@Override
public void copyTo(
TextImage destination,
int startRowIndex,
int rows,
int startColumnIndex,
int columns,
int destinationRowOffset,
int destinationColumnOffset) {
// If the source image position is negative, offset the whole image
if (startColumnIndex < 0) {
destinationColumnOffset += -startColumnIndex;
columns += startColumnIndex;
startColumnIndex = 0;
}
if (startRowIndex < 0) {
startRowIndex += -startRowIndex;
rows = startRowIndex;
startRowIndex = 0;
}
// Make sure we can't copy more than is available
columns = Math.min(buffer[0].length - startColumnIndex, columns);
rows = Math.min(buffer.length - startRowIndex, rows);
// Adjust target lengths as well
columns = Math.min(destination.getSize().getColumns() - destinationColumnOffset, columns);
rows = Math.min(destination.getSize().getRows() - destinationRowOffset, rows);
if (columns <= 0 || rows <= 0) {
return;
}
TerminalSize destinationSize = destination.getSize();
if (destination instanceof BasicTextImage) {
int targetRow = destinationRowOffset;
for (int y = startRowIndex;
y < startRowIndex + rows && targetRow < destinationSize.getRows();
y++) {
System.arraycopy(
buffer[y],
startColumnIndex,
((BasicTextImage) destination).buffer[targetRow++],
destinationColumnOffset,
columns);
}
} else {
// Manually copy character by character
for (int y = startRowIndex; y < startRowIndex + rows; y++) {
for (int x = startColumnIndex; x < startColumnIndex + columns; x++) {
destination.setCharacterAt(
x - startColumnIndex + destinationColumnOffset,
y - startRowIndex + destinationRowOffset,
buffer[y][x]);
}
}
}
}
