@Override
public void performAction(ActionEvent e) {
TabProjectSettings ts = window.getProject().getSettingsManager().get(TabProjectSettings.class);
Buffer activeBuffer = window.getDocList().getActiveDoc().getActiveBuffer();
TextInterval selectionOrCurrentLine = activeBuffer.getSelectionOrCurrentLine();
String text = selectionOrCurrentLine.getText();
StringBuilder builder = new StringBuilder();
for (int j = 0; j < ts.getTabSize(); j++) builder.append(" ");
text = text.replace(builder.toString(), "\t");
activeBuffer.replaceText(selectionOrCurrentLine, text, null);
}
