Ticker - Ticker Board

ticker_board.kt

@Composable
fun TickerBoard(
    // 1
    text: String,
    // 2
    numColumns: Int,
    // 3
    numRows: Int,
    modifier: Modifier = Modifier,
    textColor: Color = Color.White,
    backgroundColor: Color = Color.Black,
    fontSize: TextUnit = 96.sp,
    horizontalArrangement: Arrangement.Horizontal = Arrangement.spacedBy(8.dp),
    verticalArrangement: Arrangement.Vertical = Arrangement.spacedBy(8.dp),
) {
    // 4
    val padded = text.padEnd(numColumns * numRows, ' ')
    // 5
    Column(
        modifier = modifier,
        verticalArrangement = verticalArrangement,
    ) {
        // 6
        repeat(numRows) { row ->
            TickerRow(
                text = padded.substring(startIndex = row * numColumns),
                numCells = numColumns,
                horizontalArrangement = horizontalArrangement,
                textColor = textColor,
                backgroundColor = backgroundColor,
                fontSize = fontSize,
            )
        }
    }
}