JavaFX 27 · javafx.scene.paint.ImagePattern · APIdia, the JavaDoc alternative

The ImagePattern class fills a shape with an image pattern. The user may specify the anchor rectangle, which defines the position, width, and height of the image relative to the upper left corner of the shape. If the shape extends out of the anchor rectangle, the image is tiled.

If the proportional variable is set to true (the default) then the anchor rectangle should be specified relative to the unit square (0.0->1.0) and will be stretched across the shape. If the proportional variable is set to false, then the anchor rectangle should be specified in the local coordinate system of the shape and the image will be stretched to fit the anchor rectangle. The anchor rectangle will not be stretched across the shape.

The example below demonstrates the use of the proportional variable. The shapes on the top row use proportional coordinates (the default) to specify the anchor rectangle. The shapes on the bottom row use absolute coordinates. The flower image is stretched to fill the entire triangle shape, while the dot pattern image is tiled within the circle shape.


import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.paint.ImagePattern;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Polygon;
import javafx.stage.Stage;

public class HelloImagePattern extends Application {

    private static final String flowerURL = "file:flower.png";
    private static final String dotsURL = "file:dots.png";

    @Override public void start(Stage stage) {
        stage.setTitle("Image Pattern");
        Group root = new Group();
        Scene scene = new Scene(root, 600, 450);

        Image dots = new Image(dotsURL);
        Image flower = new Image(flowerURL);

        Polygon p = new Polygon();

        p.setLayoutX(10);
        p.setLayoutY(10);
        p.getPoints().add(50.0);
        p.getPoints().add(0.0);
        p.getPoints().add(100.0);
        p.getPoints().add(100.0);
        p.getPoints().add(0.0);
        p.getPoints().add(100.0);

        p.setFill(new ImagePattern(flower, 0, 0, 1, 1, true));

        root.getChildren().add(p);

        Polygon p2 = new Polygon();

        p2.setLayoutX(10);
        p2.setLayoutY(120);
        p2.getPoints().add(50.0);
        p2.getPoints().add(0.0);
        p2.getPoints().add(100.0);
        p2.getPoints().add(100.0);
        p2.getPoints().add(0.0);
        p2.getPoints().add(100.0);

        p2.setFill(new ImagePattern(flower, 0, 0, 100, 100, false));

        root.getChildren().add(p2);

        Circle circ = new Circle(50);
        circ.setTranslateX(120);
        circ.setTranslateY(10);
        circ.setCenterX(50);
        circ.setCenterY(50);
        circ.setFill(new ImagePattern(dots, 0.2, 0.2, 0.4, 0.4, true));

        root.getChildren().add(circ);

        Circle circ2 = new Circle(50);
        circ2.setTranslateX(120);
        circ2.setTranslateY(10);
        circ2.setCenterX(50);
        circ2.setCenterY(50);
        circ2.setFill(new ImagePattern(dots, 20, 20, 40, 40, false));

        root.getChildren().add(circ2);
        stage.setScene(scene);
        stage.show();
    }

The code above produces the following:

A visual rendering of the
HelloImagePattern example

Modifier and Type	Field and Description
private int	hash
private double	height
private Image	image
private Object	platformPaint
private boolean	proportional
private double	width
private double	x
private double	y

Constructor Summary

Access	Constructor and Description
public	ImagePattern(Image the image to be used as the paint. image) Creates a new instance of ImagePattern from the specified image.
public	ImagePattern(Image the image to be used as the paint. image, double the x origin of the anchor rectangle. x, double the y origin of the anchor rectangle. y, double the width of the anchor rectangle. width, double the height of the anchor rectangle. height, boolean whether the coordinates are proportional to the shape which ImagePattern fills proportional) Creates a new instance of ImagePattern.

Method Summary

Modifier and Type	Method and Description
pack-priv void	acc_addListener(AbstractNotifyListener platformChangeListener) Overrides javafx.scene.paint.Paint.acc_addListener.
pack-priv Object	acc_getPlatformPaint() Implements abstract javafx.scene.paint.Paint.acc_getPlatformPaint.
pack-priv boolean	acc_isMutable() Overrides javafx.scene.paint.Paint.acc_isMutable.
pack-priv void	acc_removeListener(AbstractNotifyListener platformChangeListener) Overrides javafx.scene.paint.Paint.acc_removeListener.
public boolean	equals(Object obj) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public final double	Returns: The height of the anchor rectangle. getHeight() Gets the height of the anchor rectangle.
public final Image	Returns: Image to be used as a paint. getImage() Gets the image to be used as a paint.
public final double	Returns: The width of the anchor rectangle. getWidth() Gets the width of the anchor rectangle.
public final double	Returns: The x origin of the anchor rectangle. getX() Gets the x origin of the anchor rectangle.
public final double	Returns: The y origin of the anchor rectangle. getY() Gets the y origin of the anchor rectangle.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public ImagePattern	Returns: the intermediate value interpolate(ImagePattern the target value endValue, double the interpolation factor t) Implements javafx.animation.Interpolatable.interpolate. Returns an intermediate value between the value of this `ImagePattern` and the specified `endValue` using the linear interpolation factor `t`, ranging from 0 (inclusive) to 1 (inclusive).
public Paint	interpolate(Paint endValue, double t) Implements javafx.animation.Interpolatable.interpolate. Returns an intermediate value between the value of this `Interpolatable` and the specified `endValue` using the linear interpolation factor `t`.
public final boolean	isOpaque() Implements abstract javafx.scene.paint.Paint.isOpaque. Gets whether this Paint is completely opaque.
public final boolean	Returns: boolean that is true if this paint is proportional. isProportional() Gets a boolean that indicates whether start and end locations are proportional or absolute.

Inherited from javafx.scene.paint.Paint:: valueOf

Field Detail

hash	back to summary
private int hash

height	back to summary
private double height

image	back to summary
private Image image

platformPaint	back to summary
private Object platformPaint

proportional	back to summary
private boolean proportional

width	back to summary
private double width

x	back to summary
private double x

y	back to summary
private double y

Constructor Detail

ImagePattern	back to summary
public ImagePattern(Image image) Creates a new instance of ImagePattern from the specified image. Default values are used for all other parameters. Parameters image:Image the image to be used as the paint. Exceptions NullPointerException: if the image is null. IllegalArgumentException: if image is not done loading, that is if progress is < 1.

ImagePattern

back to summary

public ImagePattern(Image image)

Creates a new instance of ImagePattern from the specified image. Default values are used for all other parameters.

Parameters

image:Image: the image to be used as the paint.

Exceptions

NullPointerException:: if the image is null.
IllegalArgumentException:: if image is not done loading, that is if progress is < 1.

ImagePattern	back to summary
public ImagePattern(Image image, double x, double y, double width, double height, boolean proportional) Creates a new instance of ImagePattern. Parameters image:Image the image to be used as the paint. x:double the x origin of the anchor rectangle. y:double the y origin of the anchor rectangle. width:double the width of the anchor rectangle. height:double the height of the anchor rectangle. proportional:boolean whether the coordinates are proportional to the shape which ImagePattern fills Exceptions NullPointerException: if the image is null. IllegalArgumentException: if image is not done loading, that is if progress is < 1.

ImagePattern

back to summary

public ImagePattern(Image image, double x, double y, double width, double height, boolean proportional)

Creates a new instance of ImagePattern.

Parameters

image:Image: the image to be used as the paint.
x:double: the x origin of the anchor rectangle.
y:double: the y origin of the anchor rectangle.
width:double: the width of the anchor rectangle.
height:double: the height of the anchor rectangle.
proportional:boolean: whether the coordinates are proportional to the shape which ImagePattern fills

Exceptions

NullPointerException:: if the image is null.
IllegalArgumentException:: if image is not done loading, that is if progress is < 1.

Method Detail

acc_addListener	back to summary
pack-priv void acc_addListener(AbstractNotifyListener platformChangeListener) Overrides javafx.scene.paint.Paint.acc_addListener. Annotations @Override

acc_addListener

back to summary

pack-priv void acc_addListener(AbstractNotifyListener platformChangeListener)

Overrides javafx.scene.paint.Paint.acc_addListener.

Annotations

@Override

acc_getPlatformPaint	back to summary
pack-priv Object acc_getPlatformPaint() Implements abstract javafx.scene.paint.Paint.acc_getPlatformPaint. Annotations @Override

acc_getPlatformPaint

back to summary

pack-priv Object acc_getPlatformPaint()

Implements abstract javafx.scene.paint.Paint.acc_getPlatformPaint.

Annotations

@Override

acc_isMutable	back to summary
pack-priv boolean acc_isMutable() Overrides javafx.scene.paint.Paint.acc_isMutable. Annotations @Override

acc_isMutable

back to summary

pack-priv boolean acc_isMutable()

Overrides javafx.scene.paint.Paint.acc_isMutable.

Annotations

@Override

acc_removeListener	back to summary
pack-priv void acc_removeListener(AbstractNotifyListener platformChangeListener) Overrides javafx.scene.paint.Paint.acc_removeListener. Annotations @Override

acc_removeListener

back to summary

pack-priv void acc_removeListener(AbstractNotifyListener platformChangeListener)

Overrides javafx.scene.paint.Paint.acc_removeListener.

Annotations

@Override

equals back to summary

equals	back to summary
public boolean equals(Object obj) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Annotations @Override

public boolean equals(Object obj)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Annotations

@Override

getHeight	back to summary
public final double getHeight() Gets the height of the anchor rectangle. Returns:double The height of the anchor rectangle. Default Value 1.0

getHeight

back to summary

public final double getHeight()

Gets the height of the anchor rectangle.

Returns:double: The height of the anchor rectangle.
Default Value: 1.0

getImage	back to summary
public final Image getImage() Gets the image to be used as a paint. Returns:Image Image to be used as a paint.

getImage

back to summary

public final Image getImage()

Gets the image to be used as a paint.

Returns:Image: Image to be used as a paint.

getWidth	back to summary
public final double getWidth() Gets the width of the anchor rectangle. Returns:double The width of the anchor rectangle. Default Value 1.0

getWidth

back to summary

public final double getWidth()

Gets the width of the anchor rectangle.

Returns:double: The width of the anchor rectangle.
Default Value: 1.0

getX	back to summary
public final double getX() Gets the x origin of the anchor rectangle. Returns:double The x origin of the anchor rectangle. Default Value 0.0

getX

back to summary

public final double getX()

Gets the x origin of the anchor rectangle.

Returns:double: The x origin of the anchor rectangle.
Default Value: 0.0

getY	back to summary
public final double getY() Gets the y origin of the anchor rectangle. Returns:double The y origin of the anchor rectangle. Default Value 0.0

getY

back to summary

public final double getY()

Gets the y origin of the anchor rectangle.

Returns:double: The y origin of the anchor rectangle.
Default Value: 0.0

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Annotations

@Override

interpolate back to summary

interpolate	back to summary
public ImagePattern interpolate(ImagePattern endValue, double t) Implements javafx.animation.Interpolatable.interpolate. Returns an intermediate value between the value of this `ImagePattern` and the specified `endValue` using the linear interpolation factor `t`, ranging from 0 (inclusive) to 1 (inclusive). Parameters endValue:ImagePattern the target value t:double the interpolation factor Returns:ImagePattern the intermediate value Exceptions NullPointerException: if `endValue` is `null` Since 24

public ImagePattern interpolate(ImagePattern endValue, double t)

Implements javafx.animation.Interpolatable.interpolate.

Returns an intermediate value between the value of this ImagePattern and the specified endValue using the linear interpolation factor t, ranging from 0 (inclusive) to 1 (inclusive).

Parameters

endValue:ImagePattern: the target value
t:double: the interpolation factor

Returns:ImagePattern

the intermediate value

Exceptions

NullPointerException:: if endValue is null

Since

interpolate back to summary

interpolate	back to summary
public Paint interpolate(Paint endValue, double t) Implements javafx.animation.Interpolatable.interpolate. Doc from javafx.animation.Interpolatable.interpolate. Returns an intermediate value between the value of this `Interpolatable` and the specified `endValue` using the linear interpolation factor `t`. The interpolation factor can be any finite value. The returned value might not be a new instance; the implementation might also return one of the two existing instances if the intermediate value would be equal to one of the existing values. However, this is an optimization and applications should not assume any particular identity of the returned value. Annotations @Override Exceptions NullPointerException: if `endValue` is `null` Since 24

public Paint interpolate(Paint endValue, double t)

Implements javafx.animation.Interpolatable.interpolate.

Doc from javafx.animation.Interpolatable.interpolate.

Returns an intermediate value between the value of this Interpolatable and the specified endValue using the linear interpolation factor t. The interpolation factor can be any finite value.

The returned value might not be a new instance; the implementation might also return one of the two existing instances if the intermediate value would be equal to one of the existing values. However, this is an optimization and applications should not assume any particular identity of the returned value.

Annotations

@Override

Exceptions

NullPointerException:: if endValue is null

Since

isOpaque	back to summary
public final boolean isOpaque() Implements abstract javafx.scene.paint.Paint.isOpaque. Doc from javafx.scene.paint.Paint.isOpaque. Gets whether this Paint is completely opaque. An opaque paint is one that has no alpha component in any of its colors. It may be possible for a Paint to be opaque and yet return false, if it cannot be easily determined whether the paint is actually opaque. For example, the ImagePattern may not be able to cheaply determine its opacity. Annotations @Override

isOpaque

back to summary

public final boolean isOpaque()

Implements abstract javafx.scene.paint.Paint.isOpaque.

Doc from javafx.scene.paint.Paint.isOpaque.

Gets whether this Paint is completely opaque. An opaque paint is one that has no alpha component in any of its colors. It may be possible for a Paint to be opaque and yet return false, if it cannot be easily determined whether the paint is actually opaque. For example, the ImagePattern may not be able to cheaply determine its opacity.

Annotations

@Override

isProportional back to summary

isProportional	back to summary
public final boolean isProportional() Gets a boolean that indicates whether start and end locations are proportional or absolute. If this flag is true, the two end points are defined in a coordinate space where coordinates in the range `[0..1]` are scaled to map onto the bounds of the shape that the pattern fills. If this flag is false, then the coordinates are specified in the local coordinate system of the node. Returns:boolean boolean that is true if this paint is proportional. Default Value true

public final boolean isProportional()

Gets a boolean that indicates whether start and end locations are proportional or absolute. If this flag is true, the two end points are defined in a coordinate space where coordinates in the range [0..1] are scaled to map onto the bounds of the shape that the pattern fills. If this flag is false, then the coordinates are specified in the local coordinate system of the node.

Returns:boolean: boolean that is true if this paint is proportional.
Default Value: true

public final Class ImagePattern

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail