Cheat Sheet Extensibility - Part 2

Oops.

I forgot to mention one of the little tricks required to make the cheat sheet actually usable - you need to be able to signal it's completion :-)

There are a few things required to make this happen:

1. the task requires a UI control which allows the user to signal that the task is complete. I used a form hyperlink control, similar to the following:

   ImageHyperlink link = toolkit.createImageHyperlink(
   form.getBody(),
   SWT.WRAP);
   Image img = AbstractUIPlugin.imageDescriptorFromPlugin(
   Activator.PLUGIN_ID, "/icons/complete_task.gif").createImage();
   link.setImage(img);
   link.addHyperlinkListener(this);

2. a reference to the task being edited must be obtained. Fortunately, this is made available when the setInput method is called. In this method, use some code like this:

   public void setInput(IEditableTask _task, IMemento memento) {
   task = _task;
   }

3. attach a listener to the control




4. when the link is activated, your listener will be fired. When this happens, the task should be set to complete. This is then just a simple method call using the task instance which has already been saved:

   task.complete();