From cf937095d19188bc0d7ded3041f21127f7056b38 Mon Sep 17 00:00:00 2001 From: handa Date: Wed, 29 Mar 2006 07:36:21 +0000 Subject: [PATCH] New file --- AUTHORS | 11 ++ COPYING | 504 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ChangeLog | 25 +++ INSTALL | 236 +++++++++++++++++++++++++++ Makefile.am | 23 +++ README | 133 ++++++++++++++++ bootstrap.sh | 42 +++++ configure.ac | 60 +++++++ m17n-fc.c | 425 +++++++++++++++++++++++++++++++++++++++++++++++++ 9 files changed, 1459 insertions(+) create mode 100644 AUTHORS create mode 100644 COPYING create mode 100644 ChangeLog create mode 100644 INSTALL create mode 100644 Makefile.am create mode 100644 NEWS create mode 100644 README create mode 100755 bootstrap.sh create mode 100644 configure.ac create mode 100644 m17n-fc.c diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..9450e08 --- /dev/null +++ b/AUTHORS @@ -0,0 +1,11 @@ +Kenichi Handa + Core developer. + +Mikiko Nishikimi + Core developer. + +Naoto Takahashi + Core developer. + +Satoru Tomura + Core developer. diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..b1e3f5a --- /dev/null +++ b/COPYING @@ -0,0 +1,504 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + +There may be some features `configure' cannot figure out automatically, +but needs to determine by the type of machine the package will run on. +Usually, assuming the package is built to be run on the _same_ +architectures, `configure' can figure that out, but if it prints a +message saying it cannot guess the machine type, give it the +`--build=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name which has the form: + + CPU-COMPANY-SYSTEM + +where SYSTEM can have one of these forms: + + OS KERNEL-OS + + See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the machine type. + + If you are _building_ compiler tools for cross-compiling, you should +use the `--target=TYPE' option to select the type of system they will +produce code for. + + If you want to _use_ a cross compiler, that generates code for a +platform different from the build platform, you should specify the +"host" platform (i.e., that on which the generated programs will +eventually be run) with `--host=TYPE'. + +Sharing Defaults +================ + +If you want to set default values for `configure' scripts to share, you +can create a site shell script called `config.site' that gives default +values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Defining Variables +================== + +Variables not defined in a site shell script can be set in the +environment passed to `configure'. However, some packages may run +configure again during the build, and the customized values of these +variables may be lost. In order to avoid this problem, you should set +them in the `configure' command line, using `VAR=value'. For example: + + ./configure CC=/usr/local2/bin/gcc + +causes the specified `gcc' to be used as the C compiler (unless it is +overridden in the site shell script). Here is a another example: + + /bin/bash ./configure CONFIG_SHELL=/bin/bash + +Here the `CONFIG_SHELL=/bin/bash' operand causes subsequent +configuration-related scripts to be executed by `/bin/bash'. + +`configure' Invocation +====================== + +`configure' recognizes the following options to control how it operates. + +`--help' +`-h' + Print a summary of the options to `configure', and exit. + +`--version' +`-V' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`--cache-file=FILE' + Enable the cache: use and save the results of the tests in FILE, + traditionally `config.cache'. FILE defaults to `/dev/null' to + disable caching. + +`--config-cache' +`-C' + Alias for `--cache-file=config.cache'. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`configure' also accepts some other, not widely useful, options. Run +`configure --help' for more details. + diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..db9262d --- /dev/null +++ b/Makefile.am @@ -0,0 +1,23 @@ +## Process this file with automake to create Makefile.in. + +PANGO_XTRA_CFLAGS = -DG_LOG_DOMAIN=\"Pango\" \ + -DPANGO_ENABLE_ENGINE \ + -DPANGO_ENABLE_BACKEND \ + -DG_DISABLE_DEPRECATED + +moduledir = ${pkglibdir}/${PANGO_MODULE_VERSION}/modules +module_LTLIBRARIES = m17n-pango-fc.la + +m17n_pango_fc_la_SOURCES = m17n-fc.c +m17n_pango_fc_la_CFLAGS = ${PANGO_XTRA_CFLAGS} ${PANGOFT2_CFLAGS} ${M17N_CLFAGS} +m17n_pango_fc_la_LDFLAGS = -export-dynamic -avoid-version -module +m17n_pango_fc_la_LIBADD = ${PANGOFT2_LIBS} ${M17N_LIBS} + +install-data-hook: + pango-querymodules ${moduledir}/m17n-pango-fc.so \ + > ${moduledir}/pango.modules + pango-querymodules \ + | sed -n -e '/pango-basic/p' -e '/pango-hangul/p' \ + >> ${moduledir}/pango.modules + echo "[Pango]" > ${moduledir}/pangorc + echo "ModuleFiles = ${moduledir}/pango.modules" >> ${moduledir}/pangorc diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..e69de29 diff --git a/README b/README new file mode 100644 index 0000000..02e3915 --- /dev/null +++ b/README @@ -0,0 +1,133 @@ +This directory tree holds version 0.9.0 of m17n-pango. -*- text -*- + +Copyright (C) 2006 + National Institute of Advanced Industrial Science and Technology (AIST) + Registration Number H15PRO112 +See the end for copying conditions. + +This package "m17n-pango" provides a Pango shaping module for various +scripts that requires CTL (Complex Text Layout) language. It utilizes +the rendering capability of the m17n library. + + +(1) INSTALLATION + +(1-1) From CVS working directory. + +Run the script "bootstrap.sh" in this directory. It is tested that +the script run successfully with these versions of autotools. + + libtool-1.5.6 + automake-1.9.5 + autoconf-2.59 + +Then, proceed to the next step. + +(1-2) From the tarball. + +It requires Pango (ver.1.4 or the later) and the m17n library +(ver.1.3.3 or the later). + +Type the followings on the command line. + + % ./configure + % make + % make install + +The default installation path is "/usr/local". +Thus, this loadable module is installed in /usr/local/lib/m17n-pango/1.4.0/modules + m17n-core.h, m17n.h, m17n-gui.h, m17n-err.h, m17n-X.h +These library files are installed in /usr/local/lib: + libm17n-core.{a,so*,la} + libm17n.{a,so*,la} + libm17n-gui.{a,so*,la} + libm17n-X.{a,so*,la} + libm17n-gd.{a,so*,la} + libimx-anthy.{a,so*,la}, + libimx-ispell.{a,so*,la}, +This shell script is installed in /usr/local/bin: + m17n-config +These sample programs are installed in /usr/local/bin too: + m17n-conv, m17n-date, m17n-view, m17n-dump, m17n-edit + +If you don't need GUI libraries (libm17n-gui.so and etc.), you can +instruct the `configure' script not to build them as below: + + % ./configure --without-gui + +This file under `example' sub-directory is a Japanese resource file +for m17n-edit. It is not installed but useful in Japanese locale. Copy +it to your home directory (or, for instance, +/usr/X11R6/lib/X11/ja/app-defaults) and rename it to "M17NEdit" if you +want to see labels in Japanese: + M17NEdit.ja + +These text files under `example' sub-directory are not installed but +useful for testing the rendering engine of the m17n library: + HELLO.utf8 HELLO.xml HELLO-ja.utf8 HELLO-ja.xml HELLO.html +XXX.xml are generated from XXX.utf8 by attaching text property +`language' and serializing. + +Please read also INSTALL for the generic installation instructions. + + +(2) DATABASE + +The m17n library utilizes the m17n database available at: + http://www.m17n.org/m17n-lib/m17n-db +Without this database, the m17n library loses half its value. Please +install it (Ver.1.3.3 or the later is required) too before you try the +above sample programs or develop a program that uses the m17n library. + + +(3) DOCUMENTATION + +This page has a link to full documentation of the m17n library: + http://www.m17n.org/m17n-lib + +Actually, the documentation was generated by Doxygen using comments in +the source files. There are English and Japanese comments in +parallel. + + +(4) USAGE + +The library provides three levels of APIs, CORE, SHELL, and GUI. For +CORE API, include , for SHELL API, include , and +for GUI API, include . See the documentation above, or +the manual of m17nIntro(3) for more detail. + +The shell script "m17n-config" helps compiling and linking of a +program that uses the m17n library. For instance this compiles PROG.c +that uses SHELL API and builds executable PROG. + + % gcc -o PROG `m17n-config --cflags` `m17n-config --libs` PROG.c + +This compiles PROX.c that uses GUI API and builds executable PROX. + + % gcc -o PROX `m17n-config GUI --cflags` `m17n-config GUI --libs` PROX.c + + +---------------------------------------------------------------------- +Copyright information + +Copyright (C) 2006 + National Institute of Advanced Industrial Science and Technology (AIST) + Registration Number H15PRO112 + +This file is part of m17n-pango; a sub-part of the m17n library. + +The m17n library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public License +as published by the Free Software Foundation; either version 2.1 of +the License, or (at your option) any later version. + +The m17n library 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 +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with the m17n library; if not, write to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +02111-1307, USA. diff --git a/bootstrap.sh b/bootstrap.sh new file mode 100755 index 0000000..994bf3e --- /dev/null +++ b/bootstrap.sh @@ -0,0 +1,42 @@ +#!/bin/sh +# autogen.sh -- shell script to build libotf from CVS. +# Copyright (C) 2006 +# National Institute of Advanced Industrial Science and Technology (AIST) +# Registration Number H15PRO167 +# See the end for copying conditions. + +echo "Running libtoolize..." +libtoolize --automake +echo "Running aclocal..." +aclocal +echo "Running autoheader..." +autoheader +echo "Running automake..." +automake -a -c +echo "Running autoconf..." +autoconf +echo "The remaining steps to install this library are:" +echo " % ./configure" +echo " % make" +echo " % make install" + +# Copyright (C) 2006 +# National Institute of Advanced Industrial Science and Technology (AIST) +# Registration Number H15PRO167 + +# This file is part of m17n-pango; a sub-part of the m17n library. + +# The m17n library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public License +# as published by the Free Software Foundation; either version 2.1 of +# the License, or (at your option) any later version. + +# The m17n library 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 +# Lesser General Public License for more details. + +# You should have received a copy of the GNU Lesser General Public +# License along with this library, in a file named COPYING; if not, +# write to the Free Software Foundation, Inc., 59 Temple Place, Suite +# 330, Boston, MA 02111-1307, USA diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..f90477c --- /dev/null +++ b/configure.ac @@ -0,0 +1,60 @@ +dnl configure.ac -- autoconf script for m17n-pango. + +dnl Copyright (C) 2006 +dnl National Institute of Advanced Industrial Science and Technology (AIST) +dnl Registration Number H15PRO112 + +dnl This file is part of m17n-pango; a sub-part of the m17n +dnl library. + +dnl The m17n library is free software; you can redistribute it and/or +dnl modify it under the terms of the GNU Lesser General Public License +dnl as published by the Free Software Foundation; either version 2.1 of +dnl the License, or (at your option) any later version. + +dnl The m17n library is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +dnl Lesser General Public License for more details. + +dnl You should have received a copy of the GNU Lesser General Public +dnl License along with the m17n library; if not, write to the Free +dnl Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +dnl 02111-1307, USA. + +dnl Process this file with autoconf to produce a configure script. + +AC_INIT(m17n-pango, 0.9.0, m17n-lib-bug@m17n.org) +AM_INIT_AUTOMAKE +AM_CONFIG_HEADER(config.h) + +dnl Checks for programs for compiling. +AC_PROG_CC +AM_DISABLE_STATIC +AM_PROG_LIBTOOL + +dnl Checks for standard header files. +AC_HEADER_STDC + +dnl Check for m17n-lib. +PKG_CHECK_MODULES(M17N, m17n-gui >= 1.3.3) + +dnl Check for Pango. +PKG_CHECK_MODULES(PANGO, pango >= 1.4.0) +PKG_CHECK_MODULES(PANGOFT2, pangoft2 >= 1.4.0) +AC_CHECK_PROG(HAVE_PANGO_QMODULE, pango-querymodules, yes) +if test "x$HAVE_PANGO_QMODULE" != "xyes"; then + exit 1 +fi +PANGO_MODULE_VERSION=1.4.0 +AC_SUBST(PANGO_MODULE_VERSION) + +AC_CONFIG_FILES([Makefile]) + +AC_OUTPUT + +dnl Local Variables: +dnl comment-start: "dnl " +dnl comment-end: "" +dnl comment-start-skip: "\\bdnl\\b\\s *" +dnl End: diff --git a/m17n-fc.c b/m17n-fc.c new file mode 100644 index 0000000..0ff05ba --- /dev/null +++ b/m17n-fc.c @@ -0,0 +1,425 @@ +/* Pango + * m17n-fc.c: Generic shaper using the m17n library for FreeType-based backends + + Copyright (C) 2004, 2005 + National Institute of Advanced Industrial Science and Technology (AIST) + Registration Number H15PRO112 + + This file is part of the m17n library. + + The m17n library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License + as published by the Free Software Foundation; either version 2.1 of + the License, or (at your option) any later version. + + The m17n library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the m17n library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307, USA. */ + +#include + +#include +#include + +#include +#include +#include + +#include +#include + +#ifdef G_LOG_DOMAIN +#undef G_LOG_DOMAIN +#endif +#define G_LOG_DOMAIN "M17N-Pango-FC" + +/* Control printing of debug information. It is initialized from the + environment variable PANGO_M17N_FC_DEBUG. Currently, any positive + value turns on all debug messages. */ +static int debug_level; + +/* Commonly used frame on nulldevice. */ +static MFrame *frame; + +/* Initialize this module. The main task is to open a frame on + nulldevice. */ + +static void +init_module () +{ + const char *envvar = g_getenv ("PANGO_M17N_FC_DEBUG"); + MPlist *param; + MFace *face; + MFontset *fontset; + + debug_level = envvar ? atoi (envvar) : 0; + + param = mplist (); + face = mface (); + fontset = (mdatabase_find (Mfontset, msymbol ("generic"), Mnil, Mnil) + ? mfontset ("generic") : mfontset (NULL)); + mface_put_prop (face, Mfontset, fontset); + mplist_put (param, Mface, face); + mplist_put (param, Mdevice, Mnil); + frame = mframe (param); + m17n_object_unref (fontset); + m17n_object_unref (face); + m17n_object_unref (param); +} + +/* Finalize this module by freeing frame. */ + +static void +fini_module () +{ + m17n_object_unref (frame); +} + +/* No extra fields needed for these structures. */ +typedef PangoEngineShape M17NEngineFc; +typedef PangoEngineShapeClass M17NEngineFcClass; + +#define SCRIPT_ENGINE_NAME "M17NScriptEngineFc" +#define RENDER_TYPE PANGO_RENDER_TYPE_FC + +static PangoEngineScriptInfo m17n_scripts[] = { + { PANGO_SCRIPT_ARABIC, "*" }, + { PANGO_SCRIPT_BENGALI, "*" }, + { PANGO_SCRIPT_DEVANAGARI, "*" }, + { PANGO_SCRIPT_ETHIOPIC, "*" }, + { PANGO_SCRIPT_GEORGIAN, "*" }, + { PANGO_SCRIPT_GUJARATI, "*" }, + { PANGO_SCRIPT_GURMUKHI, "*" }, + { PANGO_SCRIPT_HEBREW, "*" }, + { PANGO_SCRIPT_KANNADA, "*" }, + { PANGO_SCRIPT_KHMER, "*" }, + { PANGO_SCRIPT_LAO, "*" }, + { PANGO_SCRIPT_MALAYALAM, "*" }, + { PANGO_SCRIPT_MYANMAR, "*" }, + { PANGO_SCRIPT_ORIYA, "*" }, + { PANGO_SCRIPT_SINHALA, "*" }, + { PANGO_SCRIPT_SYRIAC, "*" }, + { PANGO_SCRIPT_TAMIL, "*" }, + { PANGO_SCRIPT_TELUGU, "*" }, + { PANGO_SCRIPT_THAANA, "*" }, + { PANGO_SCRIPT_THAI, "*" }, + { PANGO_SCRIPT_TIBETAN, "*" }, +}; + +static PangoEngineInfo script_engines[] = { + { + SCRIPT_ENGINE_NAME, + PANGO_ENGINE_TYPE_SHAPE, + RENDER_TYPE, + m17n_scripts, G_N_ELEMENTS (m17n_scripts) + } +}; + + +/* Convert PANGO_LANGUAGE to m17n-lib's language symbol. If m17n-lib + doesn't know about PANGO_LANGUAGE, return Mnil. */ + +static MSymbol +m17n_fc_get_language (PangoLanguage *pango_language) +{ + MSymbol language; + + if (pango_language) + { + const char *lang = pango_language_to_string (pango_language); + + language = msymbol (lang); + if (! msymbol_get (language, Mlanguage)) + { + if (strlen (lang) <= 2) + language = Mnil; + else + { + /* Remove region part (e.g. "zh_CN" -> "zh"). */ + char shortlang[3]; + + shortlang[0] = lang[0], shortlang[1] = lang[1], shortlang[2] = 0; + language = msymbol (shortlang); + if (! msymbol_get (language, Mlanguage)) + language = Mnil; + } + } + } + else + language = Mnil; + return language; +} + +/* Shaper function. */ + +static void +m17n_fc_engine_shape (PangoEngineShape *engine, + PangoFont *pango_font, + const char *text, + gint length, + PangoAnalysis *analysis, + PangoGlyphString *glyphs) +{ + /* Symbols for character property `category'. */ + static MSymbol MZs, MCf; + static MDrawControl control; + MSymbol language; + PangoGlyphInfo *g; + MText *mt; + MDrawGlyph *m_glyphs; + int nchars, nglyphs; + PangoFcFont *fc_font; + char *fontname; + MFont *font; + int i; + const char *p; + int *offsets; + + g_return_if_fail (pango_font != NULL); + g_return_if_fail (text != NULL); + g_return_if_fail (length >= 0); + g_return_if_fail (analysis != NULL); + + if (debug_level > 0) + { + char *msg = alloca (length + 1); + + if (msg) + { + memcpy (msg, text, length); + msg[length] = '\0'; + } + else + msg = "..."; + g_debug ("shape \"%s\"", msg); + } + + if (! MZs) + { + MZs = msymbol ("Zs"); + MCf = msymbol ("Cf"); + } + + language = m17n_fc_get_language (analysis->language); + + mt = mtext_from_data (text, length, MTEXT_FORMAT_UTF_8); + nchars = mtext_len (mt); + offsets = alloca (sizeof (int) * nchars); + g_return_if_fail (offsets != NULL); + for (i = 0, p = text; i < nchars; i++, p = g_utf8_next_char (p)) + offsets[i] = p - text; + + fc_font = PANGO_FC_FONT (pango_font); + fontname = (char *) FcNameUnparse (fc_font->font_pattern); + font = mfont_parse_name (fontname, Mfontconfig); + free (fontname); + { + FcChar8 *filename; + int size; + + if (FcPatternGetString (fc_font->font_pattern, FC_FILE, 0, &filename) + == FcResultMatch) + mfont_put_prop (font, Mfontfile, msymbol ((char *) filename)); + size = (int) mfont_get_prop (font, Msize); + if (size) + mfont_put_prop (font, Msize, (void *) (size * 256)); + if (debug_level > 0) + g_debug (" by %s", (char *) filename); + } + + mtext_put_prop (mt, 0, nchars, Mfont, font); + if (language != Mnil) + mtext_put_prop (mt, 0, nchars, Mlanguage, language); + + control.enable_bidi = 1; + m_glyphs = alloca (sizeof (MDrawGlyph) * nchars * 2); + g_return_if_fail (m_glyphs != NULL); + if (mdraw_glyph_list (frame, mt, 0, nchars, &control, m_glyphs, + nchars * 2, &nglyphs) < 0) + { + m_glyphs = alloca (sizeof (MDrawGlyph) * nglyphs); + g_return_if_fail (m_glyphs != NULL); + mdraw_glyph_list (frame, mt, 0, nchars, &control, m_glyphs, + nglyphs, &nglyphs); + } + + pango_glyph_string_set_size (glyphs, nglyphs); + + for (i = 0, g = glyphs->glyphs; i < nglyphs; i++, g++) + { + if (m_glyphs[i].glyph_code >= 0) + { + g->glyph = m_glyphs[i].glyph_code; + g->geometry.x_offset = m_glyphs[i].x_off * PANGO_SCALE / 256; + g->geometry.y_offset = m_glyphs[i].y_off * PANGO_SCALE / 256; + g->geometry.width = m_glyphs[i].x_advance * PANGO_SCALE / 256; + } + else + { + int c = mtext_ref_char (mt, m_glyphs[i].from); + MSymbol category = mchar_get_prop (c, Mcategory); + PangoRectangle logical_rect; + + if (category == MZs) + { + g->glyph = 0; + g->geometry.width = m_glyphs[i].x_advance * PANGO_SCALE / 256; + } + else if (category == MCf) + { + g->glyph = 0; + g->geometry.width = 0; + } + else + { + g->glyph = pango_fc_font_get_unknown_glyph (fc_font, c); + pango_font_get_glyph_extents (pango_font, g->glyph, NULL, + &logical_rect); + g->geometry.width = logical_rect.width; + } + g->geometry.x_offset = 0; + g->geometry.y_offset = 0; + } + g->attr.is_cluster_start + = (i == 0 + || m_glyphs[i - 1].from != m_glyphs[i].from); + glyphs->log_clusters[i] = offsets[m_glyphs[i].from]; + } + + m17n_object_unref (mt); + free (font); +} + +/* Check if PANGO_FONT is suitable for the character WC. */ + +static PangoCoverageLevel +m17n_fc_engine_covers (PangoEngineShape *engine, + PangoFont *pango_font, + PangoLanguage *pango_language, + gunichar wc) +{ + static gunichar last_wc = 0; + /* Symbols for character property `script'. */ + static MSymbol Mlatin, Mcommon, Minherited; + PangoCoverage *coverage; + PangoCoverageLevel result; + PangoFcFont *fc_font; + char *fontname; + MFont *font; + MSymbol script, language; + int check_result; + + if (! Mlatin) + { + Mlatin = msymbol ("latin"); + Mcommon = msymbol ("common"); + Minherited = msymbol ("inherited"); + } + + if (debug_level > 0 && wc != last_wc) + { + g_debug ("covers for U+%04X", wc); + last_wc = wc; + } + + coverage = pango_font_get_coverage (pango_font, pango_language); + result = pango_coverage_get (coverage, wc); + pango_coverage_unref (coverage); + + if (result == PANGO_COVERAGE_NONE) + { + if (debug_level > 0) + { + fc_font = PANGO_FC_FONT (pango_font); + fontname = (char *) FcNameUnparse (fc_font->font_pattern); + font = mfont_parse_name (fontname, Mfontconfig); + g_debug (" %s none", + msymbol_name (mfont_get_prop (font, Mfamily))); + free (fontname); + free (font); + } + return result; + } + + fc_font = PANGO_FC_FONT (pango_font); + fontname = (char *) FcNameUnparse (fc_font->font_pattern); + font = mfont_parse_name (fontname, Mfontconfig); + + if (wc < 0x100) + script = Mlatin; + else + { + script = mchar_get_prop ((int) wc, Mscript); + if (script == Mcommon || script == Minherited) + script = mchar_get_prop ((int) wc, msymbol ("block")); + } + language = m17n_fc_get_language (pango_language); + + check_result = mfont_check (frame, NULL, script, language, font); + if (debug_level > 0) + { + char *result_text = (check_result == 2 ? "exact" + : check_result == 1 ? "approximate" + : "fallback"); + + g_debug (" (%s,%s): %s %s", + (script ? msymbol_name (script) : ""), + (language ? msymbol_name (language) : ""), + msymbol_name (mfont_get_prop (font, Mfamily)), + result_text); + } + + free (fontname); + free (font); + return (check_result == 2 ? PANGO_COVERAGE_EXACT + : check_result == 1 ? PANGO_COVERAGE_APPROXIMATE + : PANGO_COVERAGE_FALLBACK); +} + +static void +m17n_engine_fc_class_init (PangoEngineShapeClass *class) +{ + class->script_shape = m17n_fc_engine_shape; + class->covers = m17n_fc_engine_covers; +} + +PANGO_ENGINE_SHAPE_DEFINE_TYPE (M17NEngineFc, m17n_engine_fc, + m17n_engine_fc_class_init, NULL) + +void +PANGO_MODULE_ENTRY(init) (GTypeModule *module) +{ + m17n_engine_fc_register_type (module); + + M17N_INIT (); + init_module (); +} + +void +PANGO_MODULE_ENTRY(exit) (void) +{ + fini_module (); + M17N_FINI (); +} + +void +PANGO_MODULE_ENTRY(list) (PangoEngineInfo **engines, + int *n_engines) +{ + *engines = script_engines; + *n_engines = G_N_ELEMENTS (script_engines); +} + +PangoEngine * +PANGO_MODULE_ENTRY(create) (const char *id) +{ + return (!strcmp (id, SCRIPT_ENGINE_NAME) + ? g_object_new (m17n_engine_fc_type, NULL) + : NULL); +} -- 1.7.10.4