Refactored ThemeComponentBuilder into ThemeComponentCollection

Filtration.ObjectModel/ThemeEditor/ThemeComponentCollection.cs

@@ -0,0 +1,32 @@
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Windows.Media;
+using Filtration.ObjectModel.Enums;
+
+namespace Filtration.ObjectModel.ThemeEditor
+{
+    public class ThemeComponentCollection : Collection<ThemeComponent>
+    {
+        public bool IsMasterCollection { get; set; }
+
+        public ThemeComponent AddComponent(ThemeComponentType componentType, string componentName, Color componentColor)
+        {
+            if (ComponentExists(componentType, componentName))
+            {
+                return Items.FirstOrDefault(t => t.ComponentName == componentName && t.ComponentType == componentType);
+            }
+
+            var component = new ThemeComponent(componentType, componentName, componentColor);
+            Items.Add(component);
+
+            return component;
+        }
+
+        private bool ComponentExists(ThemeComponentType componentType, string componentName)
+        {
+            var componentCount =
+                Items.Count(c => c.ComponentName == componentName && c.ComponentType == componentType);
+            return componentCount > 0;
+        }
+    }
+}