better error-free enum fields

src/slic3r/GUI/Field.cpp

@@ -807,6 +807,32 @@ void Choice::set_value(const std::string& value, bool change_event)  //! Redunda
 	m_disable_change_event = false;
 }
 
+template<class T>
+int Choice::idx_from_enum_value(int val) {
+    if (!m_opt.enum_values.empty()) {
+        std::string key;
+        t_config_enum_values map_names = ConfigOptionEnum<T>::get_enum_values();
+        for (auto it : map_names) {
+            if (val == it.second) {
+                key = it.first;
+                break;
+            }
+        }
+
+        size_t idx = 0;
+        for (auto el : m_opt.enum_values)
+        {
+            if (el.compare(key) == 0)
+                break;
+            ++idx;
+        }
+
+        return idx == m_opt.enum_values.size() ? 0 : idx;
+    }
+    else
+        return 0;
+}
+
 void Choice::set_value(const boost::any& value, bool change_event)
 {
 	m_disable_change_event = !change_event;
@@ -846,50 +872,30 @@ void Choice::set_value(const boost::any& value, bool change_event)
         if (m_opt_id == "top_fill_pattern" || m_opt_id == "bottom_fill_pattern" || m_opt_id == "solid_fill_pattern"
             || m_opt_id == "fill_pattern" || m_opt_id == "support_fill_pattern")
         {
-            if (!m_opt.enum_values.empty()) {
+            val = idx_from_enum_value<InfillPattern>(val);
-                std::string key;
-                t_config_enum_values map_names = ConfigOptionEnum<InfillPattern>::get_enum_values();
-                for (auto it : map_names) {
-                    if (val == it.second) {
-                        key = it.first;
-                        break;
-                    }
-                }
-
-                size_t idx = 0;
-                for (auto el : m_opt.enum_values)
-                {
-                    if (el.compare(key) == 0)
-                        break;
-                    ++idx;
-                }
-
-                val = idx == m_opt.enum_values.size() ? 0 : idx;
-            }
-            else
-                val = 0;
         } else if (m_opt_id.compare("perimeter_loop_seam") == 0) {
-            if (!m_opt.enum_values.empty()) {
+            val = idx_from_enum_value<SeamPosition>(val);
-                std::string key;
-                t_config_enum_values map_names = ConfigOptionEnum<SeamPosition>::get_enum_values();
-                for (auto it : map_names) {
-                    if (val == it.second) {
-                        key = it.first;
-                        break;
-                    }
-                }
-
-                size_t idx = 0;
-                for (auto el : m_opt.enum_values) {
-                    if (el.compare(key) == 0)
-                        break;
-                    ++idx;
-                }
-
-                val = idx == m_opt.enum_values.size() ? 0 : idx;
-            } else
-                val = 3;
         }
+        else if (m_opt_id.compare("gcode_flavor") == 0)
+            val = idx_from_enum_value<GCodeFlavor>(val);
+        else if (m_opt_id.compare("support_material_pattern") == 0)
+            val = idx_from_enum_value<SupportMaterialPattern>(val);
+        else if (m_opt_id.compare("seam_position") == 0)
+            val = idx_from_enum_value<SeamPosition>(val);
+        else if (m_opt_id.compare("host_type") == 0)
+            val = idx_from_enum_value<PrintHostType>(val);
+        else if (m_opt_id.compare("infill_dense_algo") == 0)
+            val = idx_from_enum_value<DenseInfillAlgo>(val);
+        else if (m_opt_id.compare("no_perimeter_unsupported_algo") == 0)
+            val = idx_from_enum_value<NoPerimeterUnsupportedAlgo>(val);
+        else if (m_opt_id.compare("wipe_advanced_algo") == 0)
+            val = idx_from_enum_value<WipeAlgo>(val);
+        else if (m_opt_id.compare("support_material_contact_distance_type") == 0)
+            val = idx_from_enum_value<SupportZDistanceType>(val);
+        else if (m_opt_id.compare("display_orientation") == 0)
+            val = idx_from_enum_value<SLADisplayOrientation>(val);
+        else if (m_opt_id.compare("support_pillar_connection_mode") == 0)
+            val = idx_from_enum_value<SLAPillarConnectionMode>(val);
 		field->SetSelection(val);
 		break;
 	}
@@ -920,6 +926,19 @@ void Choice::set_values(const std::vector<std::string>& values)
 	m_disable_change_event = false;
 }
 
+template<class T>
+void Choice::convert_to_enum_value(int ret_enum) {
+    if (!m_opt.enum_values.empty()) {
+        std::string key = m_opt.enum_values[ret_enum];
+        t_config_enum_values map_names = ConfigOptionEnum<T>::get_enum_values();
+        int value = map_names.at(key);
+
+        m_value = static_cast<T>(value);
+    }
+    else
+        m_value = static_cast<T>(m_opt.default_value.get()->getInt());
+}
+
 boost::any& Choice::get_value()
 {
     wxBitmapComboBox* field = dynamic_cast<wxBitmapComboBox*>(window);
@@ -937,45 +956,29 @@ boost::any& Choice::get_value()
         int ret_enum = field->GetSelection(); 
         if (m_opt_id == "top_fill_pattern" || m_opt_id == "bottom_fill_pattern" || m_opt_id == "solid_fill_pattern" 
             || m_opt_id == "support_material_interface_pattern" || m_opt_id == "fill_pattern")
-        {
+            convert_to_enum_value<InfillPattern>(ret_enum);
-            if (!m_opt.enum_values.empty()) {
-                std::string key = m_opt.enum_values[ret_enum];
-                t_config_enum_values map_names = ConfigOptionEnum<InfillPattern>::get_enum_values();
-                int value = map_names.at(key);
-
-                m_value = static_cast<InfillPattern>(value);
-            }
-            else
-                m_value = static_cast<InfillPattern>(0);
-        }
         else if (m_opt_id.compare("gcode_flavor") == 0)
-            m_value = static_cast<GCodeFlavor>(ret_enum);
+            convert_to_enum_value<GCodeFlavor>(ret_enum);
         else if (m_opt_id.compare("support_material_pattern") == 0)
-            m_value = static_cast<SupportMaterialPattern>(ret_enum);
+            convert_to_enum_value<SupportMaterialPattern>(ret_enum);
         else if (m_opt_id.compare("seam_position") == 0)
-            m_value = static_cast<SeamPosition>(ret_enum);
+            convert_to_enum_value<SeamPosition>(ret_enum);
-        else if (m_opt_id.compare("perimeter_loop_seam") == 0) {
+        else if (m_opt_id.compare("perimeter_loop_seam") == 0)
-            if (!m_opt.enum_values.empty()) {
+            convert_to_enum_value<SeamPosition>(ret_enum);
-                std::string key = m_opt.enum_values[ret_enum];
+        else if (m_opt_id.compare("host_type") == 0)
-                t_config_enum_values map_names = ConfigOptionEnum<SeamPosition>::get_enum_values();
+            convert_to_enum_value<PrintHostType>(ret_enum);
-                int value = map_names.at(key);
-                m_value = static_cast<SeamPosition>(value);
-            } else
-                m_value = static_cast<SeamPosition>(3);
-        } else if (m_opt_id.compare("host_type") == 0)
-            m_value = static_cast<PrintHostType>(ret_enum);
         else if (m_opt_id.compare("infill_dense_algo") == 0)
-            m_value = static_cast<DenseInfillAlgo>(ret_enum);
+            convert_to_enum_value<DenseInfillAlgo>(ret_enum);
         else if (m_opt_id.compare("no_perimeter_unsupported_algo") == 0)
-            m_value = static_cast<NoPerimeterUnsupportedAlgo>(ret_enum);
+            convert_to_enum_value<NoPerimeterUnsupportedAlgo>(ret_enum);
         else if (m_opt_id.compare("wipe_advanced_algo") == 0)
-            m_value = static_cast<WipeAlgo>(ret_enum);
+            convert_to_enum_value<WipeAlgo>(ret_enum);
         else if (m_opt_id.compare("support_material_contact_distance_type") == 0)
-            m_value = static_cast<SupportZDistanceType>(ret_enum);
+            convert_to_enum_value<SupportZDistanceType>(ret_enum);
 		else if (m_opt_id.compare("display_orientation") == 0)
-			m_value = static_cast<SLADisplayOrientation>(ret_enum);
+            convert_to_enum_value<SLADisplayOrientation>(ret_enum);
         else if (m_opt_id.compare("support_pillar_connection_mode") == 0)
-            m_value = static_cast<SLAPillarConnectionMode>(ret_enum);
+            convert_to_enum_value<SLAPillarConnectionMode>(ret_enum);
 	}
     else if (m_opt.gui_type == "f_enum_open") {
         const int ret_enum = field->GetSelection();

src/slic3r/GUI/Field.hpp

@@ -376,6 +376,11 @@ public:
 class Choice : public Field {
 	using Field::Field;
     int             m_width{ 15 };
+protected:
+    //used by get_value when it's an enum
+    //convert the value from the select to the enum value. store it in m_value
+    template<class T> void convert_to_enum_value(int idx_val);
+    template<class T> int idx_from_enum_value(int enum_val);
 public:
 	Choice(const ConfigOptionDef& opt, const t_config_option_key& id) : Field(opt, id) {}
 	Choice(wxWindow* parent, const ConfigOptionDef& opt, const t_config_option_key& id) : Field(parent, opt, id) {}