/*
- spacing-loose-columns.cc -- implement loose column spacing.
+ spacing-loose-columns.cc -- implement loose column spacing.
source file of the GNU LilyPond music typesetter
- (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
+ (c) 2005--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "system.hh"
#include "paper-column.hh"
#include "column-x-positions.hh"
+#include "pointer-group-interface.hh"
#include "staff-spacing.hh"
-
+#include "note-spacing.hh"
+#include "spacing-spanner.hh"
+#include "warn.hh"
+#include "moment.hh"
+#include "spacing-options.hh"
/* Find the loose columns in POSNS, and drape them around the columns
specified in BETWEEN-COLS. */
void
-set_loose_columns (System* which, Column_x_positions const *posns)
+set_loose_columns (System *which, Column_x_positions const *posns)
{
int loose_col_count = posns->loose_cols_.size ();
+ if (!loose_col_count)
+ return;
+
for (int i = 0; i < loose_col_count; i++)
{
int divide_over = 1;
- Item *loose = dynamic_cast<Item*> (posns->loose_cols_[i]);
- Paper_column* col = dynamic_cast<Paper_column*> (loose);
-
- if (col->system_)
+ Item *loose = dynamic_cast<Item *> (posns->loose_cols_[i]);
+ Paper_column *col = dynamic_cast<Paper_column *> (loose);
+
+ if (col->get_system ())
continue;
-
+
Item *left = 0;
Item *right = 0;
+
+ vector<Item*> clique;
while (1)
{
- SCM between = loose->get_property ("between-cols");
+ SCM between = loose->get_object ("between-cols");
if (!scm_is_pair (between))
break;
- Item *le = dynamic_cast<Item*> (unsmob_grob (scm_car (between)));
- Item *re = dynamic_cast<Item*> (unsmob_grob (scm_cdr (between)));
+ Item *le = dynamic_cast<Item *> (unsmob_grob (scm_car (between)));
+ Item *re = dynamic_cast<Item *> (unsmob_grob (scm_cdr (between)));
- if (!(le && re))
+ if (! (le && re))
break;
-
+
if (!left && le)
{
left = le->get_column ();
if (!left->get_system ())
left = left->find_prebroken_piece (RIGHT);
+
+ clique.push_back (left);
}
+ clique.push_back (loose);
+
divide_over++;
loose = right = re->get_column ();
}
- if (!right->get_system ())
+ if (right->get_system ())
+ ; /* do nothing */
+ else if (right->find_prebroken_piece (LEFT)
+ && right->find_prebroken_piece (LEFT)->get_system () == which)
right = right->find_prebroken_piece (LEFT);
+ else if (Paper_column::get_rank (which->get_bound (RIGHT)) < Paper_column::get_rank (right))
+
+ right = which->get_bound (RIGHT);
+ else
+ {
+ clique.back ()->programming_error ("Loose column does not have right side to attach to.");
+ System *base_system = dynamic_cast<System*> (which->original ());
+ int j = Paper_column::get_rank (clique.back ()) + 1;
+ int end_rank = Paper_column::get_rank (which->get_bound (RIGHT));
+ extract_grob_set (base_system, "columns", base_cols);
+ for (; j < end_rank; j++)
+ {
+ if (base_cols[j]->get_system () == which)
+ right = dynamic_cast<Item*> ((Grob*)base_cols[j]);
+ }
+ }
+
+ if (!right)
+ {
+ programming_error ("Can't attach loose column sensibly. Attaching to end of system.");
+ right = which->get_bound (RIGHT);
+ }
Grob *common = right->common_refpoint (left, X_AXIS);
- int count = 0;
- Real total_space = 0.0;
- Real total_fixed = 0.0;
- for (SCM wish = col->get_property ("spacing-wishes"); scm_is_pair (wish); wish = scm_cdr (wish))
+ clique.push_back (right);
+
+ vector<Real> clique_spacing;
+ clique_spacing.push_back (0.0);
+ for (vsize j = 1; j + 1 < clique.size (); j ++)
{
- Grob *spacing = unsmob_grob (scm_car (wish));
- if (Staff_spacing::has_interface (spacing))
+ Grob *clique_col = clique[j];
+
+ Paper_column *loose_col = dynamic_cast<Paper_column *> (clique[j]);
+ Paper_column *next_col = dynamic_cast<Paper_column *> (clique[j + 1]);
+
+ Grob *spacing = unsmob_grob (clique_col->get_object ("spacing"));
+ if (Grob *grace_spacing = unsmob_grob (clique_col->get_object ("grace-spacing")))
+ {
+ spacing = grace_spacing;
+ }
+
+ Spacing_options options;
+ if (spacing)
+ options.init_from_grob (spacing);
+ else
+ programming_error ("Column without spacing object");
+
+ Real base_note_space = 0.0;
+
+ if (Paper_column::is_musical (next_col)
+ && Paper_column::is_musical (loose_col))
+ base_note_space = Spacing_spanner::note_spacing (spacing, loose_col, next_col,
+ &options);
+ else
{
- Real space = 0.0;
- Real fixed = 0.0;
- Staff_spacing::get_spacing_params (spacing, &space, &fixed);
+ Spring spring = Spacing_spanner::standard_breakable_column_spacing (spacing,
+ loose_col, next_col,
+ &options);
- total_fixed += fixed;
- total_space += space;
- count ++;
+ base_note_space = spring.distance ();
}
+
+ base_note_space = max (base_note_space,
+ robust_relative_extent (loose_col, loose_col, X_AXIS)[RIGHT]
+ - robust_relative_extent (next_col, next_col, X_AXIS)[LEFT]);
+
+ clique_spacing.push_back (base_note_space);
}
- Real right_point = 0.0;
- Real distance_to_next = 0.0;
- if (count)
- {
- total_space /= count;
- total_fixed /= count;
+ Real default_padding = 1.0;
+ clique_spacing.push_back (default_padding);
- distance_to_next = total_space;
- right_point = right->relative_coordinate (common, X_AXIS);
- }
- else
+ Real right_point = robust_relative_extent (clique.back (), common, X_AXIS)[LEFT];
+
+
+ Grob *finished_right_column = clique.back ();
+
+ for (vsize j = clique.size () - 2; j > 0; j--)
{
- Interval my_extent = col->extent (col, X_AXIS);
- distance_to_next = my_extent[RIGHT] + 1.0;
- right_point = right->extent (common, X_AXIS)[LEFT];
- }
-#if 0
- Real left_point = left->extent (common, X_AXIS)[RIGHT];
+ Paper_column *clique_col = dynamic_cast<Paper_column *> (clique[j]);
+
+ right_point = finished_right_column->relative_coordinate (common, X_AXIS);
- Real space_left = ((right_point - left_point) >? 0.0)
- - (my_extent.is_empty() ? 0.0 : my_extent.length ());
+ Real distance_to_next = clique_spacing[j];
+
+ Real my_offset = right_point - distance_to_next;
- Real padding = (space_left / 2) <? 1.0;
- /*
- Put it just left of the right column, with a bit of extra space
- */
-#endif
- Real my_offset = right_point - distance_to_next;
+ clique_col->set_system (which);
+ clique_col->translate_axis (my_offset - clique_col->relative_coordinate (common, X_AXIS), X_AXIS);
- col->system_ = which;
- col->translate_axis (my_offset - col->relative_coordinate (common, X_AXIS), X_AXIS);
+ finished_right_column = clique_col;
+ }
+
}
}
projects / lilypond.git / blobdiff