Displaying the Tree
Before we dive into the code, let's take a close look at what exactly happens. Once you know exactly what the code does, it will make more sense to look at the code and see how it happens.
It's helpful to look at all of the images used in FolderTree. Figure 21-1 shows all of these images and their names.
Figure 21-1. All FolderTree images
Once we get into the code, you'll be referring to this figure, I promise. Everything in the Folder Tree is made of these images and plain text. That's it.
Every folder and every link has its own layer in folderTree. For example, the Europe folder is in its own layer, ...