ref: df162ea4a01ebdc77060c99ef76240f3809df54a
dir: /term_util.c/
#include "base.h"
#include "term_util.h"
void term_util_init_colors() {
if (has_colors()) {
// Enable color
start_color();
use_default_colors();
for (int ifg = 0; ifg < Colors_count; ++ifg) {
for (int ibg = 0; ibg < Colors_count; ++ibg) {
int res = init_pair((short int)(1 + ifg * Colors_count + ibg),
(short int)(ifg - 1), (short int)(ibg - 1));
(void)res;
// Might fail on Linux virtual console/terminal for a couple of colors.
// Just ignore.
#if 0
if (res == ERR) {
endwin();
fprintf(stderr, "Error initializing color pair: %d %d\n", ifg - 1,
ibg - 1);
exit(1);
}
#endif
}
}
}
}
#define ORCA_CONTAINER_OF(ptr, type, member) \
((type*)((char*)(1 ? (ptr) : &((type*)0)->member) - offsetof(type, member)))
Qnav_stack qnav_stack;
static struct { int unused; } qmenu_spacer_user_unique;
void qnav_init() {
qnav_stack.count = 0;
qnav_stack.stack_changed = false;
memset(qnav_stack.blocks, 0, sizeof(qnav_stack.blocks));
}
void qnav_deinit() {
while (qnav_stack.count != 0)
qnav_stack_pop();
}
void qnav_stack_push(Qnav_type_tag tag, int height, int width,
Qnav_block* out) {
#ifndef NDEBUG
for (Usz i = 0; i < qnav_stack.count; ++i) {
assert(qnav_stack.blocks[i] != out);
}
#endif
int left;
if (qnav_stack.count > 0) {
WINDOW* w = qnav_stack.blocks[qnav_stack.count - 1]->outer_window;
left = getbegx(w) + getmaxx(w) + 0;
} else {
left = 0;
}
qnav_stack.blocks[qnav_stack.count] = out;
++qnav_stack.count;
out->title = NULL;
out->outer_window = newwin(height + 2, width + 3, 0, left);
out->content_window = derwin(out->outer_window, height, width, 1, 1);
out->tag = tag;
qnav_stack.stack_changed = true;
}
Qnav_block* qnav_top_block() {
if (qnav_stack.count == 0)
return NULL;
return qnav_stack.blocks[qnav_stack.count - 1];
}
void qnav_free_block(Qnav_block* qb);
void qnav_stack_pop() {
assert(qnav_stack.count > 0);
if (qnav_stack.count == 0)
return;
Qnav_block* qb = qnav_stack.blocks[qnav_stack.count - 1];
WINDOW* content_window = qb->content_window;
WINDOW* outer_window = qb->outer_window;
qnav_free_block(qb);
delwin(content_window);
delwin(outer_window);
--qnav_stack.count;
qnav_stack.blocks[qnav_stack.count] = NULL;
qnav_stack.stack_changed = true;
}
void qnav_draw_box_attr(Qnav_block* qb, unsigned int attr) {
wborder(qb->outer_window, ACS_VLINE | attr, ACS_VLINE | attr,
ACS_HLINE | attr, ACS_HLINE | attr, ACS_ULCORNER | attr,
ACS_URCORNER | attr, ACS_LLCORNER | attr, ACS_LRCORNER | attr);
}
void qnav_draw_box(Qnav_block* qb) { qnav_draw_box_attr(qb, A_DIM); }
void qnav_draw_title(Qnav_block* qb, char const* title, int attr) {
wmove(qb->outer_window, 0, 2);
attr_t attrs = A_NORMAL;
short pair = 0;
wattr_get(qb->outer_window, &attrs, &pair, NULL);
wattrset(qb->outer_window, attr);
wprintw(qb->outer_window, title);
wattr_set(qb->outer_window, attrs, pair, NULL);
}
void qnav_set_title(Qnav_block* qb, char const* title) { qb->title = title; }
void qnav_print_frame(Qnav_block* qb, bool active) {
qnav_draw_box_attr(qb, active ? A_BOLD : A_DIM);
if (qb->title) {
qnav_draw_title(qb, qb->title, active ? A_BOLD : A_DIM);
}
}
WINDOW* qmsg_window(Qmsg* qm) { return qm->nav_block.content_window; }
void qmsg_set_title(Qmsg* qm, char const* title) {
qnav_set_title(&qm->nav_block, title);
}
Qmsg* qmsg_push(int height, int width) {
Qmsg* qm = malloc(sizeof(Qmsg));
qnav_stack_push(Qnav_type_qmsg, height, width, &qm->nav_block);
return qm;
}
bool qmsg_drive(Qmsg* qm, int key) {
(void)qm;
switch (key) {
case ' ':
case 27:
case '\r':
case KEY_ENTER:
return true;
}
return false;
}
Qmsg* qmsg_of(Qnav_block* qb) { return ORCA_CONTAINER_OF(qb, Qmsg, nav_block); }
void qmenu_start(Qmenu* qm) { memset(qm, 0, sizeof(Qmenu)); }
void qmenu_add_choice(Qmenu* qm, char const* text, int id) {
ITEM* item = new_item(text, NULL);
set_item_userptr(item, (void*)(intptr_t)(id));
qm->ncurses_items[qm->items_count] = item;
++qm->items_count;
}
void qmenu_add_spacer(Qmenu* qm) {
ITEM* item = new_item(" ", NULL);
item_opts_off(item, O_SELECTABLE);
set_item_userptr(item, &qmenu_spacer_user_unique);
qm->ncurses_items[qm->items_count] = item;
++qm->items_count;
}
void qmenu_push_to_nav(Qmenu* qm) {
qm->ncurses_menu = new_menu(qm->ncurses_items);
set_menu_mark(qm->ncurses_menu, " > ");
set_menu_grey(qm->ncurses_menu, A_DIM);
int menu_min_h, menu_min_w;
scale_menu(qm->ncurses_menu, &menu_min_h, &menu_min_w);
qnav_stack_push(Qnav_type_qmenu, menu_min_h, menu_min_w, &qm->nav_block);
set_menu_win(qm->ncurses_menu, qm->nav_block.outer_window);
set_menu_sub(qm->ncurses_menu, qm->nav_block.content_window);
post_menu(qm->ncurses_menu);
}
void qmenu_free(Qmenu* qm) {
unpost_menu(qm->ncurses_menu);
free_menu(qm->ncurses_menu);
for (Usz i = 0; i < qm->items_count; ++i) {
free_item(qm->ncurses_items[i]);
}
}
void qnav_free_block(Qnav_block* qb) {
switch (qb->tag) {
case Qnav_type_qmsg: {
Qmsg* qm = qmsg_of(qb);
free(qm);
} break;
case Qnav_type_qmenu: {
Qmenu* qm = qmenu_of(qb);
qmenu_free(qm);
} break;
}
}
bool qmenu_drive(Qmenu* qm, int key, Qmenu_action* out_action) {
switch (key) {
case 27: {
out_action->any.type = Qmenu_action_type_canceled;
return true;
}
case ' ':
case '\r':
case KEY_ENTER: {
ITEM* cur = current_item(qm->ncurses_menu);
out_action->picked.type = Qmenu_action_type_picked;
out_action->picked.id = cur ? (int)(intptr_t)item_userptr(cur) : 0;
return true;
} break;
case KEY_UP: {
ITEM* starting = current_item(qm->ncurses_menu);
menu_driver(qm->ncurses_menu, REQ_UP_ITEM);
for (;;) {
ITEM* cur = current_item(qm->ncurses_menu);
if (!cur || cur == starting)
break;
if (item_userptr(cur) != &qmenu_spacer_user_unique)
break;
menu_driver(qm->ncurses_menu, REQ_UP_ITEM);
}
return false;
}
case KEY_DOWN: {
ITEM* starting = current_item(qm->ncurses_menu);
menu_driver(qm->ncurses_menu, REQ_DOWN_ITEM);
for (;;) {
ITEM* cur = current_item(qm->ncurses_menu);
if (!cur || cur == starting)
break;
if (item_userptr(cur) != &qmenu_spacer_user_unique)
break;
menu_driver(qm->ncurses_menu, REQ_DOWN_ITEM);
}
return false;
}
}
return false;
}
Qmenu* qmenu_of(Qnav_block* qb) {
return ORCA_CONTAINER_OF(qb, Qmenu, nav_block);
}