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 1
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);
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_subwin(Menu* menu)
107 return menu->sub_win;
111 get_menu_item(Menu* menu, int index)
113 if (index < 0 || index >= menu->menu_length) return NULL;
115 return menu->menu_items[index];
119 get_selected_item(Menu* menu)
121 return menu->selected_item;
125 get_menu_length(Menu* menu)
127 return menu->menu_length;
131 get_menu_name(Menu* menu)
133 return menu->menu_name;
137 get_menu_userdata(Menu* menu)
139 return menu->userdata;
143 get_menuitem_title(MenuItem* menuitem)
145 return menuitem->title;
149 get_menuitem_descrip(MenuItem* menuitem)
151 return menuitem->description;
155 get_menuitem_userdata(MenuItem* menuitem)
157 return menuitem->userdata;
163 set_menu_win(Menu* menu, WINDOW* win)
167 menu->menu_win = win;
168 getmaxyx(menu->menu_win, height, width);
170 /* create a subwin (also prob free old subwin?) */
171 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
172 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
173 menu->sub_win = derwin(
185 set_selected_item(Menu* menu, int selected_item)
187 menu->selected_item = selected_item;
192 set_menu_focus(Menu* menu, bool focus)
194 menu->focused = focus;
199 set_menu_userdata(Menu* menu, void* userdata)
201 menu->userdata = userdata;
206 set_menuitem_descrip(MenuItem* menuitem, char* descrip)
208 menuitem->description = descrip;
213 set_menuitem_userdata(MenuItem* menuitem, void* userdata)
215 menuitem->userdata = userdata;
221 swap_item(Menu* menu, int src_index, int dest_index)
223 ar_swap_item((void**)menu->menu_items, src_index, dest_index);
229 delete_item(Menu* menu, int index)
231 if (index < 0 || index > menu->menu_length-1) return -1;
233 for (int i = index; i <= menu->menu_length-1; i++) {
234 menu->menu_items[i] = menu->menu_items[i+1];
237 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
238 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
240 menu->menu_length -= 1;
242 /* also move the current selected position if it's last */
243 if (menu->selected_item > menu->menu_length-1) {
244 menu->selected_item = menu->menu_length-1;
251 insert_item(Menu* menu, MenuItem* menuitem, int index)
252 { // note, this func does not validate index
254 /* resize array and insert */
255 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
257 for (int i = menu->menu_length; i > index; i--) {
258 menu->menu_items[i] = menu->menu_items[i-1];
261 menu->menu_items[index] = menuitem;
262 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
263 menu->menu_length += 1;
265 /* move cursor pos */
266 menu->selected_item = index;
272 menu_insert_mode(Menu* menu, int insert_index)
274 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
279 /* move cursor to right spot */
280 ungetstr(menu->menu_items[insert_index]->title);
281 mvwgetnstr(menu->sub_win,
282 insert_index, // account for wrap later too
290 new_contents = strdup(temp);
291 menu->menu_items[insert_index]->title = new_contents;
293 /* delete if empty - maybe move this to a cleanup stage */
294 if (strlen(new_contents) == 0) {
295 delete_item(menu, insert_index);
302 menu_driver(Menu* menu, MenuAction action)
307 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
311 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
315 menu->selected_item = 0;
319 menu->selected_item = menu->menu_length-1;
323 if (menu->selected_item <= 0) break;
324 swap_item(menu, menu->selected_item, menu->selected_item-1);
325 menu->selected_item -= 1;
329 if (menu->selected_item >= menu->menu_length-1) break;
330 swap_item(menu, menu->selected_item, menu->selected_item+1);
331 menu->selected_item += 1;
335 delete_item(menu, menu->selected_item);
339 insert_item(menu, create_blank_menuitem(), menu->menu_length);
340 menu_insert_mode(menu, menu->selected_item);
343 case MENU_INSERT_ABOVE:
344 insert_item(menu, create_blank_menuitem(), menu->selected_item);
345 menu_insert_mode(menu, menu->selected_item);
348 case MENU_INSERT_BELOW:
349 insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
350 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
354 menu_insert_mode(menu, menu->selected_item);
357 default: // This is here for debug, disable later
358 fprintf(stderr, "Invalid menu action");
365 render_menu(Menu* menu)
367 /* draw outer menu (prob dont need this every render) */
368 /* wclear(menu->menu_win); */
369 wattron(menu->menu_win, COLOR_PAIR(
370 (menu->focused == true) ?
371 TS_MENU_SELECTED: TS_MENU_NONSELECTED
373 mvwprintw(menu->menu_win, 0, MENU_PAD_LEFT, menu->menu_name);
374 wattroff(menu->menu_win, COLOR_PAIR(0));
377 /* sprintf(buf, "%d", items_visible(menu)); */
378 /* mvprintw(20, 20, buf); */
380 /* calculate scroll */
383 visible = items_visible(menu);
385 if (menu->selected_item > menu->scroll_offset+visible) {
386 // may be dangerous, assumes render after every action
387 menu->scroll_offset += 1;
388 } else if (menu->selected_item < menu->scroll_offset) {
389 menu->scroll_offset -= 1;
392 /* draw inner menu */
393 wclear(menu->sub_win);
396 for (int i = menu->scroll_offset; i < menu->menu_length; i++) {
397 curline += render_item(menu, i, curline);
400 wrefresh(menu->sub_win);
401 wrefresh(menu->menu_win);
407 render_item(Menu* menu, int item_index, int start_y)
410 curitem = menu->menu_items[item_index];
412 /* color selected item */
413 wattron(menu->sub_win, COLOR_PAIR(
414 (item_index == menu->selected_item && menu->focused == true) ?
415 TS_SELECTED : TS_NONSELECTED
417 mvwprintw(menu->sub_win, start_y, 0, curitem->title);
418 wattroff(menu->sub_win, COLOR_PAIR(0));
420 /* display number of items */
421 if (strlen(curitem->description) > 0) {
422 mvwprintw(menu->sub_win, start_y+1, 0, curitem->description);
425 return item_height(curitem);
429 item_height(MenuItem* menuitem)
434 if (strlen(menuitem->description) > 0) {
442 items_visible(Menu* menu)
445 int maxwidth; // unused
447 getmaxyx(menu->sub_win, maxheight, maxwidth);
449 int i = menu->scroll_offset;
451 for (; i < menu->menu_length; i++) {
453 lines += item_height(menu->menu_items[i]);
455 if (lines >= maxheight) break;
463 free_menu(Menu* menu)