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Diffstat (limited to 'scripts/kconfig/lxdialog/util.c')
| -rw-r--r-- | scripts/kconfig/lxdialog/util.c | 713 |
1 files changed, 713 insertions, 0 deletions
diff --git a/scripts/kconfig/lxdialog/util.c b/scripts/kconfig/lxdialog/util.c new file mode 100644 index 000000000..f7abdeb92 --- /dev/null +++ b/scripts/kconfig/lxdialog/util.c @@ -0,0 +1,713 @@ +/* + * util.c + * + * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) + * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stdarg.h> + +#include "dialog.h" + +/* Needed in signal handler in mconf.c */ +int saved_x, saved_y; + +struct dialog_info dlg; + +static void set_mono_theme(void) +{ + dlg.screen.atr = A_NORMAL; + dlg.shadow.atr = A_NORMAL; + dlg.dialog.atr = A_NORMAL; + dlg.title.atr = A_BOLD; + dlg.border.atr = A_NORMAL; + dlg.button_active.atr = A_REVERSE; + dlg.button_inactive.atr = A_DIM; + dlg.button_key_active.atr = A_REVERSE; + dlg.button_key_inactive.atr = A_BOLD; + dlg.button_label_active.atr = A_REVERSE; + dlg.button_label_inactive.atr = A_NORMAL; + dlg.inputbox.atr = A_NORMAL; + dlg.inputbox_border.atr = A_NORMAL; + dlg.searchbox.atr = A_NORMAL; + dlg.searchbox_title.atr = A_BOLD; + dlg.searchbox_border.atr = A_NORMAL; + dlg.position_indicator.atr = A_BOLD; + dlg.menubox.atr = A_NORMAL; + dlg.menubox_border.atr = A_NORMAL; + dlg.item.atr = A_NORMAL; + dlg.item_selected.atr = A_REVERSE; + dlg.tag.atr = A_BOLD; + dlg.tag_selected.atr = A_REVERSE; + dlg.tag_key.atr = A_BOLD; + dlg.tag_key_selected.atr = A_REVERSE; + dlg.check.atr = A_BOLD; + dlg.check_selected.atr = A_REVERSE; + dlg.uarrow.atr = A_BOLD; + dlg.darrow.atr = A_BOLD; +} + +#define DLG_COLOR(dialog, f, b, h) \ +do { \ + dlg.dialog.fg = (f); \ + dlg.dialog.bg = (b); \ + dlg.dialog.hl = (h); \ +} while (0) + +static void set_classic_theme(void) +{ + DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true); + DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true); + DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true); + DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true); + DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true); + DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true); + DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false); + DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true); + DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true); + DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true); + DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true); + DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true); + DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true); + DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true); + DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true); + DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true); + DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true); + DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true); + DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false); + DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true); + DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true); + DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true); +} + +static void set_blackbg_theme(void) +{ + DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true); + DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false); + DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false); + DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false); + DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true); + + DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false); + DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false); + DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true); + DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false); + DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false); + DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true); + + DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false); + DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false); + + DLG_COLOR(searchbox, COLOR_YELLOW, COLOR_BLACK, false); + DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_BLACK, true); + DLG_COLOR(searchbox_border, COLOR_BLACK, COLOR_BLACK, true); + + DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false); + + DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false); + DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true); + + DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false); + DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false); + + DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false); + DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true); + DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false); + DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true); + + DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false); + DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true); + + DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false); + DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false); +} + +static void set_bluetitle_theme(void) +{ + set_classic_theme(); + DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true); + DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true); + DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true); + DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true); + DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true); + DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true); + DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true); + +} + +/* + * Select color theme + */ +static int set_theme(const char *theme) +{ + int use_color = 1; + if (!theme) + set_bluetitle_theme(); + else if (strcmp(theme, "classic") == 0) + set_classic_theme(); + else if (strcmp(theme, "bluetitle") == 0) + set_bluetitle_theme(); + else if (strcmp(theme, "blackbg") == 0) + set_blackbg_theme(); + else if (strcmp(theme, "mono") == 0) + use_color = 0; + + return use_color; +} + +static void init_one_color(struct dialog_color *color) +{ + static int pair = 0; + + pair++; + init_pair(pair, color->fg, color->bg); + if (color->hl) + color->atr = A_BOLD | COLOR_PAIR(pair); + else + color->atr = COLOR_PAIR(pair); +} + +static void init_dialog_colors(void) +{ + init_one_color(&dlg.screen); + init_one_color(&dlg.shadow); + init_one_color(&dlg.dialog); + init_one_color(&dlg.title); + init_one_color(&dlg.border); + init_one_color(&dlg.button_active); + init_one_color(&dlg.button_inactive); + init_one_color(&dlg.button_key_active); + init_one_color(&dlg.button_key_inactive); + init_one_color(&dlg.button_label_active); + init_one_color(&dlg.button_label_inactive); + init_one_color(&dlg.inputbox); + init_one_color(&dlg.inputbox_border); + init_one_color(&dlg.searchbox); + init_one_color(&dlg.searchbox_title); + init_one_color(&dlg.searchbox_border); + init_one_color(&dlg.position_indicator); + init_one_color(&dlg.menubox); + init_one_color(&dlg.menubox_border); + init_one_color(&dlg.item); + init_one_color(&dlg.item_selected); + init_one_color(&dlg.tag); + init_one_color(&dlg.tag_selected); + init_one_color(&dlg.tag_key); + init_one_color(&dlg.tag_key_selected); + init_one_color(&dlg.check); + init_one_color(&dlg.check_selected); + init_one_color(&dlg.uarrow); + init_one_color(&dlg.darrow); +} + +/* + * Setup for color display + */ +static void color_setup(const char *theme) +{ + int use_color; + + use_color = set_theme(theme); + if (use_color && has_colors()) { + start_color(); + init_dialog_colors(); + } else + set_mono_theme(); +} + +/* + * Set window to attribute 'attr' + */ +void attr_clear(WINDOW * win, int height, int width, chtype attr) +{ + int i, j; + + wattrset(win, attr); + for (i = 0; i < height; i++) { + wmove(win, i, 0); + for (j = 0; j < width; j++) + waddch(win, ' '); + } + touchwin(win); +} + +void dialog_clear(void) +{ + int lines, columns; + + lines = getmaxy(stdscr); + columns = getmaxx(stdscr); + + attr_clear(stdscr, lines, columns, dlg.screen.atr); + /* Display background title if it exists ... - SLH */ + if (dlg.backtitle != NULL) { + int i, len = 0, skip = 0; + struct subtitle_list *pos; + + wattrset(stdscr, dlg.screen.atr); + mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle); + + for (pos = dlg.subtitles; pos != NULL; pos = pos->next) { + /* 3 is for the arrow and spaces */ + len += strlen(pos->text) + 3; + } + + wmove(stdscr, 1, 1); + if (len > columns - 2) { + const char *ellipsis = "[...] "; + waddstr(stdscr, ellipsis); + skip = len - (columns - 2 - strlen(ellipsis)); + } + + for (pos = dlg.subtitles; pos != NULL; pos = pos->next) { + if (skip == 0) + waddch(stdscr, ACS_RARROW); + else + skip--; + + if (skip == 0) + waddch(stdscr, ' '); + else + skip--; + + if (skip < strlen(pos->text)) { + waddstr(stdscr, pos->text + skip); + skip = 0; + } else + skip -= strlen(pos->text); + + if (skip == 0) + waddch(stdscr, ' '); + else + skip--; + } + + for (i = len + 1; i < columns - 1; i++) + waddch(stdscr, ACS_HLINE); + } + wnoutrefresh(stdscr); +} + +/* + * Do some initialization for dialog + */ +int init_dialog(const char *backtitle) +{ + int height, width; + + initscr(); /* Init curses */ + + /* Get current cursor position for signal handler in mconf.c */ + getyx(stdscr, saved_y, saved_x); + + getmaxyx(stdscr, height, width); + if (height < WINDOW_HEIGTH_MIN || width < WINDOW_WIDTH_MIN) { + endwin(); + return -ERRDISPLAYTOOSMALL; + } + + dlg.backtitle = backtitle; + color_setup(getenv("MENUCONFIG_COLOR")); + + keypad(stdscr, TRUE); + cbreak(); + noecho(); + dialog_clear(); + + return 0; +} + +void set_dialog_backtitle(const char *backtitle) +{ + dlg.backtitle = backtitle; +} + +void set_dialog_subtitles(struct subtitle_list *subtitles) +{ + dlg.subtitles = subtitles; +} + +/* + * End using dialog functions. + */ +void end_dialog(int x, int y) +{ + /* move cursor back to original position */ + move(y, x); + refresh(); + endwin(); +} + +/* Print the title of the dialog. Center the title and truncate + * tile if wider than dialog (- 2 chars). + **/ +void print_title(WINDOW *dialog, const char *title, int width) +{ + if (title) { + int tlen = MIN(width - 2, strlen(title)); + wattrset(dialog, dlg.title.atr); + mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' '); + mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen); + waddch(dialog, ' '); + } +} + +/* + * Print a string of text in a window, automatically wrap around to the + * next line if the string is too long to fit on one line. Newline + * characters '\n' are propperly processed. We start on a new line + * if there is no room for at least 4 nonblanks following a double-space. + */ +void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x) +{ + int newl, cur_x, cur_y; + int prompt_len, room, wlen; + char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0; + + strcpy(tempstr, prompt); + + prompt_len = strlen(tempstr); + + if (prompt_len <= width - x * 2) { /* If prompt is short */ + wmove(win, y, (width - prompt_len) / 2); + waddstr(win, tempstr); + } else { + cur_x = x; + cur_y = y; + newl = 1; + word = tempstr; + while (word && *word) { + sp = strpbrk(word, "\n "); + if (sp && *sp == '\n') + newline_separator = sp; + + if (sp) + *sp++ = 0; + + /* Wrap to next line if either the word does not fit, + or it is the first word of a new sentence, and it is + short, and the next word does not fit. */ + room = width - cur_x; + wlen = strlen(word); + if (wlen > room || + (newl && wlen < 4 && sp + && wlen + 1 + strlen(sp) > room + && (!(sp2 = strpbrk(sp, "\n ")) + || wlen + 1 + (sp2 - sp) > room))) { + cur_y++; + cur_x = x; + } + wmove(win, cur_y, cur_x); + waddstr(win, word); + getyx(win, cur_y, cur_x); + + /* Move to the next line if the word separator was a newline */ + if (newline_separator) { + cur_y++; + cur_x = x; + newline_separator = 0; + } else + cur_x++; + + if (sp && *sp == ' ') { + cur_x++; /* double space */ + while (*++sp == ' ') ; + newl = 1; + } else + newl = 0; + word = sp; + } + } +} + +/* + * Print a button + */ +void print_button(WINDOW * win, const char *label, int y, int x, int selected) +{ + int i, temp; + + wmove(win, y, x); + wattrset(win, selected ? dlg.button_active.atr + : dlg.button_inactive.atr); + waddstr(win, "<"); + temp = strspn(label, " "); + label += temp; + wattrset(win, selected ? dlg.button_label_active.atr + : dlg.button_label_inactive.atr); + for (i = 0; i < temp; i++) + waddch(win, ' '); + wattrset(win, selected ? dlg.button_key_active.atr + : dlg.button_key_inactive.atr); + 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); +} |