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713 lines
18 KiB
713 lines
18 KiB
/*
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* util.c
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*
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* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
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* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdarg.h>
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#include "dialog.h"
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/* Needed in signal handler in mconf.c */
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int saved_x, saved_y;
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struct dialog_info dlg;
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static void set_mono_theme(void)
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{
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dlg.screen.atr = A_NORMAL;
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dlg.shadow.atr = A_NORMAL;
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dlg.dialog.atr = A_NORMAL;
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dlg.title.atr = A_BOLD;
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dlg.border.atr = A_NORMAL;
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dlg.button_active.atr = A_REVERSE;
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dlg.button_inactive.atr = A_DIM;
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dlg.button_key_active.atr = A_REVERSE;
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dlg.button_key_inactive.atr = A_BOLD;
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dlg.button_label_active.atr = A_REVERSE;
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dlg.button_label_inactive.atr = A_NORMAL;
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dlg.inputbox.atr = A_NORMAL;
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dlg.inputbox_border.atr = A_NORMAL;
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dlg.searchbox.atr = A_NORMAL;
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dlg.searchbox_title.atr = A_BOLD;
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dlg.searchbox_border.atr = A_NORMAL;
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dlg.position_indicator.atr = A_BOLD;
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dlg.menubox.atr = A_NORMAL;
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dlg.menubox_border.atr = A_NORMAL;
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dlg.item.atr = A_NORMAL;
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dlg.item_selected.atr = A_REVERSE;
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dlg.tag.atr = A_BOLD;
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dlg.tag_selected.atr = A_REVERSE;
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dlg.tag_key.atr = A_BOLD;
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dlg.tag_key_selected.atr = A_REVERSE;
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dlg.check.atr = A_BOLD;
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dlg.check_selected.atr = A_REVERSE;
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dlg.uarrow.atr = A_BOLD;
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dlg.darrow.atr = A_BOLD;
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}
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#define DLG_COLOR(dialog, f, b, h) \
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do { \
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dlg.dialog.fg = (f); \
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dlg.dialog.bg = (b); \
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dlg.dialog.hl = (h); \
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} while (0)
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static void set_classic_theme(void)
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{
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DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true);
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DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true);
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DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true);
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DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true);
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DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true);
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DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true);
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DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false);
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DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true);
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DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true);
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DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true);
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DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true);
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DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true);
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DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true);
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DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true);
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DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true);
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DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true);
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DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true);
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DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true);
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DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false);
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DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true);
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DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true);
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DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true);
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}
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static void set_blackbg_theme(void)
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{
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DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true);
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DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);
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DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);
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DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false);
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DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);
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DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false);
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DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false);
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DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true);
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DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false);
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DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false);
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DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true);
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DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false);
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DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false);
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DLG_COLOR(searchbox, COLOR_YELLOW, COLOR_BLACK, false);
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DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_BLACK, true);
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DLG_COLOR(searchbox_border, COLOR_BLACK, COLOR_BLACK, true);
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DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false);
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DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false);
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DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true);
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DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false);
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DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false);
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DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false);
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DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true);
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DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false);
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DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true);
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DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false);
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DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true);
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DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);
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DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);
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}
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static void set_bluetitle_theme(void)
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{
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set_classic_theme();
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DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true);
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DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true);
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DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true);
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DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true);
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DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true);
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DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true);
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DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true);
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}
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/*
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* Select color theme
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*/
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static int set_theme(const char *theme)
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{
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int use_color = 1;
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if (!theme)
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set_bluetitle_theme();
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else if (strcmp(theme, "classic") == 0)
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set_classic_theme();
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else if (strcmp(theme, "bluetitle") == 0)
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set_bluetitle_theme();
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else if (strcmp(theme, "blackbg") == 0)
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set_blackbg_theme();
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else if (strcmp(theme, "mono") == 0)
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use_color = 0;
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return use_color;
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}
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static void init_one_color(struct dialog_color *color)
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{
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static int pair = 0;
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pair++;
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init_pair(pair, color->fg, color->bg);
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if (color->hl)
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color->atr = A_BOLD | COLOR_PAIR(pair);
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else
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color->atr = COLOR_PAIR(pair);
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}
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static void init_dialog_colors(void)
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{
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init_one_color(&dlg.screen);
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init_one_color(&dlg.shadow);
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init_one_color(&dlg.dialog);
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init_one_color(&dlg.title);
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init_one_color(&dlg.border);
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init_one_color(&dlg.button_active);
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init_one_color(&dlg.button_inactive);
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init_one_color(&dlg.button_key_active);
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init_one_color(&dlg.button_key_inactive);
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init_one_color(&dlg.button_label_active);
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init_one_color(&dlg.button_label_inactive);
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init_one_color(&dlg.inputbox);
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init_one_color(&dlg.inputbox_border);
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init_one_color(&dlg.searchbox);
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init_one_color(&dlg.searchbox_title);
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init_one_color(&dlg.searchbox_border);
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init_one_color(&dlg.position_indicator);
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init_one_color(&dlg.menubox);
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init_one_color(&dlg.menubox_border);
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init_one_color(&dlg.item);
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init_one_color(&dlg.item_selected);
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init_one_color(&dlg.tag);
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init_one_color(&dlg.tag_selected);
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init_one_color(&dlg.tag_key);
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init_one_color(&dlg.tag_key_selected);
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init_one_color(&dlg.check);
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init_one_color(&dlg.check_selected);
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init_one_color(&dlg.uarrow);
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init_one_color(&dlg.darrow);
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}
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/*
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* Setup for color display
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*/
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static void color_setup(const char *theme)
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{
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int use_color;
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use_color = set_theme(theme);
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if (use_color && has_colors()) {
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start_color();
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init_dialog_colors();
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} else
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set_mono_theme();
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}
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/*
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* Set window to attribute 'attr'
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*/
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void attr_clear(WINDOW * win, int height, int width, chtype attr)
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{
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int i, j;
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wattrset(win, attr);
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for (i = 0; i < height; i++) {
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wmove(win, i, 0);
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for (j = 0; j < width; j++)
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waddch(win, ' ');
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}
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touchwin(win);
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}
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void dialog_clear(void)
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{
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int lines, columns;
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lines = getmaxy(stdscr);
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columns = getmaxx(stdscr);
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attr_clear(stdscr, lines, columns, dlg.screen.atr);
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/* Display background title if it exists ... - SLH */
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if (dlg.backtitle != NULL) {
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int i, len = 0, skip = 0;
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struct subtitle_list *pos;
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wattrset(stdscr, dlg.screen.atr);
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mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
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for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
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/* 3 is for the arrow and spaces */
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len += strlen(pos->text) + 3;
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}
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wmove(stdscr, 1, 1);
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if (len > columns - 2) {
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const char *ellipsis = "[...] ";
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waddstr(stdscr, ellipsis);
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skip = len - (columns - 2 - strlen(ellipsis));
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}
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for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
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if (skip == 0)
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waddch(stdscr, ACS_RARROW);
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else
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skip--;
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if (skip == 0)
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waddch(stdscr, ' ');
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else
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skip--;
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if (skip < strlen(pos->text)) {
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waddstr(stdscr, pos->text + skip);
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skip = 0;
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} else
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skip -= strlen(pos->text);
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if (skip == 0)
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waddch(stdscr, ' ');
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else
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skip--;
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}
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for (i = len + 1; i < columns - 1; i++)
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waddch(stdscr, ACS_HLINE);
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}
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wnoutrefresh(stdscr);
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}
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/*
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* Do some initialization for dialog
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*/
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int init_dialog(const char *backtitle)
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{
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int height, width;
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initscr(); /* Init curses */
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/* Get current cursor position for signal handler in mconf.c */
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getyx(stdscr, saved_y, saved_x);
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getmaxyx(stdscr, height, width);
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if (height < WINDOW_HEIGTH_MIN || width < WINDOW_WIDTH_MIN) {
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endwin();
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return -ERRDISPLAYTOOSMALL;
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}
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dlg.backtitle = backtitle;
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color_setup(getenv("MENUCONFIG_COLOR"));
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keypad(stdscr, TRUE);
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cbreak();
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noecho();
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dialog_clear();
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return 0;
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}
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void set_dialog_backtitle(const char *backtitle)
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{
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dlg.backtitle = backtitle;
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}
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void set_dialog_subtitles(struct subtitle_list *subtitles)
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{
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dlg.subtitles = subtitles;
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}
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/*
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* End using dialog functions.
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*/
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void end_dialog(int x, int y)
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{
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/* move cursor back to original position */
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move(y, x);
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refresh();
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endwin();
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}
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/* Print the title of the dialog. Center the title and truncate
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* tile if wider than dialog (- 2 chars).
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**/
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void print_title(WINDOW *dialog, const char *title, int width)
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{
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if (title) {
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int tlen = MIN(width - 2, strlen(title));
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wattrset(dialog, dlg.title.atr);
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mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
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mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
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waddch(dialog, ' ');
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}
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}
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/*
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* Print a string of text in a window, automatically wrap around to the
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* next line if the string is too long to fit on one line. Newline
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* characters '\n' are propperly processed. We start on a new line
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* if there is no room for at least 4 nonblanks following a double-space.
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*/
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void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
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{
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int newl, cur_x, cur_y;
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int prompt_len, room, wlen;
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char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0;
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strcpy(tempstr, prompt);
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prompt_len = strlen(tempstr);
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if (prompt_len <= width - x * 2) { /* If prompt is short */
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wmove(win, y, (width - prompt_len) / 2);
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waddstr(win, tempstr);
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} else {
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cur_x = x;
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cur_y = y;
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newl = 1;
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word = tempstr;
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while (word && *word) {
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sp = strpbrk(word, "\n ");
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if (sp && *sp == '\n')
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newline_separator = sp;
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if (sp)
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*sp++ = 0;
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/* Wrap to next line if either the word does not fit,
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or it is the first word of a new sentence, and it is
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short, and the next word does not fit. */
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room = width - cur_x;
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wlen = strlen(word);
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if (wlen > room ||
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(newl && wlen < 4 && sp
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&& wlen + 1 + strlen(sp) > room
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&& (!(sp2 = strpbrk(sp, "\n "))
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|| wlen + 1 + (sp2 - sp) > room))) {
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cur_y++;
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cur_x = x;
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}
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wmove(win, cur_y, cur_x);
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waddstr(win, word);
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getyx(win, cur_y, cur_x);
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/* Move to the next line if the word separator was a newline */
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if (newline_separator) {
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cur_y++;
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cur_x = x;
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newline_separator = 0;
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} else
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cur_x++;
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if (sp && *sp == ' ') {
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cur_x++; /* double space */
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while (*++sp == ' ') ;
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newl = 1;
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} else
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newl = 0;
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word = sp;
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}
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}
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}
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/*
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* Print a button
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*/
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void print_button(WINDOW * win, const char *label, int y, int x, int selected)
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{
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int i, temp;
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wmove(win, y, x);
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wattrset(win, selected ? dlg.button_active.atr
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: dlg.button_inactive.atr);
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waddstr(win, "<");
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temp = strspn(label, " ");
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label += temp;
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wattrset(win, selected ? dlg.button_label_active.atr
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: dlg.button_label_inactive.atr);
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for (i = 0; i < temp; i++)
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waddch(win, ' ');
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wattrset(win, selected ? dlg.button_key_active.atr
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: dlg.button_key_inactive.atr);
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waddch(win, label[0]);
|
|
wattrset(win, selected ? dlg.button_label_active.atr
|
|
: dlg.button_label_inactive.atr);
|
|
waddstr(win, (char *)label + 1);
|
|
wattrset(win, selected ? dlg.button_active.atr
|
|
: dlg.button_inactive.atr);
|
|
waddstr(win, ">");
|
|
wmove(win, y, x + temp + 1);
|
|
}
|
|
|
|
/*
|
|
* Draw a rectangular box with line drawing characters
|
|
*/
|
|
void
|
|
draw_box(WINDOW * win, int y, int x, int height, int width,
|
|
chtype box, chtype border)
|
|
{
|
|
int i, j;
|
|
|
|
wattrset(win, 0);
|
|
for (i = 0; i < height; i++) {
|
|
wmove(win, y + i, x);
|
|
for (j = 0; j < width; j++)
|
|
if (!i && !j)
|
|
waddch(win, border | ACS_ULCORNER);
|
|
else if (i == height - 1 && !j)
|
|
waddch(win, border | ACS_LLCORNER);
|
|
else if (!i && j == width - 1)
|
|
waddch(win, box | ACS_URCORNER);
|
|
else if (i == height - 1 && j == width - 1)
|
|
waddch(win, box | ACS_LRCORNER);
|
|
else if (!i)
|
|
waddch(win, border | ACS_HLINE);
|
|
else if (i == height - 1)
|
|
waddch(win, box | ACS_HLINE);
|
|
else if (!j)
|
|
waddch(win, border | ACS_VLINE);
|
|
else if (j == width - 1)
|
|
waddch(win, box | ACS_VLINE);
|
|
else
|
|
waddch(win, box | ' ');
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
int first_alpha(const char *string, const char *exempt)
|
|
{
|
|
int i, in_paren = 0, c;
|
|
|
|
for (i = 0; i < strlen(string); i++) {
|
|
c = tolower(string[i]);
|
|
|
|
if (strchr("<[(", c))
|
|
++in_paren;
|
|
if (strchr(">])", c) && in_paren > 0)
|
|
--in_paren;
|
|
|
|
if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
|
|
return i;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ncurses uses ESC to detect escaped char sequences. This resutl in
|
|
* a small timeout before ESC is actually delivered to the application.
|
|
* lxdialog suggest <ESC> <ESC> which is correctly translated to two
|
|
* times esc. But then we need to ignore the second esc to avoid stepping
|
|
* out one menu too much. Filter away all escaped key sequences since
|
|
* keypad(FALSE) turn off ncurses support for escape sequences - and thats
|
|
* needed to make notimeout() do as expected.
|
|
*/
|
|
int on_key_esc(WINDOW *win)
|
|
{
|
|
int key;
|
|
int key2;
|
|
int key3;
|
|
|
|
nodelay(win, TRUE);
|
|
keypad(win, FALSE);
|
|
key = wgetch(win);
|
|
key2 = wgetch(win);
|
|
do {
|
|
key3 = wgetch(win);
|
|
} while (key3 != ERR);
|
|
nodelay(win, FALSE);
|
|
keypad(win, TRUE);
|
|
if (key == KEY_ESC && key2 == ERR)
|
|
return KEY_ESC;
|
|
else if (key != ERR && key != KEY_ESC && key2 == ERR)
|
|
ungetch(key);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* redraw screen in new size */
|
|
int on_key_resize(void)
|
|
{
|
|
dialog_clear();
|
|
return KEY_RESIZE;
|
|
}
|
|
|
|
struct dialog_list *item_cur;
|
|
struct dialog_list item_nil;
|
|
struct dialog_list *item_head;
|
|
|
|
void item_reset(void)
|
|
{
|
|
struct dialog_list *p, *next;
|
|
|
|
for (p = item_head; p; p = next) {
|
|
next = p->next;
|
|
free(p);
|
|
}
|
|
item_head = NULL;
|
|
item_cur = &item_nil;
|
|
}
|
|
|
|
void item_make(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
struct dialog_list *p = malloc(sizeof(*p));
|
|
|
|
if (item_head)
|
|
item_cur->next = p;
|
|
else
|
|
item_head = p;
|
|
item_cur = p;
|
|
memset(p, 0, sizeof(*p));
|
|
|
|
va_start(ap, fmt);
|
|
vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
void item_add_str(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
size_t avail;
|
|
|
|
avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
|
|
|
|
va_start(ap, fmt);
|
|
vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
|
|
avail, fmt, ap);
|
|
item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
|
|
va_end(ap);
|
|
}
|
|
|
|
void item_set_tag(char tag)
|
|
{
|
|
item_cur->node.tag = tag;
|
|
}
|
|
void item_set_data(void *ptr)
|
|
{
|
|
item_cur->node.data = ptr;
|
|
}
|
|
|
|
void item_set_selected(int val)
|
|
{
|
|
item_cur->node.selected = val;
|
|
}
|
|
|
|
int item_activate_selected(void)
|
|
{
|
|
item_foreach()
|
|
if (item_is_selected())
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
void *item_data(void)
|
|
{
|
|
return item_cur->node.data;
|
|
}
|
|
|
|
char item_tag(void)
|
|
{
|
|
return item_cur->node.tag;
|
|
}
|
|
|
|
int item_count(void)
|
|
{
|
|
int n = 0;
|
|
struct dialog_list *p;
|
|
|
|
for (p = item_head; p; p = p->next)
|
|
n++;
|
|
return n;
|
|
}
|
|
|
|
void item_set(int n)
|
|
{
|
|
int i = 0;
|
|
item_foreach()
|
|
if (i++ == n)
|
|
return;
|
|
}
|
|
|
|
int item_n(void)
|
|
{
|
|
int n = 0;
|
|
struct dialog_list *p;
|
|
|
|
for (p = item_head; p; p = p->next) {
|
|
if (p == item_cur)
|
|
return n;
|
|
n++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const char *item_str(void)
|
|
{
|
|
return item_cur->node.str;
|
|
}
|
|
|
|
int item_is_selected(void)
|
|
{
|
|
return (item_cur->node.selected != 0);
|
|
}
|
|
|
|
int item_is_tag(char tag)
|
|
{
|
|
return (item_cur->node.tag == tag);
|
|
}
|
|
|