X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ffont-metric.cc;h=77f02df579c9beaedc747dcf7d565f4e00c1d5ed;hb=5d84bfad4626892bcffd05adcced53c8a2329047;hp=1d0428b278e80a628d1eda33c969068e29d80c38;hpb=402045837e7134cdf90d1fcf31768c62227a4936;p=lilypond.git diff --git a/lily/font-metric.cc b/lily/font-metric.cc index 1d0428b278..77f02df579 100644 --- a/lily/font-metric.cc +++ b/lily/font-metric.cc @@ -1,230 +1,158 @@ -/* - font-metric.cc -- implement Font_metric - - source file of the GNU LilyPond music typesetter - - (c) 1999--2004 Han-Wen Nienhuys +/* + This file is part of LilyPond, the GNU music typesetter. - Mats Bengtsson (the ugly TeX parsing in text_dimension) - */ + Copyright (C) 1999--2015 Han-Wen Nienhuys -#include -#include + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . +*/ -#include "virtual-methods.hh" -#include "warn.hh" -#include "stencil.hh" -#include "ly-smobs.icc" #include "font-metric.hh" -#include "string.hh" -Box -Font_metric::text_dimension (String text) const -{ - Interval ydims; - Real w=0.0; - - for (int i = 0; i < text.length (); i++) - { - - switch (text[i]) - { - case '\\': - // accent marks use width of base letter - if (i +1 < text.length ()) - { - if (text[i+1]=='\'' || text[i+1]=='`' || text[i+1]=='"' || - text[i+1]=='^') - { - i++; - break; - } - // for string width \\ is a \ and \_ is a _. - if (text[i+1]=='\\' || text[i+1]=='_') - { - break; - } - } - - for (i++; (i < text.length ()) && !isspace (text[i]) - && text[i]!='{' && text[i]!='}'; i++) - ; - // ugh. - i--; // Compensate for the increment in the outer loop! - break; - case '{': // Skip '{' and '}' - case '}': - break; - - default: - Box b = get_ascii_char ((unsigned char)text[i]); - - // Ugh, use the width of 'x' for unknown characters - if (b[X_AXIS].length () == 0) - b = get_ascii_char ((unsigned char)'x'); - - w += b[X_AXIS].length (); - ydims.unite (b[Y_AXIS]); - break; - } - } - if (ydims.is_empty ()) - ydims = Interval (0,0); +#include +#include +using namespace std; - return Box (Interval (0, w), ydims); -} +#include "dimensions.hh" +#include "modified-font-metric.hh" +#include "open-type-font.hh" +#include "stencil.hh" +#include "warn.hh" +Real +Font_metric::design_size () const +{ + return 1.0 * point_constant; +} -Font_metric::~Font_metric () +Stencil +Font_metric::find_by_name (string s) const { + replace_all (&s, '-', 'M'); + int idx = name_to_index (s); + Box b; + + SCM expr = SCM_EOL; + if (idx >= 0) + { + expr = scm_list_3 (ly_symbol2scm ("named-glyph"), + self_scm (), + ly_string2scm (s)); + b = get_indexed_char_dimensions (idx); + } + + Stencil q (b, expr); + return q; } Font_metric::Font_metric () { description_ = SCM_EOL; - self_scm_ = SCM_EOL; smobify_self (); } Font_metric::Font_metric (Font_metric const &) + : Smob () { } -int -Font_metric::count () const -{ - return 0; -} - -Box -Font_metric::get_ascii_char (int) const +Font_metric::~Font_metric () { - return Box (Interval (0,0),Interval (0,0)); } -Box -Font_metric::get_indexed_char (int k) const +size_t +Font_metric::count () const { - return get_ascii_char(k); + return 0; } - -int -Font_metric::name_to_index (String) const +Box +Font_metric::get_indexed_char_dimensions (size_t) const { - return -1; + return Box (Interval (0, 0), Interval (0, 0)); } Offset -Font_metric::get_indexed_wxwy (int )const +Font_metric::get_indexed_wxwy (size_t) const { - return Offset (0,0); + return Offset (0, 0); } void -Font_metric::derived_mark ()const +Font_metric::derived_mark () const { - } SCM -Font_metric::mark_smob (SCM s) +Font_metric::mark_smob () const { - Font_metric * m = (Font_metric*) SCM_CELL_WORD_1 (s); - - m->derived_mark(); - return m->description_; + derived_mark (); + return description_; } int -Font_metric::print_smob (SCM s, SCM port, scm_print_state *) +Font_metric::print_smob (SCM port, scm_print_state *) const { - Font_metric *m = unsmob_metrics (s); scm_puts ("#<", port); - scm_puts (classname (m), port); + scm_puts (class_name (), port); scm_puts (" ", port); - scm_write (m->description_, port); + scm_write (description_, port); scm_puts (">", port); return 1; } +const char * const Font_metric::type_p_name_ = "ly:font-metric?"; - -IMPLEMENT_SMOBS (Font_metric); -IMPLEMENT_DEFAULT_EQUAL_P (Font_metric); -IMPLEMENT_TYPE_P (Font_metric, "ly:font-metric?"); - -Stencil -Font_metric::find_by_name (String) const +SCM +Font_metric::font_file_name () const { - Stencil m ; - return m; + return scm_car (description_); } -LY_DEFINE(ly_find_glyph_by_name, "ly:find-glyph-by-name", 2 , 0, 0, - (SCM font, SCM name), - "This function retrieves a Stencil for the glyph named @var{name} in " -"@var{font}. The font must be available as an AFM file. If the glyph " -"is not found, #f is returned. ") +string +Font_metric::font_name () const { - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE(fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - SCM_ASSERT_TYPE(gh_string_p (name), name, SCM_ARG2, __FUNCTION__, "string"); - - Stencil m = fm->find_by_name (ly_scm2string (name)); - - /* - TODO: make optional argument for default if not found. - - */ - return m.smobbed_copy (); + string s ("unknown"); + return s; } -LY_DEFINE(ly_get_glyph, "ly:get-glyph", 2 , 0, 0, - (SCM font, SCM index), - "This function retrieves a Stencil for the glyph numbered @var{index} in " -"@var{font}. ") +size_t +Font_metric::index_to_charcode (size_t i) const { - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE(fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - SCM_ASSERT_TYPE(gh_number_p (index), index, SCM_ARG2, __FUNCTION__, "number"); - - return fm->get_ascii_char_stencil (gh_scm2int (index)).smobbed_copy (); + return i; } -LY_DEFINE(ly_text_dimension,"ly:text-dimension", 2 , 0, 0, - (SCM font, SCM text), - "Given the font metric in @var{font} and the string @var{text}, compute " -"the extents of that text in that font. The return value is a pair of " -"number-pairs.") +Offset +Font_metric::attachment_point (const string&) const { - Box b; - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE(fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - SCM_ASSERT_TYPE(gh_string_p (text), text, SCM_ARG2, __FUNCTION__, "string"); - - b = fm->text_dimension (ly_scm2string (text)); - - return gh_cons (ly_interval2scm (b[X_AXIS]), ly_interval2scm(b[Y_AXIS])); + return Offset (0, 0); } -Stencil -Font_metric::get_ascii_char_stencil (int code) const +SCM +Font_metric::sub_fonts () const { - SCM at = scm_list_n (ly_symbol2scm ("char"), gh_int2scm (code), - SCM_UNDEFINED); - at = fontify_atom (this, at); - Box b = get_ascii_char (code); - return Stencil (b, at); + return SCM_EOL; } Stencil -Font_metric::get_indexed_char_stencil (int code) const +Font_metric::text_stencil (Output_def *state, + const string&, + bool, + const string&) const { - SCM at = scm_list_n (ly_symbol2scm ("char"), gh_int2scm (code), - SCM_UNDEFINED); - at = fontify_atom (this, at); - Box b = get_indexed_char (code); - return Stencil (b, at); + (void) state; + + programming_error ("Cannot get a text stencil from this font"); + return Stencil (Box (), SCM_EOL); }