Raygui tree view.

examples/raygui_extensions/tree_item.lua

@@ -0,0 +1,96 @@
+local TreeItem = {}
+TreeItem.__index = TreeItem
+
+function TreeItem:new( bounds, text, callbacks, styles, tooltip )
+	local object = setmetatable( {}, self )
+	object._gui = nil
+
+	object.spacing = 4 -- Between controls.
+
+	object.bounds = bounds:clone()
+	object.text = text
+	object.callbacks = callbacks -- toggle, open.
+
+	object.controls = {}
+	
+	object.active = false
+	object.open = false -- Show controls.
+	object.visible = true
+	object.disabled = false
+	object.styles = styles
+	object.tooltip = tooltip
+
+	object._depth = 0
+	object._indentation = 0
+	object._id = 0 -- Id in treeView.
+	object._parent = nil
+	object._childId = 0 -- Id in parent controls.
+
+	return object
+end
+
+function TreeItem:update()
+    return RL.CheckCollisionPointRec( RL.GetMousePosition(), self.bounds )
+end
+
+function TreeItem:setOpenIcon()
+	if self.open then
+		return RL.GuiIconText( 120, "" )
+	else
+		return RL.GuiIconText( 119, "" )
+	end
+end
+
+function TreeItem:draw()
+	local buttonRect = Rect:new()
+	local hasContainer = 0 < #self.controls
+	local lineCol = RL.GetColor( RL.GuiGetStyle( RL.DEFAULT, RL.LINE_COLOR ) )
+
+	if hasContainer then
+		buttonRect:set( self.bounds.x, self.bounds.y, self.bounds.height, self.bounds.height )
+	end
+	-- Draw indentation lines.
+	for i = 0, self._depth - 1 do
+		RL.DrawRectangle( {
+			self.bounds.x - i * self._indentation - self._indentation / 2,
+			self.bounds.y - self.spacing,
+			1,
+			self.bounds.height + self.spacing * 2
+		}, lineCol )
+	end
+
+	local toggleRect = Rect:new( 
+		self.bounds.x + buttonRect.width,
+		self.bounds.y,
+		self.bounds.width - buttonRect.width,
+		self.bounds.height
+	)
+	local oldActive = self.active
+	_, self.active = RL.GuiToggle( toggleRect, self.text, self.active )
+
+	if self.callbacks.toggle and oldActive ~= self.active then
+		self.callbacks.toggle( self )
+	end
+
+	if hasContainer then
+		local pressed = RL.GuiLabelButton( buttonRect, self:setOpenIcon() )
+
+		if self.callbacks.open and 0 < pressed then
+			self.open = not self.open
+			self.callbacks.open( self )
+		end
+	end
+end
+
+function TreeItem:setPosition( pos )
+	self.bounds.x = pos.x
+	self.bounds.y = pos.y
+end
+
+function TreeItem:register( gui )
+	function gui:TreeItem( bounds, text, callbacks, styles, tooltip )
+		return self:addControl( TreeItem:new( bounds, text, callbacks, styles, tooltip ) )
+	end
+end
+
+return TreeItem