From 26640cda14a50cea47ada18f40e33e5dced543b5 Mon Sep 17 00:00:00 2001
From: Jfreegman <Jfreegman@gmail.com>
Date: Fri, 28 Mar 2014 17:33:23 -0400
Subject: [PATCH] prevent screen from moving on input when in scroll mode

---
 src/line_info.c | 16 ++++++++--------
 src/line_info.h |  4 ++--
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/line_info.c b/src/line_info.c
index 197a030..68f072f 100644
--- a/src/line_info.c
+++ b/src/line_info.c
@@ -143,7 +143,6 @@ void line_info_add(ToxWindow *self, uint8_t *tmstmp, uint8_t *name1, uint8_t *na
 
     /* If chat history exceeds limit move root forward and free old root */
     if (++hst->line_items > MAX_HISTORY) {
-        --hst->line_items;
         struct line_info *tmp = hst->line_root->next;
         tmp->prev = NULL;
 
@@ -181,9 +180,11 @@ void line_info_add(ToxWindow *self, uint8_t *tmstmp, uint8_t *name1, uint8_t *na
     /* move line_start forward proportionate to the number of new lines */
     if (y + hst->queue_lns - hst->queue >= max_y) {
         while (lines > 0 && hst->line_start->next) {
-            lines -= (1 + hst->line_start->len / (x2 - offst));
-            hst->line_start = hst->line_start->next;
             ++hst->start_id;
+            lines -= (1 + hst->line_start->len / (x2 - offst));
+
+            if (!hst->scroll_mode)
+                hst->line_start = hst->line_start->next;
         }
     }
 }
@@ -193,6 +194,9 @@ void line_info_print(ToxWindow *self)
     ChatContext *ctx = self->chatwin;
     WINDOW *win = ctx->history;
 
+    ctx->hst->queue = 0;
+    ctx->hst->queue_lns = 0;
+
     wclear(win);
     int y2, x2;
     getmaxyx(self->window, y2, x2);
@@ -200,9 +204,6 @@ void line_info_print(ToxWindow *self)
     if (x2 <= SIDEBAR_WIDTH)
         return;
 
-    ctx->hst->queue = 0;
-    ctx->hst->queue_lns = 0;
-
     if (self->is_groupchat)
         wmove(win, 0, 0);
     else
@@ -212,9 +213,8 @@ void line_info_print(ToxWindow *self)
     int offst = self->is_groupchat ? SIDEBAR_WIDTH : 0;
     int numlines = 0;
 
-    while(line && numlines <= y2) {
+    while(line && numlines++ <= y2) {
         uint8_t type = line->type;
-        numlines += line->len / (x2 - offst);
 
         switch (type) {
         case OUT_MSG:
diff --git a/src/line_info.h b/src/line_info.h
index 4801b86..f0821ed 100644
--- a/src/line_info.h
+++ b/src/line_info.h
@@ -77,9 +77,9 @@ void line_info_toggle_scroll(ToxWindow *self, bool scroll);
 /* clears the screen (does not delete anything) */
 void line_info_clear(struct history *hst);
 
-/* puts msg in specified line_info->msg buffer */
+/* puts msg in specified line_info msg buffer */
 void line_info_set(ToxWindow *self, uint32_t id, uint8_t *msg);
 
 void line_info_init(struct history *hst);
 void line_info_onKey(ToxWindow *self, wint_t key);
-void line_info_onDraw(ToxWindow *self);
\ No newline at end of file
+void line_info_onDraw(ToxWindow *self);