-/*
- axis-group-interface.cc -- implement Axis_group_interface
-
+/*
+ axis-group-interface.cc -- implement Axis_group_interface
+
source file of the GNU LilyPond music typesetter
-
- (c) 2000--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
#include "axis-group-interface.hh"
#include "hara-kiri-group-spanner.hh"
+#include "warn.hh"
void
-Axis_group_interface::add_element (Grob*me,Grob *e)
+Axis_group_interface::add_element (Grob *me, Grob *e)
{
- for (SCM ax = me->get_property ("axes"); ax != SCM_EOL ; ax = scm_cdr (ax))
+ SCM axes = me->get_property ("axes");
+ if (!scm_is_pair (axes))
+ programming_error ("axes should be nonempty");
+
+ for (SCM ax = axes; ax != SCM_EOL; ax = scm_cdr (ax))
{
Axis a = (Axis) scm_to_int (scm_car (ax));
-
+
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 ());
}
Pointer_group_interface::add_grob (me, ly_symbol2scm ("elements"), e);
}
bool
-Axis_group_interface::has_axis (Grob*me,Axis a)
+Axis_group_interface::has_axis (Grob *me, Axis a)
{
/*
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));
+ */
+ 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::relative_group_extent (Axis a, Grob *common, SCM elts)
+Axis_group_interface::relative_group_extent (SCM elts, Grob *common, Axis a)
{
Interval r;
for (SCM s = elts; scm_is_pair (s); s = scm_cdr (s))
{
- Grob * se = unsmob_grob (scm_car (s));
+ Grob *se = unsmob_grob (scm_car (s));
Interval dims = se->extent (common, a);
if (!dims.is_empty ())
r.unite (dims);
return r;
}
-MAKE_SCHEME_CALLBACK (Axis_group_interface,group_extent_callback,2);
+
+
+MAKE_SCHEME_CALLBACK (Axis_group_interface, group_extent_callback, 2);
SCM
Axis_group_interface::group_extent_callback (SCM element_smob, SCM scm_axis)
{
Axis a = (Axis) scm_to_int (scm_axis);
SCM elts = me->get_property ("elements");
- Grob * common = common_refpoint_of_list (elts, me, a);
+ 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));
+ Interval r (relative_group_extent (elts, common, a));
return ly_interval2scm (r - my_coord);
}
void
-Axis_group_interface::set_axes (Grob*me,Axis a1, Axis a2)
+Axis_group_interface::set_axes (Grob *me, Axis a1, Axis a2)
{
- SCM sa1= scm_int2num (a1);
+ SCM sa1 = scm_int2num (a1);
SCM sa2 = scm_int2num (a2);
SCM axes = me->get_property ("axes");
-
+
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);
+ ax = scm_cons (sa2, ax);
me->set_property ("axes", ax);
}
me->set_extent (SCM_EOL, Y_AXIS);
/*
- why so convoluted ? (fixme/documentme?)
- */
+ why so convoluted ? (fixme/documentme?)
+ */
if (me->has_extent_callback (Grob::stencil_extent_proc, a1))
- me->set_extent (Axis_group_interface::group_extent_callback_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 (Axis_group_interface::group_extent_callback_proc,a2);
+ me->set_extent_callback (Axis_group_interface::group_extent_callback_proc, a2);
}
-Link_array<Grob>
-Axis_group_interface::get_children (Grob*me)
+Link_array<Grob>
+Axis_group_interface::get_children (Grob *me)
{
Link_array<Grob> childs;
- childs.push (me) ;
+ childs.push (me);
if (!has_interface (me))
return childs;
-
+
for (SCM ep = me->get_property ("elements"); scm_is_pair (ep); ep = scm_cdr (ep))
{
- Grob* e = unsmob_grob (scm_car (ep));
+ Grob *e = unsmob_grob (scm_car (ep));
if (e)
childs.concat (Axis_group_interface::get_children (e));
}
-
+
return childs;
}
-
-
ADD_INTERFACE (Axis_group_interface, "axis-group-interface",
- "An object that groups other layout objects.",
- "axes elements");
+ "An object that groups other layout objects.",
+ "axes elements");