Moved terminal stuff to a separate repository

elements/grid.go

@@ -1,167 +0,0 @@
-package elements
-
-import "image"
-import "golang.org/x/image/font"
-import "git.tebibyte.media/sashakoshka/tomo"
-import "git.tebibyte.media/sashakoshka/tomo/input"
-import "git.tebibyte.media/sashakoshka/tomo/default/theme"
-import "git.tebibyte.media/sashakoshka/tomo/default/config"
-// import "git.tebibyte.media/sashakoshka/tomo/textdraw"
-import "git.tebibyte.media/sashakoshka/tomo/elements/core"
-
-type gridCell struct {
-	rune
-	tomo.FontStyle
-	background tomo.Color
-	foreground tomo.Color
-	clean bool
-}
-
-func (cell *gridCell) initColor () {
-	cell.background = tomo.ColorBackground
-	cell.foreground = tomo.ColorForeground
-}
-
-type gridBuffer struct {
-	cells  []gridCell
-	stride int
-}
-
-// Grid is an array of monospaced character cells. Each one has a foreground and
-// background color. It satisfies io.Writer and can be fed text with ANSI escape
-// codes.
-type Grid struct {
-	*core.Core
-	*core.FocusableCore
-	core core.CoreControl
-	
-	cells      []gridCell
-	stride     int
-	cellWidth  int
-	cellHeight int
-
-	cursor image.Point
-
-	face font.Face
-	config config.Wrapped
-	theme  theme.Wrapped
-	
-	onResize func ()
-}
-
-func NewGrid () (element *Grid) {
-	element = &Grid { }
-	element.theme.Case = tomo.C("tomo", "grid")
-	element.Core, element.core = core.NewCore(element, element.drawAndPush)
-	element.updateFont()
-	element.updateMinimumSize()
-	return
-}
-
-func (element *Grid) OnResize (callback func ()) {
-	element.onResize = callback
-}
-
-func (element *Grid) Write (data []byte) (wrote int, err error) {
-	// TODO process ansi escape codes etx
-}
-
-func (element *Grid) HandleMouseDown (x, y int, button input.Button) {
-	
-}
-
-func (element *Grid) HandleMouseUp (x, y int, button input.Button) {
-	
-}
-
-func (element *Grid) HandleKeyDown (key input.Key, modifiers input.Modifiers) {
-	// TODO we need to grab shift ctrl c for copying text
-}
-
-func (element *Grid) HandleKeyUp(key input.Key, modifiers input.Modifiers) { }
-
-// SetTheme sets the element's theme.
-func (element *Grid) SetTheme (new tomo.Theme) {
-	if new == element.theme.Theme { return }
-	element.theme.Theme = new
-	element.updateFont()
-	element.updateMinimumSize()
-	element.drawAndPush()
-}
-
-// SetConfig sets the element's configuration.
-func (element *Grid) SetConfig (new tomo.Config) {
-	if new == element.config.Config { return }
-	element.config.Config = new
-	element.updateMinimumSize()
-	element.drawAndPush()
-}
-
-func (element *Grid) alloc () bool {
-	bounds := element.Bounds()
-	width  := bounds.Dx() / element.cellWidth
-	height := bounds.Dy() / element.cellHeight
-	unchanged :=
-		width  == element.stride &&
-		height == len(element.cells) / element.stride
-	if unchanged { return false }
-
-	oldCells  := element.cells
-	oldWidth  := element.stride
-	oldHeight := len(element.cells) / element.stride
-	heightLarger := height < oldHeight
-	
-	element.stride = width
-	element.cells  = make([]gridCell, width * height)
-	
-	// TODO: attempt to wrap text?
-
-	if heightLarger {
-	for index := range element.cells[oldHeight * width:] {
-		element.cells[index].initColor()
-	}}
-
-	commonHeight := height
-	if heightLarger { commonHeight = oldHeight }
-	for index := range element.cells[:commonHeight * width] {
-		x := index % width
-		if x < oldWidth {
-			element.cells[index] = oldCells[x + index / oldWidth]
-		} else {
-			element.cells[index].initColor()
-		}
-	}
-
-	if element.onResize != nil { element.onResize() }
-	return true
-}
-
-func (element *Grid) updateFont () {
-	element.face = element.theme.FontFace (
-		tomo.FontStyleMonospace,
-		tomo.FontSizeNormal)
-	emSpace, _ := element.face.GlyphAdvance('M')
-	metrics    := element.face.Metrics()
-	element.cellWidth  = emSpace.Round()
-	element.cellHeight = metrics.Height.Round()
-}
-
-func (element *Grid) updateMinimumSize () {
-	element.core.SetMinimumSize(element.cellWidth, element.cellHeight)
-}
-
-func (element *Grid) state () tomo.State {
-	return tomo.State {
-		
-	}
-}
-
-func (element *Grid) drawAndPush () {
-	if element.core.HasImage () {
-		element.core.DamageRegion(element.draw(true))
-	}
-}
-
-func (element *Grid) draw (force bool) image.Rectangle {
-	
-}