PdfNumber provides two types of numbers, integer and real.
*
* Integers may be specified by signed or unsigned constants. Reals may only be
* in decimal format.
* This object is described in the 'Portable Document Format Reference Manual version 1.3'
* section 4.3 (page 37).
*
* @see PdfObject
* @see BadPdfFormatException
*/
public class PdfNumber extends PdfObject {
/** actual value of this PdfNumber, represented as a double */
private double value;
// constructors
/**
* Constructs a PdfNumber-object.
*
* @param content value of the new PdfNumber-object
*/
public PdfNumber(String content) {
super(NUMBER);
try {
value = Double.valueOf(content.trim()).doubleValue();
setContent(content);
}
catch (NumberFormatException nfe){
throw new RuntimeException(content + " is not a valid number - " + nfe.toString());
}
}
/**
* Constructs a new INTEGER PdfNumber-object.
*
* @param value value of the new PdfNumber-object
*/
public PdfNumber(int value) {
super(NUMBER);
this.value = value;
setContent(String.valueOf(value));
}
/**
* Constructs a new REAL PdfNumber-object.
*
* @param value value of the new PdfNumber-object
*/
public PdfNumber(double value) {
super(NUMBER);
this.value = value;
setContent(ByteBuffer.formatDouble(value));
}
/**
* Constructs a new REAL PdfNumber-object.
*
* @param value value of the new PdfNumber-object
*/
public PdfNumber(float value) {
this((double)value);
}
// methods returning the value of this object
/**
* Returns the primitive int value of this object.
*
* @return a value
*/
public int intValue() {
return (int) value;
}
/**
* Returns the primitive double value of this object.
*
* @return a value
*/
public double doubleValue() {
return value;
}
public float floatValue() {
return (float)value;
}
// other methods
/**
* Increments the value of the PdfNumber-object with 1.
*/
public void increment() {
value += 1.0;
setContent(ByteBuffer.formatDouble(value));
}
}