+#include <stdlib.h>
#include <stddef.h>
+#include <string.h>
+#include <stdbool.h>
+#include <ncurses.h>
#include "headers/menu.h"
+#include "headers/render.h"
+#include "headers/utils.h"
+
+#define MENU_PAD_TOP 2
+#define MENU_PAD_BOTTOM 1
+#define MENU_PAD_LEFT 2
+#define MENU_PAD_RIGHT 1
+
+#define MAX_CONTENTS_LENGTH 256
typedef struct MenuItem {
- char* contents;
+ char* title;
+ char* description;
+ void* userdata;
} MenuItem;
typedef struct Menu {
- MenuItem* menu_items;
+ char* menu_name;
+ MenuItem** menu_items;
int menu_length;
int selected_item;
+ int scroll_offset;
+ bool focused;
+ WINDOW* menu_win;
+ WINDOW* sub_win;
+ int max_height;
+ int max_width;
+ void* userdata;
} Menu;
+int swap_item(Menu* menu, int src_index, int dest_index);
+
+/* insert mode */
+int menu_insert_mode(Menu* menu, int insert_index);
+
+/* prob temp for now */
+MenuItem* create_blank_menuitem(void);
+
+
+MenuItem*
+create_menuitem(char* title)
+{
+ MenuItem* new_menuitem;
+ TodoItem* new_userdata;
+
+ new_menuitem = malloc(sizeof(MenuItem));
+ new_menuitem->title = title;
+ new_menuitem->description = strdup(""); //TEMP FOR NOW
+
+ new_userdata = malloc(sizeof(TodoItem));
+ new_userdata->item_name = title;
+ new_userdata->description = strdup("");
+ new_userdata->due = strdup("");
+ new_userdata->subtask_list = malloc(0);
+ new_userdata->subtask_count = 0;
+
+ new_menuitem->userdata = new_userdata;
+
+ return new_menuitem;
+}
+
+MenuItem*
+create_blank_menuitem(void)
+{
+ return create_menuitem(strdup(""));
+}
Menu*
-create_menu(MenuItem* item_list)
+create_menu(char* menu_name, MenuItem** item_list)
{
- return NULL;
+ Menu* new_menu;
+
+ new_menu = malloc(sizeof(Menu));
+ new_menu->menu_name = menu_name;
+ new_menu->menu_items = item_list;
+ new_menu->menu_length = array_length(MenuItem*, item_list);
+ new_menu->selected_item = 0;
+ new_menu->scroll_offset = 0;
+ new_menu->focused = false;
+ set_menu_win(new_menu, stdscr);
+
+ return new_menu;
+}
+
+/* getters */
+WINDOW*
+get_menu_win(Menu* menu)
+{
+ return menu->menu_win;
+}
+
+WINDOW*
+get_menu_subwin(Menu* menu)
+{
+ return menu->sub_win;
+}
+
+MenuItem*
+get_menu_item(Menu* menu, int index)
+{
+ if (index < 0 || index >= menu->menu_length) return NULL;
+
+ return menu->menu_items[index];
}
int
-set_menu_items(Menu* menu, MenuItem* item_list)
+get_selected_item(Menu* menu)
+{
+ return menu->selected_item;
+}
+
+int
+get_menu_length(Menu* menu)
+{
+ return menu->menu_length;
+}
+
+char*
+get_menu_name(Menu* menu)
+{
+ return menu->menu_name;
+}
+
+void*
+get_menu_userdata(Menu* menu)
{
+ return menu->userdata;
+}
+
+char*
+get_menuitem_title(MenuItem* menuitem)
+{
+ return menuitem->title;
+}
+
+char*
+get_menuitem_descrip(MenuItem* menuitem)
+{
+ return menuitem->description;
+}
+
+void*
+get_menuitem_userdata(MenuItem* menuitem)
+{
+ return menuitem->userdata;
+}
+
+
+/* setters */
+int
+set_menu_win(Menu* menu, WINDOW* win)
+{
+ int height, width;
+
+ menu->menu_win = win;
+ getmaxyx(menu->menu_win, height, width);
+
+ /* create a subwin (also prob free old subwin?) */
+ menu->max_height = height-MENU_PAD_TOP-MENU_PAD_BOTTOM;
+ menu->max_width = width-MENU_PAD_LEFT-MENU_PAD_RIGHT;
+ menu->sub_win = derwin(
+ menu->menu_win,
+ menu->max_height,
+ menu->max_width,
+ MENU_PAD_TOP,
+ MENU_PAD_LEFT
+ );
+
return 0;
}
-MenuItem*
-get_menu_items(Menu* menu)
+int
+set_selected_item(Menu* menu, int selected_item)
{
- return NULL;
+ menu->selected_item = selected_item;
+ return 0;
+}
+
+int
+set_menu_focus(Menu* menu, bool focus)
+{
+ menu->focused = focus;
+ return 0;
}
+
+int
+set_menu_userdata(Menu* menu, void* userdata)
+{
+ menu->userdata = userdata;
+ return 0;
+}
+
+int
+set_menuitem_descrip(MenuItem* menuitem, char* descrip)
+{
+ menuitem->description = descrip;
+ return 0;
+}
+
+int
+set_menuitem_userdata(MenuItem* menuitem, void* userdata)
+{
+ menuitem->userdata = userdata;
+ return 0;
+}
+
+
+int
+swap_item(Menu* menu, int src_index, int dest_index)
+{
+ ar_swap_item((void**)menu->menu_items, src_index, dest_index);
+
+ return 0;
+}
+
+int
+delete_item(Menu* menu, int index)
+{
+ if (index < 0 || index > menu->menu_length-1) return -1;
+
+ for (int i = index; i <= menu->menu_length-1; i++) {
+ menu->menu_items[i] = menu->menu_items[i+1];
+ }
+
+ menu->menu_items = realloc(menu->menu_items, menu->menu_length*sizeof(MenuItem*));
+ menu->menu_items[menu->menu_length-1] = 0; // preserve null at end
+
+ menu->menu_length -= 1;
+
+ /* also move the current selected position if it's last */
+ if (menu->selected_item > menu->menu_length-1) {
+ menu->selected_item = menu->menu_length-1;
+ }
+
+ return 0;
+}
+
+int
+insert_item(Menu* menu, MenuItem* menuitem, int index)
+{ // note, this func does not validate index
+
+ /* resize array and insert */
+ menu->menu_items = realloc(menu->menu_items, (menu->menu_length+2)*sizeof(MenuItem*));
+
+ for (int i = menu->menu_length; i > index; i--) {
+ menu->menu_items[i] = menu->menu_items[i-1];
+ }
+
+ menu->menu_items[index] = menuitem;
+ menu->menu_items[menu->menu_length+1] = 0; // remember null at end
+ menu->menu_length += 1;
+
+ /* move cursor pos */
+ menu->selected_item = index;
+
+ return 0;
+}
+
+int
+menu_insert_mode(Menu* menu, int insert_index)
+{
+ char temp[MAX_CONTENTS_LENGTH+1]; // remember null
+ char* new_contents;
+
+ curs_on();
+
+ /* move cursor to right spot */
+ ungetstr(menu->menu_items[insert_index]->title);
+ mvwgetnstr(menu->sub_win,
+ insert_index, // account for wrap later too
+ 0,
+ temp,
+ MAX_CONTENTS_LENGTH
+ );
+ curs_off();
+
+ /* copy out */
+ new_contents = strdup(temp);
+ menu->menu_items[insert_index]->title = new_contents;
+
+ /* delete if empty - maybe move this to a cleanup stage */
+ if (strlen(new_contents) == 0) {
+ delete_item(menu, insert_index);
+ }
+
+ return 0;
+}
+
+int
+menu_driver(Menu* menu, MenuAction action)
+{
+
+ switch (action) {
+ case MENU_UP:
+ menu->selected_item = menu->selected_item-1 >= 0 ? menu->selected_item-1 : 0;
+ break;
+
+ case MENU_DOWN:
+ menu->selected_item = menu->selected_item+1 <= menu->menu_length-1 ? menu->selected_item+1 : menu->menu_length-1;
+ break;
+
+ case MENU_TOP:
+ menu->selected_item = 0;
+ break;
+
+ case MENU_BOTTOM:
+ menu->selected_item = menu->menu_length-1;
+ break;
+
+ case MENU_MOVE_UP:
+ if (menu->selected_item <= 0) break;
+ swap_item(menu, menu->selected_item, menu->selected_item-1);
+ menu->selected_item -= 1;
+ break;
+
+ case MENU_MOVE_DOWN:
+ if (menu->selected_item >= menu->menu_length-1) break;
+ swap_item(menu, menu->selected_item, menu->selected_item+1);
+ menu->selected_item += 1;
+ break;
+
+ case MENU_DELETE:
+ delete_item(menu, menu->selected_item);
+ break;
+
+ case MENU_APPEND:
+ insert_item(menu, create_blank_menuitem(), menu->menu_length);
+ menu_insert_mode(menu, menu->selected_item);
+ break;
+
+ case MENU_INSERT_ABOVE:
+ insert_item(menu, create_blank_menuitem(), menu->selected_item);
+ menu_insert_mode(menu, menu->selected_item);
+ break;
+
+ case MENU_INSERT_BELOW:
+ insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
+ menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
+ break;
+
+ case MENU_EDIT:
+ menu_insert_mode(menu, menu->selected_item);
+ break;
+
+ default: // This is here for debug, disable later
+ fprintf(stderr, "Invalid menu action");
+ }
+
+ return 0;
+}
+
+int
+render_menu(Menu* menu)
+{
+ /* draw outer menu (prob dont need this every render) */
+ /* wclear(menu->menu_win); */
+ wattron(menu->menu_win, COLOR_PAIR(
+ (menu->focused == true) ?
+ TS_MENU_SELECTED: TS_MENU_NONSELECTED
+ ));
+ mvwprintw(menu->menu_win, 0, MENU_PAD_LEFT, menu->menu_name);
+ wattroff(menu->menu_win, COLOR_PAIR(0));
+
+ /* draw inner menu */
+ wclear(menu->sub_win);
+
+ int cur_line = 0;
+ for (int i = 0; i < menu->menu_length-menu->scroll_offset; i++) {
+
+ MenuItem* curitem;
+ int wrapped_lines;
+ char* wrapped_text;
+
+ curitem = menu->menu_items[i];
+
+ /* wrap text by inserting newlines (maxwidth-1 for newline char)*/
+ wrapped_text = wrap_text(curitem->title, menu->max_width-1, &wrapped_lines);
+
+ /* color selected item */
+ wattron(menu->sub_win, COLOR_PAIR(
+ (i == menu->selected_item && menu->focused == true) ?
+ TS_SELECTED : TS_NONSELECTED
+ ));
+ mvwprintw(menu->sub_win, cur_line, 0, wrapped_text);
+ wattroff(menu->sub_win, COLOR_PAIR(0));
+
+ cur_line += wrapped_lines;
+
+ /* display number of items */
+ if (strlen(curitem->description) > 0) {
+ mvwprintw(menu->sub_win, cur_line, 0, curitem->description);
+ cur_line += 1;
+ }
+
+ free(wrapped_text);
+
+ }
+
+ wrefresh(menu->sub_win);
+ wrefresh(menu->menu_win);
+
+ return 0;
+}
+
+int
+free_menu(Menu* menu)
+{
+ return 0;
+}
+
