X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpaper-column.cc;h=78b09c3875ba254781959298b420e874565d5813;hb=42bd142680a127b608851b5fa1b2145bb42dcd7a;hp=c94541577ac2d021252523c0dab33156fc600319;hpb=b0fc2bbf6d5f9b64c8bba3b7b5e4e50297c36e00;p=lilypond.git diff --git a/lily/paper-column.cc b/lily/paper-column.cc index c94541577a..78b09c3875 100644 --- a/lily/paper-column.cc +++ b/lily/paper-column.cc @@ -3,79 +3,235 @@ source file of the GNU LilyPond music typesetter - (c) 1997--2000 Han-Wen Nienhuys + (c) 1997--2006 Han-Wen Nienhuys */ -#include "moment.hh" + #include "paper-column.hh" + +#include "moment.hh" #include "paper-score.hh" -#include "debug.hh" +#include "warn.hh" #include "axis-group-interface.hh" -#include "spaceable-element.hh" +#include "spaceable-grob.hh" +#include "text-interface.hh" +#include "lookup.hh" +#include "font-interface.hh" +#include "output-def.hh" +#include "pointer-group-interface.hh" +#include "grob-array.hh" + +Grob * +Paper_column::clone (int count) const +{ + return new Paper_column (*this, count); +} void Paper_column::do_break_processing () { - Spaceable_element::remove_interface(this); + Spaceable_grob::remove_interface (this); Item::do_break_processing (); } int -Paper_column::rank_i(Score_element*me) +Paper_column::get_rank (Grob *me) { - return dynamic_cast (me)->rank_i_; + return dynamic_cast (me)->rank_; } -Line_of_score* -Paper_column::line_l() const +System * +Paper_column::get_system () const { - return line_l_; + return system_; } -Paper_column* -Paper_column::column_l () const +void +Paper_column::set_system (System *s) { - return (Paper_column*)(this); + system_ = s; } -Paper_column::Paper_column (SCM l) - : Item (l) // guh.? +Paper_column * +Paper_column::get_column () const { - Axis_group_interface::set_interface (this); - Axis_group_interface::set_axes (this, X_AXIS, X_AXIS); - Spaceable_element::set_interface (this); + return (Paper_column *) (this); +} - line_l_=0; - rank_i_ = -1; +Paper_column::Paper_column (SCM l, Object_key const *key) + : Item (l, key) // guh.? +{ + system_ = 0; + rank_ = -1; } -Moment -Paper_column::when_mom (Score_element*me) +Paper_column::Paper_column (Paper_column const &src, int count) + : Item (src, count) { - SCM m = me->get_elt_property ("when"); - Moment s (0); - if (unsmob_moment (m)) - { - return *unsmob_moment (m); - } - return s; + system_ = 0; + rank_ = src.rank_; } + +int +Paper_column::compare (Grob * const &a, + Grob * const &b) +{ + return sign (dynamic_cast (a)->rank_ + - dynamic_cast (b)->rank_); +} + +bool +Paper_column::less_than (Grob *const &a, + Grob *const &b) +{ + Paper_column *pa = dynamic_cast (a); + Paper_column *pb = dynamic_cast (b); + return pa->rank_ < pb->rank_; +} + +Moment +Paper_column::when_mom (Grob *me) +{ + SCM m = me->get_property ("when"); + if (Moment *when = unsmob_moment (m)) + return *when; + return Moment (0); +} + bool -Paper_column::musical_b () const +Paper_column::is_musical (Grob *me) { - SCM m = get_elt_property ("shortest-starter-duration"); + SCM m = me->get_property ("shortest-starter-duration"); Moment s (0); if (unsmob_moment (m)) - { - s = *unsmob_moment (m); - } - return s != Moment(0); + s = *unsmob_moment (m); + return s != Moment (0); +} + +bool +Paper_column::is_used (Grob *me) +{ + extract_grob_set (me, "elements", elts); + if (elts.size ()) + return true; + + extract_grob_set (me, "bounded-by-me", bbm); + if (bbm.size ()) + return true; + + if (Paper_column::is_breakable (me)) + return true; + + if (to_boolean (me->get_property ("used"))) + return true; + return false; } bool -Paper_column::used_b (Score_element*me ) +Paper_column::is_breakable (Grob *me) { - return gh_pair_p (me->get_elt_property ("elements")) || Item::breakable_b (me) - || gh_pair_p (me->get_elt_property ("bounded-by-me")) - ; + return scm_is_symbol (me->get_property ("line-break-permission")); } + +/* + Print a vertical line and the rank number, to aid debugging. +*/ + +MAKE_SCHEME_CALLBACK (Paper_column, print, 1); +SCM +Paper_column::print (SCM p) +{ + Grob *me = unsmob_grob (p); + + string r = to_string (Paper_column::get_rank (me)); + + Moment *mom = unsmob_moment (me->get_property ("when")); + string when = mom ? mom->to_string () : "?/?"; + + SCM properties = Font_interface::text_font_alist_chain (me); + + SCM scm_mol = Text_interface::interpret_markup (me->layout ()->self_scm (), + properties, + scm_makfrom0str (r.c_str ())); + SCM when_mol = Text_interface::interpret_markup (me->layout ()->self_scm (), + properties, + scm_makfrom0str (when.c_str ())); + Stencil t = *unsmob_stencil (scm_mol); + t.add_at_edge (Y_AXIS, DOWN, *unsmob_stencil (when_mol), 0.1, 0.1); + t.align_to (X_AXIS, CENTER); + t.align_to (Y_AXIS, DOWN); + + Stencil l = Lookup::filled_box (Box (Interval (-0.01, 0.01), + Interval (-2, -1))); + + t.add_stencil (l); + return t.smobbed_copy (); +} + +/* + This is all too hairy. We use bounded-by-me to make sure that some + columns are kept "alive". Unfortunately, when spanners are suicided, + this falls apart again, because suicided spanners are still in + bounded-by-me + + THIS IS BROKEN KLUDGE. WE SHOULD INVENT SOMETHING BETTER. +*/ +MAKE_SCHEME_CALLBACK (Paper_column, before_line_breaking, 1); +SCM +Paper_column::before_line_breaking (SCM grob) +{ + Grob *me = unsmob_grob (grob); + + SCM bbm = me->get_object ("bounded-by-me"); + Grob_array *ga = unsmob_grob_array (bbm); + if (!ga) + return SCM_UNSPECIFIED; + + vector &array (ga->array_reference ()); + + for (vsize i = array.size (); i--;) + { + Grob *g = array[i]; + + if (!g || !g->is_live ()) + /* UGH . potentially quadratic. */ + array.erase (array.begin () + i); + } + + return SCM_UNSPECIFIED; +} + + +ADD_INTERFACE (Paper_column, + "@code{Paper_column} objects form the top-most X-parents for items." + " The are two types of columns: musical columns, where are attached to, and " + " non-musical columns, where bar-lines, clefs etc. are attached to. " + " The spacing engine determines the X-positions of these objects." + + "\n\n" + "They are\n" + " numbered, the first (leftmost) is column 0. Numbering happens before\n" + " line-breaking, and columns are not renumbered after line breaking.\n" + " Since many columns go unused, you should only use the rank field to\n" + " get ordering information. Two adjacent columns may have\n" + " non-adjacent numbers.\n", + + + /* properties */ + "between-cols " + "bounded-by-me " + "grace-spacing " + "line-break-system-details " + "line-break-penalty " + "line-break-permission " + "page-break-penalty " + "page-break-permission " + "page-turn-penalty " + "page-turn-permission " + "rhythmic-location " + "shortest-playing-duration " + "shortest-starter-duration " + "spacing " + "used " + "when "); +