c76f07938c
git-subtree-dir: contrib/bsddialog git-subtree-mainline: a46722b580567799b484b5a81728eaf380777e04 git-subtree-split: 857c66bb5f3c5651b012beb1b5ea6ba39354ea94
281 lines
7.0 KiB
C
281 lines
7.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021 Alfonso Sabato Siciliano
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <string.h>
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#ifdef PORTNCURSES
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#include <ncurses/curses.h>
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#else
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#include <curses.h>
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#endif
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#include "bsddialog.h"
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#include "lib_util.h"
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#include "bsddialog_theme.h"
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/* "Text": tailbox - tailboxbg - textbox */
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#define BUTTON_TEXTBOX "HELP"
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extern struct bsddialog_theme t;
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enum textmode { TAILMODE, TAILBGMODE, TEXTMODE};
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static void
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textbox_autosize(struct bsddialog_conf conf, int rows, int cols, int *h, int *w,
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int hpad, int wpad)
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{
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if (cols == BSDDIALOG_AUTOSIZE) {
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*w = VBORDERS;
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/* buttons size */
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*w += strlen(BUTTON_TEXTBOX) + 2 /* text delims*/;
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/* text size */
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*w = MAX(*w, wpad + VBORDERS);
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/* avoid terminal overflow */
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*w = MIN(*w, widget_max_width(conf)-1); /* again -1, fix util.c */
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}
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if (rows == BSDDIALOG_AUTOSIZE) {
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*h = hpad + 4; /* HBORDERS + button border */
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/* avoid terminal overflow */
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*h = MIN(*h, widget_max_height(conf));
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}
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}
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static int textbox_checksize(int rows, int cols, int hpad, int wpad)
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{
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int mincols;
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mincols = VBORDERS + strlen(BUTTON_TEXTBOX) + 2 /* text delims */;
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if (cols < mincols)
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RETURN_ERROR("Few cols for the textbox");
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if (rows < 4 /* HBORDERS + button*/ + (hpad > 0 ? 1 : 0))
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RETURN_ERROR("Few rows for the textbox");
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return 0;
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}
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static int
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do_textbox(enum textmode mode, struct bsddialog_conf conf, char* path, int rows, int cols)
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{
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WINDOW *widget, *pad, *shadow;
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int i, input, y, x, h, w, hpad, wpad, ypad, xpad, ys, ye, xs, xe, printrows;
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char buf[BUFSIZ], *exitbutt;
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FILE *fp;
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bool loop;
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int output;
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if (mode == TAILMODE || mode == TAILBGMODE) {
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bsddialog_msgbox(conf, "Tailbox and Tailboxbg unimplemented", rows, cols);
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RETURN_ERROR("Tailbox and Tailboxbg unimplemented");
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}
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if ((fp = fopen(path, "r")) == NULL)
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RETURN_ERROR("Cannot open file");
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/*if (mode == TAILMODE) {
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fseek (fp, 0, SEEK_END);
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i = nlines = 0;
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while (i < hpad) {
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line = ;
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}
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for (i=hpad-1; i--; i>=0) {
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}
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}*/
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hpad = 1;
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wpad = 1;
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pad = newpad(hpad, wpad);
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wbkgd(pad, t.widgetcolor);
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i = 0;
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while(fgets(buf, BUFSIZ, fp) != NULL) {
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if ((int) strlen(buf) > wpad) {
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wpad = strlen(buf);
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wresize(pad, hpad, wpad);
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}
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if (i > hpad-1) {
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hpad++;
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wresize(pad, hpad, wpad);
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}
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mvwaddstr(pad, i, 0, buf);
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i++;
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}
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fclose(fp);
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if (set_widget_size(conf, rows, cols, &h, &w) != 0)
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return BSDDIALOG_ERROR;
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textbox_autosize(conf, rows, cols, &h, &w, hpad, wpad);
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if (textbox_checksize(h, w, hpad, wpad) != 0)
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return BSDDIALOG_ERROR;
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if (set_widget_position(conf, &y, &x, h, w) != 0)
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return BSDDIALOG_ERROR;
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if (new_widget_withtextpad(conf, &shadow, &widget, y, x, h, w, RAISED,
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NULL, NULL, NULL, true) != 0)
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return BSDDIALOG_ERROR;
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exitbutt = conf.button.exit_label == NULL ? BUTTON_TEXTBOX : conf.button.exit_label;
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draw_button(widget, h-2, (w-2)/2 - strlen(exitbutt)/2, strlen(exitbutt)+2,
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exitbutt, true, true);
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wrefresh(widget);
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ys = y + 1;
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xs = x + 1;
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ye = ys + h - 5;
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xe = xs + w - 3;
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ypad = xpad = 0;
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printrows = h-4;
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loop = true;
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while(loop) {
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prefresh(pad, ypad, xpad, ys, xs, ye, xe);
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input = getch();
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switch(input) {
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case KEY_ENTER:
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case 10: /* Enter */
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output = BSDDIALOG_YESOK;
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loop = false;
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break;
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case 27: /* Esc */
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output = BSDDIALOG_ESC;
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loop = false;
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break;
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case KEY_HOME:
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ypad = 0;
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break;
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case KEY_END:
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ypad = hpad - printrows;
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ypad = ypad < 0 ? 0 : ypad;
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break;
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case KEY_PPAGE:
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ypad -= printrows;
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ypad = ypad < 0 ? 0 : ypad;
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break;
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case KEY_NPAGE:
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ypad += printrows;
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ypad = ypad + printrows > hpad ? hpad - printrows : ypad;
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break;
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case '0':
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xpad = 0;
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case KEY_LEFT:
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case 'h':
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xpad = xpad > 0 ? xpad - 1 : 0;
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break;
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case KEY_RIGHT:
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case 'l':
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xpad = (xpad + w-2) < wpad-1 ? xpad + 1 : xpad;
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break;
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case KEY_UP:
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case 'k':
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ypad = ypad > 0 ? ypad - 1 : 0;
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break;
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case KEY_DOWN:
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case'j':
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ypad = ypad + printrows <= hpad -1 ? ypad + 1 : ypad;
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break;
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case KEY_F(1):
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if (conf.hfile == NULL)
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break;
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if (f1help(conf) != 0)
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return BSDDIALOG_ERROR;
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/* No break! the terminal size can change */
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case KEY_RESIZE:
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hide_widget(y, x, h, w,conf.shadow);
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/*
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* Unnecessary, but, when the columns decrease the
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* following "refresh" seem not work
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*/
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refresh();
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if (set_widget_size(conf, rows, cols, &h, &w) != 0)
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return BSDDIALOG_ERROR;
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textbox_autosize(conf, rows, cols, &h, &w, hpad, wpad);
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if (textbox_checksize(h, w, hpad, wpad) != 0)
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return BSDDIALOG_ERROR;
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if (set_widget_position(conf, &y, &x, h, w) != 0)
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return BSDDIALOG_ERROR;
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wclear(shadow);
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mvwin(shadow, y + t.shadowrows, x + t.shadowcols);
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wresize(shadow, h, w);
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wclear(widget);
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mvwin(widget, y, x);
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wresize(widget, h, w);
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ys = y + 1;
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xs = x + 1;
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ye = ys + h - 5;
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xe = xs + w - 3;
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ypad = xpad = 0;
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printrows = h - 4;
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if(update_widget_withtextpad(conf, shadow, widget, h, w,
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RAISED, NULL, NULL, NULL, true) != 0)
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return BSDDIALOG_ERROR;
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draw_button(widget, h-2, (w-2)/2 - strlen(exitbutt)/2,
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strlen(exitbutt)+2, exitbutt, true, true);
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wrefresh(widget); /* for button */
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/* Important to fix grey lines expanding screen */
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refresh();
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break;
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}
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}
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end_widget_withtextpad(conf, widget, h, w, pad, shadow);
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return output;
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}
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int bsddialog_tailbox(struct bsddialog_conf conf, char* text, int rows, int cols)
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{
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return (do_textbox(TAILMODE, conf, text, rows, cols));
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}
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int bsddialog_tailboxbg(struct bsddialog_conf conf, char* text, int rows, int cols)
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{
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return (do_textbox(TAILBGMODE, conf, text, rows, cols));
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}
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int bsddialog_textbox(struct bsddialog_conf conf, char* text, int rows, int cols)
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{
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return (do_textbox(TEXTMODE, conf, text, rows, cols));
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}
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