TicketShapeExtension.kt

fun Modifier.ticketBorder(
    cornerTopStart: Dp? = null,
    cornerTopEnd: Dp? = null,
    cornerBottomEnd: Dp? = null,
    cornerBottomStart: Dp? = null,
    strokeWidth: Dp = 1.dp,
    color: Color,
) = composed(
    factory = {
        with(LocalDensity.current) {
            val cornerTopStartPx = cornerTopStart?.toPx()
            val cornerTopEndPx = cornerTopEnd?.toPx()
            val cornerBottomEndPx = cornerBottomEnd?.toPx()
            val cornerBottomStartPx = cornerBottomStart?.toPx()
            val strokeWidthPx = strokeWidth.toPx()
            val halfStrokeWidthPx = strokeWidthPx / 2
            val pathEffect = PathEffect.dashPathEffect(floatArrayOf(10f, 10f))

            Modifier.drawBehind {
                val width = size.width
                val height = size.height

                // top start
                cornerTopStartPx?.let {
                    drawArc(
                        color = color,
                        startAngle = 0f,
                        sweepAngle = 90f,
                        size = Size(height = it, width = it),
                        topLeft = Offset(x = -it / 2, y = -it / 2),
                        useCenter = false,
                        style = Stroke(width = strokeWidthPx, pathEffect = pathEffect)
                    )
                }
                // top line
                drawLine(
                    color = color,
                    strokeWidth = strokeWidthPx,
                    pathEffect = pathEffect,
                    start = Offset(
                        x = (cornerTopStartPx ?: 0f) / 2f,
                        y = halfStrokeWidthPx
                    ),
                    end = Offset(
                        x = width - (cornerTopEndPx ?: 0f) / 2f,
                        y = halfStrokeWidthPx
                    )
                )
                // top end
                cornerTopEndPx?.let {
                    drawArc(
                        color = color,
                        startAngle = 90f,
                        sweepAngle = 90f,
                        size = Size(height = it, width = it),
                        useCenter = false,
                        topLeft = Offset(x = width - it + it / 2, y = -it / 2),
                        style = Stroke(width = strokeWidthPx, pathEffect = pathEffect)
                    )
                }
                // end line
                drawLine(
                    color = color,
                    strokeWidth = strokeWidthPx,
                    pathEffect = pathEffect,
                    start = Offset(
                        x = width - halfStrokeWidthPx,
                        y = (cornerTopEndPx ?: 0f) / 2
                    ),
                    end = Offset(
                        x = width - halfStrokeWidthPx,
                        y = height - (cornerBottomEndPx ?: 0f) / 2
                    )
                )
                // bottom end
                cornerBottomEndPx?.let {
                    drawArc(
                        color = color,
                        startAngle = 180f,
                        sweepAngle = 90f,
                        size = Size(height = it, width = it),
                        useCenter = false,
                        topLeft = Offset(x = width - it + it / 2, y = height - it / 2),
                        style = Stroke(width = strokeWidthPx, pathEffect = pathEffect)
                    )
                }
                // bottom line
                drawLine(
                    color = color,
                    strokeWidth = strokeWidthPx,
                    pathEffect = pathEffect,
                    start = Offset(
                        x = (cornerBottomStartPx ?: 0f) / 2f,
                        y = height - halfStrokeWidthPx
                    ),
                    end = Offset(
                        x = width - (cornerBottomEndPx ?: 0f) / 2f,
                        y = height - halfStrokeWidthPx
                    )
                )
                // bottom start
                cornerBottomStartPx?.let {
                    drawArc(
                        color = color,
                        startAngle = 270f,
                        sweepAngle = 90f,
                        size = Size(height = it, width = it),
                        useCenter = false,
                        topLeft = Offset(x = -it / 2, y = height - it / 2),
                        style = Stroke(width = strokeWidthPx, pathEffect = pathEffect)
                    )
                }
                // start line
                drawLine(
                    color = color,
                    strokeWidth = strokeWidthPx,
                    pathEffect = pathEffect,
                    start = Offset(
                        x = halfStrokeWidthPx,
                        y = (cornerTopStartPx ?: 0f) / 2
                    ),
                    end = Offset(
                        x = halfStrokeWidthPx,
                        y = height - (cornerBottomStartPx ?: 0f) / 2
                    )
                )
            }
        }
    }
)