source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include <cmath>
-using namespace std;
#include "break-align-interface.hh"
-#include "pointer-group-interface.hh"
-#include "self-alignment-interface.hh"
-#include "side-position-interface.hh"
+#include "align-interface.hh"
#include "axis-group-interface.hh"
-#include "warn.hh"
#include "dimensions.hh"
+#include "international.hh"
#include "output-def.hh"
#include "paper-column.hh"
-#include "align-interface.hh"
-
-MAKE_SCHEME_CALLBACK (Break_align_interface, alignment_callback, 2);
-SCM
-Break_align_interface::alignment_callback (SCM element_smob, SCM axis)
-{
- Grob *me = unsmob_grob (element_smob);
- Axis a = (Axis) scm_to_int (axis);
-
- assert (a == X_AXIS);
- Grob *par = me->get_parent (a);
- if (par && !to_boolean (par->get_property ("positioning-done")))
- {
- par->set_property ("positioning-done", SCM_BOOL_T);
- Break_align_interface::do_alignment (par);
- }
+#include "pointer-group-interface.hh"
+#include "self-alignment-interface.hh"
+#include "side-position-interface.hh"
+#include "warn.hh"
- return scm_from_double (0);
-}
-MAKE_SCHEME_CALLBACK (Break_align_interface, self_align_callback, 2);
+MAKE_SCHEME_CALLBACK (Break_align_interface, self_align_callback, 1);
SCM
-Break_align_interface::self_align_callback (SCM element_smob, SCM axis)
+Break_align_interface::self_align_callback (SCM smob)
{
- Grob *me = unsmob_grob (element_smob);
- (void) axis;
- assert (scm_to_int (axis) == X_AXIS);
+ Grob *me = unsmob_grob (smob);
Item *item = dynamic_cast<Item *> (me);
Direction bsd = item->break_status_dir ();
/*
Force break alignment itself to be done first, in the case
*/
- return Self_alignment_interface::aligned_on_self (element_smob, axis);
+ return Self_alignment_interface::aligned_on_self (me, X_AXIS);
}
/*
So we return the correct order as an array.
*/
-Link_array<Grob>
-Break_align_interface::ordered_elements (Grob *grob)
+SCM
+Break_align_interface::break_align_order (Item *me)
{
- Item *me = dynamic_cast<Item *> (grob);
- extract_grob_set (me, "elements", elts);
-
SCM order_vec = me->get_property ("break-align-orders");
if (!scm_is_vector (order_vec)
|| scm_c_vector_length (order_vec) < 3)
- return elts;
+ return SCM_BOOL_F;
- Link_array<Grob> writable_elts (elts);
SCM order = scm_vector_ref (order_vec,
scm_from_int (me->break_status_dir () + 1));
- /*
+
+ return order;
+}
+
+
+vector<Grob*>
+Break_align_interface::ordered_elements (Grob *grob)
+{
+ Item *me = dynamic_cast<Item *> (grob);
+ extract_grob_set (me, "elements", elts);
+
+
+ SCM order = break_align_order (me);
+
+ if (order == SCM_BOOL_F)
+ return elts;
+
+ vector<Grob*> writable_elts (elts);
+ /*
Copy in order specified in BREAK-ALIGN-ORDER.
*/
- Link_array<Grob> new_elts;
+ vector<Grob*> new_elts;
for (; scm_is_pair (order); order = scm_cdr (order))
{
SCM sym = scm_car (order);
- for (int i = writable_elts.size (); i--;)
+ for (vsize i = writable_elts.size (); i--;)
{
Grob *g = writable_elts[i];
if (g && sym == g->get_property ("break-align-symbol"))
{
- new_elts.push (g);
- writable_elts.del (i);
+ new_elts.push_back (g);
+ writable_elts.erase (writable_elts.begin () + i);
}
}
}
void
Break_align_interface::add_element (Grob *me, Grob *toadd)
{
- Axis_group_interface::add_element (me, toadd);
+ Align_interface::add_element (me, toadd);
}
-void
-Break_align_interface::do_alignment (Grob *grob)
+MAKE_SCHEME_CALLBACK(Break_align_interface, calc_positioning_done, 1)
+SCM
+Break_align_interface::calc_positioning_done (SCM smob)
{
+ Grob *grob = unsmob_grob (smob);
Item *me = dynamic_cast<Item *> (grob);
- Link_array<Grob> elems = ordered_elements (me);
- Array<Interval> extents;
+ vector<Grob*> elems = ordered_elements (me);
+ vector<Interval> extents;
int last_nonempty = -1;
- for (int i = 0; i < elems.size (); i++)
+ for (vsize i = 0; i < elems.size (); i++)
{
Interval y = elems[i]->extent (elems[i], X_AXIS);
- extents.push (y);
+ extents.push_back (y);
if (!y.is_empty ())
last_nonempty = i;
}
- int idx = 0;
+ vsize idx = 0;
while (idx < extents.size () && extents[idx].is_empty ())
idx++;
- Array<Real> offsets;
- offsets.set_size (elems.size ());
- for (int i = 0; i < offsets.size ();i++)
+ vector<Real> offsets;
+ offsets.resize (elems.size ());
+ for (vsize i = 0; i < offsets.size ();i++)
offsets[i] = 0.0;
Real extra_right_space = 0.0;
- int edge_idx = -1;
+ vsize edge_idx = VPOS;
while (idx < elems.size ())
{
- int next_idx = idx + 1;
+ vsize next_idx = idx + 1;
while (next_idx < elems.size ()
&& extents[next_idx].is_empty ())
next_idx++;
*/
extract_grob_set (l, "elements", elts);
- for (int i = elts.size (); i--;)
+ for (vsize i = elts.size (); i--;)
{
Grob *elt = elts[i];
- if (edge_idx < 0
- && elt->get_property ("break-align-symbol")
- == ly_symbol2scm ("left-edge"))
+ if (edge_idx == VPOS
+ && (elt->get_property ("break-align-symbol")
+ == ly_symbol2scm ("left-edge")))
edge_idx = idx;
SCM l = elt->get_property ("space-alist");
if (r)
{
extract_grob_set (r, "elements", elts);
- for (int i = elts.size ();
+ for (vsize i = elts.size ();
!scm_is_symbol (rsym) && i--;)
{
Grob *elt = elts[i];
bool entry_found = scm_is_pair (entry);
if (!entry_found)
{
- String sym_string;
+ string sym_string;
if (scm_is_symbol (rsym))
sym_string = ly_symbol2string (rsym);
- String orig_string;
+ string orig_string;
if (unsmob_grob (l->get_property ("cause")))
orig_string = unsmob_grob (l->get_property ("cause"))->name ();
programming_error (_f ("No spacing entry from %s to `%s'",
- orig_string.to_str0 (),
- sym_string.to_str0 ()));
+ orig_string.c_str (),
+ sym_string.c_str ()));
}
Real distance = 1.0;
offsets[next_idx] = max (extents[idx][RIGHT], distance);
}
else
- extra_right_space = distance;
+ {
+ extra_right_space = distance;
+ if (idx < offsets.size() - 1)
+ offsets[idx+1] = extents[idx][RIGHT] + distance;
+ }
idx = next_idx;
}
Interval total_extent;
Real alignment_off = 0.0;
- for (int i = 0; i < offsets.size (); i++)
+ for (vsize i = 0; i < offsets.size (); i++)
{
here += offsets[i];
if (i == edge_idx)
}
if (total_extent.is_empty ())
- return;
+ return SCM_BOOL_T;
if (me->break_status_dir () == LEFT)
alignment_off = -total_extent[RIGHT] - extra_right_space;
- else if (edge_idx < 0)
+ else if (edge_idx == VPOS)
alignment_off = -total_extent[LEFT];
here = alignment_off;
- for (int i = 0; i < offsets.size (); i++)
+ for (vsize i = 0; i < offsets.size (); i++)
{
here += offsets[i];
elems[i]->translate_axis (here, X_AXIS);
}
+
+ return SCM_BOOL_T;
}
ADD_INTERFACE (Break_aligned_interface, "break-aligned-interface",
"\n"
"Rules for this spacing are much more complicated than this. \n"
"See [Wanske] page 126 -- 134, [Ross] pg 143 -- 147\n",
- "break-align-symbol space-alist");
+
+ /* properties */
+ "break-align-symbol "
+ "space-alist "
+ );
ADD_INTERFACE (Break_align_interface, "break-alignment-interface",
"The object that performs break aligment. See @ref{break-aligned-interface}.",
- "positioning-done break-align-orders");
+
+ /* properties */
+ "positioning-done "
+ "break-align-orders");
+
+
+MAKE_SCHEME_CALLBACK(Break_alignment_align_interface, self_align_callback, 1)
+SCM
+Break_alignment_align_interface::self_align_callback (SCM grob)
+{
+ Grob *me = unsmob_grob (grob);
+ Item *alignment = dynamic_cast<Item*> (me->get_parent (X_AXIS));
+ if (!Break_align_interface::has_interface (alignment))
+ return scm_from_int (0);
+
+ SCM my_align = me->get_property ("break-align-symbol");
+ SCM order = Break_align_interface::break_align_order (alignment);
+
+ vector<Grob*> elements = Break_align_interface::ordered_elements (alignment);
+ if (elements.size () == 0)
+ return scm_from_int (0);
+
+ int last_idx_found = -1;
+ vsize i = 0;
+ for (SCM s = order; scm_is_pair (order); s = scm_cdr (s))
+ {
+ if (i < elements.size ()
+ && elements[i]->get_property ("break-align-symbol") == scm_car (s))
+ {
+ last_idx_found = i;
+ i ++;
+ }
+
+ if (scm_car (s) == my_align)
+ break ;
+ }
+
+ Direction which_edge = LEFT;
+ if (vsize (last_idx_found + 1) < elements.size())
+ last_idx_found ++;
+ else
+ which_edge = RIGHT;
+
+ Grob *common = me->common_refpoint (elements[last_idx_found], X_AXIS);
+
+ return scm_from_double (robust_relative_extent (elements[last_idx_found], common, X_AXIS)[which_edge]
+ - me->relative_coordinate (common, X_AXIS));
+}
+
+ADD_INTERFACE (Break_alignment_align_interface, "break-alignment-align-interface",
+ "Object that is aligned on a break aligment. ",
+
+ /* properties */
+ "break-align-symbol "
+ )
+
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