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/*
* Copyright (C) 2007 Steve Ratcliffe
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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.
*
*
* Author: Steve Ratcliffe
* Create date: Dec 16, 2007
*/
package test.display;
import uk.me.parabola.imgfmt.app.ImgFileReader;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
/**
* Print out the line sections.
*
* @author Steve Ratcliffe
*/
public class LineSectDisplayer
extends TypSectionDisplayer
{
private final ImgFileReader reader
;
private final PrintStream outStream
;
private final List<Integer> offsets =
new ArrayList<Integer>();
public LineSectDisplayer
(ImgFileReader reader,
PrintStream outStream
) {
this.
reader = reader
;
this.
outStream = outStream
;
}
public void print
() {
Displayer d =
new Displayer
(reader
);
d.
setTitle("Line type styles");
DisplayItem item = d.
item();
item.
addText("A list of line types, and pointers to their styles");
// Get the types first as they have the offsets into the styles
// section that we will need later.
reader.
position(0x3d
);
long typestart = reader.
get4();
int itemsize = reader.
get2u();
int size = reader.
get4();
// Now get the styles start, as needed
reader.
position(0x1f
);
int stylestart = reader.
get4();
d = printTypes
(typestart, itemsize, size
);
d.
print(outStream
);
reader.
position(0x1f
);
stylestart = reader.
get4();
size = reader.
get4();
d = printStyles
(stylestart, size
);
d.
print(outStream
);
}
/**
* Some details obtained from the referenced document.
*
* @see <a href="http://pinns.co.uk/osm/typformat.html">TYP format, N Willink</a>
*/
private Displayer printStyles
(int start,
int size
) {
Displayer d =
new Displayer
(reader
);
d.
setTitle("Line styles");
d.
setSectStart(start
);
reader.
position(start
);
// Actually print out the styles the best we can
for (int i =
0; i
< offsets.
size(); i++
) {
int off = start + offsets.
get(i
);
int end = start +
((i
< offsets.
size() -
1) ? offsets.
get(i +
1) : size
);
reader.
position(off
);
// The first two bytes appear to determine what comes next
//int flags = d.charValue("Flags %04x");
DisplayItem item = d.
byteItem();
int val = item.
getValue();
int type = val
& 0x7
;
int width =
(val
>> 3) & 0x1f
;
item.
addText("Type %x, width %d", type, width
);
int flags = d.
byteValue("Flags 0x%x");
boolean hasNight =
(type
& 1) !=
0;
switch (type
& ~
1) {
case 0:
d.
int3Value("Day #%06x");
d.
int3Value("Day #%06x");
if (hasNight
) {
d.
int3Value("Night #%06x");
d.
int3Value("Night #%06x");
}
break;
case 2:
d.
int3Value("Day #%06x");
if (hasNight
) {
d.
int3Value("Night #%06x");
d.
int3Value("Night #%06x");
}
break;
case 4:
d.
int3Value("Day #%06x");
d.
int3Value("Day #%06x");
if (hasNight
) {
d.
int3Value("Night #%06x");
}
break;
case 6:
d.
int3Value("Day #%06x");
if (hasNight
) {
d.
int3Value("Night #%06x");
}
break;
}
d.
rawValue(width
* 4,
"Pixmap data");
if (width ==
0) {
d.
byteValue("Line width %d");
if ((type
& ~
1) !=
6)
d.
byteValue("Border width %d");
}
if ((flags
& 0x1
) !=
0) // Has text
printLabels
(d
);
if ((flags
& 0x4
) !=
0) // Font info
printFontInfo
(d
);
// Now display everything that is left
d.
rawValue((int) (end - reader.
position()));
d.
gap();
}
return d
;
}
private Displayer printTypes
(long typestart,
int itemsize,
int size
) {
Displayer d =
new Displayer
(reader
);
d.
setTitle("Line types");
reader.
position(typestart
);
// These things really can and are different sizes.
long end = typestart + size
;
for (long pos = typestart
; pos
< end
; pos += itemsize
) {
DisplayItem item = d.
item();
int typ_id = reader.
get2u();
item.
setBytes2(typ_id
);
item.
addText("type %x",
(typ_id
>> 5));
// Get the offset into the shape style section.
item = d.
intItem(itemsize -
2);
int off = item.
getValue();
item.
addText("Style at offset %04x", off
);
offsets.
add(off
);
}
return d
;
}
}