Review

9

/home/eko/MUBench/MUBench/mubench.pipeline/../checkouts/itext/5091/original-src/com/itextpdf/text/pdf/PdfChunk.java

truncate(float)

class PdfChunk {
    protected int getWord(String text, int start) {
        int len = text.length();
        while (start < len) {
            if (!Character.isLetter(text.charAt(start)))
                break;
            ++start;
        }
        return start;
    }

}

class PdfChunk {
    /**
     * Truncates this <CODE>PdfChunk</CODE> if it's too long for the given width.
     * <P>
     * Returns <VAR>null</VAR> if the <CODE>PdfChunk</CODE> wasn't truncated.
     *
     * @param		width		a given width
     * @return		the <CODE>PdfChunk</CODE> that doesn't fit into the width.
     */
    PdfChunk truncate(float width) {
        if (image != null) {
            if (image.getScaledWidth() > width) {
            	// Image does not fit the line, resize if requested
            	if (image.isScaleToFitLineWhenOverflow()) {
            		float scalePercent = width / image.getWidth() * 100;
            		image.scalePercent(scalePercent);
            		return null;
            	}
                PdfChunk pc = new PdfChunk("", this);
                value = "";
                attributes.remove(Chunk.IMAGE);
                image = null;
                font = PdfFont.getDefaultFont();
                return pc;
            }
            else
                return null;
        }

        int currentPosition = 0;
        float currentWidth = 0;

        // it's no use trying to split if there isn't even enough place for a space
        if (width < font.width()) {
            String returnValue = value.substring(1);
            value = value.substring(0, 1);
            PdfChunk pc = new PdfChunk(returnValue, this);
            return pc;
        }

        // loop over all the characters of a string
        // or until the totalWidth is reached
        int length = value.length();
        boolean surrogate = false;
        while (currentPosition < length) {
            // the width of every character is added to the currentWidth
            surrogate = Utilities.isSurrogatePair(value, currentPosition);
            if (surrogate)
                currentWidth += getCharWidth(Utilities.convertToUtf32(value, currentPosition));
            else
                currentWidth += getCharWidth(value.charAt(currentPosition));
            if (currentWidth > width)
                break;
            if (surrogate)
                currentPosition++;
            currentPosition++;
        }

        // if all the characters fit in the total width, null is returned (there is no overflow)
        if (currentPosition == length) {
            return null;
        }

        // otherwise, the string has to be truncated
        //currentPosition -= 2;
        // we have to chop off minimum 1 character from the chunk
        if (currentPosition == 0) {
            currentPosition = 1;
            if (surrogate)
                ++currentPosition;
        }
        String returnValue = value.substring(currentPosition);
        value = value.substring(0, currentPosition);
        PdfChunk pc = new PdfChunk(returnValue, this);
        return pc;
    }

}