From 88bd1890476133f8930b5dd07880da0c480d5282 Mon Sep 17 00:00:00 2001
From: YuSanka <yusanka@gmail.com>
Date: Wed, 24 Feb 2021 15:50:18 +0100
Subject: [PATCH 1/8] Some code refactoring follow-up
 https://github.com/prusa3d/PrusaSlicer/commit/33aa6be7b7f3d8b81d6b948f9bd6841db10b61cf
 and
 https://github.com/prusa3d/PrusaSlicer/commit/92b1302a082b76de6693799ccdb7922617f21c50

---
 src/slic3r/GUI/DoubleSlider.cpp | 24 +---------
 src/slic3r/GUI/MainFrame.cpp    | 14 ++----
 src/slic3r/GUI/Tab.cpp          | 82 ++++++++++++---------------------
 src/slic3r/GUI/Tab.hpp          | 13 ++----
 4 files changed, 39 insertions(+), 94 deletions(-)

diff --git a/src/slic3r/GUI/DoubleSlider.cpp b/src/slic3r/GUI/DoubleSlider.cpp
index 7d135e0aa3..c12d361120 100644
--- a/src/slic3r/GUI/DoubleSlider.cpp
+++ b/src/slic3r/GUI/DoubleSlider.cpp
@@ -10,6 +10,7 @@
 #include "libslic3r/AppConfig.hpp"
 #include "GUI_Utils.hpp"
 #include "MsgDialog.hpp"
+#include "Tab.hpp"
 
 #include <wx/button.h>
 #include <wx/dialog.h>
@@ -2033,27 +2034,6 @@ static void upgrade_text_entry_dialog(wxTextEntryDialog* dlg, double min = -1.0,
     }, btn_OK->GetId());
 }
 
-#if ENABLE_VALIDATE_CUSTOM_GCODE
-static bool validate_custom_gcode(const std::string& gcode, const wxString& title)
-{
-    std::vector<std::string> tags;
-    bool invalid = GCodeProcessor::contains_reserved_tags(gcode, 5, tags);
-    if (invalid) {
-        wxString reports = _L_PLURAL("The following line", "The following lines", tags.size());
-        reports += ":\n";
-        for (const std::string& keyword : tags) {
-            reports += ";" + keyword + "\n";
-        }
-        reports += _L("contain reserved keywords.") + "\n";
-        reports += _L("Please remove them, as they may cause problems in g-code visualization and printing time estimation.");
-
-        wxMessageDialog dialog(nullptr, reports, _L("Found reserved keywords in") + " " + title, wxICON_WARNING | wxOK);
-        dialog.ShowModal();
-    }
-    return !invalid;
-}
-#endif // ENABLE_VALIDATE_CUSTOM_GCODE
-
 static std::string get_custom_code(const std::string& code_in, double height)
 {
     wxString msg_text = _L("Enter custom G-code used on current layer") + ":";
@@ -2072,7 +2052,7 @@ static std::string get_custom_code(const std::string& code_in, double height)
             return "";
 
         value = dlg.GetValue().ToStdString();
-        valid = validate_custom_gcode(value, _L("Custom G-code"));
+        valid = GUI::Tab::validate_custom_gcode("Custom G-code", value);
     } while (!valid);
     return value;
 #else
diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index c6d85067e1..386a150f70 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -548,18 +548,10 @@ void MainFrame::init_tabpanel()
     m_tabpanel->Bind(wxEVT_NOTEBOOK_PAGE_CHANGING, [this](wxBookCtrlEvent& evt) {
         wxWindow* panel = m_tabpanel->GetCurrentPage();
         if (panel != nullptr) {
-            TabPrinter* printer_tab = dynamic_cast<TabPrinter*>(panel);
-            if (printer_tab != nullptr) {
-                if (!printer_tab->validate_custom_gcodes())
+            Tab* tab = dynamic_cast<Tab*>(panel);
+            if (tab && (tab->type() == Preset::TYPE_FILAMENT || tab->type() == Preset::TYPE_PRINTER))
+                if (!tab->validate_custom_gcodes())
                     evt.Veto();
-                return;
-            }
-            TabFilament* filament_tab = dynamic_cast<TabFilament*>(panel);
-            if (filament_tab != nullptr) {
-                if (!filament_tab->validate_custom_gcodes())
-                    evt.Veto();
-                return;
-            }
         }
         });
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index 9e8d08d072..fa1f31ab5d 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -1712,11 +1712,11 @@ void TabPrint::clear_pages()
 }
 
 #if ENABLE_VALIDATE_CUSTOM_GCODE
-static bool validate_custom_gcode(wxWindow* parent, const wxString& title, const std::string& gcode)
+bool Tab::validate_custom_gcode(const wxString& title, const std::string& gcode)
 {
     std::vector<std::string> tags;
     bool invalid = GCodeProcessor::contains_reserved_tags(gcode, 5, tags);
-    if (parent != nullptr && invalid) {
+    if (invalid) {
         wxString reports = _L_PLURAL("The following line", "The following lines", tags.size());
         reports += ":\n";
         for (const std::string& keyword : tags) {
@@ -1725,11 +1725,17 @@ static bool validate_custom_gcode(wxWindow* parent, const wxString& title, const
         reports += _L("contain reserved keywords.") + "\n";
         reports += _L("Please remove them, as they may cause problems in g-code visualization and printing time estimation.");
 
-        wxMessageDialog dialog(parent, reports, _L("Found reserved keywords in") + " " + title, wxICON_WARNING | wxOK);
+        wxMessageDialog dialog(wxGetApp().mainframe, reports, _L("Found reserved keywords in") + " " + _(title), wxICON_WARNING | wxOK);
         dialog.ShowModal();
     }
     return !invalid;
 }
+
+static void validate_custom_gcode_cb(Tab* tab, ConfigOptionsGroupShp opt_group, const boost::any& value) {
+    Tab::validate_custom_gcode(opt_group->title, boost::any_cast<std::string>(value));
+    tab->update_dirty();
+    tab->update();
+}
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
 
 void TabFilament::add_filament_overrides_page()
@@ -1957,7 +1963,7 @@ void TabFilament::build()
         optgroup = page->new_optgroup(L("Start G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Start G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, value);
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("start_filament_gcode");
@@ -1969,7 +1975,7 @@ void TabFilament::build()
         optgroup = page->new_optgroup(L("End G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("End G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, value);
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("end_filament_gcode");
@@ -2086,25 +2092,6 @@ void TabFilament::clear_pages()
 	m_cooling_description_line = nullptr;
 }
 
-#if ENABLE_VALIDATE_CUSTOM_GCODE
-bool TabFilament::validate_custom_gcodes() const
-{
-    auto check_optgroup = [this](const wxString& title, const Slic3r::t_config_option_key& key) {
-        const ConfigOptionsGroupShp opt_group = m_active_page->get_optgroup(title);
-        return (opt_group != nullptr) ?
-            validate_custom_gcode((wxWindow*)this, title, boost::any_cast<std::string>(opt_group->get_value(key))) :
-            true;
-    };
-
-    bool valid = true;
-    if (m_active_page->title() == L("Custom G-code")) {
-        valid &= check_optgroup(L("Start G-code"), "start_filament_gcode");
-        valid &= check_optgroup(L("End G-code"), "end_filament_gcode");
-    }
-    return valid;
-}
-#endif // ENABLE_VALIDATE_CUSTOM_GCODE
-
 wxSizer* Tab::description_line_widget(wxWindow* parent, ogStaticText* *StaticText, wxString text /*= wxEmptyString*/)
 {
     *StaticText = new ogStaticText(parent, text);
@@ -2295,7 +2282,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("Start G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Start G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("start_gcode");
@@ -2307,7 +2294,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("End G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("End G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("end_gcode");
@@ -2319,7 +2306,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("Before layer change G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Before layer change G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("before_layer_gcode");
@@ -2331,7 +2318,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("After layer change G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("After layer change G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("layer_gcode");
@@ -2343,7 +2330,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("Tool change G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Tool change G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("toolchange_gcode");
@@ -2355,7 +2342,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("Between objects G-code (for sequential printing)"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Between objects G-code (for sequential printing)"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("between_objects_gcode");
@@ -2367,7 +2354,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("Color Change G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Color Change G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("color_change_gcode");
@@ -2378,7 +2365,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("Pause Print G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Pause Print G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("pause_print_gcode");
@@ -2389,7 +2376,7 @@ void TabPrinter::build_fff()
         optgroup = page->new_optgroup(L("Template Custom G-code"), 0);
 #if ENABLE_VALIDATE_CUSTOM_GCODE
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
-            validate_custom_gcode(this, L("Template Custom G-code"), boost::any_cast<std::string>(value));
+            validate_custom_gcode_cb(this, optgroup, boost::any_cast<std::string>(value));
         };
 #endif // ENABLE_VALIDATE_CUSTOM_GCODE
         option = optgroup->get_option("template_custom_gcode");
@@ -3842,28 +3829,17 @@ void TabPrinter::apply_extruder_cnt_from_cache()
 }
 
 #if ENABLE_VALIDATE_CUSTOM_GCODE
-bool TabPrinter::validate_custom_gcodes() const
+bool Tab::validate_custom_gcodes()
 {
-    auto check_optgroup = [this](const wxString& title, const Slic3r::t_config_option_key& key) {
-        const ConfigOptionsGroupShp opt_group = m_active_page->get_optgroup(title);
-        return (opt_group != nullptr) ? 
-            validate_custom_gcode((wxWindow*)this, title, boost::any_cast<std::string>(opt_group->get_value(key))) :
-            true;
-    };
-
     bool valid = true;
-    if (m_printer_technology == ptFFF) {
-        if (m_active_page->title() == L("Custom G-code")) {
-            valid &= check_optgroup(L("Start G-code"), "start_gcode");
-            valid &= check_optgroup(L("End G-code"), "end_gcode");
-            valid &= check_optgroup(L("Before layer change G-code"), "before_layer_gcode");
-            valid &= check_optgroup(L("After layer change G-code"), "layer_gcode");
-            valid &= check_optgroup(L("Tool change G-code"), "toolchange_gcode");
-            valid &= check_optgroup(L("Between objects G-code (for sequential printing)"), "between_objects_gcode");
-            valid &= check_optgroup(L("Color Change G-code"), "color_change_gcode");
-            valid &= check_optgroup(L("Pause Print G-code"), "pause_print_gcode");
-            valid &= check_optgroup(L("Template Custom G-code"), "template_custom_gcode");
-        }
+    if ((m_type == Preset::TYPE_FILAMENT || 
+        m_type == Preset::TYPE_PRINTER && static_cast<TabPrinter*>(this)->m_printer_technology == ptFFF) &&
+        m_active_page->title() == "Custom G-code") {
+            for (auto opt_group : m_active_page->m_optgroups) {
+                assert(opt_group->opt_map().size() == 1);
+                std::string key = opt_group->opt_map().begin()->first;
+                valid &= validate_custom_gcode(opt_group->title, boost::any_cast<std::string>(opt_group->get_value(key)));
+            }
     }
     return valid;
 }
diff --git a/src/slic3r/GUI/Tab.hpp b/src/slic3r/GUI/Tab.hpp
index add2b3aa5e..fcbe27eb7f 100644
--- a/src/slic3r/GUI/Tab.hpp
+++ b/src/slic3r/GUI/Tab.hpp
@@ -348,6 +348,11 @@ public:
 
 	const std::map<wxString, std::string>& get_category_icon_map() { return m_category_icon; }
 
+#if ENABLE_VALIDATE_CUSTOM_GCODE
+	static bool validate_custom_gcode(const wxString& title, const std::string& gcode);
+	bool        validate_custom_gcodes();
+#endif // ENABLE_VALIDATE_CUSTOM_GCODE
+
 protected:
 	void			create_line_with_widget(ConfigOptionsGroup* optgroup, const std::string& opt_key, const wxString& path, widget_t widget);
 	wxSizer*		compatible_widget_create(wxWindow* parent, PresetDependencies &deps);
@@ -412,10 +417,6 @@ public:
 	void		update() override;
 	void		clear_pages() override;
     bool 		supports_printer_technology(const PrinterTechnology tech) override { return tech == ptFFF; }
-
-#if ENABLE_VALIDATE_CUSTOM_GCODE
-	bool        validate_custom_gcodes() const;
-#endif // ENABLE_VALIDATE_CUSTOM_GCODE
 };
 
 class TabPrinter : public Tab
@@ -474,10 +475,6 @@ public:
 	wxSizer*	create_bed_shape_widget(wxWindow* parent);
 	void		cache_extruder_cnt();
 	void		apply_extruder_cnt_from_cache();
-
-#if ENABLE_VALIDATE_CUSTOM_GCODE
-	bool        validate_custom_gcodes() const;
-#endif // ENABLE_VALIDATE_CUSTOM_GCODE
 };
 
 class TabSLAMaterial : public Tab

From 61a5b43ac3812e18006560363848554ce0f56151 Mon Sep 17 00:00:00 2001
From: Vojtech Bubnik <bubnikv@gmail.com>
Date: Wed, 24 Feb 2021 15:59:09 +0100
Subject: [PATCH 2/8] Fix of Add option to change support interface pattern
 #1197 New config field for switching the support interface pattern between
 default (rectilinear for non-soluble interface, concentric for soluble
 interface), explicit rectilinear and explicit concentric.

Also the config layer was reworked a bit to reduce some switch statements
on ConfigOptionEnum<> templates.
---
 src/libslic3r/Config.hpp                |  1 +
 src/libslic3r/Preset.cpp                |  2 +-
 src/libslic3r/PrintConfig.cpp           | 16 ++++++++++
 src/libslic3r/PrintConfig.hpp           | 16 ++++++++++
 src/libslic3r/PrintObject.cpp           |  1 +
 src/libslic3r/SupportMaterial.cpp       |  9 ++++--
 src/slic3r/GUI/ConfigManipulation.cpp   |  3 +-
 src/slic3r/GUI/Field.cpp                |  2 ++
 src/slic3r/GUI/GUI.cpp                  | 11 ++++++-
 src/slic3r/GUI/GUI_ObjectList.cpp       |  2 +-
 src/slic3r/GUI/OptionsGroup.cpp         | 42 ++-----------------------
 src/slic3r/GUI/Tab.cpp                  |  1 +
 src/slic3r/GUI/UnsavedChangesDialog.cpp | 30 ++++--------------
 13 files changed, 66 insertions(+), 70 deletions(-)

diff --git a/src/libslic3r/Config.hpp b/src/libslic3r/Config.hpp
index 218e8cd0cf..9c9b5d3486 100644
--- a/src/libslic3r/Config.hpp
+++ b/src/libslic3r/Config.hpp
@@ -1313,6 +1313,7 @@ public:
     ConfigOptionEnum<T>&    operator=(const ConfigOption *opt) { this->set(opt); return *this; }
     bool                    operator==(const ConfigOptionEnum<T> &rhs) const { return this->value == rhs.value; }
     int                     getInt() const override { return (int)this->value; }
+    void                    setInt(int val) override { this->value = T(val); }
 
     bool operator==(const ConfigOption &rhs) const override
     {
diff --git a/src/libslic3r/Preset.cpp b/src/libslic3r/Preset.cpp
index 6a656e6d8f..6c500b84a6 100644
--- a/src/libslic3r/Preset.cpp
+++ b/src/libslic3r/Preset.cpp
@@ -429,7 +429,7 @@ const std::vector<std::string>& Preset::print_options()
         "raft_layers", "raft_first_layer_density", "raft_first_layer_expansion", "raft_contact_distance", "raft_expansion",
         "support_material_pattern", "support_material_with_sheath", "support_material_spacing",
         "support_material_synchronize_layers", "support_material_angle", "support_material_interface_layers",
-        "support_material_interface_spacing", "support_material_interface_contact_loops", "support_material_contact_distance",
+        "support_material_interface_pattern", "support_material_interface_spacing", "support_material_interface_contact_loops", "support_material_contact_distance",
         "support_material_buildplate_only", "dont_support_bridges", "notes", "complete_objects", "extruder_clearance_radius",
         "extruder_clearance_height", "gcode_comments", "gcode_label_objects", "output_filename_format", "post_process", "perimeter_extruder",
         "infill_extruder", "solid_infill_extruder", "support_material_extruder", "support_material_interface_extruder",
diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index b272dbfba3..480ce45901 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -2341,6 +2341,22 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionEnum<SupportMaterialPattern>(smpRectilinear));
 
+    def = this->add("support_material_interface_pattern", coEnum);
+    def->label = L("Interface pattern");
+    def->category = L("Support material");
+    def->tooltip = L("Pattern used to generate support material interface. "
+                     "Default pattern for non-soluble support interface is Rectilinear, "
+                     "while default pattern for soluble support interface is Concentric.");
+    def->enum_keys_map = &ConfigOptionEnum<SupportMaterialInterfacePattern>::get_enum_values();
+    def->enum_values.push_back("auto");
+    def->enum_values.push_back("rectilinear");
+    def->enum_values.push_back("concentric");
+    def->enum_labels.push_back(L("Default"));
+    def->enum_labels.push_back(L("Rectilinear"));
+    def->enum_labels.push_back(L("Concentric"));
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionEnum<SupportMaterialPattern>(smpRectilinear));
+
     def = this->add("support_material_spacing", coFloat);
     def->label = L("Pattern spacing");
     def->category = L("Support material");
diff --git a/src/libslic3r/PrintConfig.hpp b/src/libslic3r/PrintConfig.hpp
index aa63e723a6..f563163564 100644
--- a/src/libslic3r/PrintConfig.hpp
+++ b/src/libslic3r/PrintConfig.hpp
@@ -65,6 +65,10 @@ enum SupportMaterialPattern {
     smpRectilinear, smpRectilinearGrid, smpHoneycomb,
 };
 
+enum SupportMaterialInterfacePattern {
+    smipAuto, smipRectilinear, smipConcentric,
+};
+
 enum SeamPosition {
     spRandom, spNearest, spAligned, spRear
 };
@@ -207,6 +211,16 @@ template<> inline const t_config_enum_values& ConfigOptionEnum<SupportMaterialPa
     return keys_map;
 }
 
+template<> inline const t_config_enum_values& ConfigOptionEnum<SupportMaterialInterfacePattern>::get_enum_values() {
+    static t_config_enum_values keys_map;
+    if (keys_map.empty()) {
+        keys_map["auto"]                = smipAuto;
+        keys_map["rectilinear"]         = smipRectilinear;
+        keys_map["concentric"]          = smipConcentric;
+    }
+    return keys_map;
+}
+
 template<> inline const t_config_enum_values& ConfigOptionEnum<SeamPosition>::get_enum_values() {
     static t_config_enum_values keys_map;
     if (keys_map.empty()) {
@@ -499,6 +513,7 @@ public:
     ConfigOptionFloat               support_material_interface_spacing;
     ConfigOptionFloatOrPercent      support_material_interface_speed;
     ConfigOptionEnum<SupportMaterialPattern> support_material_pattern;
+    ConfigOptionEnum<SupportMaterialPattern> support_material_interface_pattern;
     // Spacing between support material lines (the hatching distance).
     ConfigOptionFloat               support_material_spacing;
     ConfigOptionFloat               support_material_speed;
@@ -547,6 +562,7 @@ protected:
         OPT_PTR(support_material_interface_spacing);
         OPT_PTR(support_material_interface_speed);
         OPT_PTR(support_material_pattern);
+        OPT_PTR(support_material_interface_pattern);
         OPT_PTR(support_material_spacing);
         OPT_PTR(support_material_speed);
         OPT_PTR(support_material_synchronize_layers);
diff --git a/src/libslic3r/PrintObject.cpp b/src/libslic3r/PrintObject.cpp
index 53403024e4..84fdf3f629 100644
--- a/src/libslic3r/PrintObject.cpp
+++ b/src/libslic3r/PrintObject.cpp
@@ -568,6 +568,7 @@ bool PrintObject::invalidate_state_by_config_options(
             || opt_key == "support_material_extruder"
             || opt_key == "support_material_extrusion_width"
             || opt_key == "support_material_interface_layers"
+            || opt_key == "support_material_interface_pattern"
             || opt_key == "support_material_interface_contact_loops"
             || opt_key == "support_material_interface_extruder"
             || opt_key == "support_material_interface_spacing"
diff --git a/src/libslic3r/SupportMaterial.cpp b/src/libslic3r/SupportMaterial.cpp
index ddd68238e0..cfc629e952 100644
--- a/src/libslic3r/SupportMaterial.cpp
+++ b/src/libslic3r/SupportMaterial.cpp
@@ -3573,9 +3573,15 @@ void PrintObjectSupportMaterial::generate_toolpaths(
     };
     std::vector<LayerCache>             layer_caches(support_layers.size(), LayerCache());
 
+
+    const auto fill_type_interface  = 
+        (m_object_config->support_material_interface_pattern == smipAuto && m_slicing_params.soluble_interface) ||
+         m_object_config->support_material_interface_pattern == smipConcentric ?
+         ipConcentric : ipRectilinear;
+
     tbb::parallel_for(tbb::blocked_range<size_t>(n_raft_layers, support_layers.size()),
         [this, &support_layers, &bottom_contacts, &top_contacts, &intermediate_layers, &interface_layers, &base_interface_layers, &layer_caches, &loop_interface_processor, 
-            infill_pattern, &bbox_object, support_density, interface_density, interface_angle, &angles, link_max_length_factor, with_sheath]
+            infill_pattern, &bbox_object, support_density, fill_type_interface, interface_density, interface_angle, &angles, link_max_length_factor, with_sheath]
             (const tbb::blocked_range<size_t>& range) {
         // Indices of the 1st layer in their respective container at the support layer height.
         size_t idx_layer_bottom_contact   = size_t(-1);
@@ -3583,7 +3589,6 @@ void PrintObjectSupportMaterial::generate_toolpaths(
         size_t idx_layer_intermediate     = size_t(-1);
         size_t idx_layer_interface        = size_t(-1);
         size_t idx_layer_base_interface   = size_t(-1);
-        const auto fill_type_interface    = m_slicing_params.soluble_interface ? ipConcentric : ipRectilinear;
         const auto fill_type_first_layer  = ipRectilinear;
         auto filler_interface       = std::unique_ptr<Fill>(Fill::new_from_type(fill_type_interface));
         // Filler for the 1st layer interface, if different from filler_interface.
diff --git a/src/slic3r/GUI/ConfigManipulation.cpp b/src/slic3r/GUI/ConfigManipulation.cpp
index 309dc57288..b7cff7c7fc 100644
--- a/src/slic3r/GUI/ConfigManipulation.cpp
+++ b/src/slic3r/GUI/ConfigManipulation.cpp
@@ -279,7 +279,8 @@ void ConfigManipulation::toggle_print_fff_options(DynamicPrintConfig* config)
     bool have_support_interface = config->opt_int("support_material_interface_layers") > 0;
     bool have_support_soluble = have_support_material && config->opt_float("support_material_contact_distance") == 0;
     for (auto el : { "support_material_pattern", "support_material_with_sheath",
-                    "support_material_spacing", "support_material_angle", "support_material_interface_layers",
+                    "support_material_spacing", "support_material_angle", 
+                    "support_material_interface_pattern", "support_material_interface_layers",
                     "dont_support_bridges", "support_material_extrusion_width", "support_material_contact_distance",
                     "support_material_xy_spacing" })
         toggle_field(el, have_support_material);
diff --git a/src/slic3r/GUI/Field.cpp b/src/slic3r/GUI/Field.cpp
index 02847c40de..7303f4d72d 100644
--- a/src/slic3r/GUI/Field.cpp
+++ b/src/slic3r/GUI/Field.cpp
@@ -1210,6 +1210,8 @@ boost::any& Choice::get_value()
 			m_value = static_cast<MachineLimitsUsage>(ret_enum);
 		else if (m_opt_id.compare("support_material_pattern") == 0)
 			m_value = static_cast<SupportMaterialPattern>(ret_enum);
+        else if (m_opt_id.compare("support_material_interface_pattern") == 0)
+            m_value = static_cast<SupportMaterialInterfacePattern>(ret_enum);
 		else if (m_opt_id.compare("seam_position") == 0)
 			m_value = static_cast<SeamPosition>(ret_enum);
 		else if (m_opt_id.compare("host_type") == 0)
diff --git a/src/slic3r/GUI/GUI.cpp b/src/slic3r/GUI/GUI.cpp
index dc81fde216..61ec4d2331 100644
--- a/src/slic3r/GUI/GUI.cpp
+++ b/src/slic3r/GUI/GUI.cpp
@@ -104,7 +104,8 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
             return;
         }
 
-		switch (config.def()->get(opt_key)->type) {
+        const ConfigOptionDef *opt_def = config.def()->get(opt_key);
+		switch (opt_def->type) {
 		case coFloatOrPercent:{
 			std::string str = boost::any_cast<std::string>(value);
 			bool percent = false;
@@ -176,6 +177,11 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
 			}
 			break;
 		case coEnum:{
+#if 0
+			auto *opt = opt_def->default_value.get()->clone();
+			opt->setInt(0);
+			config.set_key_value(opt_key, opt);
+#else
 			if (opt_key == "top_fill_pattern" ||
 				opt_key == "bottom_fill_pattern" ||
 				opt_key == "fill_pattern")
@@ -190,6 +196,8 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
 				config.set_key_value(opt_key, new ConfigOptionEnum<MachineLimitsUsage>(boost::any_cast<MachineLimitsUsage>(value)));
 			else if (opt_key.compare("support_material_pattern") == 0)
 				config.set_key_value(opt_key, new ConfigOptionEnum<SupportMaterialPattern>(boost::any_cast<SupportMaterialPattern>(value)));
+			else if (opt_key.compare("support_material_interface_pattern") == 0)
+				config.set_key_value(opt_key, new ConfigOptionEnum<SupportMaterialInterfacePattern>(boost::any_cast<SupportMaterialInterfacePattern>(value)));
 			else if (opt_key.compare("seam_position") == 0)
 				config.set_key_value(opt_key, new ConfigOptionEnum<SeamPosition>(boost::any_cast<SeamPosition>(value)));
 			else if (opt_key.compare("host_type") == 0)
@@ -203,6 +211,7 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
             else if(opt_key == "brim_type")
                 config.set_key_value(opt_key, new ConfigOptionEnum<BrimType>(boost::any_cast<BrimType>(value)));
 			}
+#endif
 			break;
 		case coPoints:{
 			if (opt_key == "bed_shape" || opt_key == "thumbnails") {
diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index 5e4dd87890..5247558c77 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -35,7 +35,7 @@ static SettingsBundle FREQ_SETTINGS_BUNDLE_FFF =
     { L("Layers and Perimeters"), { "layer_height" , "perimeters", "top_solid_layers", "bottom_solid_layers" } },
     { L("Infill")               , { "fill_density", "fill_pattern" } },
     { L("Support material")     , { "support_material", "support_material_auto", "support_material_threshold", 
-                                    "support_material_pattern", "support_material_buildplate_only",
+                                    "support_material_pattern", "support_material_interface_pattern", "support_material_buildplate_only",
                                     "support_material_spacing" } },
     { L("Wipe options")            , { "wipe_into_infill", "wipe_into_objects" } }
 };
diff --git a/src/slic3r/GUI/OptionsGroup.cpp b/src/slic3r/GUI/OptionsGroup.cpp
index 7509d40608..b87e2047d4 100644
--- a/src/slic3r/GUI/OptionsGroup.cpp
+++ b/src/slic3r/GUI/OptionsGroup.cpp
@@ -860,46 +860,8 @@ boost::any ConfigOptionsGroup::get_config_value(const DynamicPrintConfig& config
 	case coInts:
 		ret = config.opt_int(opt_key, idx);
 		break;
-	case coEnum:{
-		if (opt_key == "top_fill_pattern" ||
-			opt_key == "bottom_fill_pattern" ||
-			opt_key == "fill_pattern" ) {
-			ret = static_cast<int>(config.option<ConfigOptionEnum<InfillPattern>>(opt_key)->value);
-		}
-		else if (opt_key == "ironing_type") {
-			ret = static_cast<int>(config.option<ConfigOptionEnum<IroningType>>(opt_key)->value);
-		}
-        else if (opt_key == "fuzzy_skin") {
-            ret = static_cast<int>(config.option<ConfigOptionEnum<FuzzySkinType>>(opt_key)->value);
-        }
-		else if (opt_key == "gcode_flavor") {
-			ret = static_cast<int>(config.option<ConfigOptionEnum<GCodeFlavor>>(opt_key)->value);
-		}
-		else if (opt_key == "machine_limits_usage") {
-			ret = static_cast<int>(config.option<ConfigOptionEnum<MachineLimitsUsage>>(opt_key)->value);
-		}
-		else if (opt_key == "support_material_pattern") {
-			ret = static_cast<int>(config.option<ConfigOptionEnum<SupportMaterialPattern>>(opt_key)->value);
-		}
-		else if (opt_key == "seam_position") {
-			ret = static_cast<int>(config.option<ConfigOptionEnum<SeamPosition>>(opt_key)->value);
-		}
-		else if (opt_key == "host_type") {
-			ret = static_cast<int>(config.option<ConfigOptionEnum<PrintHostType>>(opt_key)->value);
-		}
-        else if (opt_key == "display_orientation") {
-            ret  = static_cast<int>(config.option<ConfigOptionEnum<SLADisplayOrientation>>(opt_key)->value);
-        }
-        else if (opt_key == "support_pillar_connection_mode") {
-            ret  = static_cast<int>(config.option<ConfigOptionEnum<SLAPillarConnectionMode>>(opt_key)->value);
-        }
-        else if (opt_key == "printhost_authorization_type") {
-            ret  = static_cast<int>(config.option<ConfigOptionEnum<AuthorizationType>>(opt_key)->value);
-        }
-        else if (opt_key == "brim_type") {
-            ret  = static_cast<int>(config.option<ConfigOptionEnum<BrimType>>(opt_key)->value);
-		}
-	}
+	case coEnum:
+        ret = config.option(opt_key)->getInt();
 		break;
 	case coPoints:
 		if (opt_key == "bed_shape")
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index fa1f31ab5d..374789815c 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -1511,6 +1511,7 @@ void TabPrint::build()
         optgroup->append_single_option_line("support_material_spacing", category_path + "pattern-spacing-0-inf");
         optgroup->append_single_option_line("support_material_angle", category_path + "pattern-angle");
         optgroup->append_single_option_line("support_material_interface_layers", category_path + "interface-layers");
+        optgroup->append_single_option_line("support_material_interface_pattern", category_path + "interface-pattern");
         optgroup->append_single_option_line("support_material_interface_spacing", category_path + "interface-pattern-spacing");
         optgroup->append_single_option_line("support_material_interface_contact_loops", category_path + "interface-loops");
         optgroup->append_single_option_line("support_material_buildplate_only", category_path + "support-on-build-plate-only");
diff --git a/src/slic3r/GUI/UnsavedChangesDialog.cpp b/src/slic3r/GUI/UnsavedChangesDialog.cpp
index 07a6fc7390..473f7e6e17 100644
--- a/src/slic3r/GUI/UnsavedChangesDialog.cpp
+++ b/src/slic3r/GUI/UnsavedChangesDialog.cpp
@@ -986,18 +986,17 @@ bool UnsavedChangesDialog::save(PresetCollection* dependent_presets)
     return true;
 }
 
-template<class T>
 wxString get_string_from_enum(const std::string& opt_key, const DynamicPrintConfig& config, bool is_infill = false)
 {
     const ConfigOptionDef& def = config.def()->options.at(opt_key);
     const std::vector<std::string>& names = def.enum_labels;//ConfigOptionEnum<T>::get_enum_names();
-    T val = config.option<ConfigOptionEnum<T>>(opt_key)->value;
+    int val = config.option(opt_key)->getInt();
 
     // Each infill doesn't use all list of infill declared in PrintConfig.hpp.
     // So we should "convert" val to the correct one
     if (is_infill) {
         for (auto key_val : *def.enum_keys_map)
-            if ((int)key_val.second == (int)val) {
+            if (int(key_val.second) == val) {
                 auto it = std::find(def.enum_values.begin(), def.enum_values.end(), key_val.first);
                 if (it == def.enum_values.end())
                     return "";
@@ -1005,7 +1004,7 @@ wxString get_string_from_enum(const std::string& opt_key, const DynamicPrintConf
             }
         return _L("Undef");
     }
-    return from_u8(_utf8(names[static_cast<int>(val)]));
+    return from_u8(_utf8(names[val]));
 }
 
 static size_t get_id_from_opt_key(std::string opt_key)
@@ -1128,27 +1127,10 @@ static wxString get_string_value(std::string opt_key, const DynamicPrintConfig&
         return out;
     }
     case coEnum: {
-        if (opt_key == "top_fill_pattern" ||
+        return get_string_from_enum(opt_key, config, 
+            opt_key == "top_fill_pattern" ||
             opt_key == "bottom_fill_pattern" ||
-            opt_key == "fill_pattern")
-            return get_string_from_enum<InfillPattern>(opt_key, config, true);
-        if (opt_key == "gcode_flavor")
-            return get_string_from_enum<GCodeFlavor>(opt_key, config);
-        if (opt_key == "machine_limits_usage")
-            return get_string_from_enum<MachineLimitsUsage>(opt_key, config);
-        if (opt_key == "ironing_type")
-            return get_string_from_enum<IroningType>(opt_key, config);
-        if (opt_key == "support_material_pattern")
-            return get_string_from_enum<SupportMaterialPattern>(opt_key, config);
-        if (opt_key == "seam_position")
-            return get_string_from_enum<SeamPosition>(opt_key, config);
-        if (opt_key == "display_orientation")
-            return get_string_from_enum<SLADisplayOrientation>(opt_key, config);
-        if (opt_key == "support_pillar_connection_mode")
-            return get_string_from_enum<SLAPillarConnectionMode>(opt_key, config);
-        if (opt_key == "brim_type")
-            return get_string_from_enum<BrimType>(opt_key, config);
-        break;
+            opt_key == "fill_pattern");
     }
     case coPoints: {
         if (opt_key == "bed_shape") {

From 6bdd42b1cfd34fe4171d24c5c59260d1aa9b12bf Mon Sep 17 00:00:00 2001
From: Vojtech Bubnik <bubnikv@gmail.com>
Date: Wed, 24 Feb 2021 17:34:51 +0100
Subject: [PATCH 3/8] Fix of Support interface is generated across whole print
 layer regardless if it's needed or not #4570 Disabled a suspicious piece of
 legacy code inherited from Slic3r, which tries to fill in spots inside
 support interfaces. The code was too aggressive and it was doing more harm
 than good.

---
 src/libslic3r/SupportMaterial.cpp | 33 +++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/src/libslic3r/SupportMaterial.cpp b/src/libslic3r/SupportMaterial.cpp
index cfc629e952..b77d81219d 100644
--- a/src/libslic3r/SupportMaterial.cpp
+++ b/src/libslic3r/SupportMaterial.cpp
@@ -572,6 +572,33 @@ void PrintObjectSupportMaterial::generate(PrintObject &object)
 
     BOOST_LOG_TRIVIAL(info) << "Support generator - Generating tool paths";
 
+#if 0 // #ifdef SLIC3R_DEBUG
+    {
+        size_t layer_id = 0;
+        for (int i = 0; i < int(layers_sorted.size());) {
+            // Find the last layer with roughly the same print_z, find the minimum layer height of all.
+            // Due to the floating point inaccuracies, the print_z may not be the same even if in theory they should.
+            int j = i + 1;
+            coordf_t zmax = layers_sorted[i]->print_z + EPSILON;
+            bool empty = true;
+            for (; j < layers_sorted.size() && layers_sorted[j]->print_z <= zmax; ++j)
+                if (!layers_sorted[j]->polygons.empty())
+                    empty = false;
+            if (!empty) {
+                export_print_z_polygons_to_svg(
+                    debug_out_path("support-%d-%lf-before.svg", iRun, layers_sorted[i]->print_z).c_str(),
+                    layers_sorted.data() + i, j - i);
+                export_print_z_polygons_and_extrusions_to_svg(
+                    debug_out_path("support-w-fills-%d-%lf-before.svg", iRun, layers_sorted[i]->print_z).c_str(),
+                    layers_sorted.data() + i, j - i,
+                    *object.support_layers()[layer_id]);
+                ++layer_id;
+            }
+            i = j;
+        }
+    }
+#endif /* SLIC3R_DEBUG */
+
     // Generate the actual toolpaths and save them into each layer.
     this->generate_toolpaths(object.support_layers(), raft_layers, bottom_contacts, top_contacts, intermediate_layers, interface_layers, base_interface_layers);
 
@@ -3657,21 +3684,23 @@ void PrintObjectSupportMaterial::generate_toolpaths(
                     top_contact_layer.merge(std::move(interface_layer));
             } 
 
+#if 0
             if ( ! interface_layer.empty() && ! base_layer.empty()) {
                 // turn base support into interface when it's contained in our holes
                 // (this way we get wider interface anchoring)
-                //FIXME one wants to fill in the inner most holes of the interfaces, not all the holes.
+                //FIXME The intention of the code below is unclear. One likely wanted to just merge small islands of base layers filling in the holes
+                // inside interface layers, but the code below fills just too much, see GH #4570
                 Polygons islands = top_level_islands(interface_layer.layer->polygons);
                 polygons_append(interface_layer.layer->polygons, intersection(base_layer.layer->polygons, islands));
                 base_layer.layer->polygons = diff(base_layer.layer->polygons, islands);
             }
+#endif
 
             // Top and bottom contacts, interface layers.
             for (size_t i = 0; i < 3; ++ i) {
                 MyLayerExtruded &layer_ex = (i == 0) ? top_contact_layer : (i == 1 ? bottom_contact_layer : interface_layer);
                 if (layer_ex.empty() || layer_ex.polygons_to_extrude().empty())
                     continue;
-                //FIXME When paralellizing, each thread shall have its own copy of the fillers.
                 bool interface_as_base = (&layer_ex == &interface_layer) && m_object_config->support_material_interface_layers.value == 0;
                 //FIXME Bottom interfaces are extruded with the briding flow. Some bridging layers have its height slightly reduced, therefore
                 // the bridging flow does not quite apply. Reduce the flow to area of an ellipse? (A = pi * a * b)

From e9875f57a9cdcd32d6244dd38200078f5c2a905c Mon Sep 17 00:00:00 2001
From: Vojtech Bubnik <bubnikv@gmail.com>
Date: Wed, 24 Feb 2021 18:08:32 +0100
Subject: [PATCH 4/8] Fix of Unnecessary raft on models with large perimeter
 but nothing inside. #430 Don't fill in the holes in 1st layer of the raft.
 The user may apply a higher raft_expansion if one wants a better 1st layer
 adhesion.

---
 src/libslic3r/SupportMaterial.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/libslic3r/SupportMaterial.cpp b/src/libslic3r/SupportMaterial.cpp
index b77d81219d..cbe9ffb1b6 100644
--- a/src/libslic3r/SupportMaterial.cpp
+++ b/src/libslic3r/SupportMaterial.cpp
@@ -1371,8 +1371,13 @@ PrintObjectSupportMaterial::MyLayersPtr PrintObjectSupportMaterial::top_contact_
                 if (layer_id == 0) {
                     // This is the first object layer, so the object is being printed on a raft and
                     // we're here just to get the object footprint for the raft.
-                    // We only consider contours and discard holes to get a more continuous raft.
+#if 0
+                    // The following line was filling excessive holes in the raft, see GH #430
                     overhang_polygons = collect_slices_outer(layer);
+#else
+                    // Don't fill in the holes. The user may apply a higher raft_expansion if one wants a better 1st layer adhesion.
+                    overhang_polygons = to_polygons(layer.lslices);
+#endif
                     // Expand for better stability.
                     contact_polygons = offset(overhang_polygons, scaled<float>(m_object_config->raft_expansion.value));
                 } else {

From 34417574f5a823994b0e16beb97d2bac877ecf6f Mon Sep 17 00:00:00 2001
From: Vojtech Bubnik <bubnikv@gmail.com>
Date: Wed, 24 Feb 2021 18:48:55 +0100
Subject: [PATCH 5/8] Fix of Perl combine infill unit test after a change in
 raft: 1st object layer over raft is no more printed with bridging infill.

---
 t/combineinfill.t | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/t/combineinfill.t b/t/combineinfill.t
index 282bf467ac..925e5b11d4 100644
--- a/t/combineinfill.t
+++ b/t/combineinfill.t
@@ -43,9 +43,11 @@ plan tests => 8;
         my $layers_with_infill = grep $_ > 0,  values %layer_infill;
         is scalar(keys %layers), $layers_with_perimeters+$config->raft_layers, 'expected number of layers';
         
-        # first infill layer is never combined, so we don't consider it
-        $layers_with_infill--;
-        $layers_with_perimeters--;
+        if ($config->raft_layers == 0) {
+            # first infill layer printed directly on print bed is not combined, so we don't consider it.
+            $layers_with_infill--;
+            $layers_with_perimeters--;
+        }
         
         # we expect that infill is generated for half the number of combined layers
         # plus for each single layer that was not combined (remainder)

From 539e80e890abcdd7c19233339f577e1833f203d4 Mon Sep 17 00:00:00 2001
From: Vojtech Bubnik <bubnikv@gmail.com>
Date: Wed, 24 Feb 2021 19:49:38 +0100
Subject: [PATCH 6/8] Fix of supports create overkill material that actually
 sopports nothing above it. #2245 When expanding the 1st layer support layer,
 do it by small steps while trimming with object to avoid supports to leak
 through object walls.

---
 src/libslic3r/SupportMaterial.cpp | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/libslic3r/SupportMaterial.cpp b/src/libslic3r/SupportMaterial.cpp
index cbe9ffb1b6..d9efd75537 100644
--- a/src/libslic3r/SupportMaterial.cpp
+++ b/src/libslic3r/SupportMaterial.cpp
@@ -2643,9 +2643,18 @@ PrintObjectSupportMaterial::MyLayersPtr PrintObjectSupportMaterial::generate_raf
         }
     } else if (columns_base != nullptr) {
         // Expand the bases of the support columns in the 1st layer.
-        columns_base->polygons = diff(
-            inflate_factor_1st_layer > 0 ? offset(columns_base->polygons, inflate_factor_1st_layer) : columns_base->polygons,
-            offset(m_object->layers().front()->lslices, (float)scale_(m_gap_xy), SUPPORT_SURFACES_OFFSET_PARAMETERS));
+        {
+            Polygons &raft     = columns_base->polygons;
+            Polygons  trimming = offset(m_object->layers().front()->lslices, (float)scale_(m_gap_xy), SUPPORT_SURFACES_OFFSET_PARAMETERS);
+            if (inflate_factor_1st_layer > SCALED_EPSILON) {
+                // Inflate in multiple steps to avoid leaking of the support 1st layer through object walls.
+                auto  nsteps = std::max(5, int(ceil(inflate_factor_1st_layer / m_first_layer_flow.scaled_width())));
+                float step   = inflate_factor_1st_layer / nsteps;
+                for (int i = 0; i < nsteps; ++ i)
+                    raft = diff(offset(raft, step), trimming);
+            } else
+                raft = diff(raft, trimming);
+        }
         if (contacts != nullptr)
             columns_base->polygons = diff(columns_base->polygons, interface_polygons);
         if (! brim.empty()) {

From 6f5bf71f11b989e056ef8e31ff811548443085c2 Mon Sep 17 00:00:00 2001
From: Vojtech Bubnik <bubnikv@gmail.com>
Date: Wed, 24 Feb 2021 19:53:50 +0100
Subject: [PATCH 7/8] Fixing some compiler warnings

---
 src/libslic3r/PrintConfig.hpp | 2 +-
 src/slic3r/GUI/Tab.cpp        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libslic3r/PrintConfig.hpp b/src/libslic3r/PrintConfig.hpp
index f563163564..c1e3f82cbe 100644
--- a/src/libslic3r/PrintConfig.hpp
+++ b/src/libslic3r/PrintConfig.hpp
@@ -513,7 +513,7 @@ public:
     ConfigOptionFloat               support_material_interface_spacing;
     ConfigOptionFloatOrPercent      support_material_interface_speed;
     ConfigOptionEnum<SupportMaterialPattern> support_material_pattern;
-    ConfigOptionEnum<SupportMaterialPattern> support_material_interface_pattern;
+    ConfigOptionEnum<SupportMaterialInterfacePattern> support_material_interface_pattern;
     // Spacing between support material lines (the hatching distance).
     ConfigOptionFloat               support_material_spacing;
     ConfigOptionFloat               support_material_speed;
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index 374789815c..947c058a4e 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -3834,7 +3834,7 @@ bool Tab::validate_custom_gcodes()
 {
     bool valid = true;
     if ((m_type == Preset::TYPE_FILAMENT || 
-        m_type == Preset::TYPE_PRINTER && static_cast<TabPrinter*>(this)->m_printer_technology == ptFFF) &&
+        (m_type == Preset::TYPE_PRINTER && static_cast<TabPrinter*>(this)->m_printer_technology == ptFFF)) &&
         m_active_page->title() == "Custom G-code") {
             for (auto opt_group : m_active_page->m_optgroups) {
                 assert(opt_group->opt_map().size() == 1);

From 1e33b95ed71fcee14197501cabc43c6c24dbc68b Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Thu, 25 Feb 2021 08:23:45 +0100
Subject: [PATCH 8/8] Follow-up of 33aa6be7b7f3d8b81d6b948f9bd6841db10b61cf ->
 Validation of custom g-code added using vertical slider in preview at gcode
 generation level

---
 src/libslic3r/GCode.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index f3bffe3316..c7b2c8f784 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -667,6 +667,14 @@ namespace DoExport {
                     break;
             }
         }
+        if (ret.size() < MAX_TAGS_COUNT) {
+            const CustomGCode::Info& custom_gcode_per_print_z = print.model().custom_gcode_per_print_z;
+            for (const auto& gcode : custom_gcode_per_print_z.gcodes) {
+                check(_(L("Custom G-code")), gcode.extra);
+                if (ret.size() == MAX_TAGS_COUNT)
+                    break;
+            }
+        }
 
         return ret;
     }