X-Git-Url: https://git.danieliu.xyz/?p=taskasaur.git;a=blobdiff_plain;f=menu.c;h=816b5ddcf6c3c8e4705674566952b739b8f742f7;hp=d47c553fe7ea47c5c4b8f17fb2522e27fbc73919;hb=HEAD;hpb=99cc6e19069115197e8101c1ed585fe0ae5de405

diff --git a/menu.c b/menu.c
index d47c553..816b5dd 100644
--- a/menu.c
+++ b/menu.c
@@ -10,12 +10,16 @@
 #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
 
+#define MAX_CONTENTS_LENGTH 256
+
 typedef struct MenuItem {
-    char* contents;
+    char* title;
+    char* description;
+    void* userdata;
 } MenuItem;
 
 typedef struct Menu {
@@ -26,25 +30,55 @@ typedef struct Menu {
     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);
-int delete_item(Menu* menu, int index);
+
+/* insert mode */
+int menu_insert_mode(Menu* menu, int insert_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* contents)
+create_menuitem(char* title)
 {
     MenuItem* new_menuitem;
+    TodoItem* new_userdata;
 
     new_menuitem = malloc(sizeof(MenuItem));
-    new_menuitem->contents = contents;
+    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(char* menu_name, MenuItem** item_list)
 {
@@ -57,11 +91,91 @@ create_menu(char* menu_name, MenuItem** item_list)
     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;
 }
 
+/* getters */
+WINDOW*
+get_menu_win(Menu* menu)
+{
+    return menu->menu_win;
+}
+
+MenuItem*
+get_menu_item(Menu* menu, int index)
+{
+    if (index < 0 || index >= menu->menu_length) return NULL;
+
+    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)
+{
+    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)
 {
@@ -70,42 +184,73 @@ set_menu_win(Menu* menu, WINDOW* win)
     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
-swap_item(Menu* menu, int src_index, int dest_index)
+set_menu_userdata(Menu* menu, void* userdata)
 {
-    MenuItem* temp;
+    menu->userdata = userdata;
+    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;
+}
 
-    temp = menu->menu_items[dest_index];
-    menu->menu_items[dest_index] = menu->menu_items[src_index];
-    menu->menu_items[src_index] = temp;
+int
+set_menuitem_title(MenuItem* menuitem, char* title)
+{
+    menuitem->title = title;
+    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;
 }
@@ -115,12 +260,9 @@ delete_item(Menu* menu, int index)
 {
     if (index < 0 || index > menu->menu_length-1) return -1;
 
-    int temp_size = (menu->menu_length-index-1)*sizeof(MenuItem*);
-    MenuItem* temp[temp_size];
-
-    /* might break if last item? */
-    memcpy(temp, menu->menu_items[index+1], temp_size);
-    memcpy(menu->menu_items[index], temp, temp_size);
+    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
@@ -135,6 +277,64 @@ delete_item(Menu* menu, int index)
     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;
+    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->menu_win,
+        insert_pos, 
+        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)
 {
@@ -170,7 +370,28 @@ menu_driver(Menu* menu, MenuAction action)
 
         case MENU_DELETE:
             delete_item(menu, menu->selected_item);
-            wclear(menu->sub_win);
+            break;
+
+        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;
+
+        case MENU_EDIT:
+            menu_insert_mode(menu, menu->selected_item);
             break;
 
         default: // This is here for debug, disable later
@@ -183,45 +404,102 @@ menu_driver(Menu* menu, MenuAction action)
 int
 render_menu(Menu* menu)
 {
-    /* draw outer menu (prob dont need this every render) */ 
-    int menu_header_color;
+    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)
+        );
+    }
 
-    /* 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));
+    /* 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]);
+    }
 
-    /* draw inner menu */
-    int cur_line = 0;
-    for (int i = 0; i < menu->menu_length-menu->scroll_offset; i++) {
+    wrefresh(menu->menu_win);
 
-        int wrapped_lines;
-        char* wrapped_text;
-        
-        /* 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); 
+    return 0;
+}
 
-        /* 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));
+void
+default_render_item(Menu* menu, int item_index, int start_y)
+{
+    MenuItem* curitem;
+    int hlcolor;
 
-        cur_line += wrapped_lines;
+    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);
+}
 
-        free(wrapped_text);
+
+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;
 
     }
 
-    wrefresh(menu->sub_win);
-    wrefresh(menu->menu_win);
+    return vis;
+}
 
-    return 0;
+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