public int compress(InputStream in, OutputStream out, boolean force) throws IOException {
if ((mySavedBits <= 0) && (force == false)) {
myViewer.showError(
"compression uses " + (-mySavedBits) + " more bits\nuse force compression to compress");
return 0;
} else {
BitOutputStream bitsOut = new BitOutputStream(out);
myCompBits = 0;
// write store tree magic number
bitsOut.writeBits(BITS_PER_INT, STORE_COUNTS);
myCompBits += BITS_PER_INT;
// write header, non-saving-space code using SCF
for (int k = 0; k < ALPH_SIZE; k++) {
bitsOut.writeBits(BITS_PER_INT, myLetterCount[k]);
myCompBits += BITS_PER_INT;
}
// write compressed file
BitInputStream bitsin = new BitInputStream(in);
int curWord = bitsin.readBits(BITS_PER_WORD);
while (curWord != -1) {
writeCompFile(curWord, bitsOut);
curWord = bitsin.readBits(BITS_PER_WORD);
}
// Write pseudo EOF
writeCompFile(PSEUDO_EOF, bitsOut);
bitsOut.close();
if (myCompBits % 8 != 0) myCompBits = (myCompBits / 8 + 1) * 8;
return myCompBits;
}
}
protected void writeCompFile(int word, BitOutputStream out) {
String code = myMapping.get(word);
for (char c : code.toCharArray()) {
int bin = Integer.parseInt("" + c);
out.writeBits(1, bin);
}
myCompBits += code.length();
}
/**
* Write the SWF representation of this object to <code>out</code>.
*
* @param out the output stream to write on
* @exception IOException if an I/O error occurs.
*/
public void write(BitOutputStream out) throws IOException {
int entryLength = getEntryLength();
// Write the edge record and edge type flags first...
out.writeBits(3, 2);
// The SWF file holds entryLength-2, not the length itself...
out.writeBits(entryLength - 2, 4);
if (isHorizontal()) {
// Write the flags for "no general line, not vertical"
out.writeBits(0, 2);
// And write the X value...
out.writeBits(getX(), entryLength);
} else if (isVertical()) {
// Write the flags for "no general line, vertical"
out.writeBits(1, 2);
// And write the > value...
out.writeBits(getY(), entryLength);
} else {
// Write the flag for "general line"
out.writeBits(1, 1);
// ... and the actual data
out.writeBits(getX(), entryLength);
out.writeBits(getY(), entryLength);
}
}
