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40 <div class=
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41 <h1>virtual_locator.hpp
</h1><a href=
"g_i_l_0645.html">Go to the documentation of this file.
</a><div class=
"fragment"><pre class=
"fragment"><a name=
"l00001"></a>00001 <span class=
"comment">/*
</span>
42 <a name=
"l00002"></a>00002 <span class=
"comment"> Copyright
2005-
2007 Adobe Systems Incorporated
</span>
43 <a name=
"l00003"></a>00003 <span class=
"comment"> </span>
44 <a name=
"l00004"></a>00004 <span class=
"comment"> Use, modification and distribution are subject to the Boost Software License,
</span>
45 <a name=
"l00005"></a>00005 <span class=
"comment"> Version
1.0. (See accompanying file LICENSE_1_0.txt or copy at
</span>
46 <a name=
"l00006"></a>00006 <span class=
"comment"> http://www.boost.org/LICENSE_1_0.txt).
</span>
47 <a name=
"l00007"></a>00007 <span class=
"comment"></span>
48 <a name=
"l00008"></a>00008 <span class=
"comment"> See http://opensource.adobe.com/gil for most recent version including documentation.
</span>
49 <a name=
"l00009"></a>00009 <span class=
"comment">*/
</span>
50 <a name=
"l00010"></a>00010
51 <a name=
"l00011"></a>00011 <span class=
"comment">/*************************************************************************************************/
</span>
52 <a name=
"l00012"></a>00012
53 <a name=
"l00013"></a>00013 <span class=
"preprocessor">#ifndef GIL_VIRTUAL_LOCATOR_HPP
</span>
54 <a name=
"l00014"></a>00014 <span class=
"preprocessor"></span><span class=
"preprocessor">#define GIL_VIRTUAL_LOCATOR_HPP
</span>
55 <a name=
"l00015"></a>00015 <span class=
"preprocessor"></span>
56 <a name=
"l00024"></a>00024
57 <a name=
"l00025"></a>00025 <span class=
"preprocessor">#include
<boost/iterator/iterator_facade.hpp
></span>
58 <a name=
"l00026"></a>00026 <span class=
"preprocessor">#include
"<a class="code
" href="g_i_l_0256.html
" title="Locator for virtual image views.
">position_iterator.hpp</a>"</span>
59 <a name=
"l00027"></a>00027
60 <a name=
"l00028"></a>00028 <span class=
"keyword">namespace
</span>boost {
<span class=
"keyword">namespace
</span>gil {
61 <a name=
"l00029"></a>00029
62 <a name=
"l00033"></a>00033 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Deref,
<span class=
"keywordtype">bool
</span> IsTransposed
> <span class=
"comment">// A function object that given a point returns a reference. Models PixelDereferenceAdaptorConcept
</span>
63 <a name=
"l00034"></a><a class=
"code" href=
"g_i_l_0064.html">00034</a> <span class=
"keyword">class
</span><a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
</a> :
<span class=
"keyword">public
</span> <a class=
"code" href=
"g_i_l_0058.html" title=
"base class for models of PixelLocatorConceptPixel locator is similar to a pixel iterator...">pixel_2d_locator_base
</a><virtual_2d_locator
<Deref,IsTransposed
>, position_iterator
<Deref,IsTransposed
>, position_iterator
<Deref,
1-IsTransposed
> > {
64 <a name=
"l00035"></a>00035 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
<Deref,IsTransposed
></a> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">this_t
</a>;
65 <a name=
"l00036"></a>00036 <span class=
"keyword">public
</span>:
66 <a name=
"l00037"></a>00037 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0058.html" title=
"base class for models of PixelLocatorConceptPixel locator is similar to a pixel iterator...">pixel_2d_locator_base
<virtual_2d_locator
<Deref,IsTransposed
></a>,
<a class=
"code" href=
"g_i_l_0617.html" title=
"An iterator that remembers its current X,Y position and invokes a function object...">position_iterator
<Deref,IsTransposed
></a>,
<a class=
"code" href=
"g_i_l_0617.html" title=
"An iterator that remembers its current X,Y position and invokes a function object...">position_iterator
</a><Deref,
1-IsTransposed
> > <a class=
"code" href=
"g_i_l_0058.html" title=
"base class for models of PixelLocatorConceptPixel locator is similar to a pixel iterator...">parent_t
</a>;
67 <a name=
"l00038"></a>00038 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
<typename Deref::const_t,IsTransposed
></a> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">const_t
</a>;
68 <a name=
"l00039"></a>00039
69 <a name=
"l00040"></a>00040 <span class=
"keyword">typedef
</span> Deref deref_fn_t;
70 <a name=
"l00041"></a>00041 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">parent_t::point_t
</a> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>;
71 <a name=
"l00042"></a>00042
72 <a name=
"l00043"></a>00043 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::coord_t coord_t;
73 <a name=
"l00044"></a>00044 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::x_coord_t x_coord_t;
74 <a name=
"l00045"></a>00045 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::y_coord_t y_coord_t;
75 <a name=
"l00046"></a>00046 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::x_iterator x_iterator;
76 <a name=
"l00047"></a>00047 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::y_iterator y_iterator;
77 <a name=
"l00048"></a>00048
78 <a name=
"l00049"></a>00049 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> NewDeref
> <span class=
"keyword">struct
</span>add_deref {
79 <a name=
"l00050"></a>00050 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
<deref_compose
<NewDeref,Deref
></a>,IsTransposed
> type;
80 <a name=
"l00051"></a>00051 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
<Deref,IsTransposed
></a>& loc,
<span class=
"keyword">const
</span> NewDeref
& nderef) {
81 <a name=
"l00052"></a>00052 <span class=
"keywordflow">return
</span> type(loc.
<a class=
"code" href=
"g_i_l_0064.html#aa3dcf1288cb11be49a44552d5916f9b">pos
</a>(), loc.
<a class=
"code" href=
"g_i_l_0064.html#fe5624cfe9b661059ebf68a2c2659275">step
</a>(),
<a class=
"code" href=
"g_i_l_0024.html" title=
"Composes two dereference function objects. Similar to std::unary_compose but needs...">deref_compose
<NewDeref,Deref
></a>(nderef,loc.
<a class=
"code" href=
"g_i_l_0064.html#e75df2849bc94fdefa19b47d25d287d4">deref_fn
</a>()));
82 <a name=
"l00053"></a>00053 }
83 <a name=
"l00054"></a>00054 };
84 <a name=
"l00055"></a>00055
85 <a name=
"l00056"></a>00056 <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>& p=
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(
0,
0),
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>& step=
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(
1,
1),
<span class=
"keyword">const
</span> deref_fn_t
& d=deref_fn_t()) : _p(p,step,d) {}
86 <a name=
"l00057"></a>00057 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
<D,TR
></a>& loc, coord_t y_step)
87 <a name=
"l00058"></a>00058 : _p(loc.
<a class=
"code" href=
"g_i_l_0064.html#aa3dcf1288cb11be49a44552d5916f9b">pos
</a>(),
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(loc.
<a class=
"code" href=
"g_i_l_0064.html#fe5624cfe9b661059ebf68a2c2659275">step
</a>().
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>,loc.
<a class=
"code" href=
"g_i_l_0064.html#fe5624cfe9b661059ebf68a2c2659275">step
</a>().
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>*y_step), loc.
<a class=
"code" href=
"g_i_l_0064.html#e75df2849bc94fdefa19b47d25d287d4">deref_fn
</a>()) {}
88 <a name=
"l00059"></a>00059 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
> virtual_2d_locator(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
<D,TR
></a>& loc, coord_t x_step, coord_t y_step,
<span class=
"keywordtype">bool
</span> transpose=
<span class=
"keyword">false
</span>)
89 <a name=
"l00060"></a>00060 : _p(loc.
<a class=
"code" href=
"g_i_l_0064.html#aa3dcf1288cb11be49a44552d5916f9b">pos
</a>(), transpose ?
90 <a name=
"l00061"></a>00061 <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(loc.
<a class=
"code" href=
"g_i_l_0064.html#fe5624cfe9b661059ebf68a2c2659275">step
</a>().
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>*y_step,loc.
<a class=
"code" href=
"g_i_l_0064.html#fe5624cfe9b661059ebf68a2c2659275">step
</a>().
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>*x_step) :
91 <a name=
"l00062"></a>00062 <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(loc.
<a class=
"code" href=
"g_i_l_0064.html#fe5624cfe9b661059ebf68a2c2659275">step
</a>().
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>*x_step,loc.
<a class=
"code" href=
"g_i_l_0064.html#fe5624cfe9b661059ebf68a2c2659275">step
</a>().
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>*y_step), loc.
<a class=
"code" href=
"g_i_l_0064.html#e75df2849bc94fdefa19b47d25d287d4">deref_fn
</a>()) { assert(transpose==(IsTransposed!=TR));}
92 <a name=
"l00063"></a>00063
93 <a name=
"l00064"></a>00064 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
> virtual_2d_locator(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
<D,TR
></a>& pl) : _p(pl.
<a class=
"code" href=
"g_i_l_0064.html#1404c8a095151ac2c2dc5ba6372f42c6">_p
</a>) {}
94 <a name=
"l00065"></a>00065 virtual_2d_locator(
<span class=
"keyword">const
</span> virtual_2d_locator
& pl) : _p(pl.
<a class=
"code" href=
"g_i_l_0064.html#1404c8a095151ac2c2dc5ba6372f42c6">_p
</a>) {}
95 <a name=
"l00066"></a>00066
96 <a name=
"l00067"></a>00067 <span class=
"keywordtype">bool
</span> operator==(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">this_t
</a>& p)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p==p.
<a class=
"code" href=
"g_i_l_0064.html#1404c8a095151ac2c2dc5ba6372f42c6">_p
</a>; }
97 <a name=
"l00068"></a>00068
98 <a name=
"l00069"></a>00069 x_iterator
& x() {
<span class=
"keywordflow">return
</span> *gil_reinterpret_cast
<x_iterator*
>(
<span class=
"keyword">this
</span>); }
99 <a name=
"l00070"></a>00070 y_iterator
& y() {
<span class=
"keywordflow">return
</span> _p; }
100 <a name=
"l00071"></a>00071 x_iterator
<span class=
"keyword">const
</span>& x()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> *gil_reinterpret_cast_c
<x_iterator const*
>(
<span class=
"keyword">this
</span>); }
101 <a name=
"l00072"></a>00072 y_iterator
<span class=
"keyword">const
</span>& y()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p; }
102 <a name=
"l00073"></a>00073
103 <a name=
"l00074"></a>00074 <span class=
"comment">// Returns the y distance between two x_iterators given the difference of their x positions
</span>
104 <a name=
"l00075"></a>00075 y_coord_t y_distance_to(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">this_t
</a>& it2, x_coord_t xDiff)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> (it2.
<a class=
"code" href=
"g_i_l_0064.html#aa3dcf1288cb11be49a44552d5916f9b">pos
</a>()[
1-IsTransposed] - pos()[
1-IsTransposed])/step()[
1-IsTransposed]; }
105 <a name=
"l00076"></a>00076 <span class=
"keywordtype">bool
</span> is_1d_traversable(x_coord_t)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> <span class=
"keyword">false
</span>; }
<span class=
"comment">// is there no gap at the end of each row? I.e. can we use x_iterator to visit every pixel instead of nested loops?
</span>
106 <a name=
"l00077"></a>00077
107 <a name=
"l00078"></a>00078 <span class=
"comment">// Methods specific for virtual
2D locator
</span>
108 <a name=
"l00079"></a>00079 <span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>& pos()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p.pos(); }
109 <a name=
"l00080"></a>00080 <span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>& step()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p.step(); }
110 <a name=
"l00081"></a>00081 <span class=
"keyword">const
</span> deref_fn_t
& deref_fn()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p.deref_fn(); }
111 <a name=
"l00082"></a>00082 <span class=
"keyword">private
</span>:
112 <a name=
"l00083"></a>00083 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
> <span class=
"keyword">friend
</span> <span class=
"keyword">class
</span>virtual_2d_locator;
113 <a name=
"l00084"></a>00084 y_iterator _p;
<span class=
"comment">// contains the current position, the step and the dereference object
</span>
114 <a name=
"l00085"></a>00085 };
115 <a name=
"l00086"></a>00086
116 <a name=
"l00088"></a>00088 <span class=
"comment">// PixelBasedConcept
</span>
117 <a name=
"l00090"></a>00090 <span class=
"comment"></span>
118 <a name=
"l00091"></a>00091 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
>
119 <a name=
"l00092"></a>00092 <span class=
"keyword">struct
</span>channel_type
<<a class=
"code" href=
"g_i_l_0064.html" title=
"A 2D locator over a virtual image. Upon dereferencing, invokes a given function object...">virtual_2d_locator
</a><D,TR
> > :
<span class=
"keyword">public
</span> channel_type
<typename virtual_2d_locator
<D,TR
>::parent_t
> {
120 <a name=
"l00093"></a>00093 };
121 <a name=
"l00094"></a>00094
122 <a name=
"l00095"></a>00095 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
>
123 <a name=
"l00096"></a>00096 <span class=
"keyword">struct
</span>color_space_type
<virtual_2d_locator
<D,TR
> > :
<span class=
"keyword">public
</span> color_space_type
<typename virtual_2d_locator
<D,TR
>::parent_t
> {
124 <a name=
"l00097"></a>00097 };
125 <a name=
"l00098"></a>00098
126 <a name=
"l00099"></a>00099 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
>
127 <a name=
"l00100"></a>00100 <span class=
"keyword">struct
</span>channel_mapping_type
<virtual_2d_locator
<D,TR
> > :
<span class=
"keyword">public
</span> channel_mapping_type
<typename virtual_2d_locator
<D,TR
>::parent_t
> {
128 <a name=
"l00101"></a>00101 };
129 <a name=
"l00102"></a>00102
130 <a name=
"l00103"></a>00103 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
>
131 <a name=
"l00104"></a>00104 <span class=
"keyword">struct
</span>is_planar
<virtual_2d_locator
<D,TR
> > :
<span class=
"keyword">public
</span> is_planar
<typename virtual_2d_locator
<D,TR
>::parent_t
> {
132 <a name=
"l00105"></a>00105 };
133 <a name=
"l00106"></a>00106
134 <a name=
"l00108"></a>00108 <span class=
"comment">// HasDynamicXStepTypeConcept
</span>
135 <a name=
"l00110"></a>00110 <span class=
"comment"></span>
136 <a name=
"l00111"></a>00111 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
>
137 <a name=
"l00112"></a>00112 <span class=
"keyword">struct
</span>dynamic_x_step_type
<virtual_2d_locator
<D,TR
> > {
138 <a name=
"l00113"></a>00113 <span class=
"keyword">typedef
</span> virtual_2d_locator
<D,TR
> type;
139 <a name=
"l00114"></a>00114 };
140 <a name=
"l00115"></a>00115
141 <a name=
"l00117"></a>00117 <span class=
"comment">// HasDynamicYStepTypeConcept
</span>
142 <a name=
"l00119"></a>00119 <span class=
"comment"></span>
143 <a name=
"l00120"></a>00120 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> TR
>
144 <a name=
"l00121"></a>00121 <span class=
"keyword">struct
</span>dynamic_y_step_type
<virtual_2d_locator
<D,TR
> > {
145 <a name=
"l00122"></a>00122 <span class=
"keyword">typedef
</span> virtual_2d_locator
<D,TR
> type;
146 <a name=
"l00123"></a>00123 };
147 <a name=
"l00124"></a>00124
148 <a name=
"l00126"></a>00126 <span class=
"comment">// HasTransposedTypeConcept
</span>
149 <a name=
"l00128"></a>00128 <span class=
"comment"></span>
150 <a name=
"l00129"></a>00129 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> D,
<span class=
"keywordtype">bool
</span> IsTransposed
>
151 <a name=
"l00130"></a>00130 <span class=
"keyword">struct
</span>transposed_type
<virtual_2d_locator
<D,IsTransposed
> > {
152 <a name=
"l00131"></a>00131 <span class=
"keyword">typedef
</span> virtual_2d_locator
<D,
1-IsTransposed
> type;
153 <a name=
"l00132"></a>00132 };
154 <a name=
"l00133"></a>00133
155 <a name=
"l00134"></a>00134 } }
<span class=
"comment">// namespace boost::gil
</span>
156 <a name=
"l00135"></a>00135
157 <a name=
"l00136"></a>00136 <span class=
"preprocessor">#endif
</span>
159 <hr size=
"1"><address style=
"text-align: right;"><small>Generated on Sat May
2 13:
50:
15 2009 for Generic Image Library by
160 <a href=
"http://www.doxygen.org/index.html">
161 <img src=
"doxygen.png" alt=
"doxygen" align=
"middle" border=
"0"></a> 1.5.6 </small></address>