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#include <stdlib.h>
#include <string.h>
#include <alloca.h>
#include "ui.h"
#include "ui_input.h"
struct input *
init_input(unsigned int x, unsigned int y, unsigned int width, char *prompt, size_t input_len, chtype attrs, chtype shadow)
{
struct input *a = calloc(1, sizeof(struct input));
a->x = x;
a->y = y;
a->width = width;
a->cur_pos = 0;
a->input = calloc(input_len+1, sizeof(char));
a->input_max = input_len;
a->input_len = 0;
a->input_pos = 0;
a->prompt = strdup(prompt);
a->attrs = attrs;
a->shadow = shadow;
return (a);
}
void
free_input(struct input *a)
{
if (a->input != NULL) {
free(a->input);
}
free(a->prompt);
free(a);
}
static void
print_wnd(size_t addwidth, struct input *a)
{
int i, x = a->x, y = a->y;
size_t relwidth = addwidth*2, len = strlen(a->prompt) + a->width;
char tmp[len+relwidth+1];
attron(a->attrs);
memset(tmp, ' ', len+relwidth);
tmp[len+relwidth] = '\0';
for (i = -1; i <= 1; i++)
mvprintw(y+i, x-addwidth, tmp);
mvhline(y-2, x-addwidth, 0, len+relwidth);
mvhline(y+2, x-addwidth, 0, len+relwidth);
mvvline(y-1, x-addwidth-1, 0, 3);
mvvline(y-1, x+len+addwidth, 0, 3);
mvaddch(y-2, x-addwidth-1, ACS_ULCORNER);
mvaddch(y+2, x-addwidth-1, ACS_LLCORNER);
mvaddch(y-2, x+len+addwidth, ACS_URCORNER);
mvaddch(y+2, x+len+addwidth, ACS_LRCORNER);
attroff(a->attrs);
attron(a->shadow);
for (i = x-addwidth+1; i < x+len+relwidth; i++)
mvaddch(y+3, i, ACS_CKBOARD);
for (i = -1; i < 3; i++) {
mvaddch(y+i, x+len+relwidth-2, ACS_CKBOARD);
mvaddch(y+i, x+len+relwidth-1, ACS_CKBOARD);
}
attroff(a->shadow);
}
static void
print_input_text(WINDOW *win, struct input *a)
{
size_t start = 0;
size_t p_len = strlen(a->prompt);
char tmp[a->width + 1];
memset(tmp, '\0', a->width + 1);
if (a->input_pos >= a->width) {
start = a->input_pos - a->width;
}
strncpy(tmp, (char *)(a->input + start), a->width);
int i;
for (i = 0; i < strlen(tmp); i++) {
tmp[i] = '*';
}
if (win == NULL) {
mvprintw(a->y, a->x + p_len, "%s", tmp);
} else {
mvwprintw(win, a->y, a->x + p_len, "%s", tmp);
}
}
static void
print_input(WINDOW *win, struct input *a)
{
char *tmp;
int i;
size_t p_len = strlen(a->prompt);
print_wnd(3, a);
attron(a->attrs);
if (win) {
mvwprintw(win, a->y, a->x, a->prompt);
} else {
mvprintw(a->y, a->x, a->prompt);
}
tmp = alloca(a->width+1 * sizeof(char));
for (i = 0; i < a->width; i++) {
*(tmp + i) = '_';
}
tmp[i] = '\0';
if (win) {
mvwprintw(win, a->y, a->x + p_len, tmp);
} else {
mvprintw(a->y, a->x + p_len, tmp);
}
print_input_text(win, a);
attroff(a->attrs);
}
int
activate_input(struct input *a)
{
if (a == NULL) return (UICB_ERR_UNDEF);
curs_set(1);
ui_set_cur(a->x + strlen(a->prompt) + a->cur_pos, a->y);
return (activate_ui_input( (void *) a ));
}
int
deactivate_input(struct input *a)
{
curs_set(0);
return (deactivate_ui_input(a));
}
int
add_input(WINDOW *win, struct input *a, int key)
{
if (a == NULL) return (UICB_ERR_UNDEF);
if (a->input_len >= a->input_max) return (UICB_ERR_BUF);
*(a->input + a->input_pos) = (char) key;
++a->input_pos;
++a->input_len;
a->cur_pos = (a->cur_pos+1 < a->width ? a->cur_pos+1 : a->cur_pos);
ui_set_cur(a->x + strlen(a->prompt) + a->cur_pos, a->y);
return (UICB_OK);
}
int
del_input(WINDOW *win, struct input *a)
{
if (a == NULL) return (UICB_ERR_UNDEF);
if (a->input_len == 0) return (UICB_ERR_BUF);
memmove((a->input + a->input_pos - 1), (a->input + a->input_pos), a->input_max - a->input_pos);
--a->input_len;
*(a->input + a->input_len) = '\0';
if (a->input_pos-1 == a->input_len) {
--a->input_pos;
}
if (a->cur_pos+1 < a->width && a->cur_pos > 0) {
--a->cur_pos;
} else if (a->cur_pos-1 == a->input_pos) {
--a->cur_pos;
}
mvwprintw(win, a->y, a->x + a->cur_pos + strlen(a->prompt), "_");
ui_set_cur(a->x + strlen(a->prompt) + a->cur_pos, a->y);
return (UICB_OK);
}
int
clear_input(WINDOW *win, struct input *a)
{
if (a == NULL) return (UICB_ERR_UNDEF);
memset(a->input, '\0', a->input_max);
a->input_len = 0;
a->input_pos = 0;
a->cur_pos = 0;
ui_set_cur(a->x + strlen(a->prompt) + a->cur_pos, a->y);
return (UICB_OK);
}
static int
input_cb(WINDOW *win, void *data, bool timed_out)
{
struct input *a = (struct input *) data;
if (a == NULL) return (UICB_ERR_UNDEF);
if (win != NULL && is_wintouched(win) == false) return (UICB_OK);
print_input(win, a);
return (UICB_OK);
}
void
register_input(WINDOW *win, struct input *a, uicb_input ipcb)
{
struct ui_callbacks cbs;
cbs.ui_element = input_cb;
cbs.ui_input = ipcb;
register_ui_elt(&cbs, (void *) a, win);
}
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