Method preloadPendingGeometries

app/src/UI/WindowManager.cpp:796–837

* @brief Pre-stashes saved geometries so registerWindow can apply them per-window before first * paint, avoiding the minimumSize flash. */

 * paint, avoiding the minimumSize flash.
 */
void UI::WindowManager::preloadPendingGeometries(const QJsonObject& layout)
{
  m_pendingGeometries.clear();
  m_manualGeometries.clear();
  m_manualMargins.clear();
  if (layout.isEmpty() || !layout.contains("geometries"))
    return;

  if (layout["autoLayout"].toBool(true))
    return;

  const int savedCanvasW  = layout["canvasWidth"].toInt(0);
  const int savedCanvasH  = layout["canvasHeight"].toInt(0);
  const int canvasW       = static_cast<int>(width());
  const int canvasH       = static_cast<int>(height());
  const int marginCanvasW = savedCanvasW > 0 ? savedCanvasW : canvasW;
  const int marginCanvasH = savedCanvasH > 0 ? savedCanvasH : canvasH;
  m_manualCanvasWidth     = marginCanvasW;
  m_manualCanvasHeight    = marginCanvasH;

  const QHash<StableKey, int> stableLookup = buildStableKeyToWindowId();

  const QJsonArray geometries = layout["geometries"].toArray();
  for (const auto& val : std::as_const(geometries)) {
    const QJsonObject winGeom = val.toObject();
    const int id              = resolveSavedWindowId(winGeom, stableLookup, m_windows);
    if (id < 0)
      continue;

    const int x = static_cast<int>(SerialStudio::toDouble(winGeom["x"], 0.0));
    const int y = static_cast<int>(SerialStudio::toDouble(winGeom["y"], 0.0));
    const int w = static_cast<int>(SerialStudio::toDouble(winGeom["width"], 200.0));
    const int h = static_cast<int>(SerialStudio::toDouble(winGeom["height"], 150.0));
    const QRect geom(x, y, w, h);
    const QMargins margins = manualMarginsForGeometry(geom, marginCanvasW, marginCanvasH);
    const QRect anchored   = anchoredGeometry(geom, margins, canvasW, canvasH);

    m_manualGeometries.insert(id, geom);
    m_manualMargins.insert(id, margins);
    m_pendingGeometries.insert(id, anchored);
  }
}

/**
 * @brief Reconciles m_windowOrder against the authoritative taskbar order.