Localization improvements:

* added wrapper to SliderFloat in imgui
 * fixed localized text in Mouse3DController
 * added take_snapshot for extruder change in object list
 * fixed text typos in AppConfig.cpp, ConfigWizard.cpp and ConfigManipulation.cpp

src/slic3r/GUI/AppConfig.cpp

@@ -103,7 +103,7 @@ void AppConfig::load()
         // Error while parsing config file. We'll customize the error message and rethrow to be displayed.
         throw std::runtime_error(
         	_utf8(L("Error parsing PrusaSlicer config file, it is probably corrupted. "
-                    "Try to manualy delete the file to recover from the error. Your user profiles will not be affected.")) + 
+                    "Try to manually delete the file to recover from the error. Your user profiles will not be affected.")) + 
         	"\n\n" + AppConfig::config_path() + "\n\n" + ex.what());
     }
 

src/slic3r/GUI/ConfigManipulation.cpp

@@ -77,7 +77,7 @@ void ConfigManipulation::update_print_fff_config(DynamicPrintConfig* config, con
                                 "- no top solid layers\n"
                                 "- 0% fill density\n"
                                 "- no support material\n"
-                                "- no ensure_vertical_shell_thickness"));
+                                "- inactive Ensure vertical shell thickness"));
         if (is_global_config)
             msg_text += "\n\n" + _(L("Shall I adjust those settings in order to enable Spiral Vase?"));
         wxMessageDialog dialog(nullptr, msg_text, _(L("Spiral Vase")),

src/slic3r/GUI/ConfigWizard.cpp

@@ -778,8 +778,8 @@ PageMode::PageMode(ConfigWizard *parent)
 {
     append_text(_(L("PrusaSlicer's user interfaces comes in three variants:\nSimple, Advanced, and Expert.\n"
         "The Simple mode shows only the most frequently used settings relevant for regular 3D printing. "
-        "The other two offer progressivly more sophisticated fine-tuning, "
-        "they are suitable for advanced and expert usiser, respectively.")));
+        "The other two offer progressively more sophisticated fine-tuning, "
+        "they are suitable for advanced and expert users, respectively.")));
 
     radio_simple = new wxRadioButton(this, wxID_ANY, _(L("Simple mode")));
     radio_advanced = new wxRadioButton(this, wxID_ANY, _(L("Advanced mode")));

src/slic3r/GUI/GUI_ObjectList.cpp

@@ -525,6 +525,8 @@ void ObjectList::update_extruder_in_config(const wxDataViewItem& item)
     if (!m_config)
         return;
 
+    take_snapshot(_(L("Change Extruder")));
+
     const int extruder = m_objects_model->GetExtruderNumber(item);
     m_config->set_key_value("extruder", new ConfigOptionInt(extruder));
 
@@ -3846,6 +3848,9 @@ void ObjectList::set_extruder_for_selected_items(const int extruder) const
     wxDataViewItemArray sels;
     GetSelections(sels);
 
+    if (!sels.empty())
+        take_snapshot(_(L("Change Extruders")));
+
     for (const wxDataViewItem& item : sels)
     {
         DynamicPrintConfig& config = get_item_config(item);

src/slic3r/GUI/ImGuiWrapper.cpp

@@ -317,6 +317,22 @@ void ImGuiWrapper::text(const wxString &label)
     this->text(label_utf8.c_str());
 }
 
+bool ImGuiWrapper::slider_float(const char* label, float* v, float v_min, float v_max, const char* format/* = "%.3f"*/, float power/* = 1.0f*/)
+{
+    return ImGui::SliderFloat(label, v, v_min, v_max, format, power);
+}
+
+bool ImGuiWrapper::slider_float(const std::string& label, float* v, float v_min, float v_max, const char* format/* = "%.3f"*/, float power/* = 1.0f*/)
+{
+    return this->slider_float(label.c_str(), v, v_min, v_max, format, power);
+}
+
+bool ImGuiWrapper::slider_float(const wxString& label, float* v, float v_min, float v_max, const char* format/* = "%.3f"*/, float power/* = 1.0f*/)
+{
+    auto label_utf8 = into_u8(label);
+    return this->slider_float(label_utf8.c_str(), v, v_min, v_max, format, power);
+}
+
 bool ImGuiWrapper::combo(const wxString& label, const std::vector<std::string>& options, int& selection)
 {
     // this is to force the label to the left of the widget:

src/slic3r/GUI/ImGuiWrapper.hpp

@@ -66,6 +66,9 @@ public:
     void text(const char *label);
     void text(const std::string &label);
     void text(const wxString &label);
+    bool slider_float(const char* label, float* v, float v_min, float v_max, const char* format = "%.3f", float power = 1.0f);
+    bool slider_float(const std::string& label, float* v, float v_min, float v_max, const char* format = "%.3f", float power = 1.0f);
+    bool slider_float(const wxString& label, float* v, float v_min, float v_max, const char* format = "%.3f", float power = 1.0f);
     bool combo(const wxString& label, const std::vector<std::string>& options, int& selection);   // Use -1 to not mark any option as selected
     bool undo_redo_list(const ImVec2& size, const bool is_undo, bool (*items_getter)(const bool, int, const char**), int& hovered, int& selected);
 

src/slic3r/GUI/Mouse3DController.cpp

@@ -267,11 +267,11 @@ void Mouse3DController::render_settings_dialog(unsigned int canvas_width, unsign
     ImGui::PopStyleColor();
 
     float translation_scale = (float)m_state.get_translation_scale() / State::DefaultTranslationScale;
-    if (ImGui::SliderFloat(_(L("Translation##1")), &translation_scale, 0.5f, 2.0f, "%.1f"))
+    if (imgui.slider_float(_(L("Translation")) + "##1", &translation_scale, 0.5f, 2.0f, "%.1f"))
         m_state.set_translation_scale(State::DefaultTranslationScale * (double)translation_scale);
 
     float rotation_scale = m_state.get_rotation_scale() / State::DefaultRotationScale;
-    if (ImGui::SliderFloat(_(L("Rotation##1")), &rotation_scale, 0.5f, 2.0f, "%.1f"))
+    if (imgui.slider_float(_(L("Rotation")) + "##1", &rotation_scale, 0.5f, 2.0f, "%.1f"))
         m_state.set_rotation_scale(State::DefaultRotationScale * rotation_scale);
 
     ImGui::Separator();
@@ -280,11 +280,11 @@ void Mouse3DController::render_settings_dialog(unsigned int canvas_width, unsign
     ImGui::PopStyleColor();
 
     float translation_deadzone = (float)m_state.get_translation_deadzone();
-    if (ImGui::SliderFloat(_(L("Translation##2")), &translation_deadzone, 0.0f, (float)State::MaxTranslationDeadzone, "%.2f"))
+    if (imgui.slider_float(_(L("Translation")) + "##2", &translation_deadzone, 0.0f, (float)State::MaxTranslationDeadzone, "%.2f"))
         m_state.set_translation_deadzone((double)translation_deadzone);
 
     float rotation_deadzone = m_state.get_rotation_deadzone();
-    if (ImGui::SliderFloat(_(L("Rotation##2")), &rotation_deadzone, 0.0f, State::MaxRotationDeadzone, "%.2f"))
+    if (imgui.slider_float(_(L("Rotation")) + "##2", &rotation_deadzone, 0.0f, State::MaxRotationDeadzone, "%.2f"))
         m_state.set_rotation_deadzone(rotation_deadzone);
 
 #if ENABLE_3DCONNEXION_DEVICES_DEBUG_OUTPUT