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/*
* Copyright (C) 2009.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 or
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
package uk.me.parabola.imgfmt.app.mdr;
import uk.me.parabola.imgfmt.ReadFailedException;
import uk.me.parabola.imgfmt.app.CommonHeader;
import uk.me.parabola.imgfmt.app.ImgFileReader;
import uk.me.parabola.imgfmt.app.ImgFileWriter;
import uk.me.parabola.imgfmt.app.Section;
import uk.me.parabola.imgfmt.app.srt.Sort;
/**
* The header of the MDR file.
*
* Note that there are many possible sections in this file and that
* only a certain number of them are needed. There are also many
* different lengths for the record sizes of the sections. Finally
* there are different sections and record sizes for the version
* that gets loaded into the gmapsupp.
*
* @author Steve Ratcliffe
*/
public class MDRHeader
extends CommonHeader
{
private static final int MAX_SECTIONS =
40;
private final Section
[] sections =
new Section
[MAX_SECTIONS+
1];
private Sort sort
;
public MDRHeader
(int headerLen
) {
super(headerLen,
"GARMIN MDR");
// Do a quick initialisation. Link every section to the
// previous one so that all the positions are correct.
for (int i =
1; i
< sections.
length; i++
) {
Section prev =
(i ==
0) ? null : sections
[i -
1];
sections
[i
] =
new Section
(prev
);
}
sections
[1].
setPosition(getHeaderLength
());
}
protected void readFileHeader
(ImgFileReader reader
) throws ReadFailedException
{
throw new UnsupportedOperationException("not implemented yet");
}
/**
* Write out the application header.
*/
protected void writeFileHeader
(ImgFileWriter writer
) {
writer.
putChar((char) sort.
getCodepage());
writer.
putChar((char) sort.
getId1());
writer.
putChar((char) sort.
getId2());
writer.
putChar((char) 14);
sections
[1].
writeSectionInfo(writer,
true,
true);
sections
[2].
writeSectionInfo(writer,
true,
true);
sections
[3].
writeSectionInfo(writer,
true,
true);
sections
[4].
writeSectionInfo(writer,
true,
true);
sections
[5].
writeSectionInfo(writer,
true,
true);
sections
[6].
writeSectionInfo(writer,
true,
true);
sections
[7].
writeSectionInfo(writer,
true,
true);
sections
[8].
writeSectionInfo(writer,
true,
true);
sections
[9].
writeSectionInfo(writer,
true,
true);
sections
[10].
writeSectionInfo(writer,
false,
true);
sections
[11].
writeSectionInfo(writer,
true,
true);
sections
[12].
writeSectionInfo(writer,
true,
true);
sections
[13].
writeSectionInfo(writer,
true,
true);
sections
[14].
writeSectionInfo(writer,
true,
true);
sections
[15].
writeSectionInfo(writer
);
writer.
put((byte) 0);
sections
[16].
writeSectionInfo(writer,
true,
true);
sections
[17].
writeSectionInfo(writer,
false,
true);
for (int n =
18; n
<=
30; n++
)
sections
[n
].
writeSectionInfo(writer,
true,
true);
}
public void setItemSize
(int sectionNumber,
int itemSize
) {
Section section = sections
[sectionNumber
];
section.
setItemSize((char) itemSize
);
}
public void setExtraValue
(int sectionNumber,
int extraValue
) {
Section section = sections
[sectionNumber
];
section.
setExtraValue(extraValue
);
}
public void setPosition
(int sectionNumber,
int position
) {
sections
[sectionNumber
].
setPosition(position
);
}
public void setEnd
(int sectionNumber,
int position
) {
Section s = sections
[sectionNumber
];
s.
setSize(position - s.
getPosition());
}
public Sort getSort
() {
return sort
;
}
public void setSort
(Sort sort
) {
this.
sort = sort
;
}
}