Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/html/HTMLPrinter.d @ 150:5cf141e43417
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 24 Aug 2008 23:05:26 +0200 |
| parents | 65801ad2b265 |
| children | 25f1f92fa3df |
| 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; |
| 26 | |
| 27 import java.io.IOException; | |
| 28 import java.io.Reader; | |
| 29 import java.net.URL; | |
| 30 | |
| 31 import dwt.DWT; | |
| 32 import dwt.DWTError; | |
| 33 import dwt.graphics.FontData; | |
| 34 import dwt.graphics.RGB; | |
| 35 import dwt.widgets.Display; | |
| 36 | |
| 37 | |
| 38 /** | |
| 39 * Provides a set of convenience methods for creating HTML pages. | |
| 40 * <p> | |
| 41 * Moved into this package from <code>dwtx.jface.internal.text.revisions</code>.</p> | |
| 42 */ | |
| 43 public class HTMLPrinter { | |
| 44 | |
| 45 private static RGB BG_COLOR_RGB= new RGB(255, 255, 225); // RGB value of info bg color on WindowsXP | |
| 46 private static RGB FG_COLOR_RGB= new RGB(0, 0, 0); // RGB value of info fg color on WindowsXP | |
| 47 | |
| 48 | |
| 150 | 49 static this() { |
| 50 implMissing( __FILE__, __LINE__ ); // lazy init needed for Display | |
| 129 | 51 final Display display= Display.getDefault(); |
| 52 if (display !is null && !display.isDisposed()) { | |
| 53 try { | |
| 135 | 54 display.asyncExec(new class() Runnable { |
| 129 | 55 /* |
| 56 * @see java.lang.Runnable#run() | |
| 57 */ | |
| 58 public void run() { | |
| 59 BG_COLOR_RGB= display.getSystemColor(DWT.COLOR_INFO_BACKGROUND).getRGB(); | |
| 60 FG_COLOR_RGB= display.getSystemColor(DWT.COLOR_INFO_FOREGROUND).getRGB(); | |
| 61 } | |
| 62 }); | |
| 63 } catch (DWTError err) { | |
| 64 // see: https://bugs.eclipse.org/bugs/show_bug.cgi?id=45294 | |
| 65 if (err.code !is DWT.ERROR_DEVICE_DISPOSED) | |
| 66 throw err; | |
| 67 } | |
| 68 } | |
| 69 } | |
| 70 | |
|
133
7d818bd32d63
Fix ctors to this with gvim regexp
Frank Benoit <benoit@tionex.de>
parents:
131
diff
changeset
|
71 private this() { |
| 129 | 72 } |
| 73 | |
| 74 private static String replace(String text, char c, String s) { | |
| 75 | |
| 76 int previous= 0; | |
| 77 int current= text.indexOf(c, previous); | |
| 78 | |
| 79 if (current is -1) | |
| 80 return text; | |
| 81 | |
| 82 StringBuffer buffer= new StringBuffer(); | |
| 83 while (current > -1) { | |
| 84 buffer.append(text.substring(previous, current)); | |
| 85 buffer.append(s); | |
| 86 previous= current + 1; | |
| 87 current= text.indexOf(c, previous); | |
| 88 } | |
| 89 buffer.append(text.substring(previous)); | |
| 90 | |
| 91 return buffer.toString(); | |
| 92 } | |
| 93 | |
| 94 public static String convertToHTMLContent(String content) { | |
| 95 content= replace(content, '&', "&"); //$NON-NLS-1$ | |
| 96 content= replace(content, '"', """); //$NON-NLS-1$ | |
| 97 content= replace(content, '<', "<"); //$NON-NLS-1$ | |
| 98 return replace(content, '>', ">"); //$NON-NLS-1$ | |
| 99 } | |
| 100 | |
| 101 public static String read(Reader rd) { | |
| 102 | |
| 103 StringBuffer buffer= new StringBuffer(); | |
| 104 char[] readBuffer= new char[2048]; | |
| 105 | |
| 106 try { | |
| 107 int n= rd.read(readBuffer); | |
| 108 while (n > 0) { | |
| 109 buffer.append(readBuffer, 0, n); | |
| 110 n= rd.read(readBuffer); | |
| 111 } | |
| 112 return buffer.toString(); | |
| 113 } catch (IOException x) { | |
| 114 } | |
| 115 | |
| 116 return null; | |
| 117 } | |
| 118 | |
| 119 public static void insertPageProlog(StringBuffer buffer, int position, RGB fgRGB, RGB bgRGB, String styleSheet) { | |
| 120 if (fgRGB is null) | |
| 121 fgRGB= FG_COLOR_RGB; | |
| 122 if (bgRGB is null) | |
| 123 bgRGB= BG_COLOR_RGB; | |
| 124 | |
| 125 StringBuffer pageProlog= new StringBuffer(300); | |
| 126 | |
| 127 pageProlog.append("<html>"); //$NON-NLS-1$ | |
| 128 | |
| 129 appendStyleSheetURL(pageProlog, styleSheet); | |
| 130 | |
| 131 appendColors(pageProlog, fgRGB, bgRGB); | |
| 132 | |
| 133 buffer.insert(position, pageProlog.toString()); | |
| 134 } | |
| 135 | |
| 136 private static void appendColors(StringBuffer pageProlog, RGB fgRGB, RGB bgRGB) { | |
| 137 pageProlog.append("<body text=\""); //$NON-NLS-1$ | |
| 138 appendColor(pageProlog, fgRGB); | |
| 139 pageProlog.append("\" bgcolor=\""); //$NON-NLS-1$ | |
| 140 appendColor(pageProlog, bgRGB); | |
| 141 pageProlog.append("\">"); //$NON-NLS-1$ | |
| 142 } | |
| 143 | |
| 144 private static void appendColor(StringBuffer buffer, RGB rgb) { | |
| 145 buffer.append('#'); | |
| 146 appendAsHexString(buffer, rgb.red); | |
| 147 appendAsHexString(buffer, rgb.green); | |
| 148 appendAsHexString(buffer, rgb.blue); | |
| 149 } | |
| 150 | |
| 151 private static void appendAsHexString(StringBuffer buffer, int intValue) { | |
| 152 String hexValue= Integer.toHexString(intValue); | |
| 153 if (hexValue.length() is 1) | |
| 154 buffer.append('0'); | |
| 155 buffer.append(hexValue); | |
| 156 } | |
| 157 | |
| 158 public static void insertStyles(StringBuffer buffer, String[] styles) { | |
| 159 if (styles is null || styles.length is 0) | |
| 160 return; | |
| 161 | |
| 162 StringBuffer styleBuf= new StringBuffer(10 * styles.length); | |
| 163 for (int i= 0; styles !is null && i < styles.length; i++) { | |
| 164 styleBuf.append(" style=\""); //$NON-NLS-1$ | |
| 165 styleBuf.append(styles[i]); | |
| 166 styleBuf.append('"'); | |
| 167 } | |
| 168 | |
| 169 // Find insertion index | |
| 170 // a) within existing body tag with trailing space | |
| 171 int index= buffer.indexOf("<body "); //$NON-NLS-1$ | |
| 172 if (index !is -1) { | |
| 173 buffer.insert(index+5, styleBuf); | |
| 174 return; | |
| 175 } | |
| 176 | |
| 177 // b) within existing body tag without attributes | |
| 178 index= buffer.indexOf("<body>"); //$NON-NLS-1$ | |
| 179 if (index !is -1) { | |
| 180 buffer.insert(index+5, ' '); | |
| 181 buffer.insert(index+6, styleBuf); | |
| 182 return; | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 private static void appendStyleSheetURL(StringBuffer buffer, String styleSheet) { | |
| 187 if (styleSheet is null) | |
| 188 return; | |
| 150 | 189 |
| 129 | 190 buffer.append("<head><style CHARSET=\"ISO-8859-1\" TYPE=\"text/css\">"); //$NON-NLS-1$ |
| 191 buffer.append(styleSheet); | |
| 192 buffer.append("</style></head>"); //$NON-NLS-1$ | |
| 193 } | |
| 150 | 194 |
| 129 | 195 private static void appendStyleSheetURL(StringBuffer buffer, URL styleSheetURL) { |
| 196 if (styleSheetURL is null) | |
| 197 return; | |
| 198 | |
| 199 buffer.append("<head>"); //$NON-NLS-1$ | |
| 200 | |
| 201 buffer.append("<LINK REL=\"stylesheet\" HREF= \""); //$NON-NLS-1$ | |
| 202 buffer.append(styleSheetURL); | |
| 203 buffer.append("\" CHARSET=\"ISO-8859-1\" TYPE=\"text/css\">"); //$NON-NLS-1$ | |
| 204 | |
| 205 buffer.append("</head>"); //$NON-NLS-1$ | |
| 206 } | |
| 207 | |
| 208 public static void insertPageProlog(StringBuffer buffer, int position) { | |
| 209 StringBuffer pageProlog= new StringBuffer(60); | |
| 210 pageProlog.append("<html>"); //$NON-NLS-1$ | |
| 211 appendColors(pageProlog, FG_COLOR_RGB, BG_COLOR_RGB); | |
| 212 buffer.insert(position, pageProlog.toString()); | |
| 213 } | |
| 214 | |
| 215 public static void insertPageProlog(StringBuffer buffer, int position, URL styleSheetURL) { | |
| 216 StringBuffer pageProlog= new StringBuffer(300); | |
| 217 pageProlog.append("<html>"); //$NON-NLS-1$ | |
| 218 appendStyleSheetURL(pageProlog, styleSheetURL); | |
| 219 appendColors(pageProlog, FG_COLOR_RGB, BG_COLOR_RGB); | |
| 220 buffer.insert(position, pageProlog.toString()); | |
| 221 } | |
| 150 | 222 |
| 129 | 223 public static void insertPageProlog(StringBuffer buffer, int position, String styleSheet) { |
| 224 insertPageProlog(buffer, position, null, null, styleSheet); | |
| 225 } | |
| 226 | |
| 227 public static void addPageProlog(StringBuffer buffer) { | |
| 228 insertPageProlog(buffer, buffer.length()); | |
| 229 } | |
| 230 | |
| 231 public static void addPageEpilog(StringBuffer buffer) { | |
| 232 buffer.append("</font></body></html>"); //$NON-NLS-1$ | |
| 233 } | |
| 234 | |
| 235 public static void startBulletList(StringBuffer buffer) { | |
| 236 buffer.append("<ul>"); //$NON-NLS-1$ | |
| 237 } | |
| 238 | |
| 239 public static void endBulletList(StringBuffer buffer) { | |
| 240 buffer.append("</ul>"); //$NON-NLS-1$ | |
| 241 } | |
| 242 | |
| 243 public static void addBullet(StringBuffer buffer, String bullet) { | |
| 244 if (bullet !is null) { | |
| 245 buffer.append("<li>"); //$NON-NLS-1$ | |
| 246 buffer.append(bullet); | |
| 247 buffer.append("</li>"); //$NON-NLS-1$ | |
| 248 } | |
| 249 } | |
| 250 | |
| 251 public static void addSmallHeader(StringBuffer buffer, String header) { | |
| 252 if (header !is null) { | |
| 253 buffer.append("<h5>"); //$NON-NLS-1$ | |
| 254 buffer.append(header); | |
| 255 buffer.append("</h5>"); //$NON-NLS-1$ | |
| 256 } | |
| 257 } | |
| 258 | |
| 259 public static void addParagraph(StringBuffer buffer, String paragraph) { | |
| 260 if (paragraph !is null) { | |
| 261 buffer.append("<p>"); //$NON-NLS-1$ | |
| 262 buffer.append(paragraph); | |
| 263 } | |
| 264 } | |
| 265 | |
| 266 public static void addParagraph(StringBuffer buffer, Reader paragraphReader) { | |
| 267 if (paragraphReader !is null) | |
| 268 addParagraph(buffer, read(paragraphReader)); | |
| 269 } | |
| 150 | 270 |
| 129 | 271 /** |
| 272 * Replaces the following style attributes of the font definition of the <code>html</code> | |
| 273 * element: | |
| 274 * <ul> | |
| 275 * <li>font-size</li> | |
| 276 * <li>font-weight</li> | |
| 277 * <li>font-style</li> | |
| 278 * <li>font-family</li> | |
| 279 * </ul> | |
| 280 * The font's name is used as font family, a <code>sans-serif</code> default font family is | |
| 281 * appended for the case that the given font name is not available. | |
| 282 * <p> | |
| 283 * If the listed font attributes are not contained in the passed style list, nothing happens. | |
| 284 * </p> | |
| 150 | 285 * |
| 129 | 286 * @param styles CSS style definitions |
| 287 * @param fontData the font information to use | |
| 288 * @return the modified style definitions | |
| 289 * @since 3.3 | |
| 290 */ | |
| 291 public static String convertTopLevelFont(String styles, FontData fontData) { | |
| 292 bool bold= (fontData.getStyle() & DWT.BOLD) !is 0; | |
| 293 bool italic= (fontData.getStyle() & DWT.ITALIC) !is 0; | |
| 150 | 294 |
| 129 | 295 // See: https://bugs.eclipse.org/bugs/show_bug.cgi?id=155993 |
| 296 String size= Integer.toString(fontData.getHeight()) + ("carbon".equals(DWT.getPlatform()) ? "px" : "pt"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
| 150 | 297 |
| 129 | 298 String family= "'" + fontData.getName() + "',sans-serif"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 299 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-size:\\s*)\\d+pt(\\;?.*\\})", "$1" + size + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
| 300 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-weight:\\s*)\\w+(\\;?.*\\})", "$1" + (bold ? "bold" : "normal") + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ | |
| 301 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-style:\\s*)\\w+(\\;?.*\\})", "$1" + (italic ? "italic" : "normal") + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ | |
| 302 styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-family:\\s*).+?(;.*\\})", "$1" + family + "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
| 303 return styles; | |
| 304 } | |
| 305 } |