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Diffstat (limited to 'gnu/lib/libodialog/inputbox.c')
| -rw-r--r-- | gnu/lib/libodialog/inputbox.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/gnu/lib/libodialog/inputbox.c b/gnu/lib/libodialog/inputbox.c new file mode 100644 index 0000000..1f61ed5 --- /dev/null +++ b/gnu/lib/libodialog/inputbox.c @@ -0,0 +1,190 @@ +/* + * 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> +#include "dialog.priv.h" + + +/* + * Display a dialog box for inputing a string + */ +int dialog_inputbox(unsigned char *title, unsigned char *prompt, int height, int width, unsigned char *result) +{ + int i, j, x, y, box_y, box_x, box_width, first, + key = 0, button = -1; + unsigned char instr[MAX_LEN+1]; + WINDOW *dialog; + + if (height < 0) + height = strheight(prompt)+2+4; + if (width < 0) { + i = strwidth(prompt); + j = ((title != NULL) ? strwidth(title) : 0); + width = MAX(i,j) + 4; + } + width = MAX(width,24); + + if (width > COLS) + width = COLS; + if (height > LINES) + height = LINES; + /* center dialog box on screen */ + x = DialogX ? DialogX : (COLS - width)/2; + y = DialogY ? DialogY : (LINES - height)/2; + +#ifdef HAVE_NCURSES + if (use_shadow) + draw_shadow(stdscr, y, x, height, width); +#endif + dialog = newwin(height, width, y, x); + if (dialog == NULL) { + endwin(); + fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height,width,y,x); + exit(1); + } + 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); + wmove(dialog, 1, 2); + print_autowrap(dialog, prompt, height-1, width-2, width, 1, 2, TRUE, FALSE); + + /* 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); + + display_helpline(dialog, height-1, width); + + x = width/2-11; + y = height-2; + print_button(dialog, "Cancel", y, x+14, FALSE); + print_button(dialog, " OK ", y, x, TRUE); + + first = 1; + strcpy(instr, result); + wattrset(dialog, dialog_attr); + + while (key != ESC) { + + if (button == -1) { /* Input box selected */ + key = line_edit(dialog, box_y, box_x, -1, box_width, inputbox_attr, first, instr, DialogInputAttrs); + first = 0; + } + else + key = wgetch(dialog); + + switch (key) { + case 'O': + case 'o': + delwin(dialog); + strcpy(result, instr); + return 0; + case 'C': + case 'c': + delwin(dialog); + return 1; + case KEY_UP: + case KEY_LEFT: + case KEY_BTAB: + 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); + 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); + break; + } + break; + case ' ': + case '\n': + case '\r': + delwin(dialog); + if (button < 1) + strcpy(result, instr); + return (button == -1 ? 0 : button); + case ESC: + break; + case KEY_F(1): + case '?': + display_helpfile(); + break; + } + } + + delwin(dialog); + return -1; /* ESC pressed */ +} +/* End of dialog_inputbox() */ |
