commonMain.org.jetbrains.skia.Matrix22.kt Maven / Gradle / Ivy
package org.jetbrains.skia
import org.jetbrains.skia.impl.InteropPointer
import org.jetbrains.skia.impl.InteropScope
import org.jetbrains.skia.impl.withResult
/**
* 2x2 matrix.
*/
class Matrix22(vararg mat: Float) {
/**
* Matrix elements are in row-major order.
*/
val mat: FloatArray
override fun equals(other: Any?): Boolean {
if (other === this) return true
if (other !is Matrix22) return false
return mat.contentEquals(other.mat)
}
override fun hashCode(): Int {
val PRIME = 59
var result = 1
result = result * PRIME + mat.contentHashCode()
return result
}
override fun toString(): String {
return "Matrix22(_mat=$mat)"
}
companion object {
val IDENTITY = Matrix22(1f, 0f, 0f, 1f)
internal fun fromInteropPointer(block: InteropScope.(InteropPointer) -> Unit): Matrix22 {
val result = withResult(FloatArray(4), block)
return Matrix22(*result)
}
}
/**
* The constructor parameters are in row-major order.
*/
init {
require(mat.size == 4) { "Expected 4 elements, got ${mat.size}" }
this.mat = mat
}
}