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paragraphs_in_borders.hh
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26 
27 #ifndef SCRIBO_FILTER_PARAGRAPHS_IN_BORDERS_HH
28 # define SCRIBO_FILTER_PARAGRAPHS_IN_BORDERS_HH
29 
34 
35 
36 # include <mln/core/concept/image.hh>
37 # include <scribo/core/component_set.hh>
38 # include <scribo/core/document.hh>
39 # include <scribo/util/box_is_included.hh>
40 
41 namespace scribo
42 {
43 
44  namespace filter
45  {
46 
47  using namespace mln;
48 
49 
74  template <typename L>
75  void
76  paragraphs_in_borders(document<L>& doc);
77 
78 
79 # ifndef MLN_INCLUDE_ONLY
80 
81  template <typename L>
82  void
83  paragraphs_in_borders(document<L>& doc)
84  {
85  mln_trace("scribo::filter::paragraphs_in_borders");
86 
87  mln_precondition(doc.is_valid());
88 
89  const mln::image2d<mln::value::rgb8>& ima = doc.image();
90 
91  unsigned border_size = std::min(43., 0.02 * ima.domain().width());
92 
104  point2d
105  ptl = ima.domain().pmin(),
106  pt(geom::min_row(ima), geom::max_col(ima) - border_size),
107  ptr(border_size, geom::max_col(ima)),
108  pbr = ima.domain().pmax(),
109  pb(geom::max_row(ima), border_size),
110  pbl(geom::max_row(ima) - border_size, geom::min_col(ima));
111 
112  box2d
113  bt(ptl, ptr),
114  br(pt, pbr),
115  bb(pbl, pbr),
116  bl(ptl, pb);
117 
118  // Horizontal paragraphs
119  if (doc.has_text())
120  {
121  paragraph_set<L> parset = doc.paragraphs();
122  for_all_paragraphs(p, parset)
123  if (parset(p).is_valid())
124  if (util::box_is_included(parset(p).bbox(), bt)
125  || util::box_is_included(parset(p).bbox(), br)
126  || util::box_is_included(parset(p).bbox(), bb)
127  || util::box_is_included(parset(p).bbox(), bl))
128  {
129  parset(p).invalidate();
130  }
131 
132  doc.set_paragraphs(parset);
133  }
134 
135  }
136 
137 # endif // ! MLN_INCLUDE_ONLY
138 
139  } // end of namespace scribo::filter
140 
141 } // end of namespace scribo
142 
143 #endif // ! SCRIBO_FILTER_PARAGRAPHS_IN_BORDERS_HH