move resize.c into lib-ui.

[apps/madmutt.git] / lib-ui / resize.c

diff --git a/lib-ui/resize.c b/lib-ui/resize.c
new file mode 100644 (file)
index 0000000..82fe316
--- /dev/null
+++ b/lib-ui/resize.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright notice from original mutt:
+ * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
+ *
+ * This file is part of mutt-ng, see http://www.muttng.org/.
+ * It's licensed under the GNU General Public License,
+ * please see the file GPL in the top level source directory.
+ */
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#if defined(USE_SLANG_CURSES) || defined(HAVE_RESIZETERM)
+
+#include <lib-ui/curses.h>
+
+#include "mutt.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <termios.h>
+
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#else
+# ifdef HAVE_IOCTL_H
+# include <ioctl.h>
+# endif
+#endif
+
+/* this routine should be called after receiving SIGWINCH */
+void mutt_resize_screen (void)
+{
+  char *cp;
+  int fd;
+  struct winsize w;
+
+#ifdef HAVE_RESIZETERM
+  int SLtt_Screen_Rows, SLtt_Screen_Cols;
+#endif
+
+  SLtt_Screen_Rows = -1;
+  SLtt_Screen_Cols = -1;
+  if ((fd = open ("/dev/tty", O_RDONLY)) != -1) {
+    if (ioctl (fd, TIOCGWINSZ, &w) != -1) {
+      SLtt_Screen_Rows = w.ws_row;
+      SLtt_Screen_Cols = w.ws_col;
+    }
+    close (fd);
+  }
+  if (SLtt_Screen_Rows <= 0) {
+    if ((cp = getenv ("LINES")) != NULL) {
+      SLtt_Screen_Rows = atoi (cp);
+    }
+    else
+      SLtt_Screen_Rows = 24;
+  }
+  if (SLtt_Screen_Cols <= 0) {
+    if ((cp = getenv ("COLUMNS")) != NULL)
+      SLtt_Screen_Cols = atoi (cp);
+    else
+      SLtt_Screen_Cols = 80;
+  }
+#ifdef USE_SLANG_CURSES
+  delwin (stdscr);
+  SLsmg_reset_smg ();
+  SLsmg_init_smg ();
+  stdscr = newwin (0, 0, 0, 0);
+  keypad (stdscr, TRUE);
+#else
+  resizeterm (SLtt_Screen_Rows, SLtt_Screen_Cols);
+#endif
+}
+
+#endif /* defined(USE_SLANG_CURSES) || defined(HAVE_RESIZETERM) */