Ahmed Mourad AhmedMourad0

🐧

Farming Penguins

Android Developer

AhmedMourad0 / sticker-immutable.kt

Last active March 1, 2024 16:13

Code snippet for the `Leveraging the Power of Snapshots in Jetpack Compose` Medium article.

AhmedMourad0 / sticker-stable.kt

Last active March 1, 2024 16:14

Code snippet for the `Leveraging the Power of Snapshots in Jetpack Compose` Medium article.

AhmedMourad0 / sticker-board-initial.kt

Last active March 2, 2024 16:49

Code snippet for the `Leveraging the Power of Snapshots in Jetpack Compose` Medium article.

	@Composable
	fun StickerBoard(
	stickers: List<Sticker>,
	modifier: Modifier = Modifier
	) {
	Box(modifier.fillMaxWidth().background(Color.White).clipToBounds()) {
	stickers.forEach { sticker ->
	key(sticker.id) {
	Sticker(sticker)
	}

AhmedMourad0 / stable-sticker-with-type.kt

Last active March 1, 2024 16:11

Code snippet for the `Leveraging the Power of Snapshots in Jetpack Compose` Medium article.

	@Stable
	sealed interface StickerType {
	@Stable
	class Shape(
	shape: androidx.compose.ui.graphics.Shape,
	color: Color,
	borderWidth: Dp,
	borderColor: Color
	) : StickerType {
	var shape by mutableStateOf(shape)

AhmedMourad0 / board-action.kt

Created March 1, 2024 17:14

Code snippet for the `Leveraging the Power of Snapshots in Jetpack Compose` Medium article.

	@Immutable
	sealed interface BoardAction {

	@Immutable
	data class Add(val sticker: Sticker) : BoardAction

	@Immutable
	data class Remove(val id: String) : BoardAction

	@Immutable

AhmedMourad0 / undo-manager-incomplete.kt

Last active March 1, 2024 18:05

Code snippet for the `Leveraging the Power of Snapshots in Jetpack Compose` Medium article.

	@Stable
	class UndoManager(private val stickers: () -> List<Sticker>) {

	private val undoHistory = mutableStateListOf<BoardAction>()
	private val redoHistory = mutableStateListOf<BoardAction>()

	fun register(action: BoardAction) {
	val invertedAction = action.invert(oldSticker = ???)
	undoHistory.add(invertedAction)
	redoHistory.clear()