# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1307937571 -10800
# Node ID 2f7849e505f30e02b31f8097176cde734b570fc5
# Parent  c086345d176bc2a2a202c1d46930aea7f4d4098d
Fix backbuffer functionality.

diff -r c086345d176b -r 2f7849e505f3 nnchat.c
--- a/nnchat.c	Sat Jun 11 10:03:44 2011 +0300
+++ b/nnchat.c	Mon Jun 13 06:59:31 2011 +0300
@@ -378,7 +378,7 @@
 
 void updateMainWin(BOOL force)
 {
-    int y, w, h, offs, o;
+    int y, w, h, offs;
     qringbuf_t *buf;
 
     if (mainWin == NULL || currWin == NULL) return;
@@ -388,19 +388,17 @@
     getmaxyx(mainWin, h, w);
     werase(mainWin);
     
-    offs = (int) buf->size;
-    offs -= (h + currWin->pos);
+    h -= 1;
+    offs = ((int) buf->size) - h - currWin->pos;
     if (offs < 0)
         offs = 0;
-    o = offs;
 
     for (y = 0; y < h && offs < buf->size; offs++) {
-        if (buf->data[offs] != NULL)
+        if (buf->data[offs] != NULL) {
             printWin(mainWin, (char *) buf->data[offs]);
+        }
         y = getcury(mainWin);
     }
-
-//fprintf(stderr, "pos=%d, offs=%d / %d, buf.size=%d, h=%d, y=%d\n", currWin->pos, o, offs, buf->size, h, y);
     
     currWin->dirty = FALSE;
     wrefresh(mainWin);
@@ -999,8 +997,6 @@
     if (mainWin == NULL || statusWin == NULL || editWin == NULL)
         return FALSE;
 
-    scrollok(mainWin, 1);
-        
     return TRUE;
 }
 
@@ -1705,23 +1701,22 @@
 
             case KEY_NPAGE:
             case KEY_PPAGE:
+                /* Page Up / Page Down */
                 if (currWin != NULL)
                 {
-                int numLines, numCols, oldPos = currWin->pos;
-                getmaxyx(mainWin, numLines, numCols);
-                numLines = (numLines / 2) + 1;
+                int oldPos = currWin->pos;
 
-                if (c == KEY_PPAGE) {
+                if (c == KEY_NPAGE) {
                     if (currWin->pos > 10)
                         currWin->pos -= 10;
                     else
                         currWin->pos = 0;
                 }
                 else {
-                    if (currWin->pos < currWin->data->size - 10)
+                    if (currWin->pos < currWin->data->n - 10)
                         currWin->pos += 10;
                     else
-                        currWin->pos = currWin->data->size - 10;
+                        currWin->pos = currWin->data->n - 10;
                 }
 
                 if (oldPos != currWin->pos)