package ui

import "git.bullercodeworks.com/brian/wandle"

/*
ViewPort helps keep track of what's being displayed on the screen
It matches the widdle interface:
git.bullercodeworks.com/brian/widdles/widdle.go
*/
type ViewPort struct {
	x, y      int
	width     int
	height    int
	scrollRow int
	active    bool

	firstRow int
	buffer   []string
}

func (w *ViewPort) Init() wandle.Cmd {
	return nil
}

func (w *ViewPort) Update(wandle.Msg) wandle.Cmd {
	return nil
}
func (w *ViewPort) View(style wandle.Style) {}
func (w *ViewPort) IsActive() bool          { return w.active }
func (w *ViewPort) SetActive(b bool)        { w.active = b }
func (w *ViewPort) Focusable() bool         { return true }
func (w *ViewPort) SetX(x int)              { w.x = x }
func (w *ViewPort) SetY(y int)              { w.y = y }
func (w *ViewPort) GetX() int               { return w.x }
func (w *ViewPort) GetY() int               { return w.y }
func (w *ViewPort) GetHeight() int          { return w.height }
func (w *ViewPort) GetWidth() int           { return w.width }

func (w *ViewPort) SetBuffer(buffer []string) { w.buffer = buffer }