#include "headers/utils.h"
#define MENU_PAD_TOP 2
-#define MENU_PAD_BOTTOM 1
+#define MENU_PAD_BOTTOM 2
#define MENU_PAD_LEFT 2
#define MENU_PAD_RIGHT 1
int scroll_offset;
bool focused;
WINDOW* menu_win;
- WINDOW* sub_win;
int max_height;
int max_width;
void* userdata;
+ void (*render_item)(Menu*, int, int);
+ int (*item_height)(MenuItem*);
} Menu;
int swap_item(Menu* menu, int src_index, int dest_index);
/* prob temp for now */
MenuItem* create_blank_menuitem(void);
+/* rendering stuff */
+void default_render_item(Menu* menu, int item_index, int start_y);
+int default_item_height(MenuItem* menuitem);
+int items_visible(Menu* menu, int offset);
+int items_visible_rev(Menu* menu, int offset);
MenuItem*
create_menuitem(char* title)
new_menu->selected_item = 0;
new_menu->scroll_offset = 0;
new_menu->focused = false;
+ new_menu->userdata = NULL;
+ new_menu->render_item = *default_render_item;
+ new_menu->item_height = *default_item_height;
set_menu_win(new_menu, stdscr);
return new_menu;
return menu->menu_win;
}
-WINDOW*
-get_menu_subwin(Menu* menu)
-{
- return menu->sub_win;
-}
-
MenuItem*
get_menu_item(Menu* menu, int index)
{
return menu->menu_items[index];
}
+MenuItem**
+get_menu_itemlist(Menu* menu)
+{
+ return menu->menu_items;
+}
+
int
get_selected_item(Menu* menu)
{
return menu->selected_item;
}
+MenuItem*
+get_selected_menuitem(Menu* menu)
+{
+ return get_menu_item(menu, get_selected_item(menu));
+}
+
+bool
+get_menu_focused(Menu* menu)
+{
+ return menu->focused;
+}
+
int
get_menu_length(Menu* menu)
{
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;
}
return 0;
}
+int
+set_menu_renderitem(Menu* menu, void (*render_item)(Menu*, int, int))
+{
+ menu->render_item = render_item;
+ return 0;
+}
+
+int
+set_menu_itemheight(Menu* menu, int (*item_height)(MenuItem*))
+{
+ menu->item_height = item_height;
+ return 0;
+}
+
+int
+set_menuitem_title(MenuItem* menuitem, char* title)
+{
+ menuitem->title = title;
+ return 0;
+}
+
int
set_menuitem_descrip(MenuItem* menuitem, char* descrip)
{
{
char temp[MAX_CONTENTS_LENGTH+1]; // remember null
char* new_contents;
+ int insert_pos;
curs_on();
+ // account for multiline items
+ insert_pos = menu->scroll_offset;
+ for (int i = 0; i < insert_index; i++) {
+ insert_pos += menu->item_height(menu->menu_items[i]);
+ }
+
/* move cursor to right spot */
ungetstr(menu->menu_items[insert_index]->title);
- mvwgetnstr(menu->sub_win,
- insert_index, // account for wrap later too
+ mvwgetnstr(menu->menu_win,
+ insert_pos,
0,
temp,
MAX_CONTENTS_LENGTH
case MENU_APPEND:
insert_item(menu, create_blank_menuitem(), menu->menu_length);
+ render_menu(menu); // refresh after inserting
menu_insert_mode(menu, menu->selected_item);
break;
case MENU_INSERT_ABOVE:
insert_item(menu, create_blank_menuitem(), menu->selected_item);
+ render_menu(menu);
menu_insert_mode(menu, menu->selected_item);
break;
case MENU_INSERT_BELOW:
insert_item(menu, create_blank_menuitem(), menu->selected_item+1);
+ render_menu(menu);
menu_insert_mode(menu, menu->selected_item); // inserted item is cur now
break;
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);
+ wclear(menu->menu_win);
+
+ /* calculate scroll */
+ int visible;
+
+ visible = items_visible(menu, menu->scroll_offset);
+
+ if (menu->selected_item >= menu->scroll_offset+visible) {
+ menu->scroll_offset = clamp(
+ menu->selected_item-items_visible_rev(menu, menu->selected_item)+1,
+ 0,
+ floorzero(menu->menu_length-1)
+ );
+
+ } else if (menu->selected_item < menu->scroll_offset) {
+ menu->scroll_offset = clamp(
+ menu->selected_item,
+ 0,
+ floorzero(menu->menu_length-1)
+ );
+ }
+ /* render menu items */
+ int curline = 0;
+ for (int i = menu->scroll_offset; i < menu->menu_length; i++) {
+ menu->render_item(menu, i, curline);
+ curline += menu->item_height(menu->menu_items[i]);
}
- wrefresh(menu->sub_win);
wrefresh(menu->menu_win);
return 0;
}
+void
+default_render_item(Menu* menu, int item_index, int start_y)
+{
+ MenuItem* curitem;
+ int hlcolor;
+
+ curitem = menu->menu_items[item_index];
+
+ /* color selected item */
+ hlcolor = COLOR_PAIR((item_index == menu->selected_item && menu->focused == true) ? TS_SELECTED : TS_NONSELECTED);
+ wattron(menu->menu_win, hlcolor);
+ mvwprintw(menu->menu_win, start_y, 0, curitem->title);
+ wattroff(menu->menu_win, hlcolor);
+}
+
+
+int
+default_item_height(MenuItem* menuitem)
+{
+ return 1; // maybe account for line wrap by default
+}
+
+int
+items_visible(Menu* menu, int offset)
+{
+ int maxheight;
+ int maxwidth; // unused
+
+ getmaxyx(menu->menu_win, maxheight, maxwidth);
+
+ int vis = 0;
+ int lines = 0;
+ for (int i = offset ; i < menu->menu_length; i++) {
+
+ lines += menu->item_height(menu->menu_items[i]);
+ if (lines > maxheight) break;
+ vis += 1;
+
+ }
+
+ return vis;
+}
+
+int
+items_visible_rev(Menu* menu, int offset)
+{
+ int maxheight;
+ int maxwidth; // unused
+
+ getmaxyx(menu->menu_win, maxheight, maxwidth);
+
+ int vis = 0;
+ int lines = 0;
+ for (int i = offset; i > 0; i--) {
+
+ lines += menu->item_height(menu->menu_items[i]);
+ if (lines > maxheight) break;
+ vis +=1;
+
+ }
+
+ return vis;
+}
+
int
free_menu(Menu* menu)
{
