Add Olive.scriptLoaded event

orx-olive/src/demo/kotlin/DemoOlive01.kt

@@ -0,0 +1,34 @@
+import org.openrndr.Extension
+import org.openrndr.Program
+import org.openrndr.application
+import org.openrndr.extensions.SingleScreenshot
+import org.openrndr.extra.olive.Olive
+
+fun main() = application {
+    configure {
+        width = 768
+        height = 576
+    }
+    program {
+
+        extend(Olive<Program>()) {
+            script = "orx-olive/src/demo/kotlin/demo-olive-01.kts"
+
+            // -- this block is for automation purposes only
+            if (System.getProperty("takeScreenshot") == "true") {
+                scriptLoaded.listen {
+                    // -- this is a bit of hack, we need to push the screenshot extension in front of the olive one
+                    fun <T : Extension> Program.extendHead(extension: T, configure: T.() -> Unit): T {
+                        extensions.add(0, extension)
+                        extension.configure()
+                        extension.setup(this)
+                        return extension
+                    }
+                    extendHead(SingleScreenshot()) {
+                        this.outputFile = System.getProperty("screenshotPath")
+                    }
+                }
+            }
+        }
+    }
+}

orx-olive/src/demo/kotlin/demo-olive-01.kts

@@ -0,0 +1,14 @@
+@file:Suppress("UNUSED_LAMBDA_EXPRESSION")
+import org.openrndr.Program
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.*
+
+{ program: Program ->
+    program.apply {
+        extend {
+            drawer.background(ColorRGBa.GRAY)
+            drawer.fill = ColorRGBa.PINK
+            drawer.circle(width/2.0, height/2.0 ,200.0)
+        }
+    }
+}