few fixes

src/global_commands.c

@@ -182,9 +182,7 @@ void cmd_add(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX
 
 void cmd_clear(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
 {
-    struct history *hst = self->chatwin->hst;
-    line_info_cleanup(hst);
-    line_info_init(hst);
+    line_info_clear(self->chatwin->hst);
 }
 
 void cmd_connect(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
@@ -270,7 +268,7 @@ void cmd_log(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX
         } else if (self->is_prompt) {
             uint8_t myid[TOX_FRIEND_ADDRESS_SIZE];
             tox_get_address(m, myid);
-            log_enable(self->name, &myid, log);
+            log_enable(self->name, myid, log);
         } else if (self->is_groupchat) {
             log_enable(self->name, NULL, log);
         }

src/line_info.c

@@ -30,6 +30,7 @@
 
 #include "toxic_windows.h"
 #include "line_info.h"
+#include "groupchat.h"
 
 void line_info_init(struct history *hst)
 {
@@ -156,19 +157,27 @@ void line_info_add(ToxWindow *self, uint8_t *tmstmp, uint8_t *name1, uint8_t *na
         hst->line_root = tmp;
     }
 
+    int newlines = 0;
+    int i;
+
+    for (i = 0; msg[i]; ++i) {
+        if (msg[i] == '\n')
+            ++newlines;
+    }
+
     int y, y2, x, x2;
     getmaxyx(self->window, y2, x2);
     getyx(self->chatwin->history, y, x);
 
-    int n = self->is_prompt ? 0 : CHATBOX_HEIGHT;
+    int offst = self->is_groupchat ? SIDEBAR_WIDTH : 0;   /* offset width of groupchat sidebar */
+    int lines = 1 + (len / (x2 - offst));
 
-    /* move line_start forward proportionate to the number of new rows */
-    if (y >= y2 - n) {
-        int i;
-        int lines = 1 + (len / x2);
+    int max_y = self->is_prompt ? y2 : y2 - CHATBOX_HEIGHT;
 
+    /* move line_start forward proportionate to the number of new lines */
+    if (y >= max_y) {
         while (lines > 0 && hst->line_start->next) {
-            lines -= (1 + hst->line_start->len / x2);
+            lines -= (1 + hst->line_start->len / (x2 - offst));
             hst->line_start = hst->line_start->next;
             ++hst->start_id;
         }
@@ -371,3 +380,8 @@ void line_info_onKey(ToxWindow *self, wint_t key)
         break;
     }
 }
+
+void line_info_clear(struct history *hst)
+{
+    hst->line_start = hst->line_end;
+}

src/line_info.h

@@ -55,12 +55,25 @@ struct history {
     uint32_t start_id;    /* keeps track of where line_start should be when at bottom of history */
     uint32_t line_items;
     bool scroll_mode;
+    int y;
+    int old_y;
 };
 
+/* adds a line to history (also moves line_start and/or line_root forward if necessary) */
 void line_info_add(ToxWindow *self, uint8_t *tmstmp, uint8_t *name1, uint8_t *name2, uint8_t *msg, 
                    uint8_t type, uint8_t bold, uint8_t colour);
-void line_info_cleanup(struct history *hst);
-void line_info_toggle_scroll(ToxWindow *self, bool scroll);
-void line_info_init(struct history *hst);
+
+/* Prints a section of history starting at line_start */
 void line_info_print(ToxWindow *self);
+
+/* frees all history lines */
+void line_info_cleanup(struct history *hst);
+
+/* Toggles scroll mode for current window */
+void line_info_toggle_scroll(ToxWindow *self, bool scroll);
+
+/* clears the screen (does not delete anything) */
+void line_info_clear(struct history *hst);
+
+void line_info_init(struct history *hst);
 void line_info_onKey(ToxWindow *self, wint_t key);

src/prompt.c

@@ -144,7 +144,6 @@ static void prompt_onKey(ToxWindow *self, Tox *m, wint_t key)
         if (ctx->pos > 0) {
             del_char_buf_bck(ctx->line, &ctx->pos, &ctx->len);
             wmove(ctx->history, y, x-1);    /* not necessary but fixes a display glitch */
-            ctx->scroll = false;
         } else {
             beep();
         }
@@ -153,7 +152,6 @@ static void prompt_onKey(ToxWindow *self, Tox *m, wint_t key)
     else if (key == KEY_DC) {      /* DEL key: Remove character at pos */
         if (ctx->pos != ctx->len) {
             del_char_buf_frnt(ctx->line, &ctx->pos, &ctx->len);
-            ctx->scroll = false;
         } else {
             beep();
         }
@@ -246,7 +244,6 @@ static void prompt_onKey(ToxWindow *self, Tox *m, wint_t key)
     {
         if (ctx->len < (MAX_STR_SIZE-1)) {
             add_char_to_buf(ctx->line, &ctx->pos, &ctx->len, key);
-            ctx->scroll = true;
         }
     }
     /* RETURN key: execute command */
@@ -303,10 +300,8 @@ static void prompt_onDraw(ToxWindow *self, Tox *m)
         bool edge = (ctx->len + p_ofst) % px2 == 0;
 
         /* move point of line origin up when input scrolls screen down */
-        if (ctx->scroll && edge && botm) {
+        if (edge && botm)
             --ctx->orig_y;
-            ctx->scroll = false;
-        }
 
     } else {    /* Mark point of origin for new line */
         ctx->orig_y = y;    

src/toxic_windows.h

@@ -189,7 +189,6 @@ struct ChatContext {
     /* specific for prompt */
     bool at_bottom;    /* true if line end is at bottom of window */
     int orig_y;        /* y axis point of line origin */
-    bool scroll;       /* used for prompt window hack to determine when to scroll down */
 };
 
 /* Start file transfer code */