feat(editor): revert value on parse failure + nicer float printing

core/src/datatypes/base.cpp

@@ -1,5 +1,7 @@
 #include "base.h"
 #include "meta.h"
+#include <ios>
+#include <sstream>
 
 #define IMPL_WRAPPER_CLASS(CLASS_NAME, WRAPPED_TYPE, TYPE_NAME) Data::CLASS_NAME::CLASS_NAME(WRAPPED_TYPE in) : value(in) {} \
 Data::CLASS_NAME::~CLASS_NAME() = default; \
@@ -45,7 +47,7 @@ Data::Variant Data::Bool::Deserialize(pugi::xml_node node) {
     return Data::Bool(node.text().as_bool());
 }
 
-Data::Variant Data::Bool::FromString(std::string string) {
+std::optional<Data::Variant> Data::Bool::FromString(std::string string) {
     return Data::Bool(string[0] == 't' || string[0] == 'T' || string[0] == '1' || string[0] == 'y' || string[0] == 'Y');
 }
 
@@ -58,21 +60,29 @@ Data::Variant Data::Int::Deserialize(pugi::xml_node node) {
     return Data::Int(node.text().as_int());
 }
 
-Data::Variant Data::Int::FromString(std::string string) {
-    return Data::Int(std::stoi(string));
+std::optional<Data::Variant> Data::Int::FromString(std::string string) {
+    char* endPos;
+    int value = (int)std::strtol(string.c_str(), &endPos, 10);
+    if (endPos == string.c_str()) return std::nullopt;
+    return Data::Int(value);
 }
 
 
 const Data::String Data::Float::ToString() const {
-    return Data::String(std::to_string(value));
+    std::stringstream stream;
+    stream << std::noshowpoint << value;
+    return Data::String(stream.str());
 }
 
 Data::Variant Data::Float::Deserialize(pugi::xml_node node) {
     return Data::Float(node.text().as_float());
 }
 
-Data::Variant Data::Float::FromString(std::string string) {
-    return Data::Float(std::stof(string));
+std::optional<Data::Variant> Data::Float::FromString(std::string string) {
+    char* endPos;
+    float value = std::strtof(string.c_str(), &endPos);
+    if (endPos == string.c_str()) return std::nullopt;
+    return Data::Float(value);
 }
 
 
@@ -84,6 +94,6 @@ Data::Variant Data::String::Deserialize(pugi::xml_node node) {
     return Data::String(node.text().as_string());
 }
 
-Data::Variant Data::String::FromString(std::string string) {
+std::optional<Data::Variant> Data::String::FromString(std::string string) {
     return Data::String(string);
 }

core/src/datatypes/base.h

@@ -2,6 +2,7 @@
 
 #include <string>
 #include <functional>
+#include <optional>
 #include <pugixml.hpp>
 
 #define DEF_WRAPPER_CLASS(CLASS_NAME, WRAPPED_TYPE) class CLASS_NAME : public Data::Base { \
@@ -16,13 +17,13 @@ public: \
     virtual const Data::String ToString() const override; \
     virtual void Serialize(pugi::xml_node node) const override; \
     static Data::Variant Deserialize(pugi::xml_node node); \
-    static Data::Variant FromString(std::string); \
+    static std::optional<Data::Variant> FromString(std::string); \
 };
 
 namespace Data {
     class Variant;
     typedef std::function<Data::Variant(pugi::xml_node)> Deserializer;
-    typedef std::function<Data::Variant(std::string)> FromString;
+    typedef std::function<std::optional<Data::Variant>(std::string)> FromString;
 
     struct TypeInfo {
         std::string name;

core/src/datatypes/vector.cpp

@@ -21,7 +21,7 @@ Data::Vector3 Data::Vector3::ONE(1, 1, 1);
 
 const Data::String Data::Vector3::ToString() const {
     // https://stackoverflow.com/a/46424921/16255372
-    std::ostringstream stream;
+    std::stringstream stream;
     stream << std::setprecision(8) << std::noshowpoint << X() << ", " << Y() << ", " << Z();
     return stream.str();
 }
@@ -80,11 +80,11 @@ Data::Variant Data::Vector3::Deserialize(pugi::xml_node node) {
     return Data::Vector3(node.child("X").text().as_float(), node.child("Y").text().as_float(), node.child("Z").text().as_float());
 }
 
-Data::Variant Data::Vector3::FromString(std::string string) {
+std::optional<Data::Variant> Data::Vector3::FromString(std::string string) {
     float components[3];
 
     for (int i = 0; i < 3; i++) {
-        if (string.length() == 0) return Data::Vector3(0, 0, 0);
+        if (string.length() == 0) return std::nullopt;
         while (string[0] == ' ' && string.length() > 0) string.erase(0, 1);
         size_t nextPos = string.find(",");
         if (nextPos == -1) nextPos = string.length();
@@ -93,7 +93,7 @@ Data::Variant Data::Vector3::FromString(std::string string) {
 
         char* cpos;
         float value = std::strtof(term.c_str(), &cpos);
-        if (cpos == term.c_str()) return Data::Vector3(0, 0, 0);
+        if (cpos == term.c_str()) return std::nullopt;
 
         components[i] = value;
     }

core/src/datatypes/vector.h

@@ -27,7 +27,7 @@ namespace Data {
         virtual void Serialize(pugi::xml_node node) const override;
 
         static Data::Variant Deserialize(pugi::xml_node node);
-        static Data::Variant FromString(std::string);
+        static std::optional<Data::Variant> FromString(std::string);
 
         operator glm::vec3() const;
         operator rp::Vector3() const;

editor/panes/propertiesview.cpp

@@ -40,7 +40,7 @@ public:
         }
     };
 
-    QWidget * createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override {
+    QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override {
         if (index.column() == 0) return nullptr;
     
         if (!index.parent().isValid() || !view->currentInstance || view->currentInstance->expired()) return nullptr;
@@ -84,6 +84,35 @@ public:
         editor->setGeometry(option.rect.adjusted(-view->indentation(), 0, -view->indentation(), 0));
     }
 
+    void setEditorData(QWidget *editor, const QModelIndex &index) const override {
+        if (index.column() == 0) return;
+    
+        if (!index.parent().isValid() || !view->currentInstance || view->currentInstance->expired()) return;
+        InstanceRef inst = view->currentInstance->lock();
+
+        std::string propertyName = view->itemFromIndex(index)->data(0, Qt::DisplayRole).toString().toStdString();
+        PropertyMeta meta = inst->GetPropertyMeta(propertyName).value();
+        Data::Variant currentValue = inst->GetPropertyValue(propertyName).value();
+
+        if (meta.type == &Data::Float::TYPE) {
+            QDoubleSpinBox* spinBox = dynamic_cast<QDoubleSpinBox*>(editor);
+
+            spinBox->setValue(currentValue.get<Data::Float>());
+        } else if (meta.type == &Data::Int::TYPE) {
+            QSpinBox* spinBox = dynamic_cast<QSpinBox*>(editor);
+
+            spinBox->setValue(currentValue.get<Data::Int>());
+        } else if (meta.type == &Data::String::TYPE) {
+            QLineEdit* lineEdit = dynamic_cast<QLineEdit*>(editor);
+
+            lineEdit->setText(QString::fromStdString((std::string)currentValue.get<Data::String>()));
+        } else if (meta.type->fromString) {
+            QLineEdit* lineEdit = dynamic_cast<QLineEdit*>(editor);
+
+            lineEdit->setText(QString::fromStdString((std::string)currentValue.ToString()));
+        }
+    }
+
     void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override {
         if (index.column() == 0) return;
     
@@ -97,18 +126,24 @@ public:
             QDoubleSpinBox* spinBox = dynamic_cast<QDoubleSpinBox*>(editor);
 
             inst->SetPropertyValue(propertyName, Data::Float((float)spinBox->value()));
+            model->setData(index, spinBox->value());
         } else if (meta.type == &Data::Int::TYPE) {
             QSpinBox* spinBox = dynamic_cast<QSpinBox*>(editor);
 
             inst->SetPropertyValue(propertyName, Data::Int((float)spinBox->value()));
+            model->setData(index, spinBox->value());
         } else if (meta.type == &Data::String::TYPE) {
             QLineEdit* lineEdit = dynamic_cast<QLineEdit*>(editor);
 
             inst->SetPropertyValue(propertyName, Data::String(lineEdit->text().toStdString()));
+            model->setData(index, lineEdit->text());
         } else if (meta.type->fromString) {
             QLineEdit* lineEdit = dynamic_cast<QLineEdit*>(editor);
 
-            inst->SetPropertyValue(propertyName, meta.type->fromString(lineEdit->text().toStdString()));
+            std::optional<Data::Variant> parsedResult = meta.type->fromString(lineEdit->text().toStdString());
+            if (!parsedResult) return;
+            inst->SetPropertyValue(propertyName, parsedResult.value());
+            model->setData(index, QString::fromStdString(parsedResult.value().ToString()));
         }
     }
 };