/* * 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; char *backtitle = NULL; const char *dialog_result; /* * 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 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; if ((! in_paren) && isalpha(c) && strchr(exempt, c) == 0) return i; } return 0; } /* * Get the first selected item in the dialog_list_item list. */ struct dialog_list_item * first_sel_item(int item_no, struct dialog_list_item ** items) { int i; for (i = 0; i < item_no; i++) { if (items[i]->selected) return items[i]; } return NULL; }