Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/html/HTMLPrinter.d @ 158:25f1f92fa3df
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 26 Aug 2008 02:46:34 +0200 |
| parents | 5cf141e43417 |
| children | 1a5b8f8129df |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.internal.text.html.HTMLPrinter; | |
| 14 | |
| 131 | 15 import dwtx.jface.internal.text.html.HTML2TextReader; // packageimport |
| 16 import dwtx.jface.internal.text.html.BrowserInformationControl; // packageimport | |
| 17 import dwtx.jface.internal.text.html.SubstitutionTextReader; // packageimport | |
| 18 import dwtx.jface.internal.text.html.HTMLTextPresenter; // packageimport | |
| 19 import dwtx.jface.internal.text.html.BrowserInput; // packageimport | |
| 20 import dwtx.jface.internal.text.html.SingleCharReader; // packageimport | |
| 21 import dwtx.jface.internal.text.html.BrowserInformationControlInput; // packageimport | |
| 22 import dwtx.jface.internal.text.html.HTMLMessages; // packageimport | |
| 23 | |
| 24 | |
| 129 | 25 import dwt.dwthelper.utils; |
| 158 | 26 import dwtx.dwtxhelper.URL; |
| 129 | 27 |
| 28 import dwt.DWT; | |
| 29 import dwt.DWTError; | |
| 30 import dwt.graphics.FontData; | |
| 31 import dwt.graphics.RGB; | |
| 32 import dwt.widgets.Display; | |
| 33 | |
| 34 | |
| 35 /** | |
| 36 * Provides a set of convenience methods for creating HTML pages. | |
| 37 * <p> | |
| 38 * Moved into this package from <code>dwtx.jface.internal.text.revisions</code>.</p> | |
| 39 */ | |
| 40 public class HTMLPrinter { | |
| 41 | |
| 42 private static RGB BG_COLOR_RGB= new RGB(255, 255, 225); // RGB value of info bg color on WindowsXP | |
| 43 private static RGB FG_COLOR_RGB= new RGB(0, 0, 0); // RGB value of info fg color on WindowsXP | |
| 44 | |
| 45 | |
| 150 | 46 static this() { |
| 47 implMissing( __FILE__, __LINE__ ); // lazy init needed for Display | |
| 129 | 48 final Display display= Display.getDefault(); |
| 49 if (display !is null && !display.isDisposed()) { | |
| 50 try { | |
| 135 | 51 display.asyncExec(new class() Runnable { |
| 129 | 52 /* |
| 53 * @see java.lang.Runnable#run() | |
| 54 */ | |
| 55 public void run() { | |
| 56 BG_COLOR_RGB= display.getSystemColor(DWT.COLOR_INFO_BACKGROUND).getRGB(); | |
| 57 FG_COLOR_RGB= display.getSystemColor(DWT.COLOR_INFO_FOREGROUND).getRGB(); | |
| 58 } | |
| 59 }); | |
| 60 } catch (DWTError err) { | |
| 61 // see: https://bugs.eclipse.org/bugs/show_bug.cgi?id=45294 | |
| 62 if (err.code !is DWT.ERROR_DEVICE_DISPOSED) | |
| 63 throw err; | |
| 64 } | |
| 65 } | |
| 66 } | |
| 67 | |
|
133
7d818bd32d63
Fix ctors to this with gvim regexp
Frank Benoit <benoit@tionex.de>
parents:
131
diff
changeset
|
68 private this() { |
| 129 | 69 } |
| 70 | |
| 71 private static String replace(String text, char c, String s) { | |
| 72 | |
| 73 int previous= 0; | |
| 74 int current= text.indexOf(c, previous); | |
| 75 | |
| 76 if (current is -1) | |
| 77 return text; | |
| 78 | |
| 79 StringBuffer buffer= new StringBuffer(); | |
| 80 while (current > -1) { | |
| 81 buffer.append(text.substring(previous, current)); | |
| 82 buffer.append(s); | |
| 83 previous= current + 1; | |
| 84 current= text.indexOf(c, previous); | |
| 85 } | |
| 86 buffer.append(text.substring(previous)); | |
| 87 | |
| 88 return buffer.toString(); | |
| 89 } | |
| 90 | |
| 91 public static String convertToHTMLContent(String content) { | |
| 92 content= replace(content, '&', "&"); //$NON-NLS-1$ | |
| 93 content= replace(content, '"', """); //$NON-NLS-1$ | |
| 94 content= replace(content, '<', "<"); //$NON-NLS-1$ | |
| 95 return replace(content, '>', ">"); //$NON-NLS-1$ | |
| 96 } | |
| 97 | |
| 98 public static String read(Reader rd) { | |
| 99 | |
| 100 StringBuffer buffer= new StringBuffer(); | |
| 101 char[] readBuffer= new char[2048]; | |
| 102 | |
| 103 try { | |
| 104 int n= rd.read(readBuffer); | |
| 105 while (n > 0) { | |
| 106 buffer.append(readBuffer, 0, n); | |
| 107 n= rd.read(readBuffer); | |
| 108 } | |
| 109 return buffer.toString(); | |
| 110 } catch (IOException x) { | |
| 111 } | |
| 112 | |
| 113 return null; | |
| 114 } | |
| 115 | |
| 116 public static void insertPageProlog(StringBuffer buffer, int position, RGB fgRGB, RGB bgRGB, String styleSheet) { | |
| 117 if (fgRGB is null) | |
| 118 fgRGB= FG_COLOR_RGB; | |
| 119 if (bgRGB is null) | |
| 120 bgRGB= BG_COLOR_RGB; | |
| 121 | |
| 122 StringBuffer pageProlog= new StringBuffer(300); | |
| 123 | |
| 124 pageProlog.append("<html>"); //$NON-NLS-1$ | |
| 125 | |
| 126 appendStyleSheetURL(pageProlog, styleSheet); | |
| 127 | |
| 128 appendColors(pageProlog, fgRGB, bgRGB); | |
| 129 | |
| 130 buffer.insert(position, pageProlog.toString()); | |
| 131 } | |
| 132 | |
| 133 private static void appendColors(StringBuffer pageProlog, RGB fgRGB, RGB bgRGB) { | |
| 134 pageProlog.append("<body text=\""); //$NON-NLS-1$ | |
| 135 appendColor(pageProlog, fgRGB); | |
| 136 pageProlog.append("\" bgcolor=\""); //$NON-NLS-1$ | |
| 137 appendColor(pageProlog, bgRGB); | |
| 138 pageProlog.append("\">"); //$NON-NLS-1$ | |
| 139 } | |
| 140 | |
| 141 private static void appendColor(StringBuffer buffer, RGB rgb) { | |
| 142 buffer.append('#'); | |
| 143 appendAsHexString(buffer, rgb.red); | |
| 144 appendAsHexString(buffer, rgb.green); | |
| 145 appendAsHexString(buffer, rgb.blue); | |
| 146 } | |
| 147 | |
| 148 private static void appendAsHexString(StringBuffer buffer, int intValue) { | |
| 149 String hexValue= Integer.toHexString(intValue); | |
| 150 if (hexValue.length() is 1) | |
| 151 buffer.append('0'); | |
| 152 buffer.append(hexValue); | |
| 153 } | |
| 154 | |
| 155 public static void insertStyles(StringBuffer buffer, String[] styles) { | |
| 156 if (styles is null || styles.length is 0) | |
| 157 return; | |
| 158 | |
| 159 StringBuffer styleBuf= new StringBuffer(10 * styles.length); | |
| 160 for (int i= 0; styles !is null && i < styles.length; i++) { | |
| 161 styleBuf.append(" style=\""); //$NON-NLS-1$ | |
| 162 styleBuf.append(styles[i]); | |
| 163 styleBuf.append('"'); | |
| 164 } | |
| 165 | |
| 166 // Find insertion index | |
| 167 // a) within existing body tag with trailing space | |
| 168 int index= buffer.indexOf("<body "); //$NON-NLS-1$ | |
| 169 if (index !is -1) { | |
| 170 buffer.insert(index+5, styleBuf); | |
| 171 return; | |
| 172 } | |
| 173 | |
| 174 // b) within existing body tag without attributes | |
| 175 index= buffer.indexOf("<body>"); //$NON-NLS-1$ | |
| 176 if (index !is -1) { | |
| 177 buffer.insert(index+5, ' '); | |
| 178 buffer.insert(index+6, styleBuf); | |
| 179 return; | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 private static void appendStyleSheetURL(StringBuffer buffer, String styleSheet) { | |
| 184 if (styleSheet is null) | |
| 185 return; | |
| 150 | 186 |
| 129 | 187 buffer.append("<head><style CHARSET=\"ISO-8859-1\" TYPE=\"text/css\">"); //$NON-NLS-1$ |
| 188 buffer.append(styleSheet); | |
| 189 buffer.append("</style></head>"); //$NON-NLS-1$ | |
| 190 } | |
| 150 | 191 |
| 129 | 192 private static void appendStyleSheetURL(StringBuffer buffer, URL styleSheetURL) { |
| 193 if (styleSheetURL is null) | |
| 194 return; | |
| 195 | |
| 196 buffer.append("<head>"); //$NON-NLS-1$ | |
| 197 | |
| 198 buffer.append("<LINK REL=\"stylesheet\" HREF= \""); //$NON-NLS-1$ | |
| 158 | 199 buffer.append(styleSheetURL.toString()); |
| 129 | 200 buffer.append("\" CHARSET=\"ISO-8859-1\" TYPE=\"text/css\">"); //$NON-NLS-1$ |
| 201 | |
| 202 buffer.append("</head>"); //$NON-NLS-1$ | |
| 203 } | |
| 204 | |
| 205 public static void insertPageProlog(StringBuffer buffer, int position) { | |
| 206 StringBuffer pageProlog= new StringBuffer(60); | |
| 207 pageProlog.append("<html>"); //$NON-NLS-1$ | |
| 208 appendColors(pageProlog, FG_COLOR_RGB, BG_COLOR_RGB); | |
| 209 buffer.insert(position, pageProlog.toString()); | |
| 210 } | |
| 211 | |
| 212 public static void insertPageProlog(StringBuffer buffer, int position, URL styleSheetURL) { | |
| 213 StringBuffer pageProlog= new StringBuffer(300); | |
| 214 pageProlog.append("<html>"); //$NON-NLS-1$ | |
| 215 appendStyleSheetURL(pageProlog, styleSheetURL); | |
| 216 appendColors(pageProlog, FG_COLOR_RGB, BG_COLOR_RGB); | |
| 217 buffer.insert(position, pageProlog.toString()); | |
| 218 } | |
| 150 | 219 |
| 129 | 220 public static void insertPageProlog(StringBuffer buffer, int position, String styleSheet) { |
| 221 insertPageProlog(buffer, position, null, null, styleSheet); | |
| 222 } | |
| 223 | |
| 224 public static void addPageProlog(StringBuffer buffer) { | |
| 225 insertPageProlog(buffer, buffer.length()); | |
| 226 } | |
| 227 | |
| 228 public static void addPageEpilog(StringBuffer buffer) { | |
| 229 buffer.append("</font></body></html>"); //$NON-NLS-1$ | |
| 230 } | |
| 231 | |
| 232 public static void startBulletList(StringBuffer buffer) { | |
| 233 buffer.append("<ul>"); //$NON-NLS-1$ | |
| 234 } | |
| 235 | |
| 236 public static void endBulletList(StringBuffer buffer) { | |
| 237 buffer.append("</ul>"); //$NON-NLS-1$ | |
| 238 } | |
| 239 | |
| 240 public static void addBullet(StringBuffer buffer, String bullet) { | |
| 241 if (bullet !is null) { | |
| 242 buffer.append("<li>"); //$NON-NLS-1$ | |
| 243 buffer.append(bullet); | |
| 244 buffer.append("</li>"); //$NON-NLS-1$ | |
| 245 } | |
| 246 } | |
| 247 | |
| 248 public static void addSmallHeader(StringBuffer buffer, String header) { | |
| 249 if (header !is null) { | |
| 250 buffer.append("<h5>"); //$NON-NLS-1$ | |
| 251 buffer.append(header); | |
| 252 buffer.append("</h5>"); //$NON-NLS-1$ | |
| 253 } | |
| 254 } | |
| 255 | |
| 256 public static void addParagraph(StringBuffer buffer, String paragraph) { | |
| 257 if (paragraph !is null) { | |
| 258 buffer.append("<p>"); //$NON-NLS-1$ | |
| 259 buffer.append(paragraph); | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 public static void addParagraph(StringBuffer buffer, Reader paragraphReader) { | |
| 264 if (paragraphReader !is null) | |
| 265 addParagraph(buffer, read(paragraphReader)); | |
| 266 } | |
| 150 | 267 |
| 129 | 268 /** |
| 269 * Replaces the following style attributes of the font definition of the <code>html</code> | |
| 270 * element: | |
| 271 * <ul> | |
| 272 * <li>font-size</li> | |
| 273 * <li>font-weight</li> | |
| 274 * <li>font-style</li> | |
| 275 * <li>font-family</li> | |
| 276 * </ul> | |
| 277 * The font's name is used as font family, a <code>sans-serif</code> default font family is | |
| 278 * appended for the case that the given font name is not available. | |
| 279 * <p> | |
| 280 * If the listed font attributes are not contained in the passed style list, nothing happens. | |
| 281 * </p> | |
| 150 | 282 * |
| 129 | 283 * @param styles CSS style definitions |
| 284 * @param fontData the font information to use | |
| 285 * @return the modified style definitions | |
| 286 * @since 3.3 | |
| 287 */ | |
| 288 public static String convertTopLevelFont(String styles, FontData fontData) { | |
| 289 bool bold= (fontData.getStyle() & DWT.BOLD) !is 0; | |
| 290 bool italic= (fontData.getStyle() & DWT.ITALIC) !is 0; | |
| 150 | 291 |
| 129 | 292 // See: https://bugs.eclipse.org/bugs/show_bug.cgi?id=155993 |
| 293 String size= Integer.toString(fontData.getHeight()) + ("carbon".equals(DWT.getPlatform()) ? "px" : "pt"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
| 150 | 294 |
| 129 | 295 String family= "'" + fontData.getName() + "',sans-serif"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 296 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-size:\\s*)\\d+pt(\\;?.*\\})", "$1" + size + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
| 297 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-weight:\\s*)\\w+(\\;?.*\\})", "$1" + (bold ? "bold" : "normal") + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ | |
| 298 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-style:\\s*)\\w+(\\;?.*\\})", "$1" + (italic ? "italic" : "normal") + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ | |
| 299 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-family:\\s*).+?(;.*\\})", "$1" + family + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
| 300 return styles; | |
| 301 } | |
| 302 } |