First commit

Homework 8/src/gui/CategoryField.java

@@ -0,0 +1,72 @@
+package gui;
+
+import java.awt.FlowLayout;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.swing.BorderFactory;
+import javax.swing.JPanel;
+
+import grading.CompositeGrade;
+import grading.Grade;
+import grading.LeafGrade;
+
+/**
+ * A grouping of LeafGradeFields for a specific category of grades.
+ */
+public class CategoryField extends JPanel
+{
+  private static final long serialVersionUID = 1L;
+  private List<LeafGradeField> fields;
+  private CompositeGrade template;
+
+  /**
+   * @param template The CompositeGrade to use as a default key and value.
+   */
+  public CategoryField(final CompositeGrade template)
+  {
+    this.template = template;
+    this.fields = new ArrayList<LeafGradeField>();
+    setLayout(new FlowLayout(FlowLayout.LEFT));
+    setBorder(BorderFactory.createTitledBorder(template.getKey()));
+
+    for (Grade grade : template.getComponents())
+    {
+      if (grade instanceof LeafGrade)
+      {
+        LeafGradeField field = new LeafGradeField((LeafGrade) grade);
+        fields.add(field);
+        add(field);
+      }
+    }
+  }
+
+  /**
+   * @return A new Grade object representing the composite grade of all fields in the category.
+   */
+  public Grade getGrade()
+  {
+    CompositeGrade grade = new CompositeGrade(getKey());
+    grade.setFilter(template.getFilter());
+    grade.setStrategy(template.getStrategy());
+    fields.forEach((field) -> grade.add(field.getGrade()));
+
+    return grade;
+  }
+
+  /**
+   * @return The key for this category
+   */
+  public String getKey()
+  {
+    return template.getKey();
+  }
+
+  /**
+   * Clears any text from all grades in this category.
+   */
+  public void reset()
+  {
+    fields.forEach((field) -> field.reset());
+  }
+}