| /* |
| * Copyright (c) 1998, 2003, 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.Font; |
| import java.awt.font.FontRenderContext; |
| import java.awt.font.LineMetrics; |
| |
| /** |
| * A text source represents text for rendering, plus context information. |
| * All text in the source uses the same font, metrics, and render context, |
| * and is at the same bidi level. |
| */ |
| |
| public abstract class TextSource { |
| /** Source character data. */ |
| public abstract char[] getChars(); |
| |
| /** Start of source data in char array returned from getChars. */ |
| public abstract int getStart(); |
| |
| /** Length of source data. */ |
| public abstract int getLength(); |
| |
| /** Start of context data in char array returned from getChars. */ |
| public abstract int getContextStart(); |
| |
| /** Length of context data. */ |
| public abstract int getContextLength(); |
| |
| /** Return the layout flags */ |
| public abstract int getLayoutFlags(); |
| |
| /** Bidi level of all the characters in context. */ |
| public abstract int getBidiLevel(); |
| |
| /** Font for source data. */ |
| public abstract Font getFont(); |
| |
| /** Font render context to use when measuring or rendering source data. */ |
| public abstract FontRenderContext getFRC(); |
| |
| /** Line metrics for source data. */ |
| public abstract CoreMetrics getCoreMetrics(); |
| |
| /** Get subrange of this TextSource. dir is one of the TextLineComponent constants */ |
| public abstract TextSource getSubSource(int start, int length, int dir); |
| |
| /** Constant for toString(boolean). Indicates that toString should not return info |
| outside of the context of this instance. */ |
| public static final boolean WITHOUT_CONTEXT = false; |
| |
| /** Constant for toString(boolean). Indicates that toString should return info |
| outside of the context of this instance. */ |
| public static final boolean WITH_CONTEXT = true; |
| |
| /** Get debugging info about this TextSource instance. Default implementation just |
| returns toString. Subclasses should implement this to match the semantics of |
| the toString constants. */ |
| public abstract String toString(boolean withContext); |
| } |