From 8a0a167adbf3d9b6f8b6f16aaf20ca39ad5549de Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Sun, 12 Nov 2023 19:14:09 +1100
Subject: Convert the main menu screen to lua lol

---
 lib/luavgl/examples/dropdown.lua | 74 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 lib/luavgl/examples/dropdown.lua

(limited to 'lib/luavgl/examples/dropdown.lua')

diff --git a/lib/luavgl/examples/dropdown.lua b/lib/luavgl/examples/dropdown.lua
new file mode 100644
index 00000000..037f51cb
--- /dev/null
+++ b/lib/luavgl/examples/dropdown.lua
@@ -0,0 +1,74 @@
+-- a dropdown on top left
+local dd = lvgl.Dropdown(nil, {
+    -- note there are two "Orange"
+    options = "Apple\nBanana\nOrange\nCherry\nGrape\nRaspberry\nMelon\nOrange\nLemon\nNuts",
+    symbol = "\xEF\x81\x94",
+    dir = lvgl.DIR.RIGHT,
+    highlight = false,
+    text = nil,
+    align = {
+        type = lvgl.ALIGN.TOP_LEFT,
+        x_ofs = 20,
+        y_ofs = 20,
+    }
+})
+local list = dd:get("list")
+print("get dropdown list: ", list)
+list:set { text_font = lvgl.BUILTIN_FONT.MONTSERRAT_20 }
+
+print("available options:", dd:get("options"))
+
+local cnt = 0
+dd:onevent(lvgl.EVENT.VALUE_CHANGED,
+    ---comment
+    ---@param obj Dropdown
+    ---@param code ObjEventCode
+    function(obj, code)
+        obj:add_option(string.format("Option:%d", cnt), dd:get("option_cnt"))
+        cnt = cnt + 1
+        print(obj:get("selected_str"), "option_cnt" .. obj:get("option_cnt"))
+    end
+)
+
+-- another dropdown on top left
+local dd = lvgl.Dropdown(nil, {
+    options = "Apple\nBanana\nOrange\nCherry\nGrape\nRaspberry\nMelon\nOrange\nLemon\nNuts",
+    symbol = "\xEF\x81\xB7",
+    dir = lvgl.DIR.BOTTOM,
+    text = "SetText",
+    selected = 5,
+    text_font = lvgl.BUILTIN_FONT.MONTSERRAT_20,
+    align = {
+        type = lvgl.ALIGN.BOTTOM_MID,
+        x_ofs = 0,
+        y_ofs = -20,
+    }
+})
+
+
+dd:get("list"):set { text_font = lvgl.Font("montserrat", 24) }
+dd:onevent(lvgl.EVENT.VALUE_CHANGED, function(obj, code)
+    print(obj:get("selected_str") .. ":" .. obj:get("selected"),
+        "dir:" .. obj:get("dir"),
+        "option_index" .. dd:get("option_index", obj:get("selected_str")))
+end)
+
+
+
+lvgl.Timer {
+    period = 1000,
+    cb = function(t)
+        t:delete()
+        dd:open()
+        print("now dd should be opened: " .. (dd:is_open() and "open" or "closed"))
+    end
+}
+
+lvgl.Timer {
+    period = 2000,
+    cb = function(t)
+        t:delete()
+        dd:close()
+        print("now dd should be closed: " .. (dd:is_open() and "open" or "closed"))
+    end
+}
-- 
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