diff options
author | Karl Berry <karl@freefriends.org> | 2006-01-17 21:16:42 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2006-01-17 21:16:42 +0000 |
commit | a3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (patch) | |
tree | f4a8a34f904c1bb86adcc3ae0e14434badc6dbe4 /Build/source/utils/dialog/inputbox.c | |
parent | 6c0eafbb1395d426a72a74538e0b2a95e8344ca6 (diff) |
utils 1
git-svn-id: svn://tug.org/texlive/trunk@1484 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/utils/dialog/inputbox.c')
-rw-r--r-- | Build/source/utils/dialog/inputbox.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/Build/source/utils/dialog/inputbox.c b/Build/source/utils/dialog/inputbox.c new file mode 100644 index 00000000000..e6eb98e02ad --- /dev/null +++ b/Build/source/utils/dialog/inputbox.c @@ -0,0 +1,230 @@ +/* + * inputbox.c -- implements the input box + * + * AUTHOR: Savio Lam (lam836@cs.cuhk.hk) + * + * 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" + + +/* + * Display a dialog box for inputing a string + */ +int dialog_inputbox(char *title, char *prompt, int height, int width, + char *init) +{ + int i, x, y, box_y, box_x, box_width, + input_x = 0, scroll = 0, key = 0, button = -1; + unsigned char instr[MAX_LEN+1]; + WINDOW *dialog; + + /* center dialog box on screen */ + x = (COLS - width)/2; + y = (LINES - height)/2; + +#ifdef HAVE_NCURSES + if (use_shadow) + draw_shadow(stdscr, y, x, height, width); +#endif + dialog = newwin(height, width, y, x); + keypad(dialog, TRUE); + + draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); + wattrset(dialog, border_attr); + wmove(dialog, height-3, 0); + waddch(dialog, ACS_LTEE); + for (i = 0; i < width-2; i++) + waddch(dialog, ACS_HLINE); + wattrset(dialog, dialog_attr); + waddch(dialog, ACS_RTEE); + wmove(dialog, height-2, 1); + for (i = 0; i < width-2; i++) + waddch(dialog, ' '); + + if (title != NULL) { + wattrset(dialog, title_attr); + wmove(dialog, 0, (width - strlen(title))/2 - 1); + waddch(dialog, ' '); + waddstr(dialog, title); + waddch(dialog, ' '); + } + wattrset(dialog, dialog_attr); + print_autowrap(dialog, prompt, width, 1, 3); + + /* Draw the input field box */ + box_width = width-6; + getyx(dialog, y, x); + box_y = y + 2; + box_x = (width - box_width)/2; + draw_box(dialog, y+1, box_x-1, 3, box_width+2, border_attr, dialog_attr); + + x = width/2-11; + y = height-2; + print_button(dialog, "Cancel", y, x+14, FALSE); + print_button(dialog, " OK ", y, x, TRUE); + + /* Set up the initial value */ + wmove(dialog, box_y, box_x); + wattrset(dialog, inputbox_attr); + if (!init) { + instr[0] = '\0'; + } else { + strcpy((char*)instr, init); + } + input_x = strlen((char*)instr); + if (input_x >= box_width) { + scroll = input_x - box_width + 1; + input_x = box_width - 1; + for (i = 0; i < box_width-1; i++) { + waddch(dialog, instr[scroll+i]); + } + } else { + waddstr(dialog, (char*)instr); + } + wmove(dialog, box_y, box_x + input_x); + + wrefresh(dialog); + while (key != ESC) { + key = wgetch(dialog); + + if (button == -1) { /* Input box selected */ + switch (key) { + case TAB: + case KEY_UP: + case KEY_DOWN: + break; + case KEY_LEFT: + continue; + case KEY_RIGHT: + continue; + case KEY_BACKSPACE: + if (input_x || scroll) { + wattrset(dialog, inputbox_attr); + if (!input_x) { + scroll = scroll < box_width-1 ? 0 : scroll-(box_width-1); + wmove(dialog, box_y, box_x); + for (i = 0; i < box_width; i++) + waddch(dialog, instr[scroll+input_x+i] ? instr[scroll+input_x+i] : ' '); + input_x = strlen((char*)instr) - scroll; + } + else + input_x--; + instr[scroll+input_x] = '\0'; + wmove(dialog, box_y, input_x + box_x); + waddch(dialog, ' '); + wmove(dialog, box_y, input_x + box_x); + wrefresh(dialog); + } + continue; + default: + if (key < 0x100 && isprint(key)) { + if (scroll+input_x < MAX_LEN) { + wattrset(dialog, inputbox_attr); + instr[scroll+input_x] = key; + instr[scroll+input_x+1] = '\0'; + if (input_x == box_width-1) { + scroll++; + wmove(dialog, box_y, box_x); + for (i = 0; i < box_width-1; i++) + waddch(dialog, instr[scroll+i]); + } + else { + wmove(dialog, box_y, input_x++ + box_x); + waddch(dialog, key); + } + wrefresh(dialog); + } else + flash(); /* Alarm user about overflow */ + continue; + } + } + } + + switch (key) { + case 'O': + case 'o': + delwin(dialog); + fprintf(stderr, (char*)instr); + return 0; + case 'C': + case 'c': + delwin(dialog); + return 1; + case KEY_UP: + case KEY_LEFT: + switch (button) { + case -1: + button = 1; /* Indicates "Cancel" button is selected */ + print_button(dialog, " OK ", y, x, FALSE); + print_button(dialog, "Cancel", y, x+14, TRUE); + wrefresh(dialog); + break; + case 0: + button = -1; /* Indicates input box is selected */ + print_button(dialog, "Cancel", y, x+14, FALSE); + print_button(dialog, " OK ", y, x, TRUE); + wmove(dialog, box_y, box_x + input_x); + wrefresh(dialog); + break; + case 1: + button = 0; /* Indicates "OK" button is selected */ + print_button(dialog, "Cancel", y, x+14, FALSE); + print_button(dialog, " OK ", y, x, TRUE); + wrefresh(dialog); + break; + } + break; + case TAB: + case KEY_DOWN: + case KEY_RIGHT: + switch (button) { + case -1: + button = 0; /* Indicates "OK" button is selected */ + print_button(dialog, "Cancel", y, x+14, FALSE); + print_button(dialog, " OK ", y, x, TRUE); + wrefresh(dialog); + break; + case 0: + button = 1; /* Indicates "Cancel" button is selected */ + print_button(dialog, " OK ", y, x, FALSE); + print_button(dialog, "Cancel", y, x+14, TRUE); + wrefresh(dialog); + break; + case 1: + button = -1; /* Indicates input box is selected */ + print_button(dialog, "Cancel", y, x+14, FALSE); + print_button(dialog, " OK ", y, x, TRUE); + wmove(dialog, box_y, box_x + input_x); + wrefresh(dialog); + break; + } + break; + case ' ': + case '\n': + delwin(dialog); + fprintf(stderr, (char*)instr); + return (button == -1 ? 0 : button); + case ESC: + break; + } + } + + delwin(dialog); + return -1; /* ESC pressed */ +} +/* End of dialog_inputbox() */ |