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package jogamp.opengl.util.pngj.chunks;
import java.util.Calendar;
import jogamp.opengl.util.pngj.ImageInfo;
import jogamp.opengl.util.pngj.PngHelperInternal;
import jogamp.opengl.util.pngj.PngjException;
/**
* tIME chunk.
* <p>
* see http://www.w3.org/TR/PNG/#11tIME
*/
public class PngChunkTIME extends PngChunkSingle {
public final static String ID = ChunkHelper.tIME;
// http://www.w3.org/TR/PNG/#11tIME
private int year, mon, day, hour, min, sec;
public PngChunkTIME(ImageInfo info) {
super(ID, info);
}
@Override
public ChunkOrderingConstraint getOrderingConstraint() {
return ChunkOrderingConstraint.NONE;
}
@Override
public ChunkRaw createRawChunk() {
ChunkRaw c = createEmptyChunk(7, true);
PngHelperInternal.writeInt2tobytes(year, c.data, 0);
c.data[2] = (byte) mon;
c.data[3] = (byte) day;
c.data[4] = (byte) hour;
c.data[5] = (byte) min;
c.data[6] = (byte) sec;
return c;
}
@Override
public void parseFromRaw(ChunkRaw chunk) {
if (chunk.len != 7)
throw new PngjException("bad chunk " + chunk);
year = PngHelperInternal.readInt2fromBytes(chunk.data, 0);
mon = PngHelperInternal.readInt1fromByte(chunk.data, 2);
day = PngHelperInternal.readInt1fromByte(chunk.data, 3);
hour = PngHelperInternal.readInt1fromByte(chunk.data, 4);
min = PngHelperInternal.readInt1fromByte(chunk.data, 5);
sec = PngHelperInternal.readInt1fromByte(chunk.data, 6);
}
@Override
public void cloneDataFromRead(PngChunk other) {
PngChunkTIME x = (PngChunkTIME) other;
year = x.year;
mon = x.mon;
day = x.day;
hour = x.hour;
min = x.min;
sec = x.sec;
}
public void setNow(int secsAgo) {
Calendar d = Calendar.getInstance();
d.setTimeInMillis(System.currentTimeMillis() - 1000 * (long) secsAgo);
year = d.get(Calendar.YEAR);
mon = d.get(Calendar.MONTH) + 1;
day = d.get(Calendar.DAY_OF_MONTH);
hour = d.get(Calendar.HOUR_OF_DAY);
min = d.get(Calendar.MINUTE);
sec = d.get(Calendar.SECOND);
}
public void setYMDHMS(int yearx, int monx, int dayx, int hourx, int minx, int secx) {
year = yearx;
mon = monx;
day = dayx;
hour = hourx;
min = minx;
sec = secx;
}
public int[] getYMDHMS() {
return new int[] { year, mon, day, hour, min, sec };
}
/** format YYYY/MM/DD HH:mm:SS */
public String getAsString() {
return String.format("%04d/%02d/%02d %02d:%02d:%02d", year, mon, day, hour, min, sec);
}
}
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