JAVAFX BASICS - Introduction to Java Programming: Comprehensive Version - page 550

The getter methods for property
values are provided in the class, but
omitted in the UML diagram for brevity.

javafx.scene.image.Image

-error: ReadOnlyBooleanProperty
-height: ReadOnlyBooleanProperty
-width: ReadOnlyBooleanProperty
-progress: ReadOnlyBooleanProperty

Indicates whether the image is loaded correctly?
The height of the image.
The width of the image.
The approximate percentage of image's loading that is completed.

+Image(filenameOrURL: String) Creates an Image with contents loaded from a file or a URL.

F IGURE 14.12

Image encapsulates information about images.

The getter and setter methods for property
values and a getter for property itself are provided
in the class, but omitted in the UML diagram for brevity.

javafx.scene.image.ImageView

-fitHeight: DoubleProperty
-fitWidth: DoubleProperty
-x: DoubleProperty
-y: DoubleProperty
-image: ObjectProperty<Image>

The height of the bounding box within which the image is resized to fit.
The width of the bounding box within which the image is resized to fit.
The x-coordinate of the ImageView origin.
The y-coordinate of the ImageView origin.
The image to be displayed in the image view.

Creates an ImageView .
Creates an ImageView with the specified image.
Creates an ImageView with image loaded from the specified file or URL.

+ImageView()
+ImageView(image: Image)
+ImageView(filenameOrURL: String)

F IGURE 14.13

ImageView is a node for displaying an image.

Listing 14.9 displays an image in three image views, as shown in Figure 14.14.

L ISTING 14.9

ShowImage.java
1 import javafx.application.Application;
2 import javafx.scene.Scene;
3 import javafx.scene.layout.HBox;
4 import javafx.scene.layout.Pane;
5 import javafx.geometry.Insets;
6 import javafx.stage.Stage;
7 import javafx.scene.image.Image;
8 import javafx.scene.image.ImageView;
9
10 public class ShowImage extends Application {
11 @Override // Override the start method in the Application class
12 public void start(Stage primaryStage) {
13 // Create a pane to hold the image views
14 Pane pane = new HBox( 10 );
15 pane.setPadding( new Insets( 5 , 5 , 5 , 5 ));
16

create an HBox

Image image = new Image( " image/us.gif " ); create an image

add an image view to pane

17 pane.getChildren().add( new ImageView(image));

18
19 ImageView imageView2 = new ImageView(image);
20 imageView2.setFitHeight( 100 );
21 imageView2.setFitWidth( 100 );

create an image view
set image view properties