X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftext-item.cc;h=098ef17402e5cad7cba87197374826aee0c61181;hb=7979d8adaa8393daefd6585534221a93dd526758;hp=ae3ea80b402c916e98cd0454450627f08533a833;hpb=c52973e438ce3490d688860bb71849a7b3c26fef;p=lilypond.git diff --git a/lily/text-item.cc b/lily/text-item.cc index ae3ea80b40..098ef17402 100644 --- a/lily/text-item.cc +++ b/lily/text-item.cc @@ -1,47 +1,277 @@ /* - text-item.cc -- implement Item + text-item.cc -- implement Text_item source file of the GNU LilyPond music typesetter - (c) 1998--2000 Han-Wen Nienhuys - + (c) 1998--2003 Han-Wen Nienhuys + Jan Nieuwenhuizen */ +#include -#include "debug.hh" -#include "molecule.hh" +#include "warn.hh" +#include "text-item.hh" #include "paper-def.hh" -#include "lookup.hh" +#include "font-interface.hh" +#include "staff-symbol-referencer.hh" #include "staff-symbol-referencer.hh" +#include "main.hh" +#include "all-font-metrics.hh" +#include "afm.hh" +#include "lookup.hh" +#include "virtual-font-metric.hh" + +/* + + TEXT: STRING + | (MARKUP? TEXT+) + ; + + HEAD: MARKUP-ITEM | (MARKUP-ITEM+) + + MARKUP-ITEM: PROPERTY | ABBREV | FONT-STYLE + PROPERTY: (key . value) + ABBREV: rows lines roman music bold italic named super sub text + +*/ + +Molecule +Text_item::text2molecule (Grob *me, SCM text, SCM alist_chain) +{ + if (gh_string_p (text)) + return string2molecule (me, text, alist_chain); + else if (gh_pair_p (text)) + { + /* urg, why not just do this in markup_text2molecule ? */ + if (gh_string_p (ly_car (text))) + return markup_text2molecule (me, + gh_append2 (scm_list_n (SCM_EOL, + SCM_UNDEFINED), + text), + alist_chain); + /* + Allow (faulty) texts that are in an extra list: + #'(("foo")) + */ + else if (scm_ilength (text) <= 1) + return text2molecule (me, ly_car (text), alist_chain); + else + return markup_text2molecule (me, text, alist_chain); + } + return Molecule (); +} + + +MAKE_SCHEME_CALLBACK(Text_item,text_to_molecule,3); +SCM +Text_item::text_to_molecule (SCM grob, SCM props, SCM markup) +{ + Grob *me = unsmob_grob (grob); + + return Text_item::text2molecule (me, markup, props).smobbed_copy(); +} + + +Molecule +Text_item::string2molecule (Grob *me, SCM text, SCM alist_chain) +{ + SCM style = ly_assoc_chain (ly_symbol2scm ("font-style"), + alist_chain); + if (gh_pair_p (style) && gh_symbol_p (ly_cdr (style))) + alist_chain = Font_interface::add_style (me, ly_cdr (style), alist_chain); -struct Text_item + Font_metric *fm = Font_interface::get_font (me, alist_chain); + + SCM lookup = ly_assoc_chain (ly_symbol2scm ("lookup"), alist_chain); + + Molecule mol; + if (gh_pair_p (lookup) && ly_cdr (lookup) ==ly_symbol2scm ("name")) + mol = lookup_character (me, fm, text); + else + mol = lookup_text (me, fm, text); + + return mol; +} + +Molecule +Text_item::lookup_character (Grob *, Font_metric*fm, SCM char_name) { - static SCM scheme_molecule (SCM); -}; + return fm->find_by_name (ly_scm2string (char_name)); +} + -MAKE_SCHEME_SCORE_ELEMENT_NON_DEFAULT_CALLBACKS(Text_item) +Molecule +Text_item::lookup_text (Grob *, Font_metric*fm, SCM text) +{ + SCM list = scm_list_n (ly_symbol2scm ("text"), text, SCM_UNDEFINED); + + if (dynamic_cast (fm)) + { + /* + ARGH. + */ + programming_error ("Can't use virtual font for text."); + } + else + list = fontify_atom (fm, list); + + return Molecule (fm->text_dimension (ly_scm2string (text)), list); +} + + +/* + TODO: + + DOCME. + + + MARKUP_TEXT must be compound (may not be simple string.) + + */ +Molecule +Text_item::markup_text2molecule (Grob *me, SCM markup_text, + SCM alist_chain) +{ + SCM f = me->get_paper ()->lookup_variable (ly_symbol2scm ("markup-to-properties")); + + SCM markup = ly_car (markup_text); + SCM text = ly_cdr (markup_text); + /* ARGRGRRGRARGRA + */ + + SCM abbrev = me->get_paper ()->lookup_variable (ly_symbol2scm ("abbreviation-alist")); + SCM style = me->get_paper ()->lookup_variable (ly_symbol2scm ("style-alist")); + + SCM p = gh_cons (scm_call_3 (f, abbrev, style, markup), alist_chain); + + Real staff_space = Staff_symbol_referencer::staff_space (me); + + /* + Line mode is default. + */ + Axis axis = X_AXIS; + + SCM a = ly_assoc_chain (ly_symbol2scm ("axis"), p); + if (gh_pair_p (a) && ly_axis_p (ly_cdr (a))) + axis = (Axis)gh_scm2int (ly_cdr (a)); + + Real baseline_skip = 0; + SCM b = ly_assoc_chain (ly_symbol2scm ("baseline-skip"), p); + if (gh_pair_p (b) && gh_number_p (ly_cdr (b))) + baseline_skip = gh_scm2double (ly_cdr (b)) * staff_space; + + Real kern[2] = {0,0}; + + SCM k = ly_assoc_chain (ly_symbol2scm ("kern"), p); + if (gh_pair_p (k) && gh_number_p (ly_cdr (k))) + kern[axis] = gh_scm2double (ly_cdr (k)) * staff_space; + + Real raise = 0; + SCM r = ly_assoc_chain (ly_symbol2scm ("raise"), p); + if (gh_pair_p (r) && gh_number_p (ly_cdr (r))) + raise = gh_scm2double (ly_cdr (r)) * staff_space; + + + Interval extent; + bool extent_b = false; + SCM e = ly_assoc_chain (ly_symbol2scm ("extent"), p); + if (gh_pair_p (e) && ly_number_pair_p (ly_cdr (e))) + { + extent = Interval (gh_scm2double (ly_cadr (e)) * staff_space, + gh_scm2double (ly_cddr (e)) * staff_space); + extent_b = true; + } + + Offset o (kern[X_AXIS], raise - kern[Y_AXIS]); + + Molecule mol = Lookup::filledbox (Box (Interval (0,0), Interval (0,0))); + + SCM cp = ly_deep_copy (p); + if (raise) + { + SCM cr = ly_assoc_chain (ly_symbol2scm ("raise"), cp); + scm_set_cdr_x (cr, gh_int2scm (0)); + } + + while (gh_pair_p (text)) + { + Molecule m = text2molecule (me, ly_car (text), cp); + + if (!m.empty_b ()) + { + m.translate_axis (mol.extent (axis)[axis == X_AXIS ? RIGHT : DOWN] + - (axis == Y_AXIS ? baseline_skip : 0), + axis); + mol.add_molecule (m); + } + text = ly_cdr (text); + } + + + /* Set extend to markup evented value. */ + if (extent_b) + { + Box b = mol.extent_box (); + SCM expr = mol.get_expr (); + + b[axis] = extent; + mol = Molecule (b, expr); + } + + mol.translate (o); + + return mol; +} + +MAKE_SCHEME_CALLBACK (Text_item, brew_molecule, 1); SCM -Text_item::scheme_molecule (SCM sm) +Text_item::brew_molecule (SCM smob) { - Score_element * s = unsmob_element (sm); + Grob *me = unsmob_grob (smob); - SCM style = s->get_elt_property ("style"); - String st = gh_string_p (style) ? ly_scm2string (style) : ""; - SCM txt = s-> get_elt_property ("text"); - String t = gh_string_p (txt) ? ly_scm2string (txt) : ""; + SCM text = me->get_grob_property ("text"); - Molecule mol = s->paper_l ()->lookup_l(0)->text (st, t, s->paper_l ()); + SCM properties = Font_interface::font_alist_chain (me); + Molecule mol = Text_item::text2molecule (me, text, properties); - SCM space = s->get_elt_property ("word-space"); + SCM space = me->get_grob_property ("word-space"); if (gh_number_p (space)) { Molecule m; m.set_empty (false); - mol.add_at_edge (X_AXIS, RIGHT, m, gh_scm2double (space)* - staff_symbol_referencer (s).staff_space ()); + mol.add_at_edge (X_AXIS, RIGHT, m, gh_scm2double (space) + * Staff_symbol_referencer::staff_space (me), 0); } - return mol.create_scheme (); + return mol.smobbed_copy (); +} + + + +ADD_INTERFACE (Text_item,"text-interface", + "A scheme markup text, see @ref{Markup functions}.", + "text baseline-skip word-space"); + + +/* + Ugh. Duplicated from Scheme. + */ +bool +new_markup_p (SCM x) +{ + return + gh_string_p (x) || + (gh_pair_p (x) + && SCM_BOOL_F != scm_object_property (gh_car (x), ly_symbol2scm ("markup-signature"))); } +SCM +new_markup_brewer () +{ + static SCM proc ; + if (!proc) + proc = scm_c_eval_string ("brew-new-markup-molecule"); + + return proc; +}