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#include <curses.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "draw.h"
#include "entry.h"
#include "group.h"
#include "tui_text.h"
// main window-related globals
WINDOW *w_main;
Tui_text *main_text = NULL; // keep track of text location - this array will be in order - top to bottom
// hover-related globals
int hover_index; // current hover (as index for Tui_text, usually main_text)
int hover_count; // number of hovers available
// initialize a window
void draw_data(Group **groups, int g_count, Entry **entries, int e_count, WINDOW *w, int start_x, int start_y);
// move hover to a new Tui_text in window w
void hover_move(WINDOW *w, int new_hover_index);
// handle feedback loop
void feedback_loop();
void tui_init(Group **groups, int g_count, Entry **entries, int e_count) {
int input; // capture user input
// set an interrupt to end cleanly
signal(SIGINT, tui_end);
// init and set options
initscr();
keypad(stdscr, TRUE); // enable arrow keys and other function keys
cbreak(); // set for interactive curses applications
curs_set(0); // hide cursor
// set main window
w_main = newwin(0, 0, 0, 0);
box(w_main, 0, 0);
refresh();
// draw groups and entries
draw_data(groups, g_count, entries, e_count, w_main, 1, 1);
wrefresh(w_main);
// initialize hover
hover_index = 0;
hover_move(w_main, 0);
wrefresh(w_main);
// feedback loop
feedback_loop();
tui_end();
free(*groups);
free(*entries);
}
void tui_end() {
endwin();
}
void draw_data(Group **groups, int g_count, Entry **entries, int e_count, WINDOW *w, int start_x, int start_y) {
int i;
int j;
int mt_index = 0; // separate index to keep track of main_text array
char buf[BUF_LEN];
// initialize main_text
if(main_text != NULL) free(main_text);
main_text = malloc(sizeof(Tui_text) * (e_count + g_count));
// set hover count
hover_count = e_count + g_count;
for(i = 0; i < g_count; ++i) {
// print group
mvwprintw(w, start_y, start_x, "%s", group_get_name(&((*groups)[i])));
// save group in main_text array
tui_text_set_x(&(main_text[mt_index]), start_x);
tui_text_set_y(&(main_text[mt_index]), start_y);
tui_text_set_type(&(main_text[mt_index]), GROUP);
tui_text_set_data(&(main_text[mt_index]), &((*groups)[i]));
++mt_index;
++start_y;
for(j = 0; j < e_count; ++j) {
// check if an entry belongs to the group
if(entry_get_group_id(&((*entries)[j])) == group_get_id(&((*groups)[i]))) {
// print entry
mvwprintw(w, start_y, start_x, " ");
// print date if there is one
if(entry_get_due_date(&((*entries)[j])) != NULL) {
memset(buf, 0, BUF_LEN);
strftime(buf, BUF_LEN, "%a, %m/%d", entry_get_due_date(&((*entries)[j])));
wprintw(w, "%s: ", buf);
}
// print entry title
wprintw(w, "%s", entry_get_title(&((*entries)[j])));
// save entry in main_text array
tui_text_set_x(&(main_text[mt_index]), start_x+2);
tui_text_set_y(&(main_text[mt_index]), start_y);
tui_text_set_type(&(main_text[mt_index]), ENTRY);
tui_text_set_data(&(main_text[mt_index]), &((*entries)[j]));
mt_index++;
++start_y;
}
}
++start_y;
}
}
void hover_move(WINDOW *w, int new_hover_index) {
// avoid going out of bounds
if(new_hover_index < 0) new_hover_index = 0;
if(new_hover_index >= hover_count) new_hover_index = hover_count-1;
// unset previous hover
mvwchgat(w,
tui_text_get_y(&(main_text[hover_index])),
tui_text_get_x(&(main_text[hover_index])),
w->_maxx - tui_text_get_x(&(main_text[hover_index])),
A_NORMAL, 0, NULL);
// set new hover
hover_index = new_hover_index;
mvwchgat(w,
tui_text_get_y(&(main_text[hover_index])),
tui_text_get_x(&(main_text[hover_index])),
w->_maxx - tui_text_get_x(&(main_text[hover_index])),
A_REVERSE, 0, NULL);
}
void feedback_loop() {
int input;
bool finish = false; // turn to true to break out
while(!finish) {
input = getch();
switch(input) {
case 'q':
finish = true;
break;
case KEY_UP:
hover_move(w_main, hover_index-1);
wrefresh(w_main);
break;
case KEY_DOWN:
hover_move(w_main, hover_index+1);
wrefresh(w_main);
break;
}
}
}
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