kconfig: new configuration interface (nconfig)

This patch was inspired by the kernel projects page, where an ncurses
replacement for menuconfig was mentioned (by Sam Ravnborg).

Building on menuconfig, this patch implements a more modern look
interface using ncurses and ncurses' satellite libraries (menu, panel,
form). The implementation does not depend on lxdialog, which is
currently distributed with the kernel.

Signed-off-by: Nir Tzachar <nir.tzachar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/kconfig/nconf.h b/scripts/kconfig/nconf.h
new file mode 100644
index 0000000..fb42966
--- /dev/null
+++ b/scripts/kconfig/nconf.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Derived from menuconfig.
+ *
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <locale.h>
+#include <curses.h>
+#include <menu.h>
+#include <panel.h>
+#include <form.h>
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+
+#include "ncurses.h"
+
+#define max(a, b) ({\
+		typeof(a) _a = a;\
+		typeof(b) _b = b;\
+		_a > _b ? _a : _b; })
+
+#define min(a, b) ({\
+		typeof(a) _a = a;\
+		typeof(b) _b = b;\
+		_a < _b ? _a : _b; })
+
+typedef enum {
+	NORMAL = 1,
+	MAIN_HEADING,
+	MAIN_MENU_BOX,
+	MAIN_MENU_FORE,
+	MAIN_MENU_BACK,
+	MAIN_MENU_GREY,
+	MAIN_MENU_HEADING,
+	SCROLLWIN_TEXT,
+	SCROLLWIN_HEADING,
+	SCROLLWIN_BOX,
+	DIALOG_TEXT,
+	DIALOG_MENU_FORE,
+	DIALOG_MENU_BACK,
+	DIALOG_BOX,
+	INPUT_BOX,
+	INPUT_HEADING,
+	INPUT_TEXT,
+	INPUT_FIELD,
+	FUNCTION_TEXT,
+	FUNCTION_HIGHLIGHT,
+	ATTR_MAX
+} attributes_t;
+extern attributes_t attributes[];
+
+typedef enum {
+	F_HELP = 1,
+	F_SYMBOL = 2,
+	F_INSTS = 3,
+	F_CONF = 4,
+	F_BACK = 5,
+	F_SAVE = 6,
+	F_LOAD = 7,
+	F_EXIT = 8
+} function_key;
+
+void set_colors(void);
+
+/* this changes the windows attributes !!! */
+void print_in_middle(WINDOW *win,
+		int starty,
+		int startx,
+		int width,
+		const char *string,
+		chtype color);
+int get_line_length(const char *line);
+int get_line_no(const char *text);
+const char *get_line(const char *text, int line_no);
+void fill_window(WINDOW *win, const char *text);
+int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...);
+int dialog_inputbox(WINDOW *main_window,
+		const char *title, const char *prompt,
+		const char *init, char *result, int result_len);
+void refresh_all_windows(WINDOW *main_window);
+void show_scroll_win(WINDOW *main_window,
+		const char *title,
+		const char *text);