DK = DK or {}

local draw = draw
local surface = surface
local table = table
local render = render
function DK.Circle( x, y, radius, seg, col )
	local cir = {}

	draw.NoTexture()
	surface.SetDrawColor(col)
	table.insert( cir, { x = x, y = y, u = 0.5, v = 0.5 } )
	for i = 0, seg do
		local a = math.rad( ( i / seg ) * -360 )
		table.insert( cir, { x = x + math.sin( a ) * radius, y = y + math.cos( a ) * radius, u = math.sin( a ) / 2 + 0.5, v = math.cos( a ) / 2 + 0.5 } )
	end

	local a = math.rad( 0 ) -- This is needed for non absolute segment counts
	table.insert( cir, { x = x + math.sin( a ) * radius, y = y + math.cos( a ) * radius, u = math.sin( a ) / 2 + 0.5, v = math.cos( a ) / 2 + 0.5 } )

	surface.DrawPoly( cir )
end
function DK.EdgedBox(x, y, width, height, move, color)
	surface.SetDrawColor( color.r, color.g, color.b, color.a )
	draw.NoTexture()
	surface.DrawPoly({
		{ x = x, y = y+height },
		{ x = x+move, y = y },
		{ x = x+width, y = y },
		{ x = x+width-move, y = y+height }
	})
end
function DK.BluredText(txt, font, x, y, col, alx, aly, blurcol, noshadow)
	if not noshadow then
		draw.SimpleText(txt, font, x+2, y+2, Color(0,0,0,col.a), alx, aly)
	end

	local x1, y1
	if blurcol.a > 0 and col.a > 0 then
		x1, y1 = draw.SimpleText(txt, font.."_Blur", x, y, blurcol, alx, aly)
	end
	local x2, y2 = draw.SimpleText(txt, font, x, y, col, alx, aly)
	x1 = x1 or x2
	y1 = y1 or y2
	return x1, y1
end
function DK.ShadowText(t, f, x, y, c, ax, ay, move)
	move = math.max(move, 1)
	local x1, y1 = draw.SimpleText(t, f, x+move, y+move, color_black, ax, ay)
	draw.SimpleText(t, f, x, y, c, ax, ay)
	return x1, y1
end
local blur = Material( "pp/blurscreen" )
local function drawblur( panel, layers, density, alpha )
	local x, y = panel:LocalToScreen(0, 0)

	surface.SetDrawColor( 255, 255, 255, alpha )
	surface.SetMaterial( blur )

	for i = 1, 3 do
		blur:SetFloat( "$blur", ( i / layers ) * density )
		blur:Recompute()

		render.UpdateScreenEffectTexture()
		surface.DrawTexturedRect( -x, -y, ScrW(), ScrH() )
	end
end
function DK.Derma(par)
	local frm = vgui.Create("DFrame", par)
	frm.Paint = function(self, w, h)
		drawblur( frm, 10, 20, 255 )
		draw.RoundedBox( 0, 0, 0, w, h, Color( 0, 0, 0, 150 ) ) 
		draw.RoundedBox( 0, 0, 0, w, 25, Color( 0, 0, 0, 200 ) ) 
	end
	frm.btnClose.Paint = function(self, w, h)
		draw.RoundedBox( 0, 0, 0, w, h, Color( 200, 0, 0, 150 ) ) 
		draw.SimpleText("X","DermaDefault",w/2,h/2,color_white,1,1)
	end
	frm.btnMaxim.Paint = function(self,w,h) end
	frm.btnMinim.Paint = function(self,w,h) end
	return frm
end