From 9c90a31d3579a92a9e3fa37b19ef58676a1aff08 Mon Sep 17 00:00:00 2001
From: Sebastien Helleu <flashcode@flashtux.org>
Date: Sat, 7 Jun 2008 10:08:53 +0200
Subject: [PATCH] Fix display bug with prefix when filters are enable: do not
 count prefix length if line is not displayed

---
 src/gui/gui-chat.c   | 9 ++++++---
 src/gui/gui-filter.c | 8 ++++++++
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/gui/gui-chat.c b/src/gui/gui-chat.c
index 57173f1e8..3becf4af1 100644
--- a/src/gui/gui-chat.c
+++ b/src/gui/gui-chat.c
@@ -705,8 +705,6 @@ gui_chat_line_add (struct t_gui_buffer *buffer, time_t date,
         strdup (prefix) : ((date != 0) ? strdup ("") : NULL);
     new_line->prefix_length = (prefix) ?
         gui_chat_strlen_screen (prefix) : 0;
-    if (new_line->prefix_length > buffer->prefix_max_length)
-        buffer->prefix_max_length = new_line->prefix_length;
     new_line->message = (message) ? strdup (message) : strdup ("");
     new_line->highlight = gui_chat_line_has_highlight (buffer, new_line);
     if (new_line->highlight)
@@ -724,7 +722,12 @@ gui_chat_line_add (struct t_gui_buffer *buffer, time_t date,
     
     /* check if line is filtered or not */
     new_line->displayed = gui_filter_check_line (buffer, new_line);
-    if (!new_line->displayed)
+    if (new_line->displayed)
+    {
+        if (new_line->prefix_length > buffer->prefix_max_length)
+            buffer->prefix_max_length = new_line->prefix_length;
+    }
+    else
     {
         if (!buffer->lines_hidden)
         {
diff --git a/src/gui/gui-filter.c b/src/gui/gui-filter.c
index 6c2047bf3..53070f068 100644
--- a/src/gui/gui-filter.c
+++ b/src/gui/gui-filter.c
@@ -99,11 +99,19 @@ gui_filter_buffer (struct t_gui_buffer *buffer)
     
     lines_hidden = 0;
     
+    buffer->prefix_max_length = 0;
+    
     for (ptr_line = buffer->lines; ptr_line;
          ptr_line = ptr_line->next_line)
     {
         line_displayed = gui_filter_check_line (buffer, ptr_line);
         
+        if (line_displayed
+            && (ptr_line->prefix_length > buffer->prefix_max_length))
+        {
+            buffer->prefix_max_length = ptr_line->prefix_length;
+        }
+        
         /* force chat refresh if at least one line changed */
         if (ptr_line->displayed != line_displayed)
             gui_buffer_ask_chat_refresh (buffer, 2);