From dd0680fe8c0948f422bc1514835879794f588b22 Mon Sep 17 00:00:00 2001
From: Dale Fugier <dale@mcneel.com>
Date: Tue, 20 Feb 2024 10:41:45 -0800
Subject: [PATCH] Add cmdSampleEnableGrips.cpp

---
 cpp/SampleCommands/SampleCommands.vcxproj     |  1 +
 .../SampleCommands.vcxproj.filters            |  3 +
 cpp/SampleCommands/cmdSampleEnableGrips.cpp   | 98 +++++++++++++++++++
 3 files changed, 102 insertions(+)
 create mode 100644 cpp/SampleCommands/cmdSampleEnableGrips.cpp

diff --git a/cpp/SampleCommands/SampleCommands.vcxproj b/cpp/SampleCommands/SampleCommands.vcxproj
index 3f41234b..4903e18f 100644
--- a/cpp/SampleCommands/SampleCommands.vcxproj
+++ b/cpp/SampleCommands/SampleCommands.vcxproj
@@ -21,6 +21,7 @@
     <ClCompile Include="cmdSampleDrawZebraPreview.cpp" />
     <ClCompile Include="cmdSampleDump3dmMaterialTextures.cpp" />
     <ClCompile Include="cmdSampleDupEdge.cpp" />
+    <ClCompile Include="cmdSampleEnableGrips.cpp" />
     <ClCompile Include="cmdSampleFrameRails.cpp" />
     <ClCompile Include="cmdSampleGetMultipleSpecial.cpp" />
     <ClCompile Include="cmdSampleGrid.cpp" />
diff --git a/cpp/SampleCommands/SampleCommands.vcxproj.filters b/cpp/SampleCommands/SampleCommands.vcxproj.filters
index 1c424f84..fdf868d4 100644
--- a/cpp/SampleCommands/SampleCommands.vcxproj.filters
+++ b/cpp/SampleCommands/SampleCommands.vcxproj.filters
@@ -846,6 +846,9 @@
     <ClCompile Include="cmdSampleDeleteFaces.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="cmdSampleEnableGrips.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="SampleCommandsApp.h">
diff --git a/cpp/SampleCommands/cmdSampleEnableGrips.cpp b/cpp/SampleCommands/cmdSampleEnableGrips.cpp
new file mode 100644
index 00000000..40adca43
--- /dev/null
+++ b/cpp/SampleCommands/cmdSampleEnableGrips.cpp
@@ -0,0 +1,98 @@
+#include "stdafx.h"
+
+////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////
+//
+// BEGIN SampleEnableGrips command
+//
+
+#pragma region SampleEnableGrips command
+
+class CCommandSampleEnableGrips : public CRhinoCommand
+{
+public:
+  CCommandSampleEnableGrips();
+  UUID CommandUUID() override
+  {
+    // {B8A7E946-AE2C-4AFE-A24A-3E32186B206E}
+    static const GUID SampleEnableGripsCommand_UUID =
+    { 0xB8A7E946, 0xAE2C, 0x4AFE, { 0xA2, 0x4A, 0x3E, 0x32, 0x18, 0x6B, 0x20, 0x6E } };
+    return SampleEnableGripsCommand_UUID;
+  }
+  const wchar_t* EnglishCommandName() override { return L"SampleEnableGrips"; }
+  CRhinoCommand::result RunCommand(const CRhinoCommandContext& context) override;
+};
+
+// The one and only CCommandSampleEnableGrips object
+static class CCommandSampleEnableGrips theSampleEnableGripsCommand;
+
+CCommandSampleEnableGrips::CCommandSampleEnableGrips()
+{
+  EnableUndo(false);
+}
+
+CRhinoCommand::result CCommandSampleEnableGrips::RunCommand(const CRhinoCommandContext& context)
+{
+  CRhinoGetObject go;
+  go.SetCommandPrompt(L"Select objects for grip display");
+  go.EnableSubObjectSelect(false);
+  go.EnableGroupSelect();
+  go.GetObjects(1, 0);
+  if (go.CommandResult() != CRhinoCommand::success)
+    return go.CommandResult();
+
+  const int object_count = go.ObjectCount();
+  for (int i = 0; i < object_count; i++)
+  {
+    CRhinoObject* pObject = const_cast<CRhinoObject*>(go.Object(i).Object());
+    if (pObject)
+    {
+      pObject->EnableGrips(true);
+      if (nullptr == pObject->m_grips)
+      {
+        const CRhinoBrepObject* pBrepObject = CRhinoBrepObject::Cast(pObject);
+        if (pBrepObject)
+        {
+          const ON_Brep* pBrep = pBrepObject->Brep();
+          if (pBrep && pBrep->m_F.Count() > 1)
+            RhinoApp().Print(L"Cannot turn on grips for polysurfaces.\n");
+        }
+        else
+        {
+          const CRhinoMeshObject* pMeshObject = CRhinoMeshObject::Cast(pObject);
+          if (pMeshObject)
+          {
+            const ON_Mesh* pMesh = pMeshObject->Mesh();
+            if (pMesh && pMesh->m_V.Count() > 0)
+              RhinoApp().Print(L"Cannot turn on grips for meshes that have more than one million vertices.\n");
+          }
+          else
+          {
+            const CRhinoPointCloudObject* pPointCloudObject = CRhinoPointCloudObject::Cast(pObject);
+            if (pPointCloudObject)
+            {
+              if (pPointCloudObject->PointCloud().PointCount() > 0)
+                RhinoApp().Print(L"Cannot turn on grips for point clouds that have more than one million vertices.\n");
+            }
+          }
+        }
+      }
+      else
+      {
+        pObject->Select(false);
+      }
+    }
+  }
+
+  context.m_doc.Redraw();
+
+  return CRhinoCommand::success;
+}
+
+#pragma endregion
+
+//
+// END SampleEnableGrips command
+//
+////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////