X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fitem.cc;h=abae1689a6ad828a82430caa84b59435ad395cff;hb=22d7891f2b9ddbe39118ff24f26b3a6eb302178e;hp=2ba9b270451836129db87de1dd70b6d376ca19ba;hpb=75be12aa75a535af753d6125bfc03da3ee303b36;p=lilypond.git diff --git a/lily/item.cc b/lily/item.cc index 2ba9b27045..abae1689a6 100644 --- a/lily/item.cc +++ b/lily/item.cc @@ -3,232 +3,202 @@ source file of the GNU LilyPond music typesetter - (c) 1997--1998 Han-Wen Nienhuys + (c) 1997--2002 Han-Wen Nienhuys */ -#include "p-score.hh" + +#include "paper-score.hh" #include "debug.hh" #include "item.hh" -#include "p-col.hh" +#include "paper-column.hh" #include "spanner.hh" +#include "lily-guile.hh" +#include "system.hh" +#include "group-interface.hh" -Item::Item () +Item::Item (SCM s) + : Grob (s) { - unbroken_original_l_ =0; - break_priority_i_ = 0; - breakable_b_ = false; - break_status_dir_ = CENTER; broken_to_drul_[LEFT] = broken_to_drul_[RIGHT]=0; + Group_interface::add_thing (this, ly_symbol2scm ("interfaces"), ly_symbol2scm ("item-interface")); + } -void -Item::do_print() const +/** + Item copy ctor. Copy nothing: everything should be a elt property + or a special purpose pointer (such as broken_to_drul_[]) */ +Item::Item (Item const &s) + : Grob (s) { -#ifndef NPRINT - DOUT << "breakable_b_: " << breakable_b_ << - " break_status_dir_: " << break_status_dir_; -#endif + broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0; } -Real -Item::hpos_f() const +bool +Item::breakable_b (Grob*me) { - return absolute_coordinate (X_AXIS); + if (me->original_l_) + return false; + + if (!dynamic_cast (me)) + programming_error ("only items can be breakable."); + + Item * i =dynamic_cast (me->get_parent (X_AXIS)); + return (i) ? Item::breakable_b (i) : to_boolean (me->get_grob_property ("breakable")); } -Line_of_score * -Item::line_l() const +Paper_column * +Item::column_l () const { - Graphical_element *g = parent_l (X_AXIS); - if (!g) - return 0; - return dynamic_cast (g)-> line_l (); + Item *parent = dynamic_cast (get_parent (X_AXIS)); + return parent ? parent->column_l () : 0; } -Direction -Item::break_status_dir() const +System * +Item::line_l () const { - return break_status_dir_; + Grob *g = get_parent (X_AXIS); + return g ? g->line_l () : 0; } + void -Item::copy_breakable_items() +Item::copy_breakable_items () { - if (broken_to_drul_[LEFT] || broken_to_drul_[RIGHT]) - return; Drul_array new_copies; Direction i=LEFT; do { - Score_element * dolly = clone(); - Item * item_p = dynamic_cast(dolly); - - item_p->break_status_dir_ = i; - pscore_l_->typeset_element (item_p); + Grob * dolly = clone (); + Item * item_p = dynamic_cast (dolly); + pscore_l_->line_l_->typeset_grob (item_p); new_copies[i] =item_p; } - while (flip(&i) != LEFT); + while (flip (&i) != LEFT); broken_to_drul_= new_copies; - - do - { - broken_to_drul_[i]->handle_prebroken_dependencies(); - broken_to_drul_[i]->try_visibility_lambda(); - } - while (flip(&i) != LEFT); - try_visibility_lambda (); } -void -Item::try_visibility_lambda () + +bool +Item::broken_b () const { - if (visibility_lambda_) - { - SCM args = scm_listify (gh_int2scm (break_status_dir_), SCM_UNDEFINED); - SCM result = gh_apply (visibility_lambda_, args); - int trans = gh_scm2bool (gh_car (result)); - int empty = gh_scm2bool (gh_cdr (result)); - - if (empty) - set_empty (true); - if (trans) - transparent_b_ = true; - } + return broken_to_drul_[LEFT] || broken_to_drul_[RIGHT]; } + +/* + Generate items for begin and end-of line. + */ void -Item::do_break () +Item::discretionary_processing () { - copy_breakable_items(); - handle_prebroken_dependencies(); - - /* - Otherwise the broken items won't be pre_process()'ed. - */ - add_dependency (broken_to_drul_[LEFT]); - add_dependency (broken_to_drul_[RIGHT]); + if (broken_b ()) + return; + if (Item::breakable_b (this)) + copy_breakable_items (); } -void -Item::do_breakable_col_processing() +Grob* +Item::find_broken_piece (System*l) const { - if (breakable_b_) - do_break (); + if (line_l () == l) + return (Item*) (this); -} -Item* -Item::find_prebroken_piece (Line_of_score*l) const -{ - if (line_l() == l) - return (Item*)this; - else if (broken_to_drul_[LEFT] && broken_to_drul_[LEFT]->line_l() == l) - return broken_to_drul_[LEFT]; - else if (broken_to_drul_[RIGHT] && broken_to_drul_[RIGHT]->line_l() == l) - return broken_to_drul_[RIGHT]; + Direction d = LEFT; + do { + Grob *s = broken_to_drul_[d]; + if (s && s->line_l () == l) + return s; + } + while (flip (&d) != LEFT); return 0; } + Item* -Item::find_prebroken_piece (Direction breakstatus) const +Item::find_prebroken_piece (Direction d) const { - if (!breakstatus) - return (Item *) this; // ugh - else - return (Item*) broken_to_drul_[breakstatus]; + Item * me = (Item *) (this); + if (!d) + return me; + return dynamic_cast (broken_to_drul_[d]); } -void -Item::handle_prebroken_dependencies() -{ - if (breakable_b_) - Score_element::handle_prebroken_dependencies(); -} -int -Item::left_right_compare(Item const *l, Item const *r) +Direction +Item::break_status_dir () const { - Paper_column *p1 = l->column_l (); - Paper_column* p2 = r->column_l (); - return p1->rank_i () - p2->rank_i (); -} - + if (original_l_) + { + Item * i = dynamic_cast (original_l_); -bool -Item::linked_b() const -{ - return Score_element::linked_b() || attached_span_l_arr_.size(); + return (i->broken_to_drul_[LEFT] == this) ? LEFT : RIGHT; + } + else + return CENTER; } void -Item::do_junk_links() +Item::handle_prebroken_dependencies () { - attached_span_l_arr_.set_size(0); -} + if (original_l_) + { + mutable_property_alist_ + = handle_broken_grobs(original_l_->mutable_property_alist_, + gh_int2scm (break_status_dir ())); + } + + /* + Can't do this earlier, because try_visibility_lambda () might set + the elt property transparent, which would then be copied. -void -Item::do_unlink() -{ - Link_array attached=attached_span_l_arr_; - for (int i=0; i < attached.size (); i++) + TODO: + + handle visibility-lambda the item itself iso. breakstatusdir, so + the function can do more complicated things. + + */ + SCM vis = get_grob_property ("visibility-lambda"); + if (gh_procedure_p (vis)) { - Spanner *s= attached[i]; - - Direction d= LEFT; - do { - if (s->spanned_drul_[d] == this) - s->set_bounds (d, 0); - if (unbroken_original_l_ - && unbroken_original_l_-> broken_to_drul_[d] == this) - unbroken_original_l_->broken_to_drul_[d] = 0; - } while (flip (&d) != LEFT); + SCM args = scm_list_n (gh_int2scm (break_status_dir ()), SCM_UNDEFINED); + SCM result = gh_apply (vis, args); + bool trans = gh_scm2bool (ly_car (result)); + bool empty = gh_scm2bool (ly_cdr (result)); + + if (empty && trans) + suicide (); + else if (empty) + { + set_extent (SCM_EOL, X_AXIS); + set_extent (SCM_EOL, Y_AXIS); + } + else if (trans) + set_grob_property ("molecule-callback", SCM_EOL); } - assert (!attached_span_l_arr_.size ()); - unbroken_original_l_ =0; } -Paper_column * -Item::column_l () const +SCM +Item::do_derived_mark () { - return dynamic_cast (parent_l (X_AXIS))->column_l (); + if (broken_to_drul_[LEFT]) + scm_gc_mark (broken_to_drul_[LEFT]->self_scm ()); + if (broken_to_drul_[RIGHT]) + scm_gc_mark (broken_to_drul_[RIGHT]->self_scm ()); + return SCM_EOL; } -Item::Item (Item const &s) - : Score_element (s) +Item* +unsmob_item (SCM s ) { - unbroken_original_l_ = &s; - /* do not copy attached_span_l_arr_ */ - breakable_b_ = s.breakable_b_; - visibility_lambda_ = s.visibility_lambda_; - broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0; - break_status_dir_ = s.break_status_dir_; - break_priority_i_ = s.break_priority_i_; + return dynamic_cast (unsmob_grob (s)); } -void -Item::handle_prebroken_dependents () -{ - Dimension_cache * dim = dim_cache_[X_AXIS].parent_l_; - if (!dim) - return; - - Item * parent = dynamic_cast (dim->element_l ()); - if (parent && parent->broken_to_drul_[LEFT]) - { - if(!(broken_to_drul_[LEFT] || broken_to_drul_[RIGHT])) - do_break (); - - Direction d = LEFT; - do - { - broken_to_drul_[d]->dim_cache_[X_AXIS].parent_l_ = - &parent->broken_to_drul_[d]->dim_cache_[X_AXIS]; - parent->broken_to_drul_[d]->add_dependency (broken_to_drul_[d]); - } - while ((flip (&d))!=LEFT); - } -} +ADD_INTERFACE(Item, + "item-interface", + "", + "no-spacing-rods visibility-lambda breakable")