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package scrolling;

import javafx.animation.Animation;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.util.Duration;

/**
 * Translates a grid of items, but does so on pixel boundaries only.
 */
public class PixelAlignedTranslatingGridTest extends TranslatingGridTest {
    PixelAlignedTranslatingGridTest(ScrollingBenchBase benchmark, int rows, int cols) {
        super(benchmark, rows, cols);
    }

    // For each test, we need to start our timeline which will scroll stuff...
    @Override protected Animation createBenchmarkDriver(Scene scene) {
        final Parent root = (Parent) scene.getRoot().getChildrenUnmodifiable().get(0);
        final IntegerProperty translation = new SimpleIntegerProperty();
        root.translateYProperty().bind(translation);
        Timeline t = new Timeline(
                new KeyFrame(Duration.seconds(0), new KeyValue(translation, 0)),
                new KeyFrame(Duration.seconds(3), new KeyValue(translation, scene.getHeight()-height)));
        t.setAutoReverse(true);
        t.setCycleCount(2);
        return t;
    }
}