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persistable sclass G22ScreenPartsPanel extends G22CRUDAndDetailPanel<G22ScreenPart> {
  SimpleCRUD_v2<G22ScreenPart> makeCRUD() {
    var crud = new SimpleCRUD_v2<>(g22utils.concepts(), G22ScreenPart);
    crud.addButton("Add all screens", rThread addAllScreens);
    ret crud;
  }
  
  void addAllScreens {
    uniq(g22utils.concepts(), G22ScreenPart,
      name := "All screens",
      bounds := combinedScreenRects());
  }
  
  JComponent makeDetailView(G22ScreenPart screenPart) {
    var maxSize = 100;
  
    var full = combinedScreenRect();
    var rect = screenPart.bounds;
    
    var scale = min(doubleRatio(maxSize, full.w()), doubleRatio(maxSize, full.h()));
    
    var image = whiteImage(iround(scale*full.w()), iround(scale*full.h()));
    
    if (rect != null) {
      var scaled = scaleRect(rect, scale);
      fillRect(image, scaled, java.awt.Color.gray);
    }
    
    image = addBorderToImage(image, java.awt.Color.black, 1);

    ret g22utils.stdImageSurface(image);
  }
  
  selfType g22utils(G22Utils g22utils) { super.g22utils(g22utils); this; }
}