-/*
+/*
side-position-interface.cc -- implement Side_position_interface
-
+
source file of the GNU LilyPond music typesetter
-
+
(c) 1998--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+*/
#include "side-position-interface.hh"
#include "string-convert.hh"
void
-Side_position_interface::add_support (Grob*me, Grob*e)
+Side_position_interface::add_support (Grob *me, Grob *e)
{
Pointer_group_interface::add_grob (me, ly_symbol2scm ("side-support-elements"), e);
}
Direction
-Side_position_interface::get_direction (Grob*me)
+Side_position_interface::get_direction (Grob *me)
{
SCM d = me->get_property ("direction");
if (is_direction (d) && to_dir (d))
{
relative_dir = to_dir (reldir);
}
-
+
SCM other_elt = me->get_property ("direction-source");
- Grob * e = unsmob_grob (other_elt);
+ Grob *e = unsmob_grob (other_elt);
if (e)
{
return (Direction) (relative_dir * get_grob_direction (e));
}
-
+
return CENTER;
}
-
MAKE_SCHEME_CALLBACK (Side_position_interface, aligned_on_support_extents, 2);
SCM
return general_side_position (me, a, true);
}
-
/* Put the element next to the support, optionally taking in
account the extent of the support. */
SCM
Real ss = Staff_symbol_referencer::staff_space (me);
SCM support = me->get_property ("side-support-elements");
Grob *common = common_refpoint_of_list (support, me->get_parent (a), a);
- Grob * st = Staff_symbol_referencer::get_staff_symbol (me);
+ Grob *st = Staff_symbol_referencer::get_staff_symbol (me);
bool include_staff = (st
&& a == Y_AXIS
&& scm_is_number (me->get_property ("staff-padding")));
common = st->common_refpoint (common, Y_AXIS);
dim = st->extent (common, Y_AXIS);
}
-
+
for (SCM s = support; s != SCM_EOL; s = scm_cdr (s))
{
Grob *e = unsmob_grob (scm_car (s));
dim = Interval (0, 0);
Direction dir = Side_position_interface::get_direction (me);
-
+
Real off = me->get_parent (a)->relative_coordinate (common, a);
- Real minimum_space = ss * robust_scm2double (me->get_property ("minimum-space"), -1);
+ Real minimum_space = ss * robust_scm2double (me->get_property ("minimum-space"), -1);
Real total_off = dim.linear_combination (dir) - off;
total_off += dir * ss * robust_scm2double (me->get_property ("padding"), 0);
if (fabs (total_off) > 100 CM)
{
String msg
- = String_convert::form_string ("Improbable offset for grob %s: %f%s",
- me->name ().to_str0 (), total_off,
- INTERNAL_UNIT);
-
+ = String_convert::form_string ("Improbable offset for grob %s: %f%s",
+ me->name ().to_str0 (), total_off,
+ INTERNAL_UNIT);
+
programming_error (msg);
}
return scm_make_real (total_off);
/*
Cut & paste (ugh.)
- */
+*/
MAKE_SCHEME_CALLBACK (Side_position_interface, aligned_on_support_refpoints, 2);
SCM
Side_position_interface::aligned_on_support_refpoints (SCM smob, SCM axis)
Grob *me = unsmob_grob (smob);
Axis a = (Axis) scm_to_int (axis);
- return general_side_position (me, a, false);
+ return general_side_position (me, a, false);
}
-
-
Real
directed_round (Real f, Direction d)
{
Side_position_interface::quantised_position (SCM element_smob, SCM)
{
Grob *me = unsmob_grob (element_smob);
-
+
Direction d = Side_position_interface::get_direction (me);
- Grob * stsym = Staff_symbol_referencer::get_staff_symbol (me);
+ Grob *stsym = Staff_symbol_referencer::get_staff_symbol (me);
if (stsym)
{
Real p = Staff_symbol_referencer::get_position (me);
Real rp = directed_round (p, d);
- Real rad = Staff_symbol_referencer::staff_radius (me) *2 ;
+ Real rad = Staff_symbol_referencer::staff_radius (me) *2;
int ip = int (rp);
Grob *head = me->get_parent (X_AXIS);
-
+
if (Staff_symbol_referencer::on_staffline (me, ip)
&& ((abs (ip) <= rad)
|| (Note_head::has_interface (head)
&& sign (Staff_symbol_referencer::get_position (head))
- == -d)
- ))
+ == -d)))
{
ip += d;
rp += d;
}
-
+
return scm_make_real ((rp - p) * Staff_symbol_referencer::staff_space (me) / 2.0);
}
return scm_make_real (0.0);
/*
Position next to support, taking into account my own dimensions and padding.
- */
+*/
MAKE_SCHEME_CALLBACK (Side_position_interface, aligned_side, 2);
SCM
Side_position_interface::aligned_side (SCM element_smob, SCM axis)
{
Grob *me = unsmob_grob (element_smob);
Axis a = (Axis) scm_to_int (axis);
-
+
Direction d = Side_position_interface::get_direction (me);
-
+
Real o = scm_to_double (aligned_on_support_extents (element_smob, axis));
- Interval iv = me->extent (me, a);
+ Interval iv = me->extent (me, a);
if (!iv.is_empty ())
{
programming_error ("Direction unknown, but aligned-side wanted.");
d = DOWN;
}
- o += - iv[-d];
+ o += -iv[-d];
}
/*
- Maintain a minimum distance to the staff. This is similar to side
- position with padding, but it will put adjoining objects on a row if
- stuff sticks out of the staff a little.
- */
- Grob * st = Staff_symbol_referencer::get_staff_symbol (me);
+ Maintain a minimum distance to the staff. This is similar to side
+ position with padding, but it will put adjoining objects on a row if
+ stuff sticks out of the staff a little.
+ */
+ Grob *st = Staff_symbol_referencer::get_staff_symbol (me);
if (st && a == Y_AXIS
&& scm_is_number (me->get_property ("staff-padding")))
{
- Real padding =
- Staff_symbol_referencer::staff_space (me)
- * scm_to_double (me->get_property ("staff-padding"));
-
+ Real padding
+ = Staff_symbol_referencer::staff_space (me)
+ * scm_to_double (me->get_property ("staff-padding"));
+
Grob *common = me->common_refpoint (st, Y_AXIS);
-
+
Interval staff_size = st->extent (common, Y_AXIS);
- Real diff = d*staff_size[d] + padding - d*(o + iv[-d]);
- o += (d* (diff >? 0));
+ Real diff = d*staff_size[d] + padding - d* (o + iv[-d]);
+ o += (d* (diff >? 0));
}
-
+
return scm_make_real (o);
}
-
void
-Side_position_interface::set_axis (Grob*me, Axis a)
+Side_position_interface::set_axis (Grob *me, Axis a)
{
me->add_offset_callback (Side_position_interface::aligned_side_proc, a);
}
// ugh. doesn't catch all variants.
Axis
-Side_position_interface::get_axis (Grob*me)
+Side_position_interface::get_axis (Grob *me)
{
if (me->has_offset_callback (Side_position_interface::aligned_side_proc, X_AXIS)
- || me->has_offset_callback (Side_position_interface::aligned_side_proc , X_AXIS))
+ || me->has_offset_callback (Side_position_interface::aligned_side_proc, X_AXIS))
return X_AXIS;
-
+
return Y_AXIS;
}
-
ADD_INTERFACE (Side_position_interface, "side-position-interface",
"Position a victim object (this one) next to other objects (the "
"support). The property @code{direction} signifies where to put the "
"victim object relative to the support (left or right, up or down?)\n\n "
"The routine also takes the size the staff into account if "
- "@code{staff-padding} is set. If undefined, the staff symbol is ignored."
- ,
+ "@code{staff-padding} is set. If undefined, the staff symbol is ignored.",
"staff-padding side-support-elements direction-source "
"direction side-relative-direction minimum-space padding");
projects / lilypond.git / blobdiff