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Add a couple of services to swap image order around

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2012-07-03 00:37:44 +00:00
parent 2265d40073
commit a01a54a522
1 changed files with 75 additions and 0 deletions
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75
src/com/webcodepro/applecommander/storage/Disk.java
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@ -632,4 +632,79 @@ public class Disk {
protected void setImageOrder(ImageOrder imageOrder) { protected void setImageOrder(ImageOrder imageOrder) {
this.imageOrder = imageOrder; this.imageOrder = imageOrder;
} }
/**
* Change to a different ImageOrder. Remains in DOS 3.3 format but the
* underlying order can chage.
*
* @see ImageOrder
*/
public void makeDosOrder()
{
DosOrder doso = new DosOrder(new ByteArrayImageLayout(Disk.APPLE_140KB_DISK));
changeImageOrderByTrackAndSector(getImageOrder(), doso);
setImageOrder(doso);
}
/**
* Change to a different ImageOrder. Remains in ProDOS format but the
* underlying order can change.
*
* @see ImageOrder
*/
public void makeProdosOrder()
{
ProdosOrder pdo = new ProdosOrder(new ByteArrayImageLayout(Disk.APPLE_140KB_DISK));
changeImageOrderByBlock(getImageOrder(), pdo);
setImageOrder(pdo);
}
/**
* Change ImageOrder from source order to target order by copying sector by
* sector.
*/
private void changeImageOrderByTrackAndSector(ImageOrder sourceOrder, ImageOrder targetOrder)
{
if (!sameSectorsPerDisk(sourceOrder, targetOrder)) {
throw new IllegalArgumentException(textBundle.get("Disk.ResizeDiskError"));
}
for (int track = 0; track < sourceOrder.getTracksPerDisk(); track++) {
for (int sector = 0; sector < sourceOrder.getSectorsPerTrack(); sector++) {
byte[] data = sourceOrder.readSector(track, sector);
targetOrder.writeSector(track, sector, data);
}
}
}
/**
* Change ImageOrder from source order to target order by copying block by
* block.
*/
private void changeImageOrderByBlock(ImageOrder sourceOrder, ImageOrder targetOrder)
{
if (!sameBlocksPerDisk(sourceOrder, targetOrder)) {
throw new IllegalArgumentException(textBundle.get("Disk.ResizeDiskError"));
}
for (int block = 0; block < sourceOrder.getBlocksOnDevice(); block++) {
byte[] blockData = sourceOrder.readBlock(block);
targetOrder.writeBlock(block, blockData);
}
}
/**
* Answers true if the two disks have the same number of blocks per disk.
*/
private static boolean sameBlocksPerDisk(ImageOrder sourceOrder, ImageOrder targetOrder)
{
return sourceOrder.getBlocksOnDevice() == targetOrder.getBlocksOnDevice();
}
/**
* Answers true if the two disks have the same number of sectors per disk.
*/
private static boolean sameSectorsPerDisk(ImageOrder sourceOrder, ImageOrder targetOrder)
{
return sourceOrder.getSectorsPerDisk() == targetOrder.getSectorsPerDisk();
}
} }