org.areasy.common.doclet.document.tags.TagTD.java Source code

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Here is the source code for org.areasy.common.doclet.document.tags.TagTD.java

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package org.areasy.common.doclet.document.tags;

/*
 * Copyright (c) 2007-2016 AREasy Runtime
 *
 * This library, AREasy Runtime and API for BMC Remedy AR System, is free software ("Licensed Software");
 * you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either version 2.1 of the License,
 * or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * including but not limited to, the implied warranty of MERCHANTABILITY, NONINFRINGEMENT,
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 */

import com.lowagie.text.Element;
import com.lowagie.text.pdf.PdfPCell;
import org.areasy.common.doclet.utilities.DocletUtility;
import org.areasy.common.doclet.utilities.PDFUtility;

/**
 * TagCELL creates an iText Cell instance and returns it as the only
 * conent from getPdfObjects(), and is meant to be added to a Table
 * instance created by the TagTABLE class.
 *
 *
 */
public class TagTD extends HtmlTag {
    /**
     * Constant value for a header-cell/row indicator attribute.
     */
    public static final String HEADER_INDICATOR_ATTR = "doclet.table.header.indicator";

    /**
     * Creates a cell tag object.
     *
     * @param parent The parent tag.
     * @param type   The type of this tag.
     */
    public TagTD(HtmlTag parent, int type) {
        super(parent, type);
        if (type == TAG_TH)
            setBold(true);
    }

    private String getInheritedAttribute(String attrib, boolean includeTable) {
        String value = getAttribute(attrib);
        HtmlTag currTag = parent;

        while (value == null && currTag != null) {
            int type = currTag.getType();

            if (type == TAG_TR || type == TAG_THEAD || (includeTable && type == TAG_TABLE))
                value = currTag.getAttribute(attrib);
            if (type == TAG_TABLE)
                break;

            currTag = currTag.parent;
        }

        return value;
    }

    private int parseSpan(String intString) {
        int span = 0;

        try {
            if (intString != null)
                span = Integer.parseInt(intString);
        } catch (NumberFormatException e) {
            DocletUtility.error(e.toString());
        }

        return (span <= 0) ? 1 : span;
    }

    private PdfPCell createCell(Element[] content) {
        int defaultAlign = (getType() == TAG_TH) ? Element.ALIGN_CENTER : Element.ALIGN_LEFT;

        String align = getInheritedAttribute("align", false);
        String valign = getInheritedAttribute("valign", false);
        String bgcolor = getInheritedAttribute("bgcolor", true);
        int alignment = HtmlTagUtility.getAlignment(align, defaultAlign);

        PdfPCell cell = PDFUtility.createElementCell(2, alignment, content);

        cell.setHorizontalAlignment(HtmlTagUtility.getAlignment(align, defaultAlign));
        cell.setVerticalAlignment(HtmlTagUtility.getVerticalAlignment(valign, Element.ALIGN_MIDDLE));
        cell.setBackgroundColor(HtmlTagUtility.getColor(bgcolor));
        cell.setColspan(parseSpan(getAttribute("colspan")));

        cell.setUseAscender(true); // needs newer iText
        cell.setUseDescender(true); // needs newer iText
        cell.setUseBorderPadding(true); // needs newer iText

        if (getAttribute("nowrap") != null)
            cell.setNoWrap(true);
        if (getType() == TAG_TH)
            cell.setMarkupAttribute(HEADER_INDICATOR_ATTR, "true");

        return cell;
    }

    public Element[] toPdfObjects() {
        Element[] content = super.toPdfObjects();
        PdfPCell cell = createCell(content);

        return new Element[] { cell };
    }

}