2 graphical-element.cc -- implement Graphical_element
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "dimension-cache.hh"
10 #include "graphical-element.hh"
11 #include "graphical-axis-group.hh"
14 Graphical_element::Graphical_element ()
16 dim_cache_[X_AXIS] = new Dimension_cache;
17 dim_cache_[Y_AXIS] = new Dimension_cache;
22 Graphical_element::Graphical_element (Graphical_element const &s)
24 dim_cache_[X_AXIS] = new Dimension_cache (*s.dim_cache_[X_AXIS]);
25 dim_cache_[Y_AXIS] = new Dimension_cache (*s.dim_cache_[Y_AXIS]);
32 Graphical_element::init ()
34 dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
39 Graphical_element::translate_axis (Real y, Axis a)
41 dim_cache_[a]->translate (y);
45 Graphical_element::relative_coordinate (Graphical_element const*e, Axis a) const
47 return dim_cache_[a]->relative_coordinate (e ? e->dim_cache_[a] : 0);
51 Graphical_element::common_refpoint (Graphical_element const* s, Axis a) const
53 return (dim_cache_[a]->common_refpoint (s->dim_cache_[a])) ->element_l ();
57 Graphical_element::translate (Offset offset)
59 translate_axis (offset[Y_AXIS], Y_AXIS);
60 translate_axis (offset[X_AXIS], X_AXIS);
65 Graphical_element::set_empty (bool b, Axis a1, Axis a2)
68 dim_cache_[a1]->set_empty (b);
70 dim_cache_[a2]->set_empty (b);
74 Return true if empty in either direction.
77 Graphical_element::empty_b (Axis a1, Axis a2)
81 b = b || dim_cache_[a1]->empty_b ();
83 b = b || dim_cache_[a2]->empty_b ();
88 Graphical_element::extent (Axis a) const
90 Dimension_cache const * d = dim_cache_[a];
100 Graphical_element::do_print () const
110 Graphical_element::invalidate_cache (Axis a)
112 dim_cache_[a]->invalidate ();
116 Graphical_element::parent_l (Axis a) const
118 Dimension_cache*d= dim_cache_[a]->parent_l_;
119 return d ? d->elt_l_ : 0;
122 Graphical_element::~Graphical_element ()
124 delete dim_cache_[X_AXIS];
125 delete dim_cache_[Y_AXIS];
129 Graphical_element::common_refpoint (Link_array<Graphical_element> gs, Axis a) const
131 Dimension_cache * common = dim_cache_[a];
132 for (int i=0; i < gs.size (); i++)
134 common = common->common_refpoint (gs[i]->dim_cache_[a]);
137 return common->element_l ();
141 Graphical_element::name () const
143 return classname (this);
147 Graphical_element::print () const
150 DOUT << classname (this) << "{\n";
157 Graphical_element::set_parent (Graphical_element *g, Axis a)
159 dim_cache_[a]->parent_l_ = g ? g->dim_cache_[a]: 0;