Added interface ClipRectangle.

samples/SkijaInjectSample/src/main/kotlin/SkijaInjectSample/SwingSkia.kt

 package SkijaInjectSample
 
+import java.awt.BorderLayout
 import java.awt.Color
 import java.awt.Dimension
-import java.awt.BorderLayout
+import java.awt.event.ComponentAdapter
+import java.awt.event.ComponentEvent
 import java.awt.event.KeyEvent
 import java.awt.event.MouseEvent
 import java.awt.event.MouseMotionAdapter
@@ -14,6 +16,7 @@ import javax.swing.event.MouseInputAdapter
 import javax.swing.WindowConstants
 import org.jetbrains.skiko.SkiaPanel
 
+
 fun Button(text: String): JButton {
     val btn = JButton(text)
     btn.setPreferredSize(Dimension(100, 100))
@@ -36,12 +39,10 @@ fun SwingSkia() {
 
     val btnPanelOK = JPanel()
     btnPanelOK.setLayout(BorderLayout(0, 0))
-    btnPanelOK.setBounds(50, 50, 200, 40)
     btnPanelOK.setBackground(Color.white)
     btnPanelOK.add(JButton("OK"))
 
     val btnCancel = JButton("Cancel")
-    btnCancel.setBounds(300, 50, 200, 40)
 
     panel.add(btnPanelOK)
     panel.add(btnCancel)
@@ -52,6 +53,16 @@ fun SwingSkia() {
     var mouseX = 0
     var mouseY = 0
 
+    panel.addComponentListener(object : ComponentAdapter() {
+        override fun componentResized(e: ComponentEvent) {
+            btnPanelOK.setBounds(panel.width - 200, panel.height - 100, 200, 40)
+            btnCancel.setBounds(panel.width - 200, panel.height - 50, 200, 40)
+            panel.invalidate()
+            panel.validate()
+            panel.repaint()
+        }
+    })
+
     panel.layer.renderer = Renderer { renderer, w, h -> displayScene(renderer, w, h, mouseX, mouseY, state) }
 
     panel.layer.addMouseMotionListener(object : MouseMotionAdapter() {

skiko/src/jvmMain/kotlin/org/jetbrains/skiko/ClipRectangle.kt

+package org.jetbrains.skiko
+
+import java.awt.Component
+
+interface ClipRectangle {
+    val x: Float
+    val y: Float
+    val width: Float
+    val height: Float
+}
+
+class ClipComponent(val component: Component) : ClipRectangle {
+    override val x: Float
+        get() = component.x.toFloat()
+    override val y: Float
+        get() = component.y.toFloat()
+    override val width: Float
+        get() = component.width.toFloat()
+    override val height: Float
+        get() = component.height.toFloat()
+}
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skiko/SkiaLayer.kt

@@ -36,7 +36,7 @@ open class SkiaLayer() : HardwareLayer() {
     open val api: GraphicsApi = GraphicsApi.OPENGL
 
     var renderer: SkiaRenderer? = null
-    val clipComponets = mutableListOf<Component>()
+    val clipComponets = mutableListOf<ClipRectangle>()
 
     private val skijaState = SkijaState()
     protected var inited: Boolean = false
@@ -77,14 +77,14 @@ open class SkiaLayer() : HardwareLayer() {
         }
     }
 
-    private fun clipRectBy(component: Component) {
+    private fun clipRectBy(rectangle: ClipRectangle) {
         skijaState.apply {
             canvas!!.clipRect(
                 Rect.makeLTRB(
-                    component.x.toFloat(),
-                    component.y.toFloat(),
-                    component.x.toFloat() + component.width.toFloat(),
-                    component.y.toFloat() + component.height.toFloat()
+                    rectangle.x,
+                    rectangle.y,
+                    rectangle.x + rectangle.width,
+                    rectangle.y + rectangle.height
                 ),
                 ClipMode.DIFFERENCE,
                 true

skiko/src/jvmMain/kotlin/org/jetbrains/skiko/SkiaPanel.kt

@@ -16,7 +16,7 @@ open class SkiaPanel: JLayeredPane {
     }
 
     override fun add(component: Component): Component {
-        layer.clipComponets.add(component)
+        layer.clipComponets.add(ClipComponent(component))
         return super.add(component, Integer.valueOf(0))
     }
 

skiko/src/jvmMain/objectiveC/macos/drawlayer.m

@@ -284,9 +284,6 @@ JNIEXPORT void JNICALL Java_org_jetbrains_skiko_HardwareLayer_updateLayer(JNIEnv
         dsi_mac = ( __bridge NSObject<JAWT_SurfaceLayers> *) dsi->platformInfo;
 
         LayerHandler *layersSet = [[LayerHandler alloc] init];
-        lockLayers();
-        [layerStorage addObject: layersSet];
-        unlockLayers();
 
         layersSet.container = [dsi_mac windowLayer];
         [layersSet.container removeAllAnimations];
@@ -319,12 +316,21 @@ JNIEXPORT void JNICALL Java_org_jetbrains_skiko_HardwareLayer_updateLayer(JNIEnv
             }
             for (LayerHandler* value in layerStorage)
             {
+                if (layersSet.container == value.container)
+                {
+                    layersSet.window = value.window;
+                }
                 [windows removeObject: value.window];
             }
+            if (layersSet.window == NULL)
+            {
                 layersSet.window = [windows firstObject];
             }
         }
 
+        [layerStorage addObject: layersSet];
+    }
+
     ds->FreeDrawingSurfaceInfo(dsi);
     ds->Unlock(ds);
     awt.FreeDrawingSurface(ds);