#224 setting to force one skirt with complete_objects

resources/ui_layout/print.ui

@@ -260,6 +260,7 @@ group:Plater
 	setting:duplicate_distance
 group:Sequential printing
 	setting:complete_objects
+	setting:complete_objects_one_skirt
 	line:Extruder clearance (mm)
 		setting:width$6:extruder_clearance_radius
 		setting:width$6:extruder_clearance_height

src/libslic3r/Print.cpp

@@ -172,6 +172,7 @@ bool Print::invalidate_state_by_config_options(const std::vector<t_config_option
             || opt_key == "draft_shield"
             || opt_key == "skirt_distance"
             || opt_key == "min_skirt_length"
+			|| opt_key == "complete_objects_one_skirt"
             || opt_key == "ooze_prevention"
             || opt_key == "wipe_tower_x"
             || opt_key == "wipe_tower_y"
@@ -1646,7 +1647,7 @@ void Print::process()
         }
         if (this->has_skirt()) {
             this->set_status(88, L("Generating skirt"));
-            if (config().complete_objects){
+            if (config().complete_objects && !config().complete_objects_one_skirt){
                 for (PrintObject *obj : m_objects){
                     //create a skirt "pattern" (one per object)
                     const std::vector<PrintInstance> copies{ obj->instances() };

src/libslic3r/PrintConfig.cpp

@@ -434,9 +434,17 @@ void PrintConfigDef::init_fff_params()
     def->label = L("Complete individual objects");
     def->category = OptionCategory::output;
     def->tooltip = L("When printing multiple objects or copies, this feature will complete "
-                   "each object before moving onto next one (and starting it from its bottom layer). "
-                   "This feature is useful to avoid the risk of ruined prints. "
-                   "Slic3r should warn and prevent you from extruder collisions, but beware.");
+        "each object before moving onto next one (and starting it from its bottom layer). "
+        "This feature is useful to avoid the risk of ruined prints. "
+        "Slic3r should warn and prevent you from extruder collisions, but beware.");
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionBool(false));
+
+    def = this->add("complete_objects_one_skirt", coBool);
+    def->label = L("Allow only one skirt loop");
+    def->category = OptionCategory::output;
+    def->tooltip = L("When using 'Complete individual objects', the default behavior is to draw the skirt around each object."
+        " if you prefer to have only one skirt for the whole plater, use this option.");
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionBool(false));
 

src/libslic3r/PrintConfig.hpp

@@ -975,6 +975,7 @@ class PrintConfig : public MachineEnvelopeConfig, public GCodeConfig
     ConfigOptionInts                bridge_fan_speed;
     ConfigOptionInts                chamber_temperature;
     ConfigOptionBool                complete_objects;
+    ConfigOptionBool                complete_objects_one_skirt;
     ConfigOptionFloats              colorprint_heights;
     ConfigOptionBools               cooling;
     ConfigOptionFloat               default_acceleration;
@@ -1053,6 +1054,7 @@ class PrintConfig : public MachineEnvelopeConfig, public GCodeConfig
         OPT_PTR(bridge_fan_speed);
         OPT_PTR(chamber_temperature);
         OPT_PTR(complete_objects);
+        OPT_PTR(complete_objects_one_skirt);
         OPT_PTR(colorprint_heights);
         OPT_PTR(cooling);
         OPT_PTR(default_acceleration);

src/slic3r/GUI/ConfigManipulation.cpp

@@ -396,7 +396,7 @@ void ConfigManipulation::toggle_print_fff_options(DynamicPrintConfig* config)
     toggle_field("support_material_speed", have_support_material || have_brim || have_skirt);
 
     bool have_sequential_printing = config->opt_bool("complete_objects");
-    for (auto el : { "extruder_clearance_radius", "extruder_clearance_height" })
+    for (auto el : { "extruder_clearance_radius", "extruder_clearance_height", "complete_objects_one_skirt" })
         toggle_field(el, have_sequential_printing);
 
     bool have_ooze_prevention = config->opt_bool("ooze_prevention");

src/slic3r/GUI/Plater.cpp

@@ -2034,7 +2034,10 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
     : q(q)
     , main_frame(main_frame)
     , config(Slic3r::DynamicPrintConfig::new_from_defaults_keys({
-        "bed_shape", "bed_custom_texture", "bed_custom_model", "complete_objects", "duplicate_distance", "extruder_clearance_radius", "skirts", "skirt_distance",
+        "bed_shape", "bed_custom_texture", "bed_custom_model", 
+        "complete_objects",
+        "complete_objects_one_skirt",
+        "duplicate_distance", "extruder_clearance_radius", "skirts", "skirt_distance",
         "brim_width", "variable_layer_height", "serial_port", "serial_speed", "host_type", "print_host",
         "printhost_apikey", "printhost_cafile", "nozzle_diameter", "single_extruder_multi_material",
         "wipe_tower", "wipe_tower_x", "wipe_tower_y", "wipe_tower_width", "wipe_tower_rotation_angle",

src/slic3r/GUI/Preset.cpp

@@ -478,7 +478,10 @@ const std::vector<std::string>& Preset::print_options()
         , "support_material_contact_distance_type"
         , "support_material_contact_distance_top"
         , "support_material_contact_distance_bottom" 
-        , "support_material_buildplate_only", "dont_support_bridges", "notes", "complete_objects", "extruder_clearance_radius", 
+        , "support_material_buildplate_only", "dont_support_bridges", "notes", 
+        "complete_objects",
+        "complete_objects_one_skirt",
+        "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", 
         "ooze_prevention", "standby_temperature_delta", "interface_shells", "extrusion_width", "first_layer_extrusion_width",