src/sp-item-update-cns.cpp

   1
   2 #include "satisfied-guide-cns.h"
   3 #include "sp-guide-constraint.h"
   4 #include <sp-guide.h>
   5 #include <sp-item.h>
   6 #include <algorithm>
   7 using std::find;
   8 using std::vector;
   9
  10 void sp_item_update_cns(SPItem &item, SPDesktop const &desktop)
  11 {
  12     std::vector<Geom::Point> snappoints;
  13     sp_item_snappoints(&item, SnapPointsIter(snappoints), NULL);
  14     /* TODO: Implement the ordering. */
  15     vector<SPGuideConstraint> found_cns;
  16     satisfied_guide_cns(desktop, snappoints, found_cns);
  17     /* effic: It might be nice to avoid an n^2 algorithm, but in practice n will be
  18        small enough that it's still usually more efficient. */
  19
  20     for (vector<SPGuideConstraint>::const_iterator fi(found_cns.begin()),
  21              fiEnd(found_cns.end());
  22          fi != fiEnd; ++fi)
  23     {
  24         SPGuideConstraint const &cn = *fi;
  25         if ( find(item.constraints.begin(),
  26                   item.constraints.end(),
  27                   cn)
  28              == item.constraints.end() )
  29         {
  30             item.constraints.push_back(cn);
  31             cn.g->attached_items.push_back(SPGuideAttachment(&item, cn.snappoint_ix));
  32         }
  33     }
  34 }
  35
  36
  37 /*
  38   Local Variables:
  39   mode:c++
  40   c-file-style:"stroustrup"
  41   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  42   indent-tabs-mode:nil
  43   fill-column:99
  44   End:
  45 */
  46 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :