49 Border *
leftTop( std::optional< float > left, std::optional< float > top );
50 Border *
leftBottom( std::optional< float > left, std::optional< float > bottom );
51 Border *
rightTop( std::optional< float > right, std::optional< float > top );
52 Border *
rightBottom( std::optional< float > right, std::optional< float > bottom );
54 Border *
leftRight( std::optional< float > left, std::optional< float > right );
55 Border *
topBottom( std::optional< float > top, std::optional< float > bottom );
56 Border *
frontBack( std::optional< float > front, std::optional< float > back );
65 void inner_layout(
float3 & out_size,
float3 & out_position )
const;