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_length(Menu* menu)
126 return menu->menu_length;
130 get_menu_name(Menu* menu)
132 return menu->menu_name;
136 get_menu_userdata(Menu* menu)
138 return menu->userdata;
142 get_menuitem_title(MenuItem* menuitem)
144 return menuitem->title;
148 get_menuitem_descrip(MenuItem* menuitem)
150 return menuitem->description;
154 get_menuitem_userdata(MenuItem* menuitem)
156 return menuitem->userdata;
162 set_menu_win(Menu* menu, WINDOW* win)
166 menu->menu_win = win;
167 getmaxyx(menu->menu_win, height, width);
169 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
170 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
176 set_selected_item(Menu* menu, int selected_item)
178 menu->selected_item = selected_item;
183 set_menu_focus(Menu* menu, bool focus)
185 menu->focused = focus;
190 set_menu_userdata(Menu* menu, void* userdata)
192 menu->userdata = userdata;
197 set_menu_renderitem(Menu* menu, void (*render_item)(Menu*, int, int))
199 menu->render_item = render_item;
204 set_menu_itemheight(Menu* menu, int (*item_height)(MenuItem*))
206 menu->item_height = item_height;
211 set_menuitem_descrip(MenuItem* menuitem, char* descrip)
213 menuitem->description = descrip;
218 set_menuitem_userdata(MenuItem* menuitem, void* userdata)
220 menuitem->userdata = userdata;
226 swap_item(Menu* menu, int src_index, int dest_index)
228 ar_swap_item((void**)menu->menu_items, src_index, dest_index);
234 delete_item(Menu* menu, int index)
236 if (index < 0 || index > menu->menu_length-1) return -1;
238 for (int i = index; i <= menu->menu_length-1; i++) {
239 menu->menu_items[i] = menu->menu_items[i+1];
242 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
243 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
245 menu->menu_length -= 1;
247 /* also move the current selected position if it's last */
248 if (menu->selected_item > menu->menu_length-1) {
249 menu->selected_item = menu->menu_length-1;
256 insert_item(Menu* menu, MenuItem* menuitem, int index)
257 { // note, this func does not validate index
259 /* resize array and insert */
260 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
262 for (int i = menu->menu_length; i > index; i--) {
263 menu->menu_items[i] = menu->menu_items[i-1];
266 menu->menu_items[index] = menuitem;
267 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
268 menu->menu_length += 1;
270 /* move cursor pos */
271 menu->selected_item = index;
277 menu_insert_mode(Menu* menu, int insert_index)
279 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
285 // account for multiline items
286 insert_pos = menu->scroll_offset;
287 for (int i = 0; i < insert_index; i++) {
288 insert_pos += menu->item_height(menu->menu_items[i]);
291 /* move cursor to right spot */
292 ungetstr(menu->menu_items[insert_index]->title);
293 mvwgetnstr(menu->menu_win,
302 new_contents = strdup(temp);
303 menu->menu_items[insert_index]->title = new_contents;
305 /* delete if empty - maybe move this to a cleanup stage */
306 if (strlen(new_contents) == 0) {
307 delete_item(menu, insert_index);
314 menu_driver(Menu* menu, MenuAction action)
319 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
323 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
327 menu->selected_item = 0;
331 menu->selected_item = menu->menu_length-1;
335 if (menu->selected_item <= 0) break;
336 swap_item(menu, menu->selected_item, menu->selected_item-1);
337 menu->selected_item -= 1;
341 if (menu->selected_item >= menu->menu_length-1) break;
342 swap_item(menu, menu->selected_item, menu->selected_item+1);
343 menu->selected_item += 1;
347 delete_item(menu, menu->selected_item);
351 insert_item(menu, create_blank_menuitem(), menu->menu_length);
352 render_menu(menu); // refresh after inserting
353 menu_insert_mode(menu, menu->selected_item);
356 case MENU_INSERT_ABOVE:
357 insert_item(menu, create_blank_menuitem(), menu->selected_item);
359 menu_insert_mode(menu, menu->selected_item);
362 case MENU_INSERT_BELOW:
363 insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
365 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
369 menu_insert_mode(menu, menu->selected_item);
372 default: // This is here for debug, disable later
373 fprintf(stderr, "Invalid menu action");
380 render_menu(Menu* menu)
382 wclear(menu->menu_win);
384 /* calculate scroll */
387 visible = items_visible(menu, menu->scroll_offset);
389 if (menu->selected_item >= menu->scroll_offset+visible) {
390 menu->scroll_offset = clamp(
391 menu->selected_item-items_visible_rev(menu, menu->selected_item)+1,
393 floorzero(menu->menu_length-1)
396 } else if (menu->selected_item < menu->scroll_offset) {
397 menu->scroll_offset = clamp(
400 floorzero(menu->menu_length-1)
404 /* render menu items */
406 for (int i = menu->scroll_offset; i < menu->menu_length; i++) {
407 menu->render_item(menu, i, curline);
408 curline += menu->item_height(menu->menu_items[i]);
411 wrefresh(menu->menu_win);
417 default_render_item(Menu* menu, int item_index, int start_y)
421 curitem = menu->menu_items[item_index];
423 /* color selected item */
424 hlcolor = COLOR_PAIR((item_index == menu->selected_item && menu->focused == true) ? TS_SELECTED : TS_NONSELECTED);
425 wattron(menu->menu_win, hlcolor);
426 mvwprintw(menu->menu_win, start_y, 0, curitem->title);
427 wattroff(menu->menu_win, hlcolor);
432 /* default_render_item(Menu* menu, int item_index, int start_y) */
434 /* MenuItem* curitem; */
436 /* curitem = menu->menu_items[item_index]; */
438 /* /1* color selected item *1/ */
439 /* hlcolor = COLOR_PAIR((item_index == menu->selected_item && menu->focused == true) ? TS_SELECTED : TS_NONSELECTED); */
440 /* wattron(menu->menu_win, hlcolor); */
441 /* mvwprintw(menu->menu_win, start_y, 0, curitem->title); */
442 /* wattroff(menu->menu_win, hlcolor); */
444 /* /1* display number of items *1/ */
445 /* if (strlen(curitem->description) > 0) { */
446 /* wattron(menu->menu_win, COLOR_PAIR(TS_ITEMCOUNT)); */
447 /* mvwprintw(menu->menu_win, start_y+1, 0, curitem->description); */
448 /* wattroff(menu->menu_win, COLOR_PAIR(TS_ITEMCOUNT)); */
451 /* return item_height(curitem); */
455 default_item_height(MenuItem* menuitem)
457 return 1; // maybe account for line wrap by default
461 /* item_height(MenuItem* menuitem) */
466 /* if (strlen(menuitem->description) > 0) { */
474 items_visible(Menu* menu, int offset)
477 int maxwidth; // unused
479 getmaxyx(menu->menu_win, maxheight, maxwidth);
483 for (int i = offset ; i < menu->menu_length; i++) {
485 lines += menu->item_height(menu->menu_items[i]);
486 if (lines > maxheight) break;
495 items_visible_rev(Menu* menu, int offset)
498 int maxwidth; // unused
500 getmaxyx(menu->menu_win, maxheight, maxwidth);
504 for (int i = offset; i > 0; i--) {
506 lines += menu->item_height(menu->menu_items[i]);
507 if (lines > maxheight) break;
516 free_menu(Menu* menu)