How to use

addPropertyChangeListener

method

in

org.weasis.core.ui.model.graphic.Graphic

@Override
public void addGraphicChangeHandler(PropertyChangeListener graphicsChangeHandler) {
  if (Objects.nonNull(graphicsChangeHandler) && !graphicsListeners.contains(graphicsChangeHandler)) {
    graphicsListeners.add(graphicsChangeHandler);
    models.forEach(g -> g.addPropertyChangeListener(graphicsChangeHandler));
  }
}

public static void addGraphicToModel(ViewCanvas<?> canvas, GraphicLayer layer, Graphic graphic) {
  GraphicModel gm = canvas.getGraphicManager();
  graphic.setLayer(Optional.ofNullable(layer).orElseGet(() -> getOrBuildLayer(canvas, graphic.getLayerType())));
  graphic.updateLabel(Boolean.TRUE, canvas);
  for (PropertyChangeListener listener : canvas.getGraphicManager().getGraphicsListeners()) {
    graphic.addPropertyChangeListener(listener);
  }
  gm.addGraphic(graphic);
}

public static Graphic drawFromCurrentGraphic(ViewCanvas<?> canvas, Graphic graphicCreator) {
  Objects.requireNonNull(canvas);
  Graphic newGraphic = Optional.ofNullable(graphicCreator).orElse(MeasureToolBar.selectionGraphic);
  GraphicLayer layer = getOrBuildLayer(canvas, newGraphic.getLayerType());
  if (!layer.getVisible() || !(Boolean) canvas.getActionValue(ActionW.DRAWINGS.cmd())) {
    JOptionPane.showMessageDialog(canvas.getJComponent(), Messages.getString("AbstractLayerModel.msg_not_vis"), //$NON-NLS-1$
      Messages.getString("AbstractLayerModel.draw"), //$NON-NLS-1$
      JOptionPane.ERROR_MESSAGE);
    return null;
  } else {
    Graphic graph = newGraphic.copy();
    if (graph != null) {
      graph.updateLabel(Boolean.TRUE, canvas);
      for (PropertyChangeListener listener : canvas.getGraphicManager().getGraphicsListeners()) {
        graph.addPropertyChangeListener(listener);
      }
      graph.setLayer(layer);
      canvas.getGraphicManager().addGraphic(graph);
    }
    return graph;
  }
}

graphic.setLayer(layer);
for (PropertyChangeListener listener : modelList.getGraphicsListeners()) {
  graphic.addPropertyChangeListener(listener);

graphic.addPropertyChangeListener(listener);
  graphic.addPropertyChangeListener(listener);