org.apache.poi.xwpf.converter.internal.itext.XWPFParagraphUtils.java Source code

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/**
 * Copyright (C) 2011 Angelo Zerr <angelo.zerr@gmail.com> and Pascal Leclercq <pascal.leclercq@gmail.com>
 *
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.apache.poi.xwpf.converter.internal.itext;

import static org.apache.poi.xwpf.converter.internal.DxaUtil.dxa2points;

import java.math.BigInteger;
import java.util.List;

import org.apache.poi.xwpf.usermodel.ParagraphAlignment;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.poi.xwpf.usermodel.XWPFStyle;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTDocDefaults;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTInd;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTR;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTRPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTShd;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTSpacing;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTStyle;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTTextAlignment;
import org.w3c.dom.Attr;

import com.lowagie.text.Paragraph;

public class XWPFParagraphUtils {

    public static void processLayout(XWPFParagraph paragraph, Paragraph pdfParagraph, XWPFStyle style,
            CTDocDefaults defaults) {

        float indentationLeft = -1;
        float indentationRight = -1;
        float firstLineIndent = -1;
        float spacingBefore = -1;
        float spacingAfter = -1;

        // 1) From style
        CTPPr ppr = getPPr(style);
        if (ppr != null) {

            // Indentation
            CTInd ind = ppr.getInd();
            if (ind != null) {

                // Left Indentation
                BigInteger left = ind.getLeft();
                if (left != null) {
                    indentationLeft = dxa2points(left);
                }

                // Right Indentation
                BigInteger right = ind.getRight();
                if (right != null) {
                    indentationRight = dxa2points(right);
                }

                // First line Indentation
                BigInteger firstLine = ind.getFirstLine();
                if (firstLine != null) {
                    firstLineIndent = dxa2points(firstLine);
                }
            }

            // Spacing
            CTSpacing spacing = ppr.getSpacing();
            if (spacing != null) {

                // Spacing before
                BigInteger before = spacing.getBefore();
                if (before != null) {
                    spacingBefore = dxa2points(before);
                }

                // Spacing after
                BigInteger after = spacing.getAfter();
                if (after != null) {
                    spacingAfter = dxa2points(after);
                }
            }

            // Text aligment
            CTTextAlignment textAligment = ppr.getTextAlignment();
            if (textAligment != null) {
                // TODO
            }

        }

        // 2) From paragraph
        if (indentationLeft == -1 && paragraph.getIndentationLeft() != -1) {
            indentationLeft = dxa2points(paragraph.getIndentationLeft());

        }
        if (indentationRight == -1 && paragraph.getIndentationRight() != -1) {
            indentationRight = dxa2points(paragraph.getIndentationRight());
        }
        if (firstLineIndent == -1 && paragraph.getIndentationFirstLine() != -1) {
            firstLineIndent = dxa2points(paragraph.getIndentationFirstLine());
        }
        if (spacingBefore == -1 && paragraph.getSpacingBefore() != -1) {
            spacingBefore = dxa2points(paragraph.getSpacingBefore());
        }
        if (spacingAfter == -1 && paragraph.getSpacingAfter() != -1) {
            spacingAfter = dxa2points(paragraph.getSpacingAfter());
        }

        // 3) From default
        // TODO

        // Apply
        if (indentationLeft != -1) {
            pdfParagraph.setIndentationLeft(indentationLeft);
        }
        if (indentationRight != -1) {
            pdfParagraph.setIndentationRight(indentationRight);
        }
        if (firstLineIndent != -1) {
            pdfParagraph.setFirstLineIndent(firstLineIndent);
        }
        if (spacingBefore != -1) {
            pdfParagraph.setSpacingBefore(spacingBefore);
        }
        if (spacingAfter != -1) {
            pdfParagraph.setSpacingAfter(spacingAfter);
        }

        // Aligment
        ParagraphAlignment alignment = paragraph.getAlignment();
        switch (alignment) {
        case LEFT:
            pdfParagraph.setAlignment(Paragraph.ALIGN_LEFT);
            break;
        case RIGHT:
            pdfParagraph.setAlignment(Paragraph.ALIGN_RIGHT);
            break;

        case CENTER:
            pdfParagraph.setAlignment(Paragraph.ALIGN_CENTER);
            break;

        case BOTH:
            pdfParagraph.setAlignment(Paragraph.ALIGN_JUSTIFIED);
            break;
        }
    }

    public static CTPPr getPPr(XWPFStyle style) {
        if (style == null) {
            return null;
        }

        CTStyle ctStyle = style.getCTStyle();
        if (ctStyle == null) {
            return null;
        }
        return ctStyle.getPPr();
    }

    public static String getBackgroundColor(XWPFParagraph paragraph) {
        List<XWPFRun> runs = paragraph.getRuns();
        if (runs.isEmpty()) {
            return null;
        }
        return getBackgroundColor(runs.get(0));
    }

    public static String getBackgroundColor(XWPFRun run) {
        CTR ctr = run.getCTR();
        if (ctr == null) {
            return null;
        }
        CTRPr ctrPr = ctr.getRPr();
        if (ctrPr == null) {
            return null;
        }
        CTShd ctShd = ctrPr.getShd();
        if (ctShd == null) {
            return null;
        }

        Attr attr = (Attr) ctShd.getDomNode().getAttributes()
                .getNamedItemNS("http://schemas.openxmlformats.org/wordprocessingml/2006/main", "fill");
        if (attr != null) {
            return attr.getValue();
        }
        return null;
    }

}