Example usage for org.apache.pdfbox.pdmodel.font PDFontDescriptor getDescent

Introduction

In this page you can find the example usage for org.apache.pdfbox.pdmodel.font PDFontDescriptor getDescent.

Prototype

public float getDescent() 

Source Link

Document

This will get the descent for the font.

Usage

From source file:com.planbase.pdf.layoutmanager.TextStyle.java

License:Apache License

private TextStyle(PDFont f, float sz, Color tc) {
    if (f == null) {
        throw new IllegalArgumentException("Font must not be null");
    }/*  www .  j a va 2s  . co m*/
    if (tc == null) {
        tc = Color.BLACK;
    }

    font = f;
    textColor = tc;
    fontSize = sz;
    // Somewhere it says that font units are 1000 times page units, but my tests with
    // PDType1Font.HELVETICA and PDType1Font.HELVETICA_BOLD from size 5-200 show that 960x is
    // pretty darn good.
    // TODO: Fix font-size for other fonts.
    factor = fontSize / 960f;
    PDFontDescriptor fontDescriptor = font.getFontDescriptor();
    float rawAscent = fontDescriptor.getAscent();
    float rawDescent = fontDescriptor.getDescent();
    // Characters look best with the descent size both above and below.  Also acts as a good
    // default leading.
    ascent = rawAscent * factor;
    descent = rawDescent * -factor;
    leading = descent / 2;
    // height = ascent + descent + leading;

    float avgFontWidth = 500;
    try {
        avgFontWidth = font.getAverageFontWidth();
    } catch (IOException ioe) {
        //throw new IllegalStateException("IOException probably means an issue reading font metrics from the underlying font file used in this PDF", ioe);
        ; // just use default if there's an exception.
    }
    avgCharWidth = avgFontWidth * fontSize;
}

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From source file:de.hrogge.CompactPDFExport.PDFSeite.java

License:Apache License

public void drawText(PDFont font, int x1, int x2, int y1, int y2, String text, boolean center)
        throws IOException {
    PDFontDescriptor descr = font.getFontDescriptor();
    float boxProp, textProp;
    float boxWidth, boxHeight;
    float textWidth, textHeight;
    float shiftX, shiftY;

    boxHeight = (getY(y1) - getY(y2)) - 2 * randText;
    boxWidth = (getX(x2) - getX(x1)) - 2 * randText;
    boxProp = boxWidth / boxHeight;/*from   w  ww . j  a  va 2 s.c o  m*/

    textHeight = (descr.getFontBoundingBox().getHeight()) / 1000f;
    textWidth = font.getStringWidth(text) / 1000f;
    textProp = textWidth / textHeight;

    /* begrenze vertikale Skalierung */
    while (textProp / boxProp > 1.75 && text.contains(" ")) {
        text = text.substring(0, text.lastIndexOf(' ')) + "...";
        textWidth = font.getStringWidth(text) / 1000f;
        textProp = textWidth / textHeight;
    }

    stream.beginText();

    if (textProp > boxProp) {
        /* scale over width */
        stream.setFont(font, boxWidth / textWidth);

        shiftX = 0f;
        shiftY = boxHeight / 2 - (textHeight * boxWidth / textWidth) / 2;
        shiftY += -descr.getDescent() / 1000 * (boxWidth / textWidth);
    } else {
        /* scale over height */
        stream.setFont(font, boxHeight / textHeight);

        if (center) {
            shiftX = boxWidth / 2 - textWidth * (boxHeight / textHeight) / 2;
        } else {
            shiftX = 0f;
        }
        shiftY = -descr.getDescent() / 1000 * (boxHeight / textHeight);
    }

    stream.moveTextPositionByAmount(getX(x1) + randText + shiftX, getY(y2) + randText + shiftY);
    stream.drawString(text);
    stream.endText();
}

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