JDK14/Java14源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package javax.swing.text;

import java.awt.Graphics;
import java.awt.Shape;

/**
 *
 * @author  Scott Violet
 * @author  Timothy Prinzing
 * @see     Highlighter
 */
public abstract class LayeredHighlighter implements Highlighter {
    /**
     * When leaf Views (such as LabelView) are rendering they should
     * call into this method. If a highlight is in the given region it will
     * be drawn immediately.
     *
     * @param g Graphics used to draw
     * @param p0 starting offset of view
     * @param p1 ending offset of view
     * @param viewBounds Bounds of View
     * @param editor JTextComponent
     * @param view View instance being rendered
     */
    public abstract void paintLayeredHighlights(Graphics g, int p0, int p1,
                                                Shape viewBounds,
                                                JTextComponent editor,
                                                View view);


    /**
     * Layered highlight renderer.
     */
    public abstract static class LayerPainter implements Highlighter.HighlightPainter {
        /**
         * @return a shape
         * @param g Graphics used to draw
         * @param p0 starting offset of view
         * @param p1 ending offset of view
         * @param viewBounds Bounds of View

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