htmlwriter.java

处理PDF

                }
                // end tag
                addTabs(indent);
                writeEnd(HtmlTags.DIV);
                currentfont.pop();
                return;
            }
            case Element.SECTION:
            case Element.CHAPTER:
            {
                // part of the start tag + contents
                writeSection((Section) element, indent);
                return;
            }
            case Element.LIST:
            {
                List list = (List) element;
                // start tag
                addTabs(indent);
                if (list.isNumbered()) {
                    writeStart(HtmlTags.ORDEREDLIST);
                }
                else {
                    writeStart(HtmlTags.UNORDEREDLIST);
                }
                writeMarkupAttributes(markup);
                os.write(GT);
                // contents
                for (Iterator i = list.getItems().iterator(); i.hasNext(); ) {
                    write((Element) i.next(), indent + 1);
                }
                // end tag
                addTabs(indent);
                if (list.isNumbered()) {
                    writeEnd(HtmlTags.ORDEREDLIST);
                }
                else {
                    writeEnd(HtmlTags.UNORDEREDLIST);
                }
                return;
            }
            case Element.LISTITEM:
            {
                ListItem listItem = (ListItem) element;
                styleAttributes = new Properties();
                if (listItem.hasLeading()) styleAttributes.setProperty(Markup.CSS_KEY_LINEHEIGHT, listItem.getTotalLeading() + "pt");
                
                // start tag
                addTabs(indent);
                writeStart(HtmlTags.LISTITEM);
                writeMarkupAttributes(markup);
                write(listItem.getFont(), styleAttributes);
                os.write(GT);
                currentfont.push(listItem.getFont());
                // contents
                for (Iterator i = listItem.iterator(); i.hasNext(); ) {
                    write((Element) i.next(), indent + 1);
                }
                // end tag
                addTabs(indent);
                writeEnd(HtmlTags.LISTITEM);
                currentfont.pop();
                return;
            }
            case Element.CELL:
            {
                Cell cell = (Cell) element;
                
                // start tag
                addTabs(indent);
                if (cell.isHeader()) {
                    writeStart(HtmlTags.HEADERCELL);
                }
                else {
                    writeStart(HtmlTags.CELL);
                }
                writeMarkupAttributes(markup);
                if (cell.getBorderWidth() != Rectangle.UNDEFINED) {
                    write(HtmlTags.BORDERWIDTH, String.valueOf(cell.getBorderWidth()));
                }
                if (cell.getBorderColor() != null) {
                    write(HtmlTags.BORDERCOLOR, HtmlEncoder.encode(cell.getBorderColor()));
                }
                if (cell.getBackgroundColor() != null) {
                    write(HtmlTags.BACKGROUNDCOLOR, HtmlEncoder.encode(cell.getBackgroundColor()));
                }
                String alignment = HtmlEncoder.getAlignment(cell.getHorizontalAlignment());
                if (!"".equals(alignment)) {
                    write(HtmlTags.HORIZONTALALIGN, alignment);
                }
                alignment = HtmlEncoder.getAlignment(cell.getVerticalAlignment());
                if (!"".equals(alignment)) {
                    write(HtmlTags.VERTICALALIGN, alignment);
                }
                if (cell.getWidthAsString() != null) {
                    write(HtmlTags.WIDTH, cell.getWidthAsString());
                }
                if (cell.getColspan() != 1) {
                    write(HtmlTags.COLSPAN, String.valueOf(cell.getColspan()));
                }
                if (cell.getRowspan() != 1) {
                    write(HtmlTags.ROWSPAN, String.valueOf(cell.getRowspan()));
                }
                if (cell.getMaxLines() == 1) {
                	write(HtmlTags.STYLE, "white-space: nowrap;");
                }
                os.write(GT);
                // contents
                if (cell.isEmpty()) {
                    write(NBSP);
                } else {
                    for (Iterator i = cell.getElements(); i.hasNext(); ) {
                        write((Element) i.next(), indent + 1);
                    }
                }
                // end tag
                addTabs(indent);
                if (cell.isHeader()) {
                    writeEnd(HtmlTags.HEADERCELL);
                }
                else {
                    writeEnd(HtmlTags.CELL);
                }
                return;
            }
            case Element.ROW:
            {
                Row row = (Row) element;
                
                // start tag
                addTabs(indent);
                writeStart(HtmlTags.ROW);
                writeMarkupAttributes(markup);
                os.write(GT);
                // contents
                Element cell;
                for (int i = 0; i < row.getColumns(); i++) {
                    if ((cell = (Element)row.getCell(i)) != null) {
                        write(cell, indent + 1);
                    }
                }
                // end tag
                addTabs(indent);
                writeEnd(HtmlTags.ROW);
                return;
            }
            case Element.TABLE:
            {
            	Table table;
            	try {
            		table = (Table) element;
            	}
            	catch(ClassCastException cce) {
            		try {
						table = ((SimpleTable)element).createTable();
					} catch (BadElementException e) {
						throw new ExceptionConverter(e);
					}
            	}
                table.complete();
                // start tag
                addTabs(indent);
                writeStart(HtmlTags.TABLE);
                writeMarkupAttributes(markup);
                os.write(SPACE);
                write(HtmlTags.WIDTH);
                os.write(EQUALS);
                os.write(QUOTE);
                write(String.valueOf(table.getWidth()));
                if (!table.isLocked()){
                    write("%");
                }
                os.write(QUOTE);
                String alignment = HtmlEncoder.getAlignment(table.getAlignment());
                if (!"".equals(alignment)) {
                    write(HtmlTags.ALIGN, alignment);
                }
                write(HtmlTags.CELLPADDING, String.valueOf(table.getPadding()));
                write(HtmlTags.CELLSPACING, String.valueOf(table.getSpacing()));
                if (table.getBorderWidth() != Rectangle.UNDEFINED) {
                    write(HtmlTags.BORDERWIDTH, String.valueOf(table.getBorderWidth()));
                }
                if (table.getBorderColor() != null) {
                    write(HtmlTags.BORDERCOLOR, HtmlEncoder.encode(table.getBorderColor()));
                }
                if (table.getBackgroundColor() != null) {
                    write(HtmlTags.BACKGROUNDCOLOR, HtmlEncoder.encode(table.getBackgroundColor()));
                }
                os.write(GT);
                // contents
                Row row;
                for (Iterator iterator = table.iterator(); iterator.hasNext(); ) {
                    row = (Row) iterator.next();
                    write(row, indent + 1);
                }
                // end tag
                addTabs(indent);
                writeEnd(HtmlTags.TABLE);
                return;
            }
            case Element.ANNOTATION:
            {
                Annotation annotation = (Annotation) element;
                writeComment(annotation.title() + ": " + annotation.content());
                return;
            }
            case Element.IMGRAW:
            case Element.JPEG:
            case Element.JPEG2000:
            case Element.IMGTEMPLATE:
            {
                Image image = (Image) element;
                if (image.getUrl() == null) {
                    return;
                }
                
                // start tag
                addTabs(indent);
                writeStart(HtmlTags.IMAGE);
                String path = image.getUrl().toString();
                if (imagepath != null) {
                    if (path.indexOf('/') > 0) {
                        path = imagepath + path.substring(path.lastIndexOf('/') + 1);
                    }
                    else {
                        path = imagepath + path;
                    }
                }
                write(HtmlTags.URL, path);
                if ((image.getAlignment() & Image.RIGHT) > 0) {
                    write(HtmlTags.ALIGN, HtmlTags.ALIGN_RIGHT);
                }
                else if ((image.getAlignment() & Image.MIDDLE) > 0) {
                    write(HtmlTags.ALIGN, HtmlTags.ALIGN_MIDDLE);
                }
                else {
                    write(HtmlTags.ALIGN, HtmlTags.ALIGN_LEFT);
                }
                if (image.getAlt() != null) {
                    write(HtmlTags.ALT, image.getAlt());
                }
                write(HtmlTags.PLAINWIDTH, String.valueOf(image.getScaledWidth()));
                write(HtmlTags.PLAINHEIGHT, String.valueOf(image.getScaledHeight()));
                writeMarkupAttributes(markup);
                writeEnd();
                return;
            }
            
            default:
                return;
        }
    }
    
/**
 * Writes the HTML representation of a section.
 *
 * @param   section     the section to write
 * @param   indent      the indentation
 * @throws IOException
 */
    
    protected void writeSection(Section section, int indent) throws IOException {
        if (section.getTitle() != null) {
            int depth = section.getDepth() - 1;
            if (depth > 5) {
                depth = 5;
            }
            Properties styleAttributes = new Properties();
            if (section.getTitle().hasLeading()) styleAttributes.setProperty(Markup.CSS_KEY_LINEHEIGHT, section.getTitle().getTotalLeading() + "pt");
            // start tag
            addTabs(indent);
            writeStart(HtmlTags.H[depth]);
            write(section.getTitle().getFont(), styleAttributes);
            String alignment = HtmlEncoder.getAlignment(section.getTitle().getAlignment());
            if (!"".equals(alignment)) {
                write(HtmlTags.ALIGN, alignment);
            }
            writeMarkupAttributes(markup);
            os.write(GT);
            currentfont.push(section.getTitle().getFont());
            // contents
            for (Iterator i = section.getTitle().iterator(); i.hasNext(); ) {
                write((Element)i.next(), indent + 1);
            }
            // end tag
            addTabs(indent);
            writeEnd(HtmlTags.H[depth]);
            currentfont.pop();
        }
        for (Iterator i = section.iterator(); i.hasNext(); ) {
            write((Element) i.next(), indent);
        }
    }
    
    /**
     * Writes the representation of a <CODE>Font</CODE>.
     *
     * @param font              a <CODE>Font</CODE>
     * @param styleAttributes   the style of the font
     * @throws IOException
     */
    
    protected void write(Font font, Properties styleAttributes) throws IOException {
        if (font == null || !isOtherFont(font) /* || styleAttributes == null*/) return;
        write(" ");
        write(HtmlTags.STYLE);
        write("=\"");
        if (styleAttributes != null) {
            String key;
            for (Enumeration e = styleAttributes.propertyNames(); e.hasMoreElements(); ) {
                key = (String)e.nextElement();
                writeCssProperty(key, styleAttributes.getProperty(key));
            }
        }
        if (isOtherFont(font)) {
            writeCssProperty(Markup.CSS_KEY_FONTFAMILY, font.getFamilyname());
            
            if (font.getSize() != Font.UNDEFINED) {
                writeCssProperty(Markup.CSS_KEY_FONTSIZE, font.getSize() + "pt");
            }
            if (font.getColor() != null) {
                writeCssProperty(Markup.CSS_KEY_COLOR, HtmlEncoder.encode(font.getColor()));
            }
            
            int fontstyle = font.getStyle();
            BaseFont bf = font.getBaseFont();
            if (bf != null) {
                String ps = bf.getPostscriptFontName().toLowerCase();
                if (ps.indexOf("bold") >= 0) {
                    if (fontstyle == Font.UNDEFINED)
                        fontstyle = 0;
                    fontstyle |= Font.BOLD;
                }
                if (ps.indexOf("italic") >= 0 || ps.indexOf("oblique") >= 0) {
                    if (fontstyle == Font.UNDEFINED)
                        fontstyle = 0;
                    fontstyle |= Font.ITALIC;
                }
            }
            if (fontstyle != Font.UNDEFINED && fontstyle != Font.NORMAL) {
                switch (fontstyle & Font.BOLDITALIC) {
                    case Font.BOLD:
                        writeCssProperty(Markup.CSS_KEY_FONTWEIGHT, Markup.CSS_VALUE_BOLD);
                        break;
                    case Font.ITALIC:
                        writeCssProperty(Markup.CSS_KEY_FONTSTYLE, Markup.CSS_VALUE_ITALIC);
                        break;
                    case Font.BOLDITALIC:
                        writeCssProperty(Markup.CSS_KEY_FONTWEIGHT, Markup.CSS_VALUE_BOLD);
                        writeCssProperty(Markup.CSS_KEY_FONTSTYLE, Markup.CSS_VALUE_ITALIC);
                        break;
                }
                
                // CSS only supports one decoration tag so if both are specified
                // only one of the two will display
                if ((fontstyle & Font.UNDERLINE) > 0) {
                    writeCssProperty(Markup.CSS_KEY_TEXTDECORATION, Markup.CSS_VALUE_UNDERLINE);
                }
                if ((fontstyle & Font.STRIKETHRU) > 0) {
                    writeCssProperty(Markup.CSS_KEY_TEXTDECORATION, Markup.CSS_VALUE_LINETHROUGH);
                }
            }
        }
        write("\"");
    }
    
    /**
     * Writes out a CSS property.
     * @param prop a CSS property
     * @param value the value of the CSS property
     * @throws IOException
     */
    protected void writeCssProperty(String prop, String value) throws IOException {
        write(new StringBuffer(prop).append(": ").append(value).append("; ").toString());
    }
}