From 69511102de9b0f3ec6ad555baf2a01d9ee1c3dfd Mon Sep 17 00:00:00 2001
From: Magnus Auvinen <magnus.auvinen@gmail.com>
Date: Sat, 13 Jun 2009 08:22:37 +0000
Subject: improved the font system even futher. utf8 is now used everywhere. it
 uses less memory as well

---
 src/game/client/lineinput.cpp | 49 ++++++++++++++++++++++++++++++-------------
 1 file changed, 34 insertions(+), 15 deletions(-)

(limited to 'src/game/client/lineinput.cpp')

diff --git a/src/game/client/lineinput.cpp b/src/game/client/lineinput.cpp
index 40c47d41..f8c9d7e7 100644
--- a/src/game/client/lineinput.cpp
+++ b/src/game/client/lineinput.cpp
@@ -21,23 +21,30 @@ void LINEINPUT::set(const char *string)
 	cursor_pos = len;
 }
 
-void LINEINPUT::process_input(INPUT_EVENT e)
+void LINEINPUT::manipulate(INPUT_EVENT e, char *str, int str_max_size, int *str_len_ptr, int *cursor_pos_ptr)
 {
+	int cursor_pos = *cursor_pos_ptr;
+	int len = *str_len_ptr;
+	
 	if(cursor_pos > len)
 		cursor_pos = len;
 	
-	char c = e.ch;
+	int code = e.unicode;
 	int k = e.key;
 	
 	// 127 is produced on Mac OS X and corresponds to the delete key
-	if (!(c >= 0 && c < 32) && c != 127)
+	if (!(code >= 0 && code < 32) && code != 127)
 	{
-		if (len < sizeof(str) - 1 && cursor_pos < sizeof(str) - 1)
+		char tmp[8];
+		int charsize = str_utf8_encode(tmp, code);
+		
+		if (len < str_max_size - charsize && cursor_pos < str_max_size - charsize)
 		{
-			memmove(str + cursor_pos + 1, str + cursor_pos, len - cursor_pos + 1);
-			str[cursor_pos] = c;
-			cursor_pos++;
-			len++;
+			memmove(str + cursor_pos + charsize, str + cursor_pos, len - cursor_pos + charsize);
+			for(int i = 0; i < charsize; i++)
+				str[cursor_pos+i] = tmp[i];
+			cursor_pos += charsize;
+			len += charsize;
 		}
 	}
 	
@@ -45,22 +52,34 @@ void LINEINPUT::process_input(INPUT_EVENT e)
 	{
 		if (k == KEY_BACKSPACE && cursor_pos > 0)
 		{
-			memmove(str + cursor_pos - 1, str + cursor_pos, len - cursor_pos + 1);
-			cursor_pos--;
-			len--;
+			int new_cursor_pos = str_utf8_rewind(str, cursor_pos);
+			int charsize = cursor_pos-new_cursor_pos;
+			memmove(str+new_cursor_pos, str+cursor_pos, len - charsize + 1); // +1 == null term
+			cursor_pos = new_cursor_pos;
+			len -= charsize;
 		}
 		else if (k == KEY_DELETE && cursor_pos < len)
 		{
-			memmove(str + cursor_pos, str + cursor_pos + 1, len - cursor_pos);
-			len--;
+			int p = str_utf8_forward(str, cursor_pos);
+			int charsize = p-cursor_pos;
+			memmove(str + cursor_pos, str + cursor_pos + charsize, len - cursor_pos - charsize + 1); // +1 == null term
+			len -= charsize;
 		}
 		else if (k == KEY_LEFT && cursor_pos > 0)
-			cursor_pos--;
+			cursor_pos = str_utf8_rewind(str, cursor_pos);
 		else if (k == KEY_RIGHT && cursor_pos < len)
-			cursor_pos++;
+			cursor_pos = str_utf8_forward(str, cursor_pos);
 		else if (k == KEY_HOME)
 			cursor_pos = 0;
 		else if (k == KEY_END)
 			cursor_pos = len;
 	}
+	
+	*cursor_pos_ptr = cursor_pos;
+	*str_len_ptr = len;
+}
+
+void LINEINPUT::process_input(INPUT_EVENT e)
+{
+	manipulate(e, str, sizeof(str), &len, &cursor_pos);
 }
-- 
cgit 1.4.1