| /* | |
| * Copyright (c) 1998, 2013, 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. | |
| */ | |
| package javax.swing.text; | |
| /** | |
| * Interface for <code>View</code>s that have size dependent upon tabs. | |
| * | |
| * @author Timothy Prinzing | |
| * @author Scott Violet | |
| * @see TabExpander | |
| * @see LabelView | |
| * @see ParagraphView | |
| */ | |
| public interface TabableView { | |
| /** | |
| * Determines the desired span when using the given | |
| * tab expansion implementation. If a container | |
| * calls this method, it will do so prior to the | |
| * normal layout which would call getPreferredSpan. | |
| * A view implementing this should give the same | |
| * result in any subsequent calls to getPreferredSpan | |
| * along the axis of tab expansion. | |
| * | |
| * @param x the position the view would be located | |
| * at for the purpose of tab expansion >= 0. | |
| * @param e how to expand the tabs when encountered. | |
| * @return the desired span >= 0 | |
| */ | |
| float getTabbedSpan(float x, TabExpander e); | |
| /** | |
| * Determines the span along the same axis as tab | |
| * expansion for a portion of the view. This is | |
| * intended for use by the TabExpander for cases | |
| * where the tab expansion involves aligning the | |
| * portion of text that doesn't have whitespace | |
| * relative to the tab stop. There is therefore | |
| * an assumption that the range given does not | |
| * contain tabs. | |
| * | |
| * @param p0 the starting location in the text document >= 0 | |
| * @param p1 the ending location in the text document >= p0 | |
| * @return the span >= 0 | |
| */ | |
| float getPartialSpan(int p0, int p1); | |
| } |