fr.opensagres.poi.xwpf.converter.pdf.internal.elements.StylableParagraph.java Source code

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/**
 * Copyright (C) 2011-2015 The XDocReport Team <xdocreport@googlegroups.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 fr.opensagres.poi.xwpf.converter.pdf.internal.elements;

import java.awt.Color;
import java.math.BigInteger;

import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBorder;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STBorder;

import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.BaseFont;

import fr.opensagres.poi.xwpf.converter.core.utils.ColorHelper;
import fr.opensagres.poi.xwpf.converter.pdf.internal.Converter;
import fr.opensagres.xdocreport.itext.extension.ExtendedParagraph;
import fr.opensagres.xdocreport.itext.extension.IITextContainer;

public class StylableParagraph extends ExtendedParagraph implements IITextContainer {

    private static final long serialVersionUID = 664309269352903329L;

    private final StylableDocument ownerDocument;

    private IITextContainer parent;

    private String listItemText;

    private Float originMultipliedLeading;

    private String listItemFontFamily;

    private Float listItemFontSize;

    private int listItemFontStyle = -1;

    private Color listItemFontColor;

    public StylableParagraph(StylableDocument ownerDocument, IITextContainer parent) {
        super();
        this.ownerDocument = ownerDocument;
        this.parent = parent;
        this.originMultipliedLeading = null;
    }

    public StylableParagraph(StylableDocument ownerDocument, Paragraph title, IITextContainer parent) {
        super(title);
        this.ownerDocument = ownerDocument;
        this.parent = parent;
    }

    // FIXME check with Angelo the purpose of this method....
    public IITextContainer getParent() {
        return parent;
    }

    public StylableDocument getOwnerDocument() {
        return ownerDocument;
    }

    public void setBorder(CTBorder border, int borderSide) {
        if (border == null) {
            return;
        }
        boolean noBorder = (STBorder.NONE == border.getVal() || STBorder.NIL == border.getVal());

        // No border
        if (noBorder) {
            return;
        } else {
            // border size
            float size = -1;
            BigInteger borderSize = border.getSz();
            if (borderSize != null) {
                // http://officeopenxml.com/WPtableBorders.php
                // if w:sz="4" => 1/4 points
                size = borderSize.floatValue() / 8f;
            }
            // border color
            fr.opensagres.poi.xwpf.converter.core.Color bdColor = ColorHelper.getBorderColor(border);

            Color borderColor = Converter.toAwtColor(bdColor);
            // border padding
            Float space = null;
            BigInteger borderSpace = border.getSpace();
            if (borderSpace != null) {
                // Specifies the spacing offset. Values are specified in points (1/72nd of an inch).
                space = borderSpace.floatValue();
            }

            switch (borderSide) {
            case Rectangle.TOP:
                if (size != -1) {
                    this.setBorderWidthTop(size);
                }
                if (borderColor != null) {

                    super.setBorderColorTop(borderColor);
                }
                if (space != null) {
                    super.setBorderPaddingTop(space);
                }
                break;
            case Rectangle.BOTTOM:
                if (size != -1) {
                    this.setBorderWidthBottom(size);
                }
                if (borderColor != null) {
                    super.setBorderColorBottom(borderColor);
                }
                if (space != null) {
                    super.setBorderPaddingBottom(space);
                }
                break;
            case Rectangle.LEFT:
                if (size != -1) {
                    this.setBorderWidthLeft(size);
                }
                if (borderColor != null) {
                    super.setBorderColorLeft(borderColor);
                }
                if (space != null) {
                    super.setBorderPaddingLeft(space);
                }
                break;
            case Rectangle.RIGHT:
                if (size != -1) {
                    this.setBorderWidthRight(size);
                }
                if (borderColor != null) {
                    super.setBorderColorRight(borderColor);
                }
                if (space != null) {
                    super.setBorderPaddingRight(space);
                }
                break;
            }
        }
    }

    public String getListItemText() {
        return listItemText;
    }

    public void setListItemText(String listItemText) {
        this.listItemText = listItemText;
    }

    public String getListItemFontFamily() {
        return listItemFontFamily;
    }

    public void setListItemFontFamily(String listItemFontFamily) {
        this.listItemFontFamily = listItemFontFamily;
    }

    public Float getListItemFontSize() {
        return listItemFontSize;
    }

    public void setListItemFontSize(Float listItemFontSize) {
        this.listItemFontSize = listItemFontSize;
    }

    public int getListItemFontStyle() {
        return listItemFontStyle;
    }

    public void setListItemFontStyle(int listItemFontStyle) {
        this.listItemFontStyle = listItemFontStyle;
    }

    public Color getListItemFontColor() {
        return listItemFontColor;
    }

    public void setListItemFontColor(Color listItemFontColor) {
        this.listItemFontColor = listItemFontColor;
    }

    @Override
    public void setLeading(float fixedLeading, float multipliedLeading) {
        super.setLeading(fixedLeading, multipliedLeading);
        this.originMultipliedLeading = multipliedLeading;
    }

    @Override
    public void setMultipliedLeading(float multipliedLeading) {
        super.setMultipliedLeading(multipliedLeading);
        this.originMultipliedLeading = multipliedLeading;
    }

    /**
     * Adjust iText multiplied leading according the given font.
     * 
     * @param font
     */
    public void adjustMultipliedLeading(Font font) {
        if (originMultipliedLeading != null && font != null && font.getBaseFont() != null) {
            // iText and open office computes proportional line height differently
            // [iText] line height = coefficient * font size
            // [MS Word] line height = coefficient * (font ascender + font descender + font extra margin)
            // we have to increase paragraph line height to generate pdf similar to OOXML docx document
            // this algorithm may be inaccurate if fonts with different multipliers are used in this paragraph
            float size = font.getSize();
            float ascender = font.getBaseFont().getFontDescriptor(BaseFont.AWT_ASCENT, size);
            float descender = -font.getBaseFont().getFontDescriptor(BaseFont.AWT_DESCENT, size); // negative value
            float margin = font.getBaseFont().getFontDescriptor(BaseFont.AWT_LEADING, size);
            float multiplier = (ascender + descender + margin) / size;
            super.setMultipliedLeading(originMultipliedLeading * multiplier);
        }
    }

}