diff options
Diffstat (limited to 'scripts/config/lxdialog/util.c')
| -rw-r--r-- | scripts/config/lxdialog/util.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/scripts/config/lxdialog/util.c b/scripts/config/lxdialog/util.c new file mode 100644 index 0000000000..f82cebb9ff --- /dev/null +++ b/scripts/config/lxdialog/util.c @@ -0,0 +1,362 @@ +/* + * 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 "dialog.h" + +/* use colors by default? */ +bool use_colors = 1; + +const char *backtitle = NULL; + +/* + * Attribute values, default is for mono display + */ +chtype attributes[] = { + A_NORMAL, /* screen_attr */ + A_NORMAL, /* shadow_attr */ + A_NORMAL, /* dialog_attr */ + A_BOLD, /* title_attr */ + A_NORMAL, /* border_attr */ + A_REVERSE, /* button_active_attr */ + A_DIM, /* button_inactive_attr */ + A_REVERSE, /* button_key_active_attr */ + A_BOLD, /* button_key_inactive_attr */ + A_REVERSE, /* button_label_active_attr */ + A_NORMAL, /* button_label_inactive_attr */ + A_NORMAL, /* inputbox_attr */ + A_NORMAL, /* inputbox_border_attr */ + A_NORMAL, /* searchbox_attr */ + A_BOLD, /* searchbox_title_attr */ + A_NORMAL, /* searchbox_border_attr */ + A_BOLD, /* position_indicator_attr */ + A_NORMAL, /* menubox_attr */ + A_NORMAL, /* menubox_border_attr */ + A_NORMAL, /* item_attr */ + A_REVERSE, /* item_selected_attr */ + A_BOLD, /* tag_attr */ + A_REVERSE, /* tag_selected_attr */ + A_BOLD, /* tag_key_attr */ + A_REVERSE, /* tag_key_selected_attr */ + A_BOLD, /* check_attr */ + A_REVERSE, /* check_selected_attr */ + A_BOLD, /* uarrow_attr */ + A_BOLD /* darrow_attr */ +}; + +#include "colors.h" + +/* + * Table of color values + */ +int color_table[][3] = { + {SCREEN_FG, SCREEN_BG, SCREEN_HL}, + {SHADOW_FG, SHADOW_BG, SHADOW_HL}, + {DIALOG_FG, DIALOG_BG, DIALOG_HL}, + {TITLE_FG, TITLE_BG, TITLE_HL}, + {BORDER_FG, BORDER_BG, BORDER_HL}, + {BUTTON_ACTIVE_FG, BUTTON_ACTIVE_BG, BUTTON_ACTIVE_HL}, + {BUTTON_INACTIVE_FG, BUTTON_INACTIVE_BG, BUTTON_INACTIVE_HL}, + {BUTTON_KEY_ACTIVE_FG, BUTTON_KEY_ACTIVE_BG, BUTTON_KEY_ACTIVE_HL}, + {BUTTON_KEY_INACTIVE_FG, BUTTON_KEY_INACTIVE_BG, + BUTTON_KEY_INACTIVE_HL}, + {BUTTON_LABEL_ACTIVE_FG, BUTTON_LABEL_ACTIVE_BG, + BUTTON_LABEL_ACTIVE_HL}, + {BUTTON_LABEL_INACTIVE_FG, BUTTON_LABEL_INACTIVE_BG, + BUTTON_LABEL_INACTIVE_HL}, + {INPUTBOX_FG, INPUTBOX_BG, INPUTBOX_HL}, + {INPUTBOX_BORDER_FG, INPUTBOX_BORDER_BG, INPUTBOX_BORDER_HL}, + {SEARCHBOX_FG, SEARCHBOX_BG, SEARCHBOX_HL}, + {SEARCHBOX_TITLE_FG, SEARCHBOX_TITLE_BG, SEARCHBOX_TITLE_HL}, + {SEARCHBOX_BORDER_FG, SEARCHBOX_BORDER_BG, SEARCHBOX_BORDER_HL}, + {POSITION_INDICATOR_FG, POSITION_INDICATOR_BG, POSITION_INDICATOR_HL}, + {MENUBOX_FG, MENUBOX_BG, MENUBOX_HL}, + {MENUBOX_BORDER_FG, MENUBOX_BORDER_BG, MENUBOX_BORDER_HL}, + {ITEM_FG, ITEM_BG, ITEM_HL}, + {ITEM_SELECTED_FG, ITEM_SELECTED_BG, ITEM_SELECTED_HL}, + {TAG_FG, TAG_BG, TAG_HL}, + {TAG_SELECTED_FG, TAG_SELECTED_BG, TAG_SELECTED_HL}, + {TAG_KEY_FG, TAG_KEY_BG, TAG_KEY_HL}, + {TAG_KEY_SELECTED_FG, TAG_KEY_SELECTED_BG, TAG_KEY_SELECTED_HL}, + {CHECK_FG, CHECK_BG, CHECK_HL}, + {CHECK_SELECTED_FG, CHECK_SELECTED_BG, CHECK_SELECTED_HL}, + {UARROW_FG, UARROW_BG, UARROW_HL}, + {DARROW_FG, DARROW_BG, DARROW_HL}, +}; /* color_table */ + +/* + * 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) +{ + attr_clear(stdscr, LINES, COLS, screen_attr); + /* Display background title if it exists ... - SLH */ + if (backtitle != NULL) { + int i; + + wattrset(stdscr, screen_attr); + mvwaddstr(stdscr, 0, 1, (char *)backtitle); + wmove(stdscr, 1, 1); + for (i = 1; i < COLS - 1; i++) + waddch(stdscr, ACS_HLINE); + } + wnoutrefresh(stdscr); +} + +/* + * Do some initialization for dialog + */ +void init_dialog(void) +{ + initscr(); /* Init curses */ + keypad(stdscr, TRUE); + cbreak(); + noecho(); + + if (use_colors) /* Set up colors */ + color_setup(); + + dialog_clear(); +} + +/* + * Setup for color display + */ +void color_setup(void) +{ + int i; + + if (has_colors()) { /* Terminal supports color? */ + start_color(); + + /* Initialize color pairs */ + for (i = 0; i < ATTRIBUTE_COUNT; i++) + init_pair(i + 1, color_table[i][0], color_table[i][1]); + + /* Setup color attributes */ + for (i = 0; i < ATTRIBUTE_COUNT; i++) + attributes[i] = C_ATTR(color_table[i][2], i + 1); + } +} + +/* + * End using dialog functions. + */ +void end_dialog(void) +{ + 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, title_attr); + 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 replaced by spaces. 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 i, prompt_len, room, wlen; + char tempstr[MAX_LEN + 1], *word, *sp, *sp2; + + strcpy(tempstr, prompt); + + prompt_len = strlen(tempstr); + + /* + * Remove newlines + */ + for (i = 0; i < prompt_len; i++) { + if (tempstr[i] == '\n') + tempstr[i] = ' '; + } + + 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 = index(word, ' '); + 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 = index(sp, ' ')) + || 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); + 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 ? button_active_attr : button_inactive_attr); + waddstr(win, "<"); + temp = strspn(label, " "); + label += temp; + wattrset(win, selected ? button_label_active_attr + : button_label_inactive_attr); + for (i = 0; i < temp; i++) + waddch(win, ' '); + wattrset(win, selected ? button_key_active_attr + : button_key_inactive_attr); + waddch(win, label[0]); + wattrset(win, selected ? button_label_active_attr + : button_label_inactive_attr); + waddstr(win, (char *)label + 1); + wattrset(win, selected ? button_active_attr : button_inactive_attr); + 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, shadow_attr); + 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; +} |