#344 element redraws and shorter assert messages

graphics/elements/textbox.lua

@@ -24,19 +24,20 @@ local TEXT_ALIGN = core.TEXT_ALIGN
 ---@param args textbox_args
 ---@return graphics_element element, element_id id
 local function textbox(args)
-    assert(type(args.text) == "string", "graphics.elements.textbox: text is a required field")
+    assert(type(args.text) == "string", "textbox: text is a required field")
 
     -- create new graphics element base object
     local e = element.new(args)
 
+    e.value = args.text
+
     local alignment = args.alignment or TEXT_ALIGN.LEFT
 
     -- draw textbox
+    function e.redraw()
+        e.window.clear()
 
-    local function display_text(text)
-        e.value = text
-
-        local lines = util.strwrap(text, e.frame.w)
+        local lines = util.strwrap(e.value, e.frame.w)
 
         for i = 1, #lines do
             if i > e.frame.h then break end
@@ -56,15 +57,16 @@ local function textbox(args)
         end
     end
 
-    display_text(args.text)
-
     -- set the string value and re-draw the text
     ---@param val string value
     function e.set_value(val)
-        e.window.clear()
-        display_text(val)
+        e.value = val
+        e.redraw()
     end
 
+    -- initial draw
+    e.redraw()
+
     return e.complete()
 end