8 #include "headers/menu.h"
9 #include "headers/render.h"
10 #include "headers/utils.h"
12 #define MENU_PAD_TOP 2
13 #define MENU_PAD_BOTTOM 2
14 #define MENU_PAD_LEFT 2
15 #define MENU_PAD_RIGHT 1
17 #define MAX_CONTENTS_LENGTH 256
19 typedef struct MenuItem {
27 MenuItem** menu_items;
36 void (*render_item)(Menu*, int, int);
37 int (*item_height)(MenuItem*);
40 int swap_item(Menu* menu, int src_index, int dest_index);
43 int menu_insert_mode(Menu* menu, int insert_index);
45 /* prob temp for now */
46 MenuItem* create_blank_menuitem(void);
49 void default_render_item(Menu* menu, int item_index, int start_y);
50 int default_item_height(MenuItem* menuitem);
51 int items_visible(Menu* menu, int offset);
52 int items_visible_rev(Menu* menu, int offset);
55 create_menuitem(char* title)
57 MenuItem* new_menuitem;
58 TodoItem* new_userdata;
60 new_menuitem = malloc(sizeof(MenuItem));
61 new_menuitem->title = title;
62 new_menuitem->description = strdup(""); //TEMP FOR NOW
64 new_userdata = malloc(sizeof(TodoItem));
65 new_userdata->item_name = title;
66 new_userdata->description = strdup("");
67 new_userdata->due = strdup("");
68 new_userdata->subtask_list = malloc(0);
69 new_userdata->subtask_count = 0;
71 new_menuitem->userdata = new_userdata;
77 create_blank_menuitem(void)
79 return create_menuitem(strdup(""));
83 create_menu(char* menu_name, MenuItem** item_list)
87 new_menu = malloc(sizeof(Menu));
88 new_menu->menu_name = menu_name;
89 new_menu->menu_items = item_list;
90 new_menu->menu_length = array_length(MenuItem*, item_list);
91 new_menu->selected_item = 0;
92 new_menu->scroll_offset = 0;
93 new_menu->focused = false;
94 new_menu->userdata = NULL;
95 new_menu->render_item = *default_render_item;
96 new_menu->item_height = *default_item_height;
97 set_menu_win(new_menu, stdscr);
104 get_menu_win(Menu* menu)
106 return menu->menu_win;
110 get_menu_item(Menu* menu, int index)
112 if (index < 0 || index >= menu->menu_length) return NULL;
114 return menu->menu_items[index];
118 get_selected_item(Menu* menu)
120 return menu->selected_item;
124 get_menu_focused(Menu* menu)
126 return menu->focused;
130 get_menu_length(Menu* menu)
132 return menu->menu_length;
136 get_menu_name(Menu* menu)
138 return menu->menu_name;
142 get_menu_userdata(Menu* menu)
144 return menu->userdata;
148 get_menuitem_title(MenuItem* menuitem)
150 return menuitem->title;
154 get_menuitem_descrip(MenuItem* menuitem)
156 return menuitem->description;
160 get_menuitem_userdata(MenuItem* menuitem)
162 return menuitem->userdata;
168 set_menu_win(Menu* menu, WINDOW* win)
172 menu->menu_win = win;
173 getmaxyx(menu->menu_win, height, width);
175 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
176 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
182 set_selected_item(Menu* menu, int selected_item)
184 menu->selected_item = selected_item;
189 set_menu_focus(Menu* menu, bool focus)
191 menu->focused = focus;
196 set_menu_userdata(Menu* menu, void* userdata)
198 menu->userdata = userdata;
203 set_menu_renderitem(Menu* menu, void (*render_item)(Menu*, int, int))
205 menu->render_item = render_item;
210 set_menu_itemheight(Menu* menu, int (*item_height)(MenuItem*))
212 menu->item_height = item_height;
217 set_menuitem_descrip(MenuItem* menuitem, char* descrip)
219 menuitem->description = descrip;
224 set_menuitem_userdata(MenuItem* menuitem, void* userdata)
226 menuitem->userdata = userdata;
232 swap_item(Menu* menu, int src_index, int dest_index)
234 ar_swap_item((void**)menu->menu_items, src_index, dest_index);
240 delete_item(Menu* menu, int index)
242 if (index < 0 || index > menu->menu_length-1) return -1;
244 for (int i = index; i <= menu->menu_length-1; i++) {
245 menu->menu_items[i] = menu->menu_items[i+1];
248 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
249 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
251 menu->menu_length -= 1;
253 /* also move the current selected position if it's last */
254 if (menu->selected_item > menu->menu_length-1) {
255 menu->selected_item = menu->menu_length-1;
262 insert_item(Menu* menu, MenuItem* menuitem, int index)
263 { // note, this func does not validate index
265 /* resize array and insert */
266 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
268 for (int i = menu->menu_length; i > index; i--) {
269 menu->menu_items[i] = menu->menu_items[i-1];
272 menu->menu_items[index] = menuitem;
273 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
274 menu->menu_length += 1;
276 /* move cursor pos */
277 menu->selected_item = index;
283 menu_insert_mode(Menu* menu, int insert_index)
285 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
291 // account for multiline items
292 insert_pos = menu->scroll_offset;
293 for (int i = 0; i < insert_index; i++) {
294 insert_pos += menu->item_height(menu->menu_items[i]);
297 /* move cursor to right spot */
298 ungetstr(menu->menu_items[insert_index]->title);
299 mvwgetnstr(menu->menu_win,
308 new_contents = strdup(temp);
309 menu->menu_items[insert_index]->title = new_contents;
311 /* delete if empty - maybe move this to a cleanup stage */
312 if (strlen(new_contents) == 0) {
313 delete_item(menu, insert_index);
320 menu_driver(Menu* menu, MenuAction action)
325 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
329 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
333 menu->selected_item = 0;
337 menu->selected_item = menu->menu_length-1;
341 if (menu->selected_item <= 0) break;
342 swap_item(menu, menu->selected_item, menu->selected_item-1);
343 menu->selected_item -= 1;
347 if (menu->selected_item >= menu->menu_length-1) break;
348 swap_item(menu, menu->selected_item, menu->selected_item+1);
349 menu->selected_item += 1;
353 delete_item(menu, menu->selected_item);
357 insert_item(menu, create_blank_menuitem(), menu->menu_length);
358 render_menu(menu); // refresh after inserting
359 menu_insert_mode(menu, menu->selected_item);
362 case MENU_INSERT_ABOVE:
363 insert_item(menu, create_blank_menuitem(), menu->selected_item);
365 menu_insert_mode(menu, menu->selected_item);
368 case MENU_INSERT_BELOW:
369 insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
371 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
375 menu_insert_mode(menu, menu->selected_item);
378 default: // This is here for debug, disable later
379 fprintf(stderr, "Invalid menu action");
386 render_menu(Menu* menu)
388 wclear(menu->menu_win);
390 /* calculate scroll */
393 visible = items_visible(menu, menu->scroll_offset);
395 if (menu->selected_item >= menu->scroll_offset+visible) {
396 menu->scroll_offset = clamp(
397 menu->selected_item-items_visible_rev(menu, menu->selected_item)+1,
399 floorzero(menu->menu_length-1)
402 } else if (menu->selected_item < menu->scroll_offset) {
403 menu->scroll_offset = clamp(
406 floorzero(menu->menu_length-1)
410 /* render menu items */
412 for (int i = menu->scroll_offset; i < menu->menu_length; i++) {
413 menu->render_item(menu, i, curline);
414 curline += menu->item_height(menu->menu_items[i]);
417 wrefresh(menu->menu_win);
423 default_render_item(Menu* menu, int item_index, int start_y)
428 curitem = menu->menu_items[item_index];
430 /* color selected item */
431 hlcolor = COLOR_PAIR((item_index == menu->selected_item && menu->focused == true) ? TS_SELECTED : TS_NONSELECTED);
432 wattron(menu->menu_win, hlcolor);
433 mvwprintw(menu->menu_win, start_y, 0, curitem->title);
434 wattroff(menu->menu_win, hlcolor);
439 default_item_height(MenuItem* menuitem)
441 return 1; // maybe account for line wrap by default
445 items_visible(Menu* menu, int offset)
448 int maxwidth; // unused
450 getmaxyx(menu->menu_win, maxheight, maxwidth);
454 for (int i = offset ; i < menu->menu_length; i++) {
456 lines += menu->item_height(menu->menu_items[i]);
457 if (lines > maxheight) break;
466 items_visible_rev(Menu* menu, int offset)
469 int maxwidth; // unused
471 getmaxyx(menu->menu_win, maxheight, maxwidth);
475 for (int i = offset; i > 0; i--) {
477 lines += menu->item_height(menu->menu_items[i]);
478 if (lines > maxheight) break;
487 free_menu(Menu* menu)