65 lines
2.4 KiB
Java
Executable File
65 lines
2.4 KiB
Java
Executable File
package com.bytezone.diskbrowser.prodos;
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import com.bytezone.diskbrowser.utilities.Utility;
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// -----------------------------------------------------------------------------------//
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public abstract class DirectoryHeader extends CatalogEntry implements ProdosConstants
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// -----------------------------------------------------------------------------------//
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{
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final int entryLength;
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final int entriesPerBlock;
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final int fileCount;
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// ---------------------------------------------------------------------------------//
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DirectoryHeader (ProdosDisk parentDisk, byte[] entryBuffer, int blockNo, int entryNo)
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// ---------------------------------------------------------------------------------//
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{
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super (parentDisk, entryBuffer, blockNo, entryNo);
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entryLength = entryBuffer[31] & 0xFF;
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entriesPerBlock = entryBuffer[32] & 0xFF;
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fileCount = Utility.getShort (entryBuffer, 33);
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String getText ()
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// ---------------------------------------------------------------------------------//
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{
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return String.format ("%s %04X", super.getText (), fileCount);
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}
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// ---------------------------------------------------------------------------------//
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public void listFileEntries (StringBuilder text)
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// ---------------------------------------------------------------------------------//
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{
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int blockNo = this.blockNo;
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do
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{
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byte[] buffer = disk.readBlock (blockNo);
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int ptr = 4;
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int entryNo = 1;
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for (int i = 0; i < 13; i++)
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{
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int nameLength = buffer[ptr] & 0x0F;
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int storageType = (buffer[ptr] & 0xF0) >>> 4;
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if (nameLength > 0 && storageType < 0x0E)
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{
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String name = new String (buffer, ptr + 1, nameLength);
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int blocksUsed = Utility.getShort (buffer, ptr + 0x13);
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int fileType = buffer[ptr + 0x10] & 0xFF;
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int keyPointer = Utility.getShort (buffer, ptr + 0x11);
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int headerPointer = Utility.getShort (buffer, ptr + 0x25);
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text.append (String.format ("%04X:%02X %-15s %s %04X %s %04X %04X%n",
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blockNo, entryNo, name, storageTypes[storageType], blocksUsed,
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fileTypes[fileType], keyPointer, headerPointer));
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}
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ptr += 0x27;
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++entryNo;
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}
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blockNo = Utility.getShort (buffer, 2);
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} while (blockNo != 0);
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}
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} |