Add draw.ComplexRoundedBox

[alexsnowrun]

Description

Draws a rounded rectangle. This function allows you to set a specific rounding radius for each corner of a rectangle.

Arguments

1. number x The x coordinate of the top left of the rectangle.
2. number y The y coordinate of the top left of the rectangle.
3. number width The width of the rectangle.
4. number height The height of the rectangle.
5. table color The color to fill the rectangle with.
6. number roundTopLeft = 0 Rounding radius for top left corner.
7. number roundTopRight = 0 Rounding radius for top right corner.
8. number roundBottomLeft = 0 Rounding radius for bottom left corner.
9. number roundBottomRight = 0 Rounding radius for bottom right corner.

Demo

I hope this feature will be useful for UI coders.

[Kefta]

Just support nil for bordersize in RoundedBoxEx. No need for more aliases.

[alexsnowrun]

Just support nil for bordersize in RoundedBoxEx. No need for more aliases.

Do you mean something like this?

function RoundedBoxEx( bordersize, x, y, w, h, color, tl, tr, bl, br )

	surface.SetDrawColor( color.r, color.g, color.b, color.a )

	if bordersize then
		bordersize = math.min( math.Round( bordersize ), math.floor( w * 0.5 ), math.floor( h * 0.5 ) )
		tl = tl and bordersize or 0
		tr = tr and bordersize or 0
		bl = bl and bordersize or 0
		br = br and bordersize or 0
	else
		local half_w, half_h = math.floor( w * 0.5 ), math.floor( h * 0.5 )
		tl = tl and math.min( math.Round( tl ), half_w, half_h ) or 0
		tr = tr and math.min( math.Round( tr ), half_w, half_h ) or 0
		bl = bl and math.min( math.Round( bl ), half_w, half_h ) or 0
		br = br and math.min( math.Round( br ), half_w, half_h ) or 0
		
		bordersize = math.max( tl, tr, br, bl )
	end

	-- Do not waste performance if they don't want rounded corners
	if ( tl + tr + bl + br ) <= 0 then
		surface.DrawRect( x, y, w, h )
		return
	end

	x = math.Round( x )
	y = math.Round( y )
	w = math.Round( w )
	h = math.Round( h )

	surface.DrawRect( x + bl, y + tl, w - bl - tr, h - tl - br )

	local tex = tex_corner8
	if ( bordersize > 8 ) then tex = tex_corner16 end
	if ( bordersize > 16 ) then tex = tex_corner32 end
	if ( bordersize > 32 ) then tex = tex_corner64 end
	if ( bordersize > 64 ) then tex = tex_corner512 end

	surface.SetTexture( tex )

	if tl > 0 then
		surface.DrawTexturedRectUV( x, y, tl, tl, 0, 0, 1, 1 )
		surface.DrawRect( x + tl, y, w - tl - tr, tl )
	end

	if tr > 0 then
		surface.DrawTexturedRectUV( x + w - tr, y, tr, tr, 1, 0, 0, 1 )
		surface.DrawRect( x + w - tr, y + tr, tr, h - br - tr )
	end

	if bl > 0 then
		surface.DrawTexturedRectUV( x, y + h - bl, bl, bl, 0, 1, 1, 0 )
		surface.DrawRect( x, y + tl, bl, h - tl - bl )
	end

	if br > 0 then
		surface.DrawTexturedRectUV( x + w - br, y + h - br, br, br, 1, 1, 0, 0 )
		surface.DrawRect( x + bl, y + h - br, w - bl - br, br )
	end

end

[Kefta]

Yeah, use a bordersize == nil check though so false values will still error.

[alexsnowrun]

Yeah, use a bordersize == nil check though so false values will still error.

false works the same as nil without additional checks. With any of these values, the function will use arguments for each corner separately.

[Kefta]

That's the point - false should error. Only numerical or nil values should operate without erroring.

[robotboy655]

I agree with @Kefta , it could be added as an option to RoundedBoxEx in the way described.