linux-kernel - [PATCH 1/2] menuconfig: delete shadows, reclaim vertical space

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Message-ID: <94a94ef4-9d55-4293-8363-3c0243eceae1@p183>
Date:   Sat, 4 Mar 2023 19:55:25 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        adobriyan@...il.com
Subject: [PATCH 1/2] menuconfig: delete shadows, reclaim vertical space

Menuconfig has lots of vertical space wasted: on my system there are
17 lines of useful information about config options and 14 lines of
useless fluff: legend, horizontal separators and shadows.

Sitation is even worse on smaller terminals because fixed vertical lines
do not go away, but config option lines do decreasing informational
density even more.

Delete shadows and increase menu size to reclaim vertical space.

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 scripts/kconfig/lxdialog/checklist.c |    2 --
 scripts/kconfig/lxdialog/dialog.h    |    1 -
 scripts/kconfig/lxdialog/inputbox.c  |    2 --
 scripts/kconfig/lxdialog/menubox.c   |    6 ++----
 scripts/kconfig/lxdialog/textbox.c   |    2 --
 scripts/kconfig/lxdialog/util.c      |   22 ----------------------
 scripts/kconfig/lxdialog/yesno.c     |    2 --
 7 files changed, 2 insertions(+), 35 deletions(-)

--- a/scripts/kconfig/lxdialog/checklist.c
+++ b/scripts/kconfig/lxdialog/checklist.c
@@ -130,8 +130,6 @@ int dialog_checklist(const char *title, const char *prompt, int height,
 	x = (getmaxx(stdscr) - width) / 2;
 	y = (getmaxy(stdscr) - height) / 2;
 
-	draw_shadow(stdscr, y, x, height, width);
-
 	dialog = newwin(height, width, y, x);
 	keypad(dialog, TRUE);
 
--- a/scripts/kconfig/lxdialog/dialog.h
+++ b/scripts/kconfig/lxdialog/dialog.h
@@ -206,7 +206,6 @@ void print_button(WINDOW * win, const char *label, int y, int x, int selected);
 void print_title(WINDOW *dialog, const char *title, int width);
 void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
 	      chtype border);
-void draw_shadow(WINDOW * win, int y, int x, int height, int width);
 
 int first_alpha(const char *string, const char *exempt);
 int dialog_yesno(const char *title, const char *prompt, int height, int width);
--- a/scripts/kconfig/lxdialog/inputbox.c
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -52,8 +52,6 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
 	x = (getmaxx(stdscr) - width) / 2;
 	y = (getmaxy(stdscr) - height) / 2;
 
-	draw_shadow(stdscr, y, x, height, width);
-
 	dialog = newwin(height, width, y, x);
 	keypad(dialog, TRUE);
 
--- a/scripts/kconfig/lxdialog/menubox.c
+++ b/scripts/kconfig/lxdialog/menubox.c
@@ -183,7 +183,7 @@ int dialog_menu(const char *title, const char *prompt,
 	if (height < MENUBOX_HEIGTH_MIN || width < MENUBOX_WIDTH_MIN)
 		return -ERRDISPLAYTOOSMALL;
 
-	height -= 4;
+	height -= 2;
 	width  -= 5;
 	menu_height = height - 10;
 
@@ -191,9 +191,7 @@ int dialog_menu(const char *title, const char *prompt,
 
 	/* center dialog box on screen */
 	x = (getmaxx(stdscr) - width) / 2;
-	y = (getmaxy(stdscr) - height) / 2;
-
-	draw_shadow(stdscr, y, x, height, width);
+	y = 2;
 
 	dialog = newwin(height, width, y, x);
 	keypad(dialog, TRUE);
--- a/scripts/kconfig/lxdialog/textbox.c
+++ b/scripts/kconfig/lxdialog/textbox.c
@@ -88,8 +88,6 @@ int dialog_textbox(const char *title, char *tbuf, int initial_height,
 	x = (getmaxx(stdscr) - width) / 2;
 	y = (getmaxy(stdscr) - height) / 2;
 
-	draw_shadow(stdscr, y, x, height, width);
-
 	dialog = newwin(height, width, y, x);
 	keypad(dialog, TRUE);
 
--- a/scripts/kconfig/lxdialog/util.c
+++ b/scripts/kconfig/lxdialog/util.c
@@ -491,28 +491,6 @@ draw_box(WINDOW * win, int y, int x, int height, int width,
 	}
 }
 
-/*
- * Draw shadows along the right and bottom edge to give a more 3D look
- * to the boxes
- */
-void draw_shadow(WINDOW * win, int y, int x, int height, int width)
-{
-	int i;
-
-	if (has_colors()) {	/* Whether terminal supports color? */
-		wattrset(win, dlg.shadow.atr);
-		wmove(win, y + height, x + 2);
-		for (i = 0; i < width; i++)
-			waddch(win, winch(win) & A_CHARTEXT);
-		for (i = y + 1; i < y + height + 1; i++) {
-			wmove(win, i, x + width);
-			waddch(win, winch(win) & A_CHARTEXT);
-			waddch(win, winch(win) & A_CHARTEXT);
-		}
-		wnoutrefresh(win);
-	}
-}
-
 /*
  *  Return the position of the first alphabetic character in a string.
  */
--- a/scripts/kconfig/lxdialog/yesno.c
+++ b/scripts/kconfig/lxdialog/yesno.c
@@ -41,8 +41,6 @@ int dialog_yesno(const char *title, const char *prompt, int height, int width)
 	x = (getmaxx(stdscr) - width) / 2;
 	y = (getmaxy(stdscr) - height) / 2;
 
-	draw_shadow(stdscr, y, x, height, width);
-
 	dialog = newwin(height, width, y, x);
 	keypad(dialog, TRUE);