support changing thumbnail size

src/libslic3r/GCode.cpp

@@ -1391,8 +1391,18 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
                 .c_str());
 
         // BBS: add plate id into thumbnail render logic
+        //     if (const auto [thumbnails, thumbnails_format] = std::make_pair(
+        //     print.full_print_config().option<ConfigOptionPoints>("thumbnails"),
+        //     print.full_print_config().option<ConfigOptionEnum<GCodeThumbnailsFormat>>("thumbnails_format"));
+        // thumbnails)
+        // GCodeThumbnails::export_thumbnails_to_file(
+        //     thumbnail_cb, thumbnails->values, thumbnails_format ? thumbnails_format->value : GCodeThumbnailsFormat::PNG,
+        //     [&file](const char* sz) { file.write(sz); },
+        //     [&print]() { print.throw_if_canceled(); });
+
+
         DoExport::export_thumbnails_to_file(
-            thumbnail_cb, print.get_plate_index(), {Vec2d(300, 300)},
+            thumbnail_cb, print.get_plate_index(), print.full_print_config().option<ConfigOptionPoints>("thumbnails")->values,
             [&file](const char *sz) { file.write(sz); },
             [&print]() { print.throw_if_canceled(); });
       }

src/libslic3r/Preset.cpp

@@ -774,7 +774,7 @@ static std::vector<std::string> s_Preset_printer_options {
     "printhost_cafile","printhost_port","printhost_authorization_type",
         "printhost_user",
     "printhost_password",
-    "printhost_ssl_ignore_revoke"
+    "printhost_ssl_ignore_revoke", "thumbnails"
 };
 
 static std::vector<std::string> s_Preset_sla_print_options {
@@ -2269,7 +2269,7 @@ 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 == "thumbnails") {
                 // 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

@@ -90,7 +90,7 @@ 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", "thumbnails"}) 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

@@ -134,7 +134,8 @@ bool Print::invalidate_state_by_config_options(const ConfigOptionResolver & /* n
         "wipe_distance",
         "curr_bed_type",
         "nozzle_volume",
-        "chamber_temperature"
+        "chamber_temperature",
+        "thumbnails"
     };
 
     static std::unordered_set<std::string> steps_ignore;

src/libslic3r/PrintConfig.cpp

@@ -2978,6 +2978,13 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionFloat(0));
 
+    def = this->add("thumbnails", coPoints);
+    def->label = L("G-code thumbnails");
+    def->tooltip = L("Picture sizes to be stored into a .gcode and .sl1 / .sl1s files, in the following format: \"XxY, XxY, ...\"");
+    def->mode = comAdvanced;
+    def->gui_type = ConfigOptionDef::GUIType::one_string;
+    def->set_default_value(new ConfigOptionPoints{Vec2d(300, 300)});
+    
     // Declare retract values for filament profile, overriding the printer's extruder profile.
     for (const char *opt_key : {
         // floats

src/libslic3r/PrintConfig.hpp

@@ -802,6 +802,7 @@ PRINT_CONFIG_CLASS_DEFINE(
     //BBS
     ((ConfigOptionEnum<NozzleType>,    nozzle_type))
     ((ConfigOptionBool,                auxiliary_fan))
+
 )
 
 // This object is mapped to Perl as Slic3r::Config::Print.
@@ -911,7 +912,7 @@ PRINT_CONFIG_CLASS_DERIVED_DEFINE(
     ((ConfigOptionBool,               has_prime_tower))
     ((ConfigOptionFloat,              nozzle_volume))
     ((ConfigOptionEnum<TimelapseType>,    timelapse_type))
-
+    ((ConfigOptionPoints,              thumbnails))
 )
 
 // This object is mapped to Perl as Slic3r::Config::Full.