fixed error detection and improved error reporting in IdValidator

apps/opencs/view/world/genericcreator.cpp

@@ -154,16 +154,10 @@ std::string CSVWorld::GenericCreator::getErrors() const
 {
     std::string errors;
 
-    std::string id = getId();
-
-    if (id.empty())
-    {
-        errors = "Missing ID";
-    }
-    else if (mData.hasId (id))
-    {
+    if (!mId->hasAcceptableInput())
+        errors = mValidator->getError();
+    else if (mData.hasId (getId()))
         errors = "ID is already in use";
-    }
 
     return errors;
 }

apps/opencs/view/world/idvalidator.cpp

@@ -20,6 +20,8 @@ CSVWorld::IdValidator::IdValidator (bool relaxed, QObject *parent)
 
 QValidator::State CSVWorld::IdValidator::validate (QString& input, int& pos) const
 {
+    mError.clear();
+
     if (mRelaxed)
     {
         if (input.indexOf ('"')!=-1 || input.indexOf ("::")!=-1 || input.indexOf ("#")!=-1)
@@ -27,6 +29,12 @@ QValidator::State CSVWorld::IdValidator::validate (QString& input, int& pos) con
     }
     else
     {
+        if (input.isEmpty())
+        {
+            mError = "Missing ID";
+            return QValidator::Intermediate;
+        }
+
         bool first = true;
         bool scope = false;
         bool prevScope = false;
@@ -88,8 +96,17 @@ QValidator::State CSVWorld::IdValidator::validate (QString& input, int& pos) con
             }
         }
 
+        if (scope)
+        {
+            mError = "ID ending with incomplete scope operator";
+            return QValidator::Intermediate;
+        }
+
         if (prevScope)
-            return QValidator::Intermediate; // ending with scope operator
+        {
+            mError = "ID ending with scope operator";
+            return QValidator::Intermediate;
+        }
     }
 
     return QValidator::Acceptable;
@@ -98,4 +115,9 @@ QValidator::State CSVWorld::IdValidator::validate (QString& input, int& pos) con
 void CSVWorld::IdValidator::setNamespace (const std::string& namespace_)
 {
     mNamespace = Misc::StringUtils::lowerCase (namespace_);
+}
+
+std::string CSVWorld::IdValidator::getError() const
+{
+    return mError;
 }

apps/opencs/view/world/idvalidator.hpp

@@ -11,6 +11,7 @@ namespace CSVWorld
     {
             bool mRelaxed;
             std::string mNamespace;
+            mutable std::string mError;
 
         private:
 
@@ -25,6 +26,12 @@ namespace CSVWorld
 
             void setNamespace (const std::string& namespace_);
 
+            /// Return a description of the error that resulted in the last call of validate
+            /// returning QValidator::Intermediate. If the last call to validate returned
+            /// a different value (or if there was no such call yet), an empty string is
+            /// returned.
+            std::string getError() const;
+
     };
 }