@Override
public Box getCaretShape() {
TextLocation caretLocation = getCaretLocation();
TypedLayout line = getLines().get(caretLocation.line);
Box caretShape = line.getCaretShape(caretLocation.index);
caretShape.translate(getXOffset(line), getY(caretLocation));
return caretShape;
}
public int getAbsoluteY(TextLocation location) {
int height = 0;
for (int i = 0; i < location.line; i++) {
TypedLayout layout = getLines().get(i);
height += layout.getHeightWithLeading();
}
return height;
}
public TypedLayout getLineAt(int y) {
int remainingY = y - getYOffset();
ArrayList<TypedLayout> lines = getLines();
for (TypedLayout line : lines) {
int lineHeight = line.getHeight();
if (lineHeight > remainingY) return line;
else remainingY -= lineHeight;
}
return lines.get(lines.size() - 1);
}
@Override
public Dimension getTextDimensions() {
if (!hasText()) return new Dimension(0, 0);
int height = 0;
int width = 0;
for (TypedLayout layout : getLines()) {
height += layout.getHeight();
int lineWidth = layout.getWidth();
if (lineWidth > width) width = lineWidth;
}
return new Dimension(width, height);
}
@Override
public TextLocation getLocationAt(Point point) {
int remainingY = point.y - getYOffset();
ArrayList<TypedLayout> lines = getLines();
for (int lineNumber = 0; lineNumber < lines.size(); lineNumber++) {
TypedLayout line = lines.get(lineNumber);
int lineHeight = line.getHeight();
if (lineHeight > remainingY) {
int lineIndex = line.getIndexAt(point.x - getXOffset(line));
return TextLocation.at(lineNumber, lineIndex);
} else {
remainingY -= lineHeight;
}
}
return TextLocation.fromIndex(lines, getText().length());
}
public void moveCaretToNewLine(int lineDelta) {
ArrayList<TypedLayout> lines = getLines();
int newLineNumber = caretLocation.line + lineDelta;
if (newLineNumber >= 0 && newLineNumber < lines.size()) {
TextLocation origin = verticalOrigin != null ? verticalOrigin : caretLocation;
int desiredX = lines.get(origin.line).getX(origin.index);
TypedLayout newLine = lines.get(newLineNumber);
int newIndex = newLine.getIndexAt(desiredX);
TextLocation newLocation = TextLocation.at(newLineNumber, newIndex);
setCaretLocation(newLocation);
verticalOrigin = origin;
}
}
@Override
public ArrayList<Box> getSelectionRegions() {
ArrayList<Box> regions = new ArrayList<Box>();
boolean startsAtCaret = getCaretLocation().before(getSelectionLocation());
TextLocation start = startsAtCaret ? getCaretLocation() : getSelectionLocation();
TextLocation end = startsAtCaret ? getSelectionLocation() : getCaretLocation();
ArrayList<TypedLayout> lines = getLines();
int y = getY(start);
for (int i = start.line; i <= end.line; i++) {
TypedLayout line = lines.get(i);
int startX = i == start.line ? line.getX(start.index) + getXOffset(line) : 0;
int endX =
i == end.line ? line.getX(end.index) + getXOffset(line) : getContainer().getWidth();
regions.add(new Box(startX, y, endX - startX, line.getHeight()));
y += line.getHeight() + line.getLeading();
}
return regions;
}
public int getXOffset(TypedLayout line) {
HorizontalAlignmentValue horizontalAlignment =
getContainer().getStyle().getCompiledHorizontalAlignment();
return horizontalAlignment.getX(line.getWidth(), getContainer().getBounds());
}
public void sendCaretToEndOfLine() {
final TextLocation caret = getCaretLocation();
TypedLayout caretLine = getLines().get(caret.line);
setCaretLocation(TextLocation.at(caret.line, caretLine.visibleLength()));
}