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;
38 int swap_item(Menu* menu, int src_index, int dest_index);
41 int menu_insert_mode(Menu* menu, int insert_index);
43 /* prob temp for now */
44 MenuItem* create_blank_menuitem(void);
47 int render_item(Menu* menu, int item_index, int start_y);
48 int item_height(MenuItem* menuitem);
49 int items_visible(Menu* menu, int offset);
50 int items_visible_rev(Menu* menu, int offset);
53 create_menuitem(char* title)
55 MenuItem* new_menuitem;
56 TodoItem* new_userdata;
58 new_menuitem = malloc(sizeof(MenuItem));
59 new_menuitem->title = title;
60 new_menuitem->description = strdup(""); //TEMP FOR NOW
62 new_userdata = malloc(sizeof(TodoItem));
63 new_userdata->item_name = title;
64 new_userdata->description = strdup("");
65 new_userdata->due = strdup("");
66 new_userdata->subtask_list = malloc(0);
67 new_userdata->subtask_count = 0;
69 new_menuitem->userdata = new_userdata;
75 create_blank_menuitem(void)
77 return create_menuitem(strdup(""));
81 create_menu(char* menu_name, MenuItem** item_list)
85 new_menu = malloc(sizeof(Menu));
86 new_menu->menu_name = menu_name;
87 new_menu->menu_items = item_list;
88 new_menu->menu_length = array_length(MenuItem*, item_list);
89 new_menu->selected_item = 0;
90 new_menu->scroll_offset = 0;
91 new_menu->focused = false;
92 set_menu_win(new_menu, stdscr);
99 get_menu_win(Menu* menu)
101 return menu->menu_win;
105 get_menu_item(Menu* menu, int index)
107 if (index < 0 || index >= menu->menu_length) return NULL;
109 return menu->menu_items[index];
113 get_selected_item(Menu* menu)
115 return menu->selected_item;
119 get_menu_length(Menu* menu)
121 return menu->menu_length;
125 get_menu_name(Menu* menu)
127 return menu->menu_name;
131 get_menu_userdata(Menu* menu)
133 return menu->userdata;
137 get_menuitem_title(MenuItem* menuitem)
139 return menuitem->title;
143 get_menuitem_descrip(MenuItem* menuitem)
145 return menuitem->description;
149 get_menuitem_userdata(MenuItem* menuitem)
151 return menuitem->userdata;
157 set_menu_win(Menu* menu, WINDOW* win)
161 menu->menu_win = win;
162 getmaxyx(menu->menu_win, height, width);
164 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
165 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
171 set_selected_item(Menu* menu, int selected_item)
173 menu->selected_item = selected_item;
178 set_menu_focus(Menu* menu, bool focus)
180 menu->focused = focus;
185 set_menu_userdata(Menu* menu, void* userdata)
187 menu->userdata = userdata;
192 set_menuitem_descrip(MenuItem* menuitem, char* descrip)
194 menuitem->description = descrip;
199 set_menuitem_userdata(MenuItem* menuitem, void* userdata)
201 menuitem->userdata = userdata;
207 swap_item(Menu* menu, int src_index, int dest_index)
209 ar_swap_item((void**)menu->menu_items, src_index, dest_index);
215 delete_item(Menu* menu, int index)
217 if (index < 0 || index > menu->menu_length-1) return -1;
219 for (int i = index; i <= menu->menu_length-1; i++) {
220 menu->menu_items[i] = menu->menu_items[i+1];
223 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
224 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
226 menu->menu_length -= 1;
228 /* also move the current selected position if it's last */
229 if (menu->selected_item > menu->menu_length-1) {
230 menu->selected_item = menu->menu_length-1;
237 insert_item(Menu* menu, MenuItem* menuitem, int index)
238 { // note, this func does not validate index
240 /* resize array and insert */
241 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
243 for (int i = menu->menu_length; i > index; i--) {
244 menu->menu_items[i] = menu->menu_items[i-1];
247 menu->menu_items[index] = menuitem;
248 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
249 menu->menu_length += 1;
251 /* move cursor pos */
252 menu->selected_item = index;
258 menu_insert_mode(Menu* menu, int insert_index)
260 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
266 // account for multiline items
267 insert_pos = menu->scroll_offset;
268 for (int i = 0; i < insert_index; i++) {
269 insert_pos += item_height(menu->menu_items[i]);
272 /* move cursor to right spot */
273 ungetstr(menu->menu_items[insert_index]->title);
274 mvwgetnstr(menu->menu_win,
283 new_contents = strdup(temp);
284 menu->menu_items[insert_index]->title = new_contents;
286 /* delete if empty - maybe move this to a cleanup stage */
287 if (strlen(new_contents) == 0) {
288 delete_item(menu, insert_index);
295 menu_driver(Menu* menu, MenuAction action)
300 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
304 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
308 menu->selected_item = 0;
312 menu->selected_item = menu->menu_length-1;
316 if (menu->selected_item <= 0) break;
317 swap_item(menu, menu->selected_item, menu->selected_item-1);
318 menu->selected_item -= 1;
322 if (menu->selected_item >= menu->menu_length-1) break;
323 swap_item(menu, menu->selected_item, menu->selected_item+1);
324 menu->selected_item += 1;
328 delete_item(menu, menu->selected_item);
332 insert_item(menu, create_blank_menuitem(), menu->menu_length);
333 render_menu(menu); // refresh after inserting
334 menu_insert_mode(menu, menu->selected_item);
337 case MENU_INSERT_ABOVE:
338 insert_item(menu, create_blank_menuitem(), menu->selected_item);
340 menu_insert_mode(menu, menu->selected_item);
343 case MENU_INSERT_BELOW:
344 insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
346 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
350 menu_insert_mode(menu, menu->selected_item);
353 default: // This is here for debug, disable later
354 fprintf(stderr, "Invalid menu action");
361 render_menu(Menu* menu)
363 wclear(menu->menu_win);
365 /* calculate scroll */
368 visible = items_visible(menu, menu->scroll_offset);
370 if (menu->selected_item >= menu->scroll_offset+visible) {
371 menu->scroll_offset = clamp(
372 menu->selected_item-items_visible_rev(menu, menu->selected_item)+1,
374 floorzero(menu->menu_length-1)
377 } else if (menu->selected_item < menu->scroll_offset) {
378 menu->scroll_offset = clamp(
381 floorzero(menu->menu_length-1)
385 /* render menu items */
387 for (int i = menu->scroll_offset; i < menu->menu_length; i++) {
388 curline += render_item(menu, i, curline);
391 wrefresh(menu->menu_win);
397 render_item(Menu* menu, int item_index, int start_y)
401 curitem = menu->menu_items[item_index];
403 /* color selected item */
404 hlcolor = COLOR_PAIR((item_index == menu->selected_item && menu->focused == true) ? TS_SELECTED : TS_NONSELECTED);
405 wattron(menu->menu_win, hlcolor);
406 mvwprintw(menu->menu_win, start_y, 0, curitem->title);
407 wattroff(menu->menu_win, hlcolor);
409 /* display number of items */
410 if (strlen(curitem->description) > 0) {
411 wattron(menu->menu_win, COLOR_PAIR(TS_ITEMCOUNT));
412 mvwprintw(menu->menu_win, start_y+1, 0, curitem->description);
413 wattroff(menu->menu_win, COLOR_PAIR(TS_ITEMCOUNT));
416 return item_height(curitem);
420 item_height(MenuItem* menuitem)
425 if (strlen(menuitem->description) > 0) {
433 items_visible(Menu* menu, int offset)
436 int maxwidth; // unused
438 getmaxyx(menu->menu_win, maxheight, maxwidth);
442 for (int i = offset ; i < menu->menu_length; i++) {
444 lines += item_height(menu->menu_items[i]);
445 if (lines > maxheight) break;
454 items_visible_rev(Menu* menu, int offset)
457 int maxwidth; // unused
459 getmaxyx(menu->menu_win, maxheight, maxwidth);
463 for (int i = offset; i > 0; i--) {
465 lines += item_height(menu->menu_items[i]);
466 if (lines > maxheight) break;
475 free_menu(Menu* menu)