Add private methods to get the selected preset name(s).

src/GUI/Plater/PresetChooser.cpp

@@ -127,6 +127,23 @@ bool PresetChooser::prompt_unsaved_changes() {
     return true;
 }
 
+std::vector<wxString> PresetChooser::_get_selected_presets(preset_t group) const {
+        const auto& choosers { this->preset_choosers[get_preset(group)] };
+        std::vector<wxString> selected;
+        selected.reserve(choosers.size());
+
+        for (auto* chooser :  choosers) {
+            selected.push_back(chooser->GetString(chooser->GetSelection()));
+        }
+        return selected;
+}
+
+wxString PresetChooser::_get_selected_preset(preset_t group, size_t index) const {
+    auto selected { this->_get_selected_presets(group) };
+    if (index > selected.size()) { return wxString(""); }
+    return selected.at(index);
+}
+
 void PresetChooser::_on_change_combobox(preset_t preset, wxBitmapComboBox* choice) {
     
     // Prompt for unsaved changes and undo selections if cancelled and return early

src/GUI/Plater/PresetChooser.hpp

@@ -79,6 +79,12 @@ private:
 
     void _on_select_preset(preset_t preset);
 
+    /// Return the vector of strings representing the selected preset names.
+    std::vector<wxString> _get_selected_presets(preset_t group) const;
+
+    /// Fetch the preset name corresponding to the chooser index
+    wxString _get_selected_preset(preset_t group, size_t index) const;
+
 };
 
 }} // Slic3r::GUI