package ui

import (
	"fyne.io/fyne/v2"
)

type minWidthLayout struct {
	width float32
}

func (l minWidthLayout) MinSize(objects []fyne.CanvasObject) fyne.Size {
	width := l.width
	var height float32
	for _, object := range objects {
		if !object.Visible() {
			continue
		}
		min := object.MinSize()
		if min.Width > width {
			width = min.Width
		}
		if min.Height > height {
			height = min.Height
		}
	}
	return fyne.NewSize(width, height)
}

func (l minWidthLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
	for _, object := range objects {
		if !object.Visible() {
			continue
		}
		object.Move(fyne.NewPos(0, 0))
		object.Resize(size)
	}
}

// fixedHeightLayout forces its contents to a fixed height while leaving the
// width to the parent container. It is used to reserve a stable amount of space
// for the activity panel so a neighbouring widget can absorb the rest.
type fixedHeightLayout struct {
	height float32
}

func (l fixedHeightLayout) MinSize(objects []fyne.CanvasObject) fyne.Size {
	var width float32
	for _, object := range objects {
		if !object.Visible() {
			continue
		}
		if min := object.MinSize(); min.Width > width {
			width = min.Width
		}
	}
	return fyne.NewSize(width, l.height)
}

func (l fixedHeightLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
	for _, object := range objects {
		if !object.Visible() {
			continue
		}
		object.Move(fyne.NewPos(0, 0))
		object.Resize(fyne.NewSize(size.Width, l.height))
	}
}