Rename SimpleGraphicsLayerScope with InverseLayerScope

backdrop/src/main/java/com/kyant/backdrop/Backdrop.kt

@@ -39,7 +39,7 @@ class Backdrop internal constructor(
 
     internal var backdropCoordinates: LayoutCoordinates? by mutableStateOf(null)
 
-    private var layerScope: SimpleGraphicsLayerScope? = null
+    private var inverseLayerScope: InverseLayerScope? = null
 
     internal fun DrawScope.drawBackdrop(
         coordinates: LayoutCoordinates,
@@ -50,8 +50,8 @@ class Backdrop internal constructor(
         val layerBlock = layerBlock
         if (layerBlock != null) {
             withTransform({
-                val layerScope = layerScope ?: SimpleGraphicsLayerScope().also { layerScope = it }
-                with(layerScope) { inverseTransform(this@drawBackdrop, layerBlock) }
+                val inverseLayerScope = inverseLayerScope ?: InverseLayerScope().also { inverseLayerScope = it }
+                with(inverseLayerScope) { inverseTransform(scope = this@drawBackdrop, layerBlock = layerBlock) }
                 translate(-offset.x, -offset.y)
             }) {
                 drawLayer(graphicsLayer)

backdrop/src/main/java/com/kyant/backdrop/ContentBackdropModifier.kt

@@ -174,7 +174,7 @@ private class ContentBackdropNode(
         compositingStrategy = androidx.compose.ui.graphics.CompositingStrategy.Offscreen
     }
 
-    private var layerScope: SimpleGraphicsLayerScope? = null
+    private var inverseLayerScope: InverseLayerScope? = null
 
     override fun MeasureScope.measure(
         measurable: Measurable,
@@ -205,8 +205,8 @@ private class ContentBackdropNode(
             val layerBlock = layerBlock
             if (layerBlock != null) {
                 withTransform({
-                    val layerScope = layerScope ?: SimpleGraphicsLayerScope().also { layerScope = it }
-                    with(layerScope) { inverseTransform(this@draw, layerBlock) }
+                    val inverseLayerScope = inverseLayerScope ?: InverseLayerScope().also { inverseLayerScope = it }
+                    with(inverseLayerScope) { inverseTransform(scope = this@draw, layerBlock = layerBlock) }
                 }) {
                     drawLayer(layer)
                 }

backdrop/src/main/java/com/kyant/backdrop/InverseLayerScope.kt

@@ -18,7 +18,7 @@ import kotlin.math.PI
 import kotlin.math.cos
 import kotlin.math.sin
 
-internal class SimpleGraphicsLayerScope : GraphicsLayerScope {
+internal class InverseLayerScope : GraphicsLayerScope {
 
     override var size: Size = Size.Unspecified
     override var density: Float = 1f
@@ -50,7 +50,7 @@ internal class SimpleGraphicsLayerScope : GraphicsLayerScope {
         scope: DrawScope,
         layerBlock: GraphicsLayerScope.() -> Unit
     ) {
-        this@SimpleGraphicsLayerScope.size = scope.size
+        this@InverseLayerScope.size = scope.size
         density = scope.density
         fontScale = scope.fontScale
 
@@ -88,8 +88,8 @@ internal class SimpleGraphicsLayerScope : GraphicsLayerScope {
         val a11 = rcz * scaleY
 
         val det = a00 * a11 - a01 * a10
-        if (det == 0.0f) return
-        val invDet = 1.0f / det
+        if (det == 0f) return
+        val invDet = 1f / det
         matrix[0, 0] = a11 * invDet
         matrix[0, 1] = -a01 * invDet
         matrix[1, 0] = -a10 * invDet