ENH: Add limited filament maps to slice info

jira: none
Change-Id: I7b08943ba5f4e7fa9be18ba3f64caee182888d45
(cherry picked from commit 85ebb469959499d5c2d7fe349e0d8e92045c9fab)

src/libslic3r/Format/bbs_3mf.cpp

@@ -294,6 +294,7 @@ static constexpr const char* OTHER_LAYERS_PRINT_SEQUENCE_NUMS_ATTR = "other_laye
 static constexpr const char* SPIRAL_VASE_MODE = "spiral_mode";
 static constexpr const char* FILAMENT_MAP_MODE_ATTR = "filament_map_mode";
 static constexpr const char* FILAMENT_MAP_ATTR = "filament_maps";
+static constexpr const char* LIMIT_FILAMENT_MAP_ATTR = "limit_filament_maps";
 static constexpr const char* GCODE_FILE_ATTR = "gcode_file";
 static constexpr const char* THUMBNAIL_FILE_ATTR = "thumbnail_file";
 static constexpr const char* NO_LIGHT_THUMBNAIL_FILE_ATTR = "thumbnail_no_light_file";
@@ -7864,6 +7865,12 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
                 add_vector<int>(stream, plate_data->filament_maps);
                 stream << "\"/>\n";
 
+                if (plate_data->limit_filament_maps.size() > 0) {
+                    stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << LIMIT_FILAMENT_MAP_ATTR << "\" " << VALUE_ATTR << "=\"";
+                    add_vector<int>(stream, plate_data->limit_filament_maps);
+                    stream << "\"/>\n";
+                }
+
                 for (auto it = plate_data->objects_and_instances.begin(); it != plate_data->objects_and_instances.end(); it++)
                 {
                         int obj_id = it->first;

src/libslic3r/Format/bbs_3mf.hpp

@@ -94,7 +94,14 @@ struct PlateData
     bool            toolpath_outside {false};
     bool            is_label_object_enabled {false};
     int             timelapse_warning_code = 0; // 1<<0 sprial vase, 1<<1 by object
-    std::vector<int>          filament_maps;
+    std::vector<int>          filament_maps;   // 1 base
+
+    // Hexadecimal number,
+    // the 0th digit corresponds to extruder 1
+    // the 1th digit corresponds to extruder 2
+    // ...  and so on.
+    // 0 means can be print on this extruder, 1 means cannot
+    std::vector<int>          limit_filament_maps;
 
     std::vector<GCodeProcessorResult::SliceWarning> warnings;
 

src/libslic3r/GCode/GCodeProcessor.cpp

@@ -699,8 +699,11 @@ GCodeProcessor::GCodeProcessor()
 
 bool GCodeProcessor::check_multi_extruder_gcode_valid(const std::vector<Polygons> &unprintable_areas, const std::vector<int> &filament_map)
 {
+    m_result.limit_filament_maps.clear();
     m_result.gcode_check_result.reset();
 
+    m_result.limit_filament_maps.resize(filament_map.size(), 0);
+
     auto to_2d = [](const Vec3d &pos) -> Point {
         Point ps(scale_(pos.x()), scale_(pos.y()));
         return ps;
@@ -735,6 +738,15 @@ bool GCodeProcessor::check_multi_extruder_gcode_valid(const std::vector<Polygons
             }
         }
 
+        for (int i = 0; i < unprintable_areas.size(); ++i) {
+            for (const Polygon &poly : unprintable_areas[i]) {
+                if (!poly.bounding_box().overlap(bbox))
+                    continue;
+
+                m_result.limit_filament_maps[iter->first] |= (1 << i);
+            }
+        }
+
         /*
         // Accurate calculation is not efficient
         for (const Polygon& poly : unprintable_areas[extruder_id]) {

src/libslic3r/GCode/GCodeProcessor.hpp

@@ -233,6 +233,7 @@ class Print;
         std::vector<float> filament_costs;
         std::vector<int> filament_vitrification_temperature;
         std::vector<int>   filament_maps;
+        std::vector<int>   limit_filament_maps;
         PrintEstimatedStatistics print_statistics;
         std::vector<CustomGCode::Item> custom_gcode_per_print_z;
         std::vector<std::pair<float, std::pair<size_t, size_t>>> spiral_vase_layers;
@@ -273,6 +274,7 @@ class Print;
             warnings = other.warnings;
             bed_type = other.bed_type;
             gcode_check_result = other.gcode_check_result;
+            limit_filament_maps = other.limit_filament_maps;
             filament_printable_reuslt = other.filament_printable_reuslt;
 #if ENABLE_GCODE_VIEWER_STATISTICS
             time = other.time;

src/slic3r/GUI/PartPlate.cpp

@@ -5474,6 +5474,7 @@ int PartPlateList::store_to_3mf_structure(PlateDataPtrs& plate_data_list, bool w
                     plate_data_item->timelapse_warning_code = m_plate_list[i]->m_gcode_result->timelapse_warning_code;
                     m_plate_list[i]->set_timelapse_warning_code(plate_data_item->timelapse_warning_code);
 					plate_data_item->is_label_object_enabled = m_plate_list[i]->m_gcode_result->label_object_enabled;
+                    plate_data_item->limit_filament_maps = m_plate_list[i]->m_gcode_result->limit_filament_maps;
 					Print *print                      = nullptr;
 					m_plate_list[i]->get_print((PrintBase **) &print, nullptr, nullptr);
 					if (print) {
@@ -5550,6 +5551,7 @@ int PartPlateList::load_from_3mf_structure(PlateDataPtrs& plate_data_list, int f
         m_plate_list[index]->set_timelapse_warning_code(plate_data_list[i]->timelapse_warning_code);
 		m_plate_list[index]->slice_filaments_info = plate_data_list[i]->slice_filaments_info;
 		gcode_result->warnings = plate_data_list[i]->warnings;
+        gcode_result->filament_maps = plate_data_list[i]->filament_maps;
 		if (m_plater && !plate_data_list[i]->thumbnail_file.empty()) {
 			BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": plate %1%, load thumbnail from %2%.")%(i+1) %plate_data_list[i]->thumbnail_file;
 			if (boost::filesystem::exists(plate_data_list[i]->thumbnail_file)) {