1 files changed, 129 insertions, 0 deletions
diff --git a/grapher/Models/Options/ComboBoxOptionsBase.cs b/grapher/Models/Options/ComboBoxOptionsBase.cs
new file mode 100644
index 0000000..64e0092
--- /dev/null
+++ b/grapher/Models/Options/ComboBoxOptionsBase.cs
@@ -0,0 +1,129 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace grapher.Models.Options
+{
+    public abstract class ComboBoxOptionsBase : OptionBase
+    {
+        #region Constructors
+
+        public ComboBoxOptionsBase(
+            Label label,
+            ComboBox dropdown,
+            ActiveValueLabel activeValueLabel)
+        {
+            OptionsDropdown = dropdown;
+            OptionsDropdown.Items.Clear();
+
+            Label = label;
+            Label.AutoSize = false;
+            Label.Width = 50;
+
+            ActiveValueLabel = activeValueLabel;
+        }
+
+        #endregion Constructors
+
+        #region Properties
+
+        public Label Label { get; }
+
+        public ActiveValueLabel ActiveValueLabel { get; }
+
+        public ComboBox OptionsDropdown { get; }
+
+        public override bool Visible
+        {
+            get
+            {
+                return Label.Visible || ShouldShow;
+            }
+        }
+
+        public override int Left
+        {
+            get
+            {
+                return Label.Left;
+            }
+            set
+            {
+                Label.Left = value;
+                OptionsDropdown.Left = Label.Left + Label.Width + Constants.OptionVerticalSeperation;
+            }
+        }
+
+        public override int Height
+        {
+            get
+            {
+                return Label.Height;
+            }
+        }
+
+        public override int Top
+        {
+            get
+            {
+                return Label.Top;
+            }
+            set
+            {
+                OptionsDropdown.Top = value;
+                Label.Top = (OptionsDropdown.Height - Label.Height) / 2 + OptionsDropdown.Top;
+                ActiveValueLabel.Top = value;
+            }
+        }
+
+        public override int Width
+        {
+            get
+            {
+                return Label.Width;
+            }
+            set
+            {
+                OptionsDropdown.Width = value - Label.Width - Constants.OptionLabelBoxSeperation;
+            }
+        }
+
+        protected bool ShouldShow { get; set; }
+
+        #endregion Properties
+
+        #region Methods
+
+        public override void Hide()
+        {
+            Label.Hide();
+            OptionsDropdown.Hide();
+            ActiveValueLabel.Hide();
+            ShouldShow = false;
+        }
+
+        public override void Show(string labelText)
+        {
+            Label.Show();
+            
+            if (!string.IsNullOrWhiteSpace(labelText))
+            {
+                Label.Text = labelText;
+            }
+
+            OptionsDropdown.Show();
+            ActiveValueLabel.Show();
+            ShouldShow = true;
+        }
+
+        public override void AlignActiveValues()
+        {
+            ActiveValueLabel.Align();
+        }
+
+        #endregion Methods
+    }
+}