Mercurial > projects > dwt-addons
view dwtx/jface/internal/text/html/HTMLPrinter.d @ 172:d994a8b2cdf7
again compile fixes
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 10 Sep 2008 23:14:02 +0200 |
parents | 1a5b8f8129df |
children |
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/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.jface.internal.text.html.HTMLPrinter; import dwtx.jface.internal.text.html.HTML2TextReader; // packageimport import dwtx.jface.internal.text.html.BrowserInformationControl; // packageimport import dwtx.jface.internal.text.html.SubstitutionTextReader; // packageimport import dwtx.jface.internal.text.html.HTMLTextPresenter; // packageimport import dwtx.jface.internal.text.html.BrowserInput; // packageimport import dwtx.jface.internal.text.html.SingleCharReader; // packageimport import dwtx.jface.internal.text.html.BrowserInformationControlInput; // packageimport import dwtx.jface.internal.text.html.HTMLMessages; // packageimport import dwt.dwthelper.utils; import dwtx.dwtxhelper.URL; import dwt.DWT; import dwt.DWTError; import dwt.graphics.FontData; import dwt.graphics.RGB; import dwt.widgets.Display; /** * Provides a set of convenience methods for creating HTML pages. * <p> * Moved into this package from <code>dwtx.jface.internal.text.revisions</code>.</p> */ public class HTMLPrinter { private static RGB BG_COLOR_RGB_; private static RGB FG_COLOR_RGB_; private static RGB BG_COLOR_RGB(){ COLOR_RGB_init(); return BG_COLOR_RGB_; } private static RGB FG_COLOR_RGB(){ COLOR_RGB_init(); return FG_COLOR_RGB_; } private static bool COLOR_RGB_init_complete = false; private static void COLOR_RGB_init() { if( COLOR_RGB_init_complete ){ return; } COLOR_RGB_init_complete = true; BG_COLOR_RGB_= new RGB(255, 255, 225); // RGB value of info bg color on WindowsXP FG_COLOR_RGB_= new RGB(0, 0, 0); // RGB value of info fg color on WindowsXP Display display= Display.getDefault(); if (display !is null && !display.isDisposed()) { try { display.asyncExec( dgRunnable( (Display display_){ BG_COLOR_RGB_= display_.getSystemColor(DWT.COLOR_INFO_BACKGROUND).getRGB(); FG_COLOR_RGB_= display_.getSystemColor(DWT.COLOR_INFO_FOREGROUND).getRGB(); }, display )); } catch (DWTError err) { // see: https://bugs.eclipse.org/bugs/show_bug.cgi?id=45294 if (err.code !is DWT.ERROR_DEVICE_DISPOSED) throw err; } } } private this() { } private static String replace(String text, char c, String s) { int previous= 0; int current= text.indexOf(c, previous); if (current is -1) return text; StringBuffer buffer= new StringBuffer(); while (current > -1) { buffer.append(text.substring(previous, current)); buffer.append(s); previous= current + 1; current= text.indexOf(c, previous); } buffer.append(text.substring(previous)); return buffer.toString(); } public static String convertToHTMLContent(String content) { content= replace(content, '&', "&"); //$NON-NLS-1$ content= replace(content, '"', """); //$NON-NLS-1$ content= replace(content, '<', "<"); //$NON-NLS-1$ return replace(content, '>', ">"); //$NON-NLS-1$ } public static String read(Reader rd) { StringBuffer buffer= new StringBuffer(); char[] readBuffer= new char[2048]; try { int n= rd.read(readBuffer); while (n > 0) { buffer.append(readBuffer[ 0 .. n ]); n= rd.read(readBuffer); } return buffer.toString(); } catch (IOException x) { } return null; } public static void insertPageProlog(StringBuffer buffer, int position, RGB fgRGB, RGB bgRGB, String styleSheet) { if (fgRGB is null) fgRGB= FG_COLOR_RGB; if (bgRGB is null) bgRGB= BG_COLOR_RGB; StringBuffer pageProlog= new StringBuffer(300); pageProlog.append("<html>"); //$NON-NLS-1$ appendStyleSheetURL(pageProlog, styleSheet); appendColors(pageProlog, fgRGB, bgRGB); buffer.select(position,0); buffer.replace(pageProlog.toString()); } private static void appendColors(StringBuffer pageProlog, RGB fgRGB, RGB bgRGB) { pageProlog.append("<body text=\""); //$NON-NLS-1$ appendColor(pageProlog, fgRGB); pageProlog.append("\" bgcolor=\""); //$NON-NLS-1$ appendColor(pageProlog, bgRGB); pageProlog.append("\">"); //$NON-NLS-1$ } private static void appendColor(StringBuffer buffer, RGB rgb) { buffer.append('#'); appendAsHexString(buffer, rgb.red); appendAsHexString(buffer, rgb.green); appendAsHexString(buffer, rgb.blue); } private static void appendAsHexString(StringBuffer buffer, int intValue) { String hexValue= Integer.toHexString(intValue); if (hexValue.length() is 1) buffer.append('0'); buffer.append(hexValue); } public static void insertStyles(StringBuffer buffer, String[] styles) { if (styles is null || styles.length is 0) return; StringBuffer styleBuf= new StringBuffer(10 * styles.length); for (int i= 0; styles !is null && i < styles.length; i++) { styleBuf.append(" style=\""); //$NON-NLS-1$ styleBuf.append(styles[i]); styleBuf.append('"'); } // Find insertion index // a) within existing body tag with trailing space int index= buffer.slice().indexOf("<body "); //$NON-NLS-1$ if (index !is -1) { buffer.select(index+5, 0); buffer.replace(styleBuf); return; } // b) within existing body tag without attributes index= buffer.slice().indexOf("<body>"); //$NON-NLS-1$ if (index !is -1) { buffer.select(index+5, 0); buffer.replace( " " ); buffer.select(index+6, 0); buffer.replace(styleBuf); return; } } private static void appendStyleSheetURL(StringBuffer buffer, String styleSheet) { if (styleSheet is null) return; buffer.append("<head><style CHARSET=\"ISO-8859-1\" TYPE=\"text/css\">"); //$NON-NLS-1$ buffer.append(styleSheet); buffer.append("</style></head>"); //$NON-NLS-1$ } private static void appendStyleSheetURL(StringBuffer buffer, URL styleSheetURL) { if (styleSheetURL is null) return; buffer.append("<head>"); //$NON-NLS-1$ buffer.append("<LINK REL=\"stylesheet\" HREF= \""); //$NON-NLS-1$ buffer.append(styleSheetURL.toString()); buffer.append("\" CHARSET=\"ISO-8859-1\" TYPE=\"text/css\">"); //$NON-NLS-1$ buffer.append("</head>"); //$NON-NLS-1$ } public static void insertPageProlog(StringBuffer buffer, int position) { StringBuffer pageProlog= new StringBuffer(60); pageProlog.append("<html>"); //$NON-NLS-1$ appendColors(pageProlog, FG_COLOR_RGB, BG_COLOR_RGB); buffer.select(position, 0); buffer.replace(pageProlog.toString()); } public static void insertPageProlog(StringBuffer buffer, int position, URL styleSheetURL) { StringBuffer pageProlog= new StringBuffer(300); pageProlog.append("<html>"); //$NON-NLS-1$ appendStyleSheetURL(pageProlog, styleSheetURL); appendColors(pageProlog, FG_COLOR_RGB, BG_COLOR_RGB); buffer.select(position, 0); buffer.replace(pageProlog.toString()); } public static void insertPageProlog(StringBuffer buffer, int position, String styleSheet) { insertPageProlog(buffer, position, null, null, styleSheet); } public static void addPageProlog(StringBuffer buffer) { insertPageProlog(buffer, buffer.length()); } public static void addPageEpilog(StringBuffer buffer) { buffer.append("</font></body></html>"); //$NON-NLS-1$ } public static void startBulletList(StringBuffer buffer) { buffer.append("<ul>"); //$NON-NLS-1$ } public static void endBulletList(StringBuffer buffer) { buffer.append("</ul>"); //$NON-NLS-1$ } public static void addBullet(StringBuffer buffer, String bullet) { if (bullet !is null) { buffer.append("<li>"); //$NON-NLS-1$ buffer.append(bullet); buffer.append("</li>"); //$NON-NLS-1$ } } public static void addSmallHeader(StringBuffer buffer, String header) { if (header !is null) { buffer.append("<h5>"); //$NON-NLS-1$ buffer.append(header); buffer.append("</h5>"); //$NON-NLS-1$ } } public static void addParagraph(StringBuffer buffer, String paragraph) { if (paragraph !is null) { buffer.append("<p>"); //$NON-NLS-1$ buffer.append(paragraph); } } public static void addParagraph(StringBuffer buffer, Reader paragraphReader) { if (paragraphReader !is null) addParagraph(buffer, read(paragraphReader)); } /** * Replaces the following style attributes of the font definition of the <code>html</code> * element: * <ul> * <li>font-size</li> * <li>font-weight</li> * <li>font-style</li> * <li>font-family</li> * </ul> * The font's name is used as font family, a <code>sans-serif</code> default font family is * appended for the case that the given font name is not available. * <p> * If the listed font attributes are not contained in the passed style list, nothing happens. * </p> * * @param styles CSS style definitions * @param fontData the font information to use * @return the modified style definitions * @since 3.3 */ public static String convertTopLevelFont(String styles, FontData fontData) { bool bold= (fontData.getStyle() & DWT.BOLD) !is 0; bool italic= (fontData.getStyle() & DWT.ITALIC) !is 0; // See: https://bugs.eclipse.org/bugs/show_bug.cgi?id=155993 String size= Integer.toString(fontData.getHeight()) ~ ("carbon".equals(DWT.getPlatform()) ? "px" : "pt"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ String family= "'" ~ fontData.getName() ~ "',sans-serif"; //$NON-NLS-1$ //$NON-NLS-2$ styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-size:\\s*)\\d+pt(\\;?.*\\})", "$1" ~ size ~ "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-weight:\\s*)\\w+(\\;?.*\\})", "$1" ~ (bold ? "bold" : "normal") ~ "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-style:\\s*)\\w+(\\;?.*\\})", "$1" ~ (italic ? "italic" : "normal") ~ "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ styles= styles.replaceFirst("(html\\s*\\{.*(?:\\s|;)font-family:\\s*).+?(;.*\\})", "$1" ~ family ~ "$2"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ return styles; } }