little update to config: debug message & fill_smooth_distribution type

src/libslic3r/Config.cpp

@@ -514,7 +514,7 @@ bool ConfigBase::set_deserialize_nothrow(const t_config_option_key &opt_key_src,
 void ConfigBase::set_deserialize(const t_config_option_key &opt_key_src, const std::string &value_src, bool append)
 {
 	if (! this->set_deserialize_nothrow(opt_key_src, value_src, append))
-		throw BadOptionTypeException("ConfigBase::set_deserialize() failed");
+		throw BadOptionTypeException(("ConfigBase::set_deserialize() failed for '"+ opt_key_src+"' = '"+ value_src+"'").c_str());
 }
 
 void ConfigBase::set_deserialize(std::initializer_list<SetDeserializeItem> items)
@@ -560,7 +560,11 @@ bool ConfigBase::set_deserialize_raw(const t_config_option_key &opt_key_src, con
     ConfigOption *opt = this->option(opt_key, true);
     if (opt == nullptr)
         throw new UnknownOptionException(opt_key);
-    return opt->deserialize(value, append);
+    bool ok= opt->deserialize(value, append);
+    if (!ok) {
+        return opt->deserialize(value, append);
+    }
+    return true;
 }
 
 // Return an absolute value of a possibly relative config variable.

src/libslic3r/PrintConfig.cpp

@@ -1308,12 +1308,14 @@ void PrintConfigDef::init_fff_params()
     def->category = OptionCategory::infill;
     def->tooltip = L("This is the width of the ironing pass, in a % of the top extrusion width, should not be more than 50%"
         " (two times more lines, 50% overlap). It's not necessary to go below 25% (four times more lines, 75% overlap). \nIf you have problems with your ironing process,"
-        " don't forget to look at the flow->above bridge flow, as this setting should be set to min 110% to let you have enough plastic in the top layer.");
+        " don't forget to look at the flow->above bridge flow, as this setting should be set to min 110% to let you have enough plastic in the top layer."
+        " A value too low will make your extruder eat the filament.");
     def->min = 0;
     def->mode = comExpert;
+    def->sidetext = L("% or mm");
     def->set_default_value(new ConfigOptionFloatOrPercent(50, true));
 
-    def = this->add("fill_smooth_distribution", coFloatOrPercent);
+    def = this->add("fill_smooth_distribution", coPercent);
     def->label = L("distribution");
     def->full_label = L("Ironing flow distribution");
     def->category = OptionCategory::infill;
@@ -1323,7 +1325,8 @@ void PrintConfigDef::init_fff_params()
     //def->min = 0;
     //def->max = 0.9;
     def->mode = comExpert;
-    def->set_default_value(new ConfigOptionFloatOrPercent(10, true));
+    def->sidetext = L("%");
+    def->set_default_value(new ConfigOptionPercent(10));
 
     def = this->add("first_layer_acceleration", coFloat);
     def->label = L("First layer");
@@ -2941,7 +2944,7 @@ void PrintConfigDef::init_fff_params()
     def->category = OptionCategory::perimeter;
     def->tooltip = L("Allow external perimeter to overlap each other to avoid the use of thin walls. Note that their flow isn't adjusted and so it will result in over-extruding and undefined behavior.");
     def->mode = comExpert;
-    def->set_default_value(new ConfigOptionBool(false));
+    def->set_default_value(new ConfigOptionBool(true));
 
     def = this->add("thin_walls", coBool);
     def->label = L("");

src/libslic3r/PrintConfig.hpp

@@ -601,7 +601,7 @@ public:
     ConfigOptionPercent             fill_density;
     ConfigOptionEnum<InfillPattern> fill_pattern;
     ConfigOptionPercent             fill_top_flow_ratio;
-    ConfigOptionFloatOrPercent      fill_smooth_distribution;
+    ConfigOptionPercent             fill_smooth_distribution;
     ConfigOptionFloatOrPercent      fill_smooth_width;
     ConfigOptionBool                gap_fill;
     ConfigOptionFloatOrPercent      gap_fill_min_area;