SS port - Change extrusion role gcode (#2459)

implement custom gcode for when the extrusion role is changed

Co-authored-by: supermerill <merill@free.fr>

src/libslic3r/GCode.cpp

@@ -1402,6 +1402,8 @@ namespace DoExport {
         //BBS
         //if (ret.size() < MAX_TAGS_COUNT) check(_(L("Printing by object G-code")), config.printing_by_object_gcode.value);
         //if (ret.size() < MAX_TAGS_COUNT) check(_(L("Color Change G-code")), config.color_change_gcode.value);
+        //Orca
+        if (ret.size() < MAX_TAGS_COUNT) check(_(L("Change extrusion role G-code")), config.change_extrusion_role_gcode.value);
         if (ret.size() < MAX_TAGS_COUNT) check(_(L("Pause G-code")), config.machine_pause_gcode.value);
         if (ret.size() < MAX_TAGS_COUNT) check(_(L("Template Custom G-code")), config.template_custom_gcode.value);
         if (ret.size() < MAX_TAGS_COUNT) {
@@ -4755,6 +4757,18 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
 
     double F = speed * 60;  // convert mm/sec to mm/min
 
+    //Orca: process custom gcode for extrusion role change
+    if (path.role() != m_last_extrusion_role && !m_config.change_extrusion_role_gcode.value.empty()) {
+            DynamicConfig config;
+            config.set_key_value("extrusion_role", new ConfigOptionString(extrusion_role_to_string_for_parser(path.role())));
+            config.set_key_value("last_extrusion_role", new ConfigOptionString(extrusion_role_to_string_for_parser(m_last_extrusion_role)));
+            config.set_key_value("layer_num", new ConfigOptionInt(m_layer_index + 1));
+            config.set_key_value("layer_z", new ConfigOptionFloat(m_layer == nullptr ? m_last_height : m_layer->print_z));
+            gcode += this->placeholder_parser_process("change_extrusion_role_gcode",
+                                                      m_config.change_extrusion_role_gcode.value, m_writer.extruder()->id(), &config)
+                     + "\n";
+    }
+
     // extrude arc or line
     if (m_enable_extrusion_role_markers) {
         if (path.role() != m_last_extrusion_role) {
@@ -5002,6 +5016,35 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
     return gcode;
 }
 
+//Orca: get string name of extrusion role. used for change_extruder_role_gcode
+std::string GCode::extrusion_role_to_string_for_parser(const ExtrusionRole & role)
+{
+    switch (role) {
+        case erPerimeter: return "Perimeter";
+        case erExternalPerimeter: return "ExternalPerimeter";
+        case erOverhangPerimeter: return "OverhangPerimeter";
+        case erInternalInfill: return "InternalInfill";
+        case erSolidInfill: return "SolidInfill";
+        case erTopSolidInfill: return "TopSolidInfill";
+        case erBottomSurface: return "BottomSurface";
+        case erBridgeInfill:
+        case erInternalBridgeInfill: return "BridgeInfill";
+        case erGapFill: return "GapFill";
+        case erIroning: return "Ironing";
+        case erSkirt: return "Skirt";
+        case erBrim: return "Brim";
+        case erSupportMaterial: return "SupportMaterial";
+        case erSupportMaterialInterface: return "SupportMaterialInterface";
+        case erSupportTransition: return "SupportTransition";
+        case erWipeTower: return "WipeTower";
+        case erCustom:
+        case erMixed:
+        case erCount:
+        case erNone:
+        default: return "Mixed";
+    }
+}
+
 std::string encodeBase64(uint64_t value)
 {
     //Always use big endian mode

src/libslic3r/GCode.hpp

@@ -205,6 +205,7 @@ public:
     // inside the generated string and after the G-code export finishes.
     std::string     placeholder_parser_process(const std::string &name, const std::string &templ, unsigned int current_extruder_id, const DynamicConfig *config_override = nullptr);
     bool            enable_cooling_markers() const { return m_enable_cooling_markers; }
+    std::string     extrusion_role_to_string_for_parser(const ExtrusionRole &);
 
     // For Perl bindings, to be used exclusively by unit tests.
     unsigned int    layer_count() const { return m_layer_count; }

src/libslic3r/Preset.cpp

@@ -819,7 +819,7 @@ static std::vector<std::string> s_Preset_printer_options {
     "printer_technology",
     "printable_area", "bed_exclude_area","bed_custom_texture", "bed_custom_model", "gcode_flavor",
     "fan_kickstart", "fan_speedup_time", "fan_speedup_overhangs",
-    "single_extruder_multi_material", "manual_filament_change", "machine_start_gcode", "machine_end_gcode", "before_layer_change_gcode", "layer_change_gcode", "time_lapse_gcode", "change_filament_gcode",
+    "single_extruder_multi_material", "manual_filament_change", "machine_start_gcode", "machine_end_gcode", "before_layer_change_gcode", "layer_change_gcode", "time_lapse_gcode", "change_filament_gcode", "change_extrusion_role_gcode",
     "printer_model", "printer_variant", "printable_height", "extruder_clearance_radius", "extruder_clearance_height_to_lid", "extruder_clearance_height_to_rod",
     "default_print_profile", "inherits",
     "silent_mode",

src/libslic3r/PrintConfig.cpp

@@ -3970,6 +3970,15 @@ def = this->add("filament_loading_speed", coFloats);
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionString(""));
 
+    def = this->add("change_extrusion_role_gcode", coString);
+    def->label = L("Change extrusion role G-code");
+    def->tooltip = L("This gcode is inserted when the extrusion role is changed");
+    def->multiline = true;
+    def->full_width = true;
+    def->height = 5;
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionString(""));
+
     def = this->add("top_surface_line_width", coFloatOrPercent);
     def->label = L("Top surface");
     def->category = L("Quality");

src/libslic3r/PrintConfig.hpp

@@ -969,6 +969,7 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionBool,                single_extruder_multi_material_priming))
     ((ConfigOptionBool,                wipe_tower_no_sparse_layers))
     ((ConfigOptionString,              change_filament_gcode))
+    ((ConfigOptionString,              change_extrusion_role_gcode))
     ((ConfigOptionFloat,               travel_speed))
     ((ConfigOptionFloat,               travel_speed_z))
     ((ConfigOptionBool,                silent_mode))

src/slic3r/GUI/Tab.cpp

@@ -3231,6 +3231,17 @@ void TabPrinter::build_fff()
         option.opt.height = gcode_field_height;//150;
         optgroup->append_single_option_line(option);
 
+        optgroup = page->new_optgroup(L("Change extrusion role G-code"), L"param_gcode", 0);
+        optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
+            validate_custom_gcode_cb(this, optgroup, opt_key, value);
+        };
+
+        option = optgroup->get_option("change_extrusion_role_gcode");
+        option.opt.full_width = true;
+        option.opt.is_code = true;
+        option.opt.height = gcode_field_height;//150;
+        optgroup->append_single_option_line(option);
+
         optgroup = page->new_optgroup(L("Pause G-code"), L"param_gcode", 0);
         optgroup->m_on_change = [this, optgroup](const t_config_option_key& opt_key, const boost::any& value) {
             validate_custom_gcode_cb(this, optgroup, opt_key, value);