CSC212 Lab 15 2014

--D. Thiebaut (talk) 09:43, 27 November 2014 (EST)

---

This lab introduces the Model-View-Controller (MVC) system for implementing Graphical User Interfaces (GUI). Please review the slides from the MVC lecture notes if necessary.

First Contact

• Create a new project, or add new files to an existing project. You will need to import core.jar from the Processing 2 app into your project, and then add it to the build path.
• You need to create 3 different classes, one for the controller, one for the viewer, and one for the model.

• MVC1_controller.java
• MVC1_viewer.java
• MVC1_model.java

• This tutorial contains the code for all three classes. Copy/paste the code into your three classes.

Run

• The starting class is the viewer. It's the applet class.
• Run it. Play with the applet to understand how it works.

Explore the Code

• Read the code for the model. Notice that it contains the bare definition of a graph, its vertices, and its edges, and not much else. That's what a model should contain.
• Look at the main public methods. They are few. They mostly allow one to

• initialize a graph, if we want one already made.
• add an edge
• get the dimension of the grid
• get the adjacency list of a vertex

• Change the probability100 variable; it controls the probability of creating an edge between a vertex and its neighbors. The lower the value, the less connected the graph is. The closest to 100, the more fully interconnected the vertices get. Run the applet again.