X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftie.cc;h=855891f07d9acc51126d712d406a7bb6f6c35de1;hb=f4ff2e488239d66830ac8b3ae5771358a917b58f;hp=ae2be9fc11b8d24b5eab461d4f4d401084df96b3;hpb=5e963da4031a9efceda94f4969785bf6fa13048b;p=lilypond.git diff --git a/lily/tie.cc b/lily/tie.cc index ae2be9fc11..855891f07d 100644 --- a/lily/tie.cc +++ b/lily/tie.cc @@ -3,25 +3,26 @@ source file of the GNU LilyPond music typesetter - (c) 1997--2001 Han-Wen Nienhuys + (c) 1997--2004 Han-Wen Nienhuys */ #include #include "spanner.hh" #include "lookup.hh" -#include "paper-def.hh" +#include "output-def.hh" #include "tie.hh" #include "rhythmic-head.hh" #include "bezier.hh" #include "paper-column.hh" -#include "debug.hh" +#include "warn.hh" #include "staff-symbol-referencer.hh" #include "directional-element-interface.hh" -#include "molecule.hh" -#include "bezier-bow.hh" +#include "stencil.hh" +#include "bezier.hh" #include "stem.hh" #include "note-head.hh" +#include "tie-column.hh" /* tie: Connect two noteheads. @@ -37,42 +38,38 @@ void -Tie::set_head (Grob*me,Direction d, Item * head_l) +Tie::set_head (Grob*me,Direction d, Grob * h) { assert (!head (me,d)); - index_set_cell (me->get_grob_property ("heads"), d, head_l->self_scm ()); + index_set_cell (me->get_property ("head-pair"), d, h->self_scm ()); - dynamic_cast (me)->set_bound (d, head_l); - me->add_dependency (head_l); + dynamic_cast (me)->set_bound (d, h); + me->add_dependency (h); } void Tie::set_interface (Grob*me) { - me->set_grob_property ("heads", gh_cons (SCM_EOL, SCM_EOL)); - me->set_interface (ly_symbol2scm ("tie-interface")); + me->set_property ("head-pair", scm_cons (SCM_EOL, SCM_EOL)); } -bool -Tie::has_interface (Grob*me) -{ - return me->has_interface (ly_symbol2scm ("tie-interface")); -} Grob* Tie::head (Grob*me, Direction d) { - SCM c = me->get_grob_property ("heads"); - c = index_cell (c, d); + SCM c = me->get_property ("head-pair"); - return unsmob_grob (c); + if (scm_is_pair (c)) + return unsmob_grob (index_get_cell (c, d)); + else + return 0; } Real -Tie::position_f (Grob*me) +Tie::get_position (Grob*me) { Direction d = head (me,LEFT) ? LEFT:RIGHT; - return Staff_symbol_referencer::position_f (head (me,d)); + return Staff_symbol_referencer::get_position (head (me,d)); } @@ -83,23 +80,25 @@ Tie::position_f (Grob*me) The direction of the Tie is more complicated (See [Ross] p136 and further). + + (what about linebreaks? ) + */ Direction Tie::get_default_dir (Grob*me) { - Item * sl = head (me,LEFT) ? Rhythmic_head::stem_l (head (me,LEFT)) :0; - Item * sr = head (me,RIGHT) ? Rhythmic_head::stem_l (head (me,RIGHT)) :0; - + Item * sl = head (me,LEFT) ? Rhythmic_head::get_stem (head (me,LEFT)) :0; + Item * sr = head (me,RIGHT) ? Rhythmic_head::get_stem (head (me,RIGHT)) :0; if (sl && sr) { - if (Directional_element_interface::get (sl) == UP - && Directional_element_interface::get (sr) == UP) + if (get_grob_direction (sl) == UP + && get_grob_direction (sr) == UP) return DOWN; } else if (sl || sr) { Item *s = sl ? sl : sr; - return - Directional_element_interface::get (s); + return - get_grob_direction (s); } @@ -107,10 +106,27 @@ Tie::get_default_dir (Grob*me) } +void +Tie::set_direction (Grob*me) +{ + if (!get_grob_direction (me)) + { + if (Tie_column::has_interface (me->get_parent (Y_AXIS))) + Tie_column::set_directions (me->get_parent (Y_AXIS)); + else + set_grob_direction (me, Tie::get_default_dir (me)); + } +} + +/* + TODO: we should also use thickness for computing the clearance + between head and tie. Very thick ties will now touch the note head. + + */ SCM Tie::get_control_points (SCM smob) { - Spanner*me = dynamic_cast (unsmob_grob (smob)); + Spanner*me = unsmob_spanner (smob); Direction headdir = CENTER; if (head (me,LEFT)) headdir = LEFT; @@ -120,15 +136,16 @@ Tie::get_control_points (SCM smob) { programming_error ("Tie without heads."); me->suicide (); - return SCM_UNSPECIFIED; + return SCM_EOL; } - - if (!Directional_element_interface::get (me)) - Directional_element_interface::set (me, Tie::get_default_dir (me)); + + set_direction (me); + + Direction dir = get_grob_direction (me); Real staff_space = Staff_symbol_referencer::staff_space (me); - Real x_gap_f = gh_scm2double (me->get_grob_property ("x-gap")); + Real x_gap_f = robust_scm2double (me->get_property ("x-gap"), 0); Grob* l = me->get_bound (LEFT); Grob* r = me->get_bound (RIGHT); @@ -139,15 +156,24 @@ Tie::get_control_points (SCM smob) Real left_x; /* - this is a kludge: the tie has to be long enough to be - visible, but should not go through key sigs. - - (please fixme) + the tie has to be long enough to be visible, but should not go + through key sigs. In the 1.5 series the pref.matter - note + distance is fixed , so this won't be a problem anymore. */ - Real lambda = 0.5; + Real lambda = 0.9; if (Note_head::has_interface (l)) - left_x = l->extent (l, X_AXIS)[RIGHT] + x_gap_f; + { + Real where = RIGHT; + + /* + This correction is due te the shape of the black note head. + */ + if (Rhythmic_head::duration_log (l) == 2) + where += dir* 0.2; + left_x = l->extent (l, X_AXIS).linear_combination (where) + + x_gap_f; + } else left_x = l->extent (l, X_AXIS).linear_combination (lambda); @@ -173,15 +199,15 @@ Tie::get_control_points (SCM smob) - 2 * x_gap_f; } - Direction dir = Directional_element_interface::get (me); - SCM details = me->get_grob_property ("details"); + + SCM details = me->get_property ("details"); SCM lim // groetjes aan de chirurgendochter. = scm_assq (ly_symbol2scm ("height-limit"),details); - Real h_inf = gh_scm2double (gh_cdr (lim)) * staff_space; - Real r_0 = gh_scm2double (gh_cdr (scm_assq (ly_symbol2scm ("ratio"),details))); + Real h_inf = scm_to_double (scm_cdr (lim)) * staff_space; + Real r_0 = scm_to_double (scm_cdr (scm_assq (ly_symbol2scm ("ratio"),details))); Bezier b = slur_shape (width, h_inf, r_0); @@ -193,16 +219,16 @@ Tie::get_control_points (SCM smob) */ - Real ypos = Tie::position_f (me) * staff_space/2 - + dir * gh_scm2double (me->get_grob_property ("y-offset"));; + Real ypos = Tie::get_position (me) * staff_space/2 + + dir * scm_to_double (me->get_property ("y-offset"));; /* Make sure we don't start on a dots */ - if (Note_head::has_interface (l) && Rhythmic_head::dots_l (l)) + if (Note_head::has_interface (l) && Rhythmic_head::get_dots (l)) { - Grob* dots = Rhythmic_head::dots_l(l); - if(fabs (staff_space * Staff_symbol_referencer::position_f (dots) /2 + Grob* dots = Rhythmic_head::get_dots (l); + if (fabs (staff_space * Staff_symbol_referencer::get_position (dots) /2 - ypos) < 0.5) { ypos += 0.5 * dir ; @@ -242,13 +268,26 @@ Tie::get_control_points (SCM smob) Real diff = ry - y; Real newy = y; - Real clear = staff_space * gh_scm2double (me->get_grob_property ("staffline-clearance")); + Real clear = staff_space * scm_to_double (me->get_property ("staffline-clearance")); - if (fabs (y) <= Staff_symbol_referencer::staff_radius (me) + if (fabs (y) <= + Staff_symbol_referencer::staff_radius (me) * staff_space + clear && fabs (diff) < clear) { Real y1 = ry + clear; Real y2 = ry - clear; + + /* + ugh, we shove the 0.5 out of our sleeves. + + Any way. This test is to make sure that staffline + collision avoidance does not result in completely flat + ties. + */ + if (fabs (y1 - ypos) < 0.5) + y1 = y2; + else if (fabs (y2 - ypos) < 0.5) + y2 = y1; newy = (fabs (y1 - y) < fabs (y2 - y)) ? y1 : y2; @@ -275,39 +314,47 @@ Tie::get_control_points (SCM smob) SCM controls = SCM_EOL; for (int i= 4; i--;) - controls = gh_cons (ly_offset2scm (b.control_[i]), controls); + controls = scm_cons (ly_offset2scm (b.control_[i]), controls); return controls; } -MAKE_SCHEME_CALLBACK (Tie,brew_molecule,1); +MAKE_SCHEME_CALLBACK (Tie,print,1); SCM -Tie::brew_molecule (SCM smob) +Tie::print (SCM smob) { Grob*me = unsmob_grob (smob); - SCM cp = me->get_grob_property ("control-points"); - if (cp == SCM_EOL) + SCM cp = me->get_property ("control-points"); + if (!scm_is_pair (cp)) // list is more accurate { cp = get_control_points (smob); - me->set_grob_property ("control-points", cp); + me->set_property ("control-points", cp); } + + if (!scm_is_pair (cp)) + return Stencil ().smobbed_copy (); - Real thick = - gh_scm2double (me->get_grob_property ("thickness")) - * me->paper_l ()->get_var ("stafflinethickness"); + Real thick + = Staff_symbol_referencer::line_thickness (me) + * robust_scm2double (me->get_property ("thickness"), 1); Bezier b; int i = 0; - for (SCM s= cp; s != SCM_EOL; s = gh_cdr (s)) + for (SCM s= cp; s != SCM_EOL; s = scm_cdr (s)) { - b.control_[i] = ly_scm2offset (gh_car (s)); + b.control_[i] = ly_scm2offset (scm_car (s)); i++; } - Molecule a = Lookup::slur (b, Directional_element_interface::get (me) * thick, thick); + Stencil a = Lookup::slur (b, get_grob_direction (me) * thick, thick); return a.smobbed_copy (); } + +ADD_INTERFACE (Tie,"tie-interface", + "A tie connecting two noteheads.\n" + , + "y-offset staffline-clearance control-points head-pair details thickness x-gap direction minimum-length");