package layouts import "image" import "git.tebibyte.media/sashakoshka/tomo/elements" // LayoutEntry associates an element with layout and positioning information so // it can be arranged by a Layout. type LayoutEntry struct { elements.Element Bounds image.Rectangle Expand bool } // TODO: have layouts take in artist.Inset for margin and padding // TODO: create a layout that only displays the first element and full screen. // basically a blank layout for containers that only ever have one element. // Layout is capable of arranging elements within a container. It is also able // to determine the minimum amount of room it needs to do so. type Layout interface { // Arrange takes in a slice of entries and a bounding width and height, // and changes the position of the entiries in the slice so that they // are properly laid out. The given width and height should not be less // than what is returned by MinimumSize. Arrange ( entries []LayoutEntry, margin, padding int, bounds image.Rectangle, ) // MinimumSize returns the minimum width and height that the layout // needs to properly arrange the given slice of layout entries. MinimumSize ( entries []LayoutEntry, margin, padding int, ) ( width, height int, ) // FlexibleHeightFor Returns the minimum height the layout needs to lay // out the specified elements at the given width, taking into account // flexible elements. FlexibleHeightFor ( entries []LayoutEntry, margin int, padding int, squeeze int, ) ( height int, ) }