dmolony-DiskBrowser/src/com/bytezone/diskbrowser/applefile/IconFile.java

201 lines
5.6 KiB
Java
Raw Normal View History

2015-06-01 09:35:51 +00:00
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.HexFormatter;
public class IconFile extends AbstractFile
{
private final int iBlkNext;
private final int iBlkID;
private final int iBlkPath;
private final String iBlkName;
private final List<Icon> icons = new ArrayList<IconFile.Icon> ();
public IconFile (String name, byte[] buffer)
{
super (name, buffer);
iBlkNext = HexFormatter.getLong (buffer, 0);
iBlkID = HexFormatter.getWord (buffer, 4);
iBlkPath = HexFormatter.getLong (buffer, 6);
iBlkName = HexFormatter.getHexString (buffer, 10, 16);
int ptr = 26;
while (true)
{
int dataLen = HexFormatter.getWord (buffer, ptr);
if (dataLen == 0)
break;
icons.add (new Icon (buffer, ptr));
ptr += dataLen;
}
}
@Override
public String getText ()
{
StringBuilder text = new StringBuilder ("Name : " + name + "\n\n");
text.append (String.format ("Next Icon file .. %d%n", iBlkNext));
text.append (String.format ("Block ID ........ %d%n", iBlkID));
text.append (String.format ("Block path ...... %d%n", iBlkPath));
text.append (String.format ("Block name ...... %s%n", iBlkName));
text.append ("\n");
for (Icon icon : icons)
{
text.append (icon);
text.append ("\n\n");
}
return text.toString ();
}
class Icon
{
byte[] buffer;
int iDataLen;
String pathName;
String dataName;
int iDataType;
int iDataAux;
Image largeImage;
Image smallImage;
public Icon (byte[] fullBuffer, int ptr)
{
iDataLen = HexFormatter.getWord (fullBuffer, ptr);
buffer = new byte[iDataLen];
System.arraycopy (fullBuffer, ptr, buffer, 0, buffer.length);
int len = buffer[2] & 0xFF;
pathName = new String (buffer, 3, len);
len = buffer[66] & 0xFF;
dataName = new String (buffer, 67, len);
iDataType = HexFormatter.getWord (buffer, 82);
iDataAux = HexFormatter.getWord (buffer, 84);
largeImage = new Image (buffer, 86);
smallImage = new Image (buffer, 86 + largeImage.size ());
}
@Override
public String toString ()
{
StringBuilder text = new StringBuilder ();
text.append (String.format ("Data length .. %04X%n", iDataLen));
text.append (String.format ("Path name .... %s%n", pathName));
text.append (String.format ("Data name .... %s%n", dataName));
text.append ("\n");
text.append (largeImage);
text.append ("\n");
text.append ("\n");
text.append (smallImage);
return text.toString ();
}
}
class Image
{
int iconType;
int iconSize;
int iconHeight;
int iconWidth;
byte[] main;
byte[] mask;
public Image (byte[] buffer, int ptr)
{
iconType = HexFormatter.getWord (buffer, ptr);
iconSize = HexFormatter.getWord (buffer, ptr + 2);
iconHeight = HexFormatter.getWord (buffer, ptr + 4);
iconWidth = HexFormatter.getWord (buffer, ptr + 6);
main = new byte[iconSize];
mask = new byte[iconSize];
System.arraycopy (buffer, ptr + 8, main, 0, iconSize);
System.arraycopy (buffer, ptr + 8 + iconSize, mask, 0, iconSize);
}
public int size ()
{
return 8 + iconSize * 2;
}
@Override
public String toString ()
{
StringBuilder text = new StringBuilder ();
text.append (String.format ("Icon type .... %04X%n", iconType));
text.append (String.format ("Icon size .... %d%n", iconSize));
text.append (String.format ("Icon height .. %d%n", iconHeight));
text.append (String.format ("Icon width ... %d%n%n", iconWidth));
appendIcon (text, main);
text.append ("\n\n");
appendIcon (text, mask);
return text.toString ();
}
/*
Offset Color RGB Mini-Palette
0 Black 000 0
1 Blue 00F 1
2 Yellow FF0 2
3 White FFF 3
4 Black 000 0
5 Red D00 1
6 Green 0E0 2
7 White FFF 3
8 Black 000 0
9 Blue 00F 1
10 Yellow FF0 2
11 White FFF 3
12 Black 000 0
13 Red D00 1
14 Green 0E0 2
15 White FFF 3
The displayMode word bits are defined as:
Bit 0 selectedIconBit 1 = invert image before copying
Bit 1 openIconBit 1 = copy light-gray pattern instead of image
Bit 2 offLineBit 1 = AND light-gray pattern to image being copied
Bits 3-7 reserved.
Bits 8-11 foreground color to apply to black part of black & white icons
Bits 12-15 background color to apply to white part of black & white icons
Bits 0-2 can occur at once and are tested in the order 1-2-0.
"Color is only applied to the black and white icons if bits 15-8 are not all 0.
Colored pixels in an icon are inverted by black pixels becoming white and any
other color of pixel becoming black."
*/
private void appendIcon (StringBuilder text, byte[] buffer)
{
int rowBytes = 1 + (iconWidth - 1) / 2;
for (int i = 0; i < main.length; i += rowBytes)
{
for (int ptr = i, max = i + rowBytes; ptr < max; ptr++)
{
int left = (byte) ((buffer[ptr] & 0xF0) >> 4);
int right = (byte) (buffer[ptr] & 0x0F);
text.append (String.format ("%X %X ", left, right));
}
text.append ("\n");
}
if (text.length () > 0)
text.deleteCharAt (text.length () - 1);
}
}
}