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import javafx.scene.Scene;
import javafx.scene.input.*;
import javafx.scene.paint.Color;
import javafx.scene.shape.*;
import javafx.stage.Stage;


Stage {
    var scene: Scene = Scene {
        width: 600 height: 600
        content: [
            Rectangle {
                width: bind scene.width
                height: bind scene.height
                opacity: 0

                var path: Path;
                onMousePressed: function(ev: MouseEvent) {
                    path = Path {
                        stroke: Color.BLUE
                        strokeWidth: 2
                        elements: MoveTo { x: ev.x, y: ev.y }
                    };
                    insert path into scene.content;
                }
                onMouseDragged: function(ev: MouseEvent) {
                    insert LineTo { x: ev.x, y: ev.y } into path.elements;
                }
                onMouseClicked: function(ev: MouseEvent) {
                    if (ev.clickCount == 2) {
                        scene.content = scene.content[0];
                    }
                }
            },
        ]
    }

    title: "Simple Drawing"
    scene: scene
}