Better-written LUT panels

2 files changed, 129 insertions, 23 deletions

diff --git a/grapher/Models/Options/AccelTypeOptions.cs b/grapher/Models/Options/AccelTypeOptions.cs
index cc2480c..08ab111 100644
--- a/grapher/Models/Options/AccelTypeOptions.cs
+++ b/grapher/Models/Options/AccelTypeOptions.cs
@@ -40,6 +40,7 @@ namespace grapher
             Option midpoint,
             TextOption lutText,
             LUTPanelOptions lutPanelOptions,
+            LutApplyOptions lutApplyOptions,
             Button writeButton,
             ActiveValueLabel accelTypeActiveValue)
         {
@@ -73,6 +74,7 @@ namespace grapher
             AccelTypeActiveValue = accelTypeActiveValue;
             LutText = lutText;
             LutPanel = lutPanelOptions;
+            LutApply = lutApplyOptions;
 
             AccelTypeActiveValue.Left = AccelDropdown.Left + AccelDropdown.Width;
             AccelTypeActiveValue.Height = AccelDropdown.Height;
@@ -237,6 +239,7 @@ namespace grapher
             Limit.SetActiveValue(args.limit);
             Exponent.SetActiveValue(args.exponent);
             Midpoint.SetActiveValue(args.midpoint);
+            LutPanel.SetActiveValues(args.tableData.points);
             LutApply.SetActiveValue(args.tableData.velocity);
         }
 
diff --git a/grapher/Models/Options/LUT/LUTPanelOptions.cs b/grapher/Models/Options/LUT/LUTPanelOptions.cs
index e723dcd..6425d91 100644
--- a/grapher/Models/Options/LUT/LUTPanelOptions.cs
+++ b/grapher/Models/Options/LUT/LUTPanelOptions.cs
@@ -10,39 +10,33 @@ namespace grapher.Models.Options.LUT
 {
     public class LUTPanelOptions : OptionBase
     {
-        public const string ApplyAsSensTitle = "Apply as sensitivity";
-        public const string ApplyAsVelocityTitle = "Apply as velocity";
-        public const int TitlePadding = 5;
+        public const int PanelPadding = 5;
         public const int PanelHeight = 100;
 
-        public LUTPanelOptions(Panel activePanel)
+        public LUTPanelOptions(Panel activePanel, RichTextBox pointsTextBox)
         {
+            PointsTextBox = pointsTextBox;
+
             ActivePanel = activePanel;
             ActivePanel.Height = PanelHeight;
             ActivePanel.Paint += Panel_Paint;
 
-            ApplyAsSens = new CheckBox();
-            ApplyAsSens.Text = ApplyAsSensTitle;
-            ApplyAsVelocity = new CheckBox();
-            ApplyAsVelocity.Text = ApplyAsVelocityTitle;
-        }
-
-        public Panel ActivePanel
-        {
-            get;
+            ActiveValuesTextBox = new RichTextBox();
+            ActiveValuesTextBox.ReadOnly = true;
+            ActivePanel.Controls.Add(ActiveValuesTextBox);
         }
 
-        public Label Title
+        public RichTextBox PointsTextBox
         {
             get;
         }
 
-        public CheckBox ApplyAsSens
+        public RichTextBox ActiveValuesTextBox
         {
             get;
         }
 
-        public CheckBox ApplyAsVelocity
+        public Panel ActivePanel
         {
             get;
         }
@@ -51,7 +45,7 @@ namespace grapher.Models.Options.LUT
         {
             get
             {
-                return ActivePanel.Visible || ShouldShow;
+                return PointsTextBox.Visible || ShouldShow;
             }
         }
 
@@ -59,10 +53,11 @@ namespace grapher.Models.Options.LUT
         {
             get
             {
-                return ActivePanel.Top;
+                return PointsTextBox.Top;
             }
             set
             {
+                PointsTextBox.Top = value;
                 ActivePanel.Top = value;
             }
         }
@@ -71,7 +66,7 @@ namespace grapher.Models.Options.LUT
         {
             get
             {
-                return ActivePanel.Height;
+                return PointsTextBox.Height;
             }
         }
 
@@ -79,11 +74,12 @@ namespace grapher.Models.Options.LUT
         {
             get
             {
-                return ActivePanel.Left;
+                return PointsTextBox.Left;
             }
             set
             {
-                ActivePanel.Left = value;
+                PointsTextBox.Left = value;
+                AlignActivePanelToPointsTextBox();
             }
         }
 
@@ -91,11 +87,14 @@ namespace grapher.Models.Options.LUT
         {
             get
             {
-                return ActivePanel.Width;
+                return PointsTextBox.Width;
             }
             set
             {
-                ActivePanel.Width = value;
+                var panelWidth = value / 2 - PanelPadding;
+                PointsTextBox.Width = panelWidth;
+                ActivePanel.Width = panelWidth;
+                AlignActivePanelToPointsTextBox();
             }
         }
 
@@ -103,12 +102,14 @@ namespace grapher.Models.Options.LUT
 
         public override void Hide()
         {
+            PointsTextBox.Hide();
             ActivePanel.Hide();
             ShouldShow = false;
         }
 
         public override void Show(string name)
         {
+            PointsTextBox.Show();
             ActivePanel.Show();
             ShouldShow = true;
         }
@@ -118,6 +119,108 @@ namespace grapher.Models.Options.LUT
             // Nothing to do here.
         }
 
+        public void SetActiveValues(IEnumerable<Vec2<float>> activePoints)
+        {
+            if (activePoints.Any() && activePoints.First().x != 0)
+            {
+                ActiveValuesTextBox.Text = PointsToActiveValuesText(activePoints);
+            }
+            else
+            {
+                ActiveValuesTextBox.Text = string.Empty;
+            }
+        }
+
+        public Vec2<float>[] GetPoints()
+        {
+            return UserTextToPoints(PointsTextBox.Text);
+        }
+
+        private static Vec2<float>[] UserTextToPoints(string userText)
+        {
+            if (string.IsNullOrWhiteSpace(userText))
+            {
+                throw new Exception("Text must be entered in text box to fill Look Up Table.");
+            }
+
+            Vec2<float>[] points = new Vec2<float>[256];
+
+            var userTextSplit = userText.Split(';');
+            int index = 0;
+            float lastX = 0;
+
+            foreach(var pointEntry in userTextSplit)
+            {
+                var pointSplit = pointEntry.Trim().Split(',');
+
+                if (pointSplit.Length != 2)
+                {
+                    throw new Exception($"Point at index {index} is malformed. Expected format: x,y; Given: {pointEntry.Trim()}");
+                }
+
+                float x;
+                float y;
+
+                try
+                {
+                    x = float.Parse(pointSplit[0]);
+                }
+                catch (Exception ex)
+                {
+                    throw new Exception($"X-value for point at index {index} is malformed. Expected: float. Given: {pointSplit[0]}", ex);
+                }
+
+                if (x <= 0)
+                {
+                    throw new Exception($"X-value for point at index {index} is less than or equal to 0. Point (0,0) is implied and should not be specified in points text.");
+                }
+
+                if (x <= lastX)
+                {
+                    throw new Exception($"X-value for point at index {index} is less than or equal to previous x-value. Value: {x} Previous: {lastX}");
+                }
+
+                lastX = x;
+
+                try
+                {
+                    y = float.Parse(pointSplit[1]);
+                }
+                catch (Exception ex)
+                {
+                    throw new Exception($"Y-value for point at index {index} is malformed. Expected: float. Given: {pointSplit[1]}", ex);
+                }
+
+                if (y <= 0)
+                {
+                    throw new Exception($"Y-value for point at index {index} is less than or equal to 0. Value: {y}");
+                }
+
+                points[index] = new Vec2<float> { x = x, y = y };
+
+                index++;
+            }
+
+            return points;
+        }
+
+        private void AlignActivePanelToPointsTextBox()
+        {
+            ActivePanel.Left = PointsTextBox.Right + PanelPadding;
+        }
+
+        private string PointsToActiveValuesText(IEnumerable<Vec2<float>> points)
+        {
+            StringBuilder builder = new StringBuilder();
+
+            foreach(var point in points)
+            {
+                builder.AppendLine($"{point.x},{point.y};");
+            }
+
+            return builder.ToString();
+        }
+
         private void Panel_Paint(object sender, PaintEventArgs e)
         {
             Color col = Color.DarkGray;