Showing the changes to java/pkg/javax/swing/text/TabableView.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 1998, 2000, 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 | +package javax.swing.text; | |
| 26 | + | |
| 27 | + | |
| 28 | +/** | |
| 29 | + * Interface for <code>View</code>s that have size dependent upon tabs. | |
| 30 | + * | |
| 31 | + * @author Timothy Prinzing | |
| 32 | + * @author Scott Violet | |
| 33 | + * @see TabExpander | |
| 34 | + * @see LabelView | |
| 35 | + * @see ParagraphView | |
| 36 | + */ | |
| 37 | +public interface TabableView { | |
| 38 | + | |
| 39 | + /** | |
| 40 | + * Determines the desired span when using the given | |
| 41 | + * tab expansion implementation. If a container | |
| 42 | + * calls this method, it will do so prior to the | |
| 43 | + * normal layout which would call getPreferredSpan. | |
| 44 | + * A view implementing this should give the same | |
| 45 | + * result in any subsequent calls to getPreferredSpan | |
| 46 | + * along the axis of tab expansion. | |
| 47 | + * | |
| 48 | + * @param x the position the view would be located | |
| 49 | + * at for the purpose of tab expansion >= 0. | |
| 50 | + * @param e how to expand the tabs when encountered. | |
| 51 | + * @return the desired span >= 0 | |
| 52 | + */ | |
| 53 | + float getTabbedSpan(float x, TabExpander e); | |
| 54 | + | |
| 55 | + /** | |
| 56 | + * Determines the span along the same axis as tab | |
| 57 | + * expansion for a portion of the view. This is | |
| 58 | + * intended for use by the TabExpander for cases | |
| 59 | + * where the tab expansion involves aligning the | |
| 60 | + * portion of text that doesn't have whitespace | |
| 61 | + * relative to the tab stop. There is therefore | |
| 62 | + * an assumption that the range given does not | |
| 63 | + * contain tabs. | |
| 64 | + * | |
| 65 | + * @param p0 the starting location in the text document >= 0 | |
| 66 | + * @param p1 the ending location in the text document >= p0 | |
| 67 | + * @return the span >= 0 | |
| 68 | + */ | |
| 69 | + float getPartialSpan(int p0, int p1); | |
| 70 | +} | |