AM_CONDITIONAL(HAVE_CAIRO_ATSUI, $have_cairo_atsui)
-harfbuzz_required=0.1
+harfbuzz_required=0.2
PKG_CHECK_MODULES(HARFBUZZ, harfbuzz >= $harfbuzz_required, have_harfbuzz=true, have_harfbuzz=false)
AM_CONDITIONAL(HAVE_HARFBUZZ, $have_harfbuzz)
#
# Modules to build
#
-arabic_modules="arabic-fc,arabic-lang"
+arabic_modules="arabic-lang"
basic_modules="basic-fc,basic-win32,basic-x,basic-atsui"
hangul_modules="hangul-fc"
hebrew_modules="hebrew-fc"
indic_modules="indic-fc,indic-lang"
khmer_modules="khmer-fc"
-syriac_modules="syriac-fc"
thai_modules="thai-fc"
tibetan_modules="tibetan-fc"
thai_modules="$thai_modules,thai-lang"
fi
-all_modules="$arabic_modules,$basic_modules,$hangul_modules,$hebrew_modules,$indic_modules,$khmer_modules,$syriac_modules,$thai_modules,$tibetan_modules"
+all_modules="$arabic_modules,$basic_modules,$hangul_modules,$hebrew_modules,$indic_modules,$khmer_modules,$thai_modules,$tibetan_modules"
#
# Allow building some or all modules included
done
IFS="$pango_save_ifs"
-AM_CONDITIONAL(INCLUDE_ARABIC_FC, echo $included_modules | egrep '(^|,)arabic-fc($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_ARABIC_LANG, echo $included_modules | egrep '(^|,)arabic-lang($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_BASIC_FC, echo $included_modules | egrep '(^|,)basic-fc($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_BASIC_WIN32, echo $included_modules | egrep '(^|,)basic-win32($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_INDIC_FC, echo $included_modules | egrep '(^|,)indic-fc($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_INDIC_LANG, echo $included_modules | egrep '(^|,)indic-lang($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_KHMER_FC, echo $included_modules | egrep '(^|,)khmer-fc($|,)' > /dev/null)
-AM_CONDITIONAL(INCLUDE_SYRIAC_FC, echo $included_modules | egrep '(^|,)syriac-fc($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_THAI_FC, echo $included_modules | egrep '(^|,)thai-fc($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_THAI_LANG, echo $included_modules | egrep '(^|,)thai-lang($|,)' > /dev/null)
AM_CONDITIONAL(INCLUDE_TIBETAN_FC, echo $included_modules | egrep '(^|,)tibetan-fc($|,)' > /dev/null)
-AM_CONDITIONAL(DYNAMIC_ARABIC_FC, echo $dynamic_modules | egrep '(^|,)arabic-fc($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_ARABIC_LANG, echo $dynamic_modules | egrep '(^|,)arabic-lang($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_BASIC_FC, echo $dynamic_modules | egrep '(^|,)basic-fc($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_BASIC_WIN32, echo $dynamic_modules | egrep '(^|,)basic-win32($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_INDIC_FC, echo $dynamic_modules | egrep '(^|,)indic-fc($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_INDIC_LANG, echo $dynamic_modules | egrep '(^|,)indic-lang($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_KHMER_FC, echo $dynamic_modules | egrep '(^|,)khmer-fc($|,)' > /dev/null)
-AM_CONDITIONAL(DYNAMIC_SYRIAC_FC, echo $dynamic_modules | egrep '(^|,)syriac-fc($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_THAI_FC, echo $dynamic_modules | egrep '(^|,)thai-fc($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_THAI_LANG, echo $dynamic_modules | egrep '(^|,)thai-lang($|,)' > /dev/null)
AM_CONDITIONAL(DYNAMIC_TIBETAN_FC, echo $dynamic_modules | egrep '(^|,)tibetan-fc($|,)' > /dev/null)
dnl ********************************************************
# Note that -module isn't included here since automake needs to see it to know
-# that something like pango-arabic-fc.la is a valid libtool archive
+# that something like pango-basic-fc.la is a valid libtool archive
#
LIBRARY_LIBTOOL_OPTIONS="-version-info $VERSION_INFO"
MODULE_LIBTOOL_OPTIONS="-export-dynamic -avoid-version"
modules/hebrew/Makefile
modules/indic/Makefile
modules/khmer/Makefile
-modules/syriac/Makefile
modules/thai/Makefile
modules/tibetan/Makefile
examples/Makefile
hebrew \
indic \
khmer \
- syriac \
thai \
tibetan
include $(top_srcdir)/modules/Module.mk
-if HAVE_FREETYPE
-INCLUDES += $(FREETYPE_CFLAGS)
-if INCLUDE_ARABIC_FC
-noinst_LTLIBRARIES += libpango-arabic-fc.la
-else
-if DYNAMIC_ARABIC_FC
-module_LTLIBRARIES += pango-arabic-fc.la
-endif
-endif
-endif
-
-fc_sources = \
- arabic-fc.c \
- arabic-ot.c \
- arabic-ot.h
-
-pango_arabic_fc_la_LDFLAGS = -module $(MODULE_LIBTOOL_OPTIONS)
-pango_arabic_fc_la_LIBADD = $(pangoft2libs)
-pango_arabic_fc_la_SOURCES = $(fc_sources)
-libpango_arabic_fc_la_SOURCES = $(fc_sources)
-libpango_arabic_fc_la_CFLAGS = -DPANGO_MODULE_PREFIX=_pango_arabic_fc
-
if INCLUDE_ARABIC_LANG
noinst_LTLIBRARIES += libpango-arabic-lang.la
+++ /dev/null
-/* Pango
- * arabic-fc.c: Arabic shaper for FreeType-based backends
- *
- * Copyright (C) 2000, 2003, 2007 Red Hat Software
- * Authors:
- * Owen Taylor <otaylor@redhat.com>
- * Behdad Esfahbod <behdad@behdad.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include <string.h>
-
-#include "arabic-ot.h"
-
-#include "pango-engine.h"
-#include "pango-utils.h"
-#include "pangofc-font.h"
-
-/* No extra fields needed */
-typedef PangoEngineShape ArabicEngineFc;
-typedef PangoEngineShapeClass ArabicEngineFcClass ;
-
-#define SCRIPT_ENGINE_NAME "ArabicScriptEngineFc"
-#define RENDER_TYPE PANGO_RENDER_TYPE_FC
-
-static PangoEngineScriptInfo arabic_scripts[] = {
- { PANGO_SCRIPT_ARABIC, "*" },
- { PANGO_SCRIPT_NKO, "*" }
-};
-
-static PangoEngineInfo script_engines[] = {
- {
- SCRIPT_ENGINE_NAME,
- PANGO_ENGINE_TYPE_SHAPE,
- RENDER_TYPE,
- arabic_scripts, G_N_ELEMENTS(arabic_scripts)
- }
-};
-
-static const PangoOTFeatureMap gsub_features[] =
-{
- {"ccmp", PANGO_OT_ALL_GLYPHS},
- {"locl", PANGO_OT_ALL_GLYPHS},
- {"isol", isolated},
- {"fina", final},
- {"medi", medial},
- {"init", initial},
- {"rlig", PANGO_OT_ALL_GLYPHS},
- {"calt", PANGO_OT_ALL_GLYPHS},
- {"liga", PANGO_OT_ALL_GLYPHS},
- /* 'dlig' should be turned-on/off-able. lets turn off for now. */
- /* {"dlig", PANGO_OT_ALL_GLYPHS}, */
- {"cswh", PANGO_OT_ALL_GLYPHS},
- {"mset", PANGO_OT_ALL_GLYPHS}
-};
-
-static const PangoOTFeatureMap gpos_features[] =
-{
- {"curs", PANGO_OT_ALL_GLYPHS},
- {"kern", PANGO_OT_ALL_GLYPHS},
- {"mark", PANGO_OT_ALL_GLYPHS},
- {"mkmk", PANGO_OT_ALL_GLYPHS}
-};
-
-static void
-arabic_engine_shape (PangoEngineShape *engine G_GNUC_UNUSED,
- PangoFont *font,
- const char *text,
- gint length,
- const PangoAnalysis *analysis,
- PangoGlyphString *glyphs)
-{
- PangoFcFont *fc_font;
- FT_Face face;
- PangoOTRulesetDescription desc;
- const PangoOTRuleset *ruleset;
- PangoOTBuffer *buffer;
- gulong *properties = NULL;
- glong n_chars;
- gunichar *wcs;
- const char *p;
- int cluster = 0;
- gboolean rtl = analysis->level % 2 != 0;
- gboolean reverse;
- int i;
-
- g_return_if_fail (font != NULL);
- g_return_if_fail (text != NULL);
- g_return_if_fail (length >= 0);
- g_return_if_fail (analysis != NULL);
-
- fc_font = PANGO_FC_FONT (font);
- face = pango_fc_font_lock_face (fc_font);
- if (!face)
- return;
-
- buffer = pango_ot_buffer_new (fc_font);
- pango_ot_buffer_set_rtl (buffer, rtl);
- pango_ot_buffer_set_zero_width_marks (buffer, TRUE);
-
- wcs = g_utf8_to_ucs4_fast (text, length, &n_chars);
- properties = g_new0 (gulong, n_chars);
-
- reverse = !rtl ^ (analysis->gravity == PANGO_GRAVITY_NORTH || analysis->gravity == PANGO_GRAVITY_WEST);
- Arabic_Assign_Properties (wcs, properties, n_chars, reverse);
-
- g_free (wcs);
-
- p = text;
- for (i=0; i < n_chars; i++)
- {
- gunichar wc;
- PangoGlyph glyph;
-
- wc = g_utf8_get_char (p);
-
- if (g_unichar_type (wc) != G_UNICODE_NON_SPACING_MARK)
- cluster = p - text;
-
- if (pango_is_zero_width (wc))
- glyph = PANGO_GLYPH_EMPTY;
- else
- {
- gunichar c = wc;
-
- if (analysis->level % 2)
- g_unichar_get_mirror_char (c, &c);
-
- /* Hack - Microsoft fonts are strange and don't contain the
- * correct rules to shape ARABIC LETTER FARSI YEH in
- * medial/initial position. It looks identical to ARABIC LETTER
- * YEH in these positions, so we substitute if the font contains
- * ARABIC LETTER YEH
- */
- if (c == 0x6cc &&
- ((properties[i] & (initial | medial)) != (initial | medial)) &&
- pango_fc_font_has_char (fc_font, 0x64a))
- c = 0x64a;
-
- glyph = pango_fc_font_get_glyph (fc_font, c);
- }
-
- if (!glyph)
- glyph = PANGO_GET_UNKNOWN_GLYPH (wc);
-
- pango_ot_buffer_add_glyph (buffer, glyph, properties[i], cluster);
-
- p = g_utf8_next_char (p);
- }
-
- g_free (properties);
-
- desc.script = analysis->script;
- desc.language = analysis->language;
-
- desc.n_static_gsub_features = G_N_ELEMENTS (gsub_features);
- desc.static_gsub_features = gsub_features;
- desc.n_static_gpos_features = G_N_ELEMENTS (gpos_features);
- desc.static_gpos_features = gpos_features;
-
- /* TODO populate other_features from analysis->extra_attrs */
- desc.n_other_features = 0;
- desc.other_features = NULL;
-
- ruleset = pango_ot_ruleset_get_for_description (pango_ot_info_get (face), &desc);
-
- pango_ot_ruleset_substitute (ruleset, buffer);
- pango_ot_ruleset_position (ruleset, buffer);
- pango_ot_buffer_output (buffer, glyphs);
-
- pango_ot_buffer_destroy (buffer);
-
- pango_fc_font_unlock_face (fc_font);
-}
-
-static void
-arabic_engine_fc_class_init (PangoEngineShapeClass *class)
-{
- class->script_shape = arabic_engine_shape;
-}
-
-PANGO_ENGINE_SHAPE_DEFINE_TYPE (ArabicEngineFc, arabic_engine_fc,
- arabic_engine_fc_class_init, NULL)
-
-void
-PANGO_MODULE_ENTRY(init) (GTypeModule *module)
-{
- arabic_engine_fc_register_type (module);
-}
-
-void
-PANGO_MODULE_ENTRY(exit) (void)
-{
-}
-
-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)
-{
- if (!strcmp (id, SCRIPT_ENGINE_NAME))
- return g_object_new (arabic_engine_fc_type, NULL);
- else
- return NULL;
-}
+++ /dev/null
-/* This file is taken from the FreeType (1) tree. It's been reindented
- * to roughly match Pango guidelines (in anticipation of future changes),
- * but not otherwise much altered.
- */
-
-/****************************************************************************/
-/* */
-/* The FreeType project -- a free and portable quality TrueType renderer. */
-/* */
-/* Copyright 1996-2000 by */
-/* D. Turner, R.Wilhelm, and W. Lemberg */
-/* */
-/* arabic -- An implementation of the contextual algorithm given in the */
-/* Unicode 2.0 book to assign the `isolated', `initial', `medial', and */
-/* `final' properties to an input string of character codes for the Arabic */
-/* script. */
-/* */
-/* This file is part of the FreeType project, and may only be used */
-/* modified and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* The code, like the FreeType code it is derived from is dual-licensed */
-/* under the GNU General Public License and the FreeType license. See */
-/* pango/opentype/COPYING for full details of this licensing scheme. */
-/****************************************************************************/
-
-#include "config.h"
-
-#include "arabic-ot.h"
-
-
-/*
- *
- * Here a table of the joining classes for characters in the range
- * U+0620 - U+06FF and U+0750 - U+077F.
- *
- * The following character also has a joining class:
- *
- * U+200D ZERO WIDTH JOINER -> causing
- *
- * All other characters are given the joining class `none'.
- *
- */
-
-static const joining_class arabic[] =
-{
- /* U+0620 */
- none, none, right, right,
- right, right, dual, right,
- dual, right, dual, dual,
- dual, dual, dual, right,
-
- /* U+0630 */
- right, right, right, dual,
- dual, dual, dual, dual,
- dual, dual, dual, none,
- none, none, none, none,
-
- /* U+0640 */
- causing, dual, dual, dual,
- dual, dual, dual, dual,
- right, dual, dual, transparent,
- transparent, transparent, transparent, transparent,
-
- /* U+0650 */
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, none,
-
- /* U+0660 */
- none, none, none, none,
- none, none, none, none,
- none, none, none, none,
- none, none, dual, dual,
-
- /* U+0670 */
- transparent, right, right, right,
- none, right, right, right,
- dual, dual, dual, dual,
- dual, dual, dual, dual,
-
- /* U+0680 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- right, right, right, right,
- right, right, right, right,
-
- /* U+0690 */
- right, right, right, right,
- right, right, right, right,
- right, right, dual, dual,
- dual, dual, dual, dual,
-
- /* U+06A0 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, dual,
-
- /* U+06B0 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, dual,
-
- /* U+06C0 */
- right, dual, right, right,
- right, right, right, right,
- right, right, right, right,
- dual, right, dual, right,
-
- /* U+06D0 */
- dual, dual, right, right,
- none, right, none, transparent,
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, transparent,
-
- /* U+06E0 */
- transparent, transparent, transparent, transparent,
- transparent, none, none, transparent,
- transparent, none, transparent, transparent,
- transparent, transparent, right, right,
-
- /* U+06F0 */
- none, none, none, none,
- none, none, none, none,
- none, none, dual, dual,
- dual, none, none, dual
-};
-
-static const joining_class arabic_supplement[] =
-{
- /* U+0750 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, right, right, right,
- dual, dual, dual, dual,
-
- /* U+0760 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, right,
- right, dual, none, none,
-
- /* U+0770 */
- none, none, none, none,
- none, none, none, none,
- none, none, none, none,
- none, none, none, none
-};
-
-/* Here a table of the joining classes for characters in the range
- * U+07C0 - U+07FF.
- *
- * The following character also has a joining class:
- *
- * U+200C ZERO WIDTH NON-JOINER -> causing
- *
- * All other characters are given the joining class `none'.
- */
-static const joining_class nko[] =
-{
- /* U+07C0 */
- none, none, none, none,
- none, none, none, none,
- none, none, dual, dual,
- dual, dual, dual, dual,
-
- /* U+07D0 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, dual,
-
- /* U+07E0 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- dual, dual, dual, transparent,
- transparent, transparent, transparent, transparent,
-
- /* U+07F0 */
- transparent, transparent, transparent, transparent,
- none, none, none, none,
- none, none, causing, none,
- none, none, none, none,
-};
-
-#if 0
-struct cgc_
-{
- FT_UShort char_code;
- FT_UShort glyph_index;
- FT_UShort class;
-};
-
-typedef struct cgc_ cgc;
-
-int compare_cgc (const void* a,
- const void* b)
-{
- return (((cgc*)a)->glyph_index > ((cgc*)b)->glyph_index) ?
- 1 : ((((cgc*)a)->glyph_index == ((cgc*)b)->glyph_index) ?
- 0 : -1);
-}
-
-
-TT_Error Build_Arabic_Glyph_Properties (TT_CharMap char_map,
- TT_UShort max_glyphs,
- TTO_GDEFHeader** gdef)
-{
- TT_UShort i, j, num_glyphs;
-
- cgc Arabic[0x0700 - 0x0620];
-
- TT_UShort glyph_indices[0x700 - 0x0620];
- TT_UShort classes[0x700 - 0x0620];
-
- if (!gdef)
- return TT_Err_Invalid_Argument;
-
- j = 0;
-
- for (i = 0x0620; i < 0x0700; i++)
- {
- Arabic[j].char_code = i;
- Arabic[j].class = (arabic[i - 0x0620] == transparent) ?
- MARK_GLYPH : SIMPLE_GLYPH;
- Arabic[j].glyph_index = TT_Char_Index (char_map, i);
- if (Arabic[j].glyph_index)
- j++;
- }
- num_glyphs = j;
-
- if (!num_glyphs)
- {
- /* no Arabic font */
- *gdef = NULL;
- return TT_Err_Ok;
- }
-
- /* sort it */
-
- qsort (Arabic, num_glyphs, sizeof (cgc), compare_cgc);
-
- /* write it to the arrays, removing duplicates */
-
- glyph_indices[0] = Arabic[0].glyph_index;
- classes[0] = Arabic[0].class;
-
- j = 1;
-
- for (i = 1; i < num_glyphs; i++)
- {
- glyph_indices[j] = Arabic[i].glyph_index;
- classes[j] = Arabic[i].class;
-
- if (glyph_indices[j - 1] != glyph_indices[j])
- j++;
- }
- num_glyphs = j;
-
- TT_GDEF_Build_ClassDefinition (*gdef, max_glyphs, num_glyphs,
- glyph_indices, classes);
-
- return TT_Err_Ok;
-}
-#endif
-
-/* The joining rules as given in the Unicode 2.0 book (characters are
- * here specified as appearing in the byte stream, i.e. *not* in
- * visual order). Joining classes are given in angle brackets, glyph
- * forms in square brackets. Glyphs affected by a specific rule are
- * enclosed with vertical bars.
- *
- * Note: The description of the joining algorithm in the book is
- * severely broken. You can get a corrected version from
- * www.unicode.org (as of 29-Jun-1999, this hasn't appeared).
- *
- * R1: <anything1> <transparent> <anything2>
- *
- * apply joining rules for
- * <anything1> <anything2> -> [shape1] [shape2]
- *
- * -> [shape1] [isolated] [shape2]
- *
- * R2: <causing|left|dual> |<right>|
- *
- * -> [final]
- *
- * R3: |<left>| <causing|right|dual>
- *
- * -> [initial]
- *
- * R4: <causing|left|dual> |<dual>| <causing|right|dual>
- *
- * -> [medial]
- *
- * R5: <causing|left|dual> |<dual>| <!(causing|right|dual)>
- *
- * -> [final]
- *
- * R6: <!(causing|left|dual)> |<dual>| <causing|right|dual>
- *
- * -> [initial]
- *
- * R7: If R1-R6 fail:
- *
- * <anything> -> [isolated]
- */
-
-/* `direction' can be -1, 0, or 1 to indicate the last non-transparent
- * glyph, the current glyph, and the next non-transparent glyph,
- * respectively.
- */
-
-static joining_class Get_Joining_Class (gunichar* string,
- int pos,
- int length,
- int direction,
- gboolean reverse)
-{
- joining_class j;
-
-
- while (1)
- {
- if (pos == 0 && direction < 0)
- return none;
-
- pos += direction;
-
- if (pos >= length)
- return none;
-
- if (string[pos] >= 0x0620 &&
- string[pos] < 0x0700)
- j = arabic[string[pos] - 0x0620];
- else if (string[pos] >= 0x0750 &&
- string[pos] < 0x0780)
- j = arabic_supplement[string[pos] - 0x0750];
- else if (string[pos] >= 0x07C0 &&
- string[pos] < 0x0800)
- j = nko[string[pos] - 0x07C0];
- else if (string[pos] == 0x200D)
- return causing;
- else
- return none;
-
- if (!direction || j != transparent)
- {
- if (G_UNLIKELY (reverse))
- return j == right ? left : j == left ? right : j;
- else
- return j;
- }
- }
-}
-
-
-FT_Error Arabic_Assign_Properties (gunichar *string,
- gulong *properties,
- int length,
- gboolean reverse)
-{
- joining_class previous, current, next;
- int i;
-
- if (!string || !properties || length == 0)
- return FT_Err_Invalid_Argument;
-
- for (i = 0; i < length; i++)
- {
- previous = Get_Joining_Class (string, i, length, -1, reverse);
- current = Get_Joining_Class (string, i, length, 0, reverse);
- next = Get_Joining_Class (string, i, length, 1, reverse);
-
- /* R1 */
-
- if (current == transparent)
- {
- properties[i] |= isolated_p;
- continue;
- }
-
- /* R2 */
-
- if (previous == causing ||
- previous == left ||
- previous == dual )
- if (current == right)
- {
- properties[i] |= reverse ? initial_p : final_p;
- continue;
- }
-
- /* R3 */
-
- if (current == left)
- if (next == causing ||
- next == right ||
- next == dual )
- {
- properties[i] |= reverse ? final_p : initial_p;
- continue;
- }
-
- /* R4 */
-
- if (previous == causing ||
- previous == left ||
- previous == dual )
- if (current == dual)
- if (next == causing ||
- next == right ||
- next == dual )
- {
- properties[i] |= medial_p;
- continue;
- }
-
- /* R5 */
-
- if (previous == causing ||
- previous == left ||
- previous == dual )
- if (current == dual)
- if (!(next == causing ||
- next == right ||
- next == dual ))
- {
- properties[i] |= reverse ? initial_p : final_p;
- continue;
- }
-
- /* R6 */
-
- if (!(previous == causing ||
- previous == left ||
- previous == dual ))
- if (current == dual)
- if (next == causing ||
- next == right ||
- next == dual )
- {
- properties[i] |= reverse ? final_p : initial_p;
- continue;
- }
-
- /* R7 */
-
- properties[i] |= isolated_p;
- }
-
- return FT_Err_Ok;
-}
-
-
-/* End */
+++ /dev/null
-/* This file is taken from the FreeType (1) tree. It's been reindented
- * to roughly match Pango guidelines (in anticipation of future changes),
- * but not otherwise much altered.
- */
-
-/****************************************************************************/
-/* */
-/* The FreeType project -- a free and portable quality TrueType renderer. */
-/* */
-/* Copyright 1996-2000 by */
-/* D. Turner, R.Wilhelm, and W. Lemberg */
-/* */
-/* arabic -- An implementation of the contextual algorithm given in the */
-/* Unicode 2.0 book to assign the `isolated', `initial', `medial', and */
-/* `final' properties to an input string of character codes for the Arabic */
-/* script. */
-/* */
-/* This file is part of the FreeType project, and may only be used */
-/* modified and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* The file LICENSE.TXT can be found in the Pango distribution as */
-/* pango/opentype/FT-license.txt */
-/****************************************************************************/
-
-#include <pango/pango-ot.h>
-
-
-enum joining_type_
-{
- isolated = 1, /* nominal */
- final = 2, /* right_joining */
- initial = 4, /* left_joining */
- medial = 8 /* double_joining */
-};
-
-typedef enum joining_type_ joining_type;
-
-
- /* A glyph's property value as needed by e.g. TT_GSUB_Apply_String()
- specifies which features should *not* be applied */
-
-enum arabic_glyph_property_
-{
- isolated_p = final | initial | medial,
- final_p = isolated | initial | medial,
- initial_p = isolated | final | medial,
- medial_p = isolated | final | initial
-};
-
-typedef enum arabic_glyph_property_ arabic_glyph_property;
-
-
-enum joining_class_
-{
- right,
- left, /* not used */
- dual,
- causing,
- none,
- transparent
-};
-
-typedef enum joining_class_ joining_class;
-
-
-FT_Error Arabic_Assign_Properties (gunichar *string,
- gulong *properties,
- int length,
- gboolean reverse);
-#if 0
-TT_Error Build_Arabic_Glyph_Properties (TT_CharMap char_map,
- TT_UShort max_glyphs,
- TTO_GDEFHeader** gdef );
-#endif
-
-
-/* End */
+++ /dev/null
-include $(top_srcdir)/modules/Module.mk
-
-if HAVE_FREETYPE
-INCLUDES += $(FREETYPE_CFLAGS)
-if INCLUDE_SYRIAC_FC
-noinst_LTLIBRARIES += libpango-syriac-fc.la
-else
-if DYNAMIC_SYRIAC_FC
-module_LTLIBRARIES += pango-syriac-fc.la
-endif
-endif
-endif
-
-fc_sources = \
- syriac-fc.c \
- syriac-ot.c \
- syriac-ot.h
-
-pango_syriac_fc_la_LDFLAGS = -module $(MODULE_LIBTOOL_OPTIONS)
-pango_syriac_fc_la_LIBADD = $(pangoft2libs)
-pango_syriac_fc_la_SOURCES = $(fc_sources)
-libpango_syriac_fc_la_SOURCES = $(fc_sources)
-libpango_syriac_fc_la_CFLAGS = -DPANGO_MODULE_PREFIX=_pango_syriac_fc
-
--include $(top_srcdir)/git.mk
+++ /dev/null
-/* Pango
- * syriac-fc.h:
- *
- * Copyright (C) 2000, 2003, 2007 Red Hat Software
- * Copyright (C) 2004 Emil Soleyman-Zomalan
- * Authors:
- * Owen Taylor <otaylor@redhat.com>
- * Emil Soleyman-Zomalan <emil@soleyman.com>
- * Behdad Esfahbod <behdad@behdad.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-#include "config.h"
-#include <string.h>
-
-#include "syriac-ot.h"
-
-#include "pango-engine.h"
-#include "pango-utils.h"
-#include "pangofc-font.h"
-
-/* No extra fields needed */
-typedef PangoEngineShape SyriacEngineFc;
-typedef PangoEngineShapeClass SyriacEngineFcClass ;
-
-#define SCRIPT_ENGINE_NAME "SyriacScriptEngineFc"
-#define RENDER_TYPE PANGO_RENDER_TYPE_FC
-
-static PangoEngineScriptInfo syriac_scripts[] = {
- { PANGO_SCRIPT_SYRIAC, "*" },
-};
-
-static PangoEngineInfo script_engines[] = {
- {
- SCRIPT_ENGINE_NAME,
- PANGO_ENGINE_TYPE_SHAPE,
- RENDER_TYPE,
- syriac_scripts, G_N_ELEMENTS(syriac_scripts)
- }
-};
-
-static const PangoOTFeatureMap gsub_features[] =
-{
- {"ccmp", PANGO_OT_ALL_GLYPHS},
- {"locl", PANGO_OT_ALL_GLYPHS},
- {"isol", isolated},
- {"fina", final},
- {"fin2", final2},
- {"fin3", final3},
- {"medi", medial},
- {"med2", medial2},
- {"init", initial},
- {"rlig", PANGO_OT_ALL_GLYPHS},
- {"calt", PANGO_OT_ALL_GLYPHS},
- {"liga", PANGO_OT_ALL_GLYPHS},
- /* 'dlig' should be turned-on/off-able. lets turn off for now. */
- /* {"dlig", PANGO_OT_ALL_GLYPHS}, */
-};
-
-static const PangoOTFeatureMap gpos_features[] =
-{
- {"kern", PANGO_OT_ALL_GLYPHS},
- {"mark", PANGO_OT_ALL_GLYPHS},
- {"mkmk", PANGO_OT_ALL_GLYPHS}
-};
-
-static void
-syriac_engine_shape (PangoEngineShape *engine G_GNUC_UNUSED,
- PangoFont *font,
- const char *text,
- gint length,
- const PangoAnalysis *analysis,
- PangoGlyphString *glyphs)
-{
- PangoFcFont *fc_font;
- FT_Face face;
- PangoOTRulesetDescription desc;
- const PangoOTRuleset *ruleset;
- PangoOTBuffer *buffer;
- gulong *properties = NULL;
- glong n_chars;
- gunichar *wcs;
- const char *p;
- int cluster = 0;
- int i;
-
- g_return_if_fail (font != NULL);
- g_return_if_fail (text != NULL);
- g_return_if_fail (length >= 0);
- g_return_if_fail (analysis != NULL);
-
- fc_font = PANGO_FC_FONT (font);
- face = pango_fc_font_lock_face (fc_font);
- if (!face)
- return;
-
- buffer = pango_ot_buffer_new (fc_font);
- pango_ot_buffer_set_rtl (buffer, analysis->level % 2 != 0);
- pango_ot_buffer_set_zero_width_marks (buffer, TRUE);
-
- wcs = g_utf8_to_ucs4_fast (text, length, &n_chars);
- properties = g_new0 (gulong, n_chars);
-
- syriac_assign_properties (wcs, properties, n_chars);
-
- g_free (wcs);
-
- p = text;
- for (i=0; i < n_chars; i++)
- {
- gunichar wc;
- PangoGlyph glyph;
-
- wc = g_utf8_get_char (p);
-
- if (g_unichar_type (wc) != G_UNICODE_NON_SPACING_MARK)
- cluster = p - text;
-
- if (pango_is_zero_width (wc))
- glyph = PANGO_GLYPH_EMPTY;
- else
- {
- gunichar c = wc;
-
- if (analysis->level % 2)
- g_unichar_get_mirror_char (c, &c);
-
- glyph = pango_fc_font_get_glyph (fc_font, c);
- }
-
- if (!glyph)
- glyph = PANGO_GET_UNKNOWN_GLYPH (wc);
-
- pango_ot_buffer_add_glyph (buffer, glyph, properties[i], cluster);
-
- p = g_utf8_next_char (p);
- }
-
- g_free (properties);
-
- desc.script = analysis->script;
- desc.language = analysis->language;
-
- desc.n_static_gsub_features = G_N_ELEMENTS (gsub_features);
- desc.static_gsub_features = gsub_features;
- desc.n_static_gpos_features = G_N_ELEMENTS (gpos_features);
- desc.static_gpos_features = gpos_features;
-
- /* TODO populate other_features from analysis->extra_attrs */
- desc.n_other_features = 0;
- desc.other_features = NULL;
-
- ruleset = pango_ot_ruleset_get_for_description (pango_ot_info_get (face), &desc);
-
- pango_ot_ruleset_substitute (ruleset, buffer);
- pango_ot_ruleset_position (ruleset, buffer);
- pango_ot_buffer_output (buffer, glyphs);
-
- pango_ot_buffer_destroy (buffer);
-
- pango_fc_font_unlock_face (fc_font);
-}
-
-static void
-syriac_engine_fc_class_init (PangoEngineShapeClass *class)
-{
- class->script_shape = syriac_engine_shape;
-}
-
-PANGO_ENGINE_SHAPE_DEFINE_TYPE (SyriacEngineFc, syriac_engine_fc,
- syriac_engine_fc_class_init, NULL)
-
-void
-PANGO_MODULE_ENTRY(init) (GTypeModule *module)
-{
- syriac_engine_fc_register_type (module);
-}
-
-void
-PANGO_MODULE_ENTRY(exit) (void)
-{
-}
-
-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)
-{
- if (!strcmp (id, SCRIPT_ENGINE_NAME))
- return g_object_new (syriac_engine_fc_type, NULL);
- else
- return NULL;
-}
+++ /dev/null
-/* Pango
- * syriac-ot.h: Determine what OpenType features to apply to characters based
- * on the rules for Syriac from the OpenType standard.
- *
- * Copyright (C) 2004 Emil Soleyman-Zomalan
- * Author: Emil Soleyman-Zomalan <emil@soleyman.com>
- *
- * This file is based on the Arabic shaping code from FreeType 1 tree; original
- * copyright notice:
- *
- * The FreeType project -- a free and portable quality TrueType renderer.
- *
- * Copyright 1996-2000 by
- * D. Turner, R.Wilhelm, and W. Lemberg
- *
- * The code, like the FreeType code it is derived from is dual-licensed
- * under the GNU General Public License and the FreeType license. See
- * pango/opentype/COPYING for full details of this licensing scheme.
- */
-#include "config.h"
-#include "syriac-ot.h"
-
-/* Here a table of the joining classes for characters in the range
- * U+0700 - U+074F.
- *
- * The following character also has a joining class:
- *
- * U+200C ZERO WIDTH NON-JOINER -> causing
- *
- * All other characters are given the joining class `none'.
- */
-static const JoiningClass syriac[] =
-{
- /* U+0700 */
- none, none, none, none,
- none, none, none, none,
- none, none, none, none,
- none, none, none, transparent,
-
- /* U+0710 */
- right, none, dual, dual,
- dual, right, right, right,
- right, right, dual, dual,
- dual, dual, right, dual,
-
- /* U+0720 */
- dual, dual, dual, dual,
- dual, dual, dual, dual,
- right, dual, right, dual,
- right, none, none, none,
-
- /* U+0730 */
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, transparent,
-
- /* U+0740 */
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, transparent,
- transparent, transparent, transparent, none,
- none, right, dual, dual
-};
-
-/* `direction' can be -1, 0, or 1 to indicate the last non-transparent
- * glyph, the current glyph, and the next non-transparent glyph,
- * respectively.
- */
-static JoiningClass
-Get_Joining_Class (gunichar* string,
- int pos,
- int length,
- int direction)
-{
- JoiningClass j;
-
- while (1)
- {
- if (pos == 0 && direction < 0)
- return none;
-
- pos += direction;
-
- if (pos >= length)
- return none;
-
- if (string[pos] < 0x0700 ||
- string[pos] >= 0x074F)
- {
- if (string[pos] == 0x200C)
- return causing;
- else
- return none;
- }
- else
- j = syriac[string[pos] - 0x0700];
-
- if (!direction || j != transparent)
- return j;
- }
-}
-
-
-/* The rules here are roughly based on the Arabic rules from the Unicode
- * 2.0 standard (which differ from the Unicode-4.0 rules), augmented
- * with the Syriac rules from the Unicode-4.0 standard. The numbers
- * R1...R11 below do not correspond to either the Arabic or the Syriac
- * rule numbering from the Unicode standard.
- *
- * Characters are here specified as appearing in the byte stream, i.e.
- * *not* in visual order. Joining classes are given in angle brackets,
- * glyph forms in square brackets. Glyphs affected by a specific rule are
- * enclosed with vertical bars.
- *
- *
- * Glyphs: 0x0715 (Dalath), 0x0716 (Dalath Rish), 0x072A (Rish),
- * 0x0722 (Nun), 0x071F (Kaph)
- *
- *
- * R1: <anything1> <transparent> <anything2>
- *
- * apply joining rules for
- * <anything1> <anything2> -> [shape1] [shape2]
- * -> [shape1] [isolated] [shape2]
- *
- *
- * R2: <causing|right> <0x0722|0x071F> <!(causing|right|dual)>
- * -> [isolated]
- *
- * The Nun and Kaph characters each have 3 different glyphs
- * with two of those glyphs coming at the final position.
- * However, one of those final glyphs should really be of the
- * isolated glyph form where the preceding character cannot be
- * joined to and there is no next character.
- *
- * This rule exists to combine similar exception for both
- * characters without increasing the complexity in the other
- * rules.
- *
- *
- * R3: <causing|right|dual> && <!(0x0715|0x0716|0x072A)> |<alaph>|
- *
- * -> [final2]
- *
- * If the preceding glyph cannot be joined to the current
- * glyph and the preceding character is not a Dalath, Rish,
- * or Dotless Dalath Rish, then the Alaph takes this contextual
- * position.
- *
- * The [final2] joining rule is placed ahead of the [final] to
- * give it greater precedence when choosing the correct glyph.
- * If it comes after the [final] rule, the incorrect glyph is
- * inserted into position.
- *
- *
- * R4: <0x0715|0x0715|0x072A> |<alaph>|
- *
- * -> [final3]
- *
- * If the previous glyph is a Dalath, Rish, or Dotless Dalath
- * Rish, then the Alaph takes this contextual position.
- *
- * The [final3] joining rule is placed ahead of the [final] to
- * give it greater precedence when choosing the correct glyph.
- * If it comes after the [final] rule, the incorrect glyph is
- * inserted into position.
- *
- *
- * R5: <causing|right|dual> |<right>|
- *
- * -> [final]
- *
- *
- * R6: <causing|right|dual> |<dual>| <!(causing|right|dual)>
- *
- * -> [final]
- *
- *
- * R7: <causing|left|dual> |<dual>| <causing|right|dual>
- *
- * -> [medial]
- *
- *
- * R8: <causing|right> |<alaph>| <causing|right|dual>
- *
- * -> [medial2]
- *
- * If the Alaph glyph falls in the middle of a Syriac word and
- * the preceding character cannot be joined to, then the Alaph
- * takes this contextual position.
- *
- *
- * R9: |<left>| <causing|right|dual>
- *
- * -> [initial]
- *
- *
- * R10: <!(causing|left|dual)> |<dual>| <causing|right|dual>
- *
- * -> [initial]
- *
- *
- * R11: <anything> -> [isolated]
- *
- * This joining rule is placed at the end of these features
- * because when it is placed at the beginning of all of them
- * it tends to break the cursive nature of Syriac writing --
- * it inserts the isolated glyph of each character into that
- * position with no joining occurring all throughout a text
- * document.
- */
-
-FT_Error
-syriac_assign_properties (gunichar *string,
- gulong *properties,
- int length)
-{
- JoiningClass previous, current, next;
- int i;
-
- if (!string || !properties || length == 0)
- return FT_Err_Invalid_Argument;
-
- for (i = 0; i < length; i++)
- {
- previous = Get_Joining_Class (string, i, length, -1);
- current = Get_Joining_Class (string, i, length, 0);
- next = Get_Joining_Class (string, i, length, 1);
-
- /* R1 */
-
- if (current == transparent)
- {
- properties[i] |= isolated_p;
- continue;
- }
-
- /* R2 */
-
- if (string[i] == 0x0722 ||
- string[i] == 0x071F)
- if (previous == causing ||
- previous == right)
- if (!(next == causing ||
- next == right ||
- next == dual))
- {
- properties[i] |= isolated_p;
- continue;
- }
-
- /* R3 */
-
- if (string[i] == 0x0710)
- if (previous == causing ||
- previous == right)
- if (!(string[i - 1] == 0x0715 ||
- string[i - 1] == 0x0716 ||
- string[i - 1] == 0x072A))
- {
- properties[i] |= final2_p;
- continue;
- }
-
- /* R4 */
-
- if (string[i] == 0x0710)
- if (previous == causing ||
- previous == right)
- if (string[i - 1] == 0x0715 ||
- string[i - 1] == 0x0716 ||
- string[i - 1] == 0x072A)
- {
- properties[i] |= final3_p;
- continue;
- }
-
- /* R5 */
-
- if (previous == causing ||
- previous == right ||
- previous == dual)
- if (current == right)
- {
- properties[i] |= final_p;
- continue;
- }
-
- /* R6 */
-
- if (previous == causing ||
- previous == right ||
- previous == dual)
- if (current == dual)
- if (!(next == causing ||
- next == right ||
- next == dual ))
- {
- properties[i] |= final_p;
- continue;
- }
-
- /* R7 */
-
- if (previous == causing ||
- previous == left ||
- previous == dual)
- if (current == dual)
- if (next == causing ||
- next == right ||
- next == dual )
- {
- properties[i] |= medial_p;
- continue;
- }
-
- /* R8 */
-
- if (string[i] == 0x0710)
- if (previous == causing ||
- previous == right)
- if (next == causing ||
- next == right ||
- next == dual)
- {
- properties[i] |= medial2_p;
- continue;
- }
-
- /* R9 */
-
- if (current == left)
- if (next == causing ||
- next == right ||
- next == dual)
- {
- properties[i] |= initial_p;
- continue;
- }
-
- /* R10 */
-
- if (!(previous == causing ||
- previous == left ||
- previous == dual ))
- if (current == dual)
- if (next == causing ||
- next == right ||
- next == dual)
- {
- properties[i] |= initial_p;
- continue;
- }
-
- /* R11 */
-
- properties[i] |= isolated_p;
- }
-
- return FT_Err_Ok;
-}
+++ /dev/null
-/* Pango
- * syriac-ot.h: Determine what OpenType features to apply to characters based
- * on the rules for Syriac from the OpenType standard.
- *
- * Copyright (C) 2004 Emil Soleyman-Zomalan
- * Author: Emil Soleyman-Zomalan <emil@soleyman.com>
- *
- * This file is based on the Arabic shaping code from FreeType 1 tree; original
- * copyright notice:
- *
- * The FreeType project -- a free and portable quality TrueType renderer.
- *
- * Copyright 1996-2000 by
- * D. Turner, R.Wilhelm, and W. Lemberg
- *
- * The code, like the FreeType code it is derived from is dual-licensed
- * under the GNU Public License and the FreeType license. See see
- * pango/opentype/FT-license.txt for full details of the FreeType
- * license.
- */
-
-#ifndef __SYRIAC_OT_H__
-#define __SYRIAC_OT_H__
-
-#include <pango/pango-ot.h>
-
-G_BEGIN_DECLS
-
-typedef enum
-{
- isolated = 1 << 0, /* nominal */
- final = 1 << 1, /* right_joining */
- initial = 1 << 2, /* left_joining */
- medial = 1 << 3, /* double_joining */
- medial2 = 1 << 4, /* double_joining, applies to Alaph only */
- final2 = 1 << 5, /* right_joining, applies to Alaph only */
- final3 = 1 << 6 /* right_joining, applies to Alaph only */
-} JoiningType;
-
-/* A glyph's property value as needed by e.g. TT_GSUB_Apply_String()
- specifies which features should *not* be applied */
-typedef enum
-{
- isolated_p = final | initial | medial | medial2 | final2 | final3,
- final_p = isolated | initial | medial | medial2 | final2 | final3,
- initial_p = isolated | final | medial | medial2 | final2 | final3,
- medial_p = isolated | final | initial | medial2 | final2 | final3,
- medial2_p = isolated | final | initial | medial | final2 | final3,
- final2_p = isolated | final | initial | medial | medial2 | final3,
- final3_p = isolated | final | initial | medial | medial2 | final2
-} SyriacGlyphForm;
-
-typedef enum
-{
- right,
- left, /* not used */
- dual,
- causing,
- none,
- transparent
-} JoiningClass;
-
-FT_Error syriac_assign_properties (gunichar *string,
- gulong *properties,
- int length);
-
-G_END_DECLS
-
-#endif /* __SYRIAC_OT_H__ */
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