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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2004, 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.html; | ||
| 26 | |||
| 27 | import java.awt.*; | ||
| 28 | import java.awt.event.*; | ||
| 29 | import java.io.*; | ||
| 30 | import java.net.MalformedURLException; | ||
| 31 | import java.net.URL; | ||
| 32 | import javax.swing.text.*; | ||
| 33 | import javax.swing.*; | ||
| 34 | import javax.swing.border.*; | ||
| 35 | import javax.swing.event.*; | ||
| 36 | import java.util.*; | ||
| 37 | |||
| 38 | /** | ||
| 39 | * CommentView subclasses HiddenTagView to contain a JTextArea showing | ||
| 40 | * a comment. When the textarea is edited the comment is | ||
| 41 | * reset. As this inherits from EditableView if the JTextComponent is | ||
| 42 | * not editable, the textarea will not be visible. | ||
| 43 | * | ||
| 44 | * @author Scott Violet | ||
| 45 | */ | ||
| 46 | class CommentView extends HiddenTagView { | ||
| 47 | CommentView(Element e) { | ||
| 48 | super(e); | ||
| 49 | } | ||
| 50 | |||
| 51 | protected Component createComponent() { | ||
| 52 | Container host = getContainer(); | ||
| 53 | if (host != null && !((JTextComponent)host).isEditable()) { | ||
| 54 | return null; | ||
| 55 | } | ||
| 56 | JTextArea ta = new JTextArea(getRepresentedText()); | ||
| 57 | Document doc = getDocument(); | ||
| 58 | Font font; | ||
| 59 | if (doc instanceof StyledDocument) { | ||
| 60 | font = ((StyledDocument)doc).getFont(getAttributes()); | ||
| 61 | ta.setFont(font); | ||
| 62 | } | ||
| 63 | else { | ||
| 64 | font = ta.getFont(); | ||
| 65 | } | ||
| 66 | updateYAlign(font); | ||
| 67 | ta.setBorder(CBorder); | ||
| 68 | ta.getDocument().addDocumentListener(this); | ||
| 69 | ta.setFocusable(isVisible()); | ||
| 70 | return ta; | ||
| 71 | } | ||
| 72 | |||
| 73 | void resetBorder() { | ||
| 74 | } | ||
| 75 | |||
| 76 | /** | ||
| 77 | * This is subclassed to put the text on the Comment attribute of | ||
| 78 | * the Element's AttributeSet. | ||
| 79 | */ | ||
| 80 | void _updateModelFromText() { | ||
| 81 | JTextComponent textC = getTextComponent(); | ||
| 82 | Document doc = getDocument(); | ||
| 83 | if (textC != null && doc != null) { | ||
| 84 | String text = textC.getText(); | ||
| 85 | SimpleAttributeSet sas = new SimpleAttributeSet(); | ||
| 86 | isSettingAttributes = true; | ||
| 87 | try { | ||
| 88 | sas.addAttribute(HTML.Attribute.COMMENT, text); | ||
| 89 | ((StyledDocument)doc).setCharacterAttributes | ||
| 90 | (getStartOffset(), getEndOffset() - | ||
| 91 | getStartOffset(), sas, false); | ||
| 92 | } | ||
| 93 | finally { | ||
| 94 | isSettingAttributes = false; | ||
| 95 | } | ||
| 96 | } | ||
| 97 | } | ||
| 98 | |||
| 99 | JTextComponent getTextComponent() { | ||
| 100 | return (JTextComponent)getComponent(); | ||
| 101 | } | ||
| 102 | |||
| 103 | String getRepresentedText() { | ||
| 104 | AttributeSet as = getElement().getAttributes(); | ||
| 105 | if (as != null) { | ||
| 106 | Object comment = as.getAttribute(HTML.Attribute.COMMENT); | ||
| 107 | if (comment instanceof String) { | ||
| 108 | return (String)comment; | ||
| 109 | } | ||
| 110 | } | ||
| 111 | return ""; | ||
| 112 | } | ||
| 113 | |||
| 114 | static final Border CBorder = new CommentBorder(); | ||
| 115 | static final int commentPadding = 3; | ||
| 116 | static final int commentPaddingD = commentPadding * 3; | ||
| 117 | |||
| 118 | static class CommentBorder extends LineBorder { | ||
| 119 | CommentBorder() { | ||
| 120 | super(Color.black, 1); | ||
| 121 | } | ||
| 122 | |||
| 123 | public void paintBorder(Component c, Graphics g, int x, int y, | ||
| 124 | int width, int height) { | ||
| 125 | super.paintBorder(c, g, x + commentPadding, y, | ||
| 126 | width - commentPaddingD, height); | ||
| 127 | } | ||
| 128 | |||
| 129 | public Insets getBorderInsets(Component c, Insets insets) { | ||
| 130 | Insets retI = super.getBorderInsets(c, insets); | ||
| 131 | |||
| 132 | retI.left += commentPadding; | ||
| 133 | retI.right += commentPadding; | ||
| 134 | return retI; | ||
| 135 | } | ||
| 136 | |||
| 137 | public boolean isBorderOpaque() { | ||
| 138 | return false; | ||
| 139 | } | ||
| 140 | } // End of class CommentView.CommentBorder | ||
| 141 | } // End of CommentView | ||