commonMain.pro.respawn.kmmutils.compose.modifier.Flip.kt Maven / Gradle / Ivy

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package pro.respawn.kmmutils.compose.modifier

import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.scale
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.graphics.drawscope.DrawScope
import androidx.compose.ui.graphics.drawscope.DrawTransform
import androidx.compose.ui.graphics.drawscope.withTransform

/**
 * Defines available modes for the [flip] modifier
 */
public enum class FlipDirection(internal val x: Float, internal val y: Float) {
    Vertical(1f, -1f),
    Horizontal(-1f, 1f)
}

/**
 * Flip this composable using [direction]
 */
public fun Modifier.flip(direction: FlipDirection): Modifier = scale(direction.x, direction.y)

/**
 * Flip this canvas using [direction] and [pivot] point
 */
public fun DrawTransform.flip(direction: FlipDirection?, pivot: Offset = center) {
    direction?.run { scale(x, y, pivot) }
}

/**
 * Create a new draw transform scope for [block], flipping the contents using [direction]]
 */
public inline fun DrawScope.flip(
    direction: FlipDirection?,
    pivot: Offset = center,
    block: DrawScope.() -> Unit
): Unit = withTransform(
    transformBlock = { flip(direction, pivot) },
    drawBlock = block
)