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);
39 int menu_insert_mode(Menu* menu, int insert_index);
41 /* prob temp for now */
42 MenuItem* create_blank_menuitem(void);
46 create_menuitem(char* contents)
48 MenuItem* new_menuitem;
50 new_menuitem = malloc(sizeof(MenuItem));
51 new_menuitem->contents = contents;
57 create_blank_menuitem(void)
59 return create_menuitem(strdup(""));
63 create_menu(char* menu_name, MenuItem** item_list)
67 new_menu = malloc(sizeof(Menu));
68 new_menu->menu_name = menu_name;
69 new_menu->menu_items = item_list;
70 new_menu->menu_length = array_length(MenuItem*, item_list);
71 new_menu->selected_item = 0;
72 new_menu->scroll_offset = 0;
73 new_menu->focused = false;
74 set_menu_win(new_menu, stdscr);
80 set_menu_win(Menu* menu, WINDOW* win)
85 getmaxyx(menu->menu_win, height, width);
87 /* create a subwin (also prob free old subwin?) */
88 menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
89 menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
90 menu->sub_win = derwin(
102 get_menu_item(Menu* menu, int index)
104 if (index < 0 || index >= menu->menu_length) return NULL;
106 return menu->menu_items[index];
110 set_menu_focus(Menu* menu, bool focus)
112 menu->focused = focus;
118 get_selected_item(Menu* menu)
120 return menu->selected_item;
124 set_selected_item(Menu* menu, int selected_item)
126 menu->selected_item = selected_item;
132 get_menu_length(Menu* menu)
134 return menu->menu_length;
138 swap_item(Menu* menu, int src_index, int dest_index)
142 temp = menu->menu_items[dest_index];
143 menu->menu_items[dest_index] = menu->menu_items[src_index];
144 menu->menu_items[src_index] = temp;
150 delete_item(Menu* menu, int index)
152 if (index < 0 || index > menu->menu_length-1) return -1;
154 for (int i = index; i <= menu->menu_length-1; i++) {
155 menu->menu_items[i] = menu->menu_items[i+1];
158 menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
159 menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
161 menu->menu_length -= 1;
163 /* also move the current selected position if it's last */
164 if (menu->selected_item > menu->menu_length-1) {
165 menu->selected_item = menu->menu_length-1;
168 wclear(menu->sub_win);
174 insert_item(Menu* menu, MenuItem* menuitem, int index)
175 { // note, this func does not validate index
177 /* resize array and insert */
178 menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
180 for (int i = menu->menu_length; i > index; i--) {
181 menu->menu_items[i] = menu->menu_items[i-1];
184 menu->menu_items[index] = menuitem;
185 menu->menu_items[menu->menu_length+1] = 0; // remember null at end
186 menu->menu_length += 1;
188 /* move cursor pos */
189 menu->selected_item = index;
195 menu_insert_mode(Menu* menu, int insert_index)
197 char temp[MAX_CONTENTS_LENGTH+1]; // remember null
201 wclear(menu->sub_win);
206 /* move cursor to right spot */
207 ungetstr(menu->menu_items[insert_index]->contents);
208 mvwgetnstr(menu->sub_win,
209 insert_index, // account for wrap later too
217 new_contents = strdup(temp);
218 menu->menu_items[insert_index]->contents = new_contents;
220 /* delete if empty - maybe move this to a cleanup stage */
221 if (strlen(new_contents) == 0) {
222 delete_item(menu, insert_index);
229 menu_driver(Menu* menu, MenuAction action)
234 menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
238 menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
242 menu->selected_item = 0;
246 menu->selected_item = menu->menu_length-1;
250 if (menu->selected_item <= 0) break;
251 swap_item(menu, menu->selected_item, menu->selected_item-1);
252 menu->selected_item -= 1;
256 if (menu->selected_item >= menu->menu_length-1) break;
257 swap_item(menu, menu->selected_item, menu->selected_item+1);
258 menu->selected_item += 1;
262 delete_item(menu, menu->selected_item);
266 insert_item(menu, create_blank_menuitem(), menu->menu_length);
267 menu_insert_mode(menu, menu->selected_item);
270 case MENU_INSERT_ABOVE:
271 insert_item(menu, create_blank_menuitem(), menu->selected_item);
272 menu_insert_mode(menu, menu->selected_item);
275 case MENU_INSERT_BELOW:
276 insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
277 menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
281 menu_insert_mode(menu, menu->selected_item);
284 default: // This is here for debug, disable later
285 fprintf(stderr, "Invalid menu action");
292 render_menu(Menu* menu)
294 /* draw outer menu (prob dont need this every render) */
295 int menu_header_color;
297 /* menu_header_color = */
298 wattron(menu->menu_win, COLOR_PAIR(
299 (menu->focused == true) ?
300 TS_MENU_SELECTED: TS_MENU_NONSELECTED
302 mvwprintw(menu->menu_win, 0, MENU_PAD_LEFT, menu->menu_name);
303 wattroff(menu->menu_win, COLOR_PAIR(0));
305 /* draw inner menu */
307 for (int i = 0; i < menu->menu_length-menu->scroll_offset; i++) {
312 /* wrap text by inserting newlines (maxwidth-1 for newline char)*/
313 wrapped_text = wrap_text(menu->menu_items[i]->contents, menu->max_width-1, &wrapped_lines);
315 /* color selected item */
316 wattron(menu->sub_win, COLOR_PAIR(
317 (i == menu->selected_item && menu->focused == true) ?
318 TS_SELECTED : TS_NONSELECTED
320 mvwprintw(menu->sub_win, cur_line, 0, wrapped_text);
321 wattroff(menu->sub_win, COLOR_PAIR(0));
323 cur_line += wrapped_lines;
329 wrefresh(menu->sub_win);
330 wrefresh(menu->menu_win);
336 free_menu(Menu* menu)