From ddbfffb2173630b16b5ddafaa6449cad8709bf83 Mon Sep 17 00:00:00 2001
From: Teruaki Kawashima <teru@rockbox.org>
Date: Mon, 12 Jul 2010 14:59:16 +0000
Subject: improve displaying of string containing diacritic characters. add
 some characters to determine the position to break line.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27401 a1c6a512-1295-4272-9138-f99709370657
---
 apps/plugins/lib/simple_viewer.c | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

(limited to 'apps/plugins/lib')

diff --git a/apps/plugins/lib/simple_viewer.c b/apps/plugins/lib/simple_viewer.c
index 13fdc32c2f..09144b645b 100644
--- a/apps/plugins/lib/simple_viewer.c
+++ b/apps/plugins/lib/simple_viewer.c
@@ -39,6 +39,22 @@ struct view_info {
     int start;          /* possition of first line in text  */
 };
 
+static bool isbrchr(const unsigned char *str, int len)
+{
+    const unsigned char *p = "!,-.:;?　、。！，．：；？―";
+    if (isspace(*str))
+        return true;
+
+    while(*p)
+    {
+        int n = rb->utf8seek(p, 1);
+        if (len == n && !rb->strncmp(p, str, len))
+            return true;
+        p += n;
+    }
+    return false;
+}
+
 static const char* get_next_line(const char *text, struct view_info *info)
 {
     const char *ptr = text;
@@ -53,10 +69,13 @@ static const char* get_next_line(const char *text, struct view_info *info)
 #else
         unsigned short ch;
         n = ((long)rb->utf8decode(ptr, &ch) - (long)ptr);
-        w = rb->font_get_width(info->pf, ch);
+        if (rb->is_diacritic(ch, NULL))
+            w = 0;
+        else
+            w = rb->font_get_width(info->pf, ch);
 #endif
-        if (isspace(*ptr))
-            space = ptr+n;
+        if (isbrchr(ptr, n))
+            space = ptr+(isspace(*ptr) || total + w <= info->vp.width? n: 0);
         if (*ptr == '\n')
         {
             ptr += n;
-- 
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