multiple menus

[taskasaur.git] / menu.c

diff --git a/menu.c b/menu.c
index 5016dcc..d47c553 100644 (file)
--- a/menu.c
+++ b/menu.c
@@ -2,21 +2,31 @@
 #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
+
 typedef struct MenuItem {
     char* contents;
 } MenuItem;
 
 typedef struct Menu {
+    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;
 } Menu;
@@ -36,14 +46,17 @@ create_menuitem(char* contents)
 }
 
 Menu* 
-create_menu(MenuItem** item_list)
+create_menu(char* menu_name, MenuItem** item_list)
 {
     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;
@@ -52,8 +65,21 @@ create_menu(MenuItem** item_list)
 int
 set_menu_win(Menu* menu, WINDOW* win)
 {
+    int height, width;
+
     menu->menu_win = win;
-    getmaxyx(menu->menu_win, menu->max_height, menu->max_width);
+    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;
 }
@@ -64,6 +90,14 @@ get_menu_items(Menu* menu)
     return NULL;
 }
 
+int
+set_menu_focus(Menu* menu, bool focus)
+{
+    menu->focused = focus;
+    
+    return 0;
+}
+
 int
 swap_item(Menu* menu, int src_index, int dest_index)
 {
@@ -136,7 +170,7 @@ menu_driver(Menu* menu, MenuAction action)
 
         case MENU_DELETE:
             delete_item(menu, menu->selected_item);
-            wclear(menu->menu_win);
+            wclear(menu->sub_win);
             break;
 
         default: // This is here for debug, disable later
@@ -149,25 +183,34 @@ menu_driver(Menu* menu, MenuAction action)
 int
 render_menu(Menu* menu)
 {
-    int cur_line;
+    /* draw outer menu (prob dont need this every render) */ 
+    int menu_header_color;
 
-    cur_line = 0;
+    /* menu_header_color = */ 
+    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));
 
-    for (int i = 0; i < menu->menu_length; i++) {
+    /* draw inner menu */
+    int cur_line = 0;
+    for (int i = 0; i < menu->menu_length-menu->scroll_offset; i++) {
 
         int wrapped_lines;
         char* wrapped_text;
-        int text_color;
         
-        /* wrap text by inserting newlines */
-        wrapped_text = wrap_text(menu->menu_items[i]->contents, menu->max_width, &wrapped_lines);        
+        /* wrap text by inserting newlines (maxwidth-1 for newline char)*/
+        wrapped_text = wrap_text(menu->menu_items[i]->contents, menu->max_width-1, &wrapped_lines); 
 
         /* color selected item */
-        text_color = (i == menu->selected_item) ? TS_SELECTED : TS_NONSELECTED;
-
-        wattron(menu->menu_win, COLOR_PAIR(text_color));
-        mvwprintw(menu->menu_win, cur_line, 0, wrapped_text);
-        wattroff(menu->menu_win, COLOR_PAIR(text_color));
+        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;
 
@@ -175,6 +218,9 @@ render_menu(Menu* menu)
 
     }
 
+    wrefresh(menu->sub_win);
+    wrefresh(menu->menu_win);
+
     return 0;
 }