ENH: support thumbnail in gcode for 3rd printers

Thanks @slynn1324
1. Add thumbnail size in printer params page
2. Optimize writing thumbnail data in gcode

jira:STUDIO-3942
Github: #2166
Github pull request: #2333

Change-Id: I6897cfddfa6a1b0c95decf67329a486d40ec0cc2

src/libslic3r/GCode.cpp

@@ -1293,16 +1293,13 @@ namespace DoExport {
 	                    output((boost::format("; thumbnail begin %dx%d %d\n") % data.width % data.height % encoded.size()).str().c_str());
 
 	                    unsigned int row_count = 0;
-	                    while (encoded.size() > max_row_length)
-	                    {
-	                        output((boost::format("; %s\n") % encoded.substr(0, max_row_length)).str().c_str());
-	                        encoded = encoded.substr(max_row_length);
+	                    //BBS: optimize performance ,reduce too much memeory operation 
+	                    size_t current_index = 0;
+	                    while(current_index<encoded.size()){
+	                        output((boost::format("; %s\n") % encoded.substr(current_index, max_row_length)).str().c_str());
+	                        current_index+=std::min(max_row_length,encoded.size()-current_index);
 	                        ++row_count;
 	                    }
-
-	                    if (encoded.size() > 0)
-	                    	output((boost::format("; %s\n") % encoded).str().c_str());
-
 	                    output("; thumbnail end\n");
                         output("; THUMBNAIL_BLOCK_END\n\n");
 
@@ -1563,10 +1560,11 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     }
 
     //BBS: add plate id into thumbnail render logic
-    //DoExport::export_thumbnails_to_file(thumbnail_cb, print.get_plate_index(), THUMBNAIL_SIZE,
-    //    [&file](const char* sz) { file.write(sz); },
-    //    [&print]() { print.throw_if_canceled(); });
-
+    if(!print.is_BBL_Printer()){
+        DoExport::export_thumbnails_to_file(thumbnail_cb, print.get_plate_index(), print.full_print_config().option<ConfigOptionPoints>("thumbnail_size")->values,
+            [&file](const char* sz) { file.write(sz); },
+            [&print]() { print.throw_if_canceled(); });
+    }
 
     // Write some terse information on the slicing parameters.
     const PrintObject *first_object         = print.objects().front();

src/libslic3r/Preset.cpp

@@ -852,7 +852,7 @@ static std::vector<std::string> s_Preset_printer_options {
     "silent_mode",
     // BBS
     "scan_first_layer", "machine_load_filament_time", "machine_unload_filament_time", "machine_pause_gcode", "template_custom_gcode",
-    "nozzle_type","auxiliary_fan", "nozzle_volume","upward_compatible_machine", "z_hop_types","support_chamber_temp_control","support_air_filtration","printer_structure",
+    "nozzle_type","auxiliary_fan", "nozzle_volume","upward_compatible_machine", "z_hop_types","support_chamber_temp_control","support_air_filtration","printer_structure","thumbnail_size",
     //OrcaSlicer
     "host_type", "print_host", "printhost_apikey",
     "print_host_webui",
@@ -2365,7 +2365,7 @@ inline t_config_option_keys deep_diff(const ConfigBase &config_this, const Confi
         if (this_opt != nullptr && other_opt != nullptr && *this_opt != *other_opt)
         {
             //BBS: add bed_exclude_area
-            if (opt_key == "printable_area" || opt_key == "bed_exclude_area" || opt_key == "compatible_prints" || opt_key == "compatible_printers") {
+            if (opt_key == "printable_area" || opt_key == "bed_exclude_area" || opt_key == "compatible_prints" || opt_key == "compatible_printers"|| opt_key == "thumbnail_size") {
                 // Scalar variable, or a vector variable, which is independent from number of extruders,
                 // thus the vector is presented to the user as a single input.
                 diff.emplace_back(opt_key);

src/libslic3r/PresetBundle.cpp

@@ -88,7 +88,7 @@ PresetBundle::PresetBundle()
     for (size_t i = 0; i < 1; ++i) {
         // The following ugly switch is to avoid printers.preset(0) to return the edited instance, as the 0th default is the current one.
         Preset &preset = this->printers.default_preset(i);
-        for (const char *key : {"printer_settings_id", "printer_model", "printer_variant"}) preset.config.optptr(key, true);
+        for (const char *key : {"printer_settings_id", "printer_model", "printer_variant","thumbnail_size"}) preset.config.optptr(key, true);
         //if (i == 0) {
             preset.config.optptr("default_print_profile", true);
             preset.config.option<ConfigOptionStrings>("default_filament_profile", true);

src/libslic3r/Print.cpp

@@ -76,6 +76,7 @@ bool Print::invalidate_state_by_config_options(const ConfigOptionResolver & /* n
         "printable_area",
         //BBS: add bed_exclude_area
         "bed_exclude_area",
+        "thumbnail_size",
         "before_layer_change_gcode",
         "enable_pressure_advance",
         "pressure_advance",

src/libslic3r/PrintConfig.cpp

@@ -1708,6 +1708,15 @@ void PrintConfigDef::init_fff_params()
     def->tooltip = L("Enable this to enable the camera on printer to check the quality of first layer");
     def->mode = comDevelop;
     def->set_default_value(new ConfigOptionBool(false));
+
+    // BBS
+    def = this->add("thumbnail_size", coPoints);
+    def->label = L("Thumbnail size");
+    def->tooltip = L("Decides the size of thumbnail stored in gcode files");
+    def->mode = comDevelop;
+    def->gui_type = ConfigOptionDef::GUIType::one_string;
+    def->set_default_value(new ConfigOptionPoints{ Vec2d(50,50) });
+
     //BBS
     // def = this->add("spaghetti_detector", coBool);
     // def->label = L("Enable spaghetti detector");

src/libslic3r/PrintConfig.hpp

@@ -851,6 +851,7 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionFloats,              filament_minimal_purge_on_wipe_tower))
     // BBS
     ((ConfigOptionBool,                scan_first_layer))
+    ((ConfigOptionPoints,              thumbnail_size))
     // ((ConfigOptionBool,                spaghetti_detector))
     ((ConfigOptionBool,                gcode_add_line_number))
     ((ConfigOptionBool,                bbl_bed_temperature_gcode))