sr2lua/music_store.lua

```
----------------- 
```
```
-- MUSIC STORE -- 
```
```
----------------- 
```
```
-- "global" variables 
```
```
MUSIC_STORE_FOOTER_FADE_TIME = .25 
```
```
 
```
```
Music_store_data = { } 
```
```
Music_store_footer = { } 
```
```
Music_store_current_selection = 0 
```
```
Music_store_menu = { } 
```

MUSIC_STORE_DOC_HANDLE = vint_document_find("music_store")

Music_store_sort_data = { sort_by_artist = true, sorted_menu = -1 }

```
Music_store_dont_preview = false 
```
```
 
```
```
---------------------- 
```
```
--	SYSTEM FUNCTIONS -- 
```
```
---------------------- 
```
```
--[ INITIALIZE AND SHUTDOWN ]-- 
```
```
------------------------------- 
```
```
--	Initialize the menu 
```
```
function music_store_init() 
```
```
 
```
```
	--Event Tracking 
```

	event_tracking_interface_enter("Music Store")

```
 
```
```
	menu_store_init(true) 
```
```
 
```
```
	music_store_build_horz_menu() 
```
```
	 
```
```
	menu_init() 
```
```
	menu_horz_init(Music_store_horz_menu) 
```
```
end 
```
```
 
```
```
-- Shutdown and cleanup the menu 
```
```
function music_store_cleanup() 
```
```
end 
```
```
 
```
```
--[ EXIT ]-- 
```
```
------------ 
```
```
function music_store_exit(menu_data) 
```

	local body = "MUSIC_STORE_EXIT_PROMPT"

```
	local heading = "MENU_TITLE_WARNING" 
```
```
	 
```

	dialog_box_confirmation(heading, body, "music_store_exit_confirm")

```
end 
```

function music_store_exit_confirm(result, action)

```
	if action ~= DIALOG_ACTION_CLOSE then 
```
```
		return 
```
```
	end 
```
```
	 
```
```
	if result == 0 then 
```
```
		menu_close(music_store_exit_final) 
```
```
	end 
```
```
end 
```
```
function music_store_exit_final() 
```

	vint_document_unload(MUSIC_STORE_DOC_HANDLE)

```
end 
```
```
-------------------------- 
```
```
-- FOOTER FUNCTIONALITY -- 
```
```
-------------------------- 
```
```
function music_store_clean_footer() 
```

		vint_set_property(Music_store_footer.artist_h, "offset", 0, 0)

		vint_set_property(Music_store_footer.artist_h, "alpha", 1)

		vint_set_property(Music_store_footer.track_h, "offset", 0, 0)

		vint_set_property(Music_store_footer.track_h, "alpha", 1)

```
 
```
```
		--	Clean up stale threads/tweens 
```

		if Music_store_footer.restart_thread ~= nil then

			thread_kill(Music_store_footer.restart_thread)

			Music_store_footer.track_thread = nil

```
		end 
```
```
	 
```

		if Music_store_footer.fade_thread ~= nil then

			thread_kill(Music_store_footer.fade_thread)

			Music_store_footer.fade_thread = nil

```
		end 
```
```
		 
```

		if Music_store_footer.track_fade_twn ~= nil then

			vint_object_destroy(Music_store_footer.track_fade_twn)

			Music_store_footer.track_fade_twn = nil

```
		end 
```
```
		 
```

		if Music_store_footer.track_twn ~= nil then

			vint_object_destroy(Music_store_footer.track_twn)

```
			Music_store_footer.track_twn = nil 
```
```
		end 
```
```
		 
```

		if Music_store_footer.artist_fade_twn ~= nil then

			vint_object_destroy(Music_store_footer.artist_fade_twn)

			Music_store_footer.artist_fade_twn = nil

```
		end 
```
```
		 
```

		if Music_store_footer.artist_twn ~= nil then

			vint_object_destroy(Music_store_footer.artist_twn)

```
			Music_store_footer.artist_twn = nil 
```
```
		end 
```
```
end 
```
```
 
```

function music_store_build_footer(menu_data)

	if menu_data.footer_height ~= nil and menu_data.footer_height ~= 0 then

```
		 
```
```
		music_store_clean_footer() 
```
```
						 
```
```
		Music_store_footer.clip_width = nil 
```
```
		 
```
```
		--	Find the footer 
```

		local grp = vint_object_clone(vint_object_find("music_store_footer"), Menu_option_labels.control_parent)

		vint_set_property(grp, "visible", true)

```
 
```
```
		--	Destroy the stale footer 
```

		if menu_data.footer ~= nil and menu_data.footer.footer_grp ~= nil and menu_data.footer.footer_grp ~= 0 then

			vint_object_destroy(menu_data.footer.footer_grp)

```
		end 
```
```
 
```
```
		menu_data.footer = { } 
```
```
		menu_data.footer.footer_grp = grp 
```
```
		 
```
```
		-- Initialize everything 
```

		Music_store_footer.clip_h = vint_object_find("music_footer_clip", grp)

		Music_store_footer.artist_h = vint_object_find("artist_label", grp)

		Music_store_footer.track_h = vint_object_find("track_label", grp)

		Music_store_footer.price_h = vint_object_find("price_amount", grp)

```
		 
```

		vint_set_property(Music_store_footer.artist_h, "offset", 0, 0)

		vint_set_property(Music_store_footer.track_h, "offset", 0, 0)

```
		 
```

		vint_set_property(Music_store_footer.artist_h, "visible", true)

		vint_set_property(Music_store_footer.track_h, "visible", true)

		vint_set_property(Music_store_footer.price_h , "visible", true)

```
	end 
```
```
end 
```
```
 
```

function music_store_update_footer(idx)

	local menu_item = Music_store_menu[idx]

```
	--	Make sure we have a footer 
```

	if Music_store_menu.footer_height ~= nil and Music_store_menu.footer_height ~= 0 then

		-- Tint it according to the price (if the player can afford it

		if menu_store_get_player_cash() < menu_item.price then

			vint_set_property(Music_store_footer.price_h, "tint", 1, 0, 0)

```
		else 
```

			vint_set_property(Music_store_footer.price_h, "tint", 0.88, 0.749, 0.05)

```
		end 
```

		--	Set the other properties to reflect the track

		vint_set_property(Music_store_footer.price_h, "text_tag", "$" .. format_cash(menu_item.price))

		vint_set_property(Music_store_footer.artist_h, "text_tag", menu_item.artist_name)

		vint_set_property(Music_store_footer.track_h, "text_tag", menu_item.track_name)

```
	end 
```
```
end 
```
```
 
```

function music_store_finalize_footer(menu_data)

```
	--	Make sure we have a footer 
```

	if menu_data.footer_height ~= nil and menu_data.footer_height ~= 0 then

		local price_size_x, price_size_y = vint_get_property(Music_store_footer.price_h, "screen_size")

		local clip_width = menu_data.menu_width - price_size_x - 23

		Music_store_footer.clip_width = clip_width

```
		 
```
```
		--	Correct the position of the price 
```

		vint_set_property(Music_store_footer.price_h, "anchor", menu_data.menu_width - 20, 0)

		vint_set_property(Music_store_footer.clip_h, "clip_size", clip_width, 60)

```
 
```
```
		music_store_scroll_footer() 
```
```
	end 
```
```
	 
```
```
	btn_tips_update() 
```
```
end 
```
```
 
```
```
function music_store_scroll_footer() 
```
```
	music_store_clean_footer() 
```
```
 
```

	-- If the clip_width is messed up, carry on

	if Music_store_footer.clip_width == nil or Music_store_footer.clip_width == 0 then

```
		return 
```
```
	end 
```
```
	 
```

	if Music_store_menu.footer_height ~= nil and Music_store_menu.footer_height ~= 0 then

```
		local artist_duration = 0 
```
```
		local track_duration = 0 
```
```
		local duration = 0 
```
```
		local twn = 0 
```
```
 
```

		-- Cleaning up a mess a little bit by putting these 2 together.

```
		for i = 0, 1 do 
```
```
			local handle = 0 
```
```
			if i == 0 then 
```

				handle = Music_store_footer.artist_h

```
			else 
```

				handle = Music_store_footer.track_h

```
			end 
```
```
			 
```

			local text_width, text_height = element_get_actual_size(handle, "screen_size")

			local clipped_width = text_width - Music_store_footer.clip_width

```
 
```

			-- Doesn't need to scroll if clipped width is under 0

```
			if clipped_width > 0 then 
```
```
				clipped_width = clipped_width + 15 
```

				duration = MENU_MARQUEE_SPEED * clipped_width 	--	Store the duration

```
			 
```

				twn = vint_object_create("footer_tween", "tween", vint_object_find("root_animation", nil, MUSIC_STORE_DOC_HANDLE))

				vint_set_property(twn, "target_handle", handle)

				vint_set_property(twn, "target_property", "offset")

				vint_set_property(twn, "start_value", 0, 0)

				vint_set_property(twn, "end_value", 0 - clipped_width, 0)

				vint_set_property(twn, "duration", duration)

				vint_set_property(twn, "start_time", vint_get_time_index() + MENU_MARQUEE_DELAY)

```
			 
```
```
				if i == 0 then 
```
```
					artist_duration = duration 
```

					Music_store_footer.artist_twn = twn

					Music_store_footer.artist_clipped_width = clipped_width

```
				else 
```
```
					track_duration = duration 
```

					Music_store_footer.track_twn = twn

					Music_store_footer.track_clipped_width = clipped_width

```
				end 
```
```
			end 
```
```
		end 
```
```
		 
```

		--	Set the call back on the longer one

		if (Music_store_footer.artist_twn == nil or Music_store_footer.artist_twn == 0) and (Music_store_footer.track_twn == nil or Music_store_footer.track_twn == 0) then

```
			return 
```
```
		end 
```
```
		 
```

		if artist_duration > track_duration then

```
			twn = Music_store_footer.artist_twn 
```
```
		else 
```
```
			twn = Music_store_footer.track_twn 
```
```
		end 
```
```
		 
```

		vint_set_property(twn, "end_event", "music_footer_scroll_twn_end")

```
	end 
```
```
end 
```
```
 
```
```
function music_footer_scroll_twn_end() 
```

   if Music_store_footer.fade_thread ~= nil then

		thread_kill(Music_store_footer.fade_thread)

```
	end 
```
```
	 
```

	Music_store_footer.fade_thread = thread_new("music_footer_fade_twn_start")

```
end 
```
```
 
```
```
function music_footer_fade_twn_start() 
```
```
	delay(MENU_MARQUEE_DELAY) 
```
```
	local twn = 0 
```
```
 
```

	if Music_store_footer.artist_twn ~= nil and Music_store_footer.artist_twn ~= 0 then

		twn =	vint_object_create("footer_fade_twn", "tween", vint_object_find("root_animation", nil, MUSIC_STORE_DOC_HANDLE))

		vint_set_property(twn, "target_handle", Music_store_footer.artist_h)

		vint_set_property(twn, "target_property", "alpha")

		vint_set_property(twn, "start_value", 1)

		vint_set_property(twn, "end_value", 0)

		vint_set_property(twn, "duration", MUSIC_STORE_FOOTER_FADE_TIME)

		vint_set_property(twn, "start_time", vint_get_time_index())

		vint_set_property(twn, "end_event", "music_footer_fade_twn_end")

```
	end 
```
```
	 
```

	if Music_store_footer.artist_fade_twn ~= nil and Music_store_footer.artist_fade_twn ~= 0 then

		vint_object_destroy(Music_store_footer.artist_fade_twn)

```
	end 
```
```
	 
```

	Music_store_footer.artist_fade_twn = twn

```
	twn = 0 
```
```
	 
```

	if Music_store_footer.track_twn ~= nil and Music_store_footer.track_twn ~= 0 then

		twn =	vint_object_create("footer_fade_twn", "tween", vint_object_find("root_animation", nil, MUSIC_STORE_DOC_HANDLE))

		vint_set_property(twn, "target_handle", Music_store_footer.track_h)

		vint_set_property(twn, "target_property", "alpha")

		vint_set_property(twn, "start_value", 1)

		vint_set_property(twn, "end_value", 0)

		vint_set_property(twn, "duration", MUSIC_STORE_FOOTER_FADE_TIME)

		vint_set_property(twn, "start_time", vint_get_time_index())

		if Music_store_footer.artist_fade_twn == 0 then

			vint_set_property(twn, "end_event", "music_footer_fade_twn_end")

```
		end 
```
```
	end 
```
```
	 
```

	if Music_store_footer.track_fade_twn ~= nil and Music_store_footer.track_fade_twn ~= 0 then

		vint_object_destroy(Music_store_footer.track_fade_twn)

```
	end 
```
```
		 
```

	Music_store_footer.track_fade_twn = twn

```
end 
```
```
 
```
```
function music_footer_fade_twn_end() 
```

   if Music_store_footer.restart_thread ~= nil then

		thread_kill(Music_store_footer.restart_thread)

```
	end 
```
```
	 
```

	Music_store_footer.restart_thread = thread_new("music_footer_twn_restart")

```
end 
```
```
 
```
```
function music_footer_twn_restart() 
```
```
	delay(MENU_MARQUEE_DELAY) 
```

	vint_set_property(Music_store_footer.artist_h, "offset", 0, 0)

	vint_set_property(Music_store_footer.track_h, "offset", 0, 0)

```
	 
```

	vint_set_property(Music_store_footer.artist_h, "alpha", 1)

	vint_set_property(Music_store_footer.track_h, "alpha", 1)

```
	 
```
```
	delay(MENU_MARQUEE_DELAY) 
```

	if Music_store_footer.artist_twn ~= 0 and Music_store_footer.artist_twn ~= nil then

		vint_set_property(Music_store_footer.artist_twn, "state", "waiting")

		vint_set_property(Music_store_footer.artist_twn, "start_time", vint_get_time_index())

```
	end 
```
```
	 
```

	if Music_store_footer.track_twn ~= 0 and Music_store_footer.track_twn ~= nil then

		vint_set_property(Music_store_footer.track_twn, "state", "waiting")

		vint_set_property(Music_store_footer.track_twn, "start_time", vint_get_time_index())

```
	end 
```
```
end 
```
```
 
```

function	music_store_release(menu_data)

	-- Clean up the group when the menu is released

	if menu_data.footer_height ~= 0 and menu_data.footer_height ~= nil and menu_data.footer ~= nil then

		vint_set_property(menu_data.footer.footer_grp, "visible", false)

		vint_object_destroy(menu_data.footer.footer_grp)

```
	end 
```
```
end 
```
```
 
```
```
------------------------ 
```
```
--	MENU FUNCTIONALITY -- 
```
```
------------------------ 
```
```
function music_store_build_horz_menu() 
```
```
	Music_store_horz_menu.num_items = 0 
```

	--	Get all the genres for the top menu

	vint_dataresponder_request("music_store_populate_genres", "music_store_add_genres", 0)

	local unlockable = table_clone(Music_store_horz_menu[0])

	for i = 0, Music_store_horz_menu.num_items - 2 do

		Music_store_horz_menu[i] = 	table_clone(Music_store_horz_menu[i + 1])

```
	end 
```
```
	 
```

--	Music_store_horz_menu[Music_store_horz_menu.num_items - 1] = table_clone(unlockable)

--	DAD 7/30/08 - Remove unlockables altogether. TDL 254954

	Music_store_horz_menu.num_items = Music_store_horz_menu.num_items - 1

```
	 
```
```
end 
```
```
 
```

function music_store_add_genres(display_name)

	local new_table = table_clone(Music_store_menu_a)

```
	 
```
```
	--	Set the genre 
```

	Music_store_horz_menu[Music_store_horz_menu.num_items] = { label = display_name, genre = Music_store_horz_menu.num_items,  sub_menu=new_table }

```
	--	Increment the count 
```

	Music_store_horz_menu.num_items = Music_store_horz_menu.num_items + 1

```
end 
```
```
 
```

function music_store_sort_menu(menu_data)

```
	 
```

	if Music_store_btns.x_button == nil then

```
		return 
```
```
	end	 
```
```
	 
```
```
	-- Toggle what to sort by 
```

	if Music_store_sort_data.sort_by_artist == true then

		Music_store_sort_data.sort_by_artist = false

```
	else 
```

		Music_store_sort_data.sort_by_artist = true

```
	end 
```
```
	 
```

	--	Store the name of the artist and track so that we can highlight the same track after sorting

	Music_store_sort_data.sorted_artist = Music_store_menu[Music_store_menu.highlighted_item].artist_name

	Music_store_sort_data.sorted_track  = Music_store_menu[Music_store_menu.highlighted_item].track_name

```
	 
```
```
	Music_store_dont_preview = true 
```
```
	--	Rebuild the menu, sorted 
```
```
	music_store_rebuild_menu(menu_data) 
```
```
end 
```
```
 
```

function music_store_rebuild_menu(menu_data)

```
	local menu_to_use 
```
```
	local swapped 
```
```
 
```

	--	Swap out the real menu with the a 3rd menu and store whether or not we've done that

	if Music_store_sort_data.sorted_menu == false then

```
		menu_to_use = Music_store_menu_c 
```
```
		swapped = true 
```
```
	else 
```

		menu_to_use = Music_store_horz_menu[Music_store_horz_menu.current_selection].sub_menu

```
		swapped = false 
```
```
	end 
```
```
	 
```
```
	-- Show the sorted menu 
```

	menu_show(menu_to_use, MENU_TRANSITION_SWEEP_LEFT)

```
	 
```

	--	Make sure we keep the fact it was sorted

	Music_store_sort_data.sorted_menu = swapped

	music_store_finalize_footer(menu_to_use)

```
end 
```
```
 
```

function music_store_build_menu(menu_data)

```
	Music_store_menu = menu_data 
```

	Music_store_sort_data.sorted_menu = false

```
	Music_store_menu.num_items = 0 
```
```
	 
```
```
	--	Build the menu 
```

	vint_dataresponder_request("music_store_populate_tracks", "music_store_add_tracks", 0, Music_store_horz_menu[Music_store_horz_menu.current_selection].genre, Music_store_sort_data.sort_by_artist)

```
	 
```
```
	--	No footer if there are no tracks 
```

	if Music_store_menu.num_items == 0 then

```
		Music_store_menu.num_items = 1 
```

		Music_store_menu[0] = { label = "STORE_MUSIC_NOT_UNLOCKED", type=MENU_ITEM_TYPE_SELECTABLE }

```
		Music_store_menu.footer_height = 0 
```
```
		Music_store_btns.x_button = nil 
```
```
	else  
```
```
		Music_store_menu.footer_height = 40 
```
```
		 
```

		if Music_store_sort_data.sort_by_artist == false then

			Music_store_btns.x_button = { label = "MP3_PLAYLIST_OPTIONS_SORT_ARTIST", enabled = btn_tips_default_x, }

```
		else 
```

			Music_store_btns.x_button = { label = "MP3_PLAYLIST_OPTIONS_SORT_TITLE", enabled = btn_tips_default_x, }

```
		end 
```
```
	end 
```
```
	 
```
```
	--	Update the header 
```
```
	menu_data.highlighted_item = 0 
```

	menu_data.header_label_str = Music_store_horz_menu[Music_store_horz_menu.current_selection].label

```
 
```

	-- Select the same track if we just sorted

	if Music_store_sort_data.sorted_artist ~= 0 and Music_store_sort_data.sorted_artist ~= nil then

		for i = 0, menu_data.num_items - 1 do

			-- We found it, so highlight it, reset the stored artist/track and exit the loop

			if menu_data[i].artist_name == Music_store_sort_data.sorted_artist and menu_data[i].track_name == Music_store_sort_data.sorted_track then

```
				menu_data.highlighted_item = i 
```

				Music_store_sort_data.sorted_artist = nil

				Music_store_sort_data.sorted_track_name = nil

```
				i = menu_data.num_items 
```
```
			end 
```
```
		end 
```
```
	end 
```
```
 
```

	-- Build the footer and correct the data

```
	music_store_build_footer(menu_data) 
```

	music_store_update_footer(menu_data.highlighted_item)

```
	 
```

	--	If we have a footer, that means its a real menu, and preview the track

	if (Music_store_menu.footer_height ~= nil and Music_store_menu.footer_height ~= 0) or Music_store_menu[Music_store_menu.highlighted_item].id ~= nil then

		if Music_store_dont_preview == true then

```
			Music_store_dont_preview = false 
```
```
		else 
```

			music_store_preview_track(Music_store_menu[Music_store_menu.highlighted_item].id)

```
		end 
```
```
	else  
```
```
		music_store_preview_track(-1) 
```
```
	end 
```
```
end 
```
```
 
```

function music_store_add_tracks(artist_name, track_name, price)

```
	local display_name 
```
```
	 
```

	--	Display the correct thing according to sort

	if Music_store_sort_data.sort_by_artist == true then

```
		display_name = artist_name 
```
```
	else 
```
```
		display_name = track_name 
```
```
	end 
```
```
	 
```

	Music_store_menu[Music_store_menu.num_items] = { label = display_name, type = MENU_ITEM_TYPE_SELECTABLE, on_select = music_store_purchase, on_nav = music_store_nav_item, price = price, id = Music_store_menu.num_items, artist_name=artist_name, track_name=track_name }

	Music_store_menu.num_items = Music_store_menu.num_items + 1

```
end 
```
```
 
```

function music_store_purchase(menu_label, menu_data)

	-- Confirm the purchase if we can afford it

	if menu_store_get_player_cash() >= menu_data.price then

--		local body = "Do you wish to purchase " .. menu_data.artist_name .. " - " .. menu_data.track_name .. " for " .. format_cash(menu_data.price) .. "?"

		local insertion_values = { [0] = menu_data.artist_name, [1] = menu_data.track_name, [2] = format_cash(menu_data.price) }

		local body = vint_insert_values_in_string("MUSIC_STORE_PURCHASE_PROMPT", insertion_values)

```
		local heading = "MENU_TITLE_CONFIRM" 
```

		dialog_box_confirmation(heading, body, "music_store_confirm_selection")

		Music_store_current_selection = menu_data

```
	else  
```

		dialog_box_message("MENU_TITLE_NOTICE", "HUD_SHOP_INSUFFICIENT_FUNDS")

```
	end 
```
```
end 
```
```
 
```

function music_store_confirm_selection(result, action)

```
	if action ~= DIALOG_ACTION_CLOSE then 
```
```
		return 
```
```
	end 
```
```
	 
```

	-- If they want it, then buy it, and rebuild the menu to reflect that its no longer on the menu

```
	if result == 0 then 
```

		award_style("music", Music_store_current_selection.price)

		music_store_make_purchase(Music_store_current_selection.id)

		music_store_rebuild_menu(Music_store_menu)

```
		audio_play(Menu_sound_purchase) 
```
```
	end 
```
```
end 
```
```
 
```

function music_store_nav_item(menu_data)

	if Music_store_menu.footer_height ~= nil then

		vint_set_property(Music_store_footer.artist_h, "offset", 0, 0)

		vint_set_property(Music_store_footer.track_h, "offset", 0, 0)

```
 
```

		if Music_store_footer.artist_twn ~= nil then

			vint_object_destroy(Music_store_footer.artist_twn)

```
			Music_store_footer.artist_twn = nil 
```
```
		end 
```

		if Music_store_footer.artist_thread ~= nil then

			thread_kill(Music_store_footer.artist_thread)

			Music_store_footer.artist_thread = nil

```
		end 
```
```
		 
```

		if Music_store_footer.track_twn ~= nil then

			vint_object_destroy(Music_store_footer.track_twn)

```
			Music_store_footer.track_twn = nil 
```
```
		end 
```

		if Music_store_footer.track_thread ~= nil then

			thread_kill(Music_store_footer.track_thread)

			Music_store_footer.track_thread = nil

```
		end 
```
```
		 
```

		-- When traversing the menu, update the preview and footer when nav'ing

		if (Music_store_menu.footer_height ~= nil and Music_store_menu.footer_height ~= 0) or Music_store_menu[Music_store_menu.highlighted_item].id ~= nil then

			music_store_preview_track(Music_store_menu[Music_store_menu.highlighted_item].id)

```
		end 
```
```
		 
```

		music_store_update_footer(Music_store_menu[Music_store_menu.highlighted_item].id)

```
 
```
```
		music_store_scroll_footer() 
```
```
	end 
```
```
end 
```
```
 
```
```
--------------- 
```
```
-- MENU DATA -- 
```
```
--------------- 
```
```
Music_store_btns = { 
```

	a_button = { label = "CONTROL_SELECT", enabled = btn_tips_default_a, },

	x_button = { label = "MP3_PLAYLIST_OPTIONS_SORT_TITLE", enabled = btn_tips_default_x, },

	b_button = { label = "CONTROL_RESUME", enabled = btn_tips_default_b, },

```
} 
```
```
 
```
```
Music_store_menu_a = { 
```
```
	header_str 		= "NONE", 
```

	on_show 	  		= music_store_build_menu,

```
	on_back 	  		= music_store_exit, 
```
```
	on_release 	  	= music_store_release, 
```
```
	on_nav			= music_store_nav_item, 
```

	on_alt_select 	= music_store_sort_menu,

	on_post_show	= music_store_finalize_footer,

```
	num_items  		= 0, 
```
```
	 
```
```
	btn_tips 		= Music_store_btns, 
```
```
	footer_height 	= 40, 
```
```
} 
```
```
 
```
```
Music_store_menu_b = { 
```
```
	header_str 		= "NONE", 
```

	on_show 	  		= music_store_build_menu,

```
	on_back 	  		= music_store_exit, 
```
```
	on_release 	  	= music_store_release, 
```
```
	on_nav			= music_store_nav_item, 
```

	on_alt_select 	= music_store_sort_menu,

	on_post_show	= music_store_finalize_footer,

```
	num_items  		= 0, 
```
```
 
```
```
	btn_tips 		= Music_store_btns, 
```
```
	footer_height = 40, 
```
```
} 
```
```
 
```
```
Music_store_menu_c = { 
```
```
	header_str 		= "NONE", 
```

	on_show 	  		= music_store_build_menu,

```
	on_back 	  		= music_store_exit, 
```
```
	on_release 	  	= music_store_release, 
```
```
	on_nav			= music_store_nav_item, 
```

	on_alt_select 	= music_store_sort_menu,

	on_post_show	= music_store_finalize_footer,

```
	num_items  		= 0, 
```
```
	 
```
```
	btn_tips 		= Music_store_btns, 
```
```
	footer_height = 40, 
```
```
} 
```
```
 
```
```
 
```
```
Music_store_horz_menu = { 
```
```
	num_items = 0, 
```
```
	current_selection = 0, 
```
```
	 
```
```
} 
```
```
 
```