#222 expose thumbnails setting to gui

resources/ui_layout/printer_fff.ui

@@ -13,6 +13,10 @@ group:Print Host upload
 	printhost
 group:silent_mode_event:Firmware
 	setting:gcode_flavor
+	line:Gcode thumbnails
+		setting:id$0:label$Small:thumbnails
+		setting:id$1:label$Big:thumbnails
+	end_line
 	setting:silent_mode
 	setting:remaining_times
 	setting:fan_speedup_time

src/libslic3r/GCode.cpp

@@ -1011,9 +1011,14 @@ namespace DoExport {
 	    // Write thumbnails using base64 encoding
 	    if (thumbnail_cb != nullptr)
 	    {
+            std::vector<Vec2d> good_sizes;
+            for (const Vec2d &size : sizes)
+                if (size.x() > 0 && size.y() > 0)
+                    good_sizes.push_back(size);
+
 	        const size_t max_row_length = 78;
 	        ThumbnailsList thumbnails;
-	        thumbnail_cb(thumbnails, sizes, true, true, true, true);
+	        thumbnail_cb(thumbnails, good_sizes, true, true, true, true);
 	        for (const ThumbnailData& data : thumbnails)
 	        {
 	            if (data.is_valid())

src/libslic3r/PrintConfig.cpp

@@ -74,7 +74,7 @@ void PrintConfigDef::init_common_params()
     def = this->add("thumbnails", coPoints);
     def->label = L("Picture sizes to be stored into a .gcode and .sl1 files");
     def->mode = comExpert;
-    def->set_default_value(new ConfigOptionPoints());
+    def->set_default_value(new ConfigOptionPoints{ Vec2d(0,0), Vec2d(0,0) });
 
     def = this->add("layer_height", coFloat);
     def->label = L("Base Layer height");

src/libslic3r/PrintConfig.hpp

@@ -1104,6 +1104,7 @@ public:
     ConfigOptionInt                 standby_temperature_delta;
     ConfigOptionInts                temperature;
     ConfigOptionInt                 threads;
+    ConfigOptionPoints              thumbnails;
     ConfigOptionPercent             time_estimation_compensation;
     ConfigOptionInts                top_fan_speed;
     ConfigOptionBools               wipe;
@@ -1194,6 +1195,7 @@ protected:
         OPT_PTR(standby_temperature_delta);
         OPT_PTR(temperature);
         OPT_PTR(threads);
+        OPT_PTR(thumbnails);
         OPT_PTR(time_estimation_compensation);
         OPT_PTR(top_fan_speed);
         OPT_PTR(wipe);

src/slic3r/GUI/BackgroundSlicingProcess.cpp

@@ -165,8 +165,12 @@ void BackgroundSlicingProcess::process_sla()
             if (m_thumbnail_cb != nullptr)
             {
                 ThumbnailsList thumbnails;
-                m_thumbnail_cb(thumbnails, current_print()->full_print_config().option<ConfigOptionPoints>("thumbnails")->values, true, true, true, true);
+                std::vector<Vec2d> good_sizes;
-//                m_thumbnail_cb(thumbnails, current_print()->full_print_config().option<ConfigOptionPoints>("thumbnails")->values, true, false, true, true); // renders also supports and pad
+                for (const Vec2d &size : current_print()->full_print_config().option<ConfigOptionPoints>("thumbnails")->values)
+                    if (size.x() > 0 && size.y() > 0)
+                        good_sizes.push_back(size);
+                m_thumbnail_cb(thumbnails, good_sizes, true, true, true, true);
+//                m_thumbnail_cb(thumbnails, good_sizes, true, false, true, true); // renders also supports and pad
                 for (const ThumbnailData& data : thumbnails)
                 {
                     if (data.is_valid())
@@ -493,8 +497,12 @@ void BackgroundSlicingProcess::prepare_upload()
         if (m_thumbnail_cb != nullptr)
         {
             ThumbnailsList thumbnails;
-            m_thumbnail_cb(thumbnails, current_print()->full_print_config().option<ConfigOptionPoints>("thumbnails")->values, true, true, true, true);
+            std::vector<Vec2d> good_sizes;
-//            m_thumbnail_cb(thumbnails, current_print()->full_print_config().option<ConfigOptionPoints>("thumbnails")->values, true, false, true, true); // renders also supports and pad
+            for (const Vec2d &size : current_print()->full_print_config().option<ConfigOptionPoints>("thumbnails")->values)
+                if (size.x() > 0 && size.y() > 0)
+                    good_sizes.push_back(size);
+            m_thumbnail_cb(thumbnails, good_sizes, true, true, true, true);
+//            m_thumbnail_cb(thumbnails, good_sizes, true, false, true, true); // renders also supports and pad
             for (const ThumbnailData& data : thumbnails)
             {
                 if (data.is_valid())

src/slic3r/GUI/Field.cpp

@@ -63,6 +63,7 @@ void Field::PostInitialize()
 	case coFloats:
 	case coStrings:
 	case coBools:
+	case coPoints:
 	case coInts: {
 		auto tag_pos = m_opt_id.find("#");
 		if (tag_pos != std::string::npos)

src/slic3r/GUI/Preset.cpp

@@ -614,6 +614,7 @@ const std::vector<std::string>& Preset::printer_options()
         	"machine_max_feedrate_x", "machine_max_feedrate_y", "machine_max_feedrate_z", "machine_max_feedrate_e",
         	"machine_min_extruding_rate", "machine_min_travel_rate",
             "machine_max_jerk_x", "machine_max_jerk_y", "machine_max_jerk_z", "machine_max_jerk_e",
+            "thumbnails",
             "time_estimation_compensation",
             "print_machine_envelope",
             "fan_speedup_time",