/**
* Creates a new instance of BasicScaledBaselineTable for the given font, baseline and
* writingmode.
*
* @param font the font for which a baseline table is requested
* @param dominantBaselineIdentifier the dominant baseline given as an integer constant
* @param writingMode the writing mode given as an integer constant
* @return a scaled baseline table for the given font
*/
public static ScaledBaselineTable makeFontScaledBaselineTable(
Font font, int dominantBaselineIdentifier, int writingMode) {
return new BasicScaledBaselineTable(
font.getAscender(),
font.getDescender(),
font.getXHeight(),
dominantBaselineIdentifier,
writingMode);
}
/**
* Returns the effective hyphenation character for a font. The hyphenation character specified in
* XSL-FO may be substituted if it's not available in the font.
*
* @param font the font
* @return the effective hyphenation character.
*/
public char getHyphChar(org.apache.fop.fonts.Font font) {
char hyphChar = hyphenationCharacter.getCharacter();
if (font.hasChar(hyphChar)) {
return hyphChar; // short-cut
}
char effHyphChar = hyphChar;
boolean warn = false;
if (font.hasChar(HYPHEN_MINUS)) {
effHyphChar = HYPHEN_MINUS;
warn = true;
} else if (font.hasChar(MINUS_SIGN)) {
effHyphChar = MINUS_SIGN;
FontMetrics metrics = font.getFontMetrics();
if (metrics instanceof Typeface) {
Typeface typeface = (Typeface) metrics;
if ("SymbolEncoding".equals(typeface.getEncodingName())) {
// SymbolEncoding doesn't have HYPHEN_MINUS, so replace by MINUS_SIGN
} else {
// only warn if the encoding is not SymbolEncoding
warn = true;
}
}
} else {
effHyphChar = ' ';
FontMetrics metrics = font.getFontMetrics();
if (metrics instanceof Typeface) {
Typeface typeface = (Typeface) metrics;
if ("ZapfDingbatsEncoding".equals(typeface.getEncodingName())) {
// ZapfDingbatsEncoding doesn't have HYPHEN_MINUS, so replace by ' '
} else {
// only warn if the encoding is not ZapfDingbatsEncoding
warn = true;
}
}
}
if (warn) {
log.warn(
"Substituted specified hyphenation character (0x"
+ Integer.toHexString(hyphChar)
+ ") with 0x"
+ Integer.toHexString(effHyphChar)
+ " because the font doesn't have the specified hyphenation character: "
+ font.getFontTriplet());
}
return effHyphChar;
}
/**
* Returns the IPD for the hyphenation character for a font.
*
* @param font the font
* @return the IPD in millipoints for the hyphenation character.
*/
public int getHyphIPD(org.apache.fop.fonts.Font font) {
char hyphChar = getHyphChar(font);
return font.getCharWidth(hyphChar);
}