src/pencil-context.h

   1 #ifndef SEEN_PENCIL_CONTEXT_H
   2 #define SEEN_PENCIL_CONTEXT_H
   3
   4 /** \file
   5  * SPPencilContext: a context for pencil tool events
   6  */
   7
   8 #include "draw-context.h"
   9
  10
  11 #define SP_TYPE_PENCIL_CONTEXT (sp_pencil_context_get_type())
  12 #define SP_PENCIL_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_CAST((o), SP_TYPE_PENCIL_CONTEXT, SPPencilContext))
  13 #define SP_PENCIL_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), SP_TYPE_PENCIL_CONTEXT, SPPencilContextClass))
  14 #define SP_IS_PENCIL_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), SP_TYPE_PENCIL_CONTEXT))
  15 #define SP_IS_PENCIL_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), SP_TYPE_PENCIL_CONTEXT))
  16
  17 enum PencilState {
  18     SP_PENCIL_CONTEXT_IDLE,
  19     SP_PENCIL_CONTEXT_ADDLINE,
  20     SP_PENCIL_CONTEXT_FREEHAND,
  21     SP_PENCIL_CONTEXT_SKETCH
  22 };
  23
  24 /**
  25  * SPPencilContext: a context for pencil tool events
  26  */
  27 struct SPPencilContext : public SPDrawContext {
  28     Geom::Point p[16];
  29     gint npoints;
  30     PencilState state;
  31     Geom::Point req_tangent;
  32
  33     bool is_drawing;
  34     bool prev_snap_was_succesful;
  35
  36     std::vector<Geom::Point> ps;
  37
  38     Geom::Piecewise<Geom::D2<Geom::SBasis> > sketch_interpolation; // the current proposal from the sketched paths
  39     unsigned sketch_n; // number of sketches done
  40 };
  41
  42 /// The SPPencilContext vtable (empty).
  43 struct SPPencilContextClass : public SPEventContextClass { };
  44
  45 GType sp_pencil_context_get_type();
  46
  47
  48 #endif /* !SEEN_PENCIL_CONTEXT_H */
  49
  50 /*
  51   Local Variables:
  52   mode:c++
  53   c-file-style:"stroustrup"
  54   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  55   indent-tabs-mode:nil
  56   fill-column:99
  57   End:
  58 */
  59 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :