43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
#include <stdlib.h>
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#include "ncrswrap.h"
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#include "tree.h"
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int ct_init(struct crs_tree **const tree) {
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/* Initialise NCurses Library & Root Node */
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init_ncurses();
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init_tree(tree);
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return EXIT_SUCCESS;
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}
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void ct_update(struct crs_tree *const tree) {
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struct crs_nodedims * term_dims;
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int term_width, term_height;
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const int key = wgetch(curscr);
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/* ncurses binds a SIGWINCH handler if SIGWINCH has SIG_DFL disposition
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* when initscr(3x) is called. This handler emits KEY_RESIZE (decimal 410) to stdin.
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* REF: manpages -> resizeterm(3x) initscr(3x) wgetch(3x)
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*/
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switch (key) {
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case -1:
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wclear(tree->root->child[0]->win);
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mvwprintw(tree->root->child[0]->win, 0, 0, " \r-1\n");
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wrefresh(tree->root->child[0]->win);
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return;
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case KEY_RESIZE:
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termsize(term_width, term_height);
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term_dims = __alloc_dims(0, 0, term_width, term_height);
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resize_tree(tree, term_dims);
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// flush ncurses virtual screen -> physical screen
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doupdate();
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break;
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default:
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wclear(tree->root->child[0]->win);
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mvwprintw(tree->root->child[0]->win, 0, 0, " \r%d\n", key);
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wrefresh(tree->root->child[0]->win);
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break;
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}
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}
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