Class Graph2DClipboard provides our application with convenient clipboard support. Namely, this means support for Cut, Copy, and Paste actions for graph elements.

The code in Example 1.1, “Setting up clipboard support” presents the general setup that we will need in an application to make use of the services of Graph2DClipboard. You can observe this code also in the Clipboard1 application.

public Graph2DClipboard getClipboardSupport() {
  if (clipboard == null) {
    clipboard = new Graph2DClipboard(view);
  }
  return clipboard;
}

Example 1.2, “Adding clipboard actions to a tool bar” shows how we can add the default clipboard actions for Cut, Copy, and Paste provided by class Graph2DClipboard to the toolbar of an application.

// Adding clipboard actions (Cut, Copy, Paste) to the tool bar.
toolbar.add(getClipboardSupport().getCutAction());
toolbar.add(getClipboardSupport().getCopyAction());
toolbar.add(getClipboardSupport().getPasteAction());