public void testCreation() {
final TiffDirectoryEntrySet entrySet = new TiffDirectoryEntrySet();
final TiffDirectoryEntry[] entries = entrySet.getEntries();
assertNotNull(entries);
assertEquals(0, entries.length);
}
public void testSetEntry() {
final TiffDirectoryEntrySet entrySet = new TiffDirectoryEntrySet();
final TiffDirectoryEntry entry = new TiffDirectoryEntry(new TiffShort(45), new TiffLong(45678));
entrySet.set(entry);
final TiffDirectoryEntry[] entries = entrySet.getEntries();
assertEquals(1, entries.length);
assertSame(entry, entries[0]);
}
public void testSetEntry_ReplaceAndOrderEntries() {
final TiffDirectoryEntrySet entrySet = new TiffDirectoryEntrySet();
final TiffDirectoryEntry entry1 =
new TiffDirectoryEntry(new TiffShort(45), new TiffLong(45678));
final TiffDirectoryEntry entry2 = new TiffDirectoryEntry(new TiffShort(43), new TiffLong(4234));
final TiffDirectoryEntry entry3 =
new TiffDirectoryEntry(new TiffShort(45), new TiffLong(42634));
entrySet.set(entry1);
entrySet.set(entry2);
entrySet.set(entry3);
final TiffDirectoryEntry[] entries = entrySet.getEntries();
assertEquals(2, entries.length);
assertSame(entry2, entries[0]);
assertSame(entry3, entries[1]);
}
public long getRequiredReferencedValuesSize() {
final TiffDirectoryEntry[] entries = entrySet.getEntries();
long size = 0;
for (final TiffDirectoryEntry entry : entries) {
if (entry.mustValuesBeReferenced()) {
size += entry.getValuesSizeInBytes();
}
}
return size;
}
private void computeOffsets(final long ifdOffset) {
final TiffDirectoryEntry[] entries = entrySet.getEntries();
long valuesOffset = computeStartOffsetForValues(entries.length, ifdOffset);
for (final TiffDirectoryEntry entry : entries) {
if (entry.mustValuesBeReferenced()) {
entry.setValuesOffset(valuesOffset);
valuesOffset += entry.getValuesSizeInBytes();
}
}
moveStripsTo(valuesOffset);
}
public void write(final ImageOutputStream ios, final long ifdOffset, final long nextIfdOffset)
throws IOException {
Guardian.assertGreaterThan("ifdOffset", ifdOffset, -1);
computeOffsets(ifdOffset);
ios.seek(ifdOffset);
final TiffDirectoryEntry[] entries = entrySet.getEntries();
new TiffShort(entries.length).write(ios);
long entryPosition = ios.getStreamPosition();
for (TiffDirectoryEntry entry : entries) {
ios.seek(entryPosition);
entry.write(ios);
entryPosition += TiffDirectoryEntry.BYTES_PER_ENTRY;
}
writeNextIfdOffset(ios, ifdOffset, nextIfdOffset);
}
public void testGetEntry() {
final TiffDirectoryEntrySet entrySet = new TiffDirectoryEntrySet();
final TiffShort tag1 = new TiffShort(45);
final TiffDirectoryEntry entry1 = new TiffDirectoryEntry(tag1, new TiffLong(45678));
final TiffShort tag2 = new TiffShort(60);
final TiffDirectoryEntry entry2 = new TiffDirectoryEntry(tag2, new TiffLong(4234));
final TiffShort tag3 = new TiffShort(44);
final TiffDirectoryEntry entry3 = new TiffDirectoryEntry(tag3, new TiffLong(42634));
final TiffShort noEntryTag = new TiffShort(66);
entrySet.set(entry1);
entrySet.set(entry2);
entrySet.set(entry3);
assertEquals(entry1, entrySet.getEntry(tag1));
assertEquals(entry2, entrySet.getEntry(tag2));
assertEquals(entry3, entrySet.getEntry(tag3));
assertNull(entrySet.getEntry(noEntryTag));
}
public long getRequiredIfdSize() {
final TiffDirectoryEntry[] entries = entrySet.getEntries();
return BYTES_FOR_NUMBER_OF_ENTRIES
+ entries.length * TiffDirectoryEntry.BYTES_PER_ENTRY
+ BYTES_FOR_NEXT_IFD_OFFSET;
}
public TiffDirectoryEntry getEntry(final TiffShort tag) {
return entrySet.getEntry(tag);
}
private void setEntry(final TiffDirectoryEntry entry) {
entrySet.set(entry);
}
