// Link the layer list to the pen tool bar
graphic->addLayerListListener(penToolBar);
// Link the layer list to the layer widget
graphic->addLayerListListener(layerWidget);
// Link the block list to the block widget
graphic->addBlockListListener(blockWidget);
// Link the layer list to the pen tool bar
graphic->addLayerListListener(penToolBar);
// Link the layer list to the layer widget
graphic->addLayerListListener(layerWidget);
// Link the block list to the block widget
graphic->addBlockListListener(blockWidget);