Samples - CMake configuration fix (#643)

- Migrates legacy text-based FILES, PACKAGES, and EXTERNLIB configuration files to proper CMake format (.cmake extensions)
- Updates CMakeLists.txt files to use modern CMake practices with explicit configurations and target-specific definitions
- Modifies the qt_macro.cmake to work with the new CMake variable-based file management system

samples/qt/OCCTOverview/code/Sample2D_Markers.cxx

@@ -0,0 +1,80 @@
+// Copyright (c) 2020 OPEN CASCADE SAS
+//
+// This file is part of the examples of the Open CASCADE Technology software library.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
+
+#include "Sample2D_Markers.h"
+
+#include <Aspect_TypeOfMarker.hxx>
+
+// generic marker
+Sample2D_Markers::Sample2D_Markers (const Standard_Real theXPosition,
+                                    const Standard_Real theYPosition,
+                                    const Aspect_TypeOfMarker theMarkerType,
+                                    const Quantity_Color theColor,
+                                    const Standard_Real theScaleOrId)
+: myArrayOfPoints (new Graphic3d_ArrayOfPoints(1))
+{
+  myXPosition = theXPosition;
+  myYPosition = theYPosition;
+  myMarkerType = theMarkerType;
+  myColor = theColor;
+  myIndex = theScaleOrId;
+}
+
+Sample2D_Markers::Sample2D_Markers (const Standard_Real theXPosition,
+                                    const Standard_Real theYPosition,
+                                    const Handle(Graphic3d_ArrayOfPoints)& theArrayOfPoints,
+                                    const Aspect_TypeOfMarker theMarkerType,
+                                    const Quantity_Color theColor,
+                                    const Standard_Real theScaleOrId)
+: myArrayOfPoints (new Graphic3d_ArrayOfPoints(6))
+{
+  myXPosition = theXPosition;
+  myYPosition = theYPosition;
+  myMarkerType = theMarkerType;
+  myColor = theColor;
+  myIndex = theScaleOrId;
+  myArrayOfPoints = theArrayOfPoints;
+}
+
+void Sample2D_Markers::Compute (const Handle(PrsMgr_PresentationManager)& ,
+                                const Handle(Prs3d_Presentation)& thePrs,
+                                const Standard_Integer theMode)
+{
+  if (theMode != 0)
+  {
+    return;
+  }
+
+  if (myMarkerType == Aspect_TOM_USERDEFINED)
+  {
+    Handle(Graphic3d_AspectMarker3d) aMarker = new Graphic3d_AspectMarker3d(Aspect_TOM_POINT, myColor, myIndex);
+    thePrs->CurrentGroup()->SetGroupPrimitivesAspect(aMarker);
+    thePrs->CurrentGroup()->AddPrimitiveArray(myArrayOfPoints);
+  }
+  else
+  {
+    Handle(Graphic3d_AspectMarker3d) aMarker = new Graphic3d_AspectMarker3d(myMarkerType, myColor, myIndex);
+    thePrs->CurrentGroup()->SetPrimitivesAspect(aMarker);
+    Handle(Graphic3d_ArrayOfPoints) anArrayOfPoints = new Graphic3d_ArrayOfPoints(1);
+    anArrayOfPoints->AddVertex(myXPosition, myYPosition, 0);
+    thePrs->CurrentGroup()->AddPrimitiveArray(anArrayOfPoints);
+  }
+}