Convert the main menu screen to lua lol

1 files changed, 59 insertions, 0 deletions

diff --git a/lib/luavgl/examples/fs.lua b/lib/luavgl/examples/fs.lua
new file mode 100644
index 00000000..6672f4d0
--- /dev/null
+++ b/lib/luavgl/examples/fs.lua
@@ -0,0 +1,59 @@
+local function fs_example()
+    -- local f <close>, msg, code = lvgl.open_file(SCRIPT_PATH .. "/tmp.txt") -- for lua 5.4
+    local f, msg, code = lvgl.fs.open_file(SCRIPT_PATH .. "/tmp.txt", "rw")
+    if not f then
+        print("failed: ", msg, code)
+        return
+    end
+
+    print("f: ", f)
+
+    f:write("0123456789", 123, "\n", "the remaining text")
+    f:seek("set", 0) -- go back
+    local header, remaining = f:read(10, "*a")
+    f:close()
+    if not header then
+        print("read failed or EOF")
+        return
+    end
+
+    print("header len:", #header, ": ", header)
+    print("remaining: ", remaining)
+
+    lvgl.Label(nil, {
+        x = 0,
+        y = 0,
+        text_font = lvgl.Font("montserrat", 20, "normal"),
+        text = header .. remaining,
+        align = lvgl.ALIGN.TOP_LEFT
+    })
+
+    local list = lvgl.List(nil, {
+        align = lvgl.ALIGN.TOP_RIGHT,
+        pad_all = 10,
+        text_font = lvgl.BUILTIN_FONT.MONTSERRAT_12
+    })
+    list:add_text("Directory list:")
+
+    -- local dir <close>, msg, code = lvgl.fs.open_dir(SCRIPT_PATH .. "/")
+    local dir, msg, code = lvgl.fs.open_dir(SCRIPT_PATH .. "/")
+    if not dir then
+        print("open dir failed: ", msg, code)
+        return
+    end
+
+    while true do
+        local d = dir:read()
+        if not d then break end
+        local is_dir = string.byte(d, 1) == string.byte("/", 1)
+        local str = (is_dir and "dir: " or "file: ") .. d
+        print(str)
+
+        list:add_text(str):set{
+            border_width = 1,
+        }
+    end
+    dir:close()
+end
+
+fs_example()