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 {
25 MenuItem** menu_items;
36 int swap_item(Menu* menu, int src_index, int dest_index);
37 int delete_item(Menu* menu, int index);
38 int insert_item(Menu* menu, int index);
41 create_menuitem(char* contents)
43 MenuItem* new_menuitem;
45 new_menuitem = malloc(sizeof(MenuItem));
46 new_menuitem->contents = contents;
52 create_menu(char* menu_name, MenuItem** item_list)
56 new_menu = malloc(sizeof(Menu));
57 new_menu->menu_name = menu_name;
58 new_menu->menu_items = item_list;
59 new_menu->menu_length = array_length(MenuItem*, item_list);
60 new_menu->selected_item = 0;
61 new_menu->scroll_offset = 0;
62 new_menu->focused = false;
63 set_menu_win(new_menu, stdscr);
69 set_menu_win(Menu* menu, WINDOW* win)
74 getmaxyx(menu->menu_win, height, width);
76 /* create a subwin (also prob free old subwin?) */
77 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
78 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
79 menu->sub_win = derwin(
91 get_menu_items(Menu* menu)
97 set_menu_focus(Menu* menu, bool focus)
99 menu->focused = focus;
105 get_selected_item(Menu* menu)
107 return menu->selected_item;
111 set_selected_item(Menu* menu, int selected_item)
113 menu->selected_item = selected_item;
119 get_menu_length(Menu* menu)
121 return menu->menu_length;
125 swap_item(Menu* menu, int src_index, int dest_index)
129 temp = menu->menu_items[dest_index];
130 menu->menu_items[dest_index] = menu->menu_items[src_index];
131 menu->menu_items[src_index] = temp;
137 delete_item(Menu* menu, int index)
139 if (index < 0 || index > menu->menu_length-1) return -1;
141 int temp_size = (menu->menu_length-index-1)*sizeof(MenuItem*);
143 /* might break if last item? */
144 memmove(menu->menu_items[index], menu->menu_items[index+1], temp_size);
146 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
147 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
149 menu->menu_length -= 1;
151 /* also move the current selected position if it's last */
152 if (menu->selected_item > menu->menu_length-1) {
153 menu->selected_item = menu->menu_length-1;
160 insert_item(Menu* menu, int index)
161 { // note, this func does not validate index
164 MenuItem* new_menuitem;
166 // remember null char
167 /* new_content = malloc((MAX_CONTENTS_LENGTH+1)*sizeof(char)); */
168 new_content = strdup("lmao");
170 new_menuitem = create_menuitem(new_content);
172 /* resize array and insert */
173 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
175 for (int i = menu->menu_length; i > index; i--) {
176 menu->menu_items[i] = menu->menu_items[i-1];
179 menu->menu_items[index] = new_menuitem;
180 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
181 menu->menu_length += 1;
183 /* move cursor pos */
184 menu->selected_item = index;
190 menu_driver(Menu* menu, MenuAction action)
195 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
199 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
203 menu->selected_item = 0;
207 menu->selected_item = menu->menu_length-1;
211 if (menu->selected_item <= 0) break;
212 swap_item(menu, menu->selected_item, menu->selected_item-1);
213 menu->selected_item -= 1;
217 if (menu->selected_item >= menu->menu_length-1) break;
218 swap_item(menu, menu->selected_item, menu->selected_item+1);
219 menu->selected_item += 1;
223 delete_item(menu, menu->selected_item);
224 wclear(menu->sub_win);
230 /* insert_item(menu, menu->selected_item); */
231 insert_item(menu, menu->selected_item);
232 wclear(menu->sub_win);
235 default: // This is here for debug, disable later
236 fprintf(stderr, "Invalid menu action");
243 render_menu(Menu* menu)
245 /* draw outer menu (prob dont need this every render) */
246 int menu_header_color;
248 /* menu_header_color = */
249 wattron(menu->menu_win, COLOR_PAIR(
250 (menu->focused == true) ?
251 TS_MENU_SELECTED: TS_MENU_NONSELECTED
253 mvwprintw(menu->menu_win, 0, MENU_PAD_LEFT, menu->menu_name);
254 wattroff(menu->menu_win, COLOR_PAIR(0));
256 /* draw inner menu */
258 for (int i = 0; i < menu->menu_length-menu->scroll_offset; i++) {
263 /* wrap text by inserting newlines (maxwidth-1 for newline char)*/
264 wrapped_text = wrap_text(menu->menu_items[i]->contents, menu->max_width-1, &wrapped_lines);
266 /* color selected item */
267 wattron(menu->sub_win, COLOR_PAIR(
268 (i == menu->selected_item && menu->focused == true) ?
269 TS_SELECTED : TS_NONSELECTED
271 mvwprintw(menu->sub_win, cur_line, 0, wrapped_text);
272 wattroff(menu->sub_win, COLOR_PAIR(0));
274 cur_line += wrapped_lines;
280 wrefresh(menu->sub_win);
281 wrefresh(menu->menu_win);
287 free_menu(Menu* menu)