Refactor Reload Presets based on PR review

- Remove auto-select of newly found presets (don't change user's selection)
- Add toast notification showing reload stats (new process/filament counts)
- Remove reload button from Tab toolbar (was confusing next to profile-specific buttons)
- Move File menu entry below Batch Preset Management
- Make menu entry cross-platform (was Mac-only, now shows on all platforms)
- Change shortcut to Cmd+Shift+R / Ctrl+Shift+R (Cmd+R conflicts with slice)

Author: adele-with-a-b

src/slic3r/GUI/GUI_App.cpp

@@ -5707,25 +5707,32 @@ void GUI_App::reload_user_presets_from_disk()
     preset_bundle->load_user_presets(user_id, ForwardCompatibilitySubstitutionRule::Enable);
     mainframe->update_side_preset_ui();
 
-    // Find new presets and select the last one found
-    std::string new_print, new_filament;
+    // Count new and modified presets for notification
+    int new_prints = 0, new_filaments = 0;
     for (const auto& p : preset_bundle->prints)
         if (p.is_user() && old_prints.find(p.name) == old_prints.end())
-            new_print = p.name;
+            new_prints++;
     for (const auto& p : preset_bundle->filaments)
         if (p.is_user() && old_filaments.find(p.name) == old_filaments.end())
-            new_filament = p.name;
-
-    if (!new_print.empty()) {
-        BOOST_LOG_TRIVIAL(info) << "New process preset found, selecting: " << new_print;
-        auto tab = get_tab(Preset::TYPE_PRINT);
-        if (tab) tab->select_preset(new_print);
-    }
-    if (!new_filament.empty()) {
-        BOOST_LOG_TRIVIAL(info) << "New filament preset found, selecting: " << new_filament;
-        auto tab = get_tab(Preset::TYPE_FILAMENT);
-        if (tab) tab->select_preset(new_filament);
-    }
+            new_filaments++;
+
+    // Show toast notification with reload stats
+    std::string msg = "Presets reloaded";
+    if (new_prints > 0 || new_filaments > 0) {
+        msg += ": ";
+        std::vector<std::string> parts;
+        if (new_prints > 0)
+            parts.push_back(std::to_string(new_prints) + " new process");
+        if (new_filaments > 0)
+            parts.push_back(std::to_string(new_filaments) + " new filament");
+        for (size_t i = 0; i < parts.size(); i++) {
+            if (i > 0) msg += ", ";
+            msg += parts[i];
+        }
+    }
+    BOOST_LOG_TRIVIAL(info) << msg;
+    if (plater())
+        plater()->get_notification_manager()->push_notification(msg);
 }
 
 //BBS reload when logout

src/slic3r/GUI/MainFrame.cpp

@@ -2658,11 +2658,6 @@ void MainFrame::init_menubar_as_editor()
         append_menu_item(fileMenu, wxID_ANY, _L("Save Project") + "\t" + ctrl + "S", _L("Save current project to file"),
             [this](wxCommandEvent&) { if (m_plater) m_plater->save_project(); }, "", nullptr,
             [this](){return m_plater != nullptr && can_save(); }, this);
-
-        // Reload user presets from disk
-        append_menu_item(fileMenu, wxID_ANY, _L("Reload Presets") + "\t" + ctrl + "R", _L("Reload user presets from disk"),
-            [](wxCommandEvent&) { wxGetApp().reload_user_presets_from_disk(); }, "", nullptr,
-            []() { return true; }, this);
 #endif
 
 
@@ -2758,6 +2753,11 @@ void MainFrame::init_menubar_as_editor()
             },
             "", nullptr);
 
+        // Reload user presets from disk
+        append_menu_item(fileMenu, wxID_ANY, _L("Reload Presets") + "\t" + ctrl + _L("Shift+") + "R", _L("Reload user presets from disk"),
+            [](wxCommandEvent&) { wxGetApp().reload_user_presets_from_disk(); }, "", nullptr,
+            []() { return true; }, this);
+
         fileMenu->AppendSeparator();
 
 #ifndef __APPLE__

src/slic3r/GUI/Tab.cpp

@@ -234,7 +234,6 @@ void Tab::create_preset_tab()
     });
 
     //add_scaled_button(panel, &m_btn_compare_preset, "compare");
-    add_scaled_button(m_top_panel, &m_btn_reload_presets, "reload_preset");
     add_scaled_button(m_top_panel, &m_btn_save_preset, "save");
     add_scaled_button(m_top_panel, &m_btn_delete_preset, "cross");
     //if (m_type == Preset::Type::TYPE_PRINTER)
@@ -373,7 +372,6 @@ void Tab::create_preset_tab()
     m_top_sizer->Add( m_undo_to_sys_btn, 0, wxALIGN_CENTER_VERTICAL);
     m_top_sizer->AddSpacer(8);
 #endif
-    m_top_sizer->Add( m_btn_reload_presets, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, FromDIP(12));
     m_top_sizer->Add( m_btn_save_preset, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, FromDIP(12));
     m_top_sizer->Add( m_btn_delete_preset, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, FromDIP(12) );
     m_top_sizer->Add( m_btn_search, 0, wxALIGN_CENTER_VERTICAL | wxLEFT , FromDIP(12) );
@@ -612,8 +610,6 @@ void Tab::create_preset_tab()
 
     //m_btn_compare_preset->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e) { compare_preset(); }));
     m_btn_save_preset->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e) { save_preset(); }));
-    m_btn_reload_presets->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e) { wxGetApp().reload_user_presets_from_disk(); }));
-    m_btn_reload_presets->SetToolTip(_L("Reload presets from disk"));
     m_btn_delete_preset->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e) { delete_preset(); }));
     /*m_btn_hide_incompatible_presets->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e) {
         toggle_show_hide_incompatible();

src/slic3r/GUI/Tab.hpp

@@ -156,7 +156,6 @@ class Tab: public wxPanel
 
 	ScalableButton*		m_btn_compare_preset;
 	ScalableButton*		m_btn_save_preset;
-	ScalableButton*		m_btn_reload_presets;
 	ScalableButton*		m_btn_delete_preset;
 	//ScalableButton*		m_btn_edit_ph_printer {nullptr};
 	//ScalableButton*		m_btn_hide_incompatible_presets;