Class Rating

All Implemented Interfaces:
Styleable, EventTarget, Skinnable

public class Rating extends Control
A control for allowing users to provide a rating. This control supports partial ratings (i.e. not whole numbers and dependent upon where the user clicks in the control) and updating the rating on hover. Read on for more examples!

Examples

It can be hard to appreciate some of the features of the Rating control, so hopefully the following screenshots will help. Firstly, here is what the standard (horizontal) Rating control looks like when it has five stars, and a rating of two:
Screenshot of horizontal Rating

To create a Rating control that looks like this is simple:

 
 final Rating rating = new Rating();

This creates a default horizontal rating control. To create a vertical Rating control, simply change the orientation, as such:

 
 final Rating rating = new Rating();
 rating.setOrientation(Orientation.VERTICAL);

The end result of making this one line change is shown in the screenshot below:

Screenshot of vertical Rating

One of the features of the Rating control is that it doesn't just allow for 'integer' ratings: it also allows for the user to click anywhere within the rating area to set a 'float' rating. This is hard to describe, but easy to show in a picture:

Screenshot of partial Rating

In essence, in the screenshot above, the user clicked roughly in the middle of the third star. This results in a rating of approximately 2.44. To enable partial ratings, simply do the following when instantiating the Rating control:

 
 final Rating rating = new Rating();
 rating.setPartialRating(true);

So far all of the Rating controls demonstrated above have required the user to click on the stars to register their rating. This may not be the preferred user interaction - often times the preferred approach is to simply allow for the rating to be registered by the user hovering their mouse over the rating stars. This mode is also supported by the Rating control, using the update on hover property, as such:

 
 final Rating rating = new Rating();
 rating.setUpdateOnHover(true);

It is also allowable to have a Rating control that both updates on hover and allows for partial values: the 'golden fill' of the default graphics will automatically follow the users mouse as they move it along the Rating scale. To enable this, just set both properties to true.

  • Property Details

  • Constructor Details

    • Rating

      public Rating()
      Creates a default instance with a minimum rating of 0 and a maximum rating of 5.
    • Rating

      public Rating(int max)
      Creates a default instance with a minimum rating of 0 and a maximum rating as provided by the argument.
      Parameters:
      max - The maximum allowed rating value.
    • Rating

      public Rating(int max, int rating)
      Creates a Rating instance with a minimum rating of 0, a maximum rating as provided by the max argument, and a current rating as provided by the rating argument.
      Parameters:
      max - The maximum allowed rating value.
  • Method Details

    • createDefaultSkin

      protected Skin<?> createDefaultSkin()
      Overrides:
      createDefaultSkin in class Control
    • getUserAgentStylesheet

      public String getUserAgentStylesheet()
      Overrides:
      getUserAgentStylesheet in class Region
    • ratingProperty

      public final DoubleProperty ratingProperty()
      The current rating value.
      See Also:
    • setRating

      public final void setRating(double value)
      Sets the current rating value.
    • getRating

      public final double getRating()
      Returns the current rating value.
    • maxProperty

      public final IntegerProperty maxProperty()
      The maximum-allowed rating value.
      See Also:
    • setMax

      public final void setMax(int value)
      Sets the maximum-allowed rating value.
    • getMax

      public final int getMax()
      Returns the maximum-allowed rating value.
    • orientationProperty

      public final ObjectProperty<Orientation> orientationProperty()
      The Orientation of the Rating - this can either be horizontal or vertical.
      See Also:
    • setOrientation

      public final void setOrientation(Orientation value)
      Sets the Orientation of the Rating - this can either be horizontal or vertical.
    • getOrientation

      public final Orientation getOrientation()
      Returns the Orientation of the Rating - this can either be horizontal or vertical.
    • partialRatingProperty

      public final BooleanProperty partialRatingProperty()
      If true this allows for users to set a rating as a floating point value. In other words, the range of the rating 'stars' can be thought of as a range between [0, max], and whereever the user clicks will be calculated as the new rating value. If this is false the more typical approach is used where the selected 'star' is used as the rating.
      See Also:
    • setPartialRating

      public final void setPartialRating(boolean value)
      Sets whether partial rating support is enabled or not.
    • isPartialRating

      public final boolean isPartialRating()
      Returns whether partial rating support is enabled or not.
    • updateOnHoverProperty

      public final BooleanProperty updateOnHoverProperty()
      If true this allows for the rating property to be updated simply by the user hovering their mouse over the control. If false the user is required to click on their preferred rating to register the new rating with this control.
      See Also:
    • setUpdateOnHover

      public final void setUpdateOnHover(boolean value)
      Sets whether update on hover support is enabled or not.
    • isUpdateOnHover

      public final boolean isUpdateOnHover()
      Returns whether update on hover support is enabled or not.
    • getUserAgentStylesheet

      protected final String getUserAgentStylesheet(Class<?> clazz, String fileName)
      A helper method that ensures that the resource based lookup of the user agent stylesheet only happens once. Caches the external form of the resource.
      Parameters:
      clazz - the class used for the resource lookup
      fileName - the name of the user agent stylesheet
      Returns:
      the external form of the user agent stylesheet (the path)