@Override
@NotNull
public LogicalPosition offsetToLogicalPosition(final int offset, boolean softWrapAware) {
assert isValid();
int lineNumber = myDocumentWindow.getLineNumber(offset);
int lineStartOffset = myDocumentWindow.getLineStartOffset(lineNumber);
int column = calcLogicalColumnNumber(offset - lineStartOffset, lineNumber, lineStartOffset);
return new LogicalPosition(lineNumber, column);
}
private LogicalPosition fitInsideEditor(LogicalPosition pos) {
int lineCount = myDocumentWindow.getLineCount();
if (pos.line >= lineCount) {
pos = new LogicalPosition(lineCount - 1, pos.column);
}
int lineLength =
myDocumentWindow.getLineEndOffset(pos.line) - myDocumentWindow.getLineStartOffset(pos.line);
if (pos.column >= lineLength) {
pos = new LogicalPosition(pos.line, Math.max(0, lineLength - 1));
}
return pos;
}
@NotNull
public LogicalPosition injectedToHost(@NotNull LogicalPosition pos) {
assert isValid();
// beware the virtual space
int column = pos.column;
int lineStartOffset = myDocumentWindow.getLineStartOffset(pos.line);
int lineEndOffset = myDocumentWindow.getLineEndOffset(pos.line);
if (column > lineEndOffset - lineStartOffset) {
// in virtual space, calculate the host pos as an offset from the line end
int delta = column - (lineEndOffset - lineStartOffset);
int baseOffsetInHost = myDocumentWindow.injectedToHost(lineEndOffset);
LogicalPosition lineStartPosInHost = myDelegate.offsetToLogicalPosition(baseOffsetInHost);
return new LogicalPosition(lineStartPosInHost.line, lineStartPosInHost.column + delta);
} else {
int offset = lineStartOffset + column;
int hostOffset = getDocument().injectedToHost(offset);
int hostLineNumber = getDocument().getDelegate().getLineNumber(hostOffset);
int hostLineStart = getDocument().getDelegate().getLineStartOffset(hostLineNumber);
return new LogicalPosition(hostLineNumber, hostOffset - hostLineStart);
}
}
@Override
public int logicalPositionToOffset(@NotNull final LogicalPosition pos) {
int lineStartOffset = myDocumentWindow.getLineStartOffset(pos.line);
return calcOffset(pos.column, pos.line, lineStartOffset);
}