Index: sky/examples/raw/hello_world.dart |
diff --git a/sky/examples/raw/hello_world.dart b/sky/examples/raw/hello_world.dart |
index 0b99a9cb6d01cb03ab09f60f08a9fdc1c778bd75..50139b021557e0beb213f8705d2d860ae3e15e38 100644 |
--- a/sky/examples/raw/hello_world.dart |
+++ b/sky/examples/raw/hello_world.dart |
@@ -5,22 +5,38 @@ |
import "dart:math"; |
import 'dart:sky'; |
-void main() { |
- print("Hello, world"); |
- |
+Picture draw(int a, int r, int g, int b) { |
double width = view.width; |
double height = view.height; |
PictureRecorder recorder = new PictureRecorder(width, height); |
double radius = min(width, height) * 0.45; |
- Paint paint = new Paint()..setARGB(255, 0, 255, 0); |
- |
+ Paint paint = new Paint()..setARGB(a, r, g, b); |
recorder.drawCircle(width / 2, height / 2, radius, paint); |
+ return recorder.endRecording(); |
+} |
+ |
+bool handleEvent(Event event) { |
+ if (event.type == "pointerdown") { |
+ view.picture = draw(255, 0, 0, 255); |
+ view.schedulePaint(); |
+ return true; |
+ } |
- print("Storing picture"); |
- view.picture = recorder.endRecording(); |
+ if (event.type == "pointerup") { |
+ view.picture = draw(255, 0, 255, 0); |
+ view.schedulePaint(); |
+ return true; |
+ } |
- print("Scheduling paint"); |
+ return false; |
+} |
+ |
+void main() { |
+ print("Hello, world"); |
+ view.picture = draw(255, 0, 255, 0); |
view.schedulePaint(); |
+ |
+ view.setEventCallback(handleEvent); |
} |