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lua/vgui/prop_entity.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+
+--
+-- prop_generic is the base for all other properties.
+-- All the business should be done in :Setup using inline functions.
+-- So when you derive from this class - you should ideally only override Setup.
+--
+
+DEFINE_BASECLASS( "DProperty_Generic" )
+
+local PANEL = {}
+
+function PANEL:Init()
+end
+
+function PANEL:Setup( vars )
+
+	vars = vars or {}
+
+	BaseClass.Setup( self, vars )
+
+	local btn = self:Add( "DButton" )
+	btn:Dock( LEFT )
+	btn:DockMargin( 0, 1, 4, 1 )
+	btn:SetWide( 24 )
+	btn:SetText( "" )
+	btn:SetImage( "icon16/wand.png" )
+
+	-- Use the world picked to select an entity
+	btn.DoClick = function( s )
+
+		-- Make it look different when selecting things
+		s:SetEnabled( false )
+
+		util.worldpicker.Start( function( tr )
+
+			self:SetEnabled( true )
+
+			if ( !IsValid( tr.Entity ) ) then return end
+
+			-- TODO: Maybe this should be EntSerial()?
+			self:ValueChanged( tr.Entity:EntIndex(), true )
+
+		end )
+
+	end
+
+	-- Enabled/disabled support
+	self.IsEnabled = function( slf )
+		return btn:IsEnabled()
+	end
+	local oldSetEnabled = self.SetEnabled
+	self.SetEnabled = function( slf, b )
+		btn:SetEnabled( b )
+		oldSetEnabled( b ) -- Also handle the text entry
+	end
+
+end
+
+derma.DefineControl( "DProperty_Entity", "", PANEL, "DProperty_Generic" )