public void deletBackwards() {
if (caretPos == 0) {
TextBlock tb = caretBlock.previousTextBlock();
if (tb == null) {
return;
} else {
caretBlock = tb;
caretPos = caretBlock.textLength();
}
}
if (caretBlock.textLength() == 1) {
TextBlock tb = caretBlock.previousTextBlock();
int newPos = tb.textLength();
caretBlock.remove();
if (tb == null) {
caretBlock = textBoard.firstTextBlock();
caretPos = 0;
} else {
caretBlock = tb;
caretPos = newPos;
}
} else {
caretBlock.deleteCharBefore(caretPos);
caretPos -= 1;
}
textBoard.repaint();
}
private void insertPuncBeforeNonPunc(TextBlock tb, char c) {
TextBlock bpr = tb.previousTextBlock();
if (bpr instanceof PunctuationBlock) {
insertPuncInPunc(bpr, c, bpr.textLength());
} else {
addNewPuncBlockAfter(bpr, c);
}
}
private void insertLetterBeforeNonWord(TextBlock tb, char c) {
TextBlock bpr = tb.previousTextBlock();
if (bpr instanceof WordBlock) {
insertLetterInWord(bpr, c, bpr.textLength());
} else {
addNewWordBlockAfter(bpr, c);
}
}
public void caretLeft() {
if (caretBlock == null) {
return;
}
if (caretPos > 0) {
caretPos -= 1;
} else {
TextBlock tb = caretBlock.previousTextBlock();
if (tb == null) {
} else {
caretBlock = tb;
caretPos = caretBlock.textLength() - 1;
}
}
textBoard.repaint();
}
private void newline() {
if (caretPos == 0) {
TextBlock tbp = caretBlock.previousTextBlock();
if (tbp != null) {
tbp.newlineAfter();
}
} else if (caretPos == caretBlock.textLength()) {
caretBlock.newlineAfter();
caretBlock = caretBlock.nextTextBlock();
caretPos = 1;
} else {
caretBlock.insertNewline(caretPos);
caretBlock = caretBlock.nextTextBlock();
caretPos = 1;
}
}