#107 Better scale text adjust by height for multiline text nodes

docs_md/changelog.md

@@ -247,3 +247,4 @@ Have a good day.
 	- The `check_function` should return _true_ of _false_. If true - button can be clicked
 	- The `failure_callback`will be called if `check_function` will return false. It's callback for you if button is not available
 	- Example with `set_check_function` exists in general:buttons example collection
+- **#107** Better scale text adjust by height for multiline text nodes (but still not perfect)

druid/base/text.lua

@@ -78,19 +78,21 @@ local function update_text_area_size(self)
 	local max_height = self.text_area.y
 
 	local metrics = gui.get_text_metrics_from_node(self.node)
-	local cur_scale = gui.get_scale(self.node)
 
 	local scale_modifier = max_width / metrics.width
 	scale_modifier = math.min(scale_modifier, self.start_scale.x)
 
-	local scale_modifier_height = max_height / metrics.height
+	if self:is_multiline() then
-	scale_modifier = math.min(scale_modifier, scale_modifier_height)
+		local max_text_area_square = max_width * max_height
+		local cur_text_area_square = metrics.height * metrics.width * self.start_scale.x
+		scale_modifier = self.start_scale.x * math.sqrt(max_text_area_square / cur_text_area_square)
+	end
 
 	if self._minimal_scale then
 		scale_modifier = math.max(scale_modifier, self._minimal_scale)
 	end
 
-	local new_scale = vmath.vector3(scale_modifier, scale_modifier, cur_scale.z)
+	local new_scale = vmath.vector3(scale_modifier, scale_modifier, self.start_scale.z)
 	gui.set_scale(self.node, new_scale)
 	self.scale = new_scale
 

example/examples/texts/texts_general/texts_general.gui_script

@@ -35,12 +35,12 @@ local function setup_texts(self)
 		end
 	end)
 
-	timer.delay(0.2, true, function()
+	timer.delay(0.3, true, function()
 		big_text = big_text .. " m a x"
 		width:set_to(big_text)
 		height:set_to(big_text)
 
-		if #big_text > 50 then
+		if #big_text > 120 then
 			big_text = "Check max size"
 		end
 	end)