X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ffont-metric.cc;h=2f61d53f3fb821746b6a64e29b98d6a867b1cbdd;hb=8cf69a467ad7650f5ca9da6fe2dfd4c7c088b239;hp=63f45abe96860d4312b201228c0ec87f58c3be5d;hpb=65be52562bbf547e4083de5779f4ed0978aa8383;p=lilypond.git diff --git a/lily/font-metric.cc b/lily/font-metric.cc index 63f45abe96..77f02df579 100644 --- a/lily/font-metric.cc +++ b/lily/font-metric.cc @@ -1,53 +1,57 @@ -/* - 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 + + 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 "font-metric.hh" -#include +#include #include +using namespace std; +#include "dimensions.hh" #include "modified-font-metric.hh" -#include "virtual-methods.hh" -#include "warn.hh" +#include "open-type-font.hh" #include "stencil.hh" +#include "warn.hh" -#include "ly-smobs.icc" Real Font_metric::design_size () const { - return 1.0; -} - -String -Font_metric::coding_scheme () const -{ - return "FontSpecific"; + return 1.0 * point_constant; } Stencil -Font_metric::find_by_name (String s) const +Font_metric::find_by_name (string s) const { - s = s.substituted ('-', "M"); + 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 ("char"), - self_scm (), - scm_int2num (index_to_ascii (idx))); - b = get_indexed_char (idx); + 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; } @@ -55,45 +59,32 @@ Font_metric::find_by_name (String s) const Font_metric::Font_metric () { description_ = SCM_EOL; - self_scm_ = SCM_EOL; smobify_self (); } Font_metric::Font_metric (Font_metric const &) + : Smob () { } - Font_metric::~Font_metric () { } -int +size_t Font_metric::count () const { return 0; } -Box -Font_metric::get_ascii_char (int) const +Box +Font_metric::get_indexed_char_dimensions (size_t) const { return Box (Interval (0, 0), Interval (0, 0)); } -Box -Font_metric::get_indexed_char (int k) const -{ - return get_ascii_char (k); -} - -int -Font_metric::name_to_index (String) const -{ - return -1; -} - Offset -Font_metric::get_indexed_wxwy (int) const +Font_metric::get_indexed_wxwy (size_t) const { return Offset (0, 0); } @@ -104,174 +95,64 @@ 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?"); - - -LY_DEFINE (ly_font_get_glyph, "ly:font-get-glyph", - 2, 0, 0, - (SCM font, SCM name), - "Return a Stencil from @var{font} for the glyph named @var{name}. " - "@var{font} must be available as an AFM file. If the glyph " - "is not available, return @code{#f}.") -{ - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - SCM_ASSERT_TYPE (scm_is_string (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 (); -} - -LY_DEFINE (ly_get_glyph, "ly:get-glyph", - 2, 0, 0, - (SCM font, SCM index), - "Retrieve a Stencil for the glyph numbered @var{index} " - "in @var{font}.") -{ - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - SCM_ASSERT_TYPE (scm_is_number (index), index, SCM_ARG2, __FUNCTION__, "number"); - - return fm->get_ascii_char_stencil (scm_to_int (index)).smobbed_copy (); -} - -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.") +SCM +Font_metric::font_file_name () const { - Box b; - Modified_font_metric*fm = dynamic_cast - (unsmob_metrics (font)); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "modified font metric"); - SCM_ASSERT_TYPE (scm_is_string (text), text, SCM_ARG2, __FUNCTION__, "string"); - - b = fm->text_dimension (ly_scm2string (text)); - - return scm_cons (ly_interval2scm (b[X_AXIS]), ly_interval2scm (b[Y_AXIS])); + return scm_car (description_); } -LY_DEFINE (ly_font_file_name,"ly:font-file-name", - 1, 0, 0, - (SCM font), - "Given the font metric @var{font}, " - "return the corresponding file name.") +string +Font_metric::font_name () const { - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - return scm_car (fm->description_); + string s ("unknown"); + return s; } - -#include "afm.hh" - -LY_DEFINE (ly_font_name,"ly:font-name", - 1, 0, 0, - (SCM font), - "Given the font metric @var{font}, " - "return the corresponding name.") +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"); - - - if (Modified_font_metric* mfm = dynamic_cast (fm)) - return ly_font_name (mfm->original_font ()->self_scm ()); - else if (Adobe_font_metric* afm = dynamic_cast (fm)) - { - return scm_makfrom0str (afm->font_info_->gfi->fontName); - } - else - return SCM_BOOL_F; -} - - - -LY_DEFINE (ly_font_magnification,"ly:font-magnification", 1 , 0, 0, - (SCM font), - "Given the font metric @var{font}, return the " - "magnification, relative to the current outputscale.") -{ - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - return scm_cdr (fm->description_); -} - -LY_DEFINE (ly_font_design_size,"ly:font-design-size", 1 , 0, 0, - (SCM font), - "Given the font metric @var{font}, return the " - "design size, relative to the current outputscale.") -{ - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - return scm_make_real (fm->design_size ()); + return i; } - - -int -Font_metric::index_to_ascii (int i) const +Offset +Font_metric::attachment_point (const string&) const { - return i; + return Offset (0, 0); } -Stencil -Font_metric::get_ascii_char_stencil (int code) const +SCM +Font_metric::sub_fonts () const { - SCM at = scm_list_3 (ly_symbol2scm ("char"), - this->self_scm (), - scm_int2num (code)); - 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 { - int idx = index_to_ascii (code); - SCM at = scm_list_3 (ly_symbol2scm ("char"), self_scm (), scm_int2num (idx)); - Box b = get_indexed_char (code); - return Stencil (b, at); -} + (void) state; -int -/*Font_metric::*/ -get_encoded_index (Font_metric *m, String input_coding, int code) -{ - String font_coding = m->coding_scheme (); - if (font_coding == input_coding) - return code; - SCM s = scm_call_3 (ly_scheme_function ("encoded-index"), - scm_makfrom0str (input_coding.to_str0 ()), - scm_makfrom0str (font_coding.to_str0 ()), - scm_int2num (code)); - return scm_to_int (s); + programming_error ("Cannot get a text stencil from this font"); + return Stencil (Box (), SCM_EOL); }