com.lowagie.text.pdf.PdfNumber Java Examples

/**
 * Reuses an existing image.
 * 
 * @param ref the reference to the image dictionary
 * @throws BadElementException on error
 * @return the image
 */
public static Image getInstance(PRIndirectReference ref) throws BadElementException {
	PdfDictionary dic = (PdfDictionary) PdfReader.getPdfObjectRelease(ref);
	int width = ((PdfNumber) PdfReader.getPdfObjectRelease(dic.get(PdfName.WIDTH))).intValue();
	int height = ((PdfNumber) PdfReader.getPdfObjectRelease(dic.get(PdfName.HEIGHT))).intValue();
	Image imask = null;
	PdfObject obj = dic.get(PdfName.SMASK);
	if (obj != null && obj.isIndirect()) {
		imask = getInstance((PRIndirectReference) obj);
	} else {
		obj = dic.get(PdfName.MASK);
		if (obj != null && obj.isIndirect()) {
			PdfObject obj2 = PdfReader.getPdfObjectRelease(obj);
			if (obj2 instanceof PdfDictionary) {
				imask = getInstance((PRIndirectReference) obj);
			}
		}
	}
	Image img = new ImgRaw(width, height, 1, 1, null);
	img.imageMask = imask;
	img.directReference = ref;
	return img;
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfNumber aw = (PdfNumber) operands.get(0);
	PdfNumber ac = (PdfNumber) operands.get(1);
	PdfString string = (PdfString) operands.get(2);

	ArrayList twOperands = new ArrayList(1);
	twOperands.add(0, aw);
	processor.invokeOperator(new PdfLiteral("Tw"), twOperands);

	ArrayList tcOperands = new ArrayList(1);
	tcOperands.add(0, ac);
	processor.invokeOperator(new PdfLiteral("Tc"), tcOperands);

	ArrayList tickOperands = new ArrayList(1);
	tickOperands.add(0, string);
	processor.invokeOperator(new PdfLiteral("'"), tickOperands);
}
 

/**
 * Reuses an existing image.
 * @param ref the reference to the image dictionary
 * @throws BadElementException on error
 * @return the image
 */    
public static Image getInstance(PRIndirectReference ref) throws BadElementException {
    PdfDictionary dic = (PdfDictionary)PdfReader.getPdfObjectRelease(ref);
    int width = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.WIDTH))).intValue();
    int height = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.HEIGHT))).intValue();
    Image imask = null;
    PdfObject obj = dic.get(PdfName.SMASK);
    if (obj != null && obj.isIndirect()) {
        imask = getInstance((PRIndirectReference)obj);
    }
    else {
        obj = dic.get(PdfName.MASK);
        if (obj != null && obj.isIndirect()) {
            PdfObject obj2 = PdfReader.getPdfObjectRelease(obj);
            if (obj2 instanceof PdfDictionary)
                imask = getInstance((PRIndirectReference)obj);
        }
    }
    Image img = new ImgRaw(width, height, 1, 1, null);
    img.imageMask = imask;
    img.directReference = ref;
    return img;
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfNumber aw = (PdfNumber) operands.get(0);
	PdfNumber ac = (PdfNumber) operands.get(1);
	PdfString string = (PdfString) operands.get(2);

	ArrayList twOperands = new ArrayList(1);
	twOperands.add(0, aw);
	processor.invokeOperator(new PdfLiteral("Tw"), twOperands);

	ArrayList tcOperands = new ArrayList(1);
	tcOperands.add(0, ac);
	processor.invokeOperator(new PdfLiteral("Tc"), tcOperands);

	ArrayList tickOperands = new ArrayList(1);
	tickOperands.add(0, string);
	processor.invokeOperator(new PdfLiteral("'"), tickOperands);
}
 

/**
 * Returns a PdfObject that can be used as the value of a Collection Item.
 * @param v	value	the value that has to be changed into a PdfObject (PdfString, PdfDate or PdfNumber)	
 */
public PdfObject getValue(String v) {
	switch(fieldType) {
	case TEXT:
		return new PdfString(v, PdfObject.TEXT_UNICODE);
	case DATE:
		return new PdfDate(PdfDate.decode(v));
	case NUMBER:
		return new PdfNumber(v);
	}
	throw new IllegalArgumentException(v + " is not an acceptable value for the field " + get(PdfName.N).toString());
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfArray array = (PdfArray) operands.get(0);
	float tj = 0;
	for (Iterator i = array.listIterator(); i.hasNext();) {
		Object entryObj = i.next();
		if (entryObj instanceof PdfString) {
			processor.displayPdfString((PdfString) entryObj, tj);
			tj = 0;
		} else {
			tj = ((PdfNumber) entryObj).floatValue();
		}
	}

}
 

/**
 * Sets the value of the collection item.
 * @param n
 */
public void addItem(String key, PdfNumber n) {
	PdfName fieldname = new PdfName(key);
	PdfCollectionField field = (PdfCollectionField)schema.get(fieldname);
	if (field.fieldType == PdfCollectionField.NUMBER) {
		put(fieldname, n);
	}
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfArray array = (PdfArray) operands.get(0);
	float tj = 0;
	for (Iterator i = array.listIterator(); i.hasNext();) {
		Object entryObj = i.next();
		if (entryObj instanceof PdfString) {
			processor.displayPdfString((PdfString) entryObj, tj);
			tj = 0;
		} else {
			tj = ((PdfNumber) entryObj).floatValue();
		}
	}

}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float a = ((PdfNumber) operands.get(0)).floatValue();
	float b = ((PdfNumber) operands.get(1)).floatValue();
	float c = ((PdfNumber) operands.get(2)).floatValue();
	float d = ((PdfNumber) operands.get(3)).floatValue();
	float e = ((PdfNumber) operands.get(4)).floatValue();
	float f = ((PdfNumber) operands.get(5)).floatValue();

	processor.textLineMatrix = new Matrix(a, b, c, d, e, f);
	processor.textMatrix = processor.textLineMatrix;
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float ty = ((PdfNumber) operands.get(1)).floatValue();

	ArrayList tlOperands = new ArrayList(1);
	tlOperands.add(0, new PdfNumber(-ty));
	processor.invokeOperator(new PdfLiteral("TL"), tlOperands);
	processor.invokeOperator(new PdfLiteral("Td"), operands);
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float tx = ((PdfNumber) operands.get(0)).floatValue();
	float ty = ((PdfNumber) operands.get(1)).floatValue();

	Matrix translationMatrix = new Matrix(tx, ty);
	processor.textMatrix = translationMatrix.multiply(processor.textLineMatrix);
	processor.textLineMatrix = processor.textMatrix;
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfName fontResourceName = (PdfName) operands.get(0);
	float size = ((PdfNumber) operands.get(1)).floatValue();

	PdfDictionary fontsDictionary = processor.resources.getAsDict(PdfName.FONT);
	CMapAwareDocumentFont font = new CMapAwareDocumentFont(
			(PRIndirectReference) fontsDictionary.get(fontResourceName));

	processor.gs().font = font;
	processor.gs().fontSize = size;

}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float a = ((PdfNumber) operands.get(0)).floatValue();
	float b = ((PdfNumber) operands.get(1)).floatValue();
	float c = ((PdfNumber) operands.get(2)).floatValue();
	float d = ((PdfNumber) operands.get(3)).floatValue();
	float e = ((PdfNumber) operands.get(4)).floatValue();
	float f = ((PdfNumber) operands.get(5)).floatValue();
	Matrix matrix = new Matrix(a, b, c, d, e, f);
	GraphicsState gs = (GraphicsState) processor.gsStack.peek();
	gs.ctm = gs.ctm.multiply(matrix);
}
 

private Image indexedModel(byte bdata[], int bpc, int paletteEntries) throws BadElementException {
    Image img = new ImgRaw(width, height, 1, bpc, bdata);
    PdfArray colorspace = new PdfArray();
    colorspace.add(PdfName.INDEXED);
    colorspace.add(PdfName.DEVICERGB);
    byte np[] = getPalette(paletteEntries);
    int len = np.length;
    colorspace.add(new PdfNumber(len / 3 - 1));
    colorspace.add(new PdfString(np));
    PdfDictionary ad = new PdfDictionary();
    ad.put(PdfName.COLORSPACE, colorspace);
    img.setAdditional(ad);
    return img;
}
 

/**
 * Returns a PdfObject that can be used as the value of a Collection Item.
 * @param v	value	the value that has to be changed into a PdfObject (PdfString, PdfDate or PdfNumber)	
 */
public PdfObject getValue(String v) {
	switch(fieldType) {
	case TEXT:
		return new PdfString(v, PdfObject.TEXT_UNICODE);
	case DATE:
		return new PdfDate(PdfDate.decode(v));
	case NUMBER:
		return new PdfNumber(v);
	}
	throw new IllegalArgumentException(v + " is not an acceptable value for the field " + get(PdfName.N).toString());
}
 

/**
 * Sets the value of the collection item.
 * @param n
 */
public void addItem(String key, PdfNumber n) {
	PdfName fieldname = new PdfName(key);
	PdfCollectionField field = (PdfCollectionField)schema.get(fieldname);
	if (field.fieldType == PdfCollectionField.NUMBER) {
		put(fieldname, n);
	}
}
 

@Override
public int getInt(int i) throws IOException {
	PdfNumber number = wrapped.getAsNumber(i);
	if (number != null) {
		return number.intValue();
	}
	return 0;
}
 

public String cropPdf(String pdfFilePath) throws DocumentException, IOException, Exception {
	String filename = FilenameUtils.getBaseName(pdfFilePath) + "_cropped." + FilenameUtils.getExtension(pdfFilePath);
	filename = FilenameUtils.concat(System.getProperty("java.io.tmpdir"), filename);
	PdfReader reader = new PdfReader(pdfFilePath);
	try {
		PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(filename));
		try {
			for (int i = 1; i <= reader.getNumberOfPages(); i++) {
				PdfDictionary pdfDictionary = reader.getPageN(i);
				PdfArray cropArray = new PdfArray();
				Rectangle box = getSmallestBox(reader, i);
				//Rectangle cropbox = reader.getCropBox(i);
				if (box != null) {
					cropArray.add(new PdfNumber(box.getLeft()));
					cropArray.add(new PdfNumber(box.getBottom()));
					cropArray.add(new PdfNumber(box.getLeft() + box.getWidth()));
					cropArray.add(new PdfNumber(box.getBottom() + box.getHeight()));
					pdfDictionary.put(PdfName.CROPBOX, cropArray);
					pdfDictionary.put(PdfName.MEDIABOX, cropArray);
					pdfDictionary.put(PdfName.TRIMBOX, cropArray);
					pdfDictionary.put(PdfName.BLEEDBOX, cropArray);
				}
			}
			return filename;
		} finally {
			stamper.close();
		}
	} catch (Exception e) {
		logger.error(e.getMessage(), e);
		throw e;
	} finally {
		reader.close();
	}
}
 

private Image indexedModel(byte bdata[], int bpc, int paletteEntries) throws BadElementException {
	Image img = new ImgRaw(width, height, 1, bpc, bdata);
	PdfArray colorspace = new PdfArray();
	colorspace.add(PdfName.INDEXED);
	colorspace.add(PdfName.DEVICERGB);
	byte np[] = getPalette(paletteEntries);
	int len = np.length;
	colorspace.add(new PdfNumber(len / 3 - 1));
	colorspace.add(new PdfString(np));
	PdfDictionary ad = new PdfDictionary();
	ad.put(PdfName.COLORSPACE, colorspace);
	img.setAdditional(ad);
	return img;
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	ArrayList tdoperands = new ArrayList(2);
	tdoperands.add(0, new PdfNumber(0));
	tdoperands.add(1, new PdfNumber(processor.gs().leading));
	processor.invokeOperator(new PdfLiteral("Td"), tdoperands);
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float a = ((PdfNumber) operands.get(0)).floatValue();
	float b = ((PdfNumber) operands.get(1)).floatValue();
	float c = ((PdfNumber) operands.get(2)).floatValue();
	float d = ((PdfNumber) operands.get(3)).floatValue();
	float e = ((PdfNumber) operands.get(4)).floatValue();
	float f = ((PdfNumber) operands.get(5)).floatValue();

	processor.textLineMatrix = new Matrix(a, b, c, d, e, f);
	processor.textMatrix = processor.textLineMatrix;
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float ty = ((PdfNumber) operands.get(1)).floatValue();

	ArrayList tlOperands = new ArrayList(1);
	tlOperands.add(0, new PdfNumber(-ty));
	processor.invokeOperator(new PdfLiteral("TL"), tlOperands);
	processor.invokeOperator(new PdfLiteral("Td"), operands);
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float tx = ((PdfNumber) operands.get(0)).floatValue();
	float ty = ((PdfNumber) operands.get(1)).floatValue();

	Matrix translationMatrix = new Matrix(tx, ty);
	processor.textMatrix = translationMatrix.multiply(processor.textLineMatrix);
	processor.textLineMatrix = processor.textMatrix;
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfName fontResourceName = (PdfName) operands.get(0);
	float size = ((PdfNumber) operands.get(1)).floatValue();

	PdfDictionary fontsDictionary = processor.resources.getAsDict(PdfName.FONT);
	CMapAwareDocumentFont font = new CMapAwareDocumentFont((PRIndirectReference) fontsDictionary.get(fontResourceName));

	processor.gs().font = font;
	processor.gs().fontSize = size;

}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	float a = ((PdfNumber) operands.get(0)).floatValue();
	float b = ((PdfNumber) operands.get(1)).floatValue();
	float c = ((PdfNumber) operands.get(2)).floatValue();
	float d = ((PdfNumber) operands.get(3)).floatValue();
	float e = ((PdfNumber) operands.get(4)).floatValue();
	float f = ((PdfNumber) operands.get(5)).floatValue();
	Matrix matrix = new Matrix(a, b, c, d, e, f);
	GraphicsState gs = (GraphicsState) processor.gsStack.peek();
	gs.ctm = gs.ctm.multiply(matrix);
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfNumber leading = (PdfNumber) operands.get(0);
	processor.gs().leading = leading.floatValue();
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfNumber scale = (PdfNumber) operands.get(0);
	processor.gs().horizontalScaling = scale.floatValue();
}
 

PdfObject getColorspace() {
    if (icc_profile != null) {
        if ((colorType & 2) == 0)
            return PdfName.DEVICEGRAY;
        else
            return PdfName.DEVICERGB;
    }
    if (gamma == 1f && !hasCHRM) {
        if ((colorType & 2) == 0)
            return PdfName.DEVICEGRAY;
        else
            return PdfName.DEVICERGB;
    }
    else {
        PdfArray array = new PdfArray();
        PdfDictionary dic = new PdfDictionary();
        if ((colorType & 2) == 0) {
            if (gamma == 1f)
                return PdfName.DEVICEGRAY;
            array.add(PdfName.CALGRAY);
            dic.put(PdfName.GAMMA, new PdfNumber(gamma));
            dic.put(PdfName.WHITEPOINT, new PdfLiteral("[1 1 1]"));
            array.add(dic);
        }
        else {
            PdfObject wp = new PdfLiteral("[1 1 1]");
            array.add(PdfName.CALRGB);
            if (gamma != 1f) {
                PdfArray gm = new PdfArray();
                PdfNumber n = new PdfNumber(gamma);
                gm.add(n);
                gm.add(n);
                gm.add(n);
                dic.put(PdfName.GAMMA, gm);
            }
            if (hasCHRM) {
                float z = yW*((xG-xB)*yR-(xR-xB)*yG+(xR-xG)*yB);
                float YA = yR*((xG-xB)*yW-(xW-xB)*yG+(xW-xG)*yB)/z;
                float XA = YA*xR/yR;
                float ZA = YA*((1-xR)/yR-1);
                float YB = -yG*((xR-xB)*yW-(xW-xB)*yR+(xW-xR)*yB)/z;
                float XB = YB*xG/yG;
                float ZB = YB*((1-xG)/yG-1);
                float YC = yB*((xR-xG)*yW-(xW-xG)*yW+(xW-xR)*yG)/z;
                float XC = YC*xB/yB;
                float ZC = YC*((1-xB)/yB-1);
                float XW = XA+XB+XC;
                float YW = 1;//YA+YB+YC;
                float ZW = ZA+ZB+ZC;
                PdfArray wpa = new PdfArray();
                wpa.add(new PdfNumber(XW));
                wpa.add(new PdfNumber(YW));
                wpa.add(new PdfNumber(ZW));
                wp = wpa;
                PdfArray matrix = new PdfArray();
                matrix.add(new PdfNumber(XA));
                matrix.add(new PdfNumber(YA));
                matrix.add(new PdfNumber(ZA));
                matrix.add(new PdfNumber(XB));
                matrix.add(new PdfNumber(YB));
                matrix.add(new PdfNumber(ZB));
                matrix.add(new PdfNumber(XC));
                matrix.add(new PdfNumber(YC));
                matrix.add(new PdfNumber(ZC));
                dic.put(PdfName.MATRIX, matrix);
            }
            dic.put(PdfName.WHITEPOINT, wp);
            array.add(dic);
        }
        return array;
    }
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfNumber charSpace = (PdfNumber) operands.get(0);
	processor.gs().characterSpacing = charSpace.floatValue();
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfNumber wordSpace = (PdfNumber) operands.get(0);
	processor.gs().wordSpacing = wordSpace.floatValue();
}