/**
* Process the text so that it will render with a combination of fonts if needed.
*
* @param text the text
* @return a <CODE>Phrase</CODE> with one or more chunks
*/
public Phrase process(String text) {
int fsize = fonts.size();
if (fsize == 0) throw new IndexOutOfBoundsException("No font is defined.");
char cc[] = text.toCharArray();
int len = cc.length;
StringBuffer sb = new StringBuffer();
Font font = null;
int lastidx = -1;
Phrase ret = new Phrase();
for (int k = 0; k < len; ++k) {
char c = cc[k];
if (c == '\n' || c == '\r') {
sb.append(c);
continue;
}
if (Utilities.isSurrogatePair(cc, k)) {
int u = Utilities.convertToUtf32(cc, k);
for (int f = 0; f < fsize; ++f) {
font = (Font) fonts.get(f);
if (font.getBaseFont().charExists(u)) {
if (lastidx != f) {
if (sb.length() > 0 && lastidx != -1) {
Chunk ck = new Chunk(sb.toString(), (Font) fonts.get(lastidx));
ret.add(ck);
sb.setLength(0);
}
lastidx = f;
}
sb.append(c);
sb.append(cc[++k]);
break;
}
}
} else {
for (int f = 0; f < fsize; ++f) {
font = (Font) fonts.get(f);
if (font.getBaseFont().charExists(c)) {
if (lastidx != f) {
if (sb.length() > 0 && lastidx != -1) {
Chunk ck = new Chunk(sb.toString(), (Font) fonts.get(lastidx));
ret.add(ck);
sb.setLength(0);
}
lastidx = f;
}
sb.append(c);
break;
}
}
}
}
if (sb.length() > 0) {
Chunk ck = new Chunk(sb.toString(), (Font) fonts.get(lastidx == -1 ? 0 : lastidx));
ret.add(ck);
}
return ret;
}
/**
* Truncates this <CODE>PdfChunk</CODE> if it's too long for the given width.
*
* <p>Returns <VAR>null</VAR> if the <CODE>PdfChunk</CODE> wasn't truncated.
*
* @param width a given width
* @return the <CODE>PdfChunk</CODE> that doesn't fit into the width.
*/
PdfChunk truncate(float width) {
if (image != null) {
if (image.getScaledWidth() > width) {
PdfChunk pc = new PdfChunk("", this);
value = "";
attributes.remove(Chunk.IMAGE);
image = null;
font = PdfFont.getDefaultFont();
return pc;
} else return null;
}
int currentPosition = 0;
float currentWidth = 0;
// it's no use trying to split if there isn't even enough place for a space
if (width < font.width()) {
String returnValue = value.substring(1);
value = value.substring(0, 1);
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
// loop over all the characters of a string
// or until the totalWidth is reached
int length = value.length();
boolean surrogate = false;
char character;
while (currentPosition < length) {
// the width of every character is added to the currentWidth
surrogate = Utilities.isSurrogatePair(value, currentPosition);
if (surrogate) currentWidth += font.width(Utilities.convertToUtf32(value, currentPosition));
else currentWidth += font.width(value.charAt(currentPosition));
if (currentWidth > width) break;
if (surrogate) currentPosition++;
currentPosition++;
}
// if all the characters fit in the total width, null is returned (there is no overflow)
if (currentPosition == length) {
return null;
}
// otherwise, the string has to be truncated
// currentPosition -= 2;
// we have to chop off minimum 1 character from the chunk
if (currentPosition == 0) {
currentPosition = 1;
if (surrogate) ++currentPosition;
}
String returnValue = value.substring(currentPosition);
value = value.substring(0, currentPosition);
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
/**
* Splits this <CODE>PdfChunk</CODE> if it's too long for the given width.
*
* <p>Returns <VAR>null</VAR> if the <CODE>PdfChunk</CODE> wasn't truncated.
*
* @param width a given width
* @return the <CODE>PdfChunk</CODE> that doesn't fit into the width.
*/
PdfChunk split(float width) {
newlineSplit = false;
if (image != null) {
if (image.getScaledWidth() > width) {
PdfChunk pc = new PdfChunk(Chunk.OBJECT_REPLACEMENT_CHARACTER, this);
value = "";
attributes = new HashMap();
image = null;
font = PdfFont.getDefaultFont();
return pc;
} else return null;
}
HyphenationEvent hyphenationEvent = (HyphenationEvent) noStroke.get(Chunk.HYPHENATION);
int currentPosition = 0;
int splitPosition = -1;
float currentWidth = 0;
// loop over all the characters of a string
// or until the totalWidth is reached
int lastSpace = -1;
float lastSpaceWidth = 0;
int length = value.length();
char valueArray[] = value.toCharArray();
char character = 0;
BaseFont ft = font.getFont();
boolean surrogate = false;
if (ft.getFontType() == BaseFont.FONT_TYPE_CJK && ft.getUnicodeEquivalent(' ') != ' ') {
while (currentPosition < length) {
// the width of every character is added to the currentWidth
char cidChar = valueArray[currentPosition];
character = (char) ft.getUnicodeEquivalent(cidChar);
// if a newLine or carriageReturn is encountered
if (character == '\n') {
newlineSplit = true;
String returnValue = value.substring(currentPosition + 1);
value = value.substring(0, currentPosition);
if (value.length() < 1) {
value = "\u0001";
}
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
currentWidth += font.width(cidChar);
if (character == ' ') {
lastSpace = currentPosition + 1;
lastSpaceWidth = currentWidth;
}
if (currentWidth > width) break;
// if a split-character is encountered, the splitPosition is altered
if (splitCharacter.isSplitCharacter(0, currentPosition, length, valueArray, thisChunk))
splitPosition = currentPosition + 1;
currentPosition++;
}
} else {
while (currentPosition < length) {
// the width of every character is added to the currentWidth
character = valueArray[currentPosition];
// if a newLine or carriageReturn is encountered
if (character == '\r' || character == '\n') {
newlineSplit = true;
int inc = 1;
if (character == '\r'
&& currentPosition + 1 < length
&& valueArray[currentPosition + 1] == '\n') inc = 2;
String returnValue = value.substring(currentPosition + inc);
value = value.substring(0, currentPosition);
if (value.length() < 1) {
value = " ";
}
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
surrogate = Utilities.isSurrogatePair(valueArray, currentPosition);
if (surrogate)
currentWidth +=
font.width(
Utilities.convertToUtf32(
valueArray[currentPosition], valueArray[currentPosition + 1]));
else currentWidth += font.width(character);
if (character == ' ') {
lastSpace = currentPosition + 1;
lastSpaceWidth = currentWidth;
}
if (surrogate) currentPosition++;
if (currentWidth > width) break;
// if a split-character is encountered, the splitPosition is altered
if (splitCharacter.isSplitCharacter(0, currentPosition, length, valueArray, null))
splitPosition = currentPosition + 1;
currentPosition++;
}
}
// if all the characters fit in the total width, null is returned (there is no overflow)
if (currentPosition == length) {
return null;
}
// otherwise, the string has to be truncated
if (splitPosition < 0) {
String returnValue = value;
value = "";
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
if (lastSpace > splitPosition && splitCharacter.isSplitCharacter(0, 0, 1, singleSpace, null))
splitPosition = lastSpace;
if (hyphenationEvent != null && lastSpace >= 0 && lastSpace < currentPosition) {
int wordIdx = getWord(value, lastSpace);
if (wordIdx > lastSpace) {
String pre =
hyphenationEvent.getHyphenatedWordPre(
value.substring(lastSpace, wordIdx),
font.getFont(),
font.size(),
width - lastSpaceWidth);
String post = hyphenationEvent.getHyphenatedWordPost();
if (pre.length() > 0) {
String returnValue = post + value.substring(wordIdx);
value = trim(value.substring(0, lastSpace) + pre);
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
}
}
String returnValue = value.substring(splitPosition);
value = trim(value.substring(0, splitPosition));
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
/**
* Converts the text into bytes to be placed in the document. The conversion is done according to
* the font and the encoding and the characters used are stored.
*
* @param text the text to convert
* @return the conversion
*/
byte[] convertToBytes(final String text) {
byte b[] = null;
switch (this.fontType) {
case BaseFont.FONT_TYPE_T3:
return this.baseFont.convertToBytes(text);
case BaseFont.FONT_TYPE_T1:
case BaseFont.FONT_TYPE_TT:
{
b = this.baseFont.convertToBytes(text);
final int len = b.length;
for (int k = 0; k < len; ++k) {
this.shortTag[b[k] & 0xff] = 1;
}
break;
}
case BaseFont.FONT_TYPE_CJK:
{
final int len = text.length();
for (int k = 0; k < len; ++k) {
this.cjkTag.put(this.cjkFont.getCidCode(text.charAt(k)), 0);
}
b = this.baseFont.convertToBytes(text);
break;
}
case BaseFont.FONT_TYPE_DOCUMENT:
{
b = this.baseFont.convertToBytes(text);
break;
}
case BaseFont.FONT_TYPE_TTUNI:
{
try {
int len = text.length();
int metrics[] = null;
final char glyph[] = new char[len];
int i = 0;
if (this.symbolic) {
b = PdfEncodings.convertToBytes(text, "symboltt");
len = b.length;
for (int k = 0; k < len; ++k) {
metrics = this.ttu.getMetricsTT(b[k] & 0xff);
if (metrics == null) {
continue;
}
this.longTag.put(
new Integer(metrics[0]),
new int[] {
metrics[0], metrics[1], this.ttu.getUnicodeDifferences(b[k] & 0xff)
});
glyph[i++] = (char) metrics[0];
}
} else {
for (int k = 0; k < len; ++k) {
int val;
if (Utilities.isSurrogatePair(text, k)) {
val = Utilities.convertToUtf32(text, k);
k++;
} else {
val = text.charAt(k);
}
metrics = this.ttu.getMetricsTT(val);
if (metrics == null) {
continue;
}
final int m0 = metrics[0];
final Integer gl = new Integer(m0);
if (!this.longTag.containsKey(gl)) {
this.longTag.put(gl, new int[] {m0, metrics[1], val});
}
glyph[i++] = (char) m0;
}
}
final String s = new String(glyph, 0, i);
b = s.getBytes(CJKFont.CJK_ENCODING);
} catch (final UnsupportedEncodingException e) {
throw new ExceptionConverter(e);
}
break;
}
}
return b;
}
