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| author | Owen Taylor <otaylor@redhat.com> | 2004-02-27 14:48:54 +0000 |
|---|---|---|
| committer | Owen Taylor <otaylor@src.gnome.org> | 2004-02-27 14:48:54 +0000 |
| commit | 58a45b6a10cf9ca55b3216e233f6b516c75755de (patch) | |
| tree | e6820c29dec5b9b8051a378a47bf4629bbfcdd47 /pango/mini-fribidi | |
| parent | f27610770305444fcab90ce651f48265e41dfee2 (diff) | |
| download | pango-58a45b6a10cf9ca55b3216e233f6b516c75755de.tar.gz | |
Add some new enum and values and utilities for supporting automatically
Fri Feb 27 09:30:10 2004 Owen Taylor <otaylor@redhat.com>
Add some new enum and values and utilities for supporting
automatically determined base direction. (#70451, based
on changes by Dov Grobgeld)
* pango/pango-types.h docs/tmpl/main.sgml: Add
PANGO_DIRECTION_WEAK_RTL/LTR, extend the docs for
PangoDirection.
* pango/pango-types.h pango/pango-utils.h: Move
pango_get_mirror_char() to pango-types.h.
* pango/mini-fribidi/fribidi.c (pango_log2vis_get_embedding_levels):
Handle new values of PangoDirection, handle
PANGO_DIRECTION_TTB_LTR/RTL as aliases for PANGO_DIRECTION_RTL/LTR.
* pango/mini-fribidi/fribidi.c pango/pango-types.h: Add
pango_unichar_direction().
* pango/pango-utils.c pango/pango-types.h: Add
pango_find_base_dir()
Diffstat (limited to 'pango/mini-fribidi')
| -rw-r--r-- | pango/mini-fribidi/fribidi.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/pango/mini-fribidi/fribidi.c b/pango/mini-fribidi/fribidi.c index e298f404..2a850c46 100644 --- a/pango/mini-fribidi/fribidi.c +++ b/pango/mini-fribidi/fribidi.c @@ -1006,8 +1006,24 @@ pango_log2vis_get_embedding_levels (/* input */ DBG ("Entering fribidi_log2vis_get_embedding_levels()\n"); - fribidi_base_dir = (*pbase_dir == PANGO_DIRECTION_LTR) ? FRIBIDI_TYPE_LTR : FRIBIDI_TYPE_RTL; - + switch (*pbase_dir) + { + case PANGO_DIRECTION_LTR: + case PANGO_DIRECTION_TTB_RTL: + fribidi_base_dir = FRIBIDI_TYPE_L; + break; + case PANGO_DIRECTION_RTL: + case PANGO_DIRECTION_TTB_LTR: + fribidi_base_dir = FRIBIDI_TYPE_R; + break; + case PANGO_DIRECTION_WEAK_LTR: + fribidi_base_dir = FRIBIDI_TYPE_WL; + break; + case PANGO_DIRECTION_WEAK_RTL: + fribidi_base_dir = FRIBIDI_TYPE_WR; + break; + } + if (len == 0) { DBG ("Leaving fribidi_log2vis_get_embedding_levels()\n"); @@ -1033,3 +1049,22 @@ pango_log2vis_get_embedding_levels (/* input */ return TRUE; } +/** + * pango_unichar_direction: + * @ch: character to examine + * + * Returns the direction of a character, as used in the + * Unicode bidirectional algorithm. + */ +PangoDirection +pango_unichar_direction (gunichar ch) +{ + FriBidiCharType fribidi_ch_type = _pango_fribidi_get_type (ch); + + if (!FRIBIDI_IS_LETTER (fribidi_ch_type)) + return PANGO_DIRECTION_NEUTRAL; + else if (FRIBIDI_IS_RTL (fribidi_ch_type)) + return PANGO_DIRECTION_RTL; + else + return PANGO_DIRECTION_LTR; +} |