef typename nth_channel_view_type<View>::type type; };
    00142     template <typename Views> struct views_get_nthchannel_type : public mpl::transform<Views, get_nthchannel_type<mpl::_1> > {};
    00143 }
    00144
    00147 template <typename ViewTypes>
    00148 struct nth_channel_view_type<any_image_view<ViewTypes> > {
    00149     typedef any_image_view<typename detail::views_get_nthchannel_type<ViewTypes>::type> type;
    00150 };
    00151
    00153 template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00154 typename nth_channel_view_type<any_image_view<ViewTypes> >::type nth_channel_view(const any_image_view<ViewTypes>& src, int n) {
    00155     return apply_operation(src,detail::nth_channel_view_fn<typename nth_channel_view_type<any_image_view<ViewTypes> >::type>(n));
    00156 }
    00157
    00158 namespace detail {
    00159     template <typename View, typename DstP, typename CC> struct get_ccv_type : public color_converted_view_type<View, DstP, CC> {};
    00160     template <typename Views, typename DstP, typename CC> struct views_get_ccv_type : public mpl::transform<Views, get_ccv_type<mpl::_1,DstP,CC> > {};
    00161 }
    00162
    00165 template <typename ViewTypes, typename DstP, typename CC>
    00166 struct color_converted_view_type<any_image_view<ViewTypes>,DstP,CC> {
    00167     typedef any_image_view<typename detail::views_get_ccv_type<ViewTypes, DstP, CC>::type> type;
    00168 };
    00169
    00172 template <typename DstP, typename ViewTypes, typename CC> inline // Models MPL Random Access Container of models of ImageViewConcept
    00173 typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type color_converted_view(const any_image_view<ViewTypes>& src,CC cc) {
    00174     return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type >());
    00175 }
    00176
    00179 template <typename ViewTypes, typename DstP>
    00180 struct color_converted_view_type<any_image_view<ViewTypes>,DstP> {
    00181     typedef any_image_view<typename detail::views_get_ccv_type<ViewTypes, DstP, default_color_converter>::type> type;
    00182 };
    00183
    00186 template <typename DstP, typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00187 typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type color_converted_view(const any_image_view<ViewTypes>& src) {
    00188     return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type >());
    00189 }
    00190
    00191
    00195 template <typename DstP, typename ViewTypes, typename CC> inline // Models MPL Random Access Container of models of ImageViewConcept
    00196 typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type any_color_converted_view(const any_image_view<ViewTypes>& src,CC cc) {
    00197     return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type >());
    00198 }
    00199
    00203 template <typename DstP, typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept
    00204 typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type any_color_converted_view(const any_image_view<ViewTypes>& src) {
    00205     return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type >());
    00206 }
    00207
    00209
    00210 } }  // namespace boost::gil
    00211
    00212 #endif