/* * Copyright (c) 1998, 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * (C) Copyright IBM Corp. 1998-2003 All Rights Reserved * */ package sun.font; import java.awt.Graphics2D;import java.awt.Rectangle;import java.awt.Shape;import java.awt.font.GlyphJustificationInfo;import java.awt.font.FontRenderContext;import java.awt.font.LineMetrics;import java.awt.geom.AffineTransform;import java.awt.geom.Rectangle2D; public interface TextLineComponent {     public CoreMetrics getCoreMetrics();    public void draw(Graphics2D g2d, float x, float y);    public Rectangle2D getCharVisualBounds(int index);    public Rectangle2D getVisualBounds();    public float getAdvance();    public Shape getOutline(float x, float y);     public int getNumCharacters();     public float getCharX(int index);    public float getCharY(int index);    public float getCharAdvance(int index);    public boolean caretAtOffsetIsValid(int index);     // measures characters in context, in logical order    public int getLineBreakIndex(int start, float width);     // measures characters in context, in logical order    public float getAdvanceBetween(int start, int limit);     public Rectangle2D getLogicalBounds();     public Rectangle2D getItalicBounds();     public AffineTransform getBaselineTransform();     // return true if this wraps a glyphvector with no baseline rotation and    // has no styles requiring complex pixel bounds calculations.    public boolean isSimple();     // return the pixel bounds if we wrap a glyphvector, else throw an    // internal error    public Rectangle getPixelBounds(FontRenderContext frc, float x, float y);     /**     * Force subset characters to run left-to-right.     */    public static final int LEFT_TO_RIGHT = 0;    /**     * Force subset characters to run right-to-left.     */    public static final int RIGHT_TO_LEFT = 1;     /**     * Leave subset character direction and ordering unchanged.     */    public static final int UNCHANGED = 2;     /**     * Return a TextLineComponent for the characters in the range     * start, limit.  The range is relative to this TextLineComponent     * (ie, the first character is at 0).     * @param dir one of the constants LEFT_TO_RIGHT, RIGHT_TO_LEFT, or UNCHANGED     */    public TextLineComponent getSubset(int start, int limit, int dir);     /**     * Return the number of justification records this uses.     */    public int getNumJustificationInfos();     /**     * Return GlyphJustificationInfo objects for the characters between     * charStart and charLimit, starting at offset infoStart.  Infos     * will be in visual order.  All positions between infoStart and     * getNumJustificationInfos will be set.  If a position corresponds     * to a character outside the provided range, it is set to null.     */    public void getJustificationInfos(GlyphJustificationInfo[] infos, int infoStart, int charStart, int charLimit);     /**     * Apply deltas to the data in this component, starting at offset     * deltaStart, and return the new component.  There are two floats     * for each justification info, for a total of 2 * getNumJustificationInfos.     * The first delta is the left adjustment, the second is the right     * adjustment.     * <p>     * If flags[0] is true on entry, rejustification is allowed.  If     * the new component requires rejustification (ligatures were     * formed or split), flags[0] will be set on exit.     */    public TextLineComponent applyJustificationDeltas(float[] deltas, int deltaStart, boolean[] flags);}