26 lines
888 B
Go
26 lines
888 B
Go
package tomo
|
|
|
|
import "image"
|
|
|
|
// LayoutEntry associates an element with layout and positioning information so
|
|
// it can be arranged by a Layout.
|
|
type LayoutEntry struct {
|
|
Element
|
|
Position image.Point
|
|
Expand bool
|
|
}
|
|
|
|
// 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, width, height int)
|
|
|
|
// MinimumSize returns the minimum width and height that the layout
|
|
// needs to properly arrange the given slice of layout entries.
|
|
MinimumSize (entries []LayoutEntry) (width, height int)
|
|
}
|