37 lines
1019 B
Go
37 lines
1019 B
Go
|
package ui
|
||
|
|
|
||
|
|
// Recursively replaces nils with stretchy empty spaces and changes the orientation
|
||
|
|
// of inner stack so they are perpenticular to each other.
|
||
|
|
func resetControls(parent *Stack) {
|
||
|
|
for i, control := range parent.controls {
|
||
|
|
switch control.(type) {
|
||
|
|
case *Stack:
|
||
|
|
stack := control.(*Stack)
|
||
|
|
stack.orientation = !parent.orientation
|
||
|
|
resetControls(stack)
|
||
|
|
case nil:
|
||
|
|
emptySpace := newStack(horizontal)
|
||
|
|
parent.controls[i] = emptySpace
|
||
|
|
parent.stretchy[i] = true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Creates a new Stack from the given controls. The topmost Stack will have
|
||
|
|
// vertical orientation and margin borders, with each nested stack being
|
||
|
|
// oriented oppositely. Controls are displayed with a default padding
|
||
|
|
// between them.
|
||
|
|
func Layout(controls ...Control) *Stack {
|
||
|
|
stack := &Stack{
|
||
|
|
orientation: vertical,
|
||
|
|
controls: controls,
|
||
|
|
stretchy: make([]bool, len(controls)),
|
||
|
|
width: make([]int, len(controls)),
|
||
|
|
height: make([]int, len(controls)),
|
||
|
|
}
|
||
|
|
|
||
|
|
resetControls(stack)
|
||
|
|
|
||
|
|
return stack
|
||
|
|
}
|