FIX: object params variant crash

Change-Id: Ia67b98c29a0cc97f8479911ffdefb942cb6c751f
Jira: none
(cherry picked from commit 8bf65c0963d1ee39bba12f67f33177d4ac6d6a60)

src/libslic3r/Config.cpp

@@ -453,10 +453,12 @@ void ConfigBase::apply_only(const ConfigBase &other, const t_config_option_keys
             // This is only possible if other is of DynamicConfig type.
             if (auto n = opt_key.find('#'); n != std::string::npos) {
                 auto opt_key2 = opt_key.substr(0, n);
-                auto my_opt2 = dynamic_cast<ConfigOptionVectorBase*>(this->option(opt_key2, true));
+                auto my_opt2 = dynamic_cast<ConfigOptionVectorBase*>(this->option(opt_key2));
+                auto other_opt = other.option(opt_key2);
+                if (my_opt2 == nullptr && other_opt)
+                    my_opt2 = dynamic_cast<ConfigOptionVectorBase*>(other_opt->clone());
                 if (my_opt2) {
                     int index = std::atoi(opt_key.c_str() + n + 1);
-                    auto other_opt = other.option(opt_key2);
                     if (other_opt)
                         my_opt2->set_at(other_opt, index, index);
                     continue;

src/libslic3r/PrintConfig.cpp

@@ -527,6 +527,10 @@ std::vector<std::map<int, int>> get_extruder_ams_count(const std::vector<std::st
     std::vector<std::map<int, int>> extruder_ams_counts;
     for (const std::string& str : strs) {
         std::map<int, int> ams_count_info;
+        if (str.empty()) {
+            extruder_ams_counts.emplace_back(ams_count_info);
+            continue;
+        }
         std::vector<std::string> ams_infos;
         boost::algorithm::split(ams_infos, str, boost::algorithm::is_any_of("|"));
         for (const std::string& ams_info : ams_infos) {

src/slic3r/GUI/Field.cpp

@@ -1015,8 +1015,8 @@ void CheckBox::set_value(const boost::any& value, bool change_event)
     m_disable_change_event = !change_event;
     if (m_opt.nullable) {
         const bool is_value_unsigned_char = value.type() == typeid(unsigned char);
-        m_is_na_val = is_value_unsigned_char &&
+        m_is_na_val = value.empty() || (is_value_unsigned_char &&
-                      boost::any_cast<unsigned char>(value) == ConfigOptionBoolsNullable::nil_value();
+                      boost::any_cast<unsigned char>(value) == ConfigOptionBoolsNullable::nil_value());
         if (!m_is_na_val)
             m_last_meaningful_value = is_value_unsigned_char ? value : static_cast<unsigned char>(boost::any_cast<bool>(value));
 

src/slic3r/GUI/Tab.cpp

@@ -2829,7 +2829,9 @@ void TabPrintModel::update_model_config()
     //update();
     if (!m_null_keys.empty()) {
         if (m_active_page) {
-            for (auto k : m_null_keys) {
+            auto null_keys = m_null_keys;
+            filter_diff_option(null_keys);
+            for (auto k : null_keys) {
                 auto f = m_active_page->get_field(k);
                 if (f)
                     f->set_value(boost::any(), false);
@@ -2862,7 +2864,9 @@ void TabPrintModel::activate_selected_page(std::function<void()> throw_if_cancel
 {
     TabPrint::activate_selected_page(throw_if_canceled);
     if (m_active_page) {
-        for (auto k : m_null_keys) {
+        auto null_keys = m_null_keys;
+        filter_diff_option(null_keys);
+        for (auto k : null_keys) {
             auto f = m_active_page->get_field(k);
             if (f)
                 f->set_value(boost::any(), false);
@@ -2896,6 +2900,7 @@ void TabPrintModel::on_value_change(const std::string& opt_id, const boost::any&
     bool set   = true; // *m_config->option(k) != *m_prints.get_selected_preset().config.option(k) || inull != m_null_keys.end();
     auto tab_opt = dynamic_cast<ConfigOptionVectorBase *>(m_config->option(opt_key));
     static std::map<ConfigOptionType, ConfigOptionVectorBase const *> null_vecs {
+        {coBools, new ConfigOptionBoolsNullable(std::initializer_list<unsigned char>{ConfigOptionBoolsNullable::nil_value()})},
         {coInts, new ConfigOptionIntsNullable(1, ConfigOptionIntsNullable::nil_value())},
         {coFloats, new ConfigOptionFloatsNullable(1, ConfigOptionFloatsNullable::nil_value())},
         {coPercents, new ConfigOptionPercentsNullable(1, ConfigOptionPercentsNullable::nil_value())},
@@ -2952,7 +2957,15 @@ void TabPrintModel::on_value_change(const std::string& opt_id, const boost::any&
 void TabPrintModel::reload_config()
 {
     TabPrint::reload_config();
-    auto keys = m_config_manipulation.applying_keys();
+    if (m_active_page) {
+        auto null_keys = m_null_keys;
+        filter_diff_option(null_keys);
+        for (auto k : null_keys) {
+            auto f = m_active_page->get_field(k);
+            if (f) f->set_value(boost::any(), false);
+        }
+    }
+    auto keys          = m_config_manipulation.applying_keys();
     bool super_changed = false;
     for (auto & k : keys) {
         if (has_key(k)) {