From 2f027ed1adb1316aeeb23ef7bb51f850b7cdd630 Mon Sep 17 00:00:00 2001
From: Moritz Lipp <mlq@pwmt.org>
Date: Sun, 4 Jul 2010 10:25:11 +0200
Subject: [PATCH] Define number of completion items

---
 config.def.h | 18 ++++++++++--------
 zathura.c    | 16 ++++++++++++++++
 2 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/config.def.h b/config.def.h
index 5b5a326..c41a376 100644
--- a/config.def.h
+++ b/config.def.h
@@ -1,12 +1,13 @@
 /* settings */
-int   default_width    = 800;
-int   default_height   = 600;
-float zoom_step        = 10;
-float zoom_min         = 10;
-float zoom_max         = 400;
-float scroll_step      = 40;
-float transparency     = 0.4;
-float smooth_scrolling = 0.0;
+int   default_width      = 800;
+int   default_height     = 600;
+float zoom_step          = 10;
+float zoom_min           = 10;
+float zoom_max           = 400;
+float scroll_step        = 40;
+float transparency       = 0.4;
+float smooth_scrolling   = 0.0;
+int   n_completion_items = 15;
 
 /* completion */
 static const char FORMAT_COMMAND[]     = "<b>%s</b>";
@@ -206,6 +207,7 @@ Setting settings[] = {
   {"inputbar_fgcolor",       &(inputbar_fgcolor),                's',   FALSE,   TRUE,    "Inputbar foreground color"},
   {"labels",                 &(Zathura.Global.enable_labelmode), 'b',   FALSE,   TRUE,    "Allow label mode"},
   {"list_printer_command",   &(list_printer_command),            's',   FALSE,   FALSE,   "Command to list printers"},
+  {"n_completion_items",     &(n_completion_items),              'i',   FALSE,   FALSE,   "Number of completion items"},
   {"notification_e_bgcolor", &(notification_e_bgcolor),          's',   FALSE,   TRUE,    "Notification (error) background color"},
   {"notification_e_fgcolor", &(notification_e_fgcolor),          's',   FALSE,   TRUE,    "Notification (error) foreground color"},
   {"notification_w_bgcolor", &(notification_w_bgcolor),          's',   FALSE,   TRUE,    "Notification (warning) background color"},
diff --git a/zathura.c b/zathura.c
index baf0a81..fd3e241 100644
--- a/zathura.c
+++ b/zathura.c
@@ -8,6 +8,7 @@
 #include <string.h>
 #include <unistd.h>
 #include <libgen.h>
+#include <math.h>
 
 #include <poppler/glib/poppler.h>
 #include <cairo.h>
@@ -2478,6 +2479,21 @@ isc_completion(Argument* argument)
 
     setCompletionRowColor(results, HIGHLIGHT, current_item);
 
+    /* hide other items */
+    int uh = ceil(n_completion_items / 2);
+    int lh = floor(n_completion_items / 2);
+
+    for(i = 0; i < n_items; i++)
+    {
+     if((i >= (current_item - lh) && (i <= current_item + uh)) ||
+        (i < n_completion_items && current_item < lh) ||
+        (i >= (n_items - n_completion_items) && (current_item >= (n_items - uh)))
+       )
+        gtk_widget_show(rows[i].row);
+      else
+        gtk_widget_hide(rows[i].row);
+    }
+
     if(command_mode)
       temp = g_strconcat(":", rows[current_item].command, NULL);
     else