#91 get and set values for all controls/indicators and textbox

graphics/elements/controls/switch_button.lua

@@ -26,9 +26,6 @@ local function switch_button(args)
     -- single line
     args.height = 1
 
-    -- button state (convert nil to false if missing)
-    local state = args.default or false
-
     -- determine widths
     local text_width = string.len(args.text)
     args.width = math.max(text_width + 2, args.min_width)
@@ -36,12 +33,15 @@ local function switch_button(args)
     -- create new graphics element base object
     local e = element.new(args)
 
+    -- button state (convert nil to false if missing)
+    e.value = args.default or false
+
     local h_pad = math.floor((e.frame.w - text_width) / 2)
     local v_pad = math.floor(e.frame.h / 2) + 1
 
     -- show the button state
     local function draw_state()
-        if state then
+        if e.value then
             -- show as pressed
             e.window.setTextColor(args.active_fg_bg.fgd)
             e.window.setBackgroundColor(args.active_fg_bg.bkg)
@@ -64,11 +64,22 @@ local function switch_button(args)
 ---@diagnostic disable-next-line: unused-local
     function e.handle_touch(event)
         -- toggle state
-        state = not state
+        e.value = not e.value
         draw_state()
 
         -- call the touch callback with state
-        args.callback(state)
+        args.callback(e.value)
+    end
+
+    -- set the value
+    ---@param val boolean new value
+    function e.set_value(val)
+        -- set state
+        e.value = val
+        draw_state()
+
+        -- call the touch callback with state
+        args.callback(e.value)
     end
 
     return e.get()