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-rw-r--r--pango/pangowin32-shape.c775
1 files changed, 0 insertions, 775 deletions
diff --git a/pango/pangowin32-shape.c b/pango/pangowin32-shape.c
deleted file mode 100644
index aad0243e..00000000
--- a/pango/pangowin32-shape.c
+++ /dev/null
@@ -1,775 +0,0 @@
-/* Pango
- * pangowin32-shape.c:
- *
- * Copyright (C) 1999 Red Hat Software
- * Copyright (C) 2001 Alexander Larsson
- *
- * 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"
-
-/*#define BASIC_WIN32_DEBUGGING */
-
-#include <math.h>
-#include <stdlib.h>
-
-#include <glib.h>
-
-#include "pangowin32-private.h"
-
-#include "pango-utils.h"
-#include "pango-impl-utils.h"
-
-static gboolean pango_win32_debug = FALSE;
-
-#include <usp10.h>
-
-static PangoGlyph
-find_char (PangoFont *font,
- gunichar wc)
-{
- return pango_win32_font_get_glyph_index (font, wc);
-}
-
-static void
-set_glyph (PangoFont *font,
- PangoGlyphString *glyphs,
- int i,
- int offset,
- PangoGlyph glyph)
-{
- PangoRectangle logical_rect;
-
- glyphs->glyphs[i].glyph = glyph;
-
- glyphs->glyphs[i].geometry.x_offset = 0;
- glyphs->glyphs[i].geometry.y_offset = 0;
-
- glyphs->log_clusters[i] = offset;
-
- pango_font_get_glyph_extents (font, glyphs->glyphs[i].glyph, NULL, &logical_rect);
- glyphs->glyphs[i].geometry.width = logical_rect.width;
-}
-
-static void
-swap_range (PangoGlyphString *glyphs,
- int start,
- int end)
-{
- int i, j;
-
- for (i = start, j = end - 1; i < j; i++, j--)
- {
- PangoGlyphInfo glyph_info;
- gint log_cluster;
-
- glyph_info = glyphs->glyphs[i];
- glyphs->glyphs[i] = glyphs->glyphs[j];
- glyphs->glyphs[j] = glyph_info;
-
- log_cluster = glyphs->log_clusters[i];
- glyphs->log_clusters[i] = glyphs->log_clusters[j];
- glyphs->log_clusters[j] = log_cluster;
- }
-}
-
-#ifdef BASIC_WIN32_DEBUGGING
-
-static char *
-lang_name (int lang)
-{
- LCID lcid = MAKELCID (lang, SORT_DEFAULT);
- static char retval[10];
-
- if (!GetLocaleInfo (lcid, LOCALE_SISO639LANGNAME, retval, G_N_ELEMENTS (retval)))
- sprintf (retval, "%#02x", lang);
-
- return retval;
-}
-
-#endif /* BASIC_WIN32_DEBUGGING */
-
-static WORD
-make_langid (PangoLanguage *lang)
-{
-#define CASE(t,p,s) if (pango_language_matches (lang, t)) return MAKELANGID (LANG_##p, SUBLANG_##p##_##s)
-#define CASEN(t,p) if (pango_language_matches (lang, t)) return MAKELANGID (LANG_##p, SUBLANG_NEUTRAL)
-
- /* Languages that most probably don't affect Uniscribe have been
- * left out. Uniscribe is documented to use
- * SCRIPT_CONTROL::uDefaultLanguage only to select digit shapes, so
- * just leave languages with own digits.
- */
-
- CASEN ("ar", ARABIC);
- CASEN ("hy", ARMENIAN);
- CASEN ("as", ASSAMESE);
- CASEN ("az", AZERI);
- CASEN ("bn", BENGALI);
- CASE ("zh-tw", CHINESE, TRADITIONAL);
- CASE ("zh-cn", CHINESE, SIMPLIFIED);
- CASE ("zh-hk", CHINESE, HONGKONG);
- CASE ("zh-sg", CHINESE, SINGAPORE);
- CASE ("zh-mo", CHINESE, MACAU);
- CASEN ("dib", DIVEHI);
- CASEN ("fa", FARSI);
- CASEN ("ka", GEORGIAN);
- CASEN ("gu", GUJARATI);
- CASEN ("he", HEBREW);
- CASEN ("hi", HINDI);
- CASEN ("ja", JAPANESE);
- CASEN ("kn", KANNADA);
- CASE ("ks-in", KASHMIRI, INDIA);
- CASEN ("ks", KASHMIRI);
- CASEN ("kk", KAZAK);
- CASEN ("kok", KONKANI);
- CASEN ("ko", KOREAN);
- CASEN ("ky", KYRGYZ);
- CASEN ("ml", MALAYALAM);
- CASEN ("mni", MANIPURI);
- CASEN ("mr", MARATHI);
- CASEN ("mn", MONGOLIAN);
- CASE ("ne-in", NEPALI, INDIA);
- CASEN ("ne", NEPALI);
- CASEN ("or", ORIYA);
- CASEN ("pa", PUNJABI);
- CASEN ("sa", SANSKRIT);
- CASEN ("sd", SINDHI);
- CASEN ("syr", SYRIAC);
- CASEN ("ta", TAMIL);
- CASEN ("tt", TATAR);
- CASEN ("te", TELUGU);
- CASEN ("th", THAI);
- CASE ("ur-pk", URDU, PAKISTAN);
- CASE ("ur-in", URDU, INDIA);
- CASEN ("ur", URDU);
- CASEN ("uz", UZBEK);
-
-#undef CASE
-#undef CASEN
-
- return MAKELANGID (LANG_NEUTRAL, SUBLANG_NEUTRAL);
-}
-
-#ifdef BASIC_WIN32_DEBUGGING
-
-static void
-dump_glyphs_and_log_clusters (gboolean rtl,
- int itemlen,
- int charix0,
- WORD *log_clusters,
- WORD *iglyphs,
- int nglyphs)
-{
- if (pango_win32_debug)
- {
- int j, k, nclusters, clusterix, charix, ng;
-
- g_print (" ScriptShape: nglyphs=%d: ", nglyphs);
-
- for (j = 0; j < nglyphs; j++)
- g_print ("%d%s", iglyphs[j], (j < nglyphs-1) ? "," : "");
- g_print ("\n");
-
- g_print (" log_clusters: ");
- for (j = 0; j < itemlen; j++)
- g_print ("%d ", log_clusters[j]);
- g_print ("\n");
- nclusters = 0;
- for (j = 0; j < itemlen; j++)
- {
- if (j == 0 || log_clusters[j-1] != log_clusters[j])
- nclusters++;
- }
- g_print (" %d clusters:\n", nclusters);
-
- /* If RTL, first char is the last in the run, otherwise the
- * first.
- */
- clusterix = 0;
- if (rtl)
- {
- int firstglyphix = 0;
- for (j = itemlen - 1, charix = charix0 + j; j >= 0; j--, charix--)
- {
- if (j == itemlen - 1 || log_clusters[j] != log_clusters[j+1])
- g_print (" Cluster %d: chars %d--",
- clusterix, charix);
- if (j == 0 || log_clusters[j-1] != log_clusters[j])
- {
- ng = log_clusters[j] - firstglyphix + 1;
- g_print ("%d: %d glyphs: ",
- charix, ng);
- for (k = firstglyphix; k <= log_clusters[j]; k++)
- {
- g_print ("%d", iglyphs[k]);
- if (k < log_clusters[j])
- g_print (",");
- }
- firstglyphix = log_clusters[j] + 1;
- clusterix++;
- g_print ("\n");
- }
- }
- }
- else
- {
- for (j = 0, charix = charix0; j < itemlen; j++, charix++)
- {
- if (j == 0 || log_clusters[j-1] != log_clusters[j])
- g_print (" Cluster %d: wchar_t %d--",
- clusterix, charix);
- if (j == itemlen - 1 || log_clusters[j] != log_clusters[j+1])
- {
- int klim = ((j == itemlen-1) ? nglyphs : log_clusters[j+1]);
- ng = klim - log_clusters[j];
- g_print ("%d: %d glyphs: ",
- charix, ng);
- for (k = log_clusters[j]; k < klim; k++)
- {
- g_print ("%d", iglyphs[k]);
- if (k != klim - 1)
- g_print (",");
- }
- clusterix++;
- g_print ("\n");
- }
- }
- }
- }
-}
-
-#endif /* BASIC_WIN32_DEBUGGING */
-
-static void
-set_up_pango_log_clusters (wchar_t *wtext,
- gboolean rtl,
- int itemlen,
- WORD *usp_log_clusters,
- int nglyphs,
- gint *pango_log_clusters,
- int char_offset)
-{
- int j, k;
- int first_char_in_cluster;
-
- if (rtl)
- {
- /* RTL. Walk Uniscribe log_clusters array backwards, build Pango
- * log_clusters array forwards.
- */
- int glyph0 = 0;
- first_char_in_cluster = itemlen - 1;
- for (j = itemlen - 1; j >= 0; j--)
- {
- if (j < itemlen - 1 && usp_log_clusters[j+1] != usp_log_clusters[j])
- {
- /* Cluster starts */
- first_char_in_cluster = j;
- }
- if (j == 0)
- {
- /* First char, cluster ends */
- for (k = glyph0; k < nglyphs; k++)
- pango_log_clusters[k] = first_char_in_cluster + char_offset;
- }
- else if (usp_log_clusters[j-1] == usp_log_clusters[j])
- {
- /* Cluster continues */
- first_char_in_cluster = j-1;
- }
- else
- {
- /* Cluster ends */
- for (k = glyph0; k <= usp_log_clusters[j]; k++)
- pango_log_clusters[k] = first_char_in_cluster + char_offset;
- glyph0 = usp_log_clusters[j] + 1;
- }
- }
- }
- else
- {
- /* LTR. Walk Uniscribe log_clusters array forwards, build Pango
- * log_clusters array also forwards.
- */
- first_char_in_cluster = 0;
- for (j = 0; j < itemlen; j++)
- {
- if (j > 0 && usp_log_clusters[j-1] != usp_log_clusters[j])
- {
- /* Cluster starts */
- first_char_in_cluster = j;
- }
- if (j == itemlen - 1)
- {
- /* Last char, cluster ends */
- for (k = usp_log_clusters[j]; k < nglyphs; k++)
- pango_log_clusters[k] = first_char_in_cluster + char_offset;
- }
- else if (usp_log_clusters[j] == usp_log_clusters[j+1])
- {
- /* Cluster continues */
- }
- else
- {
- /* Cluster ends */
- for (k = usp_log_clusters[j]; k < usp_log_clusters[j+1]; k++)
- pango_log_clusters[k] = first_char_in_cluster + char_offset;
- }
- }
- }
-}
-
-static void
-convert_log_clusters_to_byte_offsets (const char *text,
- gint length,
- PangoGlyphString *glyphs,
- gint utf16_len)
-{
- const char *p;
- int charix, glyphix;
- int *byte_offset = g_new (int, utf16_len);
-
- p = text;
- charix = 0;
- while (p < text + length)
- {
- byte_offset[charix] = p - text;
- charix++;
- if (g_utf8_get_char (p) > 0xFFFF)
- {
- byte_offset[charix] = p - text;
- charix++;
- }
- p = g_utf8_next_char (p);
- }
- g_assert (charix <= utf16_len);
-
- /* Convert utf16 indexes in the log_clusters array to byte offsets.
- */
- for (glyphix = 0; glyphix < glyphs->num_glyphs; glyphix++)
- {
- g_assert (glyphs->log_clusters[glyphix] < utf16_len);
- glyphs->log_clusters[glyphix] = byte_offset[glyphs->log_clusters[glyphix]];
- }
-
- g_free (byte_offset);
-}
-
-typedef struct {
- HFONT hfont;
- gint32 script;
-} script_cache_key;
-
-static guint
-script_cache_key_hash_func (script_cache_key *key)
-{
- return g_direct_hash (key->hfont) ^ g_int_hash (&(key->script));
-}
-
-static gboolean
-script_cache_key_equal_func (script_cache_key *a,
- script_cache_key *b)
-{
- return (a->hfont == b->hfont) && (a->script == b->script);
-}
-
-static gboolean
-itemize_shape_and_place (PangoFont *font,
- HDC hdc,
- wchar_t *wtext,
- int wlen,
- const PangoAnalysis *analysis,
- PangoGlyphString *glyphs)
-{
- int i;
- int item, nitems, item_step;
- int itemlen, glyphix, nglyphs;
- SCRIPT_CONTROL control;
- SCRIPT_STATE state;
- SCRIPT_ITEM items[100];
- double scale = pango_win32_font_get_metrics_factor (font);
- HFONT hfont = _pango_win32_font_get_hfont (font);
- static GHashTable *script_cache_hash = NULL;
-
- if (!script_cache_hash)
- script_cache_hash = g_hash_table_new ((GHashFunc)script_cache_key_hash_func,
- (GEqualFunc)script_cache_key_equal_func);
-
- memset (&control, 0, sizeof (control));
- memset (&state, 0, sizeof (state));
-
- control.uDefaultLanguage = make_langid (analysis->language);
- state.uBidiLevel = analysis->level;
-
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- g_print (G_STRLOC ": ScriptItemize: uDefaultLanguage:%04x uBidiLevel:%d\n",
- control.uDefaultLanguage, state.uBidiLevel);
-#endif
- if (ScriptItemize (wtext, wlen, G_N_ELEMENTS (items), &control, NULL,
- items, &nitems))
- {
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- g_print ("ScriptItemize failed\n");
-#endif
- return FALSE;
- }
-
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- g_print ("%d items:\n", nitems);
-#endif
-
- if (analysis->level % 2)
- {
- item = nitems - 1;
- item_step = -1;
- }
- else
- {
- item = 0;
- item_step = 1;
- }
-
- for (i = 0; i < nitems; i++, item += item_step)
- {
- WORD iglyphs[1000];
- WORD log_clusters[1000];
- SCRIPT_VISATTR visattrs[1000];
- int advances[1000];
- GOFFSET offsets[1000];
- ABC abc;
- gint32 script = items[item].a.eScript;
- int ng;
- int char_offset;
- SCRIPT_CACHE *script_cache;
- script_cache_key font_and_script_key;
-
- memset (advances, 0, sizeof (advances));
- memset (offsets, 0, sizeof (offsets));
- memset (&abc, 0, sizeof (abc));
-
- /* Note that itemlen is number of wchar_t's i.e. surrogate pairs
- * count as two!
- */
- itemlen = items[item+1].iCharPos - items[item].iCharPos;
- char_offset = items[item].iCharPos;
-
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- {
- static const SCRIPT_PROPERTIES **scripts;
- static int nscripts;
- if (!nscripts)
- ScriptGetProperties (&scripts, &nscripts);
- g_print (" Item %d: iCharPos=%d eScript=%d (%s) %s%s%s%s%s%s%s wchar_t %d--%d (%d)\n",
- item, items[item].iCharPos, script,
- lang_name (scripts[script]->langid),
- scripts[script]->fComplex ? "complex" : "simple",
- items[item].a.fRTL ? " fRTL" : "",
- items[item].a.fLayoutRTL ? " fLayoutRTL" : "",
- items[item].a.fLinkBefore ? " fLinkBefore" : "",
- items[item].a.fLinkAfter ? " fLinkAfter" : "",
- items[item].a.fLogicalOrder ? " fLogicalOrder" : "",
- items[item].a.fNoGlyphIndex ? " fNoGlyphIndex" : "",
- items[item].iCharPos, items[item+1].iCharPos-1, itemlen);
-#endif
- /* Create a hash key based on hfont and script engine */
- font_and_script_key.hfont = hfont;
- font_and_script_key.script = script;
-
- /* Get the script cache for this hfont and script */
- script_cache = g_hash_table_lookup (script_cache_hash, &font_and_script_key);
- if (!script_cache)
- {
- script_cache_key *key_n;
- SCRIPT_CACHE *new_script_cache;
-
- key_n = g_new (script_cache_key, 1);
- *key_n = font_and_script_key;
-
- new_script_cache = g_new0 (SCRIPT_CACHE, 1);
- script_cache = new_script_cache;
-
- /* Insert the new value */
- g_hash_table_insert (script_cache_hash, key_n, new_script_cache);
-
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- g_print (" New SCRIPT_CACHE for font %p and script %d\n", hfont, script);
-#endif
- }
-
- items[item].a.fRTL = analysis->level % 2;
- if (ScriptShape (hdc, script_cache,
- wtext + items[item].iCharPos, itemlen,
- G_N_ELEMENTS (iglyphs),
- &items[item].a,
- iglyphs,
- log_clusters,
- visattrs,
- &nglyphs))
- {
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- g_print ("pangowin32-shape: ScriptShape failed\n");
-#endif
- return FALSE;
- }
-
-#ifdef BASIC_WIN32_DEBUGGING
- dump_glyphs_and_log_clusters (items[item].a.fRTL, itemlen,
- items[item].iCharPos, log_clusters,
- iglyphs, nglyphs);
-#endif
-
- ng = glyphs->num_glyphs;
- pango_glyph_string_set_size (glyphs, ng + nglyphs);
-
- set_up_pango_log_clusters (wtext + items[item].iCharPos,
- items[item].a.fRTL, itemlen, log_clusters,
- nglyphs, glyphs->log_clusters + ng,
- char_offset);
-
- if (ScriptPlace (hdc, script_cache, iglyphs, nglyphs,
- visattrs, &items[item].a,
- advances, offsets, &abc))
- {
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- g_print ("pangowin32-shape: ScriptPlace failed\n");
-#endif
- return FALSE;
- }
-
- for (glyphix = 0; glyphix < nglyphs; glyphix++)
- {
- if (iglyphs[glyphix] != 0)
- {
- glyphs->glyphs[ng+glyphix].glyph = iglyphs[glyphix];
- glyphs->glyphs[ng+glyphix].geometry.width = floor (0.5 + scale * advances[glyphix]);
- glyphs->glyphs[ng+glyphix].geometry.x_offset = floor (0.5 + scale * offsets[glyphix].du);
- glyphs->glyphs[ng+glyphix].geometry.y_offset = -floor (0.5 + scale * offsets[glyphix].dv);
- }
- else
- {
- PangoRectangle logical_rect;
- /* Should pass actual char that was not found to
- * PANGO_GET_UNKNOWN_GLYPH(), but a bit hard to
- * find out that at this point, so cheat and use 0.
- */
- PangoGlyph unk = PANGO_GET_UNKNOWN_GLYPH (0);
-
- glyphs->glyphs[ng+glyphix].glyph = unk;
- pango_font_get_glyph_extents (font, unk, NULL, &logical_rect);
- glyphs->glyphs[ng+glyphix].geometry.width = logical_rect.width;
- glyphs->glyphs[ng+glyphix].geometry.x_offset = 0;
- glyphs->glyphs[ng+glyphix].geometry.y_offset = 0;
- }
- }
- }
-
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- {
- g_print (" Pango log_clusters (level:%d), char index:", analysis->level);
- for (glyphix = 0; glyphix < glyphs->num_glyphs; glyphix++)
- g_print ("%d ", glyphs->log_clusters[glyphix]);
- g_print ("\n");
- }
-#endif
-
- return TRUE;
-}
-
-static gboolean
-uniscribe_shape (PangoFont *font,
- const char *text,
- gint length,
- const PangoAnalysis *analysis,
- PangoGlyphString *glyphs)
-{
- wchar_t *wtext;
- long wlen;
- HDC hdc = _pango_win32_hdc;
- gboolean retval = TRUE;
-
- if (!pango_win32_font_select_font (font, hdc))
- return FALSE;
-
- wtext = g_utf8_to_utf16 (text, length, NULL, &wlen, NULL);
- if (wtext == NULL)
- retval = FALSE;
-
- if (retval)
- {
- retval = itemize_shape_and_place (font, hdc, wtext, wlen, analysis, glyphs);
- }
-
- if (retval)
- {
- convert_log_clusters_to_byte_offsets (text, length, glyphs, wlen);
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- {
- int glyphix;
-
- g_print (" Pango log_clusters, byte offsets:");
- for (glyphix = 0; glyphix < glyphs->num_glyphs; glyphix++)
- g_print ("%d ", glyphs->log_clusters[glyphix]);
- g_print ("\n");
- }
-#endif
- }
-
- pango_win32_font_done_font (font);
-
- g_free (wtext);
-
- return retval && glyphs->num_glyphs > 0;
-}
-
-static gboolean
-text_is_simple (const char *text,
- gint length)
-{
- gboolean retval;
- wchar_t *wtext;
- long wlen;
-
- wtext = (wchar_t *) g_utf8_to_utf16 (text, length, NULL, &wlen, NULL);
- if (wtext == NULL)
- return TRUE;
-
- retval = (ScriptIsComplex (wtext, wlen, SIC_COMPLEX) == S_FALSE);
-
- g_free (wtext);
-
-#ifdef BASIC_WIN32_DEBUGGING
- if (pango_win32_debug)
- g_print ("text_is_simple: %.*s (%ld wchar_t): %s\n",
- MIN (length, 10), text, wlen, retval ? "YES" : "NO");
-#endif
-
- return retval;
-}
-
-void
-_pango_win32_shape (PangoFont *font,
- const char *text,
- unsigned int length,
- const PangoAnalysis *analysis,
- PangoGlyphString *glyphs,
- const char *paragraph_text G_GNUC_UNUSED,
- unsigned int paragraph_length G_GNUC_UNUSED)
-{
- int n_chars;
- int i;
- const char *p;
-
- g_return_if_fail (font != NULL);
- g_return_if_fail (text != NULL);
- g_return_if_fail (length >= 0);
- g_return_if_fail (analysis != NULL);
-
- if (!text_is_simple (text, length) &&
- uniscribe_shape (font, text, length, analysis, glyphs))
- return;
-
- n_chars = pango_utf8_strlen (text, length);
-
- pango_glyph_string_set_size (glyphs, n_chars);
-
- p = text;
- for (i = 0; i < n_chars; i++)
- {
- gunichar wc;
- gunichar mirrored_ch;
- PangoGlyph index;
-
- wc = g_utf8_get_char (p);
-
- if (analysis->level % 2)
- if (g_unichar_get_mirror_char (wc, &mirrored_ch))
- wc = mirrored_ch;
-
- if (wc == 0xa0) /* non-break-space */
- wc = 0x20;
-
- if (pango_is_zero_width (wc))
- {
- set_glyph (font, glyphs, i, p - text, PANGO_GLYPH_EMPTY);
- }
- else
- {
- index = find_char (font, wc);
- if (index)
- {
- set_glyph (font, glyphs, i, p - text, index);
-
- if (g_unichar_type (wc) == G_UNICODE_NON_SPACING_MARK)
- {
- if (i > 0)
- {
- PangoRectangle logical_rect, ink_rect;
-
- glyphs->glyphs[i].geometry.width = MAX (glyphs->glyphs[i-1].geometry.width,
- glyphs->glyphs[i].geometry.width);
- glyphs->glyphs[i-1].geometry.width = 0;
- glyphs->log_clusters[i] = glyphs->log_clusters[i-1];
-
- /* Some heuristics to try to guess how overstrike glyphs are
- * done and compensate
- */
- /* FIXME: (alex) Is this double call to get_glyph_extents really necessary? */
- pango_font_get_glyph_extents (font, glyphs->glyphs[i].glyph, &ink_rect, &logical_rect);
- if (logical_rect.width == 0 && ink_rect.x == 0)
- glyphs->glyphs[i].geometry.x_offset = (glyphs->glyphs[i].geometry.width - ink_rect.width) / 2;
- }
- }
- }
- else
- set_glyph (font, glyphs, i, p - text, PANGO_GET_UNKNOWN_GLYPH (wc));
- }
-
- p = g_utf8_next_char (p);
- }
-
- /* Simple bidi support... may have separate modules later */
-
- if (analysis->level % 2)
- {
- int start, end;
-
- /* Swap all glyphs */
- swap_range (glyphs, 0, n_chars);
-
- /* Now reorder glyphs within each cluster back to LTR */
- for (start = 0; start < n_chars;)
- {
- end = start;
- while (end < n_chars &&
- glyphs->log_clusters[end] == glyphs->log_clusters[start])
- end++;
-
- swap_range (glyphs, start, end);
- start = end;
- }
- }
-}
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