FIX: coPoint type couldn't display

This causes the printer setting page unable to display becase I added a
coPoint type option best_object_pos.

Add reading and writing coPoint type configs solves the problem.

Jira: STUDIO-4303

Change-Id: I34e40e567236d28ab1a7be265128275191fcc935

src/slic3r/GUI/Field.cpp

@@ -66,6 +66,12 @@ wxString double_to_string(double const value, const int max_precision /*= 4*/)
     return s;
 }
 
+wxString get_thumbnail_string(const Vec2d& value)
+{
+    wxString ret_str = wxString::Format("%.2fx%.2f", value[0], value[1]);
+    return ret_str;
+}
+
 wxString get_thumbnails_string(const std::vector<Vec2d>& values)
 {
     wxString ret_str;
@@ -367,6 +373,34 @@ void Field::get_value_by_opt_type(wxString& str, const bool check_value/* = true
 
         m_value = into_u8(str);
 		break; }
+    case coPoint:{
+        Vec2d out_value;
+        str.Replace(" ", wxEmptyString, true);
+        if (!str.IsEmpty()) {
+            bool              invalid_val      = true;
+            double            x, y;
+            wxStringTokenizer thumbnail(str, "x");
+            if (thumbnail.HasMoreTokens()) {
+                wxString x_str = thumbnail.GetNextToken();
+                if (x_str.ToDouble(&x) && thumbnail.HasMoreTokens()) {
+                    wxString y_str = thumbnail.GetNextToken();
+                    if (y_str.ToDouble(&y) && !thumbnail.HasMoreTokens()) {
+                        out_value  = Vec2d(x, y);
+                        invalid_val = false;
+                    }
+                }
+            }
+
+            if (invalid_val) {
+                wxString text_value;
+                if (!m_value.empty()) text_value = get_thumbnail_string(boost::any_cast<Vec2d>(m_value));
+                set_value(text_value, true);
+                show_error(m_parent, format_wxstr(_L("Invalid format. Expected vector format: \"%1%\""), "XxY, XxY, ..."));
+            }
+        }
+
+        m_value = out_value;
+        break; }
 
     case coPoints: {
         std::vector<Vec2d> out_values;
@@ -446,7 +480,7 @@ void Field::sys_color_changed()
 template<class T>
 bool is_defined_input_value(wxWindow* win, const ConfigOptionType& type)
 {
-    if (!win || (static_cast<T*>(win)->GetValue().empty() && type != coString && type != coStrings && type != coPoints))
+    if (!win || (static_cast<T*>(win)->GetValue().empty() && type != coString && type != coStrings && type != coPoints && type != coPoint))
         return false;
     return true;
 }
@@ -495,6 +529,9 @@ void TextCtrl::BUILD() {
 		text_value = vec->get_at(m_opt_idx);
 		break;
 	}
+    case coPoint:
+        text_value = get_thumbnail_string(m_opt.get_default_value<ConfigOptionPoint>()->value);
+        break;
     case coPoints:
         text_value = get_thumbnails_string(m_opt.get_default_value<ConfigOptionPoints>()->values);
         break;
@@ -1621,8 +1658,11 @@ void PointCtrl::BUILD()
 	auto temp = new wxBoxSizer(wxHORIZONTAL);
 
     const wxSize field_size(4 * m_em_unit, -1);
-
-	auto default_pt = m_opt.get_default_value<ConfigOptionPoints>()->values.at(0);
+    Slic3r::Vec2d default_pt;
+    if(m_opt.type == coPoints)
+	    default_pt = m_opt.get_default_value<ConfigOptionPoints>()->values.at(0);
+    else
+        default_pt = m_opt.get_default_value<ConfigOptionPoint>()->value;
 	double val = default_pt(0);
 	wxString X = val - int(val) == 0 ? wxString::Format(_T("%i"), int(val)) : wxNumberFormatter::ToString(val, 2, wxNumberFormatter::Style_None);
 	val = default_pt(1);
@@ -1734,11 +1774,16 @@ void PointCtrl::set_value(const boost::any& value, bool change_event)
 {
 	Vec2d pt(Vec2d::Zero());
     const Vec2d* ptf = boost::any_cast<Vec2d>(&value);
-	if (!ptf)
-	{
+    if (!ptf) {
+        if (m_opt.type == coPoint) {
+            ConfigOptionPoint* pts = boost::any_cast<ConfigOptionPoint*>(value);
+            pt = pts->value;
+        }
+        else {
             ConfigOptionPoints* pts = boost::any_cast<ConfigOptionPoints*>(value);
             pt = pts->values.at(0);
         }
+    }
     else
         pt = *ptf;
 	set_value(pt, change_event);

src/slic3r/GUI/Field.hpp

@@ -38,6 +38,7 @@ using t_change = std::function<void(const t_config_option_key&, const boost::any
 using t_back_to_init = std::function<void(const std::string&)>;
 
 wxString double_to_string(double const value, const int max_precision = 4);
+wxString get_thumbnail_string(const Vec2d& value);
 wxString get_thumbnails_string(const std::vector<Vec2d>& values);
 
 class Field {

src/slic3r/GUI/GUI.cpp

@@ -198,6 +198,10 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
 				config.option<ConfigOptionEnumsGeneric>(opt_key)->set_at(vec_new, opt_index, 0);
 			}
 			break;
+		case coPoint:{
+			config.set_key_value(opt_key, new ConfigOptionPoint(boost::any_cast<Vec2d>(value)));
+			}
+			break;
 		case coPoints:{
 			if (opt_key == "printable_area" || opt_key == "bed_exclude_area" || opt_key=="thumbnail_size") {
 				config.option<ConfigOptionPoints>(opt_key)->values = boost::any_cast<std::vector<Vec2d>>(value);

src/slic3r/GUI/OptionsGroup.cpp

@@ -77,6 +77,7 @@ const t_field& OptionsGroup::build_field(const t_config_option_key& id, const Co
             case coEnums:
                 m_fields.emplace(id, Choice::Create<Choice>(this->ctrl_parent(), opt, id));
 				break;
+            case coPoint:
             case coPoints:
                 m_fields.emplace(id, PointCtrl::Create<PointCtrl>(this->ctrl_parent(), opt, id));
 				break;
@@ -1032,6 +1033,9 @@ boost::any ConfigOptionsGroup::get_config_value(const DynamicPrintConfig& config
     case coEnums:
         ret = config.opt_int(opt_key, idx);
         break;
+    case coPoint:
+        ret = config.option<ConfigOptionPoint>(opt_key)->value;
+        break;
 	case coPoints:
 		if (opt_key == "printable_area")
 			ret = config.option<ConfigOptionPoints>(opt_key)->values;
@@ -1144,6 +1148,9 @@ boost::any ConfigOptionsGroup::get_config_value2(const DynamicPrintConfig& confi
     case coEnums:
         ret = config.opt_int(opt_key, idx);
         break;
+    case coPoint:
+        ret = config.option<ConfigOptionPoint>(opt_key)->value;
+        break;
     case coPoints:
         if (opt_key == "printable_area")
             ret = config.option<ConfigOptionPoints>(opt_key)->values;

src/slic3r/GUI/UnsavedChangesDialog.cpp

@@ -1349,6 +1349,10 @@ static wxString get_string_value(std::string opt_key, const DynamicPrintConfig&
             opt_key == "sparse_infill_pattern",
             opt_idx);
     }
+    case coPoint: {
+        Vec2d val = config.opt<ConfigOptionPoint>(opt_key)->value;
+        return from_u8((boost::format("[%1%]") % ConfigOptionPoint(val).serialize()).str());
+    }
     case coPoints: {
         //BBS: add bed_exclude_area
         if (opt_key == "printable_area") {