This helper is the same as the sample code in the NCURSES HOWTO [1], but it is over-engineering to be used for nconf.
I do not see any good reason to use the 'float' type just for the division by 2. All the call-sites pass a non-NULL pointer to the first argument, so 'if (win == NULL) win = stdscr;' is dead code. 'if (startx != 0) x = startx;' is dead code because 'x' will be overridden some lines below, by 'x = startx + (int)temp;'. All the call-sites pass a non-zero value to the second argument, so 'if (starty != 0)' is always true. getyx(win, y, x) is also dead-code because both 'y' and 'x' are overridden. All the call-sites pass 0 to the third parameter, so 'startx' can be removed. All the call-sites pass a non-zero value to the fourth parameter, so 'if (width == 0) width = 80;' is dead code. Change the type of the last parameter from 'chtype' to 'int' to be aligned with the prototype, 'int wattrset(WINDOW *win, int attrs);' I also slightly cleaned up the indentation style. [1]: https://tldp.org/HOWTO/NCURSES-Programming-HOWTO/color.html Signed-off-by: Masahiro Yamada <masahi...@kernel.org> --- scripts/kconfig/nconf.c | 2 +- scripts/kconfig/nconf.gui.c | 31 ++++--------------------------- scripts/kconfig/nconf.h | 7 +------ 3 files changed, 6 insertions(+), 34 deletions(-) diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c index 5209a18eeacb..b11b75f83f7e 100644 --- a/scripts/kconfig/nconf.c +++ b/scripts/kconfig/nconf.c @@ -953,7 +953,7 @@ static void show_menu(const char *prompt, const char *instructions, current_instructions = instructions; clear(); - print_in_middle(stdscr, 1, 0, getmaxx(stdscr), + print_in_middle(stdscr, 1, getmaxx(stdscr), menu_backtitle, attr_main_heading); diff --git a/scripts/kconfig/nconf.gui.c b/scripts/kconfig/nconf.gui.c index e747590cee17..9aedf40f1dc0 100644 --- a/scripts/kconfig/nconf.gui.c +++ b/scripts/kconfig/nconf.gui.c @@ -117,32 +117,10 @@ 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 length, x, y; - float temp; - - - if (win == NULL) - win = stdscr; - getyx(win, y, x); - if (startx != 0) - x = startx; - if (starty != 0) - y = starty; - if (width == 0) - width = 80; - - length = strlen(string); - temp = (width - length) / 2; - x = startx + (int)temp; - wattrset(win, color); - mvwprintw(win, y, x, "%s", string); - refresh(); +void print_in_middle(WINDOW *win, int y, int width, const char *str, int attrs) +{ + wattrset(win, attrs); + mvwprintw(win, y, (width - strlen(str)) / 2, "%s", str); } int get_line_no(const char *text) @@ -577,7 +555,6 @@ void show_scroll_win(WINDOW *main_window, text_cols, 0); print_in_middle(win, text_lines+2, - 0, text_cols, "<OK>", attr_dialog_menu_fore); diff --git a/scripts/kconfig/nconf.h b/scripts/kconfig/nconf.h index 90a1ae331878..6f925bc74eb3 100644 --- a/scripts/kconfig/nconf.h +++ b/scripts/kconfig/nconf.h @@ -68,12 +68,7 @@ typedef enum { 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); +void print_in_middle(WINDOW *win, int y, int width, const char *str, int attrs); int get_line_length(const char *line); int get_line_no(const char *text); const char *get_line(const char *text, int line_no); -- 2.27.0
