and add files!

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/evas@39973 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

diff --git a/src/lib/engines/common/evas_intl_utils.c b/src/lib/engines/common/evas_intl_utils.c
new file mode 100644 (file)
index 0000000..6ad1b45
--- /dev/null
+++ b/src/lib/engines/common/evas_intl_utils.c
@@ -0,0 +1,104 @@
+/* Authors:
+ *     Tom Hacohen (tom@stsob.com)
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "evas_intl_utils.h"
+
+#ifdef USE_FRIBIDI
+#include <fribidi/fribidi.h>
+
+#define UTF8_BYTES_PER_CHAR 4
+
+/* FIXME: fribidi_utf8_to_unicode should use char len and not byte len!*/
+char *
+evas_intl_utf8_to_visual(const char *text, int *ret_len, FriBidiCharType *direction,
+                       FriBidiLevel **embedding_level_list)
+{
+       FriBidiChar *unicode_in, *unicode_out;
+       char *text_out;
+       size_t len;
+       size_t byte_len;
+
+       if (!text)
+               return NULL;
+
+       len = evas_string_char_len_get(text);
+
+       /* if there's nothing to do, return text
+        * one char draws are quite common */
+       if (len <= 1)
+               return text;
+       
+       byte_len = strlen(text); /* we need the actual number of bytes, not number of chars */
+       
+       unicode_in=(FriBidiChar *)malloc(sizeof(FriBidiChar)*(len+1));
+       if (!unicode_in) {
+               len = -1;
+               goto error1;
+               
+       }
+               
+       len = fribidi_utf8_to_unicode(text, byte_len, unicode_in);
+       
+       unicode_out=(FriBidiChar *)malloc(sizeof(FriBidiChar)*(len+1));
+       if (!unicode_out) {
+               len = -2;
+               goto error2;
+               
+       }
+
+       *embedding_level_list=(FriBidiLevel *)malloc(sizeof(FriBidiLevel)*len);
+       if (!*embedding_level_list) {
+               len = -3;
+               goto error3;
+               
+       }
+
+#ifdef ARABIC_SUPPORT
+       /* fix arabic context */
+       evas_intl_arabic_to_context(unicode_in);
+#endif 
+       if (! fribidi_log2vis(unicode_in, len, direction,
+                       unicode_out, NULL, NULL, *embedding_level_list)) {
+               len = -4;
+               goto error3;
+                               
+       }
+
+       text_out = malloc(UTF8_BYTES_PER_CHAR * len + 1);
+       if (!text_out) {
+               len = -5;
+               goto error4;
+       }
+
+       fribidi_unicode_to_utf8(unicode_out, len, text_out);
+       
+       free(unicode_in);
+       free(unicode_out);
+
+       *ret_len = len;
+       return text_out;
+
+       /* ERROR HANDLING */
+error4:
+       free(unicode_out);
+error3:
+       free(*embedding_level_list);
+error2:
+       free(unicode_in);
+error1:
+
+       *ret_len = len; 
+       return NULL;
+}
+
+
+int
+evas_intl_is_rtl_char(FriBidiLevel *embedded_level_list, FriBidiStrIndex i)
+{
+       return fribidi_is_char_rtl(embedded_level_list, 0, i);
+}
+#endif

diff --git a/src/lib/engines/common/evas_intl_utils.h b/src/lib/engines/common/evas_intl_utils.h
new file mode 100644 (file)
index 0000000..35a8213
--- /dev/null
+++ b/src/lib/engines/common/evas_intl_utils.h
@@ -0,0 +1,29 @@
+#ifndef _EVAS_INTL_UTILS
+#define _EVAS_INTL_UTILS
+
+#include "config.h"
+
+#ifdef HAVE_FRIBIDI_FRIBIDI_H
+#define USE_FRIBIDI 1
+#define INTERNATIONAL_SUPPORT
+#endif
+
+#ifdef USE_FRIBIDI
+#include <fribidi/fribidi.h>
+
+/* whether should fix arabic specifix issues */
+#define ARABIC_SUPPORT 1
+
+#ifdef ARABIC_SUPPORT
+#include "evas_intl/evas_intl_arabic.h"
+#endif
+
+int
+evas_intl_is_rtl_char(FriBidiLevel *embedded_level_list, FriBidiStrIndex i);
+
+char *
+evas_intl_utf8_to_visual(const char *text, int *ret_len, FriBidiCharType *direction,
+                       FriBidiLevel **embedding_level_list);
+#endif
+
+#endif