Function runScanSTLHomeImpl

renderer.js:703–778

()

/**
 * Fixed preview columns per size; tile dimension scales to fill row width.
 * S → 10 columns; M → 6 columns; L → 4 columns.
 */
function computePreviewTilePxFromWidth(availableWidth, horizontalGap = 2) {
  const g = horizontalGap;
  const aw = Math.max(0, availableWidth);
  const cols = PREVIEW_COLUMNS[currentPreviewTileSize] || PREVIEW_COLUMNS.m;
  if (cols <= 0) return PREVIEW_TILE_PX.m;

  // Use fixed column count and scale tile so the row fills available width.
  const computed = Math.floor((aw - (cols - 1) * g) / cols);
  return Math.max(1, computed);
}

function getPreviewTileSizePx() {
  const grid = document.querySelector('.file-grid');
  if (
    currentGridView === 'preview' &&
    grid &&
    typeof grid._previewTilePx === 'number' &&
    grid._previewTilePx > 0
  ) {
    return grid._previewTilePx;
  }
  return PREVIEW_TILE_PX[currentPreviewTileSize] || PREVIEW_TILE_PX.m;
}

function getPreviewTileDims() {
  const tile = getPreviewTileSizePx();
  return { width: tile, height: tile, itemWidth: tile };
}

// Per-folder view preference (when "View Entire Library" is off): remember list/preview/detailed per scanned root
async function getPerFolderViewPrefs() {
  try {
    const raw = await window.electron.getSetting('perFolderView');
    if (!raw) return {};
    const parsed = JSON.parse(raw);
    return typeof parsed === 'object' && parsed !== null ? parsed : {};
  } catch (_) {
    return {};
  }
}

async function getViewForFolder(folderPath) {
  if (!folderPath) return null;
  const prefs = await getPerFolderViewPrefs();
  if (prefs[folderPath] && ['list', 'preview', 'detailed'].includes(prefs[folderPath])) {
    return prefs[folderPath];
  }
  const lastUsed = await window.electron.getSetting('lastUsedView');
  if (lastUsed && ['list', 'preview', 'detailed'].includes(lastUsed)) return lastUsed;
  const globalView = await window.electron.getSetting('gridView');
  if (globalView && ['list', 'preview', 'detailed'].includes(globalView)) return globalView === 'small' ? 'preview' : globalView;
  return 'detailed';
}

async function savePerFolderView(folderPath, view) {
  if (!folderPath || !['list', 'preview', 'detailed'].includes(view)) return;