set invisible args to default values before write

5 files changed, 22 insertions, 20 deletions

diff --git a/grapher/Models/AccelGUI.cs b/grapher/Models/AccelGUI.cs
index 15a0c0e..11685ee 100644
--- a/grapher/Models/AccelGUI.cs
+++ b/grapher/Models/AccelGUI.cs
@@ -84,7 +84,7 @@ namespace grapher
                 },
                 combineMagnitudes = ApplyOptions.IsWhole,
                 modes = ApplyOptions.GetModes(),
-                args = ApplyOptions.GetUpdatedArgs(ref driverSettings.args),
+                args = ApplyOptions.GetArgs(),
                 minimumTime = driverSettings.minimumTime
             };
 
diff --git a/grapher/Models/Options/AccelOptionSet.cs b/grapher/Models/Options/AccelOptionSet.cs
index 53c39af..11a7f10 100644
--- a/grapher/Models/Options/AccelOptionSet.cs
+++ b/grapher/Models/Options/AccelOptionSet.cs
@@ -98,14 +98,14 @@ namespace grapher.Models.Options
             Options.Top = TopAnchor;
         }
 
-        public void SetArgs(ref AccelArgs args, ref /*readonly*/ AccelArgs last)
+        public void SetArgs(ref AccelArgs args)
         {
-            Options.SetArgs(ref args, ref last);
+            Options.SetArgs(ref args);
         }
 
-        public AccelArgs GenerateArgs(ref /*readonly*/ AccelArgs last)
+        public AccelArgs GenerateArgs()
         {
-            return Options.GenerateArgs(ref last);
+            return Options.GenerateArgs();
         }
 
         public void SetActiveValues(int mode, AccelArgs args)
diff --git a/grapher/Models/Options/AccelTypeOptions.cs b/grapher/Models/Options/AccelTypeOptions.cs
index 9a4ab7c..f9ecac1 100644
--- a/grapher/Models/Options/AccelTypeOptions.cs
+++ b/grapher/Models/Options/AccelTypeOptions.cs
@@ -225,24 +225,25 @@ namespace grapher
             Width = Acceleration.Field.Width;
         }
 
-        public void SetArgs(ref AccelArgs args, ref /*readonly*/ AccelArgs last)
+        public void SetArgs(ref AccelArgs args)
         {
-            args.acceleration = Acceleration.Visible ? Acceleration.Field.Data : last.acceleration;
-            args.scale = Scale.Visible ? Scale.Field.Data : last.scale;
-            args.gainCap = Cap.VelocityGainCap;
-            args.scaleCap = Cap.SensitivityCap;
-            args.limit = Limit.Visible ? Limit.Field.Data : last.limit;
-            args.exponent = Exponent.Visible ? Exponent.Field.Data : last.exponent;
-            args.offset = Offset.Offset;
+            AccelArgs defaults = (AccelArgs)DriverInterop.DefaultArgs;
+            args.acceleration = Acceleration.Visible ? Acceleration.Field.Data : defaults.acceleration;
+            args.scale = Scale.Visible ? Scale.Field.Data : defaults.scale;
+            args.gainCap = Cap.Visible ? Cap.VelocityGainCap : defaults.gainCap;
+            args.scaleCap = Cap.Visible ? Cap.SensitivityCap : defaults.scaleCap;
+            args.limit = Limit.Visible ? Limit.Field.Data : defaults.limit;
+            args.exponent = Exponent.Visible ? Exponent.Field.Data : defaults.exponent;
+            args.offset = Offset.Visible ? Offset.Offset : defaults.offset;
             args.legacyOffset = Offset.IsLegacy;
-            args.midpoint = Midpoint.Visible ? Midpoint.Field.Data : last.midpoint;
-            args.weight = Weight.Visible ? Weight.Field.Data : last.weight;
+            args.midpoint = Midpoint.Visible ? Midpoint.Field.Data : defaults.midpoint;
+            args.weight = Weight.Visible ? Weight.Field.Data : defaults.weight;
         }
 
-        public AccelArgs GenerateArgs(ref /*readonly*/ AccelArgs last)
+        public AccelArgs GenerateArgs()
         {
             AccelArgs args = new AccelArgs();
-            SetArgs(ref args, ref last);
+            SetArgs(ref args);
             return args;
         }
 
diff --git a/grapher/Models/Options/ApplyOptions.cs b/grapher/Models/Options/ApplyOptions.cs
index 51c80ea..c2ed498 100644
--- a/grapher/Models/Options/ApplyOptions.cs
+++ b/grapher/Models/Options/ApplyOptions.cs
@@ -89,14 +89,14 @@ namespace grapher.Models.Options
             };
         }
 
-        public Vec2<AccelArgs> GetUpdatedArgs(ref /*readonly*/ Vec2<AccelArgs> last)
+        public Vec2<AccelArgs> GetArgs()
         {
-            var xArgs = OptionSetX.GenerateArgs(ref last.x);
+            var xArgs = OptionSetX.GenerateArgs();
             
             return new Vec2<AccelArgs>
             {
                 x = xArgs,
-                y = ByComponentVectorXYLock.Checked ? xArgs : OptionSetY.GenerateArgs(ref last.y)
+                y = ByComponentVectorXYLock.Checked ? xArgs : OptionSetY.GenerateArgs()
             };
 
         }
diff --git a/wrapper/wrapper.cpp b/wrapper/wrapper.cpp
index ebc4a2e..c5834d9 100644
--- a/wrapper/wrapper.cpp
+++ b/wrapper/wrapper.cpp
@@ -174,6 +174,7 @@ public:
 public ref struct DriverInterop
 {
     literal double WriteDelayMs = WRITE_DELAY;
+    static initonly AccelArgs^ DefaultArgs = get_default()->args.x;
 
     static DriverSettings^ GetActiveSettings()
     {