Assembly: Implement Bill Of Materials (#14198)

* Assembly: Implementation of BOM

* Assembly: BOM: make it possible for BOM to be made without an assembly.

src/Mod/Assembly/Gui/ViewProviderBom.cpp

@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/****************************************************************************
+ *                                                                          *
+ *   Copyright (c) 2023 Ondsel <development@ondsel.com>                     *
+ *                                                                          *
+ *   This file is part of FreeCAD.                                          *
+ *                                                                          *
+ *   FreeCAD is free software: you can redistribute it and/or modify it     *
+ *   under the terms of the GNU Lesser General Public License as            *
+ *   published by the Free Software Foundation, either version 2.1 of the   *
+ *   License, or (at your option) any later version.                        *
+ *                                                                          *
+ *   FreeCAD is distributed in the hope that it will be useful, but         *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of             *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU       *
+ *   Lesser General Public License for more details.                        *
+ *                                                                          *
+ *   You should have received a copy of the GNU Lesser General Public       *
+ *   License along with FreeCAD. If not, see                                *
+ *   <https://www.gnu.org/licenses/>.                                       *
+ *                                                                          *
+ ***************************************************************************/
+
+#include "PreCompiled.h"
+
+#ifndef _PreComp_
+#include <vector>
+#endif
+
+#include <App/Document.h>
+#include <App/DocumentObject.h>
+
+#include <Gui/Application.h>
+#include <Gui/BitmapFactory.h>
+
+#include <Base/Interpreter.h>
+
+#include "ViewProviderBom.h"
+
+using namespace AssemblyGui;
+
+PROPERTY_SOURCE(AssemblyGui::ViewProviderBom, SpreadsheetGui::ViewProviderSheet)
+
+ViewProviderBom::ViewProviderBom()
+{}
+
+ViewProviderBom::~ViewProviderBom() = default;
+
+QIcon ViewProviderBom::getIcon() const
+{
+    return Gui::BitmapFactory().pixmap("Assembly_BillOfMaterials.svg");
+}
+
+bool ViewProviderBom::doubleClicked()
+{
+    try {
+        // Ensure the Python interpreter is initialized
+        if (!Py_IsInitialized()) {
+            Py_Initialize();
+        }
+
+        // Acquire the GIL (Global Interpreter Lock)
+        PyGILState_STATE gstate;
+        gstate = PyGILState_Ensure();
+        std::string obj_name = getObject()->getNameInDocument();
+        std::string doc_name = getObject()->getDocument()->getName();
+
+        // Call the Python function
+        std::string pythonCommand = "import CommandCreateBom\n"
+                                    "obj = App.getDocument('"
+            + doc_name + "').getObject('" + obj_name
+            + "')\n"
+              "Gui.Control.showDialog(CommandCreateBom.TaskAssemblyCreateBom(obj))";
+
+        PyRun_SimpleString(pythonCommand.c_str());
+
+        // Release the GIL
+        PyGILState_Release(gstate);
+    }
+    catch (...) {
+        PyErr_Print();
+    }
+
+    return true;
+}