update scroll and helper

druid/base/scroll.lua

@@ -99,10 +99,7 @@ end
 
 
 local function get_zone_center(self)
-	local pos = vmath.vector3(self.pos)
-	pos.x = pos.x + self.center_offset.x
-	pos.y = pos.y + self.center_offset.y
-	return pos
+	return self.pos + self.center_offset
 end
 
 
@@ -257,7 +254,7 @@ end
 
 
 function M.on_input(self, action_id, action)
-	if action_id ~= data.A_TOUCH then
+	if action_id ~= data.ACTION_TOUCH then
 		return false
 	end
 	local inp = self.input
@@ -289,18 +286,21 @@ function M.on_input(self, action_id, action)
 						M.current_scroll = self
 				end
 			end
-			if M.current_scroll == self then
-				add_delta(self, action.dx, action.dy)
-				result = true
-			end
+		end
+	end
+
+	if inp.touch and not action.pressed then
+		if M.current_scroll == self then
+			add_delta(self, action.dx, action.dy)
+			result = true
 		end
 	end
 
 	if action.released then
+		inp.touch = false
+		inp.side = false
 		if M.current_scroll == self then
 			M.current_scroll = nil
-			inp.touch = false
-			inp.side = false
 			result = true
 		end
 		check_threshold(self)
@@ -311,7 +311,7 @@ end
 
 
 --- Start scroll to point (x, y, z)
-function M.scroll_to(self, point)
+function M.scroll_to(self, point, is_instant)
 	local b = self.border
 	local target = vmath.vector3(point)
 	target.x = helper.clamp(point.x - self.center_offset.x, b.x, b.z)
@@ -319,12 +319,18 @@ function M.scroll_to(self, point)
 
 	cancel_animate(self)
 
-	self.animate = true
-	gui.animate(self.node, gui.PROP_POSITION, target, gui.EASING_OUTSINE, settings.ANIM_SPEED, 0, function()
-		self.animate = false
+	self.animate = not is_instant
+
+	if is_instant then
 		self.target = target
 		set_pos(self, target)
-	end)
+	else
+		gui.animate(self.node, gui.PROP_POSITION, target, gui.EASING_OUTSINE, settings.ANIM_SPEED, 0, function()
+			self.animate = false
+			self.target = target
+			set_pos(self, target)
+		end)
+	end
 end
 
 
@@ -384,4 +390,4 @@ function M.set_border(self, border)
 end
 
 
-return M
+return M

druid/data.lua

@@ -1,7 +1,6 @@
 local M = {}
 
--- actions
-
+-- Actions
 M.A_TOUCH = hash("touch")
 M.A_TEXT = hash("text")
 M.A_BACKSPACE = hash("backspace")
@@ -11,21 +10,20 @@ M.A_ANDR_BACK = hash("back")
 M.RELEASED = "released"
 M.PRESSED = "pressed"
 
---- interests
-
+--- Interests
 M.ON_MESSAGE = hash("on_message")
 M.ON_UPDATE = hash("on_update")
 
-	-- input 
+-- Input
 M.ON_SWIPE = hash("on_swipe")
 M.ON_INPUT = hash("on_input")
 
 M.ui_input = {
 	[M.ON_SWIPE] = true,
 	[M.ON_INPUT] = true
-	
 }
-	-- ui messages
+
+-- UI messages
 M.ON_CHANGE_LANGUAGE = hash("on_change_language")
 M.ON_LAYOUT_CHANGED = hash("on_layout_changed")
 

druid/helper.lua

@@ -1,23 +1,70 @@
 local M = {}
 
-function M.centrate_text_with_icon(text_node, icon_node, offset_x)
-	offset_x = offset_x or 0
-	local metr = gui.get_text_metrics_from_node(text_node)
-	local scl = gui.get_scale(text_node).x
-	local pos = gui.get_position(text_node)
-	local scl_i = gui.get_scale(icon_node).x
-	local pos_i = gui.get_position(icon_node)
-	local w = metr.width * scl -- text width
-	local icon_w = gui.get_size(icon_node).x * scl_i -- icon width
-	local width = w + icon_w
+--- Text node or icon node can be nil
+local function get_text_width(text_node)
+	if text_node then
+		local text_metrics = gui.get_text_metrics_from_node(text_node)
+		local text_scale = gui.get_scale(text_node).x
+		return text_metrics.width * text_scale
+	end
 
-	pos.x = -width/2 + w + offset_x
-	gui.set_position(text_node, pos)
-	pos_i.x = width/2 - icon_w + offset_x
-	gui.set_position(icon_node, pos_i)
+	return 0
 end
 
 
+local function get_icon_width(icon_node)
+	if icon_node then
+		local icon_scale_x = gui.get_scale(icon_node).x
+		return gui.get_size(icon_node).x * icon_scale_x -- icon width
+	end
+
+	return 0
+end
+
+
+--- Text node or icon node can be nil
+function M.centrate_text_with_icon(text_node, icon_node, margin)
+	margin = margin or 0
+	local text_width = get_text_width(text_node)
+	local icon_width = get_icon_width(icon_node)
+	local width = text_width + icon_width
+
+	if text_node then
+		local pos = gui.get_position(text_node)
+		pos.x = -width/2 + text_width - margin/2
+		gui.set_position(text_node, pos)
+	end
+
+	if icon_node then
+		local icon_pos = gui.get_position(icon_node)
+		icon_pos.x = width/2 - icon_width + margin/2
+		gui.set_position(icon_node, icon_pos)
+	end
+end
+
+
+--- Icon node or text node can be nil
+function M.centrate_icon_with_text(icon_node, text_node, margin)
+	margin = margin or 0
+	local icon_width = get_icon_width(icon_node)
+	local text_width = get_text_width(text_node)
+	local width = text_width + icon_width
+
+	if text_node then
+		local pos = gui.get_position(text_node)
+		pos.x = width/2 - text_width + margin/2
+		gui.set_position(text_node, pos)
+	end
+
+	if icon_node then
+		local icon_pos = gui.get_position(icon_node)
+		icon_pos.x = -width/2 + icon_width - margin/2
+		gui.set_position(icon_node, icon_pos)
+	end
+end
+
+
+
 local STRING = "string"
 function M.get_node(node_or_name)
 	if type(node_or_name) == STRING then
@@ -96,4 +143,5 @@ function M.get_pivot_offset(pivot)
 	return pivots[pivot]
 end
 
-return M
+
+return M