source file of the GNU LilyPond music typesetter
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "axis-group-interface.hh"
-#include "score-element.hh"
-#include "dimension-cache.hh"
-
-Axis_group_interface::Axis_group_interface (Score_element*s)
-{
- elt_l_ = s;
-}
-
-Axis_group_interface
-Axis_group_interface (Score_element*s)
-{
- return Axis_group_interface (s);
-}
+#include "hara-kiri-group-spanner.hh"
void
-Axis_group_interface::add_element (Score_element *e)
+Axis_group_interface::add_element (Grob*me, Grob *e)
{
- elt_l_->used_b_ = true;
- e->used_b_ = true;
-
- for (SCM ax = elt_l_->get_elt_property ("axes"); ax != SCM_EOL ; ax = gh_cdr (ax))
+ for (SCM ax = me->get_property ("axes"); ax != SCM_EOL ; ax = scm_cdr (ax))
{
- Axis a = (Axis) gh_scm2int (gh_car (ax));
+ Axis a = (Axis) scm_to_int (scm_car (ax));
- if (!e->parent_l (a))
- e->set_parent (elt_l_, a);
+ if (!e->get_parent (a))
+ e->set_parent (me, a);
+
+ e->internal_set_property ((a == X_AXIS)
+ ? ly_symbol2scm ("axis-group-parent-X")
+ : ly_symbol2scm ("axis-group-parent-Y"),
+ me->self_scm ()
+ );
}
-
- Group_interface (elt_l_).add_element (e);
-
- elt_l_->add_dependency (e);
+
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("elements"), e);
+ me->add_dependency (e);
}
-
bool
-Axis_group_interface::axis_b (Axis a )const
+Axis_group_interface::has_axis (Grob*me, Axis a)
{
- return elt_l_->dim_cache_[a]->extent_callback_l_ == group_extent_callback;
+ /*
+ urg. FIXME, check for Hara_kiri_group_spanner shouldn't be necessary?
+ */
+ return me->has_extent_callback (group_extent_callback_proc, a) ||
+ (me->has_extent_callback (Hara_kiri_group_spanner::y_extent_proc, a));
}
Interval
-Axis_group_interface::group_extent_callback (Dimension_cache const *c)
+Axis_group_interface::relative_group_extent (Axis a, Grob *common, SCM elts)
{
- Axis a = c->axis ();
- Score_element * me = c->element_l ();
-
Interval r;
- for (SCM s = me->get_elt_property ("elements"); gh_pair_p (s); s = gh_cdr (s))
+ for (SCM s = elts; scm_is_pair (s); s = scm_cdr (s))
{
- SCM e=gh_car (s);
- Score_element * se = SMOB_TO_TYPE (Score_element, e);
-
- Interval dims = se->extent (a);
- if (!dims.empty_b ())
- r.unite (dims + se->relative_coordinate (me, a));
+ Grob * se = unsmob_grob (scm_car (s));
+ Interval dims = se->extent (common, a);
+ if (!dims.is_empty ())
+ r.unite (dims);
}
-
return r;
}
-
-void
-Axis_group_interface::set_interface ()
+MAKE_SCHEME_CALLBACK (Axis_group_interface, group_extent_callback, 2);
+SCM
+Axis_group_interface::group_extent_callback (SCM element_smob, SCM scm_axis)
{
- if (!has_interface_b ())
- {
- elt_l_->set_elt_property ("elements", SCM_EOL);
- elt_l_->set_elt_property ("transparent", SCM_BOOL_T);
- elt_l_->set_elt_property ("axes" , SCM_EOL);
- group (elt_l_, "interfaces").add_thing (ly_symbol2scm ("Axis_group"));
- }
+ Grob *me = unsmob_grob (element_smob);
+ Axis a = (Axis) scm_to_int (scm_axis);
+
+ SCM elts = me->get_property ("elements");
+ Grob * common = common_refpoint_of_list (elts, me, a);
+
+ Real my_coord = me->relative_coordinate (common, a);
+ Interval r (relative_group_extent (a, common, elts));
+
+ return ly_interval2scm (r - my_coord);
}
void
-Axis_group_interface::set_axes (Axis a1, Axis a2)
+Axis_group_interface::set_axes (Grob*me, Axis a1, Axis a2)
{
- // set_interface () ?
-
- SCM ax = gh_cons (gh_int2scm (a1), SCM_EOL);
- if (a1 != a2)
- ax= gh_cons (gh_int2scm (a2), ax);
+ SCM sa1= scm_int2num (a1);
+ SCM sa2 = scm_int2num (a2);
+ SCM axes = me->get_property ("axes");
- elt_l_->set_elt_property ("axes", ax);
+ if (!scm_is_pair (axes)
+ || scm_c_memq (sa1, axes) == SCM_BOOL_F
+ || scm_c_memq (sa2, axes) == SCM_BOOL_F)
+ {
+ SCM ax = scm_cons (sa1, SCM_EOL);
+ if (a1 != a2)
+ ax = scm_cons (sa2, ax);
+ me->set_property ("axes", ax);
+ }
if (a1 != X_AXIS && a2 != X_AXIS)
- elt_l_->set_empty (X_AXIS);
+ me->set_extent (SCM_EOL, X_AXIS);
if (a1 != Y_AXIS && a2 != Y_AXIS)
- elt_l_->set_empty (Y_AXIS);
-
- elt_l_->dim_cache_[a1]->set_callback (Axis_group_interface::group_extent_callback);
- elt_l_->dim_cache_[a2]->set_callback (Axis_group_interface::group_extent_callback);
+ me->set_extent (SCM_EOL, Y_AXIS);
+
+ /*
+ why so convoluted ? (fixme/documentme?)
+ */
+ if (me->has_extent_callback (Grob::stencil_extent_proc, a1))
+ me->set_extent_callback (Axis_group_interface::group_extent_callback_proc, a1);
+ if (me->has_extent_callback (Grob::stencil_extent_proc, a2))
+ me->set_extent_callback (Axis_group_interface::group_extent_callback_proc, a2);
}
-Link_array<Score_element>
-Axis_group_interface::get_children ()
+Link_array<Grob>
+Axis_group_interface::get_children (Grob*me)
{
- Link_array<Score_element> childs;
- childs.push (elt_l_) ;
+ Link_array<Grob> childs;
+ childs.push (me) ;
- if (!has_interface_b ())
+ if (!has_interface (me))
return childs;
- for (SCM ep = elt_l_->get_elt_property ("elements"); gh_pair_p (ep); ep = gh_cdr (ep))
+ for (SCM ep = me->get_property ("elements"); scm_is_pair (ep); ep = scm_cdr (ep))
{
- Score_element* e = unsmob_element (gh_car (ep));
+ Grob* e = unsmob_grob (scm_car (ep));
if (e)
- childs.concat (Axis_group_interface (e).get_children ());
+ childs.concat (Axis_group_interface::get_children (e));
}
return childs;
}
-bool
-Axis_group_interface::has_interface_b ()
-{
- SCM memq = scm_memq (ly_symbol2scm ("Axis_group"),
- elt_l_->get_elt_property ("interfaces"));
-
- return (memq != SCM_BOOL_F);
-}
+ADD_INTERFACE (Axis_group_interface, "axis-group-interface",
+ "An object that groups other layout objects.",
+ "axes elements");
projects / lilypond.git / blobdiff