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Parses XML to PDF, with CSS support, using iText
/*
* $Id: 132c69202e7ee479de00d875a0a5ad1a486cca44 $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2015 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: [email protected]
*/
package com.itextpdf.tool.xml.css.apply;
import java.io.IOException;
import java.util.Map;
import com.itextpdf.text.Font;
import com.itextpdf.text.Image;
import com.itextpdf.text.html.HtmlUtilities;
import com.itextpdf.text.log.Level;
import com.itextpdf.text.log.Logger;
import com.itextpdf.text.log.LoggerFactory;
import com.itextpdf.text.pdf.PdfDiv;
import com.itextpdf.tool.xml.Tag;
import com.itextpdf.tool.xml.css.*;
import com.itextpdf.tool.xml.exceptions.LocaleMessages;
import com.itextpdf.tool.xml.html.HTML;
import com.itextpdf.tool.xml.net.ImageRetrieve;
import com.itextpdf.tool.xml.net.exc.NoImageException;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipelineContext;
public class DivCssApplier {
private final CssUtils utils = CssUtils.getInstance();
private static final Logger LOG = LoggerFactory.getLogger(ListStyleTypeCssApplier.class);
public PdfDiv apply(final PdfDiv div, final Tag t, final MarginMemory memory, final PageSizeContainable psc, HtmlPipelineContext context) {
Map css = t.getCSS();
float fontSize = FontSizeTranslator.getInstance().translateFontSize(t);
if (fontSize == Font.UNDEFINED) {
fontSize = FontSizeTranslator.DEFAULT_FONT_SIZE;
}
String align = null;
if (t.getAttributes().containsKey(HTML.Attribute.ALIGN)) {
align = t.getAttributes().get(HTML.Attribute.ALIGN);
} else if (css.containsKey(CSS.Property.TEXT_ALIGN)) {
align = css.get(CSS.Property.TEXT_ALIGN);
}
if (align != null) {
div.setTextAlignment(CSS.getElementAlignment(align));
}
String widthValue = css.get(HTML.Attribute.WIDTH);
if (widthValue == null) {
widthValue = t.getAttributes().get(HTML.Attribute.WIDTH);
}
if (widthValue != null) {
float pageWidth = psc.getPageSize().getWidth();
if (utils.isNumericValue(widthValue) || utils.isMetricValue(widthValue)) {
div.setWidth(Math.min(pageWidth, utils.parsePxInCmMmPcToPt(widthValue)));
} else if (utils.isRelativeValue(widthValue)) {
if (widthValue.contains(CSS.Value.PERCENTAGE)) {
div.setPercentageWidth(utils.parseRelativeValue(widthValue, 1f));
} else {
div.setWidth(Math.min(pageWidth, utils.parseRelativeValue(widthValue, fontSize)));
}
}
}
String heightValue = css.get(HTML.Attribute.HEIGHT);
if (heightValue == null) {
heightValue = t.getAttributes().get(HTML.Attribute.HEIGHT);
}
if (heightValue != null) {
if (utils.isNumericValue(heightValue) || utils.isMetricValue(heightValue)) {
div.setHeight(utils.parsePxInCmMmPcToPt(heightValue));
} else if (utils.isRelativeValue(heightValue)) {
if (heightValue.contains(CSS.Value.PERCENTAGE)) {
div.setPercentageHeight(utils.parseRelativeValue(heightValue, 1f));
} else {
div.setHeight(utils.parseRelativeValue(heightValue, fontSize));
}
}
}
Float marginTop = null;
Float marginBottom = null;
for (Map.Entry entry : css.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
if (key.equalsIgnoreCase(CSS.Property.LEFT)) {
div.setLeft(utils.parseValueToPt(value, fontSize));
} else if (key.equalsIgnoreCase(CSS.Property.RIGHT)) {
if (div.getWidth() == null || div.getLeft() == null) {
div.setRight(utils.parseValueToPt(value, fontSize));
}
} else if (key.equalsIgnoreCase(CSS.Property.TOP)) {
div.setTop(utils.parseValueToPt(value, fontSize));
} else if (key.equalsIgnoreCase(CSS.Property.BOTTOM)) {
if (div.getHeight() == null || div.getTop() == null) {
div.setBottom(utils.parseValueToPt(value, fontSize));
}
} else if (key.equalsIgnoreCase(CSS.Property.BACKGROUND_COLOR)) {
div.setBackgroundColor(HtmlUtilities.decodeColor(value));
} else if (key.equalsIgnoreCase(CSS.Property.BACKGROUND_IMAGE)) {
String url = utils.extractUrl(value);
try {
Image img = new ImageRetrieve(context.getResourcesRootPath(), context.getImageProvider()).retrieveImage(url);
div.setBackgroundImage(img);
} catch (NoImageException e) {
if (LOG.isLogging(Level.ERROR)) {
LOG.error(String.format(LocaleMessages.getInstance().getMessage("html.tag.img.failed"), url), e);
}
}
} else if (key.equalsIgnoreCase(CSS.Property.PADDING_LEFT)) {
div.setPaddingLeft(utils.parseValueToPt(value, fontSize));
} else if (key.equalsIgnoreCase(CSS.Property.PADDING_RIGHT)) {
div.setPaddingRight(utils.parseValueToPt(value, fontSize));
} else if (key.equalsIgnoreCase(CSS.Property.PADDING_TOP)) {
div.setPaddingTop(utils.parseValueToPt(value, fontSize));
} else if (key.equalsIgnoreCase(CSS.Property.PADDING_BOTTOM)) {
div.setPaddingBottom(utils.parseValueToPt(value, fontSize));
} else if (key.equalsIgnoreCase(CSS.Property.MARGIN_TOP)) {
marginTop = utils.calculateMarginTop(value, fontSize, memory);
} else if (key.equalsIgnoreCase(CSS.Property.MARGIN_BOTTOM)) {
marginBottom = utils.parseValueToPt(value, fontSize);
} else if (key.equalsIgnoreCase(CSS.Property.FLOAT)) {
if (value.equalsIgnoreCase(CSS.Value.LEFT)) {
div.setFloatType(PdfDiv.FloatType.LEFT);
} else if (value.equalsIgnoreCase(CSS.Value.RIGHT)) {
div.setFloatType(PdfDiv.FloatType.RIGHT);
}
} else if (key.equalsIgnoreCase(CSS.Property.POSITION)) {
if (value.equalsIgnoreCase(CSS.Value.ABSOLUTE)) {
div.setPosition(PdfDiv.PositionType.ABSOLUTE);
} else if (value.equalsIgnoreCase(CSS.Value.FIXED)) {
div.setPosition(PdfDiv.PositionType.FIXED);
} else if (value.equalsIgnoreCase(CSS.Value.RELATIVE)) {
div.setPosition(PdfDiv.PositionType.RELATIVE);
}
} else if (key.equalsIgnoreCase(CSS.Property.DISPLAY)) {
if (value.equalsIgnoreCase(CSS.Value.BLOCK)){
div.setDisplay(PdfDiv.DisplayType.BLOCK);
} else if (value.equalsIgnoreCase(CSS.Value.INLINE)){
div.setDisplay(PdfDiv.DisplayType.INLINE);
} else if (value.equalsIgnoreCase(CSS.Value.INLINE_BLOCK)){
div.setDisplay(PdfDiv.DisplayType.INLINE_BLOCK);
}else if (value.equalsIgnoreCase(CSS.Value.INLINE_TABLE)){
div.setDisplay(PdfDiv.DisplayType.INLINE_TABLE);
}else if (value.equalsIgnoreCase(CSS.Value.LIST_ITEM)){
div.setDisplay(PdfDiv.DisplayType.LIST_ITEM);
} else if (value.equalsIgnoreCase(CSS.Value.NONE)){
div.setDisplay(PdfDiv.DisplayType.NONE);
} else if (value.equalsIgnoreCase(CSS.Value.RUN_IN)){
div.setDisplay(PdfDiv.DisplayType.RUN_IN);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE)) {
div.setDisplay(PdfDiv.DisplayType.TABLE);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_CAPTION)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_CAPTION);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_CELL)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_CELL);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_COLUMN_GROUP)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_COLUMN_GROUP);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_COLUMN)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_COLUMN);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_FOOTER_GROUP)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_FOOTER_GROUP);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_HEADER_GROUP)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_HEADER_GROUP);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_ROW)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_ROW);
} else if (value.equalsIgnoreCase(CSS.Value.TABLE_ROW_GROUP)) {
div.setDisplay(PdfDiv.DisplayType.TABLE_ROW_GROUP);
}
} else if (key.equalsIgnoreCase(CSS.Property.BORDER_TOP_STYLE)) {
if (value.equalsIgnoreCase(CSS.Value.DOTTED)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.DOTTED);
} else if (value.equalsIgnoreCase(CSS.Value.DASHED)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.DASHED);
} else if (value.equalsIgnoreCase(CSS.Value.SOLID)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.SOLID);
} else if (value.equalsIgnoreCase(CSS.Value.DOUBLE)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.DOUBLE);
} else if (value.equalsIgnoreCase(CSS.Value.GROOVE)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.GROOVE);
} else if (value.equalsIgnoreCase(CSS.Value.RIDGE)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.RIDGE);
} else if (value.equalsIgnoreCase(CSS.Value.INSET)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.INSET);
} else if (value.equalsIgnoreCase(CSS.Value.OUTSET)) {
div.setBorderTopStyle(PdfDiv.BorderTopStyle.OUTSET);
}
} else if (key.equalsIgnoreCase(CSS.Property.PAGE_BREAK_INSIDE)) {
if (value.equalsIgnoreCase(CSS.Value.AVOID)) {
div.setKeepTogether(true);
}
}
//TODO: border, background properties.
}
/*for (Map.Entry entry : css.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
cell.setUseBorderPadding(true);
if(key.equalsIgnoreCase(CSS.Property.BACKGROUND_COLOR)) {
values.setBackground(HtmlUtilities.decodeColor(value));
} else if(key.equalsIgnoreCase(CSS.Property.VERTICAL_ALIGN)) {
if(value.equalsIgnoreCase(CSS.Value.TOP)) {
cell.setVerticalAlignment(Element.ALIGN_TOP);
cell.setPaddingTop(cell.getPaddingTop()+6);
} else if(value.equalsIgnoreCase(CSS.Value.BOTTOM)) {
cell.setVerticalAlignment(Element.ALIGN_BOTTOM);
cell.setPaddingBottom(cell.getPaddingBottom()+6);
}
} else if(key.contains(CSS.Property.BORDER)) {
if(key.contains(CSS.Value.TOP)) {
setTopOfBorder(cell, key, value, values);
} else if(key.contains(CSS.Value.BOTTOM)) {
setBottomOfBorder(cell, key, value, values);
} else if(key.contains(CSS.Value.LEFT)) {
setLeftOfBorder(cell, key, value, values);
} else if(key.contains(CSS.Value.RIGHT)) {
setRightOfBorder(cell, key, value, values);
}
}
}*/
return div;
}
}