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-rw-r--r--lib/textbox.c268
1 files changed, 129 insertions, 139 deletions
diff --git a/lib/textbox.c b/lib/textbox.c
index 0c6d53a8cad0..edd58d0a820e 100644
--- a/lib/textbox.c
+++ b/lib/textbox.c
@@ -1,7 +1,7 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
- * Copyright (c) 2021-2022 Alfonso Sabato Siciliano
+ * Copyright (c) 2021-2023 Alfonso Sabato Siciliano
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -25,166 +25,177 @@
* SUCH DAMAGE.
*/
-#include <sys/param.h>
-
#include <curses.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
#include "bsddialog.h"
#include "bsddialog_theme.h"
#include "lib_util.h"
-static void
-updateborders(struct bsddialog_conf *conf, WINDOW *widget, int padmargin,
- int hpad, int wpad, int ypad, int xpad)
+struct scrolltext {
+ WINDOW *pad;
+ int ypad;
+ int xpad;
+ int ys;
+ int ye;
+ int xs;
+ int xe;
+ int hpad;
+ int wpad;
+ int margin; /* 2 with multicolumn char, 0 otherwise */
+ int printrows; /* d.h - BORDERS - HBUTTONS */
+};
+
+static void updateborders(struct dialog *d, struct scrolltext *st)
{
- int h, w;
chtype arrowch, borderch;
- getmaxyx(widget, h, w);
-
- if (conf->no_lines)
+ if (d->conf->no_lines)
borderch = ' ';
- else if (conf->ascii_lines)
+ else if (d->conf->ascii_lines)
borderch = '|';
else
borderch = ACS_VLINE;
- if (xpad > 0) {
- arrowch = conf->ascii_lines ? '<' : ACS_LARROW;
- arrowch |= A_ATTRIBUTES & t.dialog.arrowcolor;
+ if (st->xpad > 0) {
+ arrowch = d->conf->ascii_lines ? '<' : ACS_LARROW;
+ arrowch |= t.dialog.arrowcolor;
} else {
arrowch = borderch;
- arrowch |= A_ATTRIBUTES & t.dialog.lineraisecolor;
+ arrowch |= t.dialog.lineraisecolor;
}
- mvwvline(widget, (h / 2) - 2, 0, arrowch, 4);
+ mvwvline(d->widget, (d->h / 2) - 2, 0, arrowch, 4);
- if (xpad + w-2-padmargin < wpad) {
- arrowch = conf->ascii_lines ? '>' : ACS_RARROW;
- arrowch |= A_ATTRIBUTES & t.dialog.arrowcolor;
+ if (st->xpad + d->w - 2 - st->margin < st->wpad) {
+ arrowch = d->conf->ascii_lines ? '>' : ACS_RARROW;
+ arrowch |= t.dialog.arrowcolor;
} else {
arrowch = borderch;
- arrowch |= A_ATTRIBUTES & t.dialog.linelowercolor;
+ arrowch |= t.dialog.linelowercolor;
}
- mvwvline(widget, (h / 2) - 2, w - 1, arrowch, 4);
+ mvwvline(d->widget, (d->h / 2) - 2, d->w - 1, arrowch, 4);
- if (hpad > h - 4) {
- wattron(widget, t.dialog.arrowcolor);
- mvwprintw(widget, h-3, w-6, "%3d%%", 100 * (ypad+h-4)/ hpad);
- wattroff(widget, t.dialog.arrowcolor);
+ if (st->hpad > d->h - 4) {
+ wattron(d->widget, t.dialog.arrowcolor);
+ mvwprintw(d->widget, d->h - 3, d->w - 6,
+ "%3d%%", 100 * (st->ypad + d->h - 4) / st->hpad);
+ wattroff(d->widget, t.dialog.arrowcolor);
}
}
-static void
-textbox_autosize(struct bsddialog_conf *conf, int rows, int cols, int *h,
- int *w, int hpad, int wpad, int padmargin, struct buttons bs)
+static int textbox_size_position(struct dialog *d, struct scrolltext *st)
{
- if (cols == BSDDIALOG_AUTOSIZE)
- *w = widget_min_width(conf, 0, wpad + padmargin, &bs);
+ int minw;
- if (rows == BSDDIALOG_AUTOSIZE)
- *h = widget_min_height(conf, 0, hpad, true);
+ if (set_widget_size(d->conf, d->rows, d->cols, &d->h, &d->w) != 0)
+ return (BSDDIALOG_ERROR);
+ if (set_widget_autosize(d->conf, d->rows, d->cols, &d->h, &d->w,
+ d->text, NULL, &d->bs, st->hpad, st->wpad + st->margin) != 0)
+ return (BSDDIALOG_ERROR);
+ minw = (st->wpad > 0) ? 2 /*multicolumn char*/ + st->margin : 0 ;
+ if (widget_checksize(d->h, d->w, &d->bs, MIN(st->hpad, 1), minw) != 0)
+ return (BSDDIALOG_ERROR);
+ if (set_widget_position(d->conf, &d->y, &d->x, d->h, d->w) != 0)
+ return (BSDDIALOG_ERROR);
+
+ return (0);
}
-static int
-textbox_checksize(int rows, int cols, int hpad, struct buttons bs)
+static int textbox_draw(struct dialog *d, struct scrolltext *st)
{
- int mincols;
-
- mincols = VBORDERS;
- mincols += buttons_min_width(bs);
-
- if (cols < mincols)
- RETURN_ERROR("Few cols for the textbox");
+ if (d->built) {
+ hide_dialog(d);
+ refresh(); /* Important for decreasing screen */
+ }
+ if (textbox_size_position(d, st) != 0)
+ return (BSDDIALOG_ERROR);
+ if (draw_dialog(d) != 0)
+ return (BSDDIALOG_ERROR);
+ if (d->built)
+ refresh(); /* Important to fix grey lines expanding screen */
- if (rows < 4 /* HBORDERS + button*/ + (hpad > 0 ? 1 : 0))
- RETURN_ERROR("Few rows for the textbox");
+ st->ys = d->y + 1;
+ st->xs = (st->margin == 0) ? d->x + 1 : d->x + 2;
+ st->ye = st->ys + d->h - 5;
+ st->xe = st->xs + d->w - 3 - st->margin;
+ st->ypad = st->xpad = 0;
+ st->printrows = d->h-4;
return (0);
}
/* API */
int
-bsddialog_textbox(struct bsddialog_conf *conf, const char* file, int rows,
+bsddialog_textbox(struct bsddialog_conf *conf, const char *file, int rows,
int cols)
{
- bool loop, has_multi_col;
- int i, retval, y, x, h, w;
- int hpad, wpad, ypad, xpad, ys, ye, xs, xe, padmargin, printrows;
+ bool loop, has_multicol_ch;
+ int i, retval;
unsigned int defaulttablen, linecols;
wint_t input;
char buf[BUFSIZ];
FILE *fp;
- struct buttons bs;
- WINDOW *shadow, *widget, *pad;
+ struct scrolltext st;
+ struct dialog d;
+ if (file == NULL)
+ RETURN_ERROR("*file is NULL");
if ((fp = fopen(file, "r")) == NULL)
- RETURN_ERROR("Cannot open file");
+ RETURN_FMTERROR("Cannot open file \"%s\"", file);
+
+ if (prepare_dialog(conf, "" /* fake */, rows, cols, &d) != 0)
+ return (BSDDIALOG_ERROR);
+ set_buttons(&d, true, "EXIT", NULL);
defaulttablen = TABSIZE;
- set_tabsize((conf->text.tablen == 0) ? TABSIZE : (int)conf->text.tablen);
- hpad = 1;
- wpad = 1;
- pad = newpad(hpad, wpad);
- wbkgd(pad, t.dialog.color);
- padmargin = 0;
+ if (conf->text.tablen > 0)
+ set_tabsize(conf->text.tablen);
+ st.hpad = 1;
+ st.wpad = 1;
+ st.pad = newpad(st.hpad, st.wpad);
+ wbkgd(st.pad, t.dialog.color);
+ st.margin = 0;
i = 0;
while (fgets(buf, BUFSIZ, fp) != NULL) {
- if (str_props(buf, &linecols, &has_multi_col) != 0)
+ if (str_props(buf, &linecols, &has_multicol_ch) != 0)
continue;
- if ((int)linecols > wpad) {
- wpad = linecols;
- wresize(pad, hpad, wpad);
+ if ((int)linecols > st.wpad) {
+ st.wpad = linecols;
+ wresize(st.pad, st.hpad, st.wpad);
}
- if (i > hpad-1) {
- hpad++;
- wresize(pad, hpad, wpad);
+ if (i > st.hpad-1) {
+ st.hpad++;
+ wresize(st.pad, st.hpad, st.wpad);
}
- mvwaddstr(pad, i, 0, buf);
+ mvwaddstr(st.pad, i, 0, buf);
i++;
- if (has_multi_col)
- padmargin = 2;
+ if (has_multicol_ch)
+ st.margin = 2;
}
fclose(fp);
- set_tabsize(defaulttablen);
+ set_tabsize(defaulttablen); /* reset because it is curses global */
- get_buttons(conf, &bs, "EXIT", NULL);
- bs.curr = 0;
- bs.nbuttons = 1;
-
- if (set_widget_size(conf, rows, cols, &h, &w) != 0)
- return (BSDDIALOG_ERROR);
- textbox_autosize(conf, rows, cols, &h, &w, hpad, wpad, padmargin, bs);
- if (textbox_checksize(h, w, hpad, bs) != 0)
- return (BSDDIALOG_ERROR);
- if (set_widget_position(conf, &y, &x, h, w) != 0)
- return (BSDDIALOG_ERROR);
-
- if (new_dialog(conf, &shadow, &widget, y, x, h, w, NULL, NULL, &bs,
- true) != 0)
+ if (textbox_draw(&d, &st) != 0)
return (BSDDIALOG_ERROR);
- ys = y + 1;
- xs = (padmargin == 0) ? x + 1 : x + 2;
- ye = ys + h - 5;
- xe = xs + w - 3 - padmargin;
- ypad = xpad = 0;
- printrows = h-4;
loop = true;
while (loop) {
- updateborders(conf, widget, padmargin, hpad, wpad, ypad, xpad);
+ updateborders(&d, &st);
/*
* Overflow multicolumn charchter right border:
* wnoutrefresh(widget);
* pnoutrefresh(pad, ypad, xpad, ys, xs, ye, xe);
* doupdate();
*/
- wrefresh(widget);
- prefresh(pad, ypad, xpad, ys, xs, ye, xe);
+ wrefresh(d.widget);
+ prefresh(st.pad, st.ypad, st.xpad, st.ys, st.xs, st.ye, st.xe);
if (get_wch(&input) == ERR)
continue;
+ if (shortcut_buttons(input, &d.bs)) {
+ DRAW_BUTTONS(d);
+ doupdate();
+ retval = BUTTONVALUE(d.bs);
+ break; /* loop */
+ }
switch(input) {
case KEY_ENTER:
case 10: /* Enter */
@@ -197,84 +208,63 @@ bsddialog_textbox(struct bsddialog_conf *conf, const char* file, int rows,
loop = false;
}
break;
+ case '\t': /* TAB */
+ d.bs.curr = (d.bs.curr + 1) % d.bs.nbuttons;
+ DRAW_BUTTONS(d);
+ break;
case KEY_HOME:
- ypad = 0;
+ st.ypad = 0;
break;
case KEY_END:
- ypad = hpad - printrows;
- ypad = ypad < 0 ? 0 : ypad;
+ st.ypad = MAX(st.hpad - st.printrows, 0);
break;
case KEY_PPAGE:
- ypad -= printrows;
- ypad = ypad < 0 ? 0 : ypad;
+ st.ypad = MAX(st.ypad - st.printrows, 0);
break;
case KEY_NPAGE:
- ypad += printrows;
- if (ypad + printrows > hpad)
- ypad = hpad - printrows;
+ st.ypad += st.printrows;
+ if (st.ypad + st.printrows > st.hpad)
+ st.ypad = st.hpad - st.printrows;
break;
case '0':
- xpad = 0;
+ st.xpad = 0;
+ break;
case KEY_LEFT:
case 'h':
- xpad = xpad > 0 ? xpad - 1 : 0;
+ st.xpad = MAX(st.xpad - 1, 0);
break;
case KEY_RIGHT:
case 'l':
- xpad = (xpad + w-2-padmargin) < wpad ? xpad + 1 : xpad;
+ if (st.xpad + d.w - 2 - st.margin < st.wpad)
+ st.xpad++;
break;
case KEY_UP:
case 'k':
- ypad = ypad > 0 ? ypad - 1 : 0;
+ st.ypad = MAX(st.ypad - 1, 0);
break;
case KEY_DOWN:
case'j':
- ypad = ypad + printrows <= hpad -1 ? ypad + 1 : ypad;
+ if (st.ypad + st.printrows <= st.hpad -1)
+ st.ypad++;
break;
case KEY_F(1):
if (conf->key.f1_file == NULL &&
conf->key.f1_message == NULL)
break;
- if (f1help(conf) != 0)
- return (BSDDIALOG_ERROR);
- /* No break, screen size can change */
- case KEY_RESIZE:
- /* Important for decreasing screen */
- hide_widget(y, x, h, w, conf->shadow);
- refresh();
-
- if (set_widget_size(conf, rows, cols, &h, &w) != 0)
+ if (f1help_dialog(conf) != 0)
return (BSDDIALOG_ERROR);
- textbox_autosize(conf, rows, cols, &h, &w, hpad, wpad,
- padmargin, bs);
- if (textbox_checksize(h, w, hpad, bs) != 0)
+ if (textbox_draw(&d, &st) != 0)
return (BSDDIALOG_ERROR);
- if (set_widget_position(conf, &y, &x, h, w) != 0)
- return (BSDDIALOG_ERROR);
-
- ys = y + 1;
- xs = (padmargin == 0) ? x + 1 : x + 2;
- ye = ys + h - 5;
- xe = xs + w - 3 - padmargin;
- ypad = xpad = 0;
- printrows = h - 4;
-
- if (update_dialog(conf, shadow, widget, y, x, h, w,
- NULL, NULL, &bs, true) != 0)
+ break;
+ case KEY_RESIZE:
+ if (textbox_draw(&d, &st) != 0)
return (BSDDIALOG_ERROR);
-
- /* Important to fix grey lines expanding screen */
- refresh();
break;
- default:
- if (shortcut_buttons(input, &bs)) {
- retval = bs.value[bs.curr];
- loop = false;
- }
}
}
- end_dialog(conf, shadow, widget, pad);
+ delwin(st.pad);
+ end_dialog(&d);
return (retval);
}
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