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## org.faceless.pdf2
Class PDFFont

    java.lang.Object
      org.faceless.pdf2.PDFFont

All Implemented Interfaces:
  Cloneable

Direct Known Subclasses:
  OpenTypeFont, StandardCJKFont, StandardFont, Type1Font

    public abstract class PDFFont

extends Object

The PDFFont is the abstract superclass for all Fonts in a PDF document. It defines properties which are common to all fonts, regardless of writing direction.

Since:
  1.0
See Also:
  `PDFStyle`, `LayoutBox`

Method Summary
`abstract float` | `getAscender()` Get the Ascender for the font (the maximum height above the baseline the font extends), as a proportion of the point size.
`String[]` | `getAvailableFeatures()` Return the list of available features for this font.
`String` | `getBaseName()` Return the Base Font Name for this font.
`float` | `getBottom(String s)` Get the bottom-most Y co-ordinate if this String was rendered in 1 point high text at position (0,0)
`int` | `getCharWidth(char c)` Return the width of the specified character in millipoints if the font size was 1 point.
`int` | `getCharWidth(int codepoint)` Return the width of the specified character in millipoints if the font size was 1 point.
`abstract float` | `getDefaultLeading()` Get the default leading for this font - the preferred distance between two successive baselines of text.
`abstract float` | `getDescender()` Get the Descender for the font (the maximum height below the baseline the font extends), as a proportion of the point size.
`boolean` | `getFeature(String feature)` Returns whether the specified feature is currently set
`int` | `getKerning(char c1, char c2)` Get the horizontal character-to-character (or "pair-wise") kerning in this font for the specified characters, in millipoints.
`int` | `getKerning(int codepoint1, int codepoint2)` Get the horizontal character-to-character (or "pair-wise") kerning in this font for the specified characters, in millipoints.
`float` | `getLeft(String s)` Get the left-most X co-ordinate if this String was rendered in 1 point high text at position (0,0)
`float` | `getRight(String s)` Get the right-most X co-ordinate if this String was rendered in 1 point high text at position (0,0)
`abstract float` | `getStrikeoutPosition()` Get the strikeout position, as a proportion of the font size.
`abstract float` | `getStrikeoutThickness()` Get the strikeout thickness, as a proportion of the font size.
`abstract float` | `getSubscriptPosition()` Get the recommended position of a sub-script version of this font, as a proportion of the sub-scripted font size.
`abstract float` | `getSubscriptSize()` Get the recommended size of a super/sub script version of this font, as a proportion of the normal font size.
`abstract float` | `getSuperscriptPosition()` Get the recommended position of a super-script version of this font, as a proportion of the sub-scripted font size.
`float` | `getTop(String s)` Get the top-most Y co-ordinate if this String was rendered in 1 point high text at position (0,0)
`abstract float` | `getUnderlinePosition()` Get the underline position, as a proportion of the font size.
`abstract float` | `getUnderlineThickness()` Get the underline thickness, as a proportion of the font size.
`abstract float` | `getXHeight()` Get the X-Height of the font - normally the height of a lower-case 'x' character
`boolean` | `isDefined(char c)` Return true if the specified Unicode character is defined in the font.
`boolean` | `isDefined(int codepoint)` Return true if the specified Unicode character is defined in the font.
`boolean` | `isHorizontal()` Return true if the specified font is written Left-to-Right or Right-to-Left.
`abstract 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)
`int` | `ligaturize(char[] buf, int off, int len, Locale locale)` Substitute ligatures into the specified character array where appropriate.
`String` | `ligaturize(String s, Locale locale)` Return the specified string with ligatures substituted where appropriate.
`boolean` | `requote(char[] buf, int off, int len, Locale locale)` Substitute "curly-quotes" into the specified buffer where appropriate.
`String` | `requote(String s, Locale l)` Substitute curly quotes into the document.
`void` | `setFeature(String feature, boolean on)` Set or clear an optional feature on a font.
`String` | `toString()`
`PDFFont` | `versionBold()` Return a bold version of the current font, if available.
`PDFFont` | `versionItalic()` Return an italic version of the current font, if available.
`PDFFont` | `versionNonBold()` Return a non-bold version of the current font, if available.
`PDFFont` | `versionNonItalic()` Return a non-italic version of the current font, if available.
`PDFFont` | `versionRegular()` Return a non-bold, non-italic version of the current font, if available.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Method Detail

### getLeft

    public final float getLeft(String s)

  Get the left-most X co-ordinate if this String was rendered in 1 point high text at position (0,0)

### getTop

    public final float getTop(String s)

  Get the top-most Y co-ordinate if this String was rendered in 1 point high text at position (0,0)

### getBottom

    public final float getBottom(String s)

  Get the bottom-most Y co-ordinate if this String was rendered in 1 point high text at position (0,0)

### getRight

    public final float getRight(String s)

  Get the right-most X co-ordinate if this String was rendered in 1 point high text at position (0,0)

### isDefined

    public final boolean isDefined(char c)

  Return true if the specified Unicode character is defined in the font.

### isDefined

    public final boolean isDefined(int codepoint)

  Return true if the specified Unicode character is defined in the font. This method is identical to `isDefined(char)` but takes an `int`, to cater for the new Unicode 4.0 codepoints added in Java 1.5.

  Parameters:
    `codepoint` - a Unicode codepoint between U+0000 and U+10FFFD
  Since:
    2.2.6

### getCharWidth

    public final int getCharWidth(char c)

  Return the width of the specified character in millipoints if the font size was 1 point.

  Since:
    1.2

### getCharWidth

    public int getCharWidth(int codepoint)

  Return the width of the specified character in millipoints if the font size was 1 point. This method is identical to the `getCharWidth(char)` method but takes an `int` to cater for the new Unicode 4.0 codepoints added in Java 1.5.

  Parameters:
    `codepoint` - a Unicode codepoint between U+0000 and U+10FFFD
  Since:
    2.2.6

### getBaseName

    public String getBaseName()

  Return the Base Font Name for this font.

### getKerning

    public final int getKerning(char c1,
                                char c2)

  Get the horizontal character-to-character (or "pair-wise") kerning in this font for the specified characters, in millipoints. This is the distance to move the text cursor left after drawing character `c1` in order to correctly position character `c2`. For many fonts and combinations of characters, this returns zero.

  Since:
    1.1.14
  See Also:
    `PDFStyle.setTrackKerning(float)`

### getKerning

    public int getKerning(int codepoint1,
                          int codepoint2)

  Get the horizontal character-to-character (or "pair-wise") kerning in this font for the specified characters, in millipoints. This method is identical to `getKerning(char,char)` but takes ints, to handle the new Unicode 4.0 characters defined in Java 1.5

  Parameters:
    `codepoint1` - a Unicode codepoint between U+0000 and U+10FFFD
    `codepoint2` - a Unicode codepoint between U+0000 and U+10FFFD
  Since:
    2.2.6

### isHorizontal

    public final boolean isHorizontal()

  Return true if the specified font is written Left-to-Right or Right-to-Left.

### isMonospace

    public abstract 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)

  Since:
    1.1.23

### getAscender

    public abstract float getAscender()

  Get the Ascender for the font (the maximum height above the baseline the font extends), as a proportion of the point size.

  Since:
    1.1

### getDescender

    public abstract float getDescender()

  Get the Descender for the font (the maximum height below the baseline the font extends), as a proportion of the point size. The returned value is usually negative.

  Since:
    1.1

### getDefaultLeading

    public abstract float getDefaultLeading()

  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.

### getUnderlineThickness

    public abstract float getUnderlineThickness()

  Get the underline thickness, as a proportion of the font size.

  Since:
    1.1

### getUnderlinePosition

    public abstract float getUnderlinePosition()

  Get the underline position, as a proportion of the font size. Like the `getDescender()` method, the returned value is almost always negative, indicating below the baseline.

  Since:
    1.1

### getStrikeoutThickness

    public abstract float getStrikeoutThickness()

  Get the strikeout thickness, as a proportion of the font size.

  Since:
    1.1

### getStrikeoutPosition

    public abstract float getStrikeoutPosition()

  Get the strikeout position, as a proportion of the font size.

  Since:
    1.1

### getSubscriptSize

    public abstract float getSubscriptSize()

  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.

  Since:
    1.1

### getSuperscriptPosition

    public abstract float getSuperscriptPosition()

  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.

  Since:
    1.1

### getSubscriptPosition

    public abstract float getSubscriptPosition()

  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.

  Since:
    1.1

### getXHeight

    public abstract float getXHeight()

  Get the X-Height of the font - normally the height of a lower-case 'x' character

  Since:
    2.11.18

### setFeature

    public void setFeature(String feature,
                           boolean on)

  Set or clear an optional feature on a font. For most fonts the only possible features are "latinligatures", which controls the use of ligatures for "fi", "fl" and so on, and "kerning" to turn on or off the standard inter-character kerning for fonts (both these default to on). OpenType fonts have `more` to choose from.

  Parameters:
    `feature` - the feature name
    `on` - whether to set or clear the feature
  Since:
    2.11.21

### getAvailableFeatures

    public String[] getAvailableFeatures()

  Return the list of available features for this font.

  Returns:
    a list of feature names that can be passed to `setFeature(java.lang.String, boolean)`
  Since:
    2.11.22
  See Also:
    `setFeature(java.lang.String, boolean)`

### getFeature

    public boolean getFeature(String feature)

  Returns whether the specified feature is currently set

  Parameters:
    `feature` - the feature name
  Since:
    2.11.23

### ligaturize

    public int ligaturize(char[] buf,
                          int off,
                          int len,
                          Locale locale)

  Substitute ligatures into the specified character array where appropriate. Which ligatures are available depends on those that are defined in the font. The zero-width non-joiner (U+200D) can be used to inhibit ligatures Also replaces all instances of the Unicode Line or Paragraph separators (U+2028 and U+2029) with a standard newline character.

  Parameters:
    `buf` - the buffer to modify
    `off` - the offset into the buffer for the start of the data
    `len` - the length of the data in the buffer
    `locale` - controls which language the buffer is in. Currently not used.
  Returns:
    the new length of the buffer - will always be the same (if no substitutions were made) or less than the original length.
  Since:
    1.2.1

### requote

    public boolean requote(char[] buf,
                           int off,
                           int len,
                           Locale locale)

  Substitute "curly-quotes" into the specified buffer where appropriate. The resulting buffer will be the same length, but may have had it's contents altered. If this font does not have the required quote characters, no substitution is made.

  Parameters:
    `buf` - the buffer to modify
    `off` - the offset into the buffer to the start of the data
    `len` - the length of the data in the buffer
    `locale` - determines which style of quote is substituted. Recognized languages are english, dutch, italian, spanish, portuguese, catalan, turkish, czech, german, slovak, danish, swedish, norwegian, finnish, polish and hungarian
  Returns:
    true if quotes were substituted, false otherwise
  Since:
    1.2.1

### requote

    public String requote(String s,
                          Locale l)

  Substitute curly quotes into the document. As for `requote(char[],int,int,Locale)` but returns the end result as a (possibly) new String. Obviously not as efficient, but more convenient

  Since:
    2.0

### ligaturize

    public String ligaturize(String s,
                             Locale locale)

  Return the specified string with ligatures substituted where appropriate. As for the `ligaturize(char[],int,int,Locale)` method, but returns an entirely new String. Obviously not as efficient as the other method, but more convenient.

  Parameters:
    `s` - the string to ligaturize
    `locale` - controls which language the buffer is in. Currently not used.
  Since:
    1.1

### versionItalic

    public PDFFont versionItalic()

  Return an italic version of the current font, if available. By default this just returns this font.

  Since:
    2.11

### versionBold

    public PDFFont versionBold()

  Return a bold version of the current font, if available. By default this just returns this font.

  Since:
    2.11

### versionNonBold

    public PDFFont versionNonBold()

  Return a non-bold version of the current font, if available. By default this just returns this font.

  Since:
    2.11

### versionNonItalic

    public PDFFont versionNonItalic()

  Return a non-italic version of the current font, if available. By default this just returns this font.

  Since:
    2.11

### versionRegular

    public PDFFont versionRegular()

  Return a non-bold, non-italic version of the current font, if available. By default this just returns this font.

  Since:
    2.11

### toString

    public String toString()

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