/* Draws error message on the screen or redraws the last message when both
* title_arg and message_arg are NULL. */
static void
redraw_error_msg(const char title_arg[], const char message_arg[],
int prompt_skip)
{
/* TODO: refactor this function redraw_error_msg() */
static const char *title;
static const char *message;
static int ctrl_c;
int sx, sy;
int x, y;
int z;
const char *text;
if(title_arg != NULL && message_arg != NULL)
{
title = title_arg;
message = message_arg;
ctrl_c = prompt_skip;
}
assert(message != NULL);
curs_set(FALSE);
werase(error_win);
getmaxyx(stdscr, sy, sx);
y = sy - 3 + !cfg.last_status;
x = sx - 2;
wresize(error_win, y, x);
z = strlen(message);
if(z <= x - 2 && strchr(message, '\n') == NULL)
{
y = 6;
wresize(error_win, y, x);
mvwin(error_win, (sy - y)/2, (sx - x)/2);
checked_wmove(error_win, 2, (x - z)/2);
wprint(error_win, message);
}
else
{
int i;
int cy = 2;
i = 0;
while(i < z)
{
int j;
char buf[x - 2 + 1];
snprintf(buf, sizeof(buf), "%s", message + i);
for(j = 0; buf[j] != '\0'; j++)
if(buf[j] == '\n')
break;
if(buf[j] != '\0')
i++;
buf[j] = '\0';
i += j;
if(buf[0] == '\0')
continue;
y = cy + 4;
mvwin(error_win, (sy - y)/2, (sx - x)/2);
wresize(error_win, y, x);
checked_wmove(error_win, cy++, 1);
wprint(error_win, buf);
}
}
box(error_win, 0, 0);
if(title[0] != '\0')
mvwprintw(error_win, 0, (x - strlen(title) - 2)/2, " %s ", title);
if(curr_stats.errmsg_shown == 1)
{
if(ctrl_c)
{
text = "Press Return to continue or Ctrl-C to skip other error messages";
}
else
{
text = "Press Return to continue";
}
}
else
{
text = "Enter [y]es or [n]o";
}
mvwaddstr(error_win, y - 2, (x - strlen(text))/2, text);
}
void
draw_menu(menu_info *m)
{
int i;
int win_len;
int x, y;
getmaxyx(menu_win, y, x);
win_len = x;
werase(menu_win);
normalize_top(m);
x = m->top;
box(menu_win, 0, 0);
wattron(menu_win, A_BOLD);
checked_wmove(menu_win, 0, 3);
wprint(menu_win, m->title);
wattroff(menu_win, A_BOLD);
for(i = 1; x < m->len; i++, x++)
{
int z, off;
char *buf;
char *ptr = NULL;
col_attr_t col;
int type = WIN_COLOR;
chomp(m->items[x]);
if((ptr = strchr(m->items[x], '\n')) || (ptr = strchr(m->items[x], '\r')))
*ptr = '\0';
col = cfg.cs.color[WIN_COLOR];
if(cfg.hl_search && m->matches != NULL && m->matches[x])
{
mix_colors(&col, &cfg.cs.color[SELECTED_COLOR]);
type = SELECTED_COLOR;
}
init_pair(DCOLOR_BASE + type, col.fg, col.bg);
wattron(menu_win, COLOR_PAIR(DCOLOR_BASE + type) | col.attr);
z = m->hor_pos;
off = 0;
while(z-- > 0 && m->items[x][off] != '\0')
{
size_t l = get_char_width(m->items[x] + off);
off += l;
}
buf = strdup(m->items[x] + off);
for(z = 0; buf[z] != '\0'; z++)
if(buf[z] == '\t')
buf[z] = ' ';
checked_wmove(menu_win, i, 2);
if(get_screen_string_length(buf) > win_len - 4)
{
size_t len = get_normal_utf8_string_widthn(buf, win_len - 3 - 4);
memset(buf + len, ' ', strlen(buf) - len);
buf[len + 3] = '\0';
wprint(menu_win, buf);
mvwaddstr(menu_win, i, win_len - 5, "...");
}
else
{
const size_t len = get_normal_utf8_string_widthn(buf, win_len - 4);
buf[len] = '\0';
wprint(menu_win, buf);
}
waddstr(menu_win, " ");
free(buf);
wattroff(menu_win, COLOR_PAIR(DCOLOR_BASE + type) | col.attr);
if(i + 3 > y)
break;
}
}
void
clean_menu_position(menu_info *m)
{
int x, z;
int off = 0;
char * buf = (char *)NULL;
col_attr_t col;
int type = MENU_COLOR;
x = getmaxx(menu_win) + get_utf8_overhead(m->items[m->pos]);
buf = malloc(x + 2);
/* TODO: check if this can ever be false. */
if(m->items[m->pos] != NULL)
{
z = m->hor_pos;
while(z-- > 0 && m->items[m->pos][off] != '\0')
{
size_t l = get_char_width(m->items[m->pos] + off);
off += l;
x -= l - 1;
}
snprintf(buf, x, " %s", m->items[m->pos] + off);
}
else
{
buf[0] = '\0';
}
for(z = 0; buf[z] != '\0'; z++)
if(buf[z] == '\t')
buf[z] = ' ';
for(z = strlen(buf); z < x; z++)
buf[z] = ' ';
buf[x] = ' ';
buf[x + 1] = '\0';
col = cfg.cs.color[WIN_COLOR];
if(cfg.hl_search && m->matches != NULL && m->matches[m->pos])
{
mix_colors(&col, &cfg.cs.color[SELECTED_COLOR]);
type = SELECTED_COLOR;
}
init_pair(DCOLOR_BASE + type, col.fg, col.bg);
wattrset(menu_win, COLOR_PAIR(type + DCOLOR_BASE) | col.attr);
checked_wmove(menu_win, m->current, 1);
if(get_screen_string_length(m->items[m->pos] + off) > getmaxx(menu_win) - 4)
{
size_t len = get_normal_utf8_string_widthn(buf,
getmaxx(menu_win) - 3 - 4 + 1);
memset(buf + len, ' ', strlen(buf) - len);
buf[len + 3] = '\0';
wprint(menu_win, buf);
mvwaddstr(menu_win, m->current, getmaxx(menu_win) - 5, "...");
}
else
{
size_t len = get_normal_utf8_string_widthn(buf, getmaxx(menu_win) - 4 + 1);
buf[len] = '\0';
wprint(menu_win, buf);
}
waddstr(menu_win, " ");
wattroff(menu_win, COLOR_PAIR(type + DCOLOR_BASE) | col.attr);
free(buf);
}
void
move_to_menu_pos(int pos, menu_info *m)
{
/* TODO: refactor this function move_to_menu_pos() */
int redraw = 0;
int x, z;
char *buf = NULL;
col_attr_t col;
int off = 0;
pos = MIN(m->len - 1, MAX(0, pos));
if(pos < 0)
return;
normalize_top(m);
if(pos > get_last_visible_line(m))
{
m->top = pos - (m->win_rows - 2 - 1);
redraw = 1;
}
else if(pos < m->top)
{
m->top = pos;
redraw = 1;
}
if(cfg.scroll_off > 0)
{
int s = MIN(DIV_ROUND_UP(m->win_rows - 2, 2), cfg.scroll_off);
if(pos - m->top < s && m->top > 0)
{
m->top -= s - (pos - m->top);
normalize_top(m);
redraw = 1;
}
if(pos > get_last_visible_line(m) - s)
{
m->top += s - (get_last_visible_line(m) - pos);
normalize_top(m);
redraw = 1;
}
}
m->current = 1 + (pos - m->top);
if(redraw)
draw_menu(m);
x = getmaxx(menu_win) + get_utf8_overhead(m->items[pos]);
buf = malloc(x + 2);
if(buf == NULL)
return;
/* TODO: check if this can be false. */
if(m->items[pos] != NULL)
{
z = m->hor_pos;
while(z-- > 0 && m->items[pos][off] != '\0')
{
size_t l = get_char_width(m->items[pos] + off);
off += l;
x -= l - 1;
}
snprintf(buf, x, " %s", m->items[pos] + off);
}
else
{
buf[0] = '\0';
}
for(z = 0; buf[z] != '\0'; z++)
if(buf[z] == '\t')
buf[z] = ' ';
for(z = strlen(buf); z < x; z++)
buf[z] = ' ';
buf[x] = ' ';
buf[x + 1] = '\0';
col = cfg.cs.color[WIN_COLOR];
if(cfg.hl_search && m->matches != NULL && m->matches[pos])
mix_colors(&col, &cfg.cs.color[SELECTED_COLOR]);
mix_colors(&col, &cfg.cs.color[CURR_LINE_COLOR]);
init_pair(DCOLOR_BASE + MENU_CURRENT_COLOR, col.fg, col.bg);
wattrset(menu_win, COLOR_PAIR(DCOLOR_BASE + MENU_CURRENT_COLOR) | col.attr);
checked_wmove(menu_win, m->current, 1);
if(get_screen_string_length(m->items[pos] + off) > getmaxx(menu_win) - 4)
{
size_t len = get_normal_utf8_string_widthn(buf,
getmaxx(menu_win) - 3 - 4 + 1);
memset(buf + len, ' ', strlen(buf) - len);
buf[len + 3] = '\0';
wprint(menu_win, buf);
mvwaddstr(menu_win, m->current, getmaxx(menu_win) - 5, "...");
}
else
{
size_t len = get_normal_utf8_string_widthn(buf, getmaxx(menu_win) - 4 + 1);
buf[len] = '\0';
wprint(menu_win, buf);
}
waddstr(menu_win, " ");
wattroff(menu_win, COLOR_PAIR(DCOLOR_BASE + MENU_CURRENT_COLOR) | col.attr);
m->pos = pos;
free(buf);
show_position_in_menu(m);
}
/* Draws possibly centered formatted message with specified title and control
* message on error_win. */
static void
draw_msg(const char title[], const char msg[], const char ctrl_msg[],
int centered, int recommended_width)
{
enum { margin = 1 };
int sw, sh;
int w, h;
int max_h;
int len;
size_t ctrl_msg_n;
size_t wctrl_msg;
size_t i;
int first_line_x = 1;
const int first_line_y = 2;
curs_set(0);
getmaxyx(stdscr, sh, sw);
ctrl_msg_n = MAX(measure_sub_lines(ctrl_msg, &wctrl_msg), 1U);
max_h = sh - 2 - ctrl_msg_n + !cfg.display_statusline;
h = max_h;
/* The outermost condition is for VLA below (to calm static analyzers). */
w = MAX(2 + 2*margin, MIN(sw - 2,
MAX(MAX(recommended_width, sw/3),
(int)MAX(wctrl_msg, determine_width(msg)) + 4)));
wresize(error_win, h, w);
werase(error_win);
len = strlen(msg);
if(len <= w - 2 && strchr(msg, '\n') == NULL)
{
first_line_x = (w - len)/2;
h = 5 + ctrl_msg_n;
wresize(error_win, h, w);
mvwin(error_win, (sh - h)/2, (sw - w)/2);
checked_wmove(error_win, first_line_y, first_line_x);
wprint(error_win, msg);
}
else
{
int i = 0;
int cy = first_line_y;
while(i < len)
{
int j;
char buf[w - 2 - 2*margin + 1];
int cx;
copy_str(buf, sizeof(buf), msg + i);
for(j = 0; buf[j] != '\0'; j++)
if(buf[j] == '\n')
break;
if(buf[j] != '\0')
i++;
buf[j] = '\0';
i += j;
if(buf[0] == '\0')
continue;
if(cy >= max_h - (int)ctrl_msg_n - 3)
{
/* Skip trailing part of the message if it's too long, just print how
* many lines we're omitting. */
size_t max_len;
const int more_lines = 1U + measure_sub_lines(msg + i, &max_len);
snprintf(buf, sizeof(buf), "<<%d more line%s not shown>>", more_lines,
(more_lines == 1) ? "" : "s");
/* Make sure this is the last iteration of the loop. */
i = len;
}
h = 1 + cy + 1 + ctrl_msg_n + 1;
wresize(error_win, h, w);
mvwin(error_win, (sh - h)/2, (sw - w)/2);
cx = centered ? (w - utf8_strsw(buf))/2 : (1 + margin);
if(cy == first_line_y)
{
first_line_x = cx;
}
checked_wmove(error_win, cy++, cx);
wprint(error_win, buf);
}
}
box(error_win, 0, 0);
if(title[0] != '\0')
{
mvwprintw(error_win, 0, (w - strlen(title) - 2)/2, " %s ", title);
}
/* Print control message line by line. */
for(i = ctrl_msg_n; i > 0U; --i)
{
const size_t len = strcspn(ctrl_msg, "\n");
mvwaddnstr(error_win, h - i - 1, MAX(0, (w - (int)len)/2), ctrl_msg, len);
ctrl_msg = skip_char(ctrl_msg + len + 1U, '/');
}
checked_wmove(error_win, first_line_y, first_line_x);
}
