Gui: move class SelectionObserverPython to its own source files

2022-11-22 15:44:26 +01:00
parent 6770b0ba7d
commit d038801aca
6 changed files with 308 additions and 240 deletions
--- a/src/Gui/SelectionObserverPython.h
+++ b/src/Gui/SelectionObserverPython.h
@@ -0,0 +1,84 @@
+/***************************************************************************
+ *   Copyright (c) 2022 Werner Mayer <wmayer[at]users.sourceforge.net>     *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  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 Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef GUI_SELECTIONOBSERVERPYTHON_H
+#define GUI_SELECTIONOBSERVERPYTHON_H
+
+#include <CXX/Objects.hxx>
+#include "Selection.h"
+
+
+namespace Gui
+{
+
+/**
+ * The SelectionObserverPython class implements a mechanism to register
+ * a Python class instance implementing the required interface in order
+ * to be notified on selection changes.
+ *
+ * @author Werner Mayer
+ */
+class GuiExport SelectionObserverPython : public SelectionObserver
+{
+
+public:
+    /// Constructor
+    explicit SelectionObserverPython(const Py::Object& obj, ResolveMode resolve = ResolveMode::OldStyleElement);
+    ~SelectionObserverPython() override;
+
+    static void addObserver(const Py::Object& obj, ResolveMode resolve = ResolveMode::OldStyleElement);
+    static void removeObserver(const Py::Object& obj);
+
+private:
+    void onSelectionChanged(const SelectionChanges& msg) override;
+    void addSelection(const SelectionChanges&);
+    void removeSelection(const SelectionChanges&);
+    void setSelection(const SelectionChanges&);
+    void clearSelection(const SelectionChanges&);
+    void setPreselection(const SelectionChanges&);
+    void removePreselection(const SelectionChanges&);
+    void pickedListChanged();
+
+private:
+    Py::Object inst;
+
+#define FC_PY_SEL_OBSERVER \
+    FC_PY_ELEMENT(onSelectionChanged) \
+    FC_PY_ELEMENT(addSelection) \
+    FC_PY_ELEMENT(removeSelection) \
+    FC_PY_ELEMENT(setSelection) \
+    FC_PY_ELEMENT(clearSelection) \
+    FC_PY_ELEMENT(setPreselection) \
+    FC_PY_ELEMENT(removePreselection) \
+    FC_PY_ELEMENT(pickedListChanged)
+
+#undef FC_PY_ELEMENT
+#define FC_PY_ELEMENT(_name) Py::Object py_##_name;
+
+    FC_PY_SEL_OBSERVER
+
+    static std::vector<SelectionObserverPython*> _instances;
+};
+
+} //namespace Gui
+
+#endif // GUI_SELECTIONOBSERVERPYTHON_H