GSAGH-561 contour legend in rhino is cropped

GsaGH/Components/6_Display/ContourNodeResults.cs

@@ -9,7 +9,6 @@
 
 using GH_IO.Serialization;
 
-using Grasshopper.GUI;
 using Grasshopper.GUI.Gradient;
 using Grasshopper.Kernel;
 using Grasshopper.Kernel.Data;
@@ -38,7 +37,6 @@
 using OasysUnits;
 using OasysUnits.Units;
 
-using Rhino.Display;
 using Rhino.Geometry;
 
 using AngleUnit = OasysUnits.Units.AngleUnit;
@@ -112,25 +110,22 @@ private enum FoldMode {
       "SpringForce",
       "Footfall",
     });
+    private readonly ContourLegendManager _contourLegendManager = ContourLegendManager.GetDefault();
     private string _case = string.Empty;
     private double _defScale = 250;
     private DisplayValue _disp = DisplayValue.ResXyz;
     private ForceUnit _forceUnit = DefaultUnits.ForceUnit;
-    private Bitmap _legend = new Bitmap(15, 120);
-    private double _legendScale = 1;
-    private List<string> _legendValues;
-    private List<int> _legendValuesPosY;
     private LengthUnit _lengthResultUnit = DefaultUnits.LengthUnitResult;
     private double _maxValue = 1000;
     private double _minValue;
     private FoldMode _mode = FoldMode.Displacement;
     private MomentUnit _momentUnit = DefaultUnits.MomentUnit;
     private int _noDigits;
     private string _resType;
-    private string _scaleLegendTxt = string.Empty;
-    private bool _showLegend = true;
     private bool _slider = true;
     private EnvelopeMethod _envelopeType = EnvelopeMethod.Absolute;
+    private List<(int startY, int endY, Color gradientColor)> _gradients
+      = new List<(int startY, int endY, Color gradientColor)>();
 
     public ContourNodeResults() : base("Contour Node Results", "NodeContour",
       "Diplays GSA Node Results as Contours", CategoryName.Name(), SubCategoryName.Cat6()) { }
@@ -140,32 +135,14 @@ public override void CreateAttributes() {
         InitialiseDropdowns();
       }
 
-      m_attributes = new DropDownSliderComponentAttributes(this, SetSelected, _dropDownItems,
-        _selectedItems, _slider, SetVal, SetMaxMin, _defScale, _maxValue, _minValue, _noDigits,
-        _spacerDescriptions);
+      m_attributes = new DropDownSliderComponentAttributes(this, SetSelected, _dropDownItems, _selectedItems, _slider,
+        SetVal, SetMaxMin, _defScale, _maxValue, _minValue, _noDigits, _spacerDescriptions);
     }
 
     public override void DrawViewportWires(IGH_PreviewArgs args) {
       base.DrawViewportWires(args);
-      if (!((_legendValues != null) & _showLegend)) {
-        return;
-      }
-
-      int defaultTextHeight = 12;
-      args.Display.DrawBitmap(new DisplayBitmap(_legend),
-        args.Viewport.Bounds.Right - (int)(110 * _legendScale), (int)(20 * _legendScale));
-      for (int i = 0; i < _legendValues.Count; i++) {
-        args.Display.Draw2dText(_legendValues[i], Color.Black,
-          new Point2d(args.Viewport.Bounds.Right - (int)(85 * _legendScale), _legendValuesPosY[i]),
-          false, (int)(defaultTextHeight * _legendScale));
-      }
 
-      args.Display.Draw2dText(_resType, Color.Black,
-        new Point2d(args.Viewport.Bounds.Right - (int)(110 * _legendScale),
-          (int)(7 * _legendScale)), false, (int)(defaultTextHeight * _legendScale));
-      args.Display.Draw2dText(_case, Color.Black,
-        new Point2d(args.Viewport.Bounds.Right - (int)(110 * _legendScale),
-          (int)(145 * _legendScale)), false, (int)(defaultTextHeight * _legendScale));
+      _contourLegendManager.Legend.DrawLegendRectangle(args, _resType, _case, _gradients);
     }
 
     public override bool Read(GH_IReader reader) {
@@ -176,20 +153,17 @@ public override bool Read(GH_IReader reader) {
       _maxValue = reader.GetDouble("valMax");
       _minValue = reader.GetDouble("valMin");
       _defScale = reader.GetDouble("val");
-      if (reader.ItemExists("legendScale")) {
-        _legendScale = reader.GetDouble("legendScale");
-      }
 
       if (reader.ItemExists("envelope")) {
-        _envelopeType = (EnvelopeMethod)Enum.Parse(
-          typeof(EnvelopeMethod), reader.GetString("envelope"));
+        _envelopeType = (EnvelopeMethod)Enum.Parse(typeof(EnvelopeMethod), reader.GetString("envelope"));
       }
 
-      _showLegend = reader.GetBoolean("legend");
       _lengthResultUnit = (LengthUnit)UnitsHelper.Parse(typeof(LengthUnit), reader.GetString("length"));
       _forceUnit = (ForceUnit)UnitsHelper.Parse(typeof(ForceUnit), reader.GetString("force"));
       _momentUnit = (MomentUnit)UnitsHelper.Parse(typeof(MomentUnit), reader.GetString("moment"));
-      _legend = new Bitmap((int)(15 * _legendScale), (int)(120 * _legendScale));
+
+      _contourLegendManager.DeserialiseLegendState(reader);
+
       return base.Read(reader);
     }
 
@@ -309,12 +283,13 @@ public override bool Write(GH_IWriter writer) {
       writer.SetDouble("valMax", _maxValue);
       writer.SetDouble("valMin", _minValue);
       writer.SetDouble("val", _defScale);
-      writer.SetDouble("legendScale", _legendScale);
-      writer.SetBoolean("legend", _showLegend);
       writer.SetString("length", Length.GetAbbreviation(_lengthResultUnit));
       writer.SetString("force", Force.GetAbbreviation(_forceUnit));
       writer.SetString("moment", Moment.GetAbbreviation(_momentUnit));
       writer.SetString("envelope", _envelopeType.ToString());
+
+      _contourLegendManager.SerialiseLegendState(writer);
+
       return base.Write(writer);
     }
 
@@ -328,19 +303,18 @@ protected override void AppendAdditionalComponentMenuItems(ToolStripDropDown men
       ToolStripMenuItem envelopeMenu = GenerateToolStripMenuItem.GetEnvelopeSubMenuItem(_envelopeType, UpdateEnvelope);
       menu.Items.Add(envelopeMenu);
 
-      Menu_AppendItem(menu, "Show Legend", ShowLegend, true, _showLegend);
+      Menu_AppendItem(menu, "Show Legend", ShowLegend, true, _contourLegendManager.Configuration.IsVisible);
 
       var gradient = new GH_GradientControl();
       gradient.CreateAttributes();
-      var extract = new ToolStripMenuItem("Extract Default Gradient", gradient.Icon_24x24,
-        (s, e) => CreateGradient());
+      var extract = new ToolStripMenuItem("Extract Default Gradient", gradient.Icon_24x24, (s, e) => CreateGradient());
       menu.Items.Add(extract);
 
       ToolStripMenuItem lengthUnitsMenu = GenerateToolStripMenuItem.GetSubMenuItem("Displacement",
         EngineeringUnits.Length, Length.GetAbbreviation(_lengthResultUnit), UpdateLength);
 
-      ToolStripMenuItem forceUnitsMenu = GenerateToolStripMenuItem.GetSubMenuItem("Force",
-        EngineeringUnits.Force, Force.GetAbbreviation(_forceUnit), UpdateForce);
+      ToolStripMenuItem forceUnitsMenu = GenerateToolStripMenuItem.GetSubMenuItem("Force", EngineeringUnits.Force,
+        Force.GetAbbreviation(_forceUnit), UpdateForce);
 
       ToolStripMenuItem momentUnitsMenu = GenerateToolStripMenuItem.GetSubMenuItem("Moment",
         EngineeringUnits.Moment, Moment.GetAbbreviation(_momentUnit), UpdateMoment);
@@ -357,21 +331,7 @@ protected override void AppendAdditionalComponentMenuItems(ToolStripDropDown men
 
       menu.Items.Add(unitsMenu);
 
-      var legendScale = new ToolStripTextBox {
-        Text = _legendScale.ToString(),
-      };
-      legendScale.TextChanged += (s, e) => MaintainScaleLegendText(legendScale);
-      var legendScaleMenu = new ToolStripMenuItem("Scale Legend") {
-        Enabled = true,
-        ImageScaling = ToolStripItemImageScaling.SizeToFit,
-      };
-      var menu2 = new GH_MenuCustomControl(legendScaleMenu.DropDown, legendScale.Control, true,
-        200);
-      legendScaleMenu.DropDownItems[1].MouseUp += (s, e) => {
-        UpdateLegendScale();
-        (this as IGH_VariableParameterComponent).VariableParameterMaintenance();
-        ExpireSolution(true);
-      };
+      ToolStripMenuItem legendScaleMenu = _contourLegendManager.CreateMenu(this, () => base.UpdateUI());
       menu.Items.Add(legendScaleMenu);
 
       Menu_AppendSeparator(menu);
@@ -436,21 +396,20 @@ protected override void RegisterOutputParams(GH_OutputParamManager pManager) {
       IQuantity length = new Length(0, _lengthResultUnit);
       string lengthunitAbbreviation = string.Concat(length.ToString().Where(char.IsLetter));
 
-      pManager.AddGenericParameter("Result Point", "P", "Contoured Points with result values",
-        GH_ParamAccess.list);
+      pManager.AddGenericParameter("Result Point", "P", "Contoured Points with result values", GH_ParamAccess.list);
       pManager.AddGenericParameter("Colours", "LC", "Legend Colours", GH_ParamAccess.list);
       pManager.AddGenericParameter("Values [" + lengthunitAbbreviation + "]", "LT", "Legend Values",
         GH_ParamAccess.list);
     }
 
     protected override void SolveInternal(IGH_DataAccess da) {
-      GsaResult result;
+      _gradients = new List<(int startY, int endY, Color gradientColor)>();
       string nodeList = "All";
       _case = string.Empty;
       _resType = string.Empty;
       var ghTyp = new GH_ObjectWrapper();
       da.GetData(0, ref ghTyp);
-      result = Inputs.GetResultInput(this, ghTyp);
+      GsaResult result = Inputs.GetResultInput(this, ghTyp);
       if (result == null) {
         return;
       }
@@ -805,10 +764,9 @@ IEntity0dResultSubset<IReactionForce, ResultVector6<Entity0dExtremaKey>> springF
         pts[kvp.Key] = new PointResultGoo(pt, t, valcol, size, kvp.Key);
       });
 
-
-      int gripheight = _legend.Height / ghGradient.GripCount;
-      _legendValues = new List<string>();
-      _legendValuesPosY = new List<int>();
+      int gripheight = _contourLegendManager.Configuration.ActualHeight / ghGradient.GripCount;
+      var legendValues = new List<string>();
+      var _legendValuePositionsY = new List<int>();
 
       var ts = new List<GH_UnitNumber>();
       var cs = new List<Color>();
@@ -829,54 +787,51 @@ Color gradientcolour
 
         int starty = i * gripheight;
         int endy = starty + gripheight;
-        for (int y = starty; y < endy; y++) {
-          for (int x = 0; x < _legend.Width; x++) {
-            _legend.SetPixel(x, _legend.Height - y - 1, gradientcolour);
-          }
-        }
+        _gradients.Add((starty, endy, gradientcolour));
 
         switch (_mode) {
           case FoldMode.Displacement when (int)_disp < 4:
             var displacement = new Length(t, _lengthResultUnit);
-            _legendValues.Add(displacement.ToString("f" + significantDigits));
+            legendValues.Add(displacement.ToString("f" + significantDigits));
             ts.Add(new GH_UnitNumber(displacement));
             break;
 
           case FoldMode.Displacement:
             var rotation = new Angle(t, AngleUnit.Radian);
-            _legendValues.Add(rotation.ToString("s" + significantDigits));
+            legendValues.Add(rotation.ToString("s" + significantDigits));
             ts.Add(new GH_UnitNumber(rotation));
             break;
 
           case FoldMode.Reaction when (int)_disp < 4:
           case FoldMode.SpringForce when (int)_disp < 4:
             var reactionForce = new Force(t, _forceUnit);
-            _legendValues.Add(reactionForce.ToString("s" + significantDigits));
+            legendValues.Add(reactionForce.ToString("s" + significantDigits));
             ts.Add(new GH_UnitNumber(reactionForce));
             break;
 
           case FoldMode.Reaction:
           case FoldMode.SpringForce:
             var reactionMoment = new Moment(t, _momentUnit);
-            _legendValues.Add(reactionMoment.ToString("s" + significantDigits));
+            legendValues.Add(reactionMoment.ToString("s" + significantDigits));
             ts.Add(new GH_UnitNumber(reactionMoment));
             break;
 
           case FoldMode.Footfall:
             var responseFactor = new Ratio(t, RatioUnit.DecimalFraction);
-            _legendValues.Add(responseFactor.ToString("s" + significantDigits));
+            legendValues.Add(responseFactor.ToString("s" + significantDigits));
             ts.Add(new GH_UnitNumber(responseFactor));
             break;
         }
 
         if (Math.Abs(t) > 1) {
-          _legendValues[i] = _legendValues[i]
-           .Replace(",", string.Empty); // remove thousand separator
+          legendValues[i] = legendValues[i].Replace(",", string.Empty); // remove thousand separator
         }
 
-        _legendValuesPosY.Add(_legend.Height - starty + (gripheight / 2) - 2);
+        _legendValuePositionsY.Add(_contourLegendManager.Configuration.ActualHeight - starty + (gripheight / 2) - 2);
       }
 
+      _contourLegendManager.Configuration.SetTextValues(legendValues).SetValuePositionsY(_legendValuePositionsY);
+
       da.SetDataList(0, pts.OrderBy(x => x.Key).Select(y => y.Value).ToList());
       da.SetDataList(1, cs);
       da.SetDataList(2, ts);
@@ -903,8 +858,7 @@ internal GH_GradientControl CreateGradient(GH_Document doc = null) {
         1,
       });
 
-      gradient.Attributes.Pivot = new PointF(
-        Attributes.Bounds.X - gradient.Attributes.Bounds.Width - 50,
+      gradient.Attributes.Pivot = new PointF(Attributes.Bounds.X - gradient.Attributes.Bounds.Width - 50,
         Params.Input[2].Attributes.Bounds.Y - (gradient.Attributes.Bounds.Height / 4) - 6);
 
       doc.AddObject(gradient, false);
@@ -956,7 +910,7 @@ private void ReDrawComponent() {
     }
 
     internal void ShowLegend(object sender, EventArgs e) {
-      _showLegend = !_showLegend;
+      _contourLegendManager.Configuration.ToggleLegendVisibility();
       ExpirePreview(true);
     }
 
@@ -983,22 +937,5 @@ internal void UpdateMoment(string unit) {
       ExpirePreview(true);
       base.UpdateUI();
     }
-
-    internal void UpdateLegendScale() {
-      try {
-        _legendScale = double.Parse(_scaleLegendTxt);
-      } catch (Exception e) {
-        this.AddRuntimeWarning(e.Message);
-        return;
-      }
-
-      _legend = new Bitmap((int)(15 * _legendScale), (int)(120 * _legendScale));
-      ExpirePreview(true);
-      base.UpdateUI();
-    }
-
-    internal void MaintainScaleLegendText(ToolStripItem menuitem) {
-      _scaleLegendTxt = menuitem.Text;
-    }
   }
 }