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-rw-r--r--pango/pango-bidi-type.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/pango/pango-bidi-type.h b/pango/pango-bidi-type.h
index a86dd587..c53b1704 100644
--- a/pango/pango-bidi-type.h
+++ b/pango/pango-bidi-type.h
@@ -83,6 +83,53 @@ typedef enum {
PangoBidiType pango_bidi_type_for_unichar (gunichar ch) G_GNUC_CONST;
+/**
+ * PangoDirection:
+ * @PANGO_DIRECTION_LTR: A strong left-to-right direction
+ * @PANGO_DIRECTION_RTL: A strong right-to-left direction
+ * @PANGO_DIRECTION_TTB_LTR: Deprecated value; treated the
+ * same as %PANGO_DIRECTION_RTL.
+ * @PANGO_DIRECTION_TTB_RTL: Deprecated value; treated the
+ * same as %PANGO_DIRECTION_LTR
+ * @PANGO_DIRECTION_WEAK_LTR: A weak left-to-right direction
+ * @PANGO_DIRECTION_WEAK_RTL: A weak right-to-left direction
+ * @PANGO_DIRECTION_NEUTRAL: No direction specified
+ *
+ * The #PangoDirection type represents a direction in the
+ * Unicode bidirectional algorithm; not every value in this
+ * enumeration makes sense for every usage of #PangoDirection;
+ * for example, the return value of pango_unichar_direction()
+ * and pango_find_base_dir() cannot be %PANGO_DIRECTION_WEAK_LTR
+ * or %PANGO_DIRECTION_WEAK_RTL, since every character is either
+ * neutral or has a strong direction; on the other hand
+ * %PANGO_DIRECTION_NEUTRAL doesn't make sense to pass
+ * to pango_itemize_with_base_dir().
+ *
+ * The %PANGO_DIRECTION_TTB_LTR, %PANGO_DIRECTION_TTB_RTL
+ * values come from an earlier interpretation of this
+ * enumeration as the writing direction of a block of
+ * text and are no longer used; See #PangoGravity for how
+ * vertical text is handled in Pango.
+ **/
+typedef enum {
+ PANGO_DIRECTION_LTR,
+ PANGO_DIRECTION_RTL,
+ PANGO_DIRECTION_TTB_LTR,
+ PANGO_DIRECTION_TTB_RTL,
+ PANGO_DIRECTION_WEAK_LTR,
+ PANGO_DIRECTION_WEAK_RTL,
+ PANGO_DIRECTION_NEUTRAL
+} PangoDirection;
+
+PangoDirection pango_unichar_direction (gunichar ch) G_GNUC_CONST;
+PangoDirection pango_find_base_dir (const gchar *text,
+ gint length);
+
+#ifndef PANGO_DISABLE_DEPRECATED
+gboolean pango_get_mirror_char (gunichar ch,
+ gunichar *mirrored_ch);
+#endif
+
G_END_DECLS
#endif /* __PANGO_BIDI_TYPE_H__ */