Summary

Adds the (missing) API to style the rich text paragraph highlights with CSS.

Problem

RichTextParagraph.Builder class provides two sets of APIs to style the text: using explicit attributes and using CSS styles, except for the highlights.

Solution

The solution entails adding the missing methods:

• RichParagraph.Builder.addHighlight(int start, int end, String ... styles)
• RichParagraph.Builder.addWavyUnderline(int start, int end, String ... styles)

Specification

jfx.incubator.scene.control.richtext.model.RichParagraph.java

	+        /**
	+         * Adds a wavy underline (typically used as a spell checker indicator) with the specified style name(s).
	+         * <p>
	+         * The corresponding styles should define CSS properties applicable to {@link javafx.scene.shape.Path}.
	+         *
	+         * @param start the start offset
	+         * @param length the end offset
	+         * @param css the style name(s)
	+         * @return this {@code Builder} instance
	+         * @since 25
	+         */
	+        public Builder addWavyUnderline(int start, int length, String ... css)
	
	         /**
	+         * Adds a highlight with the specified style name(s).
	+         * Use translucent colors to enable multiple highlights in the same region of text.
	+         * <p>
	+         * The corresponding styles should define CSS properties applicable to {@link javafx.scene.shape.Path}.
	+         *
	+         * @param start the start offset
	+         * @param length the end offset
	+         * @param css the style name(s)
	+         * @return this {@code Builder} instance
	+         * @since 25
	+         */
	+        public Builder addHighlight(int start, int length, String ... css)
	
	
	         /**
	          * Appends a text segment styled with the stylesheet style names.
	+         * The corresponding styles should define CSS properties applicable to {@link javafx.scene.text.Text}.
	          *
	          * @param text non-null text string
	          * @param css array of style names, cannot be null
	          * @return this {@code Builder} instance
	          */
	         public Builder addWithStyleNames(String text, String ... css)
	
	         /**
	          * Appends a text segment styled with both the inline style and the stylesheet style names.
	+         * The corresponding styles should define CSS properties applicable to {@link javafx.scene.text.Text}.
	          *
	          * @param text non-null text string
	          * @param style direct style (such as {@code -fx-fill:red;}), or null
	          * @param css array of style names
	          * @return this {@code Builder} instance
	          */
	         public Builder addWithInlineAndStyleNames(String text, String style, String ... css)
	
	         /**
	          * Appends a text segment styled with the stylesheet style names.
	+         * The corresponding styles should define CSS properties applicable to {@link javafx.scene.text.Text}.
	          *
	          * @param text non-null text string
	          * @param style the inline style (example {@code "-fx-fill:red;"}), or null
	          * @return this {@code Builder} instance
	          */
	         public Builder addWithInlineStyle(String text, String style)

jfx.incubator.scene.control.richtext.model.SimpleViewOnlyStyledModel.java

	     /**
	+     * Adds a highlight of the given color to the specified range within the last paragraph,
	+     * with the specified style name(s).
	+     *
	+     * @param start the start offset
	+     * @param length the length of the highlight
	+     * @param css the highlight style name(s)
	+     * @return this model instance
	+     * @since 25
	+     */
	+    public SimpleViewOnlyStyledModel highlight(int start, int length, String ... css)

	+    /**
	+     * Adds a wavy underline (typically used as a spell checker indicator)
	+     * to the specified range within the last paragraph, with the specified style name(s).
	+     *
	+     * @param start the start offset
	+     * @param length the length of the highlight
	+     * @param css the highlight style name(s)
	+     * @return this model instance
	+     * @since 25
	+     */
	+    public SimpleViewOnlyStyledModel addWavyUnderline(int start, int length, String ... css)