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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | /* | ||
| 26 | * | ||
| 27 | * (C) Copyright IBM Corp. 1998-2003 All Rights Reserved | ||
| 28 | */ | ||
| 29 | |||
| 30 | package sun.font; | ||
| 31 | |||
| 32 | import java.awt.Graphics2D; | ||
| 33 | import java.awt.Shape; | ||
| 34 | |||
| 35 | import java.awt.geom.Rectangle2D; | ||
| 36 | |||
| 37 | /** | ||
| 38 | * A label. | ||
| 39 | * Visual bounds is a rect that encompasses the entire rendered area. | ||
| 40 | * Logical bounds is a rect that defines how to position this next | ||
| 41 | * to other objects. | ||
| 42 | * Align bounds is a rect that defines how to align this to margins. | ||
| 43 | * it generally allows some overhang that logical bounds would prevent. | ||
| 44 | */ | ||
| 45 | public abstract class TextLabel { | ||
| 46 | |||
| 47 | /** | ||
| 48 | * Return a rectangle that surrounds the text outline when this label is rendered at x, y. | ||
| 49 | */ | ||
| 50 | public abstract Rectangle2D getVisualBounds(float x, float y); | ||
| 51 | |||
| 52 | /** | ||
| 53 | * Return a rectangle that corresponds to the logical bounds of the text | ||
| 54 | * when this label is rendered at x, y. | ||
| 55 | * This rectangle is used when positioning text next to other text. | ||
| 56 | */ | ||
| 57 | public abstract Rectangle2D getLogicalBounds(float x, float y); | ||
| 58 | |||
| 59 | /** | ||
| 60 | * Return a rectangle that corresponds to the alignment bounds of the text | ||
| 61 | * when this label is rendered at x, y. This rectangle is used when positioning text next | ||
| 62 | * to a margin. It differs from the logical bounds in that it does not include leading or | ||
| 63 | * trailing whitespace. | ||
| 64 | */ | ||
| 65 | public abstract Rectangle2D getAlignBounds(float x, float y); | ||
| 66 | |||
| 67 | /** | ||
| 68 | * Return a rectangle that corresponds to the logical bounds of the text, adjusted | ||
| 69 | * to angle the leading and trailing edges by the italic angle. | ||
| 70 | */ | ||
| 71 | public abstract Rectangle2D getItalicBounds(float x, float y); | ||
| 72 | |||
| 73 | /** | ||
| 74 | * Return an outline of the characters in the label when rendered at x, y. | ||
| 75 | */ | ||
| 76 | public abstract Shape getOutline(float x, float y); | ||
| 77 | |||
| 78 | /** | ||
| 79 | * Render the label at x, y in the graphics. | ||
| 80 | */ | ||
| 81 | public abstract void draw(Graphics2D g, float x, float y); | ||
| 82 | |||
| 83 | /** | ||
| 84 | * A convenience method that returns the visual bounds when rendered at 0, 0. | ||
| 85 | */ | ||
| 86 | public Rectangle2D getVisualBounds() { | ||
| 87 | return getVisualBounds(0f, 0f); | ||
| 88 | } | ||
| 89 | |||
| 90 | /** | ||
| 91 | * A convenience method that returns the logical bounds when rendered at 0, 0. | ||
| 92 | */ | ||
| 93 | public Rectangle2D getLogicalBounds() { | ||
| 94 | return getLogicalBounds(0f, 0f); | ||
| 95 | } | ||
| 96 | |||
| 97 | /** | ||
| 98 | * A convenience method that returns the align bounds when rendered at 0, 0. | ||
| 99 | */ | ||
| 100 | public Rectangle2D getAlignBounds() { | ||
| 101 | return getAlignBounds(0f, 0f); | ||
| 102 | } | ||
| 103 | |||
| 104 | /** | ||
| 105 | * A convenience method that returns the italic bounds when rendered at 0, 0. | ||
| 106 | */ | ||
| 107 | public Rectangle2D getItalicBounds() { | ||
| 108 | return getItalicBounds(0f, 0f); | ||
| 109 | } | ||
| 110 | |||
| 111 | /** | ||
| 112 | * A convenience method that returns the outline when rendered at 0, 0. | ||
| 113 | */ | ||
| 114 | public Shape getOutline() { | ||
| 115 | return getOutline(0f, 0f); | ||
| 116 | } | ||
| 117 | |||
| 118 | /** | ||
| 119 | * A convenience method that renders the label at 0, 0. | ||
| 120 | */ | ||
| 121 | public void draw(Graphics2D g) { | ||
| 122 | draw(g, 0f, 0f); | ||
| 123 | } | ||
| 124 | } | ||