/*
- text-interface.cc -- implement Text_interface
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 1998--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Copyright (C) 1998--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
+
+ 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 <http://www.gnu.org/licenses/>.
*/
#include "text-interface.hh"
-#include <math.h>
-
-#include "main.hh"
#include "config.hh"
-#include "pango-font.hh"
-#include "warn.hh"
-#include "grob.hh"
#include "font-interface.hh"
-#include "output-def.hh"
+#include "grob.hh"
+#include "main.hh"
+#include "misc.hh"
#include "modified-font-metric.hh"
+#include "output-def.hh"
+#include "pango-font.hh"
+#include "warn.hh"
+
+static void
+replace_whitespace (string *str)
+{
+ vsize i = 0;
+ vsize n = str->size ();
+
+ while (i < n)
+ {
+ char cur = (*str)[i];
+
+ // avoid the locale-dependent isspace
+ if (cur == '\n' || cur == '\t' || cur == '\v')
+ (*str)[i] = ' ';
+
+ vsize char_len = utf8_char_len (cur);
+
+ i += char_len;
+ }
+}
MAKE_SCHEME_CALLBACK (Text_interface, interpret_string, 3);
SCM
SCM props,
SCM markup)
{
+ LY_ASSERT_SMOB (Output_def, layout_smob, 1);
+ LY_ASSERT_TYPE (scm_is_string, markup, 3);
+
+ string str = ly_scm2string (markup);
Output_def *layout = unsmob_output_def (layout_smob);
+ Font_metric *fm = select_encoded_font (layout, props);
- SCM_ASSERT_TYPE (layout, layout_smob, SCM_ARG1,
- __FUNCTION__, "Layout definition");
- SCM_ASSERT_TYPE (scm_is_string (markup), markup, SCM_ARG3,
- __FUNCTION__, "string");
+ replace_whitespace (&str);
- String str = ly_scm2string (markup);
+ /*
+ We want to filter strings with a music font that pass through
+ the text interface. Here the font encoding is checked to see
+ if it matches one of the music font encodings. --pmccarty
+ */
+ SCM encoding = ly_chain_assoc_get (ly_symbol2scm ("font-encoding"),
+ props,
+ SCM_BOOL_F);
+ SCM music_encodings = ly_lily_module_constant ("all-music-font-encodings");
- Font_metric *fm = select_encoded_font (layout, props);
- return fm->text_stencil (str).smobbed_copy ();
+ bool is_music = (scm_memq (encoding, music_encodings) != SCM_BOOL_F);
+ return fm->text_stencil (layout, str, is_music).smobbed_copy ();
}
-MAKE_SCHEME_CALLBACK (Text_interface, interpret_markup, 3);
+MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Text_interface, interpret_markup, 3, 0,
+ "Convert a text markup into a stencil."
+" Takes three arguments, @var{layout}, @var{props}, and @var{markup}.\n"
+"\n"
+"@var{layout} is a @code{\\layout} block; it may be obtained from a grob with"
+" @code{ly:grob-layout}. @var{props} is an alist chain, i.e. a list of"
+" alists. This is typically obtained with"
+" @code{(ly:grob-alist-chain grob (ly:output-def-lookup layout 'text-font-defaults))}."
+" @var{markup} is the markup text to be processed.");
SCM
Text_interface::interpret_markup (SCM layout_smob, SCM props, SCM markup)
{
}
else
{
- programming_error ("not a markup: ");
+ programming_error ("Object is not a markup. ");
+ scm_puts ("This object should be a markup: ", scm_current_error_port ());
scm_display (markup, scm_current_error_port ());
- assert (false);
+ scm_puts ("\n", scm_current_error_port ());
+
Box b;
b[X_AXIS].set_empty ();
b[Y_AXIS].set_empty ();
SCM t = me->get_property ("text");
SCM chain = Font_interface::text_font_alist_chain (me);
- return interpret_markup (me->get_layout ()->self_scm (), chain, t);
+ return interpret_markup (me->layout ()->self_scm (), chain, t);
}
/* Ugh. Duplicated from Scheme. */
ly_symbol2scm ("markup-signature"))));
}
-ADD_INTERFACE (Text_interface, "text-interface",
- "A scheme markup text, see @usermanref{Text markup}.",
- "text baseline-skip word-space");
+bool
+Text_interface::is_markup_list (SCM x)
+{
+ SCM music_list_p = ly_lily_module_constant ("markup-list?");
+ return scm_is_true (scm_call_1 (music_list_p, x));
+}
+
+
+ADD_INTERFACE (Text_interface,
+ "A Scheme markup text, see @ruser{Formatting text} and"
+ " @rextend{New markup command definition}.\n"
+ "\n"
+ "There are two important commands:"
+ " @code{ly:text-interface::print}, which is a"
+ " grob callback, and"
+ " @code{ly:text-interface::interpret-markup}.",
+
+ /* properties */
+ "baseline-skip "
+ "text "
+ "word-space "
+ "text-direction "
+ );
projects / lilypond.git / blobdiff