/** @return the lazily created font descriptor of this font */
protected PDFontDescriptor createFontDescriptor() {
COSObject base = cosGetField(DK_FontDescriptor);
if (base.isNull()) {
return createBuiltinFontDescriptor();
}
return (PDFontDescriptorEmbedded) PDFontDescriptorEmbedded.META.createFromCos(base);
}
/**
* set an encoding for the font
*
* @param newFontEncoding the new encoding to use
*/
public void setEncoding(Encoding newFontEncoding) {
cachedEncoding = newFontEncoding;
if (newFontEncoding != null) {
COSObject ref = cachedEncoding.cosGetObject();
if (ref == null || ref.isNull()) {
cosRemoveField(DK_Encoding);
} else {
cosSetField(DK_Encoding, ref);
}
} else {
cosRemoveField(DK_Encoding);
}
}
/**
* Create the encoding for the font. The encoding is specified either "by default", as a known
* encoding name or a completely user defined difference encoding.
*
* <p>This is redefined for composite fonts, which use a different implementation.
*
* @return The encoding object for the font.
* @throws IllegalArgumentException When the encoding defined in the font is not supported.
*/
protected Encoding createEncoding() {
COSObject encoding = cosGetField(PDFont.DK_Encoding);
if (encoding.isNull()) {
return createDefaultEncoding();
}
if (encoding instanceof COSName) {
try {
return Encoding.createNamed((COSName) encoding);
} catch (Exception e) {
// found PDF where the base name was /NULL...
return createDefaultEncoding();
}
}
if (encoding instanceof COSDictionary) {
return DifferenceEncoding.create((COSDictionary) encoding, this);
}
throw new IllegalArgumentException("encoding not supported");
}
/**
* Answer true if this font's program is embedded within the document.
*
* @return Answer true if this font's program is embedded within the document.
*/
public boolean isEmbedded() {
// shortcut for builtin fonts
COSObject base = cosGetField(DK_FontDescriptor);
if (base.isNull() && !(this instanceof PDFontType0)) {
return false;
}
if (getFontDescriptor() == null) {
return false;
}
if (getFontDescriptor().getFontFile() != null) {
return true;
}
if (getFontDescriptor().getFontFile2() != null) {
return true;
}
if (getFontDescriptor().getFontFile3() != null) {
return true;
}
return false;
}
public COSObject cosGetData() {
COSObject data = cosGetField(DK_Data);
return data.isNull() ? null : data;
}
