forked from len0rd/rockbox
63b6281505
allows menus + submenus + context menus all with simple tables menu_t which is a table of strings func_t which are the corresponding functions to go with those strings see lua_scripts/submenu_demo.lua Change-Id: I907b74b4abef0ecbe49f181d0ced6e6d20e94de5
93 lines
2.5 KiB
Lua
93 lines
2.5 KiB
Lua
--Bilgus 4/2021 Menu with subitems and context demo
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require("printsubmenu")
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local scrpath = rb.current_path()
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local function get_ctx_menu(parent, sel, menu_t, func_t)
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local mt = {"Context menu " .. (menu_t[parent] or "ROOT") ..
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" : " .. menu_t[sel], "Quit", "Action 1", "Action 2"}
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local ft = {false, function() menu_ctx.quit = true return true end}
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return mt, ft
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end
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local function ITEM_MENU()
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local function flung(i, menu_t, func_t)
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local parent = get_parent() or 0
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rb.splash(100, "flung " .. (menu_t[parent] or "?"))
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end
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local function foo(i, menu_t, func_t)
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local parent = get_parent() or 0
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rb.splash(100, "FOO " .. menu_t[parent])
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end
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local function far(i, menu_t, func_t)
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local parent = get_parent() or 0
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rb.splash(100, "far" .. menu_t[parent])
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end
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return {"Flung", "FOO", "Far"},
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{flung, foo, far}
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end
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local function USERITEMS()
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return {"Item_1", "Item_2", "Item_3"},
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{create_sub_menu(2, ITEM_MENU()), create_sub_menu(2, ITEM_MENU()),
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create_sub_menu(2, ITEM_MENU()), function() end}
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end
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local function MAIN_MENU()
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local function go_back(i, m, f)
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local parent = get_parent() or 0
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if parent > 0 then
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f[parent](parent, m, f)
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else
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menu_ctx.quit = true
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end
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menu_ctx.start = parent - 1
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return true
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end
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local mt = {
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[1] = "lua Menu Demo",
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[2] = "Items",
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[3] = "Back",
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}
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local ft = {
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[0] = go_back, --if user cancels do this function
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[1] = false, -- shouldn't happen title occupies this slot
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[2] = create_sub_menu(1, USERITEMS()),
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[3] = go_back,
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}
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return mt, ft, get_ctx_menu
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end
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function ShowMain()
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set_menu(MAIN_MENU())
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end
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--ShowMainMenu()
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ShowMain()
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rb.lcd_clear_display()
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rb.lcd_update()
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local lu = collectgarbage("collect")
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local used, allocd, free = rb.mem_stats()
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local lu = collectgarbage("count")
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local fmt = function(t, v) return string.format("%s: %d Kb\n", t, v /1024) end
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-- this is how lua recommends to concat strings rather than ..
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local s_t = {}
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s_t[1] = "rockbox:\n"
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s_t[2] = fmt("Used ", used)
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s_t[3] = fmt("Allocd ", allocd)
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s_t[4] = fmt("Free ", free)
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s_t[5] = "\nlua:\n"
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s_t[6] = fmt("Used", lu * 1024)
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s_t[7] = "\n\nNote that the rockbox used count is a high watermark"
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rb.splash_scroller(5 * rb.HZ, table.concat(s_t))
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--require("print_lua_func")
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os.exit(1, "Goodbye")
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