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/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates.
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*
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*
* - Redistributions of source code must retain the above copyright
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package ensemble.samples.graphics2d.images.imageoperator;
import javafx.application.Application;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.image.PixelWriter;
import javafx.scene.image.WritableImage;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
/**
* A sample that demonstrates the use of two different constructors in the Image
* class.
*
* @sampleName Image Operation
* @preview preview.png
* @playground gridSize (name="Grid Size", min=0, max=10)
* @playground hueFactor (name="Hue Factor", min=0, max=32)
* @playground hueOffset (name="Hue Offset", min=0, max=360)
* @see javafx.scene.image.Image
* @see javafx.scene.image.ImageView
*/
public class ImageOperationApp extends Application {
private SimpleDoubleProperty gridSize = new SimpleDoubleProperty(3.0);
private SimpleDoubleProperty hueFactor = new SimpleDoubleProperty(12.0);
private SimpleDoubleProperty hueOffset = new SimpleDoubleProperty(240.0);
private static void renderImage(WritableImage img, double gridSize, double hueFactor, double hueOffset) {
PixelWriter pw = img.getPixelWriter();
double w = img.getWidth();
double h = img.getHeight();
double xRatio = 0.0;
double yRatio = 0.0;
double hue = 0.0;
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
xRatio = x/w;
yRatio = y/h;
hue = Math.sin(yRatio*(gridSize*Math.PI))*Math.sin(xRatio*(gridSize*Math.PI))*Math.tan(hueFactor/20.0)*360.0 + hueOffset;
Color c = Color.hsb(hue, 1.0, 1.0);
pw.setColor(x, y, c);
}
}
}
public Parent createContent() {
StackPane root = new StackPane();
final WritableImage img = new WritableImage(200, 200);
gridSize.addListener((Observable observable) -> {
renderImage(img, gridSize.doubleValue(), hueFactor.doubleValue(), hueOffset.doubleValue());
});
hueFactor.addListener((Observable observable) -> {
renderImage(img, gridSize.doubleValue(), hueFactor.doubleValue(), hueOffset.doubleValue());
});
hueOffset.addListener((Observable observable) -> {
renderImage(img, gridSize.doubleValue(), hueFactor.doubleValue(), hueOffset.doubleValue());
});
renderImage(img, 3.0, 12.0, 240.0);
ImageView view = new ImageView(img);
root.getChildren().add(view);
return root;
}
@Override public void start(Stage primaryStage) throws Exception {
primaryStage.setScene(new Scene(createContent()));
primaryStage.show();
}
/** Java main for when running without JavaFX launcher
* @param args command line arguments
*/
public static void main(String[] args) { launch(args); }
}
