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_menu_itemlist(Menu* menu)
120 return menu->menu_items;
124 get_selected_item(Menu* menu)
126 return menu->selected_item;
130 get_selected_menuitem(Menu* menu)
132 return get_menu_item(menu, get_selected_item(menu));
136 get_menu_focused(Menu* menu)
138 return menu->focused;
142 get_menu_length(Menu* menu)
144 return menu->menu_length;
148 get_menu_name(Menu* menu)
150 return menu->menu_name;
154 get_menu_userdata(Menu* menu)
156 return menu->userdata;
160 get_menuitem_title(MenuItem* menuitem)
162 return menuitem->title;
166 get_menuitem_descrip(MenuItem* menuitem)
168 return menuitem->description;
172 get_menuitem_userdata(MenuItem* menuitem)
174 return menuitem->userdata;
180 set_menu_win(Menu* menu, WINDOW* win)
184 menu->menu_win = win;
185 getmaxyx(menu->menu_win, height, width);
187 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
188 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
194 set_selected_item(Menu* menu, int selected_item)
196 menu->selected_item = selected_item;
201 set_menu_focus(Menu* menu, bool focus)
203 menu->focused = focus;
208 set_menu_userdata(Menu* menu, void* userdata)
210 menu->userdata = userdata;
215 set_menu_renderitem(Menu* menu, void (*render_item)(Menu*, int, int))
217 menu->render_item = render_item;
222 set_menu_itemheight(Menu* menu, int (*item_height)(MenuItem*))
224 menu->item_height = item_height;
229 set_menuitem_title(MenuItem* menuitem, char* title)
231 menuitem->title = title;
236 set_menuitem_descrip(MenuItem* menuitem, char* descrip)
238 menuitem->description = descrip;
243 set_menuitem_userdata(MenuItem* menuitem, void* userdata)
245 menuitem->userdata = userdata;
251 swap_item(Menu* menu, int src_index, int dest_index)
253 ar_swap_item((void**)menu->menu_items, src_index, dest_index);
259 delete_item(Menu* menu, int index)
261 if (index < 0 || index > menu->menu_length-1) return -1;
263 for (int i = index; i <= menu->menu_length-1; i++) {
264 menu->menu_items[i] = menu->menu_items[i+1];
267 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
268 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
270 menu->menu_length -= 1;
272 /* also move the current selected position if it's last */
273 if (menu->selected_item > menu->menu_length-1) {
274 menu->selected_item = menu->menu_length-1;
281 insert_item(Menu* menu, MenuItem* menuitem, int index)
282 { // note, this func does not validate index
284 /* resize array and insert */
285 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
287 for (int i = menu->menu_length; i > index; i--) {
288 menu->menu_items[i] = menu->menu_items[i-1];
291 menu->menu_items[index] = menuitem;
292 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
293 menu->menu_length += 1;
295 /* move cursor pos */
296 menu->selected_item = index;
302 menu_insert_mode(Menu* menu, int insert_index)
304 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
310 // account for multiline items
311 insert_pos = menu->scroll_offset;
312 for (int i = 0; i < insert_index; i++) {
313 insert_pos += menu->item_height(menu->menu_items[i]);
316 /* move cursor to right spot */
317 ungetstr(menu->menu_items[insert_index]->title);
318 mvwgetnstr(menu->menu_win,
327 new_contents = strdup(temp);
328 menu->menu_items[insert_index]->title = new_contents;
330 /* delete if empty - maybe move this to a cleanup stage */
331 if (strlen(new_contents) == 0) {
332 delete_item(menu, insert_index);
339 menu_driver(Menu* menu, MenuAction action)
344 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
348 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
352 menu->selected_item = 0;
356 menu->selected_item = menu->menu_length-1;
360 if (menu->selected_item <= 0) break;
361 swap_item(menu, menu->selected_item, menu->selected_item-1);
362 menu->selected_item -= 1;
366 if (menu->selected_item >= menu->menu_length-1) break;
367 swap_item(menu, menu->selected_item, menu->selected_item+1);
368 menu->selected_item += 1;
372 delete_item(menu, menu->selected_item);
376 insert_item(menu, create_blank_menuitem(), menu->menu_length);
377 render_menu(menu); // refresh after inserting
378 menu_insert_mode(menu, menu->selected_item);
381 case MENU_INSERT_ABOVE:
382 insert_item(menu, create_blank_menuitem(), menu->selected_item);
384 menu_insert_mode(menu, menu->selected_item);
387 case MENU_INSERT_BELOW:
388 insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
390 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
394 menu_insert_mode(menu, menu->selected_item);
397 default: // This is here for debug, disable later
398 fprintf(stderr, "Invalid menu action");
405 render_menu(Menu* menu)
407 wclear(menu->menu_win);
409 /* calculate scroll */
412 visible = items_visible(menu, menu->scroll_offset);
414 if (menu->selected_item >= menu->scroll_offset+visible) {
415 menu->scroll_offset = clamp(
416 menu->selected_item-items_visible_rev(menu, menu->selected_item)+1,
418 floorzero(menu->menu_length-1)
421 } else if (menu->selected_item < menu->scroll_offset) {
422 menu->scroll_offset = clamp(
425 floorzero(menu->menu_length-1)
429 /* render menu items */
431 for (int i = menu->scroll_offset; i < menu->menu_length; i++) {
432 menu->render_item(menu, i, curline);
433 curline += menu->item_height(menu->menu_items[i]);
436 wrefresh(menu->menu_win);
442 default_render_item(Menu* menu, int item_index, int start_y)
447 curitem = menu->menu_items[item_index];
449 /* color selected item */
450 hlcolor = COLOR_PAIR((item_index == menu->selected_item && menu->focused == true) ? TS_SELECTED : TS_NONSELECTED);
451 wattron(menu->menu_win, hlcolor);
452 mvwprintw(menu->menu_win, start_y, 0, curitem->title);
453 wattroff(menu->menu_win, hlcolor);
458 default_item_height(MenuItem* menuitem)
460 return 1; // maybe account for line wrap by default
464 items_visible(Menu* menu, int offset)
467 int maxwidth; // unused
469 getmaxyx(menu->menu_win, maxheight, maxwidth);
473 for (int i = offset ; i < menu->menu_length; i++) {
475 lines += menu->item_height(menu->menu_items[i]);
476 if (lines > maxheight) break;
485 items_visible_rev(Menu* menu, int offset)
488 int maxwidth; // unused
490 getmaxyx(menu->menu_win, maxheight, maxwidth);
494 for (int i = offset; i > 0; i--) {
496 lines += menu->item_height(menu->menu_items[i]);
497 if (lines > maxheight) break;
506 free_menu(Menu* menu)