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2a3e3873a1
Level up WARNS
307 lines
6.7 KiB
C
307 lines
6.7 KiB
C
/*
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* $Id: progressbox.c,v 1.23 2012/12/21 10:00:05 tom Exp $
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*
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* progressbox.c -- implements the progress box
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*
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* Copyright 2005 Valery Reznic
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* Copyright 2006-2012 Thomas E. Dickey
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to
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* Free Software Foundation, Inc.
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* 51 Franklin St., Fifth Floor
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* Boston, MA 02110, USA.
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*/
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#include <dialog.h>
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#include <dlg_keys.h>
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#define MIN_HIGH (4)
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#define MIN_WIDE (10 + 2 * (2 + MARGIN))
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typedef struct {
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DIALOG_CALLBACK obj;
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WINDOW *text;
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char line[MAX_LEN + 1];
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int is_eof;
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} MY_OBJ;
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/*
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* Return current line of text.
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*/
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static char *
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get_line(MY_OBJ * obj)
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{
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FILE *fp = obj->obj.input;
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int col = 0;
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int j, tmpint, ch;
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for (;;) {
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if ((ch = getc(fp)) == EOF) {
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obj->is_eof = 1;
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if (col) {
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break;
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} else {
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return NULL;
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}
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}
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if (ch == '\n')
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break;
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if (ch == '\r')
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break;
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if (col >= MAX_LEN)
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continue;
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if ((ch == TAB) && (dialog_vars.tab_correct)) {
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tmpint = dialog_state.tab_len
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- (col % dialog_state.tab_len);
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for (j = 0; j < tmpint; j++) {
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if (col < MAX_LEN) {
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obj->line[col] = ' ';
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++col;
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} else {
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break;
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}
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}
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} else {
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obj->line[col] = (char) ch;
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++col;
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}
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}
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obj->line[col] = '\0';
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return obj->line;
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}
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/*
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* Print a new line of text.
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*/
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static void
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print_line(MY_OBJ * obj, WINDOW *win, int row, int width)
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{
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int i, y, x;
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char *line = obj->line;
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(void) wmove(win, row, 0); /* move cursor to correct line */
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(void) waddch(win, ' ');
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#ifdef NCURSES_VERSION
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(void) waddnstr(win, line, MIN((int) strlen(line), width - 2));
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#else
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line[MIN((int) strlen(line), width - 2)] = '\0';
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waddstr(win, line);
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#endif
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getyx(win, y, x);
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(void) y;
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/* Clear 'residue' of previous line */
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for (i = 0; i < width - x; i++)
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(void) waddch(win, ' ');
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}
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static int
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pause_for_ok(WINDOW *dialog, int height, int width)
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{
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/* *INDENT-OFF* */
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static DLG_KEYS_BINDING binding[] = {
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HELPKEY_BINDINGS,
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ENTERKEY_BINDINGS,
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TRAVERSE_BINDINGS,
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END_KEYS_BINDING
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};
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/* *INDENT-ON* */
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int button;
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int key = 0, fkey;
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int result = DLG_EXIT_UNKNOWN;
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const char **buttons = dlg_ok_label();
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int check;
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int save_nocancel = dialog_vars.nocancel;
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bool redraw = TRUE;
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dialog_vars.nocancel = TRUE;
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button = dlg_default_button();
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dlg_register_window(dialog, "progressbox", binding);
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dlg_register_buttons(dialog, "progressbox", buttons);
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dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
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mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n');
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while (result == DLG_EXIT_UNKNOWN) {
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if (redraw) {
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redraw = FALSE;
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if (button < 0)
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button = 0;
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dlg_draw_buttons(dialog,
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height - 2, 0,
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buttons, button,
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FALSE, width);
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}
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key = dlg_mouse_wgetch(dialog, &fkey);
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if (dlg_result_key(key, fkey, &result))
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break;
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if (!fkey && (check = dlg_char_to_button(key, buttons)) >= 0) {
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result = dlg_ok_buttoncode(check);
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break;
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}
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if (fkey) {
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switch (key) {
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case DLGK_FIELD_NEXT:
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button = dlg_next_button(buttons, button);
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redraw = TRUE;
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break;
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case DLGK_FIELD_PREV:
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button = dlg_prev_button(buttons, button);
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redraw = TRUE;
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break;
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case DLGK_ENTER:
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result = dlg_ok_buttoncode(button);
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break;
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default:
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if (is_DLGK_MOUSE(key)) {
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result = dlg_ok_buttoncode(key - M_EVENT);
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if (result < 0)
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result = DLG_EXIT_OK;
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} else {
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beep();
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}
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break;
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}
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} else {
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beep();
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}
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}
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dlg_unregister_window(dialog);
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dialog_vars.nocancel = save_nocancel;
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return result;
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}
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int
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dlg_progressbox(const char *title,
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const char *cprompt,
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int height,
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int width,
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int pauseopt,
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FILE *fp)
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{
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int i;
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int x, y, thigh;
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WINDOW *dialog, *text;
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MY_OBJ *obj;
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char *prompt = dlg_strclone(cprompt);
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int result;
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dlg_tab_correct_str(prompt);
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dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, MIN_WIDE);
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dlg_print_size(height, width);
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dlg_ctl_size(height, width);
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x = dlg_box_x_ordinate(width);
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y = dlg_box_y_ordinate(height);
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thigh = height - (2 * MARGIN);
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dialog = dlg_new_window(height, width, y, x);
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dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
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dlg_draw_title(dialog, title);
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dlg_draw_helpline(dialog, FALSE);
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if (*prompt != '\0') {
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int y2, x2;
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(void) wattrset(dialog, dialog_attr);
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dlg_print_autowrap(dialog, prompt, height, width);
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getyx(dialog, y2, x2);
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(void) x2;
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++y2;
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wmove(dialog, y2, MARGIN);
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for (i = 0; i < getmaxx(dialog) - 2 * MARGIN; i++)
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(void) waddch(dialog, dlg_boxchar(ACS_HLINE));
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y += y2;
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thigh -= y2;
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}
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/* Create window for text region, used for scrolling text */
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text = dlg_sub_window(dialog,
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thigh,
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width - (2 * MARGIN),
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y + MARGIN,
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x + MARGIN);
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(void) wrefresh(dialog);
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(void) wmove(dialog, thigh, (MARGIN + 1));
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(void) wnoutrefresh(dialog);
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obj = dlg_calloc(MY_OBJ, 1);
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assert_ptr(obj, "dlg_progressbox");
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obj->obj.input = fp;
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obj->obj.win = dialog;
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obj->text = text;
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dlg_attr_clear(text, thigh, getmaxx(text), dialog_attr);
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for (i = 0; get_line(obj); i++) {
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if (i < thigh) {
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print_line(obj, text, i, width - (2 * MARGIN));
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} else {
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scrollok(text, TRUE);
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scroll(text);
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scrollok(text, FALSE);
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print_line(obj, text, thigh - 1, width - (2 * MARGIN));
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}
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(void) wrefresh(text);
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dlg_trace_win(dialog);
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if (obj->is_eof)
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break;
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}
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if (pauseopt) {
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scrollok(text, TRUE);
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wscrl(text, 1 + MARGIN);
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(void) wrefresh(text);
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result = pause_for_ok(dialog, height, width);
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} else {
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wrefresh(dialog);
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result = DLG_EXIT_OK;
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}
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dlg_del_window(dialog);
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free(prompt);
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free(obj);
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return result;
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}
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/*
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* Display text from a stdin in a scrolling window.
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*/
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int
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dialog_progressbox(const char *title, const char *cprompt, int height, int width)
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{
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int result;
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result = dlg_progressbox(title,
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cprompt,
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height,
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width,
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FALSE,
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dialog_state.pipe_input);
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dialog_state.pipe_input = 0;
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return result;
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}
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