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 int menu_insert_mode(Menu* menu, int insert_index);
44 create_menuitem(char* contents)
46 MenuItem* new_menuitem;
48 new_menuitem = malloc(sizeof(MenuItem));
49 new_menuitem->contents = contents;
55 create_menu(char* menu_name, MenuItem** item_list)
59 new_menu = malloc(sizeof(Menu));
60 new_menu->menu_name = menu_name;
61 new_menu->menu_items = item_list;
62 new_menu->menu_length = array_length(MenuItem*, item_list);
63 new_menu->selected_item = 0;
64 new_menu->scroll_offset = 0;
65 new_menu->focused = false;
66 set_menu_win(new_menu, stdscr);
72 set_menu_win(Menu* menu, WINDOW* win)
77 getmaxyx(menu->menu_win, height, width);
79 /* create a subwin (also prob free old subwin?) */
80 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
81 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
82 menu->sub_win = derwin(
94 get_menu_items(Menu* menu)
100 set_menu_focus(Menu* menu, bool focus)
102 menu->focused = focus;
108 get_selected_item(Menu* menu)
110 return menu->selected_item;
114 set_selected_item(Menu* menu, int selected_item)
116 menu->selected_item = selected_item;
122 get_menu_length(Menu* menu)
124 return menu->menu_length;
128 swap_item(Menu* menu, int src_index, int dest_index)
132 temp = menu->menu_items[dest_index];
133 menu->menu_items[dest_index] = menu->menu_items[src_index];
134 menu->menu_items[src_index] = temp;
140 delete_item(Menu* menu, int index)
142 if (index < 0 || index > menu->menu_length-1) return -1;
144 int temp_size = (menu->menu_length-index-1)*sizeof(MenuItem*);
146 /* might break if last item? */
147 memmove(menu->menu_items[index], menu->menu_items[index+1], temp_size);
149 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
150 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
152 menu->menu_length -= 1;
154 /* also move the current selected position if it's last */
155 if (menu->selected_item > menu->menu_length-1) {
156 menu->selected_item = menu->menu_length-1;
163 insert_item(Menu* menu, int index)
164 { // note, this func does not validate index
167 MenuItem* new_menuitem;
169 // remember null char
170 /* new_content = malloc((MAX_CONTENTS_LENGTH+1)*sizeof(char)); */
171 new_content = strdup("");
173 new_menuitem = create_menuitem(new_content);
175 /* resize array and insert */
176 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
178 for (int i = menu->menu_length; i > index; i--) {
179 menu->menu_items[i] = menu->menu_items[i-1];
182 menu->menu_items[index] = new_menuitem;
183 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
184 menu->menu_length += 1;
186 /* move cursor pos */
187 menu->selected_item = index;
193 menu_insert_mode(Menu* menu, int insert_index)
195 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
199 wclear(menu->sub_win);
204 /* move cursor to right spot */
205 ungetstr(menu->menu_items[insert_index]->contents);
206 mvwgetnstr(menu->sub_win,
207 insert_index, // account for wrap later too
215 new_contents = strdup(temp);
216 menu->menu_items[insert_index]->contents = new_contents;
222 menu_driver(Menu* menu, MenuAction action)
227 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
231 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
235 menu->selected_item = 0;
239 menu->selected_item = menu->menu_length-1;
243 if (menu->selected_item <= 0) break;
244 swap_item(menu, menu->selected_item, menu->selected_item-1);
245 menu->selected_item -= 1;
249 if (menu->selected_item >= menu->menu_length-1) break;
250 swap_item(menu, menu->selected_item, menu->selected_item+1);
251 menu->selected_item += 1;
255 delete_item(menu, menu->selected_item);
256 wclear(menu->sub_win);
260 insert_item(menu, menu->menu_length);
261 menu_insert_mode(menu, menu->selected_item);
264 case MENU_INSERT_ABOVE:
265 insert_item(menu, menu->selected_item);
266 menu_insert_mode(menu, menu->selected_item);
269 case MENU_INSERT_BELOW:
270 insert_item(menu, menu->selected_item+1);
271 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
275 menu_insert_mode(menu, menu->selected_item);
278 default: // This is here for debug, disable later
279 fprintf(stderr, "Invalid menu action");
286 render_menu(Menu* menu)
288 /* draw outer menu (prob dont need this every render) */
289 int menu_header_color;
291 /* menu_header_color = */
292 wattron(menu->menu_win, COLOR_PAIR(
293 (menu->focused == true) ?
294 TS_MENU_SELECTED: TS_MENU_NONSELECTED
296 mvwprintw(menu->menu_win, 0, MENU_PAD_LEFT, menu->menu_name);
297 wattroff(menu->menu_win, COLOR_PAIR(0));
299 /* draw inner menu */
301 for (int i = 0; i < menu->menu_length-menu->scroll_offset; i++) {
306 /* wrap text by inserting newlines (maxwidth-1 for newline char)*/
307 wrapped_text = wrap_text(menu->menu_items[i]->contents, menu->max_width-1, &wrapped_lines);
309 /* color selected item */
310 wattron(menu->sub_win, COLOR_PAIR(
311 (i == menu->selected_item && menu->focused == true) ?
312 TS_SELECTED : TS_NONSELECTED
314 mvwprintw(menu->sub_win, cur_line, 0, wrapped_text);
315 wattroff(menu->sub_win, COLOR_PAIR(0));
317 cur_line += wrapped_lines;
323 wrefresh(menu->sub_win);
324 wrefresh(menu->menu_win);
330 free_menu(Menu* menu)