Modify the pager to use windows.

The pager view is somewhat complex, due to the "mini-index" and the
positioning of the index_status vs pager_status changes depending on
$status_on_top as well as $pager_index_lines and $help.

To make things simpler, it creates four "pager windows":
index_status_window, index_window, pager_status_window, pager_window.

mutt_term_width() is renamed to mutt_window_wrap_cols() and a
mutt_window_t parameter passed in.

Also, the pager drawing loop calling display_line() has a
mutt_window_move() added to move to the beginning of the next line
each time.  This is in case the pager_window isn't flush with the left
side of the terminal.

1 files changed, 4 insertions, 4 deletions

diff --git a/mutt_curses.h b/mutt_curses.h
index 2d2fb280..1156c4ac 100644
--- a/mutt_curses.h
+++ b/mutt_curses.h
@@ -189,14 +189,14 @@ void mutt_window_clearline (mutt_window_t *, int row);
 void mutt_window_getyx (mutt_window_t *, int *y, int *x);
 
 
-static inline int mutt_term_width(short wrap)
+static inline int mutt_window_wrap_cols(mutt_window_t *win, short wrap)
 {
   if (wrap < 0)
-    return COLS > -wrap ? COLS + wrap : COLS;
+    return win->cols > -wrap ? win->cols + wrap : win->cols;
   else if (wrap)
-    return wrap < COLS ? wrap : COLS;
+    return wrap < win->cols ? wrap : win->cols;
   else
-    return COLS;
+    return win->cols;
 }
 
 extern int *ColorQuote;