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java.lang.Objectorg.faceless.pdf2.PDFFont
org.faceless.pdf2.Type1Font
public final class Type1Font
Create a new PostScript Type 1 font. This class of font is commonly used on UNIX systems. The standard 14 fonts are a special class of Type 1 font.
Type 1 fonts give each character shape, or "glyph", a name, in the same way the PDF documents refer to glyphs by name (hardly surprising really, seeing as both Type 1 fonts and PDF documents are defined by Adobe). Because text written to the PDF via this library is specified in Unicode, Type 1 fonts need a "mapping" from Unicode character to Glyph name.
For many fonts this isn't a problem. Font's based on the latin character set (more specifically, fonts implementing a subset of the Adobe Standard Glyph List) already have their mapping defined. If the glyphs in the font have names taken from this list, no further thought needs to be given to this issue.
If not, it is necessary for the developer to supply a mapping between Unicode
character and Glyph name. This is supplied as a Map
where either the
key is a String
representing the name and the value is a
Character
, or the inverse (the key is a Character
and the
value a String
). The former ordering is more useful for most Type 1
fonts, the latter was the only format accepted by this class prior to version
2.7.6.
OpenTypeFont
,
StandardFont
Field Summary | |
---|---|
static Map |
AGL
This Map represents the Adobe Standard Glyph Lists. |
Constructor Summary | |
---|---|
Type1Font(InputStream afm,
InputStream pfb)
Create a new Type 1 font, using the standard Adobe mapping from unicode to glyph name. |
|
Type1Font(InputStream afm,
InputStream pfb,
Map mapping)
Create a new Type 1 font, using a user defined mapping from unicode to glyph name. |
Method Summary | |
---|---|
float |
getAscender()
Get the Ascender for the font (the maximum height above the baseline the font extends), as a proportion of the point size. |
float |
getDefaultLeading()
Get the default leading for this font - the preferred distance between two successive baselines of text. |
float |
getDescender()
Get the Descender for the font (the maximum height below the baseline the font extends), as a proportion of the point size. |
float |
getStrikeoutPosition()
Get the strikeout position, as a proportion of the font size. |
float |
getStrikeoutThickness()
Get the strikeout thickness, as a proportion of the font size. |
float |
getSubscriptPosition()
Get the recommended position of a sub-script version of this font, as a proportion of the sub-scripted font size. |
float |
getSubscriptSize()
Get the recommended size of a super/sub script version of this font, as a proportion of the normal font size. |
float |
getSuperscriptPosition()
Get the recommended position of a super-script version of this font, as a proportion of the sub-scripted font size. |
float |
getUnderlinePosition()
Get the underline position, as a proportion of the font size. |
float |
getUnderlineThickness()
Get the underline thickness, as a proportion of the font size. |
float |
getXHeight()
Get the X-Height of the font - normally the height of a lower-case 'x' character |
boolean |
isMonospace()
Return true if every character has the same width (like Courier), false if every character is potentially a different width (like Times-Roman) |
String |
toString()
|
Methods inherited from class org.faceless.pdf2.PDFFont |
---|
getAvailableFeatures, getBaseName, getBottom, getCharWidth, getCharWidth, getFeature, getKerning, getKerning, getLeft, getRight, getTop, isDefined, isDefined, isHorizontal, ligaturize, ligaturize, requote, requote, setFeature, versionBold, versionItalic, versionNonBold, versionNonItalic, versionRegular |
Methods inherited from class java.lang.Object |
---|
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
---|
public static final Map AGL
Map
represents the Adobe Standard Glyph Lists. Some fonts
which claim to be encoded using the Adobe Standard Glyph mapping deviate
from the list slightly. Using this Map you can easily create a slight
variation on the standard mapping to pass into the Type 1 constructor.
For example, lets say your font has a glyph called "hyphenminus" instead
of the standard name "hyphen". You could create the font like so:
Map mymap = new HashMap(Type1Font.AGL); mymap.put("hyphenminus", new Character('-')); PDFFont myfont = new Type1Font(afmfile, pfbfile, mymap);
Constructor Detail |
---|
public Type1Font(InputStream afm, InputStream pfb) throws IOException
afm
- The .afm
(Adobe Font Metrics) file specifying
the metrics for this fontpfb
- The .pfb
or .pfa
file containing
the glyph shapes to be embedded in the PDF. If the font is not to be
embedded, this should be null.
IOException
- If the .afm
or .pfb
InputStream can't be read or parsedpublic Type1Font(InputStream afm, InputStream pfb, Map mapping) throws IOException
Create a new Type 1 font, using a user defined mapping from unicode to glyph name. The font can be embedded, which ensures that your viewers will see exactly the font you specified, at the cost of increasing the file size. If a font is not embedded and the viewer does not have the same font installed, the viewing software will substitute an "appropriate" font.
afm
- The .afm
(Adobe Font Metrics) file specifying the
metrics for this fontpfb
- The .pfb
or .pfa
file containing the glyph
shapes to be embedded in the PDF. If the font is not to be embedded, this should be null.mapping
- The mapping between unicode and glyph name, as described inu
the class header above. A value of null
uses the Adobe Standard Glyph List
IOException
- If the .afm
or .pfb file can't be read or parsedMethod Detail |
---|
public float getDefaultLeading()
PDFFont
Get the default leading for this font - the preferred distance between two successive baselines of text. Values are a ratio of the font size, and are typically between 1 and 1.3
Note that the values of the different spacing-between-lines methods have
changed - in versions 1.0.4 and earlier this routine normally returned 1
and the spacing was set by the PDFStyle.setTextLineSpacing(float)
method.
Since 1.1, the values for these two methods are effectively reversed. See
the relevant method comments in the PDFStyle
class for more
information.
getDefaultLeading
in class PDFFont
public float getSubscriptPosition()
PDFFont
Get the recommended position of a sub-script version of this font, as a proportion of the sub-scripted font size. Value is almost always zero or negative.
For some fonts (like CJK or barcode fonts) where there is no concept of super or subscript, this value is entirely arbitrary.
getSubscriptPosition
in class PDFFont
public float getSuperscriptPosition()
PDFFont
Get the recommended position of a super-script version of this font, as a proportion of the sub-scripted font size. Value is always positive.
For some fonts (like CJK or barcode fonts) where there is no concept of super or subscript, this value is entirely arbitrary.
getSuperscriptPosition
in class PDFFont
public float getSubscriptSize()
PDFFont
Get the recommended size of a super/sub script version of this font, as a proportion of the normal font size. Typical value is around 0.6.
For some fonts (like CJK or barcode fonts) where there is no concept of super or subscript, this value is entirely arbitrary.
getSubscriptSize
in class PDFFont
public float getStrikeoutThickness()
PDFFont
getStrikeoutThickness
in class PDFFont
public float getStrikeoutPosition()
PDFFont
getStrikeoutPosition
in class PDFFont
public float getUnderlineThickness()
PDFFont
getUnderlineThickness
in class PDFFont
public float getUnderlinePosition()
PDFFont
getDescender()
method, the returned value is almost
always negative, indicating below the baseline.
getUnderlinePosition
in class PDFFont
public float getAscender()
PDFFont
getAscender
in class PDFFont
public float getDescender()
PDFFont
getDescender
in class PDFFont
public float getXHeight()
PDFFont
getXHeight
in class PDFFont
public boolean isMonospace()
PDFFont
isMonospace
in class PDFFont
public String toString()
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