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package ensemble.samples.graphics2d.images.imageproperties;

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.geometry.Rectangle2D;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

/**
 * A sample that demonstrates how to resize images and use the Viewport
 * property.
 *
 * @sampleName Image Properties
 * @preview preview.png
 * @docUrl http://docs.oracle.com/javase/8/javafx/graphics-tutorial/image_ops.htm#JFXGR238 JavaFX Image Operations
 * @see javafx.scene.image.Image
 * @see javafx.scene.image.ImageView
 * @embedded
 *
 * @related /Graphics 2d/Images/Image Creation
 * @related /Graphics 2d/Images/Image Operation
 */
public class ImagePropertiesApp extends Application {

    public Parent createContent() {
        // we can set image properties directly during creation
        String resource = "/ensemble/samples/shared-resources/sanfran.jpg";
        String url = getClass().getResource(resource).toString();
        ImageView sample1 = new ImageView(new Image(url, 30, 70, false, true));

        ImageView sample2 = new ImageView(new Image(url));
        // image can be resized to preferred width
        sample2.setFitWidth(200);
        sample2.setPreserveRatio(true);

        ImageView sample3 = new ImageView(new Image(url));
        // image can be resized to preferred height
        sample3.setFitHeight(20);
        sample3.setPreserveRatio(true);

        ImageView sample4 = new ImageView(new Image(url));
        // one can resize image without preserving ratio between height and width
        sample4.setFitWidth(40);
        sample4.setFitHeight(80);
        sample4.setPreserveRatio(false);
        sample4.setSmooth(true); //the usage of the better filter

        ImageView sample5 = new ImageView(new Image(url));
        sample5.setFitHeight(60);
        sample5.setPreserveRatio(true);
        // viewport is used for displaying the part of image
        Rectangle2D rectangle2D = new Rectangle2D(50, 200, 120, 60);
        sample5.setViewport(rectangle2D);
        // add the imageviews to layout
        HBox hBox = new HBox();
        hBox.setSpacing(10);
        hBox.getChildren().addAll(sample1, sample3, sample4, sample5);
        // show the layout
        VBox vb = new VBox(10);
        vb.setAlignment(Pos.CENTER);
        vb.getChildren().addAll(hBox, sample2);
        vb.setMinSize(VBox.USE_PREF_SIZE, VBox.USE_PREF_SIZE);
        vb.setMaxSize(VBox.USE_PREF_SIZE, VBox.USE_PREF_SIZE);

        return vb;
    }

    @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);
    }
}