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;
39 int swap_item(Menu* menu, int src_index, int dest_index);
42 int menu_insert_mode(Menu* menu, int insert_index);
44 /* prob temp for now */
45 MenuItem* create_blank_menuitem(void);
48 int render_item(Menu* menu, int item_index, int start_y);
49 int item_height(MenuItem* menuitem);
50 int items_visible(Menu* menu, int offset);
51 int items_visible_rev(Menu* menu, int offset);
54 create_menuitem(char* title)
56 MenuItem* new_menuitem;
57 TodoItem* new_userdata;
59 new_menuitem = malloc(sizeof(MenuItem));
60 new_menuitem->title = title;
61 new_menuitem->description = strdup(""); //TEMP FOR NOW
63 new_userdata = malloc(sizeof(TodoItem));
64 new_userdata->item_name = title;
65 new_userdata->description = strdup("");
66 new_userdata->due = strdup("");
67 new_userdata->subtask_list = malloc(0);
68 new_userdata->subtask_count = 0;
70 new_menuitem->userdata = new_userdata;
76 create_blank_menuitem(void)
78 return create_menuitem(strdup(""));
82 create_menu(char* menu_name, MenuItem** item_list)
86 new_menu = malloc(sizeof(Menu));
87 new_menu->menu_name = menu_name;
88 new_menu->menu_items = item_list;
89 new_menu->menu_length = array_length(MenuItem*, item_list);
90 new_menu->selected_item = 0;
91 new_menu->scroll_offset = 0;
92 new_menu->focused = false;
93 set_menu_win(new_menu, stdscr);
100 get_menu_win(Menu* menu)
102 return menu->menu_win;
106 get_menu_subwin(Menu* menu)
108 return menu->sub_win;
112 get_menu_item(Menu* menu, int index)
114 if (index < 0 || index >= menu->menu_length) return NULL;
116 return menu->menu_items[index];
120 get_selected_item(Menu* menu)
122 return menu->selected_item;
126 get_menu_length(Menu* menu)
128 return menu->menu_length;
132 get_menu_name(Menu* menu)
134 return menu->menu_name;
138 get_menu_userdata(Menu* menu)
140 return menu->userdata;
144 get_menuitem_title(MenuItem* menuitem)
146 return menuitem->title;
150 get_menuitem_descrip(MenuItem* menuitem)
152 return menuitem->description;
156 get_menuitem_userdata(MenuItem* menuitem)
158 return menuitem->userdata;
164 set_menu_win(Menu* menu, WINDOW* win)
168 menu->menu_win = win;
169 getmaxyx(menu->menu_win, height, width);
171 /* create a subwin (also prob free old subwin?) */
172 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
173 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
174 menu->sub_win = derwin(
186 set_selected_item(Menu* menu, int selected_item)
188 menu->selected_item = selected_item;
193 set_menu_focus(Menu* menu, bool focus)
195 menu->focused = focus;
200 set_menu_userdata(Menu* menu, void* userdata)
202 menu->userdata = userdata;
207 set_menuitem_descrip(MenuItem* menuitem, char* descrip)
209 menuitem->description = descrip;
214 set_menuitem_userdata(MenuItem* menuitem, void* userdata)
216 menuitem->userdata = userdata;
222 swap_item(Menu* menu, int src_index, int dest_index)
224 ar_swap_item((void**)menu->menu_items, src_index, dest_index);
230 delete_item(Menu* menu, int index)
232 if (index < 0 || index > menu->menu_length-1) return -1;
234 for (int i = index; i <= menu->menu_length-1; i++) {
235 menu->menu_items[i] = menu->menu_items[i+1];
238 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
239 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
241 menu->menu_length -= 1;
243 /* also move the current selected position if it's last */
244 if (menu->selected_item > menu->menu_length-1) {
245 menu->selected_item = menu->menu_length-1;
252 insert_item(Menu* menu, MenuItem* menuitem, int index)
253 { // note, this func does not validate index
255 /* resize array and insert */
256 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
258 for (int i = menu->menu_length; i > index; i--) {
259 menu->menu_items[i] = menu->menu_items[i-1];
262 menu->menu_items[index] = menuitem;
263 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
264 menu->menu_length += 1;
266 /* move cursor pos */
267 menu->selected_item = index;
273 menu_insert_mode(Menu* menu, int insert_index)
275 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
281 // account for multiline items
282 insert_pos = menu->scroll_offset;
283 for (int i = 0; i < insert_index; i++) {
284 insert_pos += item_height(menu->menu_items[i]);
287 /* move cursor to right spot */
288 ungetstr(menu->menu_items[insert_index]->title);
289 mvwgetnstr(menu->sub_win,
298 new_contents = strdup(temp);
299 menu->menu_items[insert_index]->title = new_contents;
301 /* delete if empty - maybe move this to a cleanup stage */
302 if (strlen(new_contents) == 0) {
303 delete_item(menu, insert_index);
310 menu_driver(Menu* menu, MenuAction action)
315 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
319 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
323 menu->selected_item = 0;
327 menu->selected_item = menu->menu_length-1;
331 if (menu->selected_item <= 0) break;
332 swap_item(menu, menu->selected_item, menu->selected_item-1);
333 menu->selected_item -= 1;
337 if (menu->selected_item >= menu->menu_length-1) break;
338 swap_item(menu, menu->selected_item, menu->selected_item+1);
339 menu->selected_item += 1;
343 delete_item(menu, menu->selected_item);
347 insert_item(menu, create_blank_menuitem(), menu->menu_length);
348 render_menu(menu); // refresh after inserting
349 menu_insert_mode(menu, menu->selected_item);
352 case MENU_INSERT_ABOVE:
353 insert_item(menu, create_blank_menuitem(), menu->selected_item);
355 menu_insert_mode(menu, menu->selected_item);
358 case MENU_INSERT_BELOW:
359 insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
361 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
365 menu_insert_mode(menu, menu->selected_item);
368 default: // This is here for debug, disable later
369 fprintf(stderr, "Invalid menu action");
376 render_menu(Menu* menu)
378 /* draw outer menu (prob dont need this every render) */
379 /* wclear(menu->menu_win); */
380 wattron(menu->menu_win, COLOR_PAIR(
381 (menu->focused == true) ?
382 TS_MENU_SELECTED: TS_MENU_NONSELECTED
384 mvwprintw(menu->menu_win, 0, MENU_PAD_LEFT, menu->menu_name);
385 wattroff(menu->menu_win, COLOR_PAIR(0));
387 /* draw inner menu */
388 wclear(menu->sub_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)
413 /* getmaxyx(menu->sub_win, y, x); */
414 /* sprintf(abuf, "%d,%d,%d max:%d,%d", menu->selected_item, visible, menu->scroll_offset,y,x); */
415 /* mvprintw(19, 27, abuf); */
418 for (int i = menu->scroll_offset; i < menu->menu_length; i++) {
419 curline += render_item(menu, i, curline);
422 wrefresh(menu->sub_win);
423 wrefresh(menu->menu_win);
429 render_item(Menu* menu, int item_index, int start_y)
432 curitem = menu->menu_items[item_index];
434 /* color selected item */
435 wattron(menu->sub_win, COLOR_PAIR(
436 (item_index == menu->selected_item && menu->focused == true) ?
437 TS_SELECTED : TS_NONSELECTED
439 mvwprintw(menu->sub_win, start_y, 0, curitem->title);
440 wattroff(menu->sub_win, COLOR_PAIR(0));
442 /* display number of items */
443 if (strlen(curitem->description) > 0) {
444 mvwprintw(menu->sub_win, start_y+1, 0, curitem->description);
447 return item_height(curitem);
451 item_height(MenuItem* menuitem)
456 if (strlen(menuitem->description) > 0) {
464 items_visible(Menu* menu, int offset)
467 int maxwidth; // unused
469 getmaxyx(menu->sub_win, maxheight, maxwidth);
473 for (int i = offset ; i < menu->menu_length; i++) {
475 lines += 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->sub_win, maxheight, maxwidth);
494 for (int i = offset; i > 0; i--) {
496 lines += item_height(menu->menu_items[i]);
497 if (lines > maxheight) break;
506 free_menu(Menu* menu)