com.lowagie.text.pdf.PdfLiteral Java Examples

@Override
public void invokeOperator(PdfLiteral pdfLiteral, ArrayList arrayList) {
    super.invokeOperator(pdfLiteral, arrayList);
    String op = pdfLiteral.toString();
    if (Objects.equals(op, "q")) {
        if (textModeActive) {
            throw new RuntimeException("Cannot mix text mode and graphics operations.");
        }

        graphicsState.push(Boolean.TRUE);
    } else if (Objects.equals(op, "Q")) {
        if (textModeActive) {
            throw new RuntimeException("Cannot mix text mode and graphics operations.");
        }

        graphicsState.pop();
    } else if (Objects.equals(op, "BT")) {
        textModeActive = true;
    } else if (Objects.equals(op, "ET")) {
        textModeActive = false;
    }
}
 

@Override
public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfName dictionaryName = (PdfName) operands.get(0);
	PdfDictionary extGState = processor.resources.getAsDict(PdfName.EXTGSTATE);
	if (extGState == null) {
		throw new IllegalArgumentException("Resources do not contain ExtGState entry. Unable to process operator " + operator);
	}
	PdfDictionary gsDic = extGState.getAsDict(dictionaryName);
	if (gsDic == null) {
		throw new IllegalArgumentException(dictionaryName + " is an unknown graphics state dictionary");
	}

	// at this point, all we care about is the FONT entry in the GS dictionary
	PdfArray fontParameter = gsDic.getAsArray(PdfName.FONT);
	if (fontParameter != null) {
		CMapAwareDocumentFont font = new CMapAwareDocumentFont((PRIndirectReference) fontParameter.getPdfObject(0));
		float size = fontParameter.getAsNumber(1).floatValue();

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

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);
}
 

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
	PdfName dictionaryName = (PdfName) operands.get(0);
	PdfDictionary extGState = processor.resources.getAsDict(PdfName.EXTGSTATE);
	if (extGState == null) {
		throw new IllegalArgumentException(
				"Resources do not contain ExtGState entry. Unable to process operator " + operator);
	}
	PdfDictionary gsDic = extGState.getAsDict(dictionaryName);
	if (gsDic == null) {
		throw new IllegalArgumentException(dictionaryName + " is an unknown graphics state dictionary");
	}

	// at this point, all we care about is the FONT entry in the GS dictionary
	PdfArray fontParameter = gsDic.getAsArray(PdfName.FONT);
	if (fontParameter != null) {
		CMapAwareDocumentFont font = new CMapAwareDocumentFont(
				(PRIndirectReference) fontParameter.getPdfObject(0));
		float size = fontParameter.getAsNumber(1).floatValue();

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

@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);
}
 

private PdfObject generateFileId(PAdESCommonParameters parameters) {
	try (ByteBuffer buf = new ByteBuffer(90)) {
		String deterministicId = DSSUtils.getDeterministicId(parameters.getSigningDate(), null);
		byte[] id = deterministicId.getBytes();
		buf.append('[').append('<');
		for (int k = 0; k < 16; ++k) {
			buf.appendHex(id[k]);
		}
		buf.append('>').append('<');
		for (int k = 0; k < 16; ++k) {
			buf.appendHex(id[k]);
		}
		buf.append('>').append(']');
		return new PdfLiteral(buf.toByteArray());
	} catch (IOException e) {
		throw new DSSException("Unable to generate the fileId", e);
	}
}
 

/**
 * Processes PDF syntax
 *
 * @param contentBytes the bytes of a content stream
 * @param resources the resources that come with the content stream
 */
public void processContent(byte[] contentBytes, PdfDictionary resources) {

	reset();
	this.resources = resources;
	try {
		PdfContentParser ps = new PdfContentParser(new PRTokeniser(contentBytes));
		ArrayList operands = new ArrayList();
		while (ps.parse(operands).size() > 0) {
			PdfLiteral operator = (PdfLiteral) operands.get(operands.size() - 1);
			invokeOperator(operator, operands);
		}

	} catch (Exception e) {
		throw new ExceptionConverter(e);
	}

}
 

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) {
	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 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) {
	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 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) {
	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();
		}
	}

}
 

/**
    * Processes PDF syntax
    * @param contentBytes	the bytes of a content stream
    * @param resources		the resources that come with the content stream
    */
public void processContent(byte[] contentBytes, PdfDictionary resources) {
	this.resources.push(resources);
	try {
		PdfContentParser ps = new PdfContentParser(new PRTokeniser(contentBytes));
		ArrayList operands = new ArrayList();
		while (ps.parse(operands).size() > 0) {
			PdfLiteral operator = (PdfLiteral) operands.get(operands.size() - 1);
			invokeOperator(operator, operands);
		}
	} catch (Exception e) {
		throw new ExceptionConverter(e);
	}
	this.resources.pop();
}
 

/**
    * Invokes an operator.
    * @param operator	the PDF Syntax of the operator
    * @param operands	a list with operands
    */
public void invokeOperator(PdfLiteral operator, ArrayList operands) {
	ContentOperator op = operators.get(operator.toString());
	if (op == null) {
		// skipping unssupported operator
		return;
	}
	op.invoke(this, operator, operands);
}
 

@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);
}
 

/**
 * Invokes an operator.
 *
 * @param operator the PDF Syntax of the operator
 * @param operands a list with operands
 */
public void invokeOperator(PdfLiteral operator, ArrayList operands) {
	ContentOperator op = (ContentOperator) operators.get(operator.toString());
	if (op == null) {
		// System.out.println("Skipping operator " + operator);
		return;
	}

	op.invoke(this, operator, operands);
}
 

@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) {
	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();
		}
	}

}
 

@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;

}
 

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

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

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();
}
 

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

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

	processor.displayPdfString(string, 0);
}