Method updateManualSnapIndicator

app/src/UI/WindowManager.cpp:1720–1735

* @brief Updates the manual-mode edge snap indicator based on the dragged window position. */

 * @brief Updates the manual-mode edge snap indicator based on the dragged window position.
 */
void UI::WindowManager::updateManualSnapIndicator(
  int newX, int newY, int w, int h, int canvasW, int canvasH)
{
  const auto snap = computeSnapRect(newX, newY, newX + w, newY + h, canvasW, canvasH);
  if (snap.has_value()) {
    m_snapIndicator        = *snap;
    m_snapIndicatorVisible = true;
    Q_EMIT snapIndicatorChanged();
    return;
  }

  if (m_snapIndicatorVisible) {
    m_snapIndicatorVisible = false;
    Q_EMIT snapIndicatorChanged();
  }
}

/**
 * @brief Applies a drag delta to the focused window and updates snap indicators.